JP2011000480A - Absorptive article - Google Patents

Absorptive article Download PDF

Info

Publication number
JP2011000480A
JP2011000480A JP2010225852A JP2010225852A JP2011000480A JP 2011000480 A JP2011000480 A JP 2011000480A JP 2010225852 A JP2010225852 A JP 2010225852A JP 2010225852 A JP2010225852 A JP 2010225852A JP 2011000480 A JP2011000480 A JP 2011000480A
Authority
JP
Japan
Prior art keywords
shaped
protruding end
area
leak
predetermined direction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2010225852A
Other languages
Japanese (ja)
Inventor
Kumiko Nishikawa
久美子 西川
Atsushi Kudo
淳 工藤
Takuya Miyama
拓也 深山
Chiemi Habu
知恵美 土生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unicharm Corp
Original Assignee
Unicharm Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Unicharm Corp filed Critical Unicharm Corp
Priority to JP2010225852A priority Critical patent/JP2011000480A/en
Publication of JP2011000480A publication Critical patent/JP2011000480A/en
Pending legal-status Critical Current

Links

Images

Abstract

PROBLEM TO BE SOLVED: To provide an adsorptive article capable of restraining separation in a leakage preventive groove.SOLUTION: This absorptive article 1 includes an obverse sheet part 2 of which at least one part is liquid permeable, a liquid impermeable reverse sheet 3, an absorptive body 4 arranged between the obverse sheet part 2 and the reverse sheet part 3, and a leakage preventive groove part 10 having one or a plurality of leakage preventive grooves 100 formed continuously with press-bonding parts for press-bonding the obverse sheet part 2 and the absorptive body 4. The leakage preventive groove part 10 includes a plurality of U-shaped parts U2, U3 formed into a substantial U-shape. Shapes of the plurality of U-shaped parts U2, U3 are regulated by the number of the leakage preventive grooves 100 formed along width directions of the U-shaped parts U2, U3.

Description

本発明は、吸収性物品に関する。   The present invention relates to an absorbent article.

従来より、経血などの液体を吸収する吸収性物品は、液体を吸収する吸収層と、この吸収層の肌側表面を覆う液透過性の表面シートと、前記吸収層の着衣側表面を覆う液不透過性の裏面シートとを有する。この吸収性物品は、下着のクロッチ布の内面に前記裏面シートが感圧接着層を介して接着された状態で着用される。そして、吸収層において一旦吸収された体液の漏れを防止すると共に装着性を良好にするために、表面シートと吸収層とを連続的に圧着処理することで形成される所定形状の防漏溝が設けられている。   Conventionally, an absorbent article that absorbs liquid such as menstrual blood covers an absorption layer that absorbs liquid, a liquid-permeable surface sheet that covers the skin-side surface of the absorption layer, and a clothing-side surface of the absorption layer. A liquid-impermeable back sheet. This absorbent article is worn in a state where the back sheet is bonded to the inner surface of an underwear crotch cloth via a pressure-sensitive adhesive layer. And in order to prevent leakage of bodily fluid once absorbed in the absorbent layer and to improve the wearability, there is a leak-proof groove having a predetermined shape formed by continuously pressing the topsheet and the absorbent layer. Is provided.

この防漏溝は、例えば、吸収層に吸収された液体が吸収性物品における長手方向に流れないよう該吸収層における長手方向に突出するような略Ｕ字状に形成されたＵ字部を備える。また、更に高い防漏効果を得るために、長手方向に複数のＵ字部が形成された吸収性物品も提案されている。ここで、このように長手方向に複数のＵ字部を形成した場合、長手方向における内側に形成されるＵ字部の幅方向には、他のＵ字部を構成する防漏溝を含む複数の防漏溝が形成されることになる。   The leak-proof groove includes, for example, a U-shaped portion that is formed in a substantially U shape so as to protrude in the longitudinal direction of the absorbent layer so that the liquid absorbed in the absorbent layer does not flow in the longitudinal direction of the absorbent article. . Moreover, in order to acquire a still higher leak-proof effect, the absorbent article in which the several U-shaped part was formed in the longitudinal direction is also proposed. Here, when a plurality of U-shaped portions are formed in the longitudinal direction as described above, a plurality of leak-proof grooves constituting other U-shaped portions are provided in the width direction of the U-shaped portion formed inside in the longitudinal direction. The leakage prevention groove is formed.

このように幅方向に複数の防漏溝が形成されている場合、該Ｕ字部における圧着部を形成する際に加えられる圧力が不十分になる場合がある。これにより、防漏溝の深さが浅くなり、該防漏溝を形成する圧着部における剥離が生じやすくなる場合がある。そして、この防漏溝を形成する圧着部の剥離は、漏れ防止性能や装着性を低下させる。   Thus, when the several leak-proof groove is formed in the width direction, the pressure applied when forming the crimping | compression-bonding part in this U-shaped part may become inadequate. Thereby, the depth of the leak-proof groove becomes shallow, and peeling at the pressure-bonding portion that forms the leak-proof groove is likely to occur. And peeling of the crimping | compression-bonding part which forms this leak-proof groove reduces leak prevention performance and mounting property.

そこで、例えば、防漏溝が幅方向において２本以下である領域における防漏溝の圧着部を、少なくとも他の一つの防漏溝における圧着部と幅方向において重ならないように形成することで、防漏溝の剥離を抑制する吸収性物品が提供されている（例えば、特許文献１参照）。   Therefore, for example, by forming the pressure-bonding portion of the leakage-proof groove in the region having two or less leakage-proof grooves in the width direction so as not to overlap with the pressure-bonding portion in at least one other leakage-proof groove, An absorptive article which suppresses exfoliation of a leak-proof groove is provided (for example, refer to patent documents 1).

特開２００１−１２９０１８号公報JP 2001-129018 A

しかしながら、Ｕ字状に形成された防漏溝における長手方向の突端部における剥離（浮き）が防止された吸収性物品は未だ提案されていない。また、特許文献１では、防漏溝が幅方向において２本以下である領域における防漏溝の圧着部を、少なくとも他の一つの防漏溝における圧着部と幅方向において重ならないように形成することで、圧着工程により形成される各圧着部に加えられる圧力を十分なものにして防漏溝の深さが浅くならないようにした吸収性物品を提供しているが、幅方向に連続して形成される圧着部を含むＵ字部における突端部の剥離を抑制するものではない。そして、これらが本発明の課題といってよい。   However, an absorbent article in which peeling (lifting) at the protruding end in the longitudinal direction of the leak-proof groove formed in a U shape has not been proposed yet. Moreover, in patent document 1, the crimping | crimped part of the leak-proof groove in the area | region which has two or less leak-proof grooves in the width direction is formed so that it may not overlap with the crimping part in at least one other leak-proof groove in the width direction. By providing the absorbent article with sufficient pressure applied to each crimping part formed by the crimping process so that the depth of the leak-proof groove does not become shallow, but continuously in the width direction It does not suppress peeling of the protruding end portion in the U-shaped portion including the formed crimping portion. And these may be the subject of the present invention.

本発明は、以上のような課題に鑑みてなされたものであり、防漏溝における剥離が抑制された吸収性物品を提供することを目的とする。   This invention is made | formed in view of the above subjects, and it aims at providing the absorbent article by which peeling in the leak-proof groove was suppressed.

発明者は、上記目的を達成するため、防漏溝が形成するＵ字部の形状を、該Ｕ字部における長手方向に突出した突端部の幅方向に形成される防漏溝の数等を踏まえて調整することで、防漏溝における剥離（浮き）を抑制できることを見出し、以下のような吸収性物品を発明した。   In order to achieve the above object, the inventor sets the shape of the U-shaped portion formed by the leakage-proof groove, the number of leakage-proof grooves formed in the width direction of the protruding end portion protruding in the longitudinal direction of the U-shaped portion, and the like. By adjusting based on this, it was found that peeling (floating) in the leak-proof groove can be suppressed, and the following absorbent article was invented.

（１） 少なくとも一部が液透過性の表面シート部と、液不透過性の裏面シート部と、前記表面シート部と前記裏面シート部との間に配置される吸収体部と、前記表面シート部及び前記吸収体部を圧着する圧着部が連続的に形成されてなる１又は複数の防漏溝を有する防漏溝部と、を備える略縦長状の吸収性物品であって、前記防漏溝部は、該吸収性物品の長手方向における所定方向に突出する第１突端部を有すると共に、前記第１突端部の該吸収性物品における幅方向に１又は複数本の防漏溝が形成される略Ｕ字状の第１Ｕ字部と、前記第１Ｕ字部の前記所定方向側に形成され、前記所定方向に突出する第２突端部を有すると共に、前記第２突端部の前記幅方向に前記第１突端部の前記幅方向に形成される前記防漏溝と同じ又は少ない数の防漏溝が形成される略Ｕ字状の第２Ｕ字部と、を備え、前記第１突端部における前記所定方向側の外周部に接する第１接線と、前記第１接線に平行で前記第１接線から前記所定方向とは反対の方向に所定距離だけ離間する第１平行線との間に配置される前記第１Ｕ字部の面積である第１面積は、前記第２突端部における前記所定方向側の外周部に接する第２接線と、前記第２接線に平行で前記第２接線から前記所定方向とは反対の方向に前記所定距離だけ離間する第２平行線との間に配置される前記第２Ｕ字部の面積である第２面積と同じ又は第２面積よりも小さい吸収性物品。   (1) At least a part of which is a liquid-permeable top sheet part, a liquid-impermeable back sheet part, an absorber part disposed between the top sheet part and the back sheet part, and the top sheet And a leak-proof groove part having one or a plurality of leak-proof grooves formed by continuously forming a pressure-bonding part that presses the absorbent part and the absorbent body part, the leak-proof groove part Has a first protruding end protruding in a predetermined direction in the longitudinal direction of the absorbent article, and one or more leakage prevention grooves are formed in the width direction of the absorbent article at the first protruding end. A U-shaped first U-shaped portion; a second protruding end portion that is formed on the predetermined direction side of the first U-shaped portion and protrudes in the predetermined direction; and The same or less number of the leakage preventing grooves formed in the width direction of one protruding end A substantially U-shaped second U-shaped portion in which a leakage groove is formed, and a first tangent that is in contact with the outer peripheral portion on the predetermined direction side of the first protruding end, and the first tangent that is parallel to the first tangent The first area, which is the area of the first U-shaped portion disposed between the first parallel line and the first parallel line that is separated from the tangent by a predetermined distance in a direction opposite to the predetermined direction, is the predetermined direction at the second protruding end. The second tangent line that is in contact with the outer peripheral portion on the side and the second parallel line that is parallel to the second tangent line and spaced apart from the second tangent line by a predetermined distance in a direction opposite to the predetermined direction. An absorbent article that is the same as or smaller than the second area that is the area of the second U-shaped portion.

（１）の発明によれば、吸収性物品は、少なくとも一部が液透過性の表面シート部と、液不透過性の裏面シート部と、表面シート部と前記裏面シート部との間に配置される吸収体部と、表面シート部及び吸収体部を圧着する圧着部が連続的に形成されてなる１又は複数の防漏溝を有する防漏溝部と、を備える略縦長状の吸収性物品である。防漏溝部は、該吸収性物品の長手方向における所定方向に突出する第１突端部を有すると共に第１突端部の該吸収性物品における幅方向に１又は複数本の防漏溝が形成される略Ｕ字状の第１Ｕ字部と、第１Ｕ字部の所定方向側に形成され所定方向に突出する第２突端部を有すると共に第２突端部の幅方向に第１突端部の幅方向に形成される防漏溝と同じ又は少ない数の防漏溝が形成される略Ｕ字状の第２Ｕ字部と、を備える。そして、第１突端部における所定方向側の外周部に接する第１接線と、第１接線に平行で第１接線から所定方向とは反対の方向に所定距離だけ離間する第１平行線との間に配置される第１Ｕ字部の面積である第１面積は、第２突端部における所定方向側の外周部に接する第２接線と、第２接線に平行で前記第２接線から所定方向とは反対の方向に所定距離だけ離間する第２平行線との間に配置される第２Ｕ字部の面積である第２面積と同じ又は第２面積よりも小さい。   According to the invention of (1), the absorbent article is disposed at least partially between the liquid-permeable top sheet portion, the liquid-impermeable back sheet portion, and the top sheet portion and the back sheet portion. Absorbent article having a longitudinally long absorbent article, and a leak-proof groove part having one or a plurality of leak-proof grooves formed by continuously forming a pressure-bonding part for pressure-bonding the surface sheet part and the absorber part It is. The leakage preventing groove has a first protruding end protruding in a predetermined direction in the longitudinal direction of the absorbent article, and one or more leakage preventing grooves are formed in the width direction of the absorbent article at the first protruding end. It has a substantially U-shaped first U-shaped portion, a second protruding end portion that is formed on a predetermined direction side of the first U-shaped portion and protrudes in a predetermined direction, and extends in the width direction of the second protruding end portion in the width direction of the first protruding end portion. A substantially U-shaped second U-shaped portion in which the same or a small number of leakage-proof grooves are formed. And between the 1st tangent which touches the peripheral part by the side of the predetermined direction in the 1st tip and the 1st parallel line which is parallel to the 1st tangent and is separated from the 1st tangent in the direction opposite to the predetermined direction by a predetermined distance The first area, which is the area of the first U-shaped portion disposed in the second tangent, is defined as a second tangent line that is in contact with the outer peripheral portion on the predetermined direction side of the second protrusion and a predetermined direction from the second tangent line that is parallel to the second tangent line. It is the same as or smaller than the second area, which is the area of the second U-shaped portion arranged between the second parallel lines separated by a predetermined distance in the opposite direction.

防漏溝部における第１Ｕ字部と第２Ｕ字部とを、第１突端部における所定方向側の外周部に接する第１接線と、第１接線に平行で第１接線から所定方向とは反対の方向に所定距離だけ離間する第１平行線との間に配置される第１Ｕ字部の面積である第１面積が、第２突端部における所定方向側の外周部に接する第２接線と、第２接線に平行で前記第２接線から所定方向とは反対の方向に所定距離だけ離間する第２平行線との間に配置される第２Ｕ字部の面積である第２面積と同じ又は第２面積よりも小さくなるように形成することで、第１突端部における圧着部を形成するための圧力が、他の領域における圧力、例えば、第２突端部における圧力よりも大幅に小さくなることを抑制することができる。これにより、例えば、第１突端部における剥離を抑制することができる。   The first U-shaped portion and the second U-shaped portion in the leakage preventing groove portion are connected to the first tangent line that is in contact with the outer peripheral portion on the predetermined direction side of the first protruding end portion, and is parallel to the first tangent line and opposite to the predetermined direction from the first tangent line. A first area that is an area of a first U-shaped portion that is arranged between the first parallel lines that are separated by a predetermined distance in the direction, and a second tangent line that is in contact with an outer peripheral portion on a predetermined direction side of the second protruding end portion; Same or second as the second area, which is the area of the second U-shaped portion disposed between the second parallel line parallel to the two tangent lines and separated from the second tangent line by a predetermined distance in a direction opposite to the predetermined direction. By forming it so as to be smaller than the area, it is possible to suppress that the pressure for forming the crimping portion at the first protruding end is significantly smaller than the pressure at other regions, for example, the pressure at the second protruding end. can do. Thereby, for example, peeling at the first protruding end can be suppressed.

第１面積や第２面積を調整するには、例えば、後述するＵ字部の突端部における曲率半径を調整することや、Ｕ字部の突端部近傍における防漏溝の太さを調整することを例示できる。ここで、突端部における接線から所定距離だけ離間する平行線は、例えば、突端部における長手方向の内周部と接する平行線であることが好ましい。   In order to adjust the first area and the second area, for example, the radius of curvature at the protruding portion of the U-shaped portion, which will be described later, is adjusted, or the thickness of the leak-proof groove in the vicinity of the protruding portion of the U-shaped portion is adjusted. Can be illustrated. Here, the parallel lines that are separated from the tangent line at the projecting end portion by a predetermined distance are preferably, for example, parallel lines that are in contact with the inner peripheral portion of the projecting end portion in the longitudinal direction.

また、第１Ｕ字部及び第２Ｕ字部は略Ｕ字状に形成されているが、該Ｕ字状とは完全なＵ字に限定されず、Ｖ字や円弧も含む。   Moreover, although the 1st U-shaped part and the 2nd U-shaped part are formed in the substantially U shape, this U shape is not limited to a complete U shape, A V shape and a circular arc are also included.

（２） 前記防漏溝部は、前記第２Ｕ字部の前記所定方向側に形成され、前記所定方向に突出する第３突端部を有すると共に、前記第３突端部の前記幅方向に防漏溝が配置されない略Ｕ字状の第３Ｕ字部と、を備え、前記第３突端部における前記所定方向側の外周部に接する第３接線と、前記第３接線に平行で前記第３接線から前記所定方向とは反対側に前記所定距離だけ離間する第３平行線との間に配置される前記第３Ｕ字部の面積である第３面積は、前記第１面積及び前記第２面積よりも大きい（１）に記載の吸収性物品。   (2) The leak-proof groove portion is formed on the predetermined direction side of the second U-shaped portion, has a third protruding end portion protruding in the predetermined direction, and has a leakage-proof groove in the width direction of the third protruding end portion. A third U-shaped portion that is substantially U-shaped, not disposed, a third tangent that contacts the outer peripheral portion on the predetermined direction side of the third protruding end, and the third tangent that is parallel to the third tangent and from the third tangent A third area, which is an area of the third U-shaped portion disposed between the third parallel lines separated by the predetermined distance on the side opposite to the predetermined direction, is larger than the first area and the second area. The absorbent article as described in (1).

（２）の発明によれば、吸収性物品は、防漏溝部が、第２Ｕ字部の所定方向側に形成され、所定方向に突出する第３突端部を有すると共に第３突端部の幅方向に防漏溝が配置されない略Ｕ字状の第３Ｕ字部と、を備える。そして、第３突端部における所定方向側の外周部に接する第３接線と、第３接線に平行で第３接線から所定方向とは反対側に所定距離だけ離間する第３平行線との間に配置される第３Ｕ字部の面積である第３面積は、第１面積及び前記第２面積よりも大きい。   According to the invention of (2), in the absorbent article, the leakage preventing groove portion is formed on the predetermined direction side of the second U-shaped portion, has the third protruding end portion protruding in the predetermined direction, and the width direction of the third protruding end portion. A substantially U-shaped third U-shaped portion in which no leak-proof groove is disposed. And between the 3rd tangent line which touches the peripheral part by the side of the predetermined direction in the 3rd tip part, and the 3rd parallel line which is parallel to the 3rd tangent line, and is spaced apart from the predetermined direction from the 3rd tangent side by the predetermined distance The third area, which is the area of the third U-shaped portion to be arranged, is larger than the first area and the second area.

これにより、例えば、長手方向における外側に形成され幅方向に防漏溝が形成されていない第３Ｕ字部における第３面積を、突端部における幅方向に防漏溝が形成される第１Ｕ字部及び第２Ｕ字部における第１面積及び第２面積よりも大きくすることで、例えば、第１突端部における圧着部を形成するための圧力及び第２突端部における圧着部を形成するための圧力が、他の領域における圧力、例えば、第３突端部における圧力よりも大幅に小さくなることを抑制することができる。これにより、例えば、第１突端部及び第２突端部における剥離を抑制することができる。   Thereby, for example, the third U-shaped portion formed in the third U-shaped portion that is formed outside in the longitudinal direction and has no leakage-proof groove formed in the width direction, and the first U-shaped portion in which the leakage-proof groove is formed in the width direction at the protruding end portion. And by making it larger than the first area and the second area in the second U-shaped part, for example, the pressure for forming the crimping part at the first projecting end part and the pressure for forming the crimping part at the second projecting end part are increased. The pressure in other regions, for example, the pressure at the third protruding end can be suppressed from becoming significantly smaller. Thereby, for example, peeling at the first protruding end and the second protruding end can be suppressed.

（３） 前記第１接線と前記第１平行線との間に配置される前記第１Ｕ字部及び前記第１突端部の前記幅方向に形成される防漏溝の合計面積である第４面積は、前記第２接線と前記第２平行線との間に配置される前記第２Ｕ字部及び前記第２突端部の前記幅方向に形成される防漏溝の合計面積である第５面積と、略同じである（１）又は（２）に記載の吸収性物品。   (3) The 4th area which is the total area of the leak-proof groove formed in the width direction of the 1st U character part arranged between the 1st tangent and the 1st parallel line, and the 1st tip part. Is a fifth area which is a total area of the leakage preventing grooves formed in the width direction of the second U-shaped portion and the second protruding end portion disposed between the second tangent line and the second parallel line. The absorbent article according to (1) or (2), which is substantially the same.

（３）の発明によれば、吸収性物品は、第１接線と第１平行線との間に配置される第１Ｕ字部及び第１突端部の幅方向に形成される防漏溝の合計面積である第４面積は、第２接線と第２平行線との間に配置される第２Ｕ字部及び第２突端部の幅方向に形成される防漏溝の合計面積である第５面積と、略同じである。これにより、例えば、圧着部を形成する際に加えられる第１突端部の幅方向における圧力と、第２突端部の幅方向における圧力とを略同一にすることができる。   According to the invention of (3), the absorbent article is the total of the leakage preventing grooves formed in the width direction of the first U-shaped portion and the first protruding end portion disposed between the first tangent line and the first parallel line. The fourth area, which is the area, is the fifth area, which is the total area of the leakage prevention grooves formed in the width direction of the second U-shaped portion and the second protruding end portion disposed between the second tangent line and the second parallel line. It is almost the same. Thereby, for example, the pressure in the width direction of the first protruding end portion applied when forming the crimping portion and the pressure in the width direction of the second protruding end portion can be made substantially the same.

（４） 前記第３面積は、前記第４面積及び／又は前記第５面積と略同じである（３）に記載の吸収性物品。   (4) The absorbent article according to (3), wherein the third area is substantially the same as the fourth area and / or the fifth area.

（４）の発明によれば、吸収性物品は、第３面積が、第４面積及び／又は第５面積と略同じである。これにより、圧着部を形成する際に加えられる第３突端部の幅方向における圧力と、第１突端部の幅方向における圧力及び／又は第１突端部の幅方向における圧力とを略同一にすることができる。   According to the invention of (4), the absorbent article has a third area that is substantially the same as the fourth area and / or the fifth area. Thereby, the pressure in the width direction of the third protruding end portion applied when forming the crimping portion and the pressure in the width direction of the first protruding end portion and / or the pressure in the width direction of the first protruding end portion are made substantially the same. be able to.

（５） 少なくとも一部が液透過性の表面シート部と、液不透過性の裏面シート部と、前記表面シート部と前記裏面シート部との間に配置される吸収体部と、前記表面シート部及び前記吸収体部を圧着する圧着部が連続的に形成されてなる１又は複数の防漏溝を有する防漏溝部と、を備える略縦長状の吸収性物品であって、前記防漏溝部は、該吸収性物品の長手方向における所定方向に突出する第１突端部を有すると共に、前記第１突端部の該吸収性物品における幅方向に１又は複数本の防漏溝が形成される略Ｕ字状の第１Ｕ字部と、前記第１Ｕ字部の前記所定方向側に形成され、前記所定方向に突出する第２突端部を有すると共に、前記第２突端部の前記幅方向に前記第１突端部の前記幅方向に形成される前記防漏溝と同じ又は少ない数の防漏溝が形成される略Ｕ字状の第２Ｕ字部と、を備え、前記第１突端部における第１曲率半径は、前記第２突端部における第２曲率半径と同じ又は前記第２曲率半径より小さい吸収性物品。   (5) At least a part of the liquid-permeable top sheet part, a liquid-impermeable back sheet part, the absorber part disposed between the top sheet part and the back sheet part, and the top sheet And a leak-proof groove part having one or a plurality of leak-proof grooves formed by continuously forming a pressure-bonding part that presses the absorbent part and the absorbent body part, the leak-proof groove part Has a first protruding end protruding in a predetermined direction in the longitudinal direction of the absorbent article, and one or more leakage prevention grooves are formed in the width direction of the absorbent article at the first protruding end. A U-shaped first U-shaped portion; a second protruding end portion that is formed on the predetermined direction side of the first U-shaped portion and protrudes in the predetermined direction; and The same or less number of the leakage preventing grooves formed in the width direction of one protruding end A substantially U-shaped second U-shaped part in which a leakage groove is formed, and a first radius of curvature at the first protruding end is the same as a second radius of curvature at the second protruding end or the second radius of curvature Smaller absorbent article.

（５）の発明によれば、吸収性物品は、少なくとも一部が液透過性の表面シート部と、液不透過性の裏面シート部と、表面シート部と裏面シート部との間に配置される吸収体部と、表面シート部及び吸収体部を圧着する圧着部が連続的に形成されてなる１又は複数の防漏溝を有する防漏溝部と、を備える略縦長状の吸収性物品である。防漏溝部は、該吸収性物品の長手方向における所定方向に突出する第１突端部を有すると共に、第１突端部の該吸収性物品における幅方向に１又は複数本の防漏溝が形成される略Ｕ字状の第１Ｕ字部と、第１Ｕ字部の前記所定方向側に形成され、所定方向に突出する第２突端部を有すると共に、第２突端部の幅方向に第１突端部の幅方向に形成される防漏溝と同じ又は少ない数の防漏溝が形成される略Ｕ字状の第２Ｕ字部と、を備える。そして、第１突端部における第１曲率半径は、第２突端部における第２曲率半径と同じ又は第２曲率半径より小さい。   According to the invention of (5), the absorbent article is at least partially disposed between the liquid-permeable top sheet portion, the liquid-impermeable back sheet portion, and the top sheet portion and the back sheet portion. A substantially vertically long absorbent article comprising: an absorbent body part; and a leak-proof groove part having one or a plurality of leak-proof grooves formed by continuously forming a crimping part for crimping the topsheet part and the absorbent part. is there. The leakage preventing groove has a first protruding end protruding in a predetermined direction in the longitudinal direction of the absorbent article, and one or a plurality of leakage preventing grooves are formed in the width direction of the absorbent article at the first protruding end. A substantially U-shaped first U-shaped portion, a second protruding end portion that is formed on the predetermined direction side of the first U-shaped portion and protrudes in a predetermined direction, and has a first protruding end portion in the width direction of the second protruding end portion. The substantially U-shaped 2nd U-shaped part in which the same or a small number of leak-proof grooves are formed in the width direction is provided. And the 1st curvature radius in the 1st tip part is the same as the 2nd curvature radius in the 2nd tip part, or smaller than the 2nd curvature radius.

防漏溝部における第１Ｕ字部と第２Ｕ字部とを、第１突端部における第１曲率半径が、第２突端部における第２曲率半径と同じ又は第２曲率半径より小さくなるように形成することで、例えば、上述した第１面積が第２面積と同じ又は第２面積より小さくなるので、第１突端部における圧着部を形成するための圧力が、他の領域における圧力より小さくなることを抑制できる。例えば、第１突端部における圧力が、第２突端部における圧力よりも大幅に小さくなることを抑制することができる。これにより、例えば、第１突端部における剥離を抑制することができる。   The first U-shaped portion and the second U-shaped portion in the leakage preventing groove are formed so that the first radius of curvature at the first protruding end is the same as or smaller than the second radius of curvature at the second protruding end. Thus, for example, since the first area described above is the same as the second area or smaller than the second area, the pressure for forming the crimping portion at the first protruding end is smaller than the pressure in the other region. Can be suppressed. For example, it can suppress that the pressure in a 1st protrusion part becomes significantly smaller than the pressure in a 2nd protrusion part. Thereby, for example, peeling at the first protruding end can be suppressed.

また、第１Ｕ字部及び第２Ｕ字部は略Ｕ字状に形成されているが、該Ｕ字状とは完全なＵ字に限定されず、Ｖ字や円弧も含む。   Moreover, although the 1st U-shaped part and the 2nd U-shaped part are formed in the substantially U shape, this U shape is not limited to a complete U shape, A V shape and a circular arc are also included.

（６） 前記防漏溝部は、前記第２Ｕ字部の前記所定方向側に形成され、前記所定方向に突出する第３突端部を有すると共に、前記第３突端部の前記幅方向に防漏溝が配置されない略Ｕ字状の第３Ｕ字部と、を備え、前記第３突端部における第３曲率半径は、前記第１曲率半径及び前記第２曲率半径よりも大きい（５）に記載の吸収性物品。   (6) The leak-proof groove portion is formed on the predetermined direction side of the second U-shaped portion, has a third protruding end portion protruding in the predetermined direction, and has a leak-proof groove in the width direction of the third protruding end portion. A third U-shaped portion having a substantially U shape in which the first curvature radius is not disposed, and the third curvature radius at the third protrusion is larger than the first curvature radius and the second curvature radius. Sex goods.

