JP2022150679A - folded absorbent article - Google Patents

folded absorbent article Download PDF

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JP2022150679A
JP2022150679A JP2021053386A JP2021053386A JP2022150679A JP 2022150679 A JP2022150679 A JP 2022150679A JP 2021053386 A JP2021053386 A JP 2021053386A JP 2021053386 A JP2021053386 A JP 2021053386A JP 2022150679 A JP2022150679 A JP 2022150679A
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Prior art keywords
elastic member
free end
absorbent article
side elastic
base
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JP2021053386A
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JP7169391B2 (en
Inventor
勇樹 高橋
Yuuki Takahashi
慎吾 武田
Shingo Takeda
嶺 伊藤
Rei Ito
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Livedo Corp
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Livedo Corp
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Priority to JP2021053386A priority Critical patent/JP7169391B2/en
Priority to CN202123137891.XU priority patent/CN217186763U/en
Priority to DE202022000020.0U priority patent/DE202022000020U1/en
Publication of JP2022150679A publication Critical patent/JP2022150679A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47Sanitary towels, incontinence pads or napkins
    • A61F13/475Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • A61F13/4751Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
    • A61F13/4752Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means being an upstanding barrier
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007Form-fitting, self-adjusting disposable diapers
    • A61F13/49009Form-fitting, self-adjusting disposable diapers with elastic means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007Form-fitting, self-adjusting disposable diapers
    • A61F13/49009Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49017Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being located at the crotch region

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

To provide a folded absorbent article which is excellent in a lateral leakage prevention effect and excellent in wearing feeling.SOLUTION: There is provided a folded absorbent article 1, the absorbent article 1 has an absorber 4 arranged between a top sheet 2 and a back sheet 3. A standing flap 5 is provided on each of both sides of a skin face side of the absorbent article 1 in a width direction x, the standing flap 5 has a base part 5A being an origin of standing, and a free end 5B being a standing tip end, the absorbent article 1 is folded to the width direction x at a fold F1 formed on the position overlapped to the standing flap 5, in a state of directing to inside, the skin face side, and the standing flap 5 has a base part side elastic member 7A arranged closer to the base part 5A side relative to the fold F1. A free end side elastic member 7B is arranged closer to the free end 5B side relative to the fold F1, and the base part side elastic member 7A has shrinkage force greater than that of the free end side elastic member 7B.SELECTED DRAWING: Figure 1

Description

本発明は、テープタイプの使い捨ておむつや尿パッド等の吸収性物品が展開可能に折り畳まれることにより形成された折り畳まれた吸収性物品に関するものである。 TECHNICAL FIELD The present invention relates to a folded absorbent article formed by unfoldably folding an absorbent article such as a tape-type disposable diaper or urine pad.

従来、尿等の横漏れを防ぐために、肌面側の幅方向の両側に立ち上がりフラップが設けられた吸収性物品が知られている。このような吸収性物品は、使用前、幅方向や前後方向に折り畳まれてコンパクトな状態で包装容器内に収容されている場合が多い。例えば特許文献1~3には、テープタイプの使い捨ておむつや尿パッドなどの展開型の吸収性物品であって、肌面側に立ち上がりフラップが設けられ、幅方向に3つ折りした後、さらに前後方向に3つ折りすることにより折り畳まれた吸収性物品が開示されている。 Conventionally, there has been known an absorbent article provided with rising flaps on both sides in the width direction of the skin surface side in order to prevent lateral leakage of urine or the like. Before use, such absorbent articles are often folded in the width direction and the front-rear direction and housed in a packaging container in a compact state. For example, Patent Documents 1 to 3 disclose a deployment type absorbent article such as a tape-type disposable diaper or a urine pad, in which a rising flap is provided on the skin surface side, and after being folded in three in the width direction, further in the front-back direction. An absorbent article is disclosed that is folded by folding in three.

特開2004-041307号公報Japanese Patent Application Laid-Open No. 2004-041307 特開2015-157047号公報JP 2015-157047 A 特開2015-202206号公報JP 2015-202206 A

吸収性物品は、肌面側に立ち上がりフラップが設けられることにより、着用者から***された尿等の横漏れを防止することができるが、より高い横漏れ防止性能を有し、着用感に優れるものであればなお好ましい。本発明は前記事情に鑑みてなされたものであり、その目的は、折り畳まれた吸収性物品であって、横漏れ防止効果に優れるとともに、着用感に優れた吸収性物品を提供することにある。 The absorbent article can prevent lateral leakage of excreted urine or the like from the wearer by providing the rising flap on the skin surface side, and has a higher lateral leakage prevention performance and is excellent in wearing comfort. Anything is more preferable. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a folded absorbent article that is excellent in preventing side leakage and is comfortable to wear. .

前記課題を解決することができた本発明の吸収性物品とは、折り畳まれた吸収性物品であって;吸収性物品は、幅方向と前後方向を有し、トップシートとバックシートの間に吸収体が配されて構成され;吸収性物品の肌面側の幅方向の両側には立ち上がりフラップが設けられ、立ち上がりフラップは、立ち上がりの起点となる基部と立ち上がった先端となる自由端を有し;吸収性物品は、肌面側を内側にして、立ち上がりフラップと重なる位置に形成された折り目で幅方向に折り返されており;立ち上がりフラップには、折り目よりも基部側に基部側弾性部材が設けられ、折り目よりも自由端側に自由端側弾性部材が設けられ、基部側弾性部材が自由端側弾性部材よりも強い収縮力で設けられているところに特徴を有する。 The absorbent article of the present invention that can solve the above problems is a folded absorbent article; An absorbent body is arranged; rising flaps are provided on both sides in the width direction of the skin surface side of the absorbent article, and the rising flaps have a base that is the starting point of the rising and a free end that is the rising tip. ;The absorbent article is folded back in the width direction with the skin side facing inward at a fold formed at a position overlapping the rising flap;The rising flap is provided with a base-side elastic member on the base side of the fold. It is characterized in that the free end side elastic member is provided on the free end side of the crease, and the base side elastic member is provided with a stronger contractile force than the free end side elastic member.

本発明の吸収性物品は、折り畳まれた状態で、立ち上がりフラップと重なる位置で折り返されているため、立ち上がりフラップに折り癖が付与されやすくなる。そのため、使用の際に吸収性物品の折り畳みを展開すると、立ち上がりフラップは折り癖が付いたまま起立しやすくなる。この際、立ち上がりフラップの折り目よりも自由端側の部分は、自由端側弾性部材が比較的弱い収縮力で設けられることにより、立ち上がりフラップが起立した際に着用者の肌にソフトに当たりやすくなる。また、立ち上がりフラップに折り癖が付与されることにより、立ち上がりフラップの折り目よりも自由端側の部分が着用者の肌に面状に当たりやすくなる。一方、立ち上がりフラップの折り目よりも基部側の部分は、基部側弾性部材が比較的強い収縮力で設けられることにより、好適に起立しやすくなる。そのため本発明の吸収性物品は、横漏れ防止効果に優れるとともに、着用感に優れるものとなる。 Since the absorbent article of the present invention in a folded state is folded back at a position overlapping the rising flaps, the rising flaps are likely to have a crease. Therefore, when the absorbent article is unfolded during use, the rising flaps tend to stand up with their creases. At this time, since the free end side elastic member is provided with a relatively weak contractile force in the portion on the free end side of the folding line of the rising flap, when the rising flap is raised, it is easy to touch the wearer's skin softly. In addition, by imparting a crease to the rising flaps, the portion of the rising flaps on the free end side of the crease tends to come into contact with the wearer's skin in a planar manner. On the other hand, the portion closer to the base side than the crease of the rising flap is provided with a relatively strong contractile force of the base-side elastic member, so that the portion can be preferably easily raised. Therefore, the absorbent article of the present invention is excellent in the effect of preventing side leakage and is comfortable to wear.