（６）の発明によれば、吸収性物品は、防漏溝部が、第２Ｕ字部の所定方向側に形成され、所定方向に突出する第３突端部を有すると共に、第３突端部の幅方向に防漏溝が配置されない略Ｕ字状の第３Ｕ字部と、を備える。そして、第３突端部における第３曲率半径は、第１曲率半径及び第２曲率半径よりも大きい。   According to the invention of (6), in the absorbent article, the leakage preventing groove portion is formed on the predetermined direction side of the second U-shaped portion, has the third protruding end portion protruding in the predetermined direction, and the width of the third protruding end portion. A substantially U-shaped third U-shaped portion in which no leak-proof groove is arranged in the direction. And the 3rd curvature radius in the 3rd tip part is larger than the 1st curvature radius and the 2nd curvature radius.

これにより、例えば、長手方向における外側に形成され幅方向に防漏溝が形成されていない第３Ｕ字部における第３曲率半径を、突端部における幅方向に防漏溝が形成される第１Ｕ字部及び第２Ｕ字部における第１曲率半径及び第２曲率半径よりも大きくすることで、例えば、第１突端部における圧着部を形成するための圧力及び第２突端部における圧着部を形成するための圧力が、他の領域における圧力、例えば、第３突端部における圧力よりも大幅に小さくなることを抑制することができる。これにより、例えば、第１突端部及び第２突端部における剥離を抑制することができる。   Thereby, for example, the third curvature radius in the third U-shaped part formed outside on the longitudinal direction and not formed with the leak-proof groove in the width direction, and the first U-character formed with the leak-proof groove in the width direction on the protruding end part. For example, the pressure for forming the pressure-bonding portion at the first protruding end and the pressure-bonding portion at the second protruding end are formed by making the first and second curvature radii larger than the first and second U-shaped portions. Can be suppressed from becoming significantly smaller than the pressure in other regions, for example, the pressure at the third protrusion. Thereby, for example, peeling at the first protruding end and the second protruding end can be suppressed.

（７） 前記曲率半径のそれぞれは、前記Ｕ字部のそれぞれにおける前記所定方向とは反対の方向側の内周部における曲率半径である（５）又は（６）に記載の吸収性物品。   (7) The absorbent article according to (5) or (6), wherein each of the curvature radii is a curvature radius in an inner peripheral portion on a direction opposite to the predetermined direction in each of the U-shaped portions.

（７）の発明によれば、吸収性物品は、曲率半径のそれぞれが、Ｕ字部のそれぞれにおける所定方向とは反対の方向側の内周部における曲率半径である。   According to invention of (7), as for an absorbent article, each of a curvature radius is a curvature radius in the inner peripheral part on the direction side opposite to the predetermined direction in each of a U-shaped part.

（８） 少なくとも一部が液透過性の表面シート部と、液不透過性の裏面シート部と、前記表面シート部と前記裏面シート部との間に配置される吸収体部と、前記表面シート部及び前記吸収体部を圧着する圧着部が連続的に形成されてなる１又は複数の防漏溝を有する防漏溝部と、を備える略縦長状の吸収性物品であって、前記防漏溝部は、該吸収性物品の長手方向における所定方向に突出する第１突端部を有すると共に、前記第１突端部の該吸収性物品における幅方向に１又は複数本の防漏溝が形成される略Ｕ字状の第１Ｕ字部と、前記第１Ｕ字部の前記所定方向側に形成され、前記所定方向に突出する第２突端部を有すると共に、前記第２突端部の前記幅方向に前記第１突端部の前記幅方向に形成される前記防漏溝と同じ又は少ない数の防漏溝が形成される略Ｕ字状の第２Ｕ字部と、を備え、前記第１突端部における前記所定方向側の外周部に接する第１接線と、前記第１接線に平行で前記第１接線から前記所定方向とは反対の方向に所定距離だけ離間する第１平行線との間に配置される前記第１Ｕ字部を形成する圧着部の面積である第１圧着部面積は、前記第２突端部における前記所定方向側の外周部に接する第２接線と、前記第２接線に平行で前記第２接線から前記所定方向とは反対の方向に前記所定距離だけ離間する第２平行線との間に配置される前記第２Ｕ字部を形成する圧着部の面積である第２圧着部面積と同じ又は第２圧着部面積よりも小さい吸収性物品。   (8) At least part of the surface sheet portion that is liquid-permeable, the liquid-impermeable back surface sheet portion, the absorber portion disposed between the surface sheet portion and the back surface sheet portion, and the surface sheet And a leak-proof groove part having one or a plurality of leak-proof grooves formed by continuously forming a pressure-bonding part that presses the absorbent part and the absorbent body part, the leak-proof groove part Has a first protruding end protruding in a predetermined direction in the longitudinal direction of the absorbent article, and one or more leakage prevention grooves are formed in the width direction of the absorbent article at the first protruding end. A U-shaped first U-shaped portion; a second protruding end portion that is formed on the predetermined direction side of the first U-shaped portion and protrudes in the predetermined direction; and The same or less number of the leakage preventing grooves formed in the width direction of one protruding end A substantially U-shaped second U-shaped portion in which a leakage groove is formed, and a first tangent that is in contact with the outer peripheral portion on the predetermined direction side of the first protruding end, and the first tangent that is parallel to the first tangent The area of the first crimping part that is the area of the crimping part that forms the first U-shaped part that is disposed between the first parallel line that is separated from the tangential line in a direction opposite to the predetermined direction by a predetermined distance is: A second tangent line that is in contact with the outer peripheral portion on the predetermined direction side at the two projecting ends, and a second parallel line that is parallel to the second tangent line and spaced apart from the second tangent line by a predetermined distance in a direction opposite to the predetermined direction. An absorbent article that is the same as or smaller than the second pressure-bonding portion area that is the area of the pressure-bonding portion that forms the second U-shaped portion disposed between the two.

（８）の発明によれば、吸収性物品は、少なくとも一部が液透過性の表面シート部と、液不透過性の裏面シート部と、表面シート部と前記裏面シート部との間に配置される吸収体部と、表面シート部及び吸収体部を圧着する圧着部が連続的に形成されてなる１又は複数の防漏溝を有する防漏溝部と、を備える略縦長状の吸収性物品である。防漏溝部は、該吸収性物品の長手方向における所定方向に突出する第１突端部を有すると共に第１突端部の該吸収性物品における幅方向に１又は複数本の防漏溝が形成される略Ｕ字状の第１Ｕ字部と、第１Ｕ字部の所定方向側に形成され所定方向に突出する第２突端部を有すると共に第２突端部の幅方向に第１突端部の幅方向に形成される防漏溝と同じ又は少ない数の防漏溝が形成される略Ｕ字状の第２Ｕ字部と、を備える。そして、第１突端部における所定方向側の外周部に接する第１接線と、第１接線に平行で第１接線から所定方向とは反対の方向に所定距離だけ離間する第１平行線との間に配置される第１Ｕ字部を形成する圧着部の面積である第１圧着部面積は、第２突端部における所定方向側の外周部に接する第２接線と、第２接線に平行で前記第２接線から所定方向とは反対の方向に所定距離だけ離間する第２平行線との間に配置される第２Ｕ字部を形成する圧着部の面積である第２圧着部面積と同じ又は第２圧着部面積よりも小さい。   According to the invention of (8), the absorbent article is disposed at least partially between a liquid-permeable top sheet portion, a liquid-impermeable back sheet portion, and the top sheet portion and the back sheet portion. Absorbent article having a longitudinally long absorbent article, and a leak-proof groove part having one or a plurality of leak-proof grooves formed by continuously forming a pressure-bonding part for pressure-bonding the surface sheet part and the absorber part It is. The leakage preventing groove has a first protruding end protruding in a predetermined direction in the longitudinal direction of the absorbent article, and one or more leakage preventing grooves are formed in the width direction of the absorbent article at the first protruding end. It has a substantially U-shaped first U-shaped portion, a second protruding end portion that is formed on a predetermined direction side of the first U-shaped portion and protrudes in a predetermined direction, and extends in the width direction of the second protruding end portion in the width direction of the first protruding end portion. A substantially U-shaped second U-shaped portion in which the same or a small number of leakage-proof grooves are formed. And between the 1st tangent which touches the peripheral part by the side of the predetermined direction in the 1st tip and the 1st parallel line which is parallel to the 1st tangent and is separated from the 1st tangent in the direction opposite to the predetermined direction by a predetermined distance The area of the first crimping part, which is the area of the crimping part that forms the first U-shaped part disposed on the second tangent line, is a second tangent line that is in contact with the outer peripheral part on the predetermined direction side of the second projecting end part, and the second tangent line is parallel to the second tangent line. Same or second area as the second pressure-bonding area, which is the area of the pressure-bonding part that forms the second U-shaped part disposed between the second tangent line and the second parallel line that is separated by a predetermined distance in a direction opposite to the predetermined direction. It is smaller than the crimping area.

防漏溝部における第１Ｕ字部と第２Ｕ字部とを、第１突端部における所定方向側の外周部に接する第１接線と、第１接線に平行で第１接線から所定方向とは反対の方向に所定距離だけ離間する第１平行線との間に配置される第１Ｕ字部を形成する圧着部の面積である第１圧着部面積が、第２突端部における所定方向側の外周部に接する第２接線と、第２接線に平行で前記第２接線から所定方向とは反対の方向に所定距離だけ離間する第２平行線との間に配置される第２Ｕ字部を形成する圧着部の面積である第２圧着部面積と同じ又は第２圧着部面積よりも小さくなるように形成することで、第１突端部における圧着部を形成するための圧力が、他の領域における圧力、例えば、第２突端部における圧着部を形成するための圧力よりも大幅に小さくなることを抑制することができる。これにより、例えば、第１突端部の圧着部における剥離を抑制することができる。   The first U-shaped portion and the second U-shaped portion in the leakage preventing groove portion are connected to the first tangent line that is in contact with the outer peripheral portion on the predetermined direction side of the first protruding end portion, and is parallel to the first tangent line and opposite to the predetermined direction from the first tangent line. The first crimping part area, which is the area of the crimping part that forms the first U-shaped part arranged between the first parallel lines that are separated by a predetermined distance in the direction, is on the outer peripheral part on the predetermined direction side of the second protruding end part. A crimping portion that forms a second U-shaped portion that is disposed between a second tangent that is in contact with and a second parallel line that is parallel to the second tangent and is separated from the second tangent by a predetermined distance in a direction opposite to the predetermined direction. The pressure for forming the pressure-bonding portion at the first protruding end portion is the pressure in the other region, for example, by forming the pressure-bonding portion so as to be equal to or smaller than the area of the second pressure-bonding portion, which is the area of , Much smaller than the pressure to form the crimping part at the second tip It is possible to suppress the Kunar. Thereby, for example, peeling at the crimping portion of the first protruding end portion can be suppressed.

第１圧着部面積や第２圧着部面積を調整するには、例えば、上述のＵ字部の突端部における曲率半径を調整することに加え、圧着部の幅方向における長さ（幅）や、長手方向における長さ（高さ）を調整することを例示できる。ここで、突端部における接線から所定距離だけ離間する平行線は、例えば、突端部における長手方向の内周部と接する平行線であることが好ましい。   To adjust the area of the first crimping part and the second crimping part, for example, in addition to adjusting the radius of curvature at the protruding end of the U-shaped part, the length (width) in the width direction of the crimping part, It can be exemplified that the length (height) in the longitudinal direction is adjusted. Here, the parallel lines that are separated from the tangent line at the projecting end portion by a predetermined distance are preferably, for example, parallel lines that are in contact with the inner peripheral portion of the projecting end portion in the longitudinal direction.

また、第１Ｕ字部及び第２Ｕ字部は略Ｕ字状に形成されているが、該Ｕ字状とは完全なＵ字に限定されず、Ｖ字や円弧も含む。   Moreover, although the 1st U-shaped part and the 2nd U-shaped part are formed in the substantially U shape, this U shape is not limited to a complete U shape, A V shape and a circular arc are also included.

（９） 前記第１接線と前記第１平行線との間に配置される前記第１Ｕ字部を形成する圧着部の前記幅方向における第１圧着部幅が、前記第２接線と前記第２平行線との間に配置される前記第２Ｕ字部を形成する圧着部の前記幅方向における第２圧着部幅と同じ又は前記第２圧着部幅より狭い（８）に記載の吸収性物品。   (9) The first crimping portion width in the width direction of the crimping portion forming the first U-shaped portion disposed between the first tangent and the first parallel line is the second tangent and the second The absorbent article according to (8), which is the same as or narrower than the second pressure-bonding portion width in the width direction of the pressure-bonding portion that forms the second U-shaped portion arranged between the parallel lines.

（９）の発明によれば、吸収性物品は、第１接線と第１平行線との間に配置される第１Ｕ字部を形成する圧着部の幅方向における第１圧着部幅が、第２接線と第２平行線との間に配置される第２Ｕ字部を形成する圧着部の幅方向における第２圧着部幅と同じ又は前記第２圧着部幅より狭い。これにより、第１圧着部面積を好適に第２圧着部面積と同じ又は第２圧着部面積よりも小さくすることができる。   According to the invention of (9), in the absorbent article, the first crimping portion width in the width direction of the crimping portion forming the first U-shaped portion disposed between the first tangent and the first parallel line is the first It is the same as the 2nd crimping | compression-bonding part width in the width direction of the crimping | compression-bonding part which forms the 2nd U-shaped part arrange | positioned between 2 tangents and a 2nd parallel line, or is narrower than the said 2nd crimping | compression-bonding part width. Thereby, a 1st crimping | compression-bonding part area can be suitably made smaller than the 2nd crimping | compression-bonding part area as the 2nd crimping | compression-bonding area.

（１０） 前記防漏溝部は、前記第２Ｕ字部の前記所定方向側に形成され、前記所定方向に突出する第３突端部を有すると共に、前記第３突端部の前記幅方向に防漏溝が配置されない略Ｕ字状の第３Ｕ字部と、を備え、前記第３突端部における前記所定方向側の外周部に接する第３接線と、前記第３接線に平行で前記第３接線から前記所定方向とは反対側に前記所定距離だけ離間する第３平行線との間に配置される前記第３Ｕ字部を形成する圧着部の面積である第３圧着部面積は、前記第１圧着部面積及び前記第２圧着部面積よりも大きい（８）に記載の吸収性物品。   (10) The leak-proof groove portion is formed on the predetermined direction side of the second U-shaped portion, has a third protruding end portion protruding in the predetermined direction, and has a leakage-proof groove in the width direction of the third protruding end portion. A third U-shaped portion that is substantially U-shaped, not disposed, a third tangent that contacts the outer peripheral portion on the predetermined direction side of the third protruding end, and the third tangent that is parallel to the third tangent and from the third tangent A third crimping portion area, which is an area of the crimping portion that forms the third U-shaped portion disposed between the third parallel lines that are separated from the predetermined direction by the predetermined distance, is the first crimping portion. The absorbent article as described in (8) larger than an area and said 2nd crimping | compression-bonding part area.

（１０）の発明によれば、吸収性物品は、防漏溝部が、第２Ｕ字部の所定方向側に形成され、所定方向に突出する第３突端部を有すると共に第３突端部の幅方向に防漏溝が配置されない略Ｕ字状の第３Ｕ字部と、を備え、第３突端部における所定方向側の外周部に接する第３接線と、第３接線に平行で第３接線から所定方向とは反対側に所定距離だけ離間する第３平行線との間に配置される第３Ｕ字部を形成する圧着部の面積である第３圧着部面積は、第１圧着部面積及び第２圧着部面積よりも大きい。これにより、例えば、長手方向における外側に形成され幅方向に防漏溝が形成されていない第３Ｕ字部における第３圧着部面積を、突端部における幅方向に防漏溝が形成される第１Ｕ字部及び第２Ｕ字部における第１圧着部面積及び第２圧着部面積よりも大きくすることで、例えば、第１突端部における圧着部を形成するための圧力及び第２突端部における圧着部を形成するための圧力が、他の領域における圧力、例えば、第３突端部における圧着部を形成する圧力よりも大幅に小さくなることを抑制することができる。これにより、例えば、第１突端部及び第２突端部における圧着部の剥離を抑制することができる。   According to the invention of (10), in the absorbent article, the leakage preventing groove portion is formed on the second U-shaped portion in the predetermined direction side and has the third protruding end portion protruding in the predetermined direction and the width direction of the third protruding end portion. A substantially U-shaped third U-shaped portion in which no leakage-proof groove is disposed, and a third tangent that is in contact with the outer peripheral portion on the predetermined direction side of the third protruding end, and a predetermined value from the third tangent that is parallel to the third tangent. The third crimping portion area, which is the area of the crimping portion that forms the third U-shaped portion disposed between the third parallel lines separated by a predetermined distance on the side opposite to the direction, is the first crimping portion area and the second crimping portion area. It is larger than the crimping area. Thereby, for example, the third crimping portion area in the third U-shaped portion formed outside in the longitudinal direction and not formed with the leakage prevention groove in the width direction is used, and the first U in which the leakage prevention groove is formed in the width direction in the protruding end portion. By making the area of the first crimping part and the second crimping part in the character part and the second U-shaped part larger, for example, the pressure for forming the crimping part in the first projecting end part and the crimping part in the second projecting end part are reduced. It can suppress that the pressure for forming becomes significantly smaller than the pressure in another area | region, for example, the pressure which forms the crimping | compression-bonding part in a 3rd protrusion part. Thereby, for example, it is possible to suppress peeling of the crimping portion at the first protruding end portion and the second protruding end portion.

（１１） 前記第３接線と前記第３平行線との間に配置される前記第３Ｕ字部を形成する圧着部の前記幅方向における第３圧着部幅が、前記第１圧着部幅及び／又は前記第２圧着部幅よりも広い（１０）に記載の吸収性物品。   (11) The third pressure-bonding portion width in the width direction of the pressure-bonding portion forming the third U-shaped portion disposed between the third tangent line and the third parallel line is the first pressure-bonding portion width and / or Or the absorbent article as described in (10) wider than the said 2nd crimping | compression-bonding part width | variety.

（１１）の発明によれば、吸収性物品は、第３接線と第３平行線との間に配置される第３Ｕ字部を形成する圧着部の幅方向における第３圧着部幅が、第１圧着部幅及び／又は第２圧着部幅よりも広い。これにより、第３圧着部面積を好適に第１圧着部面積及び／又は第２圧着部面積よりも大きくすることができる。   According to the invention of (11), the absorbent article has a third pressure-bonding portion width in the width direction of the pressure-bonding portion that forms the third U-shaped portion disposed between the third tangent line and the third parallel line. It is wider than the width of the first crimping part and / or the second crimping part. Thereby, a 3rd crimping | compression-bonding part area can be suitably made larger than a 1st crimping | compression-bonding part area and / or a 2nd crimping | compression-bonding part area.

（１２） 少なくとも一部が液透過性の表面シート部と、液不透過性の裏面シート部と、前記表面シート部と前記裏面シート部との間に配置される吸収体部と、前記表面シート部及び前記吸収体部を圧着する圧着部が連続的に形成されてなる１又は複数の防漏溝を有する防漏溝部と、を備える略縦長状の吸収性物品であって、前記防漏溝部は、該吸収性物品の長手方向における所定方向に突出する第１突端部を有すると共に、前記第１突端部の該吸収性物品における幅方向に１又は複数本の防漏溝が形成される略Ｕ字状の第１Ｕ字部と、前記第１Ｕ字部の前記所定方向側に形成され、前記所定方向に突出する第２突端部を有すると共に、前記第２突端部の前記幅方向に前記第１突端部の前記幅方向に形成される前記防漏溝と同じ又は少ない数の防漏溝が形成される略Ｕ字状の第２Ｕ字部と、を備え、前記第１突端部における前記所定方向側の外周部に接する第１接線と、前記第１接線に平行で前記所定方向とは反対側の内周部に接する第４接線との中間である第１中間線における前記第１Ｕ字部と交差する第１交差部の第１長さは、前記第２突端部における前記所定方向側の外周部に接する第２接線と、前記第２接線に平行で前記所定方向とは反対側の内周部に接する第５接線との中間である第２中間線における前記第２Ｕ字部と交差する第２交差部の第２長さと同じ又は第２長さよりも短い吸収性物品。   (12) At least a part of the liquid-permeable top sheet part, a liquid-impermeable back sheet part, an absorber part disposed between the top sheet part and the back sheet part, and the top sheet And a leak-proof groove part having one or a plurality of leak-proof grooves formed by continuously forming a pressure-bonding part that presses the absorbent part and the absorbent body part, the leak-proof groove part Has a first protruding end protruding in a predetermined direction in the longitudinal direction of the absorbent article, and one or more leakage prevention grooves are formed in the width direction of the absorbent article at the first protruding end. A U-shaped first U-shaped portion; a second protruding end portion that is formed on the predetermined direction side of the first U-shaped portion and protrudes in the predetermined direction; and The same or less number of leak-proof grooves formed in the width direction of one protruding end A substantially U-shaped second U-shaped portion in which a leak-proof groove is formed, a first tangent in contact with an outer peripheral portion on the predetermined direction side of the first protruding end, and the predetermined tangent parallel to the first tangent The first length of the first intersecting portion that intersects the first U-shaped portion in the first intermediate line that is in the middle of the fourth tangent that is in contact with the inner peripheral portion on the opposite side of the direction is the first length at the second protruding end portion. The second U-shaped second intermediate line that is intermediate between the second tangent line that contacts the outer peripheral part on the predetermined direction side and the fifth tangent line that is parallel to the second tangent line and contacts the inner peripheral part on the opposite side to the predetermined direction. The absorbent article which is the same as the 2nd length of the 2nd intersection part which cross | intersects a part, or is shorter than 2nd length.

（１２）の発明によれば、吸収性物品は、少なくとも一部が液透過性の表面シート部と、液不透過性の裏面シート部と、表面シート部と前記裏面シート部との間に配置される吸収体部と、表面シート部及び吸収体部を圧着する圧着部が連続的に形成されてなる１又は複数の防漏溝を有する防漏溝部と、を備える略縦長状の吸収性物品である。防漏溝部は、該吸収性物品の長手方向における所定方向に突出する第１突端部を有すると共に第１突端部の該吸収性物品における幅方向に１又は複数本の防漏溝が形成される略Ｕ字状の第１Ｕ字部と、第１Ｕ字部の所定方向側に形成され所定方向に突出する第２突端部を有すると共に第２突端部の幅方向に第１突端部の幅方向に形成される防漏溝と同じ又は少ない数の防漏溝が形成される略Ｕ字状の第２Ｕ字部と、を備える。そして、第１突端部における所定方向側の外周部に接する第１接線と、第１接線に平行で所定方向とは反対側の内周部に接する第４接線との中間である第１中間線における第１Ｕ字部と交差する第１交差部の第１長さは、第２突端部における所定方向側の外周部に接する第２接線と、第２接線に平行で前記所定方向とは反対側の内周部に接する第５接線との中間である第２中間線における第２Ｕ字部と交差する第２交差部の第２長さと同じ又は第２長さよりも短い。   According to the invention of (12), the absorbent article is disposed at least partially between the liquid-permeable top sheet portion, the liquid-impermeable back sheet portion, and the top sheet portion and the back sheet portion. Absorbent article having a longitudinally long absorbent article, and a leak-proof groove part having one or a plurality of leak-proof grooves formed by continuously forming a pressure-bonding part for pressure-bonding the surface sheet part and the absorber part It is. The leakage preventing groove has a first protruding end protruding in a predetermined direction in the longitudinal direction of the absorbent article, and one or more leakage preventing grooves are formed in the width direction of the absorbent article at the first protruding end. It has a substantially U-shaped first U-shaped portion, a second protruding end portion that is formed on a predetermined direction side of the first U-shaped portion and protrudes in a predetermined direction, and extends in the width direction of the second protruding end portion in the width direction of the first protruding end portion. A substantially U-shaped second U-shaped portion in which the same or a small number of leakage-proof grooves are formed. And the 1st intermediate line which is the middle of the 1st tangent line which touches the perimeter part by the side of a predetermined direction in the 1st tip and the 4th tangent line which is parallel to the 1st tangent line and touches the inner circumference part on the opposite side to a predetermined direction The first length of the first intersecting portion that intersects the first U-shaped portion is a second tangent that is in contact with the outer peripheral portion on the predetermined direction side at the second protruding end, and is parallel to the second tangent and opposite to the predetermined direction. It is the same as the 2nd length of the 2nd intersection part which cross | intersects the 2nd U-shaped part in the 2nd intermediate line which is an intermediate | middle with the 5th tangent which touches the inner peripheral part, or is shorter than 2nd length.

防漏溝部における第１Ｕ字部と第２Ｕ字部とを、第１突端部における所定方向側の外周部に接する第１接線と、第１接線に平行で所定方向とは反対側の内周部に接する第４接線との中間である第１中間線における第１Ｕ字部と交差する第１交差部の第１長さが、第２突端部における所定方向側の外周部に接する第２接線と、第２接線に平行で前記所定方向とは反対側の内周部に接する第５接線との中間である第２中間線における第２Ｕ字部と交差する第２交差部の第２長さと同じ又は第２長さよりも短くなるように形成することで、第１突端部における圧着部を形成するための圧力が、他の領域における圧力、例えば、第２突端部における圧力よりも大幅に小さくなることを抑制することができる。これにより、例えば、第１突端部における剥離を抑制することができる。   The first U-shaped portion and the second U-shaped portion in the leak-proof groove portion, the first tangent line in contact with the outer peripheral portion on the predetermined direction side in the first protruding end portion, and the inner peripheral portion parallel to the first tangent line and opposite to the predetermined direction The first length of the first intersecting portion that intersects the first U-shaped portion in the first intermediate line that is in the middle of the fourth tangent that is in contact with the second tangent, Same as the second length of the second intersecting portion that intersects the second U-shaped portion in the second intermediate line that is in the middle of the fifth tangent that is parallel to the second tangent and is in contact with the inner peripheral portion opposite to the predetermined direction. Alternatively, by forming it so as to be shorter than the second length, the pressure for forming the crimped portion at the first protruding end is significantly smaller than the pressure in other regions, for example, the pressure at the second protruding end. This can be suppressed. Thereby, for example, peeling at the first protruding end can be suppressed.

第１長さや第２長さを調整するには、例えば、後述するＵ字部の突端部における曲率半径を調整すること等を例示できる。   In order to adjust the first length and the second length, for example, adjustment of the radius of curvature at the protruding end of the U-shaped portion described later can be exemplified.

また、第１Ｕ字部及び第２Ｕ字部は略Ｕ字状に形成されているが、該Ｕ字状とは完全なＵ字に限定されず、Ｖ字や円弧も含む。   Moreover, although the 1st U-shaped part and the 2nd U-shaped part are formed in the substantially U shape, this U shape is not limited to a complete U shape, A V shape and a circular arc are also included.

（１３） 前記防漏溝部は、前記第２Ｕ字部の前記所定方向側に形成され、前記所定方向に突出する第３突端部を有すると共に、前記第３突端部の前記幅方向に防漏溝が配置されない略Ｕ字状の第３Ｕ字部と、を備え、前記第３突端部における前記所定方向側の外周部に接する第３接線と、前記第３接線に平行で前記所定方向とは反対側の内周部に接する第５接線との中間である第３中間線における前記第３Ｕ字部と交差する第３交差部の第３長さは、前記第１長さ及び前記第２長さよりも長い（１２）に記載の吸収性物品。   (13) The leakage prevention groove portion is formed on the predetermined direction side of the second U-shaped portion, has a third protrusion end portion protruding in the predetermined direction, and has a leakage prevention groove in the width direction of the third protrusion end portion. A third U-shaped portion that is substantially U-shaped and is not disposed, and a third tangent that is in contact with the outer peripheral portion on the predetermined direction side of the third protruding end, and is parallel to the third tangent and opposite to the predetermined direction The third length of the third intersecting portion that intersects the third U-shaped portion in the third intermediate line that is intermediate between the fifth tangent that is in contact with the inner peripheral portion on the side is greater than the first length and the second length. The absorbent article according to (12), which is also long.

（１３）の発明によれば、吸収性物品は、防漏溝部が、第２Ｕ字部の所定方向側に形成され、所定方向に突出する第３突端部を有すると共に第３突端部の幅方向に防漏溝が配置されない略Ｕ字状の第３Ｕ字部と、を備える。そして、第３突端部における所定方向側の外周部に接する第３接線と、第３接線に平行で所定方向とは反対側の内周部に接する第５接線との中間である第３中間線における第３Ｕ字部と交差する第３交差部の第３長さは、第１長さ及び第２長さよりも長い。   According to the invention of (13), in the absorbent article, the leakage preventing groove portion is formed on the second U-shaped portion in the predetermined direction side and has the third protruding end portion protruding in the predetermined direction and the width direction of the third protruding end portion. A substantially U-shaped third U-shaped portion in which no leak-proof groove is disposed. A third intermediate line that is intermediate between the third tangent line that contacts the outer peripheral part on the predetermined direction side at the third protrusion and the fifth tangent line that is parallel to the third tangent line and contacts the inner peripheral part on the opposite side of the predetermined direction. The third length of the third intersecting portion that intersects the third U-shaped portion is longer than the first length and the second length.