基部側弾性部材の本数は自由端側弾性部材の本数よりも多いことが好ましい。これにより、簡便に基部側弾性部材を自由端側弾性部材よりも強い収縮力で設けることができる。 The number of base-side elastic members is preferably greater than the number of free-end-side elastic members. As a result, the base side elastic member can be easily provided with a stronger contractile force than the free end side elastic member.

基部側弾性部材と自由端側弾性部材の間の離隔距離は、基部側弾性部材間の離隔距離よりも長いことが好ましい。このように基部側弾性部材が設けられていれば、複数本設けられた基部側弾性部材が一体的に収縮力を発揮しやすくなり、立ち上がりフラップが高く起立しやすくなる。 It is preferable that the separation distance between the base side elastic member and the free end side elastic member is longer than the separation distance between the base side elastic members. If the base-side elastic member is provided in this manner, the plurality of base-side elastic members provided can easily exert a contractile force in an integrated manner, and the rising flap can be easily raised.

立ち上がりフラップには、基部側弾性部材と自由端側弾性部材として弾性部材が3本以上設けられ、立ち上がりフラップに設けられた弾性部材間の離隔距離は、自由端側の方が基部側よりも広くなるように形成されていることも好ましい。このように立ち上がりフラップに弾性部材が設けられていれば、立ち上がりフラップが基部側で高く起立しやすくなるとともに、自由端側で着用者の肌にソフトに当たりやすくなる。 The rising flap is provided with three or more elastic members as a base side elastic member and a free end side elastic member, and the separation distance between the elastic members provided on the rising flap is wider on the free end side than on the base side. It is also preferable to be formed so as to be If the rise flap is provided with an elastic member in this way, the base side of the rise flap can easily stand up high, and the free end side of the rise flap can easily touch the wearer's skin softly.

基部側弾性部材は、基部よりも自由端の近くに配されていることが好ましい。このように基部側弾性部材が配されていれば、立ち上がりフラップが基部側弾性部材の収縮力によって高く起立しやすくなる。 The base-side elastic member is preferably arranged closer to the free end than to the base. If the base-side elastic member is arranged in this manner, the rising flap can be easily raised by the contractile force of the base-side elastic member.

自由端側弾性部材は、折り目よりも自由端の近くに配されていることが好ましい。このように自由端側弾性部材が設けられていれば、立ち上がりフラップが起立した際、立ち上がりフラップの自由端側の部分が着用者の肌に面状に当たりやすくなる。また、自由端側弾性部材が折り目からある程度離れた位置に設けられることにより、立ち上がりフラップに折り目による折り癖が付与されやすくなる。 It is preferable that the free end side elastic member is arranged closer to the free end than the crease. If the free end side elastic member is provided in this way, when the rising flap is raised, the portion on the free end side of the rising flap is likely to come into planar contact with the wearer's skin. In addition, since the free end side elastic member is provided at a position separated from the crease to some extent, the rising flap is likely to have a crease due to the crease.

立ち上がりフラップは、基部から幅方向の内方に向かって立ち上がるように形成されていることが好ましい。このように立ち上がりフラップが形成されていれば、立ち上がりフラップが起立した際に、立ち上がりフラップの自由端側の部分が幅方向の外方に開いて着用者の肌に面状に当たりやすくなり、着用感が向上する。 It is preferable that the rising flap is formed to rise inward in the width direction from the base. If the rising flap is formed in this way, when the rising flap is raised, the portion on the free end side of the rising flap opens outward in the width direction and easily comes into contact with the wearer's skin in a planar manner, resulting in a comfortable feeling of wearing. improves.

基部側弾性部材と自由端側弾性部材は、立ち上がりフラップの倒伏状態において、全体が吸収体と重なる位置に配されていることが好ましい。このように基部側弾性部材と自由端側弾性部材が配されていれば、吸収性物品が立ち上がりフラップと重なる位置で折り返されることにより、立ち上がりフラップに折り癖が好適に付与されやすくなる。 It is preferable that the base side elastic member and the free end side elastic member are arranged at a position where the whole overlaps with the absorber when the rising flap is laid down. When the base side elastic member and the free end side elastic member are arranged in this manner, the absorbent article is folded back at the position overlapping the rising flaps, so that the rising flaps are likely to be favorably given a crease.

基部側弾性部材と自由端側弾性部材は、接着剤により立ち上がりフラップに取り付けられており、基部側弾性部材の接着剤量は自由端側弾性部材の接着剤量よりも多いことが好ましい。これにより、立ち上がりフラップの折り目よりも基部側の部分が好適に起立しやすくなる。一方、立ち上がりフラップの折り目よりも自由端側の部分は、自由端側弾性部材の接着剤量が少ないことにより柔軟に形成され、着用者の肌への当たりをソフトにすることができる。 The base side elastic member and the free end side elastic member are attached to the rising flap with an adhesive, and the amount of adhesive for the base side elastic member is preferably larger than that for the free end side elastic member. As a result, the portion closer to the base than the crease of the rising flap can be easily raised. On the other hand, the portion on the free end side of the folding line of the rising flap is formed flexibly due to the small amount of adhesive in the free end elastic member, and can be soft against the wearer's skin.

吸収性物品は、幅方向に折り返された状態からさらに前後方向に折りされていてもよい。これにより、折り畳まれた吸収性物品をコンパクトに形成することができる。 The absorbent article may be further folded in the front-rear direction after being folded back in the width direction. Thereby, the folded absorbent article can be formed compactly.

本発明の吸収性物品は、立ち上がりフラップと重なる位置で折り返されて、基部側弾性部材が自由端側弾性部材よりも強い収縮力で設けられているため、使用の際に、立ち上がりフラップと重なる位置での折り返しを展開すると、立ち上がりフラップが好適に起立しやすくなるとともに、立ち上がりフラップの自由端側が着用者の肌にソフトに当たりやすくなる。そのため、横漏れ防止効果に優れるとともに、着用感に優れるものとなる。 The absorbent article of the present invention is folded back at the position overlapping the rising flaps, and the base side elastic member is provided with a stronger contractile force than the free end side elastic member. By unfolding the folded back at , the rising flaps can be preferably easily raised, and the free end side of the rising flaps can be softly touched against the wearer's skin. Therefore, the side leakage prevention effect is excellent, and the feeling of wearing is excellent.

本発明の吸収性物品の一例を示し、吸収性物品(尿パッド)を肌面側から見た平面図を表す。An example of the absorbent article of this invention is shown, and the top view which looked at the absorbent article (urinary pad) from the skin surface side is represented. 図1に示した吸収性物品のII-II断面図を表し、立ち上がりフラップが倒伏した状態を表す。FIG. 2 shows a II-II cross-sectional view of the absorbent article shown in FIG. 1, showing a state in which the rising flap is laid down. 図2に示した吸収性物品の断面図において、立ち上がりフラップが起立した状態を表す。The cross-sectional view of the absorbent article shown in FIG. 2 shows a state in which the rising flap is raised. 図1に示した吸収性物品を幅方向に3つ折りした状態の平面図を表す。The top view of the state which folded the absorbent article shown in FIG. 1 into 3 in the width direction is represented. 図4に示した吸収性物品をさらに前後方向に3つ折りした状態の斜視図を表す。FIG. 5 is a perspective view showing a state in which the absorbent article shown in FIG. 4 is further folded into three in the front-rear direction;

本発明は、折り畳まれた吸収性物品に関するものであり、詳細には、テープタイプの使い捨ておむつや尿パッドなど、装着する際に平面状に広げて用いられるいわゆる展開型(オープンタイプ)の吸収性物品であって、当該吸収性物品が折り返されることにより形成された折り畳まれた吸収性物品に関するものである。 TECHNICAL FIELD The present invention relates to a folded absorbent article, and more specifically, a so-called unfolded (open type) absorbent article such as a tape-type disposable diaper or a urine pad that is spread flat when worn. An article, which relates to a folded absorbent article formed by folding the absorbent article.

まず、本発明で用いられる吸収性物品の基本構成について、図面を参照して説明する。図面では、吸収性物品の一例として尿パッドが示されている。なお本発明は、図面に示された実施態様に限定されるものではない。 First, the basic configuration of the absorbent article used in the present invention will be described with reference to the drawings. In the drawings, a urine pad is shown as an example of an absorbent article. The invention is not limited to the embodiments shown in the drawings.

図1は、吸収性物品を肌面側から見た平面図を表し、図2は、図1に示した吸収性物品のII-II断面図であって、立ち上がりフラップが倒伏した状態を表し、図3は、図2に示した吸収性物品の断面図において、立ち上がりフラップが起立した状態を表す。本願の図では、矢印xが幅方向、矢印yが前後方向を表し、矢印x,yにより形成される面に対して垂直方向が厚み方向zを表す。図1では、図面の上側が吸収性物品の前側に相当し、図面の下側が吸収性物品の後側に相当する。 1 is a plan view of the absorbent article viewed from the skin surface side, and FIG. 2 is a II-II cross-sectional view of the absorbent article shown in FIG. FIG. 3 shows a state in which the rising flap is raised in the cross-sectional view of the absorbent article shown in FIG. In the drawings of the present application, the arrow x represents the width direction, the arrow y represents the front-rear direction, and the direction perpendicular to the plane formed by the arrows x and y represents the thickness direction z. In FIG. 1, the upper side of the drawing corresponds to the front side of the absorbent article, and the lower side of the drawing corresponds to the rear side of the absorbent article.

吸収性物品1は、トップシート2とバックシート3とこれらの間に設けられた吸収体4とを有する。トップシート2は吸収体4の肌面側に配され、吸収性物品1を着用した際に着用者側に位置するシートである。バックシート3は吸収体4の外面側に配され、吸収性物品1を着用した際に着用者とは反対側、すなわち外側に位置するシートである。着用者から***された尿等は、トップシート2を透過して吸収体4により収容される。バックシート3は、***物が外部へ漏れるのを防いでいる。 The absorbent article 1 has a top sheet 2, a back sheet 3, and an absorbent body 4 provided therebetween. The top sheet 2 is a sheet that is arranged on the skin surface side of the absorbent body 4 and positioned on the wearer's side when the absorbent article 1 is worn. The back sheet 3 is arranged on the outer surface side of the absorbent body 4 and is a sheet located on the opposite side, that is, on the outer side of the wearer when the absorbent article 1 is worn. Urine or the like excreted by the wearer passes through the top sheet 2 and is received by the absorbent body 4 . The back sheet 3 prevents excrement from leaking to the outside.

吸収性物品1は、前後方向yと幅方向xを有する。前後方向yとは、吸収性物品1を着用した際に着用者の股間の前後方向に延びる方向に相当する。幅方向xとは、吸収性物品1と同一面上にあり前後方向yと直交する方向を意味し、吸収性物品1を着用した際の着用者の左右方向に相当する。また、吸収性物品1の肌面側とは、吸収性物品1を着用した際の着用者の肌に向く側を意味し、吸収性物品1の外面側とは、吸収性物品1を着用した際の着用者とは反対に向く側を意味する。 The absorbent article 1 has a front-rear direction y and a width direction x. The front-rear direction y corresponds to the direction extending in the front-rear direction between the wearer's crotch when the absorbent article 1 is worn. The width direction x means a direction on the same plane as the absorbent article 1 and perpendicular to the front-rear direction y, and corresponds to the lateral direction of the wearer when wearing the absorbent article 1 . Further, the skin surface side of the absorbent article 1 means the side facing the skin of the wearer when the absorbent article 1 is worn, and the outer surface side of the absorbent article 1 means that the absorbent article 1 is worn. means the side facing away from the actual wearer.

トップシート2は液透過性であることが好ましい。トップシート2としては、例えば、セルロース、レーヨン、コットン等の親水性繊維から形成された不織布や、ポリオレフィン(例えば、ポリプロピレン、ポリエチレン)、ポリエステル(例えば、PET)、ポリアミド(例えば、ナイロン)等の疎水性繊維から形成された不織布であって、疎水性繊維の表面が界面活性剤により親水化されたもの等を用いることができる。また、トップシート2として、織布、編布、有孔プラスチックフィルム等を用いてもよい。 The topsheet 2 is preferably liquid permeable. The top sheet 2 may be, for example, a nonwoven fabric made of hydrophilic fibers such as cellulose, rayon, or cotton, or a hydrophobic material such as polyolefin (eg, polypropylene, polyethylene), polyester (eg, PET), polyamide (eg, nylon). A nonwoven fabric formed from hydrophobic fibers in which the surface of hydrophobic fibers is hydrophilized with a surfactant can be used. Moreover, as the top sheet 2, a woven fabric, a knitted fabric, a perforated plastic film, or the like may be used.

バックシート3は液不透過性であることが好ましい。バックシート3としては、ポリオレフィン(例えば、ポリプロピレン、ポリエチレン)、ポリエステル(例えば、PET)、ポリアミド(例えば、ナイロン)等の疎水性繊維から形成された不織布や、プラスチックフィルム等を用いることができる。バックシート3としては、不織布とプラスチックフィルムの積層体を用いてもよい。 The backsheet 3 is preferably liquid-impermeable. As the back sheet 3, a nonwoven fabric formed from hydrophobic fibers such as polyolefin (eg, polypropylene, polyethylene), polyester (eg, PET), polyamide (eg, nylon), plastic film, or the like can be used. As the back sheet 3, a laminate of a nonwoven fabric and a plastic film may be used.

上記に説明した各シート部材を構成する不織布としては、スパンボンド不織布、ポイントボンド不織布、エアスルー不織布、メルトブロー不織布、エアレイド不織布、スパンレース不織布、トウ開繊不織布、SMS不織布等を用いることができる。これらの各シートの単位面積あたりの質量は、8g/m以上が好ましく、10g/m以上がより好ましく、また40g/m以下が好ましく、30g/m以下がより好ましい。 As the nonwoven fabric constituting each sheet member described above, a spunbond nonwoven fabric, a point-bond nonwoven fabric, an air-through nonwoven fabric, a meltblown nonwoven fabric, an air-laid nonwoven fabric, a spunlaced nonwoven fabric, a tow-spread nonwoven fabric, an SMS nonwoven fabric, etc. can be used. The mass per unit area of each of these sheets is preferably 8 g/m 2 or more, more preferably 10 g/m 2 or more, and preferably 40 g/m 2 or less, more preferably 30 g/m 2 or less.