これにより、例えば、長手方向における外側に形成され幅方向に防漏溝が形成されていない第３Ｕ字部における第３長さを、突端部における幅方向に防漏溝が形成される第１Ｕ字部及び第２Ｕ字部における第１長さ及び第２長さよりも長くすることで、例えば、第１突端部における圧着部を形成するための圧力及び第２突端部における圧着部を形成するための圧力が、他の領域における圧力、例えば、第３突端部における圧力よりも大幅に小さくなることを抑制することができる。これにより、例えば、第１突端部及び第２突端部における剥離を抑制することができる。   Accordingly, for example, the third length in the third U-shaped portion that is formed on the outer side in the longitudinal direction and does not have the leak-proof groove formed in the width direction is the first U-shape in which the leak-proof groove is formed in the width direction in the protruding end portion. For example, the pressure for forming the pressure-bonding portion at the first protruding end and the pressure-bonding portion at the second protruding end are made longer than the first length and the second length of the first and second U-shaped portions. It is possible to suppress the pressure from becoming significantly smaller than the pressure in other regions, for example, the pressure at the third protrusion. Thereby, for example, peeling at the first protruding end and the second protruding end can be suppressed.

（１４） 前記第１中間線における前記第１Ｕ字部及び前記第１突端部の前記幅方向に形成される防漏溝と交差する複数の交差部におけるそれぞれの長さの合計長さである第４長さは、前記第２中間線における前記第２Ｕ字部及び前記第２突端部の前記幅方向に形成される防漏溝と交差する複数の交差部におけるそれぞれの長さの合計長さである第５長さと、略同じ長さである（１２）又は（１３）に記載の吸収性物品。   (14) The total length of the lengths of the first U-shaped portion in the first intermediate line and the plurality of intersecting portions that intersect with the leakage preventing grooves formed in the width direction of the first protruding end portion. 4 length is the total length of each length in a plurality of intersecting portions intersecting the leakage preventing grooves formed in the width direction of the second U-shaped portion and the second protruding end portion in the second intermediate line. The absorbent article according to (12) or (13), which is substantially the same length as a certain fifth length.

（１４）の発明によれば、吸収性物品は、第１中間線における第１Ｕ字部及び第１突端部の幅方向に形成される防漏溝と交差する複数の交差部におけるそれぞれの長さの合計長さである第４長さは、第２中間線における第２Ｕ字部及び第２突端部の幅方向に形成される防漏溝と交差する複数の交差部におけるそれぞれの長さの合計長さである第５長さと、略同じ長さである。これにより、例えば、圧着部を形成する際に加えられる第１突端部の幅方向における圧力と、第２突端部の幅方向における圧力とを略同一にすることができる。   According to the invention of (14), the absorbent article has respective lengths at the plurality of intersecting portions intersecting the leakage preventing grooves formed in the width direction of the first U-shaped portion and the first protruding end portion in the first intermediate line. The total length of the fourth length is the sum of the lengths of the plurality of intersecting portions intersecting the leakage preventing grooves formed in the width direction of the second U-shaped portion and the second protruding end portion of the second intermediate line. The fifth length, which is the length, is substantially the same length. Thereby, for example, the pressure in the width direction of the first protruding end portion applied when forming the crimping portion and the pressure in the width direction of the second protruding end portion can be made substantially the same.

（１５） 前記第３長さは、前記第４長さ及び／又は前記第５長さと略同じで長さである（１４）に記載の吸収性物品。   (15) The absorbent article according to (14), wherein the third length is substantially the same as the fourth length and / or the fifth length.

（１５）の発明によれば、吸収性物品は、第３長さが、第４長さ及び／又は第５長さと略同じである。これにより、圧着部を形成する際に加えられる第３突端部の幅方向における圧力と、第１突端部の幅方向における圧力及び／又は第１突端部の幅方向における圧力とを略同一にすることができる。   According to the invention of (15), the absorbent article has a third length that is substantially the same as the fourth length and / or the fifth length. Thereby, the pressure in the width direction of the third protruding end portion applied when forming the crimping portion and the pressure in the width direction of the first protruding end portion and / or the pressure in the width direction of the first protruding end portion are made substantially the same. be able to.

本発明によれば、防漏溝における剥離が抑制された吸収性物品を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the absorbent article by which peeling in the leak-proof groove was suppressed can be provided.

本発明の第１実施形態における吸収性物品の平面図である。It is a top view of the absorptive article in a 1st embodiment of the present invention. 本発明の第１実施形態における吸収性物品の使用状態における斜視図である。It is a perspective view in the use condition of the absorptive article in a 1st embodiment of the present invention. 本発明の第１実施形態における吸収性物品のＸ―Ｘ´断面図である。It is XX 'sectional drawing of the absorbent article in 1st Embodiment of this invention. 本発明の第２実施形態における吸収性物品の平面図である。It is a top view of the absorptive article in a 2nd embodiment of the present invention. 本発明の第３実施形態における吸収性物品の平面図である。It is a top view of the absorptive article in a 3rd embodiment of the present invention. 本発明の第４実施形態における吸収性物品の平面図である。It is a top view of an absorptive article in a 4th embodiment of the present invention. 本発明の第５実施形態における吸収性物品の平面図である。It is a top view of an absorptive article in a 5th embodiment of the present invention. 本発明の第６実施形態における吸収性物品の平面図である。It is a top view of an absorptive article in a 6th embodiment of the present invention. 本発明の第７実施形態における吸収性物品の平面図である。It is a top view of an absorptive article in a 7th embodiment of the present invention. 本発明の第８実施形態における吸収性物品の平面図である。It is a top view of an absorptive article in an 8th embodiment of the present invention. 本発明の第９実施形態における吸収性物品の平面図である。It is a top view of an absorptive article in a 9th embodiment of the present invention. 比較形態における吸収性物品の平面図である。It is a top view of the absorptive article in a comparison form. 表面シート部と吸収体部とを圧着処理した際における弾力等の発生状態を示す図である。It is a figure which shows the generation | occurrence | production state of elasticity etc. at the time of crimping | bonding a surface sheet part and an absorber part. 圧着部の断面を拡大した図である。It is the figure which expanded the cross section of the crimping | compression-bonding part. 本発明の吸収性物品における圧着処理工程を示す図及び圧着処理工程で形成された吸収性物品を圧着処理された側から見た図である。It is the figure which showed the crimping process process in the absorbent article of this invention, and the figure which looked at the absorbent article formed at the crimping process process from the side by which the crimping process was carried out. 図４における領域Ａを拡大した図である。It is the figure which expanded the area | region A in FIG.

図１は、本発明の第１実施形態における吸収性物品の平面図である。図２は、本発明の第１実施形態における吸収性物品の使用状態における斜視図である。図３は、本発明の第１実施形態における吸収性物品における図１のＸ―Ｘ´断面図である。図４は、本発明の第２実施形態における吸収性物品の平面図である。図５は、本発明の第３実施形態における吸収性物品の平面図である。図６は、本発明の第４実施形態における吸収性物品の平面図である。図７は、本発明の第５実施形態における吸収性物品の平面図である。図８は、本発明の第６実施形態における吸収性物品の平面図である。図９は、本発明の第７実施形態における吸収性物品の平面図である。図１０は、本発明の第８実施形態における吸収性物品の平面図である。図１１は、本発明の第９実施形態における吸収性物品の平面図である。図１２は、比較形態における吸収性物品の平面図である。図１３（ａ）から（ｄ）は、表面シート部と吸収体部とを圧着処理した際における弾力等の発生状態を示す図である。図１４（ａ）及び（ｂ）は、圧着部の断面を拡大した図である。図１５（ａ）は、本発明の吸収性物品における圧着処理工程を示す図であり、図１５（ｂ）は、圧着処理工程で形成された吸収性物品を圧着処理された側から見た図である。図１６は、図４における領域Ａを拡大した図である。   FIG. 1 is a plan view of an absorbent article according to the first embodiment of the present invention. FIG. 2 is a perspective view of the absorbent article in use according to the first embodiment of the present invention. 3 is a cross-sectional view taken along the line XX ′ of FIG. 1 in the absorbent article according to the first embodiment of the present invention. FIG. 4 is a plan view of an absorbent article according to the second embodiment of the present invention. FIG. 5 is a plan view of an absorbent article according to the third embodiment of the present invention. FIG. 6 is a plan view of an absorbent article according to the fourth embodiment of the present invention. FIG. 7 is a plan view of an absorbent article according to the fifth embodiment of the present invention. FIG. 8 is a plan view of an absorbent article according to the sixth embodiment of the present invention. FIG. 9 is a plan view of an absorbent article according to the seventh embodiment of the present invention. FIG. 10 is a plan view of an absorbent article according to the eighth embodiment of the present invention. FIG. 11 is a plan view of an absorbent article according to the ninth embodiment of the present invention. FIG. 12 is a plan view of an absorbent article in a comparative form. FIGS. 13A to 13D are views showing a state of generation of elasticity and the like when the top sheet portion and the absorber portion are subjected to a pressure-bonding process. FIGS. 14A and 14B are enlarged views of the cross section of the crimping portion. Fig.15 (a) is a figure which shows the crimping | compression-bonding process in the absorbent article of this invention, FIG.15 (b) is the figure which looked at the absorbent article formed at the crimping | compression-bonding process from the side by which the crimping process was carried out. It is. FIG. 16 is an enlarged view of region A in FIG.

［１］吸収性物品の全体構造
本発明の第１実施形態における吸収性物品１により、本発明の吸収性物品における全体構造について説明する。 [1] Overall structure of absorbent article The overall structure of the absorbent article of the present invention will be described with reference to the absorbent article 1 according to the first embodiment of the present invention.

［１．１］全般
図１から図３に示すように、吸収性物品１は略縦長状であって、少なくとも一部が液透過性の表面シート部２と、液不透過性の裏面シート部３と、表面シート部２と裏面シート部３との間に配置される吸収体部４と、表面シート部２及び吸収体部４を圧着する圧着部が連続的に形成されてなる１又は複数の防漏溝１００を有する防漏溝部１０と、を備える。本実施形態においては、更に、表面シート部２と吸収体部４との間に配置される液透過性の中間シート部５と、防漏溝部１０と、防漏シート９０と、を備える。防漏シート９０は、吸収性物品１における幅方向に延びて表面シート部２の一部であるサイドシートを構成することができる。 [1.1] General As shown in FIG. 1 to FIG. 3, the absorbent article 1 is substantially vertically long, and at least a part of the top sheet portion 2 is liquid permeable, and the back sheet portion is liquid impermeable. 3, one or more formed by continuously forming an absorber part 4 disposed between the top sheet part 2 and the back sheet part 3 and a crimping part for crimping the top sheet part 2 and the absorber part 4 The leak-proof groove portion 10 having the leak-proof groove 100. In the present embodiment, a liquid-permeable intermediate sheet portion 5, a leak-proof groove portion 10, and a leak-proof sheet 90 are further provided between the top sheet portion 2 and the absorber portion 4. The leak-proof sheet 90 can constitute a side sheet that extends in the width direction of the absorbent article 1 and is a part of the top sheet portion 2.

吸収性物品１は、長手方向における後方側に長い吸収性物品であり、具体的には尾てい骨まで覆うような後方側に長い吸収性物品である。この吸収性物品１の長手方向における長さは、例えば、２５０ｍｍ以上、好ましくは２９０ｍｍから４２０ｍｍ、更に好ましくは３３０ｍｍから４００ｍｍを例示できる。この例示した長さの吸収性物品１は、例えば、就寝時における寝姿勢時（例えば、夜用として）において好適に使用することができる。ここで、本実施形態においては、例えば、夜用として用いられる吸収性物品について説明するが、本発明における吸収性物品はこれに限定されない。例えば、本発明の吸収性物品は、本実施形態における吸収性物品１よりも短い、いわゆる昼用の吸収性物品を含むものである。   The absorbent article 1 is an absorbent article that is long on the rear side in the longitudinal direction, and specifically, is an absorbent article that is long on the rear side so as to cover even the tailbone. The length in the longitudinal direction of the absorbent article 1 is, for example, 250 mm or more, preferably 290 mm to 420 mm, more preferably 330 mm to 400 mm. The absorbent article 1 having the illustrated length can be suitably used, for example, when sleeping at the time of sleeping (for example, for night use). Here, in the present embodiment, for example, an absorbent article used for night use will be described, but the absorbent article in the present invention is not limited to this. For example, the absorbent article of the present invention includes a so-called daytime absorbent article that is shorter than the absorbent article 1 in the present embodiment.

少なくとも一部が液透過性である表面シート部２は、使用時には身体側に配置されると共に***部に当接される。表面シート部２は、全面が液透過性であっても、一部が液透過性であってもよく、また、一枚のシート状部材で構成されていても、複数のシート状部材が接着されて構成されていてもよい。本実施形態においては、表面シート部２は、吸収性物品１の幅方向における中央部に液透過域を備え、幅方向における端部側に液不透過性のサイドシートを備える。このサイドシートは、防漏シート９０が吸収性物品１における幅方向に延びて形成される。そして、***部から***される経血等の***物は、表面シート部２における液透過域及び中間シート部５を透過して、吸収体部４に吸収される。下着側に配置される裏面シート部３は液不透過性であるので、***物は下着側には透過せず、吸収体部４に吸収された状態で保持される。   At least a part of the top sheet portion 2 that is liquid permeable is disposed on the body side and in contact with the excretion portion during use. The entire surface sheet portion 2 may be liquid-permeable or partially liquid-permeable, and even if it is composed of a single sheet-like member, a plurality of sheet-like members are bonded. And may be configured. In the present embodiment, the top sheet portion 2 includes a liquid permeable region in the center portion in the width direction of the absorbent article 1 and includes a liquid-impermeable side sheet on the end side in the width direction. This side sheet is formed by the leak-proof sheet 90 extending in the width direction of the absorbent article 1. Then, excretion such as menstrual blood excreted from the excretion part passes through the liquid permeation area and the intermediate sheet part 5 in the top sheet part 2 and is absorbed by the absorber part 4. Since the back sheet part 3 arrange | positioned at the underwear side is liquid-impermeable, excrement does not permeate | transmit the underwear side, but is hold | maintained in the state absorbed by the absorber part 4. FIG.

ここで表面シート部２として、例えば、目付１５から７０ｇ／ｍ２、密度０．０１〜０．０２５ｇ／ｃｍ３のエアースルー不織布や、目付２０から４０ｇ／ｍ２の開孔フィルムを用いることができる。裏面シート部３として、例えば、目付１５から４０ｇ／ｍ２の低密度ポリエチレン（ＬＤＰＥ）からなるフィルムを用いることができる。また、吸収体部４としては、目付１２０から１０００ｇ／ｍ２の粉砕パルプと目付５０ｇ／ｍ２以下の吸収性ポリマーの混合体を用いることができる。更には、吸収体部４における液拡散シートとして目付１３から１８ｇ／ｍ２のティッシュを用いることができる。また、吸収性コアと拡散性シートからなる吸収体部４をエアレイドパルプシート等の吸収性シートから形成してもよい。中間シート部５として、例えば、目付１５から７０ｇ／ｍ２、密度０．００５から０．０３５ｇ／ｃｍ３のエアースルー不織布を用いることができる。 Here, for example, an air-through nonwoven fabric having a basis weight of 15 to 70 g / m 2 and a density of 0.01 to 0.025 g / cm 3 or a perforated film having a basis weight of 20 to 40 g / m 2 may be used as the surface sheet portion 2. it can. As the back surface sheet portion 3, for example, a film made of low density polyethylene (LDPE) having a basis weight of 15 to 40 g / m 2 can be used. Moreover, as the absorber part 4, the mixture of the pulverized pulp with a basis weight of 120 to 1000 g / m 2 and the absorbent polymer with a basis weight of 50 g / m 2 or less can be used. Furthermore, a tissue having a basis weight of 13 to 18 g / m 2 can be used as the liquid diffusion sheet in the absorber section 4. Moreover, you may form the absorber part 4 which consists of an absorptive core and a diffusible sheet from absorbent sheets, such as an airlaid pulp sheet. For example, an air-through nonwoven fabric having a basis weight of 15 to 70 g / m 2 and a density of 0.005 to 0.035 g / cm 3 can be used as the intermediate sheet portion 5.

経血等の***物の漏れを防ぐため、吸収性物品１における表面シート部２側には防漏溝部１０及び防漏シート９０が配置されている。防漏溝部１０は、例えば、１又は複数の所定形状である防漏溝１００により構成される。防漏溝１００は、後述のように長手方向における所定方向に突出する突端部を有するＵ字部を備えることができる。防漏溝１００は、所定間隔で連続的に形成される圧着部９により構成される。そして、防漏溝部１０は、使用感に配慮しながら吸収体部４に吸収された経血等の***物の所定方向への漏れを防止するよう構成される。   In order to prevent leakage of excrement such as menstrual blood, a leak-proof groove portion 10 and a leak-proof sheet 90 are arranged on the surface sheet portion 2 side of the absorbent article 1. The leak-proof groove 10 is constituted by, for example, one or a plurality of leak-proof grooves 100 having a predetermined shape. The leak-proof groove 100 can include a U-shaped portion having a protruding end portion protruding in a predetermined direction in the longitudinal direction as will be described later. The leak-proof groove 100 is constituted by a crimping portion 9 formed continuously at a predetermined interval. And the leak-proof groove part 10 is comprised so that the excretion, such as menstrual blood absorbed by the absorber part 4 in the predetermined direction, may be prevented in consideration of the feeling of use.

防漏シート９０は、表面シート部２の上面側であって、吸収体部４の幅方向における側端部近傍に形成され、身体に装着した状態において起立壁を形成するように配置される。防漏シート９０は、主に、***部から***された経血等の***物であって、表面シート部２の上面を流れる***物の漏れを防止する。ここで、防漏シート９０は、例えば、高分子弾性樹脂等の伸縮可能な材質を含むことで、装着時において身体の動きに柔軟に対応することができる起立壁を形成することができる。つまり、ゴムのような弾性部材を防漏シート９０に配置することで、起立壁を形成することができる。また、上述の通り、防漏シート９０が吸収性物品１の幅方向における端部側に延びて表面シート部２の一部であるサイドシートを構成する場合がある。   The leak-proof sheet 90 is formed on the upper surface side of the top sheet portion 2 and in the vicinity of the side end portion in the width direction of the absorbent body portion 4, and is arranged so as to form a standing wall when attached to the body. The leak-proof sheet 90 is mainly excrement such as menstrual blood excreted from the excretion part, and prevents leakage of excrement flowing on the upper surface of the top sheet part 2. Here, the leak-proof sheet 90 includes, for example, a stretchable material such as a polymer elastic resin, so that a standing wall that can flexibly respond to the movement of the body when worn can be formed. That is, the standing wall can be formed by disposing an elastic member such as rubber on the leak-proof sheet 90. In addition, as described above, the leak-proof sheet 90 may extend to the end side in the width direction of the absorbent article 1 to constitute a side sheet that is a part of the top sheet portion 2.

防漏シート９０は、例えば、スパンボンド不織布や、ポイントボンド不織布、スルーエアー不織布等が挙げられ、これらに撥水処理が施されてあってもよい。なかでも極細繊維で構成され、繊維間距離が非常に小さいメルトブローンを含むＳＭＳ（スパンボンド・メルトブロー・スパンボンド）不織布であることが好ましい。   Examples of the leak-proof sheet 90 include a spunbond nonwoven fabric, a point bond nonwoven fabric, a through-air nonwoven fabric, and the like, and these may be subjected to a water repellent treatment. Among these, an SMS (spunbond / meltblown / spunbond) nonwoven fabric including a meltblown made of ultrafine fibers and having a very small interfiber distance is preferable.

ここで、表面シート部２と中間シート部５は、ホットメルト接着剤により貼り合わされるようにして接合される。また、表面シート部２、中間シート部５と吸収体部４は、ホットメルト接着剤により貼り合わされるようにして接合される。また、表面シート部２と裏面シート部３は、ホットメルト接着剤及び加熱圧着等により形成される不図示の接合部により貼り合わされるようにして接合される。また、防漏シート９０と表面シート部２は、例えば、ホットメルト接着剤又は加熱圧着処理等により形成される所定の結合部により接合される。また、防漏シート９０と裏面シート部３は、ホットメルト接着剤又は加熱圧着処理等により形成される不図示の結合部により接合される。全体的には、ホットメルト接着剤により各シート部における面と面とを接着し、各シート部における端部を加熱圧着処理により形成される不図示の接合部により接合している。   Here, the top sheet portion 2 and the intermediate sheet portion 5 are joined together by being bonded together by a hot melt adhesive. Moreover, the surface sheet part 2, the intermediate sheet part 5, and the absorber part 4 are joined so that it may be bonded together with a hot-melt-adhesive. Further, the top sheet portion 2 and the back sheet portion 3 are joined together by being bonded together by a joint portion (not shown) formed by a hot melt adhesive, thermocompression bonding, or the like. Moreover, the leak-proof sheet 90 and the surface sheet part 2 are joined by the predetermined | prescribed coupling | bond part formed by a hot-melt-adhesive or a thermocompression bonding process etc., for example. Moreover, the leak-proof sheet 90 and the back surface sheet part 3 are joined by a joint part (not shown) formed by a hot melt adhesive or a thermocompression treatment. As a whole, the surfaces of the sheet portions are bonded to each other by a hot melt adhesive, and the end portions of the sheet portions are bonded by a bonding portion (not shown) formed by a thermocompression bonding process.

ここで、ホットメルト接着の塗工パターンは、例えば、スパイラル塗工、コントロールシーム塗工、コーター塗工、カーテンコーター塗工、サミットガン塗工等が挙げられる。ホットメルト接着における接着剤の目付量は、１ｇ／ｍ２から３０ｇ／ｍ２が好ましく、更には３ｇ／ｍ２から１０ｇ／ｍ２であることが好ましい。また、接着剤が線状に塗工されているパターンの場合には、その線径は３０μｍから３００μｍであることが好ましい。 Here, examples of the coating pattern for hot melt bonding include spiral coating, control seam coating, coater coating, curtain coater coating, and summit gun coating. The basis weight of the adhesive in hot melt bonding is preferably 1 g / m 2 to 30 g / m 2, and more preferably 3 g / m 2 to 10 g / m 2 . In the case of a pattern in which the adhesive is coated in a linear shape, the wire diameter is preferably 30 μm to 300 μm.

［１．２］防漏溝部１０及び防漏溝１００
［１．２．１］構成
図１に示すように、防漏溝部１０は、所定形状に形成された防漏溝１００により形成される。また、この所定形状に形成された防漏溝１００は、圧着部９が連続して該所定形状を形成するように配置されることで形成される。 [1.2] Leakproof groove 10 and leakproof groove 100
[1.2.1] Configuration As shown in FIG. 1, the leak-proof groove portion 10 is formed by a leak-proof groove 100 formed in a predetermined shape. Moreover, the leak-proof groove 100 formed in this predetermined shape is formed by arranging the crimping part 9 so as to continuously form the predetermined shape.

図１に示すように、防漏溝部１０は、防漏溝１００が略Ｕ字状に形成される第１Ｕ字部Ｕ１と、第２Ｕ字部Ｕ２と、第３Ｕ字部Ｕ３とを備える。該第２Ｕ字部Ｕ２は第１Ｕ字部Ｕ１における長手方向における所定方向側に形成され、同様に、第３Ｕ字部Ｕ２は第２Ｕ字部Ｕ２の長手方向における所定方向側に形成される。   As shown in FIG. 1, the leak-proof groove 10 includes a first U-shaped part U1, a second U-shaped part U2, and a third U-shaped part U3 in which the leak-proof groove 100 is formed in a substantially U shape. The second U-shaped portion U2 is formed on the predetermined direction side in the longitudinal direction of the first U-shaped portion U1, and similarly, the third U-shaped portion U2 is formed on the predetermined direction side in the longitudinal direction of the second U-shaped portion U2.

吸収性物品の長手方向における内側に形成される第１Ｕ字部Ｕ１は、該所定方向に突出する第１突端部Ｐ１を有する。そして、第１突端部Ｐ１の該吸収性物品における幅方向に２本の防漏溝１００が形成される。   The first U-shaped portion U1 formed on the inner side in the longitudinal direction of the absorbent article has a first protruding end portion P1 that protrudes in the predetermined direction. And the two leak-proof grooves 100 are formed in the width direction in this absorbent article of the 1st protrusion part P1.

第１Ｕ字部Ｕ１の所定方向側に形成される第２Ｕ字部Ｕ２は、該所定方向に突出する第２突端部Ｐ２を有する。そして、第２突端部Ｐ２の幅方向に２本の防漏溝１００が形成される。   The 2nd U-shaped part U2 formed in the predetermined direction side of the 1st U-shaped part U1 has the 2nd protrusion end part P2 which protrudes in this predetermined direction. Then, two leak-proof grooves 100 are formed in the width direction of the second protruding end portion P2.

第２Ｕ字部Ｕ２の所定方向側に形成され長手方向において最も外側に形成される第３Ｕ字部Ｕ３は、該所定方向に突出する第３突端部Ｐ３を有する。そして、第３突端部Ｐ３の幅方向には防漏溝１００は形成されていない。   The third U-shaped portion U3 formed on the second U-shaped portion U2 in the predetermined direction and formed on the outermost side in the longitudinal direction has a third protruding end portion P3 protruding in the predetermined direction. And the leak-proof groove | channel 100 is not formed in the width direction of the 3rd protrusion part P3.

［１．２．２］面積
図１に示すように、第１突端部Ｐ１における長手方向の所定方向側における外周部Ｐ１ａに接する第１接線と、第１接線に平行で第１接線から所定方向とは反対の方向に所定距離だけ離間して内周部Ｐ１ｂに接する第１平行線との間である領域Ｋに配置される第１Ｕ字部ＳＫ１の面積を第１面積とする。 [1.2.2] Area As shown in FIG. 1, a first tangent line that is in contact with the outer peripheral part P1a on the predetermined direction side in the longitudinal direction of the first protrusion P1, and a predetermined direction from the first tangent line that is parallel to the first tangent line The area of the first U-shaped portion SK1 disposed in the region K between the first parallel lines that are separated from each other by a predetermined distance in the opposite direction to the inner peripheral portion P1b is defined as a first area.

第２突端部Ｐ２における長手方向の所定方向側における外周部Ｐ２ａに接する第２接線と、第２接線に平行で第２接線から所定方向とは反対の方向に所定距離だけ離間して内周部Ｐ２ｂに接する第２平行線との間である領域Ｌに配置される第２Ｕ字部ＳＬ１の面積を第２面積とする。   A second tangent line that is in contact with the outer peripheral part P2a on the predetermined direction side in the longitudinal direction of the second projecting end part P2, and an inner peripheral part that is parallel to the second tangent line and separated from the second tangent line by a predetermined distance in a direction opposite to the predetermined direction. Let the area of 2nd U-shaped part SL1 arrange | positioned at the area | region L between the 2nd parallel lines which contact | connect P2b be a 2nd area.

また、第３突端部Ｐ３における長手方向の所定方向側における外周部Ｐ３ａに接する第３接線と、第３接線に平行で第３接線から所定方向とは反対の方向に所定距離だけ離間して内周部Ｐ３ｂに接する第３平行線との間である領域Ｍに配置される第３Ｕ字部ＳＭ１の面積を第３面積とする。ここで、帯状の領域Ｋ、Ｌ、Ｍの長手方向における幅は同一である。   In addition, the third tangent line that is in contact with the outer peripheral portion P3a on the predetermined direction side in the longitudinal direction of the third protruding end portion P3 is parallel to the third tangent line and is separated from the third tangent line by a predetermined distance in a direction opposite to the predetermined direction. The area of the third U-shaped portion SM1 disposed in the region M between the third parallel line in contact with the peripheral portion P3b is defined as a third area. Here, the widths in the longitudinal direction of the band-like regions K, L, and M are the same.

そして、本実施形態において第１面積は、第２面積よりも小さくなるよう形成される。更には、第３面積は、第１面積及び第２面積よりも大きくなるよう形成される。   In the present embodiment, the first area is formed to be smaller than the second area. Furthermore, the third area is formed to be larger than the first area and the second area.

更に、第１面積と領域Ｋに配置される第１突端部の幅方向に形成される防漏溝ＳＫ２、ＳＫ３との面積の総和を第４面積とする。また、第２面積と領域Ｌに配置される第２突端部の幅方向に形成される防漏溝ＳＬ２、ＳＬ３との面積の総和を第５面積とする。そして、この第４面積と第５面積とが略同じになるように第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２等を形成することが好ましい。   Further, the sum of the areas of the first area and the leakage preventing grooves SK2 and SK3 formed in the width direction of the first protrusions disposed in the region K is defined as a fourth area. Further, the sum of the areas of the second area and the leakage prevention grooves SL2 and SL3 formed in the width direction of the second protrusions disposed in the region L is defined as a fifth area. The first U-shaped portion U1, the second U-shaped portion U2, and the like are preferably formed so that the fourth area and the fifth area are substantially the same.

また、第３面積が、第４面積及び／又は第５面積と略同じになるように第３Ｕ字部Ｕ３を形成することが好ましい。   The third U-shaped portion U3 is preferably formed so that the third area is substantially the same as the fourth area and / or the fifth area.

上述のように、所定領域Ｋ、Ｌ、Ｍに配置される各Ｕ字部の面積を調整することで、例えば、圧着処理時における各圧着部９に加えられる圧力を調整することができる。ここで、それぞれの面積を調整する手段として、後述するそれぞれのＵ字部の突端部における曲率半径を調整することのほか、例えば、それぞれの突端部近傍の該Ｕ字部を構成する防漏溝１００の幅（太さ）を調整することでも、それぞれの面積を調整することができる。また、後述するように、それぞれの突端部近傍の該Ｕ字部を構成する防漏溝１００における圧着部９の面積を調整することでも、各圧着部９に加えられる圧力を調整することができる。   As described above, by adjusting the area of each U-shaped portion arranged in the predetermined regions K, L, and M, for example, the pressure applied to each crimping portion 9 during the crimping process can be adjusted. Here, as means for adjusting the respective areas, in addition to adjusting the radius of curvature at the protruding ends of the respective U-shaped portions, which will be described later, for example, leak-proof grooves constituting the U-shaped portions in the vicinity of the protruding end portions Each area can also be adjusted by adjusting the width (thickness) of 100. Further, as will be described later, the pressure applied to each crimping portion 9 can also be adjusted by adjusting the area of the crimping portion 9 in the leak-proof groove 100 that constitutes the U-shaped portion in the vicinity of each protruding end. .

また、後述するが、防漏溝１００の第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２、第３Ｕ字部Ｕ３における領域Ｋ、Ｌ、Ｍにおける上記接線と上記平行線との中間の中間線と交差ある不図示の交差部のそれぞれの長さが所定の関係になるように調整することでも、各圧着部９に加えられる圧力を調整することができる。   As will be described later, the intermediate line between the tangent line and the parallel line in the regions K, L, and M in the first U-shaped part U1, the second U-shaped part U2, and the third U-shaped part U3 of the leakage prevention groove 100 intersects with the intermediate line. The pressure applied to each crimping portion 9 can also be adjusted by adjusting the lengths of certain intersections (not shown) so as to have a predetermined relationship.

［１．２．３］曲率半径
図１に示すように、第１Ｕ字部Ｕ１の第１突端部Ｐ１における内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２Ｕ字部Ｕ２の第２突端部Ｐ２における内周部Ｐ２ｂにおける第２曲率半径Ｒ２より小さくなるよう形成されている。 [1.2.3] Radius of curvature As shown in FIG. 1, the first radius of curvature R1 of the inner peripheral portion P1b of the first protruding end P1 of the first U-shaped portion U1 is the second protruding end of the second U-shaped portion U2. It is formed to be smaller than the second curvature radius R2 in the inner peripheral portion P2b in P2.

言い換えると、第１突端部Ｐ１の幅方向に形成される防漏溝１００が２本である第１Ｕ字部Ｕ１の前記内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも小さい。   In other words, the first radius of curvature R1 in the inner peripheral portion P1b of the first U-shaped portion U1 having two leakage prevention grooves 100 formed in the width direction of the first protruding end portion P1 is the width of the second protruding end portion P2. The leakage prevention groove 100 formed in the direction is smaller than the second curvature radius R2 in the inner peripheral portion P2b of the second U-shaped portion U2 having two.

また、第３Ｕ字部Ｕ３の第３突端部Ｐ３における内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１曲率半径Ｒ１及び／又は第２曲率半径Ｒ２より大きくなるよう形成されている。   Further, the third curvature radius R3 in the inner peripheral portion P3b of the third protruding end portion P3 of the third U-shaped portion U3 is formed to be larger than the first curvature radius R1 and / or the second curvature radius R2.

言い換えると、第３突端部Ｐ３の幅方向に防漏溝１００が形成されない第３Ｕ字部Ｕ３の前記内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１突端部Ｐ１の幅方向に形成される防漏溝１００が２本である第１Ｕ字部Ｕ１の前記内周部Ｐ１ｂにおける第１曲率半径Ｒ１及び／又は第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも大きい。   In other words, the third radius of curvature R3 in the inner peripheral portion P3b of the third U-shaped portion U3 in which the leakage preventing groove 100 is not formed in the width direction of the third protruding end portion P3 is formed in the width direction of the first protruding end portion P1. There are two leak-proof grooves 100 formed in the width direction of the first curvature radius R1 and / or the second projecting end portion P2 in the inner peripheral portion P1b of the first U-shaped portion U1 having two leak-proof grooves 100. It is larger than the second curvature radius R2 in the inner peripheral portion P2b of the second U-shaped portion U2.

曲率半径の値として、例えば、装着時におけるフィット感に考慮した場合、Ｒ１として、０ｍｍから１０ｍｍ、好ましくは５ｍｍから１０ｍｍを例示できる。Ｒ２として、０ｍｍから１５ｍｍ、好ましくは５ｍｍから１２ｍｍを例示できる。Ｒ３として、０ｍｍから２０ｍｍ、好ましくは１０ｍｍから１８ｍｍを例示できる。上述した曲率半径の範囲は、第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２、第３Ｕ字部Ｕ３が略Ｖ字状である場合を含む範囲である。ここで、第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２、第３Ｕ字部Ｕ３が略Ｖ字状ではない場合における曲率半径の値として、例えば、Ｒ１として、３ｍｍから１０ｍｍ、好ましくは５ｍｍから１０ｍｍを例示できる。Ｒ２として、３ｍｍから１５ｍｍ、好ましくは５ｍｍから１２ｍｍを例示できる。Ｒ３として、１０ｍｍから２０ｍｍ、好ましくは１０ｍｍから１８ｍｍを例示できる。また、例えば、Ｒ１、Ｒ２、Ｒ３の組み合わせとして、Ｒ１が８．５ｍｍ、Ｒ２が８．５ｍｍ、Ｒ３が１２．５ｍｍの場合を例示できるが、これに限定するものではない。   As the value of the radius of curvature, for example, when considering the fit at the time of wearing, R1 can be exemplified as 0 mm to 10 mm, preferably 5 mm to 10 mm. Examples of R2 include 0 mm to 15 mm, preferably 5 mm to 12 mm. Examples of R3 include 0 mm to 20 mm, preferably 10 mm to 18 mm. The range of the radius of curvature described above is a range including the case where the first U-shaped portion U1, the second U-shaped portion U2, and the third U-shaped portion U3 are substantially V-shaped. Here, as the value of the radius of curvature when the first U-shaped part U1, the second U-shaped part U2, and the third U-shaped part U3 are not substantially V-shaped, for example, R1 is 3 mm to 10 mm, preferably 5 mm to 10 mm. It can be illustrated. Examples of R2 include 3 mm to 15 mm, preferably 5 mm to 12 mm. Examples of R3 include 10 mm to 20 mm, preferably 10 mm to 18 mm. For example, as a combination of R1, R2, and R3, a case where R1 is 8.5 mm, R2 is 8.5 mm, and R3 is 12.5 mm can be exemplified, but the present invention is not limited thereto.

ここで、上述のように、各Ｕ字部の内周部の曲率半径を調整することで、例えば、圧着処理時における各圧着部９に加えられる圧力を調整することができる。   Here, as described above, by adjusting the radius of curvature of the inner peripheral portion of each U-shaped portion, for example, the pressure applied to each crimping portion 9 during the crimping process can be adjusted.

更に、後述する圧着部９を形成するための図１３に示される凸部４５の高さを調整することで、圧着部９の深さを調整することができる。例えば、圧着部９の深さを深くすることで、圧着部９の剥離を更に抑制することができる。本実施形態においては、例えば、通常、圧着部９に加えられる圧力が低い第１Ｕ字部Ｕ１の第１突端部Ｐ１近傍に形成される圧着部９の深さを深くすることで、第１Ｕ字部Ｕ１の第１突端部Ｐ１における剥離を抑制することができる。また、第２Ｕ字部Ｕ２の第２突端部Ｐ２の近傍に形成される圧着部９深さや、第３Ｕ字部Ｕ３の第３突端部Ｐ３の近傍に形成される圧着部９の深さは、上述した面積や曲率半径等に応じて調整することができる。例えば、本実施形態においては、第１突端部Ｐ１近傍に形成される圧着部９の深さｄ１を最も深くし、第２突端部Ｐ２近傍に形成される圧着部９の深さｄ２は深さｄ１と同じ又はｄ１に次いで深くし、第３Ｕ字部Ｕ３の第３突端部Ｐ３近傍に形成される圧着部９の深さｄ３を、深さｄ１及び深さｄ２よりも浅くすることができる。   Furthermore, the depth of the crimping part 9 can be adjusted by adjusting the height of the convex part 45 shown in FIG. 13 for forming the crimping part 9 described later. For example, peeling of the crimping part 9 can be further suppressed by increasing the depth of the crimping part 9. In the present embodiment, for example, the first U-shape is usually increased by increasing the depth of the crimp portion 9 formed in the vicinity of the first protruding end portion P1 of the first U-shape portion U1 where the pressure applied to the crimp portion 9 is low. Separation at the first protruding end portion P1 of the portion U1 can be suppressed. Further, the depth of the crimping portion 9 formed in the vicinity of the second protruding end portion P2 of the second U-shaped portion U2 and the depth of the crimping portion 9 formed in the vicinity of the third protruding end portion P3 of the third U-shaped portion U3 are as follows: It can be adjusted according to the above-described area, radius of curvature, and the like. For example, in the present embodiment, the depth d1 of the crimping part 9 formed in the vicinity of the first protrusion P1 is the deepest, and the depth d2 of the crimping part 9 formed in the vicinity of the second protrusion P2 is the depth. The depth d3 of the crimping portion 9 formed in the vicinity of the third protruding end portion P3 of the third U-shaped portion U3 can be made shallower than the depth d1 and the depth d2 by making it the same as d1 or deepening next to d1.

［１．２．４］製造
防漏溝部１０を形成する所定形状の防漏溝１００は、例えば、図１５（ａ）及び（ｂ）に示すように、所定凸部４５が表面に形成された圧着ロール部３１０と、平面ロール３２０との間を吸収性物品１が押圧されながら通過することで圧着ロール部３１０と当接した表面側に形成される。この防漏溝１００を形成するためには、加熱及び加圧状態で圧着処理することが好ましく、例えば、圧着ロール部３１０の温度を９５度（３６８．１５Ｋ）、圧力を２５ｋｇｍ／ｓ２（Ｎ）にした状態で圧着処理することができる。また、防漏溝１００を形成するための圧着形成部である凸部４５の幅は、各種製品の形態によって異なるが、例えば、２．５ｍｍ幅に形成された凸部４５により圧着処理することができる。 [1.2.4] Manufacture The leak-proof groove 100 having the predetermined shape forming the leak-proof groove part 10 has, for example, a predetermined convex part 45 formed on the surface thereof as shown in FIGS. 15 (a) and 15 (b). When the absorbent article 1 passes between the pressure roll unit 310 and the flat roll 320 while being pressed, it is formed on the surface side in contact with the pressure roll unit 310. In order to form the leak-proof groove 100, it is preferable to perform pressure-bonding treatment in a heated and pressurized state. For example, the temperature of the pressure-bonding roll unit 310 is 95 degrees (368.15 K), and the pressure is 25 kgm / s 2 (N ) Can be crimped. Further, the width of the convex portion 45, which is a pressure-bonding formation portion for forming the leak-proof groove 100, varies depending on the form of various products. For example, the convex portion 45 formed with a width of 2.5 mm may be pressure-bonded. it can.

［１．２．５］剥離
図１３（ａ）から（ｄ）に示すように、防漏溝１００は、表面シート部２と吸収体部４が積層的に配置された状態で、表面シート部２の側から凸部４５が押圧されることで形成される。図１３（ｂ）に示すように、凸部４５が押圧されて防漏溝１００が形成される際には、防漏溝１００の近傍の吸収体部４にも押圧力Ｆ１が加えられ、防漏溝１００近傍の吸収体部４は圧縮される。次いで、図１３（ｃ）に示すように、凸部４５による押圧が解除された場合には、圧縮された吸収体部４が回復する回復力（弾力）Ｆ２が生じ、防漏溝１００を剥離（浮く）させる方向に力が加えられる。更に、図１３（ｄ）に示すように、凸部４５による圧着で引っ張られた表面シート部２が元に戻るための力Ｆ４が生じるので、防漏溝１００には、防漏溝１００を剥離（浮く）される方向の力Ｆ３が更に加えられる。つまり、防漏溝１００には、常に、これを剥離（浮く）させるような力が働いていることが分かる。 [1.2.5] Peeling As shown in FIGS. 13A to 13D, the leak-proof groove 100 is a surface sheet portion in a state where the surface sheet portion 2 and the absorber portion 4 are arranged in a stacked manner. The convex portion 45 is pressed from the second side. As shown in FIG. 13B, when the protrusion 45 is pressed to form the leak-proof groove 100, the pressing force F1 is also applied to the absorber part 4 in the vicinity of the leak-proof groove 100 to prevent the leak-proof groove 100. The absorber part 4 in the vicinity of the leakage groove 100 is compressed. Next, as shown in FIG. 13C, when the pressing by the convex portion 45 is released, a recovery force (elasticity) F <b> 2 that recovers the compressed absorbent body portion 4 is generated, and the leakage prevention groove 100 is peeled off. A force is applied in the direction of floating. Further, as shown in FIG. 13D, a force F4 is generated for returning the top sheet portion 2 pulled by the crimping by the convex portion 45, so that the leakage preventing groove 100 is peeled off from the leakage preventing groove 100. A force F3 in the direction of (floating) is further applied. That is, it can be seen that the leak-proof groove 100 is always subjected to a force for peeling (floating) it.

図１４に示すように、防漏溝１００は、圧着部９の幅ｂ、圧着部９の厚さｄとなるよう圧着されるが、上述のように、防漏溝１００には、これを剥離（浮く）させるような力が働いている。この力が防漏溝１００を維持する力を上回ると、防漏溝１００が剥離し、表面シート部２が浮いた状態になる。特に、第１突端部Ｐ１、第２突端部Ｐ２、第３突端部Ｐ３には多方向からの力が加えられているので剥離（浮く）しやすいため、例えば、防漏溝１００の形成時における圧着力が弱くならないよう、上述したように面積や曲率半径について調整をすることが好ましい。   As shown in FIG. 14, the leak-proof groove 100 is crimped so as to have the width b of the crimping part 9 and the thickness d of the crimping part 9. As described above, the leak-proof groove 100 is peeled off. The force that makes you float is working. When this force exceeds the force for maintaining the leak-proof groove 100, the leak-proof groove 100 is peeled off and the top sheet portion 2 is in a floating state. In particular, since forces from multiple directions are applied to the first projecting end P1, the second projecting end P2, and the third projecting end P3, they are easy to peel off (float). It is preferable to adjust the area and the radius of curvature as described above so that the crimping force is not weakened.

［１．３］使用態様
図１及び図２により、第１実施形態における吸収性物品１により、本発明の吸収性物品における使用態様の一例について説明する。 [1.3] Usage Mode An example of usage mode in the absorbent article of the present invention will be described with reference to FIGS. 1 and 2 using the absorbent article 1 in the first embodiment.

図１及び図２により、吸収性物品１の使用態様例として、就寝時の寝姿勢における使用態様を説明する。図２に示すように、寝姿勢における使用状態においては、吸収性物品１における後方側８６０が床面と略平行に配置され、前方側８４０が該吸収性物品１における後方側８６０に対して所定角度をなすように、言い換えると、床面に対して所定の角度をなすようにして配置される。通常の吸収性物品と同様に、ウィング状のサイドフラップＷＡ、ＷＢを折り返すと共に、不図示の粘着部８等により下着等に固定する。   With reference to FIG. 1 and FIG. 2, as a usage example of the absorbent article 1, a usage mode in a sleeping posture at bedtime will be described. As shown in FIG. 2, in the use state in the sleeping position, the rear side 860 of the absorbent article 1 is disposed substantially parallel to the floor surface, and the front side 840 is predetermined with respect to the rear side 860 of the absorbent article 1. It arrange | positions so that it may make an angle, in other words, may make a predetermined angle with respect to a floor surface. Similar to a normal absorbent article, the wing-shaped side flaps WA and WB are folded back and fixed to underwear or the like by an adhesive portion 8 (not shown) or the like.

ウィング状のサイドフラップＷＡ、ＷＢは、表面シート部２を構成するサイドシートの一部が側方に延在されると共に、裏面シート部３の一部が幅方向外側に延在され、これら延在されたサイドシートの延在部分と、裏面シート部３の延在部分との間に不図示の防水シートを配置し、それぞれをホットメルト接着剤により接合して形成される。更に、ウィング状のサイドフラップＷＡ、ＷＢの外縁を、例えば、加熱圧着処理（加熱シール）することで接合する。   In the wing-shaped side flaps WA and WB, a part of the side sheet constituting the top sheet part 2 is extended to the side, and a part of the back sheet part 3 is extended to the outside in the width direction. A waterproof sheet (not shown) is disposed between the extending portion of the existing side sheet and the extending portion of the back surface sheet portion 3, and each is joined by a hot melt adhesive. Furthermore, the outer edges of the wing-shaped side flaps WA and WB are joined by, for example, thermocompression treatment (heat sealing).

就寝時等における寝姿勢では、前方側８４０で吸収された経血等の***物が、折り曲げ部８５０に対して後方である後方側８６０まで流れる場合がある。このような場合において、防漏溝部１０における第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２及び第３Ｕ字部Ｕ３により、好適に経血等の***物の漏れを抑制することができる。   In a sleeping posture such as at bedtime, excretion such as menstrual blood absorbed on the front side 840 may flow to the rear side 860 which is the rear side with respect to the bent portion 850. In such a case, the leakage of excrement such as menstrual blood can be suitably suppressed by the first U-shaped portion U1, the second U-shaped portion U2 and the third U-shaped portion U3 in the leakage preventing groove portion 10.

［２］実施形態及び比較形態
［２．１］第２実施形態及び第３実施形態
図４及び図５により第２実施形態及び第３実施形態における吸収性物品を説明する。図４及び図５においては、本発明の特徴を理解しやすくするため防漏溝部１０を中心に図示する。図４に示すように、第２実施形態の吸収性物品１Ａは、所定形状に形成された防漏溝１００により形成される防漏溝部１０を備える。この所定形状に形成された防漏溝１００は、圧着部９が連続して該所定形状を形成するように配置されることで形成される。 [2] Embodiment and Comparative Mode [2.1] Second and Third Embodiments Absorbent articles in the second and third embodiments will be described with reference to FIGS. 4 and 5. In FIGS. 4 and 5, the leak-proof groove 10 is mainly illustrated for easy understanding of the features of the present invention. As shown in FIG. 4, the absorbent article 1 </ b> A of the second embodiment includes a leak-proof groove 10 formed by a leak-proof groove 100 formed in a predetermined shape. The leak-proof groove 100 formed in this predetermined shape is formed by arranging the crimping portions 9 so as to continuously form the predetermined shape.

図４に示すように、防漏溝部１０は、防漏溝１００が略Ｕ字状に形成される第１Ｕ字部Ｕ１と、第２Ｕ字部Ｕ２と、第３Ｕ字部Ｕ３とを備える。該第２Ｕ字部Ｕ２は第１Ｕ字部Ｕ１における長手方向における所定方向側に形成され、同様に、第３Ｕ字部Ｕ３は第２Ｕ字部Ｕ２の長手方向における所定方向側に形成される。本実施形態における吸収性物品１Ａは第１実施形態における吸収性物品１と類似するが、第２Ｕ字部Ｕ２における幅方向の端部が第１突端部Ｐ１よりも長手方向における上側にあるため、第２Ｕ字部Ｕ２における第２突端部Ｐ２の幅方向に形成される防漏溝の本数が第１実施形態の場合よりも多くなる点で異なる。   As shown in FIG. 4, the leak-proof groove 10 includes a first U-shaped part U1, a second U-shaped part U2, and a third U-shaped part U3 in which the leak-proof groove 100 is formed in a substantially U shape. The second U-shaped portion U2 is formed on the predetermined direction side in the longitudinal direction of the first U-shaped portion U1, and similarly, the third U-shaped portion U3 is formed on the predetermined direction side in the longitudinal direction of the second U-shaped portion U2. Absorbent article 1A in the present embodiment is similar to absorbent article 1 in the first embodiment, but the end in the width direction of second U-shaped portion U2 is on the upper side in the longitudinal direction from first protruding end P1, The second U-shaped portion U2 is different in that the number of leak-proof grooves formed in the width direction of the second protruding end portion P2 is larger than that in the first embodiment.

吸収性物品１Ａの長手方向における内側に形成される第１Ｕ字部Ｕ１は、該所定方向に突出する第１突端部Ｐ１を有する。そして、第１突端部Ｐ１の該吸収性物品１Ａにおける幅方向には４本の防漏溝１００が形成される。   The first U-shaped portion U1 formed on the inner side in the longitudinal direction of the absorbent article 1A has a first protruding end portion P1 protruding in the predetermined direction. And the four leak-proof grooves 100 are formed in the width direction in 1 A of this absorbent article of the 1st protrusion part P1.

第１Ｕ字部Ｕ１の所定方向側に形成される第２Ｕ字部Ｕ２は、該所定方向に突出する第２突端部Ｐ２を有する。そして、第２突端部Ｐ２の幅方向には２本の防漏溝１００が形成される。   The 2nd U-shaped part U2 formed in the predetermined direction side of the 1st U-shaped part U1 has the 2nd protrusion end part P2 which protrudes in this predetermined direction. Then, two leak-proof grooves 100 are formed in the width direction of the second protruding end portion P2.

第２Ｕ字部Ｕ２の所定方向側に形成され長手方向において最も外側に形成される第３Ｕ字部Ｕ３は、該所定方向に突出する第３突端部Ｐ３を有する。そして、第３突端部Ｐ３の幅方向には防漏溝１００は形成されていない。   The third U-shaped portion U3 formed on the second U-shaped portion U2 in the predetermined direction and formed on the outermost side in the longitudinal direction has a third protruding end portion P3 protruding in the predetermined direction. And the leak-proof groove | channel 100 is not formed in the width direction of the 3rd protrusion part P3.

そして、図４に示すように、本実施形態において第１面積は、第２面積よりも小さくなるよう形成される。更には、第３面積は、第１面積及び第２面積よりも大きくなるよう形成される。   And as shown in FIG. 4, in this embodiment, a 1st area is formed so that it may become smaller than a 2nd area. Furthermore, the third area is formed to be larger than the first area and the second area.

更に、第１面積と領域Ｋに配置される第１突端部Ｐ１の幅方向に形成される防漏溝ＳＫ２、ＳＫ３、ＳＫ４、ＳＫ５との面積の総和を第４面積とする。また、第２面積と領域Ｌに配置される第２突端部Ｐ２の幅方向に形成される防漏溝ＳＬ２、ＳＬ３との面積の総和を第５面積とする。そして、この第４面積と第５面積とが略同じになるように第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２等を形成することが好ましい。   Furthermore, the sum of the areas of the first area and the leakage prevention grooves SK2, SK3, SK4, and SK5 formed in the width direction of the first protrusion P1 disposed in the region K is defined as a fourth area. Further, the sum of the areas of the second area and the leakage prevention grooves SL2 and SL3 formed in the width direction of the second protrusion P2 disposed in the region L is defined as a fifth area. The first U-shaped portion U1, the second U-shaped portion U2, and the like are preferably formed so that the fourth area and the fifth area are substantially the same.

また、第３面積が、第４面積及び／又は第５面積と略同じになるように第３Ｕ字部Ｕ３を形成することが好ましい。   The third U-shaped portion U3 is preferably formed so that the third area is substantially the same as the fourth area and / or the fifth area.

図４に示すように、第１Ｕ字部Ｕ１の第１突端部Ｐ１における不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２Ｕ字部Ｕ２の第２突端部における不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２より小さくなるよう形成されている。   As shown in FIG. 4, the first radius of curvature R1 in the inner peripheral portion P1b (not shown) in the first protruding end portion P1 of the first U-shaped portion U1 is the inner periphery not shown in the second protruding end portion of the second U-shaped portion U2. It is formed to be smaller than the second curvature radius R2 in the part P2b.

言い換えると、第１突端部Ｐ１の幅方向に形成される防漏溝１００が４本である第１Ｕ字部Ｕ１の前記内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも小さい。   In other words, the first radius of curvature R1 in the inner peripheral portion P1b of the first U-shaped portion U1 having four leakage prevention grooves 100 formed in the width direction of the first protruding end portion P1 is the width of the second protruding end portion P2. The leakage prevention groove 100 formed in the direction is smaller than the second curvature radius R2 in the inner peripheral portion P2b of the second U-shaped portion U2 having two.

また、第３Ｕ字部Ｕ３の第３突端部Ｐ３における不図示の内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１曲率半径Ｒ１及び／又は第２曲率半径Ｒ２より大きくなるよう形成されている。   Further, a third curvature radius R3 in an inner peripheral portion P3b (not shown) in the third protrusion P3 of the third U-shaped portion U3 is formed to be larger than the first curvature radius R1 and / or the second curvature radius R2. .

言い換えると、第３突端部Ｐ３の幅方向に防漏溝１００が形成されない第３Ｕ字部Ｕ３の前記内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１突端部Ｐ１の幅方向に形成される防漏溝１００が４本である第１Ｕ字部Ｕ１の前記内周部Ｐ１ｂにおける第１曲率半径Ｒ１及び／又は第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも大きい。   In other words, the third radius of curvature R3 in the inner peripheral portion P3b of the third U-shaped portion U3 in which the leakage preventing groove 100 is not formed in the width direction of the third protruding end portion P3 is formed in the width direction of the first protruding end portion P1. There are two leakage prevention grooves 100 formed in the width direction of the first curvature radius R1 and / or the second protruding end portion P2 in the inner peripheral portion P1b of the first U-shaped portion U1 having four leakage prevention grooves 100. It is larger than the second curvature radius R2 in the inner peripheral portion P2b of the second U-shaped portion U2.

図５に示すように、第３実施形態における吸収性物品１Ｂは、第２実施形態における吸収性物品１Ａと類似する吸収性物品であり、第１Ｕ字部Ｕ１及び第２Ｕ字部Ｕ２の形状が異なる吸収性物品である。   As shown in FIG. 5, the absorbent article 1B in the third embodiment is an absorbent article similar to the absorbent article 1A in the second embodiment, and the shapes of the first U-shaped part U1 and the second U-shaped part U2 are the same. Different absorbent articles.

吸収性物品１Ｂの長手方向における内側に形成される第１Ｕ字部Ｕ１は、該所定方向に突出する第１突端部Ｐ１を有する。そして、第１突端部Ｐ１の該吸収性物品における幅方向に４本の防漏溝１００が形成される。   The first U-shaped portion U1 formed on the inner side in the longitudinal direction of the absorbent article 1B has a first protruding end portion P1 that protrudes in the predetermined direction. And the four leak-proof grooves 100 are formed in the width direction in this absorbent article of the 1st protrusion part P1.

第１Ｕ字部Ｕ１の所定方向側に形成される第２Ｕ字部Ｕ２は、該所定方向に突出する第２突端部Ｐ２を有する。そして、第２突端部Ｐ２の幅方向に２本の防漏溝１００が形成される。   The 2nd U-shaped part U2 formed in the predetermined direction side of the 1st U-shaped part U1 has the 2nd protrusion end part P2 which protrudes in this predetermined direction. Then, two leak-proof grooves 100 are formed in the width direction of the second protruding end portion P2.

第２Ｕ字部Ｕ２の所定方向側に形成され長手方向において最も外側に形成される第３Ｕ字部Ｕ３は、該所定方向に突出する第３突端部Ｐ３を有する。そして、第３突端部Ｐ３の幅方向には防漏溝１００は形成されていない。   The third U-shaped portion U3 formed on the second U-shaped portion U2 in the predetermined direction and formed on the outermost side in the longitudinal direction has a third protruding end portion P3 protruding in the predetermined direction. And the leak-proof groove | channel 100 is not formed in the width direction of the 3rd protrusion part P3.