吸収体4は、尿等の***物を吸収できる吸収性材料を含むものであれば特に限定されない。吸収体4としては、例えば、吸収性材料を所定形状に成形した成形体を用いることができ、当該成形体は、紙シート(例えば、ティッシュペーパーや薄葉紙)や液透過性不織布等の被覆シートで覆われてもよい。吸収性材料としては、例えば、パルプ繊維等の親水性繊維や、ポリアクリル酸系、ポリアスパラギン酸系、セルロース系、デンプン・アクリロニトリル系等の吸水性樹脂等が挙げられる。また、吸水性材料には、ポリエチレン、ポリプロピレン等のポリオレフィン繊維や、PET等のポリエステル繊維、ポリアミド繊維等の熱融着性繊維が含まれてもよい。これらの熱融着性繊維は、尿等との親和性を高めるために、界面活性剤等により親水化処理がされていてもよい。 The absorber 4 is not particularly limited as long as it contains an absorbent material capable of absorbing excrement such as urine. As the absorbent body 4, for example, a molded body obtained by molding an absorbent material into a predetermined shape can be used. May be covered. Examples of absorbent materials include hydrophilic fibers such as pulp fibers, and water absorbent resins such as polyacrylic acid-based, polyaspartic acid-based, cellulose-based, and starch-acrylonitrile-based materials. The absorbent material may also include polyolefin fibers such as polyethylene and polypropylene, polyester fibers such as PET, and heat-fusible fibers such as polyamide fibers. These heat-fusible fibers may be hydrophilized with a surfactant or the like in order to increase affinity with urine or the like.

吸収性材料は、尿等の吸収速度を高める点から、親水性繊維を含むことが好ましい。また、吸収容量を高める点から、吸収性材料は吸水性樹脂を含むことが好ましい。従って、吸収体4は親水性繊維(特にパルプ繊維)と吸水性樹脂を含むことが好ましい。この場合、例えば、親水性繊維の集合体に吸水性樹脂を混合または散布したものを用いることが好ましい。 The absorbent material preferably contains hydrophilic fibers in order to increase the rate of absorption of urine and the like. Moreover, from the viewpoint of increasing the absorption capacity, the absorbent material preferably contains a water absorbent resin. Therefore, the absorber 4 preferably contains hydrophilic fibers (especially pulp fibers) and a water absorbent resin. In this case, it is preferable to use, for example, an aggregate of hydrophilic fibers mixed with or sprinkled with a water absorbent resin.

吸収体4はシート状吸収体であってもよい。シート状吸収体としては、不織布シート間に吸水性樹脂を有しパルプ繊維を有しないように形成されたものが挙げられる。このように形成されたシート状吸収体は、不織布シート間に吸水性樹脂を有するため、高い吸収容量を実現できるとともに、不織布シート間にパルプ繊維を有しないため、嵩張らず薄型に形成することができる。 The absorbent body 4 may be a sheet absorbent body. Examples of sheet-like absorbent bodies include those formed so as to contain a water-absorbing resin between non-woven fabric sheets and not contain pulp fibers. Since the sheet-like absorbent body thus formed has a water-absorbing resin between the nonwoven fabric sheets, it can achieve a high absorption capacity, and since it does not have pulp fibers between the nonwoven fabric sheets, it can be formed thin without being bulky. can.

吸収体4は複数層から構成されていてもよい。例えば、吸収体4は、上側吸収体と下側吸収体から構成されるものであってもよい。 The absorbent body 4 may be composed of multiple layers. For example, the absorbent body 4 may be composed of an upper absorbent body and a lower absorbent body.

吸収体4の形状(平面形状)は特に限定されず、例えば、長方形、砂時計形、羽子板形等が挙げられる。なお、吸収体4は、着用者の大腿部に挟まれて幅方向xに圧迫されても歪みにくくする点から、砂時計形に形成されることが好ましい。すなわち、吸収体4が前後方向yに前側部と後側部とこれらの間の中間部を有し、中間部が前側部と後側部よりも幅狭に形成されていることが好ましい。 The shape (planar shape) of the absorber 4 is not particularly limited, and examples thereof include a rectangular shape, an hourglass shape, and a battledore shape. In addition, it is preferable that the absorbent body 4 is formed in an hourglass shape from the viewpoint of making it difficult to be distorted even if it is sandwiched between the wearer's thighs and pressed in the width direction x. That is, it is preferable that the absorbent body 4 has a front side portion, a rear side portion, and an intermediate portion therebetween in the front-rear direction y, and the intermediate portion is formed narrower than the front side portion and the rear side portion.

吸収性物品1の肌面側には立ち上がりフラップ5が設けられる。立ち上がりフラップ5を設けることにより、尿等の横漏れが防止される。立ち上がりフラップ5には前後方向yに延びるフラップ弾性部材7が複数設けられ、フラップ弾性部材7の収縮力によって立ち上がりフラップ5の起立が促進される。 A rising flap 5 is provided on the skin side of the absorbent article 1 . By providing the rising flap 5, lateral leakage of urine or the like is prevented. A plurality of flap elastic members 7 extending in the front-rear direction y are provided on the rising flap 5 , and the contractile force of the flap elastic members 7 promotes the rising of the rising flap 5 .

立ち上がりフラップ5は、立ち上がりの起点となる基部5Aと立ち上がりの先端となる自由端5Bを有し、基部5Aと自由端5Bの間にフラップ弾性部材7が設けられる。図2および図3では、立ち上がりフラップ5の基部5Aがトップシート2に接合されているが、立ち上がりフラップ5の基部5Aは、例えば幅方向xの両側部が吸収体4の肌面側に折り返されたバックシート3に接合されてもよく、これらの両方に接合されてもよい。 The rising flap 5 has a base portion 5A that serves as a starting point for rising and a free end 5B that serves as a leading end of the rising, and a flap elastic member 7 is provided between the base portion 5A and the free end 5B. 2 and 3, the base portion 5A of the rise flap 5 is joined to the top sheet 2, but the base portion 5A of the rise flap 5 is folded back toward the skin surface of the absorbent body 4 at both sides in the width direction x, for example. It may be joined to the back sheet 3 or to both of them.

立ち上がりフラップ5は、例えば、トップシート2の幅方向xの両側に設けられたサイドシート6によって形成することができる。この場合、トップシート2の幅方向xの両側にサイドシート6を接合し、サイドシート6のトップシート2との接合部より幅方向xの内方部分を立ち上がりフラップ5とすることができる。立ち上がりフラップ5またはサイドシート6は、液不透過性のプラスチックフィルムや液不透過性の不織布等により構成されることが好ましく、例えばバックシート3に使用可能なシート材料から構成することができる。 The rising flaps 5 can be formed, for example, by side sheets 6 provided on both sides of the top sheet 2 in the width direction x. In this case, the side sheets 6 can be joined to both sides of the top sheet 2 in the width direction x, and the inner portion in the width direction x of the joint portion of the side sheet 6 with the top sheet 2 can be used as the rising flap 5 . The rising flap 5 or the side sheet 6 is preferably composed of a liquid-impermeable plastic film, a liquid-impermeable nonwoven fabric, or the like, and can be composed of a sheet material that can be used for the back sheet 3, for example.

フラップ弾性部材7は、伸張状態で立ち上がりフラップ5に取り付けられることが好ましい。これにより、フラップ弾性部材7の収縮力によって立ち上がりフラップ5が起立しやすくなる。フラップ弾性部材7は、接着剤等の公知の接合手段により立ち上がりフラップ5に固定される。フラップ弾性部材7は伸張倍率1.2倍以上5.0倍以下で取り付けられることが好ましく、当該伸張倍率は1.5倍以上がより好ましく、1.8倍以上がさらに好ましく、また4.0倍以下がより好ましく、3.5倍以下がさらに好ましい。ここで説明した伸張倍率は、非伸張状態を1.0倍とする。フラップ弾性部材7としては、ポリウレタン糸、ポリウレタンフィルム、天然ゴム等の通常の吸収性物品に用いられる弾性伸縮材料を用いることができる。 The flap elastic member 7 is preferably attached to the stand-up flap 5 in a stretched state. As a result, the contractile force of the flap elastic member 7 makes it easier for the rising flap 5 to stand up. The flap elastic member 7 is fixed to the rising flap 5 by a known bonding means such as an adhesive. The flap elastic member 7 is preferably attached at an extension ratio of 1.2 times or more and 5.0 times or less, more preferably 1.5 times or more, further preferably 1.8 times or more, and 4.0 times. It is more preferably 3.5 times or less, more preferably 3.5 times or less. The expansion ratio described here is 1.0 times in the non-expanded state. As the flap elastic member 7, an elastic stretchable material such as polyurethane thread, polyurethane film, natural rubber, or the like, which is used in ordinary absorbent articles, can be used.

吸収性物品1は、肌面側を内側にして、立ち上がりフラップ5と重なる位置に形成された折り目F1で幅方向xに折り返されている。吸収性物品1は例えば、図1に示すように平面状に広げた状態から、肌面側を内側にして立ち上がりフラップ5と重なる位置に形成された折り目F1で折り返され、図4に示すように幅方向xに3つ折りされる。なお、折り目F1は、立ち上がりフラップ5が倒伏した状態で、立ち上がりフラップ5と重なる位置に形成される。 The absorbent article 1 is folded back in the width direction x at a fold line F1 formed at a position overlapping the rising flap 5 with the skin side facing inward. For example, as shown in FIG. 1, the absorbent article 1 is folded back at a fold line F1 formed at a position overlapping the rising flap 5 with the skin surface side facing inward from a flat state as shown in FIG. It is folded in three in the width direction x. The fold line F1 is formed at a position overlapping the rising flap 5 when the rising flap 5 is laid down.

折り目F1は略前後方向yに延びるように形成されていればよく、このとき、折り目F1は前後方向yに対して±10°以内の角度で延在していることが好ましく、±5°以内がより好ましい。このように折り目F1が形成されていれば、吸収性物品1が略矩形状に折り畳まれやすくなり、折り畳まれた吸収性物品1の取り扱い性が向上する。 The fold line F1 may be formed so as to extend substantially in the front-rear direction y. At this time, the fold line F1 preferably extends at an angle of ±10° or less with respect to the front-rear direction y, and within ±5°. is more preferred. If the fold line F1 is formed in this way, the absorbent article 1 can be easily folded into a substantially rectangular shape, and the handleability of the folded absorbent article 1 is improved.

立ち上がりフラップ5において、折り目F1は、複数のフラップ弾性部材7の間に形成される。なお、フラップ弾性部材7のうち、折り目F1よりも基部5A側に設けられるものを基部側弾性部材7Aと称し、折り目F1よりも自由端5B側に設けられるものを自由端側弾性部材7Bと称する。このように立ち上がりフラップ5には、フラップ弾性部材7として、折り目F1より基部5A側に基部側弾性部材7Aが設けられ、折り目F1よりも自由端5B側に自由端側弾性部材7Bが設けられる。基部側弾性部材7Aと自由端側弾性部材7Bはそれぞれ1本のみ設けられてもよく、複数本設けられてもよい。図面に示した吸収性物品1では、1つの立ち上がりフラップ5に、基部側弾性部材7Aが2本設けられ、自由端側弾性部材7Bが1本設けられている。 In the rising flap 5, a fold line F1 is formed between a plurality of flap elastic members 7. As shown in FIG. Among the flap elastic members 7, those provided closer to the base portion 5A than the fold line F1 are referred to as base portion side elastic members 7A, and those provided closer to the free end 5B than the fold line F1 are referred to as free end side elastic members 7B. . Thus, the rising flap 5 is provided with a base side elastic member 7A as the flap elastic member 7 on the base side 5A side of the fold line F1, and a free end side elastic member 7B on the free end side 5B side of the fold line F1. Only one each of the base side elastic member 7A and the free end side elastic member 7B may be provided, or a plurality of them may be provided. In the absorbent article 1 shown in the drawings, one rising flap 5 is provided with two base side elastic members 7A and one free end side elastic member 7B.

フラップ弾性部材7は、基部側弾性部材7Aが自由端側弾性部材7Bよりも強い収縮力で設けられている。吸収性物品1はこのように形成されることにより、使用の際に折り目F1での折り畳みを展開すると、立ち上がりフラップ5が好適に起立しやすくなるとともに、立ち上がりフラップ5の自由端5B側が着用者の肌にソフトに当たりやすくなる。そのため、横漏れ防止効果に優れるとともに、着用感に優れるものとなる。 In the flap elastic member 7, the base side elastic member 7A is provided with a stronger contractile force than the free end side elastic member 7B. By forming the absorbent article 1 in this manner, when the folded portion at the fold line F1 is unfolded during use, the rising flap 5 can be preferably easily raised, and the free end 5B side of the rising flap 5 can be placed on the wearer's body. Soft and easy to touch the skin. Therefore, the side leakage prevention effect is excellent, and the feeling of wearing is excellent.

これについて詳しく説明すると、吸収性物品1は、折り畳まれた状態で、立ち上がりフラップ5が折り目F1で折り返されているため、立ち上がりフラップ5に折り目F1の折り癖が付与されやすくなる。そのため、吸収性物品1の折り畳みを展開して折り目F1での折り返しを広げると、図3に示すように立ち上がりフラップ5は折り目F1での折り癖が付いたまま起立しやすくなる。この際、立ち上がりフラップ5の折り目F1よりも自由端5B側の部分は、自由端側弾性部材7Bが比較的弱い収縮力で設けられることにより、立ち上がりフラップ5が起立した際に着用者の肌にソフトに当たりやすくなり、着用感に優れるものとなる。また、立ち上がりフラップ5に折り癖が付与されることにより、立ち上がりフラップ5の折り目F1よりも自由端5B側の部分が着用者の肌に面状に当たりやすくなる。一方、基部側弾性部材7Aは比較的強い収縮力で設けられることにより、立ち上がりフラップ5は折り目F1よりも基部5A側の部分が好適に起立しやすくなる。そのため、吸収性物品1は、横漏れ防止効果に優れるとともに、着用感に優れるものとなる。 More specifically, when the absorbent article 1 is folded, the rising flaps 5 are folded back at the fold lines F1, so that the rising flaps 5 are likely to have the crease of the fold lines F1. Therefore, when the folded absorbent article 1 is unfolded and the folding at the fold line F1 is widened, the rising flap 5 tends to stand up with the crease at the fold line F1 as shown in FIG. At this time, the portion of the rising flap 5 closer to the free end 5B than the folding line F1 is provided with a relatively weak contractile force of the free end side elastic member 7B, so that when the rising flap 5 is raised, the wearer's skin does not touch it. It becomes easy to touch softly and is excellent in wearing feeling. In addition, by imparting a crease to the rising flap 5, the portion of the rising flap 5 closer to the free end 5B than the folding line F1 is likely to come into contact with the wearer's skin in a planar manner. On the other hand, since the base-side elastic member 7A is provided with a relatively strong contractile force, the portion of the rising flap 5 closer to the base 5A than the fold line F1 is preferably and easily raised. Therefore, the absorbent article 1 is excellent in the effect of preventing side leakage and is excellent in wearing feeling.