そして、図５に示すように、本実施形態において第１面積は、第２面積よりも小さくなるよう形成される。更には、第３面積は、第１面積及び第２面積よりも大きくなるよう形成される。本実施形態における第１面積及び第２面積は、第１実施形態における第１面積及び第２面積よりも小さくなるよう第１Ｕ字部Ｕ１及び第２Ｕ字部Ｕ２が形成されている。   And as shown in FIG. 5, in this embodiment, a 1st area is formed so that it may become smaller than a 2nd area. Furthermore, the third area is formed to be larger than the first area and the second area. The first U-shaped portion U1 and the second U-shaped portion U2 are formed so that the first area and the second area in the present embodiment are smaller than the first area and the second area in the first embodiment.

更に、第１面積と領域Ｋに配置される第１突端部の幅方向に形成される防漏溝ＳＫ２、ＳＫ３、ＳＫ４、ＳＫ５との面積の総和を第４面積とする。また、第２面積と領域Ｌに配置される第２突端部の幅方向に形成される防漏溝ＳＬ２、ＳＬ３との面積の総和を第５面積とする。そして、この第４面積と第５面積とが略同じになるように第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２等を形成することが好ましい。   Furthermore, the sum of the areas of the first area and the leakage prevention grooves SK2, SK3, SK4, and SK5 formed in the width direction of the first protrusions disposed in the region K is defined as a fourth area. Further, the sum of the areas of the second area and the leakage prevention grooves SL2 and SL3 formed in the width direction of the second protrusions disposed in the region L is defined as a fifth area. The first U-shaped portion U1, the second U-shaped portion U2, and the like are preferably formed so that the fourth area and the fifth area are substantially the same.

また、第３面積が、第４面積及び／又は第５面積と略同じになるように第３Ｕ字部Ｕ３を形成することが好ましい。   The third U-shaped portion U3 is preferably formed so that the third area is substantially the same as the fourth area and / or the fifth area.

図５に示すように、第１Ｕ字部Ｕ１の第１突端部Ｐ１における不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２Ｕ字部Ｕ２の第２突端部Ｐ２における不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２より小さくなるよう形成されている。本実施形態における第１曲率半径Ｒ１及び第２曲率半径Ｒ２は、第１実施形態における第１曲率半径Ｒ１及び第２曲率半径Ｒ２よりも小さくなるよう第１Ｕ字部Ｕ１及び第２Ｕ字部Ｕ２が形成されている。   As shown in FIG. 5, the first radius of curvature R1 in the inner peripheral portion P1b (not shown) in the first protruding end portion P1 of the first U-shaped portion U1 is the inner radius (not shown) in the second protruding end portion P2 of the second U-shaped portion U2. It is formed so as to be smaller than the second curvature radius R2 in the peripheral portion P2b. The first U-shaped portion U1 and the second U-shaped portion U2 are set so that the first curvature radius R1 and the second curvature radius R2 in the present embodiment are smaller than the first curvature radius R1 and the second curvature radius R2 in the first embodiment. Is formed.

言い換えると、第１突端部Ｐ１の幅方向に形成される防漏溝１００が４本である第１Ｕ字部Ｕ１の前記内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも小さい。   In other words, the first radius of curvature R1 in the inner peripheral portion P1b of the first U-shaped portion U1 having four leakage prevention grooves 100 formed in the width direction of the first protruding end portion P1 is the width of the second protruding end portion P2. The leakage prevention groove 100 formed in the direction is smaller than the second curvature radius R2 in the inner peripheral portion P2b of the second U-shaped portion U2 having two.

また、第３Ｕ字部Ｕ３の第３突端部Ｐ３における不図示の内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１曲率半径Ｒ１及び／又は第２曲率半径Ｒ２より大きくなるよう形成されている。   Further, a third curvature radius R3 in an inner peripheral portion P3b (not shown) in the third protrusion P3 of the third U-shaped portion U3 is formed to be larger than the first curvature radius R1 and / or the second curvature radius R2. .

言い換えると、第３突端部Ｐ３の幅方向に防漏溝１００が形成されない第３Ｕ字部Ｕ３の前記内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１突端部Ｐ１の幅方向に形成される防漏溝１００が４本である第１Ｕ字部Ｕ１の前記内周部Ｐ１ｂにおける第１曲率半径Ｒ１及び／又は第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも大きい。   In other words, the third radius of curvature R3 in the inner peripheral portion P3b of the third U-shaped portion U3 in which the leakage preventing groove 100 is not formed in the width direction of the third protruding end portion P3 is formed in the width direction of the first protruding end portion P1. There are two leakage prevention grooves 100 formed in the width direction of the first curvature radius R1 and / or the second protruding end portion P2 in the inner peripheral portion P1b of the first U-shaped portion U1 having four leakage prevention grooves 100. It is larger than the second curvature radius R2 in the inner peripheral portion P2b of the second U-shaped portion U2.

また、図１６に示すように、第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２、第３Ｕ字部Ｕ３のそれぞれは、連続的に配置される圧着部９により形成される。本実施形態における各Ｕ字部は、例えば、それぞれの突端部近傍において長手方向に縦長の長方形状である圧着部９が幅方向に略平行に並列配置される。   Moreover, as shown in FIG. 16, each of the 1st U-shaped part U1, the 2nd U-shaped part U2, and the 3rd U-shaped part U3 is formed of the crimping | compression-bonding part 9 arrange | positioned continuously. In each of the U-shaped portions in the present embodiment, for example, the crimping portions 9 that are rectangular in the longitudinal direction are arranged in parallel in the width direction in the vicinity of the respective protruding ends.

本実施形態において、第１Ｕ字部Ｕ１における第１突端部Ｐ１近傍に形成される圧着部９は、幅方向における長さである圧着部幅がＷ１、長手方向における長さである圧着部高さがＨ１である。   In the present embodiment, the pressure-bonding portion 9 formed in the vicinity of the first protruding end portion P1 in the first U-shaped portion U1 has a pressure-bonding portion width W1 which is a length in the width direction and a pressure-bonding portion height which is a length in the longitudinal direction. Is H1.

第２Ｕ字部Ｕ２における第２突端部Ｐ２近傍に形成される圧着部９は、幅方向における長さである圧着部幅がＷ２、長手方向における長さである圧着部高さがＨ２である。   The crimping part 9 formed near the second protruding end P2 in the second U-shaped part U2 has a crimping part width W2 which is a length in the width direction and a crimping part height H2 which is a length in the longitudinal direction.

第３Ｕ字部Ｕ３における第３突端部Ｐ３近傍に形成される圧着部９は、幅方向における長さである圧着部幅がＷ３、長手方向における長さである圧着部高さがＨ３である。ここで、各突端部近傍に形成される圧着部９それぞれの幅方向における間隔は略同一となるよう調整される。   The crimping part 9 formed in the vicinity of the third protruding end P3 in the third U-shaped part U3 has a crimping part width which is a length in the width direction W3 and a crimping part height which is a length in the longitudinal direction is H3. Here, the intervals in the width direction of the crimping portions 9 formed in the vicinity of the respective protruding end portions are adjusted to be substantially the same.

本実施形態において、図１６に示すように第１突端部Ｐ１における長手方向の所定方向側における外周部Ｐ１ａに接する第１接線と、第１接線に平行で第１接線から所定方向とは反対の方向に所定距離だけ離間して内周部Ｐ１ｂに接する第１平行線との間である領域Ｋに配置される第１Ｕ字部ＳＫ１に含まれる圧着部９の面積の総和を第１圧着部面積とする。   In the present embodiment, as shown in FIG. 16, the first tangent line that contacts the outer peripheral portion P1a on the predetermined direction side in the longitudinal direction of the first protrusion P1 is parallel to the first tangent line and is opposite to the predetermined direction from the first tangent line. The total area of the crimping parts 9 included in the first U-shaped part SK1 disposed in the region K between the first parallel lines that are separated by a predetermined distance in the direction and in contact with the inner peripheral part P1b is the first crimping part area And

第２突端部Ｐ２における長手方向の所定方向側における外周部Ｐ２ａに接する第２接線と、第２接線に平行で第２接線から所定方向とは反対の方向に所定距離だけ離間して内周部Ｐ２ｂに接する第２平行線との間である領域Ｌに配置される第２Ｕ字部ＳＬ１に含まれる圧着部９の面積の総和を第２圧着部面積とする。   A second tangent line that is in contact with the outer peripheral part P2a on the predetermined direction side in the longitudinal direction of the second projecting end part P2, and an inner peripheral part that is parallel to the second tangent line and separated from the second tangent line by a predetermined distance in a direction opposite to the predetermined direction. The total area of the crimping parts 9 included in the second U-shaped part SL1 arranged in the region L between the second parallel lines in contact with P2b is defined as a second crimping part area.

また、第３突端部Ｐ３における長手方向の所定方向側における外周部Ｐ３ａに接する第３接線と、第３接線に平行で第３接線から所定方向とは反対の方向に所定距離だけ離間して内周部Ｐ３ｂに接する第３平行線との間である領域Ｍに配置される第３Ｕ字部ＳＭ１に含まれる圧着部９の面積の総和を第１圧着部面積とする。ここで、帯状の領域Ｋ、Ｌ、Ｍの長手方向における幅は同一である。   In addition, the third tangent line that is in contact with the outer peripheral portion P3a on the predetermined direction side in the longitudinal direction of the third protruding end portion P3 is parallel to the third tangent line and is separated from the third tangent line by a predetermined distance in a direction opposite to the predetermined direction. The total area of the crimping parts 9 included in the third U-shaped part SM1 disposed in the region M between the third parallel line in contact with the peripheral part P3b is defined as a first crimping part area. Here, the widths in the longitudinal direction of the band-like regions K, L, and M are the same.

図１６に示すように、本実施形態において、第１圧着部面積は、第２圧着部面積よりも小さい。また、第３圧着部面積は、第１圧着部面積及び第２圧着部面積よりも大きい。   As shown in FIG. 16, in the present embodiment, the first pressure-bonding area is smaller than the second pressure-bonding area. Moreover, the area of the third pressure bonding part is larger than the area of the first pressure bonding part and the second pressure bonding part.

また、図１６に示すように、第１突端部Ｐ１近傍に配置される圧着部９の圧着部幅Ｗ１は、第２突端部Ｐ２の近傍に配置される圧着部９の圧着部幅Ｗ２よりも狭い。第３突端部Ｐ３の近傍に配置される圧着部９の圧着部幅Ｗ３は、圧着部幅Ｗ１及び圧着部幅Ｗ２よりも広い。   Further, as shown in FIG. 16, the crimping portion width W1 of the crimping portion 9 disposed in the vicinity of the first protruding end portion P1 is larger than the crimping portion width W2 of the crimping portion 9 disposed in the vicinity of the second projecting end portion P2. narrow. The crimping part width W3 of the crimping part 9 arranged in the vicinity of the third protrusion P3 is wider than the crimping part width W1 and the crimping part width W2.

このように、第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２及び第３Ｕ字部Ｕ３における突端部近傍に配置される圧着部９の大きさや、所定領域Ｋ、Ｌ、Ｍに配置される圧着部９における面積の総和である第１圧着部面積、第２圧着部面積、第３圧着部面積を調整することで、例えば、圧着処理時における各圧着部９に加えられる圧力を調整することができる。   Thus, the size of the crimping portion 9 disposed in the vicinity of the protruding end portion in the first U-shaped portion U1, the second U-shaped portion U2, and the third U-shaped portion U3, and the crimping portion 9 disposed in the predetermined regions K, L, and M. By adjusting the area of the first pressure bonding part, the second pressure bonding part area, and the third pressure bonding part area, which are the sum of the areas, the pressure applied to each pressure bonding part 9 during the pressure bonding process can be adjusted, for example.

また、上述の各圧着部幅Ｗ１、Ｗ２、Ｗ３だけでなく、圧着部高さＨ１、Ｈ２、Ｈ３を調整することもできる。これにより、第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２、第３Ｕ字部Ｕ３を構成する防漏溝１００における第１突端部Ｐ１、第２突端部Ｐ２、第３突端部Ｐ３近傍の太さを調整することができ、結果として上述した第１面積、第２面積、第３面積を調整することができる。これにより、例えば、圧着処理時における各圧着部９に加えられる圧力を調整することができる。   Moreover, not only the above-mentioned crimping part widths W1, W2, and W3 but also the crimping part heights H1, H2, and H3 can be adjusted. As a result, the thickness of the leak-proof groove 100 constituting the first U-shaped portion U1, the second U-shaped portion U2, and the third U-shaped portion U3 is determined in the vicinity of the first protruding end P1, the second protruding end P2, and the third protruding end P3. As a result, the first area, the second area, and the third area described above can be adjusted. Thereby, the pressure applied to each crimping | compression-bonding part 9 at the time of a crimping | compression-bonding process can be adjusted, for example.

また、本実施形態において一定間隔とした圧着部９どうしの間隔を調整することもできる。これにより、第１圧着部面積、第２圧着部面積、第３圧着部面積を調整することができる。その結果、例えば、圧着処理時における各圧着部９に加えられる圧力を調整することができる。   Moreover, the space | interval of the crimping | compression-bonding parts 9 made into the fixed space | interval in this embodiment can also be adjusted. Thereby, a 1st crimping | compression-bonding part area, a 2nd crimping | compression-bonding part area, and a 3rd crimping | compression-bonding part area can be adjusted. As a result, for example, the pressure applied to each crimping portion 9 during the crimping process can be adjusted.

更に、図１６に示すように、第１突端部Ｐ１における所定方向側の外周部Ｐ１ａに接する第１接線と、第１接線に平行で所定方向とは反対側の内周部Ｐ１ｂに接する第４接線との中間である第１中間線ＫＣにおける第１Ｕ字部Ｕ１と交差する第１交差部ＫＣ１の第１長さは、第２突端部Ｐ２における所定方向側の外周部Ｐ２ａに接する第２接線と、第２接線に平行で前記所定方向とは反対側の内周部Ｐ２ｂに接する第５接線との中間である第２中間線ＬＣにおける第２Ｕ字部Ｕ２と交差する第２交差部ＬＣ１の第２長さよりも短い。本実施形態において、第１長さは、第２長さよりも短いが、例えば、第１突端部Ｐの幅方向に形成される防漏溝１００の数と、第２突端部Ｐ２の幅方向に形成される防漏溝１００の数とが同じ場合には、第１長と第２長とを略同じ長さにすることもできる。   Further, as shown in FIG. 16, the first tangent line in contact with the outer peripheral part P1a on the predetermined direction side in the first protrusion P1 and the fourth tangent line in parallel with the first tangent line and in contact with the inner peripheral part P1b opposite to the predetermined direction. The first length of the first intersecting portion KC1 that intersects the first U-shaped portion U1 in the first intermediate line KC that is intermediate to the tangent is the second tangent that is in contact with the outer peripheral portion P2a on the predetermined direction side of the second protruding end P2. Of the second intersection portion LC1 that intersects the second U-shaped portion U2 in the second intermediate line LC that is intermediate between the second tangent line and the fifth tangent line that is parallel to the second tangent line and in contact with the inner peripheral portion P2b opposite to the predetermined direction Shorter than the second length. In the present embodiment, the first length is shorter than the second length. For example, the number of leakage prevention grooves 100 formed in the width direction of the first protruding end portion P and the width direction of the second protruding end portion P2 are the same. When the number of leakage prevention grooves 100 formed is the same, the first length and the second length can be made substantially the same length.

また、第３突端部Ｐ３における所定方向側の外周部Ｐ３ａに接する第３接線と、第３接線に平行で所定方向とは反対側の内周部Ｐ３ｂに接する第５接線との中間である第３中間線ＭＣにおける第３Ｕ字部Ｕ３と交差する第３交差部ＭＣ１の第３長さは、第１長さ及び第２長さよりも長い。   In addition, the third tangent line that is in contact with the outer peripheral part P3a on the predetermined direction side in the third protruding end part P3 and the fifth tangent line that is parallel to the third tangent line and in contact with the inner peripheral part P3b on the opposite side to the predetermined direction are intermediate. The third length of the third intersection MC1 that intersects the third U-shaped portion U3 in the third intermediate line MC is longer than the first length and the second length.

上述のように、第１中間線ＫＣ、第２中間線ＬＣ、第３中間線ＭＣにおける各Ｕ字部と交差する第１交差部ＫＣ１の第１長さ、第２交差部ＬＣ１の第２長さ、第３交差部ＭＣ１の第３長さを調整することで、例えば、圧着処理時における各圧着部９に加えられる圧力、具体的には幅方向における線圧を調整することができる。   As described above, the first length of the first intersection KC1 that intersects each U-shaped portion in the first intermediate line KC, the second intermediate line LC, and the third intermediate line MC, and the second length of the second intersection LC1 By adjusting the third length of the third intersecting portion MC1, for example, the pressure applied to each crimping portion 9 during the crimping process, specifically, the linear pressure in the width direction can be adjusted.

第１中間線ＫＣにおける第１Ｕ字部Ｕ１及び第１突端部Ｐ１の幅方向に形成される防漏溝１００と交差する複数の交差部ＫＣ１、ＫＣ２、ＫＣ３、ＫＣ４、ＫＣ５におけるそれぞれの長さの合計長さである第４長さは、第２中間線ＬＣにおける第２Ｕ字部Ｕ２及び第２突端部Ｐ２の幅方向に形成される防漏溝１００と交差する複数の交差部ＬＣ１、ＬＣ２、ＬＣ３におけるそれぞれの長さの合計長さである第５長さと、略同じ長さであることが好ましい。これにより、例えば、圧着部９を形成する際に加えられる第１突端部Ｐ１の幅方向における圧力と、第２突端部Ｐ２の幅方向における圧力とを略同一にすることができる。具体的には、幅方向における線圧を略同一にすることができる。   The length of each of the plurality of intersecting portions KC1, KC2, KC3, KC4, KC5 intersecting with the leakage preventing groove 100 formed in the width direction of the first U-shaped portion U1 and the first protruding end portion P1 in the first intermediate line KC. The fourth length, which is the total length, is a plurality of intersecting portions LC1, LC2, intersecting with the leakage preventing groove 100 formed in the width direction of the second U-shaped portion U2 and the second protruding end portion P2 in the second intermediate line LC. It is preferable that the length is substantially the same as the fifth length, which is the total length of the respective lengths in LC3. Thereby, for example, the pressure in the width direction of the first protruding end portion P1 applied when forming the crimping portion 9 and the pressure in the width direction of the second protruding end portion P2 can be made substantially the same. Specifically, the linear pressure in the width direction can be made substantially the same.

また、第３交差部ＭＣ１の第３長さは、上記の第４長さ及び／又は第５長さと略同じで長さである場合が好ましい。これにより、例えば、圧着部９を形成する際に加えられる第１突端部Ｐ１の幅方向における圧力と、第２突端部Ｐ２の幅方向における圧力とを略同一にすることができる。具体的には、幅方向における線圧を略同一にすることができる。   In addition, it is preferable that the third length of the third intersection MC1 is substantially the same as the fourth length and / or the fifth length. Thereby, for example, the pressure in the width direction of the first protruding end portion P1 applied when forming the crimping portion 9 and the pressure in the width direction of the second protruding end portion P2 can be made substantially the same. Specifically, the linear pressure in the width direction can be made substantially the same.

［２．２］第４実施形態及び第５実施形態
図６及び図７により第４実施形態及び第５実施形態における吸収性物品を説明する。図６及び図７においては、本発明の特徴を理解しやすくするため防漏溝部１０を中心に図示する。図６に示すように、第４実施形態の吸収性物品１Ｃは、所定形状に形成された防漏溝１００により形成される防漏溝部１０を備える。この所定形状に形成された防漏溝１００は、圧着部９が連続して該所定形状を形成するように配置されることで形成される。 [2.2] Fourth Embodiment and Fifth Embodiment The absorbent article in the fourth embodiment and the fifth embodiment will be described with reference to FIGS. 6 and 7, the leak-proof groove portion 10 is mainly shown for easy understanding of the features of the present invention. As shown in FIG. 6, the absorbent article 1 </ b> C of the fourth embodiment includes a leak-proof groove portion 10 formed by a leak-proof groove 100 formed in a predetermined shape. The leak-proof groove 100 formed in this predetermined shape is formed by arranging the crimping portions 9 so as to continuously form the predetermined shape.

図６に示すように、防漏溝部１０は、防漏溝１００が略Ｕ字状に形成される第１Ｕ字部Ｕ１と、第２Ｕ字部Ｕ２と、第３Ｕ字部Ｕ３とを備える。該第２Ｕ字部Ｕ２は第１Ｕ字部Ｕ１における長手方向における所定方向側に形成され、同様に、第３Ｕ字部Ｕ３は第２Ｕ字部Ｕ２の長手方向における所定方向側に形成される。本実施形態における吸収性物品１Ｃは後述する第５実施形態における吸収性物品１Ｄと類似するが、第２Ｕ字部Ｕ２における幅方向の端部が第１突端部Ｐ１よりも長手方向における上側にあるため、第２Ｕ字部Ｕ２における第２突端部Ｐ２の幅方向に形成される防漏溝１００の本数が第５実施形態の場合よりも多くなる。   As shown in FIG. 6, the leak-proof groove 10 includes a first U-shaped part U1, a second U-shaped part U2, and a third U-shaped part U3 in which the leak-proof groove 100 is formed in a substantially U shape. The second U-shaped portion U2 is formed on the predetermined direction side in the longitudinal direction of the first U-shaped portion U1, and similarly, the third U-shaped portion U3 is formed on the predetermined direction side in the longitudinal direction of the second U-shaped portion U2. Absorbent article 1C in the present embodiment is similar to absorbent article 1D in the fifth embodiment to be described later, but the end portion in the width direction of second U-shaped portion U2 is on the upper side in the longitudinal direction from first protruding end portion P1. Therefore, the number of leak-proof grooves 100 formed in the width direction of the second protruding end portion P2 in the second U-shaped portion U2 is larger than that in the fifth embodiment.

吸収性物品１Ｃの長手方向における内側に形成される第１Ｕ字部Ｕ１は、該所定方向に突出する第１突端部Ｐ１を有する。そして、第１突端部Ｐ１の該吸収性物品１Ｃにおける幅方向に４本の防漏溝１００が形成される。   The first U-shaped portion U1 formed on the inner side in the longitudinal direction of the absorbent article 1C has a first protruding end portion P1 that protrudes in the predetermined direction. And the four leak-proof grooves 100 are formed in the width direction in this absorbent article 1C of the 1st protrusion part P1.

第１Ｕ字部Ｕ１の所定方向側に形成される第２Ｕ字部Ｕ２は、該所定方向に突出する第２突端部Ｐ２を有する。そして、第２突端部Ｐ２の幅方向に２本の防漏溝１００が形成される。ここで、第１Ｕ字部Ｕ１及び第２Ｕ字部Ｕ２は、その側部が幅方向における外側ではなく内側に膨らむような略Ｕ字状に形成される。   The 2nd U-shaped part U2 formed in the predetermined direction side of the 1st U-shaped part U1 has the 2nd protrusion end part P2 which protrudes in this predetermined direction. Then, two leak-proof grooves 100 are formed in the width direction of the second protruding end portion P2. Here, the 1st U-shaped part U1 and the 2nd U-shaped part U2 are formed in the substantially U shape that the side part swells not in the outer side in the width direction but inward.

第２Ｕ字部Ｕ２の所定方向側に形成され長手方向において最も外側に形成される第３Ｕ字部Ｕ３は、該所定方向に突出する第３突端部Ｐ３を有する。そして、第３突端部Ｐ３の幅方向には防漏溝１００は形成されていない。   The third U-shaped portion U3 formed on the second U-shaped portion U2 in the predetermined direction and formed on the outermost side in the longitudinal direction has a third protruding end portion P3 protruding in the predetermined direction. And the leak-proof groove | channel 100 is not formed in the width direction of the 3rd protrusion part P3.

そして、図６に示すように、本実施形態において第１面積は、第２面積よりも小さくなるよう形成される。更には、第３面積は、第１面積及び第２面積よりも大きくなるよう形成される。   And as shown in FIG. 6, in this embodiment, a 1st area is formed so that it may become smaller than a 2nd area. Furthermore, the third area is formed to be larger than the first area and the second area.

更に、第１面積と領域Ｋに配置される第１突端部Ｐ１の幅方向に形成される防漏溝ＳＫ２、ＳＫ３、ＳＫ４、ＳＫ５との面積の総和を第４面積とする。また、第２面積と領域Ｌに配置される第２突端部Ｐ２の幅方向に形成される防漏溝ＳＬ２、ＳＬ３との面積の総和を第５面積とする。そして、この第４面積と第５面積とが略同じになるように第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２等を形成することが好ましい。   Furthermore, the sum of the areas of the first area and the leakage prevention grooves SK2, SK3, SK4, and SK5 formed in the width direction of the first protrusion P1 disposed in the region K is defined as a fourth area. Further, the sum of the areas of the second area and the leakage prevention grooves SL2 and SL3 formed in the width direction of the second protrusion P2 disposed in the region L is defined as a fifth area. The first U-shaped portion U1, the second U-shaped portion U2, and the like are preferably formed so that the fourth area and the fifth area are substantially the same.

また、第３面積が、第４面積及び／又は第５面積と略同じになるように第３Ｕ字部Ｕ３を形成することが好ましい。   The third U-shaped portion U3 is preferably formed so that the third area is substantially the same as the fourth area and / or the fifth area.

図６に示すように、第１Ｕ字部Ｕ１の第１突端部Ｐ１における不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２Ｕ字部Ｕ２の第２突端部における不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２より小さくなるよう形成されている。   As shown in FIG. 6, the first radius of curvature R1 in the inner peripheral portion P1b (not shown) in the first protruding end portion P1 of the first U-shaped portion U1 is the inner periphery not shown in the second protruding end portion of the second U-shaped portion U2. It is formed to be smaller than the second curvature radius R2 in the part P2b.

言い換えると、第１突端部Ｐ１の幅方向に形成される防漏溝１００が４本である第１Ｕ字部Ｕ１の前記内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも小さい。   In other words, the first radius of curvature R1 in the inner peripheral portion P1b of the first U-shaped portion U1 having four leakage prevention grooves 100 formed in the width direction of the first protruding end portion P1 is the width of the second protruding end portion P2. The leakage prevention groove 100 formed in the direction is smaller than the second curvature radius R2 in the inner peripheral portion P2b of the second U-shaped portion U2 having two.

また、第３Ｕ字部Ｕ３の第３突端部Ｐ３における不図示の内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１曲率半径Ｒ１及び／又は第２曲率半径Ｒ２より大きくなるよう形成されている。   Further, a third curvature radius R3 in an inner peripheral portion P3b (not shown) in the third protrusion P3 of the third U-shaped portion U3 is formed to be larger than the first curvature radius R1 and / or the second curvature radius R2. .

言い換えると、第３突端部Ｐ３の幅方向に防漏溝１００が形成されない第３Ｕ字部Ｕ３の前記内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１突端部Ｐ１の幅方向に形成される防漏溝１００が４本である第１Ｕ字部Ｕ１の前記内周部Ｐ１ｂにおける第１曲率半径Ｒ１及び／又は第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも大きい。   In other words, the third radius of curvature R3 in the inner peripheral portion P3b of the third U-shaped portion U3 in which the leakage preventing groove 100 is not formed in the width direction of the third protruding end portion P3 is formed in the width direction of the first protruding end portion P1. There are two leakage prevention grooves 100 formed in the width direction of the first curvature radius R1 and / or the second protruding end portion P2 in the inner peripheral portion P1b of the first U-shaped portion U1 having four leakage prevention grooves 100. It is larger than the second curvature radius R2 in the inner peripheral portion P2b of the second U-shaped portion U2.

図７に示すように、第５実施形態における吸収性物品１Ｄは、第４実施形態における吸収性物品１Ｃと類似する吸収性物品であり、第１突端部Ｐ１の幅方向に形成される防漏溝１００の本数が異なる吸収性物品である。   As shown in FIG. 7, the absorbent article 1D in the fifth embodiment is an absorbent article similar to the absorbent article 1C in the fourth embodiment, and is leak-proof formed in the width direction of the first protrusion P1. The absorbent article has a different number of grooves 100.

吸収性物品１Ｄの長手方向における内側に形成される第１Ｕ字部Ｕ１は、該所定方向に突出する第１突端部Ｐ１を有する。そして、第１突端部Ｐ１の該吸収性物品１Ｄにおける幅方向に２本の防漏溝１００が形成される。   The first U-shaped portion U1 formed on the inner side in the longitudinal direction of the absorbent article 1D has a first protruding end portion P1 that protrudes in the predetermined direction. And the two leak-proof grooves 100 are formed in the width direction in this absorbent article 1D of the 1st protrusion part P1.

第１Ｕ字部Ｕ１の所定方向側に形成される第２Ｕ字部Ｕ２は、該所定方向に突出する第２突端部Ｐ２を有する。そして、第２突端部Ｐ２の幅方向に２本の防漏溝１００が形成される。   The 2nd U-shaped part U2 formed in the predetermined direction side of the 1st U-shaped part U1 has the 2nd protrusion end part P2 which protrudes in this predetermined direction. Then, two leak-proof grooves 100 are formed in the width direction of the second protruding end portion P2.

第２Ｕ字部Ｕ２の所定方向側に形成され長手方向において最も外側に形成される第３Ｕ字部Ｕ３は、該所定方向に突出する第３突端部Ｐ３を有する。そして、第３突端部Ｐ３の幅方向には防漏溝１００は形成されていない。   The third U-shaped portion U3 formed on the second U-shaped portion U2 in the predetermined direction and formed on the outermost side in the longitudinal direction has a third protruding end portion P3 protruding in the predetermined direction. And the leak-proof groove | channel 100 is not formed in the width direction of the 3rd protrusion part P3.

そして、図７に示すように、本実施形態において第１面積は、第２面積よりも小さくなるよう形成される。更には、第３面積は、第１面積及び第２面積よりも大きくなるよう形成される。   Then, as shown in FIG. 7, in the present embodiment, the first area is formed to be smaller than the second area. Furthermore, the third area is formed to be larger than the first area and the second area.

更に、第１面積と領域Ｋに配置される第１突端部の幅方向に形成される防漏溝ＳＫ２、ＳＫ３との面積の総和を第４面積とする。また、第２面積と領域Ｌに配置される第２突端部の幅方向に形成される防漏溝ＳＬ２、ＳＬ３との面積の総和を第５面積とする。そして、この第４面積と第５面積とが略同じになるように第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２等を形成することが好ましい。   Further, the sum of the areas of the first area and the leakage preventing grooves SK2 and SK3 formed in the width direction of the first protrusions disposed in the region K is defined as a fourth area. Further, the sum of the areas of the second area and the leakage prevention grooves SL2 and SL3 formed in the width direction of the second protrusions disposed in the region L is defined as a fifth area. The first U-shaped portion U1, the second U-shaped portion U2, and the like are preferably formed so that the fourth area and the fifth area are substantially the same.

また、第３面積が、第４面積及び／又は第５面積と略同じになるように第３Ｕ字部Ｕ３を形成することが好ましい。   The third U-shaped portion U3 is preferably formed so that the third area is substantially the same as the fourth area and / or the fifth area.

図７に示すように、第１Ｕ字部Ｕ１の第１突端部Ｐ１における不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２Ｕ字部Ｕ２の第２突端部における不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２より小さくなるよう形成されている。   As shown in FIG. 7, the first radius of curvature R1 in the inner peripheral portion P1b (not shown) in the first protruding end portion P1 of the first U-shaped portion U1 is the inner periphery not shown in the second protruding end portion of the second U-shaped portion U2. It is formed to be smaller than the second curvature radius R2 in the part P2b.

言い換えると、第１突端部Ｐ１の幅方向に形成される防漏溝１００が２本である第１Ｕ字部Ｕ１の前記内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも小さい。   In other words, the first radius of curvature R1 in the inner peripheral portion P1b of the first U-shaped portion U1 having two leakage prevention grooves 100 formed in the width direction of the first protruding end portion P1 is the width of the second protruding end portion P2. The leakage prevention groove 100 formed in the direction is smaller than the second curvature radius R2 in the inner peripheral portion P2b of the second U-shaped portion U2 having two.

また、第３Ｕ字部Ｕ３の第３突端部Ｐ３における不図示の内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１曲率半径Ｒ１及び／又は第２曲率半径Ｒ２より大きくなるよう形成されている。   Further, a third curvature radius R3 in an inner peripheral portion P3b (not shown) in the third protrusion P3 of the third U-shaped portion U3 is formed to be larger than the first curvature radius R1 and / or the second curvature radius R2. .

言い換えると、第３突端部Ｐ３の幅方向に防漏溝１００が形成されない第３Ｕ字部Ｕ３の前記内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１突端部Ｐ１の幅方向に形成される防漏溝１００が２本である第１Ｕ字部Ｕ１の前記内周部Ｐ１ｂにおける第１曲率半径Ｒ１及び／又は第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも大きい。   In other words, the third radius of curvature R3 in the inner peripheral portion P3b of the third U-shaped portion U3 in which the leakage preventing groove 100 is not formed in the width direction of the third protruding end portion P3 is formed in the width direction of the first protruding end portion P1. There are two leak-proof grooves 100 formed in the width direction of the first curvature radius R1 and / or the second projecting end portion P2 in the inner peripheral portion P1b of the first U-shaped portion U1 having two leak-proof grooves 100. It is larger than the second curvature radius R2 in the inner peripheral portion P2b of the second U-shaped portion U2.

［２．３］第６実施形態
図８により第６実施形態における吸収性物品を説明する。図８においては、本発明の特徴を理解しやすくするため防漏溝部１０を中心に図示する。図８に示すように、第６実施形態の吸収性物品１Ｅは、所定形状に形成された防漏溝１００により形成される防漏溝部１０を備える。この所定形状に形成された防漏溝１００は、圧着部９が連続して該所定形状を形成するように配置されることで形成される。 [2.3] Sixth Embodiment An absorbent article according to the sixth embodiment will be described with reference to FIG. In FIG. 8, in order to facilitate understanding of the features of the present invention, the leak-proof groove portion 10 is mainly illustrated. As shown in FIG. 8, the absorbent article 1E of 6th Embodiment is equipped with the leak-proof groove part 10 formed of the leak-proof groove 100 formed in the predetermined shape. The leak-proof groove 100 formed in this predetermined shape is formed by arranging the crimping portions 9 so as to continuously form the predetermined shape.

図８に示すように、防漏溝部１０は、防漏溝１００が略Ｕ字状に形成される第１Ｕ字部Ｕ１と、第２Ｕ字部Ｕ２と、第３Ｕ字部Ｕ３とを備える。該第２Ｕ字部Ｕ２は第１Ｕ字部Ｕ１における長手方向における所定方向側に形成され、同様に、第３Ｕ字部Ｕ３は第２Ｕ字部Ｕ２の長手方向における所定方向側に形成される。本実施形態における第２Ｕ字部Ｕ２は、該第２Ｕ字部Ｕ２における幅の端部が、第１Ｕ字部Ｕ１における幅方向端部から第１突端部Ｐ１の間の所定位置に連続するように形成される。   As shown in FIG. 8, the leak-proof groove part 10 is provided with the 1st U-shaped part U1, the 2nd U-shaped part U2, and the 3rd U-shaped part U3 in which the leak-proof groove 100 is formed in a substantially U shape. The second U-shaped portion U2 is formed on the predetermined direction side in the longitudinal direction of the first U-shaped portion U1, and similarly, the third U-shaped portion U3 is formed on the predetermined direction side in the longitudinal direction of the second U-shaped portion U2. The second U-shaped portion U2 in the present embodiment is such that the end of the width of the second U-shaped portion U2 is continuous to a predetermined position between the width direction end of the first U-shaped portion U1 and the first protruding end P1. It is formed.

吸収性物品１Ｅの長手方向における内側に形成される第１Ｕ字部Ｕ１は、該所定方向に突出する第１突端部Ｐ１を有する。そして、第１突端部Ｐ１の該吸収性物品１Ｅにおける幅方向に４本の防漏溝１００が形成される。   The first U-shaped portion U1 formed on the inner side in the longitudinal direction of the absorbent article 1E has a first protruding end portion P1 that protrudes in the predetermined direction. And the four leak-proof grooves 100 are formed in the width direction in this absorbent article 1E of the 1st protrusion part P1.

第１Ｕ字部Ｕ１の所定方向側に形成される第２Ｕ字部Ｕ２は、該所定方向に突出する第２突端部Ｐ２を有する。そして、第２突端部Ｐ２の幅方向に２本の防漏溝１００が形成される。   The 2nd U-shaped part U2 formed in the predetermined direction side of the 1st U-shaped part U1 has the 2nd protrusion end part P2 which protrudes in this predetermined direction. Then, two leak-proof grooves 100 are formed in the width direction of the second protruding end portion P2.

第２Ｕ字部Ｕ２の所定方向側に形成され長手方向において最も外側に形成される第３Ｕ字部Ｕ３は、該所定方向に突出する第３突端部Ｐ３を有する。そして、第３突端部Ｐ３の幅方向には防漏溝１００は形成されていない。   The third U-shaped portion U3 formed on the second U-shaped portion U2 in the predetermined direction and formed on the outermost side in the longitudinal direction has a third protruding end portion P3 protruding in the predetermined direction. And the leak-proof groove | channel 100 is not formed in the width direction of the 3rd protrusion part P3.

そして、図８に示すように、本実施形態において第１面積は、第２面積よりも小さくなるよう形成される。更には、第３面積は、第１面積及び第２面積よりも大きくなるよう形成される。   And as shown in FIG. 8, in this embodiment, a 1st area is formed so that it may become smaller than a 2nd area. Furthermore, the third area is formed to be larger than the first area and the second area.

更に、第１面積と領域Ｋに配置される第１突端部の幅方向に形成される防漏溝ＳＫ２、ＳＫ３、ＳＫ４、ＳＫ５との面積の総和を第４面積とする。また、第２面積と領域Ｌに配置される第２突端部の幅方向に形成される防漏溝ＳＬ２、ＳＬ３との面積の総和を第５面積とする。そして、この第４面積と第５面積とが略同じになるように第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２等を形成することが好ましい。   Furthermore, the sum of the areas of the first area and the leakage prevention grooves SK2, SK3, SK4, and SK5 formed in the width direction of the first protrusions disposed in the region K is defined as a fourth area. Further, the sum of the areas of the second area and the leakage prevention grooves SL2 and SL3 formed in the width direction of the second protrusions disposed in the region L is defined as a fifth area. The first U-shaped portion U1, the second U-shaped portion U2, and the like are preferably formed so that the fourth area and the fifth area are substantially the same.

また、第３面積が、第４面積及び／又は第５面積と略同じになるように第３Ｕ字部Ｕ３を形成することが好ましい。   The third U-shaped portion U3 is preferably formed so that the third area is substantially the same as the fourth area and / or the fifth area.

図８に示すように、第１Ｕ字部Ｕ１の第１突端部Ｐ１における不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２Ｕ字部Ｕ２の第２突端部における不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２より小さくなるよう形成されている。   As shown in FIG. 8, the first radius of curvature R1 in the inner peripheral portion P1b (not shown) in the first protruding end portion P1 of the first U-shaped portion U1 is the inner periphery not shown in the second protruding end portion of the second U-shaped portion U2. It is formed to be smaller than the second curvature radius R2 in the part P2b.

言い換えると、第１突端部Ｐ１の幅方向に形成される防漏溝１００が４本である第１Ｕ字部Ｕ１の前記不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも小さい。   In other words, the first curvature radius R1 in the inner peripheral portion P1b (not shown) of the first U-shaped portion U1 having four leakage preventing grooves 100 formed in the width direction of the first protruding end portion P1 is the second protruding end portion. The leakage preventing groove 100 formed in the width direction of P2 is smaller than the second curvature radius R2 in the inner peripheral portion P2b (not shown) of the second U-shaped portion U2 having two.

また、第３Ｕ字部Ｕ３の第３突端部Ｐ３における不図示の内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１曲率半径Ｒ１及び／又は第２曲率半径Ｒ２より大きくなるよう形成されている。   Further, a third curvature radius R3 in an inner peripheral portion P3b (not shown) in the third protrusion P3 of the third U-shaped portion U3 is formed to be larger than the first curvature radius R1 and / or the second curvature radius R2. .

言い換えると、第３突端部Ｐ３の幅方向に防漏溝１００が形成されない第３Ｕ字部Ｕ３の前記不図示の内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１突端部Ｐ１の幅方向に形成される防漏溝１００が４本である第１Ｕ字部Ｕ１の前記不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１及び／又は第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも大きい。   In other words, the third curvature radius R3 in the inner peripheral portion P3b (not shown) of the third U-shaped portion U3 in which the leakage prevention groove 100 is not formed in the width direction of the third protruding end portion P3 is in the width direction of the first protruding end portion P1. The leakage prevention grooves formed in the width direction of the first curvature radius R1 and / or the second protrusion P2 in the inner peripheral portion P1b (not shown) of the first U-shaped portion U1 having four leakage prevention grooves 100 formed. 100 is larger than 2nd curvature radius R2 in the said inner peripheral part P2b not shown of the 2nd U-shaped part U2 which is two.

［２．４］第７実施形態
図９により第７実施形態における吸収性物品を説明する。図９においては、本発明の特徴を理解しやすくするため防漏溝部１０を中心に図示する。図９に示すように、第７実施形態の吸収性物品１Ｆは、所定形状に形成された防漏溝１００により形成される防漏溝部１０を備える。この所定形状に形成された防漏溝１００は、圧着部９が連続して該所定形状を形成するように配置されることで形成される。 [2.4] Seventh Embodiment An absorbent article in the seventh embodiment will be described with reference to FIG. In FIG. 9, in order to facilitate understanding of the features of the present invention, the leak-proof groove 10 is mainly shown. As shown in FIG. 9, the absorbent article 1F of 7th Embodiment is equipped with the leak-proof groove part 10 formed of the leak-proof groove 100 formed in the predetermined shape. The leak-proof groove 100 formed in this predetermined shape is formed by arranging the crimping portions 9 so as to continuously form the predetermined shape.

図９に示すように、防漏溝部１０は、防漏溝１００が略Ｕ字状に形成される第１Ｕ字部Ｕ１と、第２Ｕ字部Ｕ２と、第３Ｕ字部Ｕ３とを備える。該第２Ｕ字部Ｕ２は第１Ｕ字部Ｕ１における長手方向における所定方向側に形成され、同様に、第３Ｕ字部Ｕ３は第２Ｕ字部Ｕ２の長手方向における所定方向側に形成される。本実施形態における第３Ｕ字部Ｕ２は、該第３Ｕ字部Ｕ２における幅の端部が他の防漏溝１００と連続せずに単独で形成される。   As shown in FIG. 9, the leak-proof groove 10 includes a first U-shaped part U1, a second U-shaped part U2, and a third U-shaped part U3 in which the leak-proof groove 100 is formed in a substantially U shape. The second U-shaped portion U2 is formed on the predetermined direction side in the longitudinal direction of the first U-shaped portion U1, and similarly, the third U-shaped portion U3 is formed on the predetermined direction side in the longitudinal direction of the second U-shaped portion U2. The third U-shaped portion U <b> 2 in the present embodiment is formed independently without the width end portion of the third U-shaped portion U <b> 2 being continuous with the other leak-proof grooves 100.

吸収性物品１Ｆの長手方向における内側に形成される第１Ｕ字部Ｕ１は、該所定方向に突出する第１突端部Ｐ１を有する。そして、第１突端部Ｐ１の該吸収性物品１Ｆにおける幅方向に４本の防漏溝１００が形成される。   The first U-shaped portion U1 formed on the inner side in the longitudinal direction of the absorbent article 1F has a first protruding end portion P1 protruding in the predetermined direction. And the four leak-proof grooves 100 are formed in the width direction in this absorbent article 1F of the 1st protrusion part P1.

第１Ｕ字部Ｕ１の所定方向側に形成され、第２Ｕ字部Ｕ２における幅の端部が第１Ｕ字部Ｕ１における幅方向端部から第１突端部Ｐ１の間の所定位置に連続するように形成される第２Ｕ字部Ｕ２は、該所定方向に突出する第２突端部Ｐ２を有する。そして、第２突端部Ｐ２の幅方向に２本の防漏溝１００が形成される。   It is formed on the predetermined direction side of the first U-shaped part U1, and the end of the width of the second U-shaped part U2 is continuous to the predetermined position between the end of the first U-shaped part U1 in the width direction and the first protruding end P1. The formed second U-shaped portion U2 has a second protruding end portion P2 protruding in the predetermined direction. Then, two leak-proof grooves 100 are formed in the width direction of the second protruding end portion P2.

第２Ｕ字部Ｕ２の所定方向側に形成され長手方向において最も外側に形成される第３Ｕ字部Ｕ３は、該所定方向に突出する第３突端部Ｐ３を有する。そして、第３突端部Ｐ３の幅方向には防漏溝１００は形成されていない。   The third U-shaped portion U3 formed on the second U-shaped portion U2 in the predetermined direction and formed on the outermost side in the longitudinal direction has a third protruding end portion P3 protruding in the predetermined direction. And the leak-proof groove | channel 100 is not formed in the width direction of the 3rd protrusion part P3.

そして、図９に示すように、本実施形態において第１面積は、第２面積よりも小さくなるよう形成される。更には、第３面積は、第１面積及び第２面積よりも大きくなるよう形成される。   And as shown in FIG. 9, in this embodiment, a 1st area is formed so that it may become smaller than a 2nd area. Furthermore, the third area is formed to be larger than the first area and the second area.

更に、第１面積と領域Ｋに配置される第１突端部Ｐ１の幅方向に形成される防漏溝ＳＫ２、ＳＫ３、ＳＫ４、ＳＫ５との面積の総和を第４面積とする。また、第２面積と領域Ｌに配置される第２突端部Ｐ２の幅方向に形成される防漏溝ＳＬ２、ＳＬ３との面積の総和を第５面積とする。そして、この第４面積と第５面積とが略同じになるように第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２等を形成することが好ましい。   Furthermore, the sum of the areas of the first area and the leakage prevention grooves SK2, SK3, SK4, and SK5 formed in the width direction of the first protrusion P1 disposed in the region K is defined as a fourth area. Further, the sum of the areas of the second area and the leakage prevention grooves SL2 and SL3 formed in the width direction of the second protrusion P2 disposed in the region L is defined as a fifth area. The first U-shaped portion U1, the second U-shaped portion U2, and the like are preferably formed so that the fourth area and the fifth area are substantially the same.

また、第３面積が、第４面積及び／又は第５面積と略同じになるように第３Ｕ字部Ｕ３を形成することが好ましい。   The third U-shaped portion U3 is preferably formed so that the third area is substantially the same as the fourth area and / or the fifth area.

図９に示すように、第１Ｕ字部Ｕ１の第１突端部Ｐ１における不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２Ｕ字部Ｕ２の第２突端部における不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２より小さくなるよう形成されている。   As shown in FIG. 9, the first radius of curvature R1 in the inner peripheral portion P1b (not shown) in the first protruding end portion P1 of the first U-shaped portion U1 is the inner periphery not shown in the second protruding end portion of the second U-shaped portion U2. It is formed to be smaller than the second curvature radius R2 in the part P2b.

言い換えると、第１突端部Ｐ１の幅方向に形成される防漏溝１００が４本である第１Ｕ字部Ｕ１の前記不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも小さい。   In other words, the first curvature radius R1 in the inner peripheral portion P1b (not shown) of the first U-shaped portion U1 having four leakage preventing grooves 100 formed in the width direction of the first protruding end portion P1 is the second protruding end portion. The leakage preventing groove 100 formed in the width direction of P2 is smaller than the second curvature radius R2 in the inner peripheral portion P2b (not shown) of the second U-shaped portion U2 having two.

また、第３Ｕ字部Ｕ３の第３突端部Ｐ３における不図示の内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１曲率半径Ｒ１及び／又は第２曲率半径Ｒ２より大きくなるよう形成されている。   Further, a third curvature radius R3 in an inner peripheral portion P3b (not shown) in the third protrusion P3 of the third U-shaped portion U3 is formed to be larger than the first curvature radius R1 and / or the second curvature radius R2. .

言い換えると、第３突端部Ｐ３の幅方向に防漏溝１００が形成されない第３Ｕ字部Ｕ３の前記不図示の内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１突端部Ｐ１の幅方向に形成される防漏溝１００が４本である第１Ｕ字部Ｕ１の前記不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１及び／又は第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも大きい。   In other words, the third curvature radius R3 in the inner peripheral portion P3b (not shown) of the third U-shaped portion U3 in which the leakage prevention groove 100 is not formed in the width direction of the third protruding end portion P3 is in the width direction of the first protruding end portion P1. The leakage prevention grooves formed in the width direction of the first curvature radius R1 and / or the second protrusion P2 in the inner peripheral portion P1b (not shown) of the first U-shaped portion U1 having four leakage prevention grooves 100 formed. 100 is larger than 2nd curvature radius R2 in the said inner peripheral part P2b not shown of the 2nd U-shaped part U2 which is two.

［２．５］第８実施形態
図１０により第８実施形態における吸収性物品を説明する。図１０においては、本発明の特徴を理解しやすくするため防漏溝部１０を中心に図示する。図１０に示すように、第８実施形態の吸収性物品１Ｇは、所定形状に形成された防漏溝１００により形成される防漏溝部１０を備える。この所定形状に形成された防漏溝１００は、圧着部９が連続して該所定形状を形成するように配置されることで形成される。 [2.5] Eighth Embodiment An absorbent article according to the eighth embodiment will be described with reference to FIG. In FIG. 10, in order to facilitate understanding of the features of the present invention, the leak-proof groove portion 10 is mainly illustrated. As shown in FIG. 10, the absorbent article 1 </ b> G of the eighth embodiment includes a leak-proof groove portion 10 formed by a leak-proof groove 100 formed in a predetermined shape. The leak-proof groove 100 formed in this predetermined shape is formed by arranging the crimping portions 9 so as to continuously form the predetermined shape.

図１０に示すように、防漏溝部１０は、防漏溝１００が略Ｕ字状に形成される第１Ｕ字部Ｕ１と、第２Ｕ字部Ｕ２と、を備える。該第２Ｕ字部Ｕ２は第１Ｕ字部Ｕ１における長手方向における所定方向側に形成される。該第１Ｕ字部Ｕ１及び第２Ｕ字部Ｕ２における幅方向の両外側には長手方向に延びるように防漏溝１００が形成される。本実施形態においては、第３Ｕ字部Ｕ３は形成されない。   As shown in FIG. 10, the leak-proof groove 10 includes a first U-shaped part U <b> 1 in which the leak-proof groove 100 is formed in a substantially U shape, and a second U-shaped part U <b> 2. The second U-shaped portion U2 is formed on a predetermined direction side in the longitudinal direction of the first U-shaped portion U1. Leakproof grooves 100 are formed on both outer sides in the width direction of the first U-shaped portion U1 and the second U-shaped portion U2 so as to extend in the longitudinal direction. In the present embodiment, the third U-shaped portion U3 is not formed.

吸収性物品１Ｇの長手方向における内側に形成される第１Ｕ字部Ｕ１は、該所定方向に突出する第１突端部Ｐ１を有する。そして、第１突端部Ｐ１の該吸収性物品１Ｇにおける幅方向に４本の防漏溝１００が形成される。   The first U-shaped portion U1 formed on the inner side in the longitudinal direction of the absorbent article 1G has a first protruding end portion P1 protruding in the predetermined direction. And the four leak-proof grooves 100 are formed in the width direction in this absorbent article 1G of the 1st protrusion part P1.

第１Ｕ字部Ｕ１の所定方向側に形成される第２Ｕ字部Ｕ２は、該所定方向に突出する第２突端部Ｐ２を有する。そして、第２突端部Ｐ２の幅方向に２本の防漏溝１００が形成される。   The 2nd U-shaped part U2 formed in the predetermined direction side of the 1st U-shaped part U1 has the 2nd protrusion end part P2 which protrudes in this predetermined direction. Then, two leak-proof grooves 100 are formed in the width direction of the second protruding end portion P2.

そして、図１０に示すように、本実施形態において第１面積は、第２面積よりも小さくなるよう形成される。   And as shown in FIG. 10, in this embodiment, a 1st area is formed so that it may become smaller than a 2nd area.

更に、第１面積と領域Ｋに配置される第１突端部Ｐ１の幅方向に形成される防漏溝ＳＫ２、ＳＫ３、ＳＫ４、ＳＫ５との面積の総和を第４面積とする。また、第２面積と領域Ｌに配置される第２突端部Ｐ２の幅方向に形成される防漏溝ＳＬ２、ＳＬ３との面積の総和を第５面積とする。そして、この第４面積と第５面積とが略同じになるように第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２等を形成することが好ましい。   Furthermore, the sum of the areas of the first area and the leakage prevention grooves SK2, SK3, SK4, and SK5 formed in the width direction of the first protrusion P1 disposed in the region K is defined as a fourth area. Further, the sum of the areas of the second area and the leakage prevention grooves SL2 and SL3 formed in the width direction of the second protrusion P2 disposed in the region L is defined as a fifth area. The first U-shaped portion U1, the second U-shaped portion U2, and the like are preferably formed so that the fourth area and the fifth area are substantially the same.

図１０に示すように、第１Ｕ字部Ｕ１の第１突端部Ｐ１における不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２Ｕ字部Ｕ２の第２突端部における不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２より小さくなるよう形成されている。   As shown in FIG. 10, the first radius of curvature R1 in the inner peripheral portion P1b (not shown) in the first protruding end portion P1 of the first U-shaped portion U1 is the inner periphery not shown in the second protruding end portion of the second U-shaped portion U2. It is formed to be smaller than the second curvature radius R2 in the part P2b.

言い換えると、第１突端部Ｐ１の幅方向に形成される防漏溝１００が４本である第１Ｕ字部Ｕ１の前記不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも小さい。   In other words, the first curvature radius R1 in the inner peripheral portion P1b (not shown) of the first U-shaped portion U1 having four leakage preventing grooves 100 formed in the width direction of the first protruding end portion P1 is the second protruding end portion. The leakage preventing groove 100 formed in the width direction of P2 is smaller than the second curvature radius R2 in the inner peripheral portion P2b (not shown) of the second U-shaped portion U2 having two.

［２．６］第９実施形態
図１１により第９実施形態における吸収性物品を説明する。図１１においては、本発明の特徴を理解しやすくするため防漏溝部１０を中心に図示する。図１１に示すように、第９実施形態の吸収性物品１Ｈは、所定形状に形成された防漏溝１００により形成される防漏溝部１０を備える。この所定形状に形成された防漏溝１００は、圧着部９が連続して該所定形状を形成するように配置されることで形成される。 [2.6] Ninth Embodiment FIG. 11 illustrates an absorbent article according to the ninth embodiment. In FIG. 11, in order to facilitate understanding of the features of the present invention, the leak-proof groove 10 is mainly illustrated. As shown in FIG. 11, the absorbent article 1 </ b> H of the ninth embodiment includes a leak-proof groove portion 10 formed by a leak-proof groove 100 formed in a predetermined shape. The leak-proof groove 100 formed in this predetermined shape is formed by arranging the crimping portions 9 so as to continuously form the predetermined shape.

図１１に示すように、防漏溝部１０は、防漏溝１００が略Ｕ字状に形成される第１Ｕ字部Ｕ１と、第２Ｕ字部Ｕ２と、第３Ｕ字部Ｕ３とを備える。該第２Ｕ字部Ｕ２は第１Ｕ字部Ｕ１における長手方向における所定方向側に形成され、同様に、第３Ｕ字部Ｕ３は第２Ｕ字部Ｕ２の長手方向における所定方向側に形成される。本実施形態における第１Ｕ字部Ｕ１及び第２Ｕ字部Ｕ２は、略Ｖ字状に形成される。ここで、略Ｖ字状は、本発明における略Ｕ字状に含まれる。   As shown in FIG. 11, the leak-proof groove 10 includes a first U-shaped part U1, a second U-shaped part U2, and a third U-shaped part U3 in which the leak-proof groove 100 is formed in a substantially U shape. The second U-shaped portion U2 is formed on the predetermined direction side in the longitudinal direction of the first U-shaped portion U1, and similarly, the third U-shaped portion U3 is formed on the predetermined direction side in the longitudinal direction of the second U-shaped portion U2. The first U-shaped portion U1 and the second U-shaped portion U2 in the present embodiment are formed in a substantially V shape. Here, the substantially V shape is included in the substantially U shape in the present invention.

吸収性物品１Ｈの長手方向における内側に形成される第１Ｕ字部Ｕ１は、該所定方向に突出する第１突端部Ｐ１を有する。そして、第１突端部Ｐ１の該吸収性物品１Ｈにおける幅方向に４本の防漏溝１００が形成される。   The 1st U-shaped part U1 formed inside the longitudinal direction of the absorbent article 1H has the 1st protrusion part P1 which protrudes in this predetermined direction. And the four leak-proof grooves 100 are formed in the width direction in this absorbent article 1H of the 1st protrusion part P1.