基部側弾性部材7Aと自由端側弾性部材7Bの収縮力は、各弾性部材が複数本設けられている場合は、複数本合わせた収縮力を意味する。基部側弾性部材7Aの収縮力と自由端側弾性部材7Bの収縮力は、次のように測定する。吸収性物品1から立ち上がりフラップ5を取り出し、立ち上がりフラップ5を折り目F1で切断し、基部5A側の部分と自由端5B側の部分に分ける。立ち上がりフラップ5の基部5A側の部分について、前後方向yの端部に基部側弾性部材7Aが存在しない部分がある場合は、当該部分を切除して測定用の試験片とする。立ち上がりフラップ5の自由端5B側の部分について、前後方向yの端部に自由端側弾性部材7Bが存在しない部分がある場合は、当該部分を切除して測定用の試験片とする。立ち上がりフラップ5の基部5A側の部分または自由端5B側の部分の各試験片を前後方向yに完全に広げて基部側弾性部材7Aまたは自由端側弾性部材7Bを伸張させて、そのときの収縮力(伸張応力)を測定し、これにより各弾性部材の収縮力を求める。収縮力の測定には、引張試験機を用いることができる。 The contractile force of the base side elastic member 7A and the free end side elastic member 7B means the combined contractive force of the plurality of elastic members when a plurality of each elastic member is provided. The contractile force of the base side elastic member 7A and the contractile force of the free end side elastic member 7B are measured as follows. The rising flap 5 is taken out from the absorbent article 1, and the rising flap 5 is cut along the crease F1 to be divided into a portion on the side of the base portion 5A and a portion on the side of the free end 5B. If there is a portion where the base portion side elastic member 7A does not exist at the end portion in the front-rear direction y of the portion of the rising flap 5 on the side of the base portion 5A, the portion is excised and used as a test piece for measurement. Regarding the portion of the rising flap 5 on the free end 5B side, if there is a portion where the free end side elastic member 7B does not exist at the end in the front-rear direction y, the portion is excised and used as a test piece for measurement. Each test piece of the part on the side of the base part 5A or the part on the side of the free end 5B of the rising flap 5 is completely spread in the front-rear direction y to stretch the base part side elastic member 7A or the free end side elastic member 7B, and contract at that time. The force (stretching stress) is measured, which determines the contractile force of each elastic member. A tensile tester can be used to measure the contractile force.

基部側弾性部材7Aを自由端側弾性部材7Bよりも強い収縮力で設けるためには、例えば、基部側弾性部材7Aを自由端側弾性部材7Bよりも高い伸張倍率で立ち上がりフラップ5に固定すればよい。また、基部側弾性部材7Aとして、自由端側弾性部材7Bよりも高い引張弾性率を有する弾性部材を用いてもよい。この場合、自由端側弾性部材7Bと基部側弾性部材7Aとして、互いに異なる素材からなる弾性部材を用いてもよいし、自由端側弾性部材7Bと基部側弾性部材7Aが同じ素材からなる弾性部材であって、自由端側弾性部材7Bよりも基部側弾性部材7Aの繊度(単位長さ質量)を増やしてもよい。 In order to provide the base-side elastic member 7A with a stronger contractile force than the free-end-side elastic member 7B, for example, the base-side elastic member 7A may be fixed to the rising flap 5 at a higher expansion ratio than the free-end-side elastic member 7B. good. Also, an elastic member having a higher tensile elastic modulus than the free end elastic member 7B may be used as the base elastic member 7A. In this case, elastic members made of different materials may be used as the free end side elastic member 7B and the base side elastic member 7A, or the free end side elastic member 7B and the base side elastic member 7A may be made of the same material. Further, the fineness (unit length mass) of the base side elastic member 7A may be larger than that of the free end side elastic member 7B.

立ち上がりフラップ5に設ける基部側弾性部材7Aの本数を自由端側弾性部材7Bの本数よりも多くすることにより、基部側弾性部材7Aを自由端側弾性部材7Bよりも強い収縮力で設けることもできる。この場合、たとえ1本1本の弾性部材が同じ収縮力で立ち上がりフラップ5に設けられていても、基部側弾性部材7Aの収縮力を自由端側弾性部材7Bの収縮力よりも強くすることができる。また基部側弾性部材7Aと自由端側弾性部材7Bとして同じ素材からなる弾性部材を用いて、同じ伸張倍率で立ち上がりフラップ5に設けることもできる。そのため、簡便に基部側弾性部材7Aを自由端側弾性部材7Bよりも強い収縮力で設けることができる。図面に示した吸収性物品1では、立ち上がりフラップ5に基部側弾性部材7Aが自由端側弾性部材7Bよりも多くの本数設けられており、これにより、基部側弾性部材7Aが自由端側弾性部材7Bよりも強い収縮力で設けられている。 By increasing the number of the base side elastic members 7A provided in the rising flap 5 than the number of the free end side elastic members 7B, the base side elastic members 7A can be provided with a stronger contractile force than the free end side elastic members 7B. . In this case, even if each elastic member is provided on the rising flap 5 with the same contractile force, the contractile force of the base side elastic member 7A can be made stronger than the contractile force of the free end side elastic member 7B. can. Alternatively, the base side elastic member 7A and the free end side elastic member 7B may be provided on the rising flap 5 with the same expansion ratio by using the same elastic member. Therefore, the base side elastic member 7A can be easily provided with a stronger contractile force than the free end side elastic member 7B. In the absorbent article 1 shown in the drawings, the rising flap 5 is provided with more base side elastic members 7A than free end side elastic members 7B. It is provided with a stronger contractile force than 7B.

自由端側弾性部材7Bの収縮力は基部側弾性部材7Aの収縮力の90%以下が好ましく、80%以下がより好ましく、70%以下がさらに好ましい。このように自由端側弾性部材7Bが設けられていれば、立ち上がりフラップ5の自由端5B側が着用者の肌にソフトに当たりやすくなり、吸収性物品1の着用感が向上する。一方、自由端側弾性部材7Bの収縮力は基部側弾性部材7Aの収縮力の25%以上が好ましく、30%以上がより好ましく、35%以上がさらに好ましい。このように自由端側弾性部材7Bが設けられていれば、立ち上がりフラップ5の折り目F1よりも自由端5B側の部分に適度に収縮力が付与され、当該部分が着用者の肌に面状に当たりやすくなる。 The contractile force of the free end side elastic member 7B is preferably 90% or less, more preferably 80% or less, and even more preferably 70% or less of the contractile force of the base side elastic member 7A. If the free end side elastic member 7B is provided in this manner, the free end 5B side of the rising flap 5 is likely to softly contact the wearer's skin, and the wearing feeling of the absorbent article 1 is improved. On the other hand, the contractile force of the free end side elastic member 7B is preferably 25% or more, more preferably 30% or more, and even more preferably 35% or more of the contractile force of the base side elastic member 7A. If the free end side elastic member 7B is provided in this manner, a contractile force is applied to the portion closer to the free end 5B than the folding line F1 of the rising flap 5, and this portion comes into contact with the wearer's skin. easier.

フラップ弾性部材7(基部側弾性部材7Aと自由端側弾性部材7B)が3本以上設けられる場合、隣接するフラップ弾性部材7間の離隔距離は、互いに同じであっても異なっていてもよい。なお、図面に示すように基部側弾性部材7Aが複数本設けられる場合は、基部側弾性部材7Aと自由端側弾性部材7Bの間の離隔距離は、基部側弾性部材7A間の離隔距離よりも長いことが好ましい。このように基部側弾性部材7Aが設けられていれば、複数本設けられた基部側弾性部材7Aが一体的に収縮力を発揮しやすくなり、立ち上がりフラップ5が高く起立しやすくなる。 When three or more flap elastic members 7 (base-side elastic member 7A and free-end-side elastic member 7B) are provided, the separation distances between adjacent flap elastic members 7 may be the same or different. When a plurality of base side elastic members 7A are provided as shown in the drawing, the distance between the base side elastic members 7A and the free end side elastic members 7B is larger than the distance between the base side elastic members 7A. Long is preferred. If the base-side elastic members 7A are provided in this manner, the plurality of base-side elastic members 7A are likely to collectively exhibit contractile force, and the rising flap 5 can be easily raised.