第１Ｕ字部Ｕ１の所定方向側に形成される第２Ｕ字部Ｕ２は、該所定方向に突出する第２突端部Ｐ２を有する。そして、第２突端部Ｐ２の幅方向に２本の防漏溝１００が形成される。   The 2nd U-shaped part U2 formed in the predetermined direction side of the 1st U-shaped part U1 has the 2nd protrusion end part P2 which protrudes in this predetermined direction. Then, two leak-proof grooves 100 are formed in the width direction of the second protruding end portion P2.

第２Ｕ字部Ｕ２の所定方向側に形成され長手方向において最も外側に形成される第３Ｕ字部Ｕ３は、該所定方向に突出する第３突端部Ｐ３を有する。そして、第３突端部Ｐ３の幅方向には防漏溝１００は形成されていない。   The third U-shaped portion U3 formed on the second U-shaped portion U2 in the predetermined direction and formed on the outermost side in the longitudinal direction has a third protruding end portion P3 protruding in the predetermined direction. And the leak-proof groove | channel 100 is not formed in the width direction of the 3rd protrusion part P3.

そして、図１１に示すように、本実施形態において第１面積は、第２面積と同じか又は第２面積よりも小さくなるよう形成される。更には、第３面積は、第１面積及び第２面積よりも大きくなるよう形成される。   As shown in FIG. 11, in the present embodiment, the first area is formed to be the same as the second area or smaller than the second area. Furthermore, the third area is formed to be larger than the first area and the second area.

更に、第１面積と領域Ｋに配置される第１突端部の幅方向に形成される防漏溝ＳＫ２、ＳＫ３、ＳＫ４、ＳＫ５との面積の総和を第４面積とする。また、第２面積と領域Ｌに配置される第２突端部の幅方向に形成される防漏溝ＳＬ２、ＳＬ３との面積の総和を第５面積とする。そして、この第４面積と第５面積とが略同じになるように第１Ｕ字部Ｕ１、第２Ｕ字部Ｕ２等を形成することが好ましい。   Furthermore, the sum of the areas of the first area and the leakage prevention grooves SK2, SK3, SK4, and SK5 formed in the width direction of the first protrusions disposed in the region K is defined as a fourth area. Further, the sum of the areas of the second area and the leakage prevention grooves SL2 and SL3 formed in the width direction of the second protrusions disposed in the region L is defined as a fifth area. The first U-shaped portion U1, the second U-shaped portion U2, and the like are preferably formed so that the fourth area and the fifth area are substantially the same.

また、第３面積が、第４面積及び／又は第５面積と略同じになるように第３Ｕ字部Ｕ３を形成することが好ましい。   The third U-shaped portion U3 is preferably formed so that the third area is substantially the same as the fourth area and / or the fifth area.

図１１に示すように、第１Ｕ字部Ｕ１及び第２Ｕ字部Ｕ２は、略Ｖ字状に形成されているので、第１Ｕ字部Ｕ１の第１突端部Ｐ１における不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１及び第２Ｕ字部Ｕ２の第２突端部における不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２は共に０である。   As shown in FIG. 11, the first U-shaped portion U1 and the second U-shaped portion U2 are formed in a substantially V shape, and therefore an inner peripheral portion P1b (not shown) in the first protruding end portion P1 of the first U-shaped portion U1. The first curvature radius R1 and the second curvature radius R2 of the inner peripheral portion P2b (not shown) at the second protruding end of the second U-shaped portion U2 are both zero.

つまり、第１突端部Ｐ１の幅方向に形成される防漏溝１００が４本である第１Ｕ字部Ｕ１の前記不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１は０である。また、第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２は０である。   That is, the first curvature radius R1 in the inner peripheral portion P1b (not shown) of the first U-shaped portion U1 having four leak-proof grooves 100 formed in the width direction of the first protruding end portion P1 is zero. Further, the second curvature radius R2 in the inner peripheral portion P2b (not shown) of the second U-shaped portion U2 having two leak-proof grooves 100 formed in the width direction of the second protruding end portion P2 is zero.

第３Ｕ字部Ｕ３の第３突端部Ｐ３における不図示の内周部Ｐ３ｂにおける第３曲率半径Ｒ３は、第１曲率半径Ｒ１及び／又は第２曲率半径Ｒ２より大きくなるよう形成されている。   A third curvature radius R3 in an inner peripheral portion P3b (not shown) in the third protrusion P3 of the third U-shaped portion U3 is formed to be larger than the first curvature radius R1 and / or the second curvature radius R2.

［２．７］比較形態
図１２により比較形態における吸収性物品を説明する。図１２においては、特徴を理解しやすくするため防漏溝部１０を中心に図示する。図１２に示すように、比較形態の吸収性物品１Ｉは、所定形状に形成された防漏溝１００により形成される防漏溝部１０を備える。この所定形状に形成された防漏溝１００は、圧着部９が連続して該所定形状を形成するように配置されることで形成される。 [2.7] Comparative form The absorbent article in a comparative form is demonstrated with FIG. In FIG. 12, in order to facilitate understanding of the features, the leak-proof groove 10 is illustrated in the center. As shown in FIG. 12, the absorbent article 1 </ b> I of the comparative form includes a leak-proof groove portion 10 formed by a leak-proof groove 100 formed in a predetermined shape. The leak-proof groove 100 formed in this predetermined shape is formed by arranging the crimping portions 9 so as to continuously form the predetermined shape.

図１２に示すように、防漏溝部１０は、防漏溝１００が略Ｕ字状に形成される第１Ｕ字部Ｕ１と、第２Ｕ字部Ｕ２と、第３Ｕ字部Ｕ３とを備える。該第２Ｕ字部Ｕ２は第１Ｕ字部Ｕ１における長手方向における所定方向側に形成され、同様に、第３Ｕ字部Ｕ３は第２Ｕ字部Ｕ２の長手方向における所定方向側に形成される。本比較形態における吸収性物品１Ｉは第１実施形態における吸収性物品１と類似するが、第１Ｕ字部Ｕ１よりも第２Ｕ字部Ｕ２の方が、より急な曲線のＵ字状である。   As shown in FIG. 12, the leak-proof groove part 10 is provided with the 1st U-shaped part U1, the 2nd U-shaped part U2, and the 3rd U-shaped part U3 in which the leak-proof groove 100 is formed in a substantially U shape. The second U-shaped portion U2 is formed on the predetermined direction side in the longitudinal direction of the first U-shaped portion U1, and similarly, the third U-shaped portion U3 is formed on the predetermined direction side in the longitudinal direction of the second U-shaped portion U2. The absorbent article 1I in this comparative embodiment is similar to the absorbent article 1 in the first embodiment, but the second U-shaped portion U2 has a sharper U shape than the first U-shaped portion U1.

吸収性物品１Ｉの長手方向における内側に形成される第１Ｕ字部Ｕ１は、該所定方向に突出する第１突端部Ｐ１を有する。そして、第１突端部Ｐ１の該吸収性物品１Ａにおける幅方向に２本の防漏溝１００が形成される。   The first U-shaped portion U1 formed on the inner side in the longitudinal direction of the absorbent article 1I has a first protruding end portion P1 protruding in the predetermined direction. And the two leak-proof grooves 100 are formed in the width direction in this absorbent article 1A of the 1st protrusion part P1.

第１Ｕ字部Ｕ１の所定方向側に形成される第２Ｕ字部Ｕ２は、該所定方向に突出する第２突端部Ｐ２を有する。そして、第２突端部Ｐ２の幅方向に２本の防漏溝１００が形成される。   The 2nd U-shaped part U2 formed in the predetermined direction side of the 1st U-shaped part U1 has the 2nd protrusion end part P2 which protrudes in this predetermined direction. Then, two leak-proof grooves 100 are formed in the width direction of the second protruding end portion P2.

第２Ｕ字部Ｕ２の所定方向側に形成され長手方向において最も外側に形成される第３Ｕ字部Ｕ３は、該所定方向に突出する第３突端部Ｐ３を有する。そして、第３突端部Ｐ３の幅方向には防漏溝１００は形成されていない。   The third U-shaped portion U3 formed on the second U-shaped portion U2 in the predetermined direction and formed on the outermost side in the longitudinal direction has a third protruding end portion P3 protruding in the predetermined direction. And the leak-proof groove | channel 100 is not formed in the width direction of the 3rd protrusion part P3.

そして、図１２に示すように、本比較形態において第１面積は、第１実施形態とは異なり第２面積よりも大きくなるよう形成される。   Then, as shown in FIG. 12, the first area is formed to be larger than the second area, unlike the first embodiment, in this comparative embodiment.

また、図１２に示すように、第１Ｕ字部Ｕ１の第１突端部Ｐ１における不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第１実施形態とは異なり第２Ｕ字部Ｕ２の第２突端部における不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２より大きくなるよう形成されている。   Also, as shown in FIG. 12, the first curvature radius R1 in the inner peripheral portion P1b (not shown) in the first protruding end P1 of the first U-shaped portion U1 is different from that in the first embodiment in the second U-shaped portion U2. It is formed so as to be larger than the second curvature radius R2 in the inner peripheral portion P2b (not shown) at the two protruding end portions.

言い換えると、第１突端部Ｐ１の幅方向に形成される防漏溝１００が２本である第１Ｕ字部Ｕ１の前記不図示の内周部Ｐ１ｂにおける第１曲率半径Ｒ１は、第１実施形態とは異なり第２突端部Ｐ２の幅方向に形成される防漏溝１００が２本である第２Ｕ字部Ｕ２の前記不図示の内周部Ｐ２ｂにおける第２曲率半径Ｒ２よりも大きい。   In other words, the first curvature radius R1 in the inner peripheral portion P1b (not shown) of the first U-shaped portion U1 having two leak-proof grooves 100 formed in the width direction of the first protruding end portion P1 is the first embodiment. In contrast, the second leak-proof groove 100 formed in the width direction of the second protruding end portion P2 is larger than the second curvature radius R2 of the inner peripheral portion P2b (not shown) of the second U-shaped portion U2 having two.

本比較形態のように第１Ｕ字部Ｕ１及び第２Ｕ字部Ｕ２を形成した場合、本発明における吸収性物品で得られる剥離抑制効果等を得ることができない。   When the 1st U-shaped part U1 and the 2nd U-shaped part U2 are formed like this comparative form, the peeling suppression effect etc. which are obtained with the absorptive article in the present invention cannot be obtained.

［３］各構成物
以下に、各構成物について詳述する。表面シート部２の全部又は一部を構成する液透過性域は、多数の液透過孔が形成された樹脂フィルム、多数の網目を有するネット状シート、液透過性の不織布、又は織布などで形成される。前記樹脂フィルムやネット状シートは、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）、ポリエチレンテレフタレート（ＰＥＴ）などで形成されたものを使用できる。また不織布としては、レーヨンなどのセルロース繊維、合成樹脂繊維などから形成されたスパンレース不織布、前記合成樹脂繊維で形成されたエアースルー不織布などを用いることができる。また、素材として、ポリ乳酸、キトサン、ポリアルギン酸などの生分解性が可能な天然物を用いることもできる。また、多数の液透過孔を形成すると共に、シリコーン系やフッ素系の撥水性油剤を塗布して、その外面に体液が付着しにくいものとしてもよい。 [3] Each component Each component is described in detail below. The liquid permeable region constituting all or part of the surface sheet portion 2 is a resin film in which a large number of liquid permeable holes are formed, a net-like sheet having a large number of meshes, a liquid permeable nonwoven fabric, or a woven fabric. It is formed. As the resin film and the net-like sheet, those formed of polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET) or the like can be used. Moreover, as a nonwoven fabric, the spunlace nonwoven fabric formed from cellulose fibers, such as rayon, a synthetic resin fiber, the air through nonwoven fabric formed from the said synthetic resin fiber, etc. can be used. Moreover, as a raw material, natural products capable of biodegradability such as polylactic acid, chitosan, polyalginic acid and the like can be used. In addition, a large number of liquid-permeable holes may be formed, and a silicone-based or fluorine-based water-repellent oil agent may be applied to make it difficult for body fluids to adhere to the outer surface.

また、目付は１５から１００ｇ／ｍ２が好ましく、２０から５０ｇ／ｍ２がより好ましく、１０から４０ｇ／ｍ２が特に好ましい。目付が１５ｇ／ｍ２以下だと表面強度が十分に得られず、使用中に破ける恐れがある。また１００ｇ／ｍ２以上の場合、過度のごわつきが発現し、使用中に違和感を生じる。更には、長時間使用の場合には、４０ｇ／ｍ２を超えてしまうと、液体を表面シート部２で保持してしまいベタベタした状態で維持され続け、不快に感じるようになってしまう。また、密度は０．１２ｇ／ｃｍ３以下で液透過性であれば特には限定されない。密度がこれ以上の場合、表面シート部の繊維間をスムーズに透過することが難しい。経血の場合、尿などにくらべ粘性が高いので密度が低いものが好ましい。 Also, the basis weight is preferably 100 g / m 2 to 15, more preferably 50 g / m 2 to 20, particularly preferably 40 g / m 2 to 10. If the basis weight is 15 g / m 2 or less, sufficient surface strength cannot be obtained, and there is a risk of breaking during use. Moreover, in the case of 100 g / m < 2 > or more, excessive wrinkle will develop and a discomfort will be produced during use. Furthermore, in the case of using for a long time, when it exceeds 40 g / m 2 , the liquid is held by the top sheet portion 2 and is maintained in a solid state, which makes it uncomfortable. Further, the density is not particularly limited as long as it is 0.12 g / cm 3 or less and liquid permeable. When the density is higher than this, it is difficult to smoothly transmit between the fibers of the top sheet portion. In the case of menstrual blood, those having a low density are preferred because they are more viscous than urine and the like.

また、表面シート部２の全部又は一部を構成する液透過性域が、上述した多数の液透過性開孔が形成されたフィルム等である開孔フィルムである場合、開孔径は０．０５ｍｍ以上３ｍｍ以下の範囲内、ピッチは、０．２ｍｍ以上１０ｍｍ以下の範囲内、開孔面積率は、３％以上３０％以下の範囲内であることが好ましい。   When the liquid permeable region constituting all or part of the top sheet portion 2 is an apertured film such as a film in which a large number of liquid permeable apertures are formed as described above, the aperture diameter is 0.05 mm. Preferably, the pitch is in the range of 3 mm or less, the pitch is in the range of 0.2 mm or more and 10 mm or less, and the aperture area ratio is in the range of 3% or more and 30% or less.

また、表面シート部２の全部又は一部を構成する液透過性域において、中間シート部５と一体的に複数の開孔５１を形成することもできる。開孔５１の配列は千鳥状、格子状、波状など特に限定されない。また、開孔の形状としては、丸型、楕円型、四角型などが挙げられる。また、開孔５１の周縁に弁が備えられていてもよい。   In addition, a plurality of apertures 51 can be formed integrally with the intermediate sheet portion 5 in the liquid permeable region constituting all or part of the top sheet portion 2. The arrangement of the apertures 51 is not particularly limited, such as a staggered pattern, a lattice pattern, or a wavy pattern. Examples of the shape of the opening include a round shape, an elliptical shape, and a square shape. Further, a valve may be provided on the periphery of the opening 51.

裏面シート部３は、吸収体部４に吸収された***物が外へ漏れ出すのを防止できる材料が使用される。また、透湿性素材とすることにより、装着時のムレを低減させることができ、装着時における不快感を低減させることが可能となる。このような材料としては、例えば、ポリエチレン（ＰＥ）、ポリプロピレン（ＰＰ）等を主体とした液不透過性フィルム、通気性フィルム、スパンボンドなどの不織布の片面に液不透過性フィルムをラミネートした複合シートなどが挙げられる。好ましくは、疎水性の不織布、不透水性のプラスティックフィルム、不織布と不透水性プラスティックフィルムとのラミネートシート等を用いることができる。また、耐水性の高いメルトブローン不織布を強度の強いスパンボンド不織布で挟んだＳＭＳ不織布でもよい。   The back sheet 3 is made of a material that can prevent excrement absorbed by the absorber 4 from leaking outside. In addition, by using a moisture-permeable material, it is possible to reduce stuffiness at the time of wearing, and to reduce discomfort at the time of wearing. Such materials include, for example, a liquid-impermeable film mainly composed of polyethylene (PE), polypropylene (PP), etc., a breathable film, a composite in which a liquid-impermeable film is laminated on one side of a nonwoven fabric such as spunbond. A sheet etc. are mentioned. Preferably, a hydrophobic nonwoven fabric, a water-impermeable plastic film, a laminate sheet of a nonwoven fabric and a water-impermeable plastic film, or the like can be used. Alternatively, an SMS nonwoven fabric in which a melt-blown nonwoven fabric having high water resistance is sandwiched between strong spunbond nonwoven fabrics may be used.

中間シート部５は、表面シート部２と吸収体部４との間に配置される液透過性シートである。中間シート部５に使用される材料としては、表面シート部２の全部又は一部を構成する液透過性域と同様に多数の液透過孔が形成された樹脂フィルム、多数の網目を有するネット状シート、液透過性の不織布、又は織布などで形成される。前記樹脂フィルムやネット状シートは、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）、ポリエチレンテレフタレート（ＰＥＴ）などで形成されたものを使用できる。また不織布としては、レーヨンなどのセルロース繊維、合成樹脂繊維などから形成されたスパンレース不織布、前記合成樹脂繊維で形成されたエアースルー不織布やエアレイド不織布などを用いることができる。   The intermediate sheet portion 5 is a liquid permeable sheet disposed between the top sheet portion 2 and the absorber portion 4. The material used for the intermediate sheet portion 5 includes a resin film in which a large number of liquid permeable holes are formed as in the liquid permeable region constituting all or part of the top sheet portion 2, and a net shape having a large number of meshes. A sheet, a liquid-permeable nonwoven fabric, or a woven fabric is used. As the resin film and the net-like sheet, those formed of polypropylene (PP), polyethylene (PE), polyethylene terephthalate (PET) or the like can be used. Moreover, as a nonwoven fabric, the spunlace nonwoven fabric formed from cellulose fibers, such as rayon, a synthetic resin fiber, the air through nonwoven fabric formed by the said synthetic resin fiber, an airlaid nonwoven fabric, etc. can be used.

吸収体部４は、表面シート部２側に配置されるクッションと、吸収体材料とで構成される。吸収体材料は、経血等の液体を吸収して保持する機能を有するもので、嵩高であり、型崩れし難く、化学的刺激が少ないものであることが好ましい。例えば、フラッフ状パルプもしくはエアレイド不織布と高吸収ポリマーとからなる吸収体材料を例示できる。フラッフ状パルプの代わりに、例えば、化学パルプ、セルロース繊維、レーヨン、アセテート等の人工セルロース繊維を例示できる。パルプは目付５００ｇ／ｍ２、ポリマーは目付２０ｇ／ｍ２（ポリマーは全体に分散している）で、パルプとポリマーが全体に均一に分布した混合体を、目付け１５ｇ／ｍ２のティッシュで包んだものが挙げられる。エアレイド不織布としては、例えば、パルプと合成繊維とを熱融着させ又はバインダーで固着させた不織布を例示できる。高吸収ポリマー（ＳＡＰ）としては、例えば、デンプン系、アクリル酸系、アミノ酸系の粒子状又は繊維状のポリマーを例示できる。 The absorber part 4 is comprised by the cushion arrange | positioned at the surface sheet part 2 side, and an absorber material. The absorbent material has a function of absorbing and holding a liquid such as menstrual blood, and is preferably bulky, hardly deformed, and has little chemical irritation. For example, the absorber material which consists of a fluffy pulp or an airlaid nonwoven fabric and a superabsorbent polymer can be illustrated. In place of the fluffy pulp, for example, artificial cellulose fibers such as chemical pulp, cellulose fiber, rayon, and acetate can be exemplified. Pulp is 500 g / m 2 , polymer is 20 g / m 2 (the polymer is dispersed throughout), and a mixture of pulp and polymer uniformly distributed is wrapped in a tissue with a weight of 15 g / m 2 Can be mentioned. As an airlaid nonwoven fabric, for example, a nonwoven fabric in which pulp and synthetic fibers are thermally fused or fixed with a binder can be exemplified. Examples of the superabsorbent polymer (SAP) include starch-based, acrylic acid-based, and amino acid-based particulate or fibrous polymers.

吸収体部４の形状及び構造は必要に応じて変えることができるが、吸収体部４の全吸収量は、吸収性物品としての設計挿入量及び所望の用途に対応させる必要がある。また、吸収体部４のサイズや吸収能力等は用途に対応して変動される。   Although the shape and structure of the absorber part 4 can be changed as needed, it is necessary to make the total absorption amount of the absorber part 4 correspond to the design insertion amount and desired application as an absorbent article. Moreover, the size, absorption capacity, etc. of the absorber part 4 are fluctuate | varied according to a use.

防漏溝部１０を構成する防漏溝１００は、所定の圧着処理により連続して形成される圧着部９により形成される。圧着部９は、加熱ローラを用いた所定の圧着処理により形成される。例えば、吸収体部４の裏面シート部３側に表面がフラットなロールが当てられ、表面シート部２の表面側に所定パターンの凸部を有する加熱ロールが当てられて、加圧され且つ加熱される。その結果、圧着部９では、吸収体部４及び表面シート部２がほぼフィルム状に圧着された複数の高密度の圧着部９と、高密度の圧着部９と隣接する高密度の圧着部９との間に位置して、フィルム状にはなっていないが防漏溝１００以外の領域よりも高密度となった複数の中密度圧着部が形成される。防漏溝１００のパターンの全ての部分において、この高密度の圧着部９と中密度の圧着部が交互に形成されて、吸収性物品１の表面（身体側）から裏面シート部３側へ窪む線状の防漏溝１００が形成される。   The leak-proof groove 100 constituting the leak-proof groove part 10 is formed by the crimp part 9 formed continuously by a predetermined crimp process. The crimping part 9 is formed by a predetermined crimping process using a heating roller. For example, a roll having a flat surface is applied to the back surface sheet portion 3 side of the absorbent body portion 4, and a heating roll having a convex portion of a predetermined pattern is applied to the front surface side of the top sheet portion 2 to be pressurized and heated. The As a result, in the crimping part 9, a plurality of high-density crimping parts 9 in which the absorber part 4 and the surface sheet part 2 are almost crimped in a film shape, and a high-density crimping part 9 adjacent to the high-density crimping part 9. A plurality of medium-density crimping portions that are not film-shaped but have a higher density than the region other than the leak-proof groove 100 are formed. In all parts of the pattern of the leak-proof groove 100, the high-density crimping portions 9 and the medium-density crimping portions are alternately formed, and are recessed from the surface (body side) of the absorbent article 1 to the back sheet portion 3 side. A linear leak-proof groove 100 is formed.

防漏溝１００における幅寸法は、例えば、第１実施形態の吸収性物品１において、０．５ｍｍから１０ｍｍ、好ましくは１ｍｍから５ｍｍとするのが望ましい。幅寸法が０．５ｍｍ以下の場合には、表面シート部２と吸収体部４を切ってしまうだけになる。幅寸法が１０ｍｍ以上の場合には、フィット性、使用感、吸収性等が低下してしまう。   For example, in the absorbent article 1 according to the first embodiment, the width dimension of the leak-proof groove 100 is 0.5 mm to 10 mm, preferably 1 mm to 5 mm. When the width dimension is 0.5 mm or less, the top sheet portion 2 and the absorber portion 4 are only cut. When the width dimension is 10 mm or more, fit, usability, absorbability, etc. are lowered.

粘着部８等における粘着体は、アクリル系粘着剤、ゴム系粘着剤などの粘着剤の他、肌に密着して接着力を発揮するセルロース系、ポリビニルアルコール系、ゼラチン、ポリグルタミン酸、ポリリジンなどのポリアミノ酸ゲルを用いることもできる。   The pressure-sensitive adhesive in the pressure-sensitive adhesive portion 8 and the like is not limited to pressure-sensitive adhesives such as acrylic pressure-sensitive adhesives and rubber-based pressure-sensitive adhesives, but also cellulose-based, polyvinyl alcohol-based, gelatin, polyglutamic acid, polylysine, etc. Polyamino acid gels can also be used.

１ 吸収性物品
２ 表面シート部
３ 裏面シート部
４ 吸収体部
１０ 防漏溝部
１００ 防漏溝
Ｕ１ 第１Ｕ字部
Ｕ２ 第２Ｕ字部
Ｕ３ 第３Ｕ字部
Ｐ１ 第１突端部
Ｐ２ 第２突端部
Ｐ３ 第３突端部 DESCRIPTION OF SYMBOLS 1 Absorbent article 2 Top sheet part 3 Back sheet part 4 Absorber part 10 Leak-proof groove part 100 Leak-proof groove U1 1st U-shaped part U2 2nd U-shaped part U3 3rd U-shaped part P1 1st protruding end part P2 2nd protruding end part P3 Third tip

Claims (9)

少なくとも一部が液透過性の表面シート部と、液不透過性の裏面シート部と、前記表面シート部と前記裏面シート部との間に配置される吸収体部と、前記表面シート部及び前記吸収体部を圧着する圧着部が連続的に形成されてなる１又は複数の防漏溝を有する防漏溝部と、を備える略縦長状の吸収性物品であって、
前記防漏溝部は、
該吸収性物品の長手方向における所定方向に突出する第２突端部を有すると共に、前記第２突端部の該吸収性物品における幅方向に複数本の防漏溝が形成される略Ｕ字状の第２Ｕ字部と、
前記第２Ｕ字部の前記所定方向側に形成され、前記所定方向に突出する第３突端部を有すると共に、前記第３突端部の前記幅方向に防漏溝が配置されない略Ｕ字状の第３Ｕ字部と、を備え、
前記第３突端部における前記所定方向側の外周部に接する第３接線と、前記第３接線に平行で前記第３接線から前記所定方向とは反対側に所定距離だけ離間する第３平行線との間に配置される前記第３Ｕ字部の面積である第３面積は、
前記第２突端部における前記所定方向側の外周部に接する第２接線と、前記第２接線に平行で前記第２接線から前記所定方向とは反対の方向に所定距離だけ離間する第２平行線との間に配置される前記第２Ｕ字部の面積である第２面積よりも大きい吸収性物品。 At least a part of the liquid-permeable top sheet part, a liquid-impermeable back sheet part, an absorber part disposed between the top sheet part and the back sheet part, the top sheet part, and the top sheet part A leak-proof groove part having one or a plurality of leak-proof grooves formed by continuously forming a pressure-bonding part for crimping the absorber part, and a substantially vertically long absorbent article,
The leakage preventing groove is
A substantially U-shape having a second protruding end portion protruding in a predetermined direction in the longitudinal direction of the absorbent article and having a plurality of leak-proof grooves formed in the width direction of the absorbent article at the second protruding end portion. A second U-shaped part;
The second U-shaped portion is formed on the predetermined direction side, has a third protruding end portion protruding in the predetermined direction, and has a substantially U-shaped first shape in which no leak-proof groove is arranged in the width direction of the third protruding end portion. 3U-shaped part,
A third tangent line in contact with the outer peripheral portion on the predetermined direction side at the third protruding end, and a third parallel line parallel to the third tangent line and spaced apart from the third tangent line by a predetermined distance on the opposite side to the predetermined direction. The third area which is the area of the third U-shaped portion disposed between
A second tangent line in contact with an outer peripheral portion on the predetermined direction side at the second protruding end, and a second parallel line parallel to the second tangent line and separated from the second tangent line by a predetermined distance in a direction opposite to the predetermined direction. An absorbent article that is larger than a second area that is an area of the second U-shaped portion disposed between the two. 前記第３面積は、前記第２接線と前記第２平行線との間に配置される前記第２Ｕ字部及び前記第２突端部の前記幅方向に形成される防漏溝の合計面積である第５面積と略同じである請求項１に記載の吸収性物品。   The third area is a total area of leakage preventing grooves formed in the width direction of the second U-shaped portion and the second protruding end portion disposed between the second tangent line and the second parallel line. The absorbent article according to claim 1, which is substantially the same as the fifth area. 少なくとも一部が液透過性の表面シート部と、液不透過性の裏面シート部と、前記表面シート部と前記裏面シート部との間に配置される吸収体部と、前記表面シート部及び前記吸収体部を圧着する圧着部が連続的に形成されてなる１又は複数の防漏溝を有する防漏溝部と、を備える略縦長状の吸収性物品であって、
前記防漏溝部は、
該吸収性物品の長手方向における所定方向に突出する第２突端部を有すると共に、前記第２突端部の該吸収性物品における幅方向に複数本の防漏溝が形成される略Ｕ字状の第２Ｕ字部と、
前記第２Ｕ字部の前記所定方向側に形成され、前記所定方向に突出する第３突端部を有すると共に、前記第３突端部の前記幅方向に防漏溝が配置されない略Ｕ字状の第３Ｕ字部と、を備え、
前記第３突端部における第３曲率半径は、前記第２突端部における第２曲率半径よりも大きい吸収性物品。 At least a part of the liquid-permeable top sheet part, a liquid-impermeable back sheet part, an absorber part disposed between the top sheet part and the back sheet part, the top sheet part, and the top sheet part A leak-proof groove part having one or a plurality of leak-proof grooves formed by continuously forming a pressure-bonding part for crimping the absorber part, and a substantially vertically long absorbent article,
The leakage preventing groove is
A substantially U-shape having a second protruding end portion protruding in a predetermined direction in the longitudinal direction of the absorbent article and having a plurality of leak-proof grooves formed in the width direction of the absorbent article at the second protruding end portion. A second U-shaped part;
The second U-shaped portion is formed on the predetermined direction side, has a third protruding end portion protruding in the predetermined direction, and has a substantially U-shaped first shape in which no leak-proof groove is arranged in the width direction of the third protruding end portion. 3U-shaped part,
The 3rd radius of curvature in the 3rd tip part is an absorptive article larger than the 2nd curvature radius in the 2nd tip part. 前記曲率半径のそれぞれは、前記Ｕ字部のそれぞれにおける前記所定方向とは反対の方向側の内周部における曲率半径である請求項３に記載の吸収性物品。   4. The absorbent article according to claim 3, wherein each of the curvature radii is a curvature radius in an inner peripheral portion on a side opposite to the predetermined direction in each of the U-shaped portions. 少なくとも一部が液透過性の表面シート部と、液不透過性の裏面シート部と、前記表面シート部と前記裏面シート部との間に配置される吸収体部と、前記表面シート部及び前記吸収体部を圧着する圧着部が連続的に形成されてなる１又は複数の防漏溝を有する防漏溝部と、を備える略縦長状の吸収性物品であって、
前記防漏溝部は、
該吸収性物品の長手方向における所定方向に突出する第２突端部を有すると共に、前記第２突端部の該吸収性物品における幅方向に複数本の防漏溝が形成される略Ｕ字状の第２Ｕ字部と、
前記第２Ｕ字部の前記所定方向側に形成され、前記所定方向に突出する第３突端部を有すると共に、前記第３突端部の前記幅方向に防漏溝が配置されない略Ｕ字状の第３Ｕ字部と、を備え、
前記第３突端部における前記所定方向側の外周部に接する第３接線と、前記第３接線に平行で前記第３接線から前記所定方向とは反対側に所定距離だけ離間する第３平行線との間に配置される前記第３Ｕ字部を形成する圧着部の面積である第３圧着部面積は、前記第２突端部における前記所定方向側の外周部に接する第２接線と、前記第２接線に平行で前記第２接線から前記所定方向とは反対側に所定距離だけ離間する第２平行線との間に配置される前記第２Ｕ字部を形成する圧着部の面積である第２圧着部面積よりも大きい吸収性物品。 At least a part of the liquid-permeable top sheet part, a liquid-impermeable back sheet part, an absorber part disposed between the top sheet part and the back sheet part, the top sheet part, and the top sheet part A leak-proof groove part having one or a plurality of leak-proof grooves formed by continuously forming a pressure-bonding part for crimping the absorber part, and a substantially vertically long absorbent article,
The leakage preventing groove is
A substantially U-shape having a second protruding end portion protruding in a predetermined direction in the longitudinal direction of the absorbent article and having a plurality of leak-proof grooves formed in the width direction of the absorbent article at the second protruding end portion. A second U-shaped part;
The second U-shaped portion is formed on the predetermined direction side, has a third protruding end portion protruding in the predetermined direction, and has a substantially U-shaped first shape in which no leak-proof groove is arranged in the width direction of the third protruding end portion. 3U-shaped part,
A third tangent line in contact with the outer peripheral portion on the predetermined direction side at the third protruding end, and a third parallel line parallel to the third tangent line and spaced apart from the third tangent line by a predetermined distance on the opposite side to the predetermined direction. A third crimping portion area, which is an area of the crimping portion forming the third U-shaped portion disposed between the second tangent line and the second tangent line in contact with the outer peripheral portion on the predetermined direction side in the second projecting end portion; A second crimping area that is an area of a crimping part that forms the second U-shaped part that is disposed between the second parallel line that is parallel to the tangent line and separated from the second tangent line by a predetermined distance on the opposite side of the predetermined direction. Absorbent article larger than the part area. 前記第３接線と前記第３平行線との間に配置される前記第３Ｕ字部を形成する圧着部の前記幅方向における第３圧着部幅が、前記第２接線と前記第２平行線との間に配置される前記第２Ｕ字部を形成する圧着部の前記幅方向における第２圧着部幅よりも広い請求項５に記載の吸収性物品。   The third crimping portion width in the width direction of the crimping portion that forms the third U-shaped portion disposed between the third tangent and the third parallel line is the second tangent and the second parallel line. The absorbent article of Claim 5 wider than the 2nd crimping | compression-bonding part width | variety in the said width direction of the crimping | compression-bonding part which forms the said 2nd U-shaped part arrange | positioned between. 少なくとも一部が液透過性の表面シート部と、液不透過性の裏面シート部と、前記表面シート部と前記裏面シート部との間に配置される吸収体部と、前記表面シート部及び前記吸収体部を圧着する圧着部が連続的に形成されてなる１又は複数の防漏溝を有する防漏溝部と、を備える略縦長状の吸収性物品であって、
前記防漏溝部は、
該吸収性物品の長手方向における所定方向に突出する第２突端部を有すると共に、前記第２突端部の該吸収性物品における幅方向に複数本の防漏溝が形成される略Ｕ字状の第２Ｕ字部と、
前記第２Ｕ字部の前記所定方向側に形成され、前記所定方向に突出する第３突端部を有すると共に、前記第３突端部の前記幅方向に防漏溝が配置されない略Ｕ字状の第３Ｕ字部と、を備え、
前記第３突端部における前記所定方向側の外周部に接する第３接線と、前記第３接線に平行で前記所定方向とは反対側の内周部に接する第５接線との中間である第３中間線における前記第３Ｕ字部と交差する第３交差部の第３長さは、前記第２突端部における前記所定方向側の外周部に接する第２接線と、前記第２接線に平行で前記所定方向とは反対側の内周部に接する第５接線との中間である第２中間線における前記第２Ｕ字部と交差する第２交差部の第２長さよりも長い吸収性物品。 At least a part of the liquid-permeable top sheet part, a liquid-impermeable back sheet part, an absorber part disposed between the top sheet part and the back sheet part, the top sheet part, and the top sheet part A leak-proof groove part having one or a plurality of leak-proof grooves formed by continuously forming a pressure-bonding part for crimping the absorber part, and a substantially vertically long absorbent article,
The leakage preventing groove is
A substantially U-shape having a second protruding end portion protruding in a predetermined direction in the longitudinal direction of the absorbent article and having a plurality of leak-proof grooves formed in the width direction of the absorbent article at the second protruding end portion. A second U-shaped part;
The second U-shaped portion is formed on the predetermined direction side, has a third protruding end portion protruding in the predetermined direction, and has a substantially U-shaped first shape in which no leak-proof groove is arranged in the width direction of the third protruding end portion. 3U-shaped part,
The third tangent line that is in contact with the outer peripheral part on the predetermined direction side at the third protrusion end and the fifth tangent line that is parallel to the third tangent line and in contact with the inner peripheral part on the opposite side to the predetermined direction. The third length of the third intersecting portion that intersects the third U-shaped portion in the intermediate line is parallel to the second tangent and the second tangent that is in contact with the outer peripheral portion of the second protruding end on the predetermined direction side. An absorbent article that is longer than a second length of a second intersecting portion that intersects with the second U-shaped portion in a second intermediate line that is in the middle of a fifth tangent that is in contact with an inner peripheral portion opposite to the predetermined direction. 前記第３長さは、前記第２中間線における前記第２Ｕ字部及び前記第２突端部の前記幅方向に形成される防漏溝と交差する複数の交差部におけるそれぞれの長さの合計長さである第５長さと略同じで長さである請求項７に記載の吸収性物品。   The third length is the total length of the lengths of a plurality of intersecting portions intersecting the leakage preventing grooves formed in the width direction of the second U-shaped portion and the second protruding end portion in the second intermediate line. The absorbent article according to claim 7, which is substantially the same length as the fifth length. 少なくとも一部が液透過性の表面シート部と、液不透過性の裏面シート部と、前記表面シート部と前記裏面シート部との間に配置される吸収体部と、前記表面シート部及び前記吸収体部を圧着する圧着部が連続的に形成されてなる１又は複数の防漏溝を有する防漏溝部と、を備える略縦長状の吸収性物品であって、
前記防漏溝部は、
該吸収性物品の長手方向における所定方向に突出する第２突端部を有すると共に、前記第２突端部の該吸収性物品における幅方向に複数本の防漏溝が形成される略Ｕ字状の第２Ｕ字部と、
前記第２Ｕ字部の前記所定方向側に形成され、前記所定方向に突出する第３突端部を有すると共に、前記第３突端部の前記幅方向に防漏溝が配置されない略Ｕ字状の第３Ｕ字部と、を備え、
前記第３突端部における前記所定方向側の外周部に接する第３接線と、前記第３接線に平行で前記所定方向とは反対側の内周部に接する第３平行線との間に配置される前記第３Ｕ字部の面積である第３面積は、
前記第２突端部における前記所定方向側の外周部に接する第２接線と、前記第２接線に平行で前記所定方向とは反対側の内周部に接する第２平行線との間に配置される前記第２Ｕ字部の面積である第２面積よりも大きく、
前記第３突端部における第３曲率半径は、前記第２突端部における第２曲率半径よりも大きく、
前記第３接線と前記第３平行線との間に配置される前記第３Ｕ字部を形成する圧着部の面積である第３圧着部面積は、前記第２接線と前記第２平行線との間に配置される前記第２Ｕ字部を形成する圧着部の面積である第２圧着部面積よりも大きく、
前記第３接線と前記第３平行線との中間である第３中間線における前記第３Ｕ字部と交差する第３交差部の第３長さは、前記第２接線と前記第２平行線との中間である第２中間線における前記第２Ｕ字部と交差する第２交差部の第２長さよりも長い吸収性物品。 At least a part of the liquid-permeable top sheet part, a liquid-impermeable back sheet part, an absorber part disposed between the top sheet part and the back sheet part, the top sheet part, and the top sheet part A leak-proof groove part having one or a plurality of leak-proof grooves formed by continuously forming a pressure-bonding part for crimping the absorber part, and a substantially vertically long absorbent article,
The leakage preventing groove is
A substantially U-shape having a second protruding end portion protruding in a predetermined direction in the longitudinal direction of the absorbent article and having a plurality of leak-proof grooves formed in the width direction of the absorbent article at the second protruding end portion. A second U-shaped part;
The second U-shaped portion is formed on the predetermined direction side, has a third protruding end portion protruding in the predetermined direction, and has a substantially U-shaped first shape in which no leak-proof groove is arranged in the width direction of the third protruding end portion. 3U-shaped part,
The third projecting end portion is disposed between a third tangent line in contact with the outer peripheral portion on the predetermined direction side and a third parallel line in parallel with the third tangent line and in contact with the inner peripheral portion on the side opposite to the predetermined direction. The third area, which is the area of the third U-shaped part,
The second projecting end portion is disposed between a second tangent line in contact with the outer peripheral portion on the predetermined direction side and a second parallel line in parallel with the second tangent line and in contact with the inner peripheral portion on the opposite side to the predetermined direction. Larger than the second area which is the area of the second U-shaped part,
The third radius of curvature at the third tip is greater than the second radius of curvature at the second tip,
A third crimping portion area, which is an area of the crimping portion that forms the third U-shaped portion disposed between the third tangent and the third parallel line, is the second tangent and the second parallel line. It is larger than the second crimping part area, which is the area of the crimping part that forms the second U-shaped part arranged in between,
The third length of the third intersecting portion that intersects the third U-shaped portion in the third intermediate line that is intermediate between the third tangent and the third parallel line is the second tangent and the second parallel line. An absorbent article that is longer than the second length of the second intersecting portion that intersects the second U-shaped portion in the second intermediate line that is the middle of the second intermediate line.
JP2010225852A 2010-10-05 2010-10-05 Absorptive article Pending JP2011000480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2010225852A JP2011000480A (en) 2010-10-05 2010-10-05 Absorptive article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010225852A JP2011000480A (en) 2010-10-05 2010-10-05 Absorptive article

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2005355485A Division JP2007152033A (en) 2005-12-08 2005-12-08 Absorbent article

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2011220758A Division JP2012000516A (en) 2011-10-05 2011-10-05 Absorptive article

Publications (1)

Publication Number Publication Date
JP2011000480A true JP2011000480A (en) 2011-01-06

Family

ID=43558912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010225852A Pending JP2011000480A (en) 2010-10-05 2010-10-05 Absorptive article

Country Status (1)

Country Link
JP (1) JP2011000480A (en)

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8979815B2 (en) 2012-12-10 2015-03-17 The Procter & Gamble Company Absorbent articles with channels
US9060904B2 (en) 2007-06-18 2015-06-23 The Procter & Gamble Company Disposable absorbent article with sealed absorbent core with substantially continuously distributed absorbent particulate polymer material
US9066838B2 (en) 2011-06-10 2015-06-30 The Procter & Gamble Company Disposable diaper having reduced absorbent core to backsheet gluing
US9072634B2 (en) 2007-06-18 2015-07-07 The Procter & Gamble Company Disposable absorbent article with substantially continuously distributed absorbent particulate polymer material and method
US9216118B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels and/or pockets
US9216116B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels
US9326896B2 (en) 2008-04-29 2016-05-03 The Procter & Gamble Company Process for making an absorbent core with strain resistant core cover
US9340363B2 (en) 2009-12-02 2016-05-17 The Procter & Gamble Company Apparatus and method for transferring particulate material
US9375358B2 (en) 2012-12-10 2016-06-28 The Procter & Gamble Company Absorbent article with high absorbent material content
US9468566B2 (en) 2011-06-10 2016-10-18 The Procter & Gamble Company Absorbent structure for absorbent articles
US9492328B2 (en) 2011-06-10 2016-11-15 The Procter & Gamble Company Method and apparatus for making absorbent structures with absorbent material
US9532910B2 (en) 2012-11-13 2017-01-03 The Procter & Gamble Company Absorbent articles with channels and signals
US9668926B2 (en) 2011-06-10 2017-06-06 The Procter & Gamble Company Method and apparatus for making absorbent structures with absorbent material
US9713557B2 (en) 2012-12-10 2017-07-25 The Procter & Gamble Company Absorbent article with high absorbent material content
US9713556B2 (en) 2012-12-10 2017-07-25 The Procter & Gamble Company Absorbent core with high superabsorbent material content
US9763835B2 (en) 2003-02-12 2017-09-19 The Procter & Gamble Company Comfortable diaper
US9789009B2 (en) 2013-12-19 2017-10-17 The Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator
US9789011B2 (en) 2013-08-27 2017-10-17 The Procter & Gamble Company Absorbent articles with channels
US9974699B2 (en) 2011-06-10 2018-05-22 The Procter & Gamble Company Absorbent core for disposable absorbent articles
US9987176B2 (en) 2013-08-27 2018-06-05 The Procter & Gamble Company Absorbent articles with channels
US10071002B2 (en) 2013-06-14 2018-09-11 The Procter & Gamble Company Absorbent article and absorbent core forming channels when wet
US10130527B2 (en) 2013-09-19 2018-11-20 The Procter & Gamble Company Absorbent cores having material free areas
US10137039B2 (en) 2013-12-19 2018-11-27 The Procter & Gamble Company Absorbent cores having channel-forming areas and C-wrap seals
US10149788B2 (en) 2011-06-10 2018-12-11 The Procter & Gamble Company Disposable diapers
US10292875B2 (en) 2013-09-16 2019-05-21 The Procter & Gamble Company Absorbent articles with channels and signals
US10322040B2 (en) 2015-03-16 2019-06-18 The Procter & Gamble Company Absorbent articles with improved cores
US10470948B2 (en) 2003-02-12 2019-11-12 The Procter & Gamble Company Thin and dry diaper
US10507144B2 (en) 2015-03-16 2019-12-17 The Procter & Gamble Company Absorbent articles with improved strength
US10543129B2 (en) 2015-05-29 2020-01-28 The Procter & Gamble Company Absorbent articles having channels and wetness indicator
US10561546B2 (en) 2011-06-10 2020-02-18 The Procter & Gamble Company Absorbent structure for absorbent articles
US10632029B2 (en) 2015-11-16 2020-04-28 The Procter & Gamble Company Absorbent cores having material free areas
US10639215B2 (en) 2012-12-10 2020-05-05 The Procter & Gamble Company Absorbent articles with channels and/or pockets
US10736795B2 (en) 2015-05-12 2020-08-11 The Procter & Gamble Company Absorbent article with improved core-to-backsheet adhesive
US10842690B2 (en) 2016-04-29 2020-11-24 The Procter & Gamble Company Absorbent core with profiled distribution of absorbent material
US11090199B2 (en) 2014-02-11 2021-08-17 The Procter & Gamble Company Method and apparatus for making an absorbent structure comprising channels
US11123240B2 (en) 2016-04-29 2021-09-21 The Procter & Gamble Company Absorbent core with transversal folding lines
US11207220B2 (en) 2013-09-16 2021-12-28 The Procter & Gamble Company Absorbent articles with channels and signals
US11510829B2 (en) 2014-05-27 2022-11-29 The Procter & Gamble Company Absorbent core with absorbent material pattern

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11113955A (en) * 1997-10-20 1999-04-27 Shiseido Co Ltd Humor absorbent article
JP2003265519A (en) * 2002-03-13 2003-09-24 Daio Paper Corp Absorptive article
JP2004113538A (en) * 2002-09-27 2004-04-15 Daio Paper Corp Body liquid absorbable article

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11113955A (en) * 1997-10-20 1999-04-27 Shiseido Co Ltd Humor absorbent article
JP2003265519A (en) * 2002-03-13 2003-09-24 Daio Paper Corp Absorptive article
JP2004113538A (en) * 2002-09-27 2004-04-15 Daio Paper Corp Body liquid absorbable article

Cited By (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9763835B2 (en) 2003-02-12 2017-09-19 The Procter & Gamble Company Comfortable diaper
US11793682B2 (en) 2003-02-12 2023-10-24 The Procter & Gamble Company Thin and dry diaper
US11234868B2 (en) 2003-02-12 2022-02-01 The Procter & Gamble Company Comfortable diaper
US11135096B2 (en) 2003-02-12 2021-10-05 The Procter & Gamble Company Comfortable diaper
US10660800B2 (en) 2003-02-12 2020-05-26 The Procter & Gamble Company Comfortable diaper
US10470948B2 (en) 2003-02-12 2019-11-12 The Procter & Gamble Company Thin and dry diaper
US9060904B2 (en) 2007-06-18 2015-06-23 The Procter & Gamble Company Disposable absorbent article with sealed absorbent core with substantially continuously distributed absorbent particulate polymer material
US9072634B2 (en) 2007-06-18 2015-07-07 The Procter & Gamble Company Disposable absorbent article with substantially continuously distributed absorbent particulate polymer material and method
US9241845B2 (en) 2007-06-18 2016-01-26 The Procter & Gamble Company Disposable absorbent article with sealed absorbent core with substantially continuously distributed absorbent particulate polymer material
US9326896B2 (en) 2008-04-29 2016-05-03 The Procter & Gamble Company Process for making an absorbent core with strain resistant core cover
US9340363B2 (en) 2009-12-02 2016-05-17 The Procter & Gamble Company Apparatus and method for transferring particulate material
US10004647B2 (en) 2009-12-02 2018-06-26 The Procter & Gamble Company Apparatus and method for transferring particulate material
US11135105B2 (en) 2011-06-10 2021-10-05 The Procter & Gamble Company Absorbent structure for absorbent articles
US9468566B2 (en) 2011-06-10 2016-10-18 The Procter & Gamble Company Absorbent structure for absorbent articles
US9649232B2 (en) 2011-06-10 2017-05-16 The Procter & Gamble Company Disposable diaper having reduced absorbent core to backsheet gluing
US9668926B2 (en) 2011-06-10 2017-06-06 The Procter & Gamble Company Method and apparatus for making absorbent structures with absorbent material
US11911250B2 (en) 2011-06-10 2024-02-27 The Procter & Gamble Company Absorbent structure for absorbent articles
US9066838B2 (en) 2011-06-10 2015-06-30 The Procter & Gamble Company Disposable diaper having reduced absorbent core to backsheet gluing
US9492328B2 (en) 2011-06-10 2016-11-15 The Procter & Gamble Company Method and apparatus for making absorbent structures with absorbent material
US11602467B2 (en) 2011-06-10 2023-03-14 The Procter & Gamble Company Absorbent structure for absorbent articles
US9173784B2 (en) 2011-06-10 2015-11-03 The Procter & Gamble Company Disposable diaper having reduced absorbent core to backsheet gluing
US9974699B2 (en) 2011-06-10 2018-05-22 The Procter & Gamble Company Absorbent core for disposable absorbent articles
US10517777B2 (en) 2011-06-10 2019-12-31 The Procter & Gamble Company Disposable diaper having first and second absorbent structures and channels
US10561546B2 (en) 2011-06-10 2020-02-18 The Procter & Gamble Company Absorbent structure for absorbent articles
US11110011B2 (en) 2011-06-10 2021-09-07 The Procter & Gamble Company Absorbent structure for absorbent articles
US11000422B2 (en) 2011-06-10 2021-05-11 The Procter & Gamble Company Method and apparatus for making absorbent structures with absorbent material
US10893987B2 (en) 2011-06-10 2021-01-19 The Procter & Gamble Company Disposable diapers with main channels and secondary channels
US10130525B2 (en) 2011-06-10 2018-11-20 The Procter & Gamble Company Absorbent structure for absorbent articles
US10813794B2 (en) 2011-06-10 2020-10-27 The Procter & Gamble Company Method and apparatus for making absorbent structures with absorbent material
US10149788B2 (en) 2011-06-10 2018-12-11 The Procter & Gamble Company Disposable diapers
US10245188B2 (en) 2011-06-10 2019-04-02 The Procter & Gamble Company Method and apparatus for making absorbent structures with absorbent material
US10449097B2 (en) 2012-11-13 2019-10-22 The Procter & Gamble Company Absorbent articles with channels and signals
US9532910B2 (en) 2012-11-13 2017-01-03 The Procter & Gamble Company Absorbent articles with channels and signals
US9216118B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels and/or pockets
US9216116B2 (en) 2012-12-10 2015-12-22 The Procter & Gamble Company Absorbent articles with channels
US9375358B2 (en) 2012-12-10 2016-06-28 The Procter & Gamble Company Absorbent article with high absorbent material content
US8979815B2 (en) 2012-12-10 2015-03-17 The Procter & Gamble Company Absorbent articles with channels
US10022280B2 (en) 2012-12-10 2018-07-17 The Procter & Gamble Company Absorbent article with high absorbent material content
US9713557B2 (en) 2012-12-10 2017-07-25 The Procter & Gamble Company Absorbent article with high absorbent material content
US9713556B2 (en) 2012-12-10 2017-07-25 The Procter & Gamble Company Absorbent core with high superabsorbent material content
US10639215B2 (en) 2012-12-10 2020-05-05 The Procter & Gamble Company Absorbent articles with channels and/or pockets
US10071002B2 (en) 2013-06-14 2018-09-11 The Procter & Gamble Company Absorbent article and absorbent core forming channels when wet
US9789011B2 (en) 2013-08-27 2017-10-17 The Procter & Gamble Company Absorbent articles with channels
US9987176B2 (en) 2013-08-27 2018-06-05 The Procter & Gamble Company Absorbent articles with channels
US11759376B2 (en) 2013-08-27 2023-09-19 The Procter & Gamble Company Absorbent articles with channels
US10736794B2 (en) 2013-08-27 2020-08-11 The Procter & Gamble Company Absorbent articles with channels
US10765567B2 (en) 2013-08-27 2020-09-08 The Procter & Gamble Company Absorbent articles with channels
US11612523B2 (en) 2013-08-27 2023-03-28 The Procter & Gamble Company Absorbent articles with channels
US11406544B2 (en) 2013-08-27 2022-08-09 The Procter & Gamble Company Absorbent articles with channels
US10335324B2 (en) 2013-08-27 2019-07-02 The Procter & Gamble Company Absorbent articles with channels
US10292875B2 (en) 2013-09-16 2019-05-21 The Procter & Gamble Company Absorbent articles with channels and signals
US11207220B2 (en) 2013-09-16 2021-12-28 The Procter & Gamble Company Absorbent articles with channels and signals
US11957551B2 (en) 2013-09-16 2024-04-16 The Procter & Gamble Company Absorbent articles with channels and signals
US10130527B2 (en) 2013-09-19 2018-11-20 The Procter & Gamble Company Absorbent cores having material free areas
US11944526B2 (en) 2013-09-19 2024-04-02 The Procter & Gamble Company Absorbent cores having material free areas
US11154437B2 (en) 2013-09-19 2021-10-26 The Procter & Gamble Company Absorbent cores having material free areas
US10675187B2 (en) 2013-12-19 2020-06-09 The Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator
US10137039B2 (en) 2013-12-19 2018-11-27 The Procter & Gamble Company Absorbent cores having channel-forming areas and C-wrap seals
US11191679B2 (en) 2013-12-19 2021-12-07 The Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator
US10828206B2 (en) 2013-12-19 2020-11-10 Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator
US9789009B2 (en) 2013-12-19 2017-10-17 The Procter & Gamble Company Absorbent articles having channel-forming areas and wetness indicator
US11090199B2 (en) 2014-02-11 2021-08-17 The Procter & Gamble Company Method and apparatus for making an absorbent structure comprising channels
US11510829B2 (en) 2014-05-27 2022-11-29 The Procter & Gamble Company Absorbent core with absorbent material pattern
US10507144B2 (en) 2015-03-16 2019-12-17 The Procter & Gamble Company Absorbent articles with improved strength
US10322040B2 (en) 2015-03-16 2019-06-18 The Procter & Gamble Company Absorbent articles with improved cores
US10736795B2 (en) 2015-05-12 2020-08-11 The Procter & Gamble Company Absorbent article with improved core-to-backsheet adhesive
US11918445B2 (en) 2015-05-12 2024-03-05 The Procter & Gamble Company Absorbent article with improved core-to-backsheet adhesive
US10543129B2 (en) 2015-05-29 2020-01-28 The Procter & Gamble Company Absorbent articles having channels and wetness indicator
US11497657B2 (en) 2015-05-29 2022-11-15 The Procter & Gamble Company Absorbent articles having channels and wetness indicator
US10632029B2 (en) 2015-11-16 2020-04-28 The Procter & Gamble Company Absorbent cores having material free areas
US11123240B2 (en) 2016-04-29 2021-09-21 The Procter & Gamble Company Absorbent core with transversal folding lines
US10842690B2 (en) 2016-04-29 2020-11-24 The Procter & Gamble Company Absorbent core with profiled distribution of absorbent material

Similar Documents

Publication Publication Date Title
JP2011000480A (en) Absorptive article
JP2007152033A (en) Absorbent article
JP4953618B2 (en) Absorbent articles
JP4913381B2 (en) Absorbent articles
JP4587947B2 (en) Absorbent articles
JP5979983B2 (en) Absorbent article and manufacturing method thereof
US10071000B2 (en) Absorbent article
JP5294837B2 (en) Absorbent articles
EP3692965B1 (en) Absorbent article
JP2010221067A (en) Absorbent article
WO2015190547A1 (en) Absorbent product
JP2010246614A (en) Absorptive article
JP4771794B2 (en) Absorbent articles
JP2016049199A (en) Absorbent article
JP5432753B2 (en) Absorbent articles
JP2013215388A (en) Absorbent article
JP6275364B1 (en) Absorbent articles
JP2014200446A (en) Nonwoven fabric for diaper, and diaper using the same
JP6320827B2 (en) Absorbent articles
JP6073619B2 (en) Absorbent articles
JP2012000516A (en) Absorptive article
CN110177529B (en) Absorbent article
JP5944953B2 (en) Absorbent articles
JP2016002100A5 (en)
JP5944951B2 (en) Absorbent articles

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20101005

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20101026

A975 Report on accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A971005

Effective date: 20101110

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101124

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110124

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110412

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110613

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20110705

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20111005

A911 Transfer of reconsideration by examiner before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20111014

A912 Removal of reconsideration by examiner before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A912

Effective date: 20111209