自由端側弾性部材7Bが複数本設けられる場合は、自由端側弾性部材7B間の離隔距離は、基部側弾性部材7Aと自由端側弾性部材7Bの間の離隔距離よりも長くてもよく、短くてもよく、同じでもよい。自由端側弾性部材7B間の離隔距離が、基部側弾性部材7Aと自由端側弾性部材7Bの間の離隔距離よりも短く形成されていれば、複数本設けられた自由端側弾性部材7Bが一体的に収縮力を発揮しやすくなり、立ち上がりフラップ5の自由端5B側の部分が着用者の肌により密接に当たりやすくなる。そのため、横漏れ防止効果を高めることができる。一方、自由端側弾性部材7B間の離隔距離が、基部側弾性部材7Aと自由端側弾性部材7Bの間の離隔距離と同じか、それよりも長く形成されていれば、立ち上がりフラップ5の自由端5B側の部分が着用者の肌によりソフトに当たりやすくなり、着用感に優れるものとなる。 When a plurality of free-end elastic members 7B are provided, the separation distance between the free-end elastic members 7B may be longer than the separation distance between the base-side elastic member 7A and the free-end elastic member 7B. It can be shorter or the same. If the separation distance between the free end side elastic members 7B is formed to be shorter than the separation distance between the base side elastic member 7A and the free end side elastic member 7B, the plurality of free end side elastic members 7B are provided. The contractile force can be exerted integrally, and the portion of the rising flap 5 on the free end 5B side can be brought into closer contact with the wearer's skin. Therefore, the side leakage prevention effect can be enhanced. On the other hand, if the separation distance between the free end side elastic members 7B is equal to or longer than the separation distance between the base side elastic member 7A and the free end side elastic member 7B, the rising flap 5 can be moved freely. The portion on the side of the end 5B comes into contact with the wearer's skin more softly and is excellent in wearing feeling.

立ち上がりフラップ5にはフラップ弾性部材7(基部側弾性部材7Aと自由端側弾性部材7B)が3本以上設けられ、フラップ弾性部材7間の離隔距離は、自由端5B側の方が基部5A側よりも広く形成されていることも好ましい。このようにフラップ弾性部材7が設けられていれば、立ち上がりフラップ5が基部5A側で高く起立しやすくなるとともに、自由端5B側で着用者の肌にソフトに当たりやすくなる。 Three or more flap elastic members 7 (a base side elastic member 7A and a free end side elastic member 7B) are provided on the rising flap 5, and the separation distance between the flap elastic members 7 is greater on the free end 5B side than on the base 5A side. It is also preferable that the width is formed wider than the width. If the flap elastic member 7 is provided in this manner, the rising flap 5 can easily stand up high on the base portion 5A side, and the free end 5B side can softly touch the wearer's skin.

基部側弾性部材7Aは、基部5Aよりも自由端5Bの近くに配されていることが好ましい。すなわち、立ち上がりフラップ5を起立方向に2等分したとき、基部側弾性部材7Aは立ち上がりフラップ5の自由端5B側の1/2の領域に配されていることが好ましい。この場合、フラップ弾性部材7は、立ち上がりフラップ5の基部5A側の1/2の領域には配されず、立ち上がりフラップ5の自由端5B側の1/2の領域に全て配されることとなる。このように基部側弾性部材7Aが配されていれば、立ち上がりフラップ5が基部側弾性部材7Aの収縮力によって高く起立しやすくなる。 The base-side elastic member 7A is preferably arranged closer to the free end 5B than to the base 5A. That is, when the rising flap 5 is divided into two equal parts in the rising direction, the base-side elastic member 7A is preferably arranged in a half area of the rising flap 5 on the free end 5B side. In this case, the flap elastic member 7 is not disposed in the 1/2 region of the rising flap 5 on the base portion 5A side, but is disposed entirely in the 1/2 region of the rising flap 5 on the free end 5B side. . If the base-side elastic member 7A is arranged in this manner, the rising flap 5 can be easily raised by the contractile force of the base-side elastic member 7A.

自由端側弾性部材7Bは折り目F1よりも自由端5Bの近くに配されていることが好ましい。自由端側弾性部材7Bが複数本設けられる場合は、自由端側弾性部材7Bの全部が、折り目F1よりも自由端5Bの近くに配されていることが好ましい。このように自由端側弾性部材7Bが設けられていれば、立ち上がりフラップ5が起立した際、立ち上がりフラップ5の折り目F1よりも自由端5B側の部分が着用者の肌に面状に当たりやすくなる。また、自由端側弾性部材7Bが折り目F1からある程度離れた位置に設けられることにより、立ち上がりフラップ5に折り目F1による折り癖が付与されやすくなる。 The free end side elastic member 7B is preferably arranged closer to the free end 5B than the fold line F1. When a plurality of free end side elastic members 7B are provided, all of the free end side elastic members 7B are preferably arranged closer to the free end 5B than the fold line F1. If the free end side elastic member 7B is provided in this way, when the rising flap 5 is raised, the portion of the rising flap 5 closer to the free end 5B than the fold line F1 is likely to come into contact with the wearer's skin. In addition, since the free-end elastic member 7B is provided at a position distant from the fold line F1 to some extent, the rising flap 5 is easily given a crease due to the fold line F1.

折り目F1は、立ち上がりフラップ5の自由端5B側の1/4の領域に形成されていることが好ましい。このように折り目F1が形成されていれば、立ち上がりフラップ5の折り目F1よりも基部5A側の部分の幅方向xの長さが確保され、立ち上がりフラップ5が高く起立しやすくなる。 The fold line F1 is preferably formed in a quarter area of the rising flap 5 on the free end 5B side. If the fold line F1 is formed in this way, the length in the width direction x of the portion of the rising flap 5 closer to the base portion 5A than the folding line F1 is ensured, and the rising flap 5 becomes high and easy to stand up.

折り目F1は、立ち上がりフラップ5の倒伏状態において、吸収体4と重なる位置に形成されることが好ましい。このように折り目F1が形成されていれば、吸収性物品1を折り目F1で折り畳んだ際に、立ち上がりフラップ5の折り目F1が吸収体4で挟まれて、立ち上がりフラップ5に折り癖が好適に付与されやすくなる。好ましくは、折り目F1は、立ち上がりフラップ5の倒伏状態において、吸収体4の前側端から後側端まで吸収体4の全体を前後方向yに横切るように形成される。すなわち折り目F1は、吸収体4の前側端から後側端まで、吸収体4を前後方向yに連続的に横切るように形成されていることがより好ましい。これにより、立ち上がりフラップ5の前後方向yのより広い範囲にわたって、立ち上がりフラップ5に折り目F1による折り癖が好適に付与されやすくなる。 The fold line F1 is preferably formed at a position overlapping the absorbent body 4 when the rising flap 5 is laid down. If the fold line F1 is formed in this way, when the absorbent article 1 is folded along the fold line F1, the fold line F1 of the rising flap 5 is sandwiched between the absorber 4, and the rising flap 5 is suitably given a crease. easier to be Preferably, the fold line F1 is formed so as to traverse the entire absorbent body 4 in the front-rear direction y from the front end to the rear end of the absorbent body 4 when the rising flap 5 is laid down. That is, it is more preferable that the fold line F1 is formed so as to continuously cross the absorbent body 4 in the front-rear direction y from the front end to the rear end of the absorbent body 4 . As a result, the crease due to the fold line F1 can be preferably imparted to the rising flap 5 over a wider range of the rising flap 5 in the front-rear direction y.

基部側弾性部材7Aと自由端側弾性部材7Bは、立ち上がりフラップ5の倒伏状態において、吸収体4と重なる位置に配されていることが好ましい。より好ましくは、基部側弾性部材7Aと自由端側弾性部材7Bはその全体が吸収体4と重なる位置に配されている。このように基部側弾性部材7Aと自由端側弾性部材7Bが配されていれば、吸収性物品1を折り目F1で折り畳んだ際に、立ち上がりフラップ5に折り目F1による折り癖が好適に付与されやすくなる。吸収体4が複数層から構成される場合は、基部側弾性部材7Aと自由端側弾性部材7Bはその全体が、吸収体4を構成するいずれかの層と重なる位置に配されていればよい。 It is preferable that the base-side elastic member 7A and the free-end-side elastic member 7B are positioned so as to overlap the absorber 4 when the rising flap 5 is laid down. More preferably, the base-side elastic member 7A and the free-end-side elastic member 7B are arranged at positions where the entirety thereof overlaps the absorber 4 . If the base side elastic member 7A and the free end side elastic member 7B are arranged in this way, when the absorbent article 1 is folded along the fold line F1, the rising flap 5 tends to preferably have a crease due to the fold line F1. Become. When the absorber 4 is composed of a plurality of layers, the base side elastic member 7A and the free end side elastic member 7B as a whole need only be arranged at a position overlapping with any of the layers constituting the absorber 4. .

立ち上がりフラップ5は、基部5Aから幅方向xの内方に向かって立ち上がるように形成されていてもよく、基部5Aから幅方向xの外方に向かって立ち上がるように形成されていてもよい。なお、図面に示した吸収性物品1では、立ち上がりフラップ5は前者のように形成されており、このように立ち上がりフラップ5が形成されていれば、立ち上がりフラップ5が起立した際に、立ち上がりフラップ5の自由端5B側の部分が幅方向xの外方に開いて着用者の肌に面状に当たりやすくなり、着用感を向上することができる。 The rising flap 5 may be formed to rise inward in the width direction x from the base portion 5A, or may be formed to rise outward in the width direction x from the base portion 5A. In the absorbent article 1 shown in the drawings, the rising flaps 5 are formed as in the former case. The portion on the side of the free end 5B opens outward in the width direction x, so that it can easily come into contact with the wearer's skin in a planar manner, and the feeling of wearing can be improved.

立ち上がりフラップ5が基部5Aから幅方向xの内方に向かって立ち上がるように形成される場合、立ち上がりフラップ5の前側端部と後側端部はその幅方向xの内面側がトップシート2に接合されることが好ましい。一方、立ち上がりフラップ5が基部5Aから幅方向xの外方に向かって立ち上がるように形成される場合、立ち上がりフラップ5の前側端部と後側端部はその幅方向xの外面側がサイドシート6に接合されることが好ましい。これにより立ち上がりフラップ5は、前側端部と後側端部の間の部分が、基部5Aから幅方向xの内方または外方に好適に立ち上がりやすくなる。 When the rising flap 5 is formed to rise inward in the width direction x from the base portion 5A, the front side end and the rear side end of the rising flap 5 are joined to the top sheet 2 on the inner side in the width direction x. preferably. On the other hand, when the rising flap 5 is formed to rise outward in the width direction x from the base portion 5A, the front side end and the rear side end of the rising flap 5 face the side sheet 6 on the outer surface side in the width direction x. It is preferably joined. As a result, the portion between the front end portion and the rear end portion of the rising flap 5 can be preferably easily raised inward or outward in the width direction x from the base portion 5A.

立ち上がりフラップ5は、倒伏状態で、基部5Aから自由端5Bまでの部分が幅方向xの内方に向かって延びるように、または外方に向かって延びるように形成されていてもよい。立ち上がりフラップ5はまた、倒伏状態で、基部5Aから自由端5Bの間で幅方向xの外方または内方に折り返されて形成されていてもよい。なお、立ち上がりフラップ5は前者の態様で形成されていることが好ましく、これにより立ち上がりフラップ5がより高く起立することができるとともに、吸収性物品1を折り目F1で折り返した際に、立ち上がりフラップ5に折り目F1による折り癖がより強く付与されやすくなる。 The rising flap 5 may be formed so that the portion from the base portion 5A to the free end 5B extends inward in the width direction x or extends outward in the collapsed state. The rising flap 5 may also be folded outwardly or inwardly in the width direction x between the base portion 5A and the free end 5B in the collapsed state. It should be noted that the rising flap 5 is preferably formed in the former manner, so that the rising flap 5 can stand up higher, and when the absorbent article 1 is folded back along the folding line F1, the rising flap 5 can be The fold line F1 tends to impart a stronger crease.

基部側弾性部材7Aと自由端側弾性部材7Bは、接着剤により立ち上がりフラップ5に取り付けられており、基部側弾性部材7Aの接着剤量は、自由端側弾性部材7Bの接着剤量よりも多いことが好ましい。これにより基部側弾性部材7Aがより強固に立ち上がりフラップ5に取り付けられ、基部側弾性部材7Aの収縮力によって、立ち上がりフラップ5の折り目F1よりも基部5A側の部分が好適に起立しやすくなる。一方、立ち上がりフラップ5の折り目F1よりも自由端5B側の部分は、自由端側弾性部材7Bの接着剤量が少ないことにより、柔軟に形成され、着用者の肌への当たりをソフトにすることができる。 The base side elastic member 7A and the free end side elastic member 7B are attached to the rising flap 5 with an adhesive, and the amount of adhesive for the base side elastic member 7A is larger than that for the free end side elastic member 7B. is preferred. As a result, the base-side elastic member 7A is more firmly attached to the rising flap 5, and the contractile force of the base-side elastic member 7A makes it easier for the base-side elastic member 7A of the rising flap 5 to rise from the fold line F1. On the other hand, the portion on the free end 5B side of the folding line F1 of the rising flap 5 is formed flexibly due to the small amount of adhesive of the free end side elastic member 7B, so that it is soft against the wearer's skin. can be done.

基部側弾性部材7Aの接着剤量と自由端側弾性部材7Bの接着剤量は次のようにして求めることができる。立ち上がりフラップ5から基部側弾性部材7Aまたは自由端側弾性部材7Bが設置された部分を弾性部材ごとに切り出し、各切り出し片を溶剤に浸して接着剤を溶かし出し、そこから溶剤を留去した残留物の重さを測ることにより、接着剤量を求めることができる。あるいは、製造時の接着剤使用量から接着剤量を求めることもできる。 The adhesive amount of the base side elastic member 7A and the adhesive amount of the free end side elastic member 7B can be obtained as follows. The portion where the base side elastic member 7A or the free end side elastic member 7B is installed is cut out from the rising flap 5 for each elastic member, each cut piece is immersed in a solvent to dissolve the adhesive, and the solvent is distilled off from there. By weighing the object, the amount of adhesive can be determined. Alternatively, the amount of adhesive can be obtained from the amount of adhesive used during manufacturing.

吸収性物品1は、折り目F1で幅方向xに折り返されているが、幅方向xに折り返された状態からさらに前後方向yに折り返されていてもよい。例えば、吸収性物品1は、幅方向xに3つ折りされた状態から、さらに前後方向yに2つ折り、3つ折りまたは4つ折りされることが好ましい。これにより、折り畳まれた吸収性物品1をコンパクトに形成することができる。 The absorbent article 1 is folded back in the width direction x at the fold line F1, but may be folded back in the front-rear direction y after being folded back in the width direction x. For example, the absorbent article 1 is preferably folded in three in the width direction x and further folded in two, three, or four in the front-rear direction y. Thereby, the folded absorbent article 1 can be formed compactly.

吸収性物品1は例えば、図4に示すように肌面側を内側にして幅方向xに3つ折りされた状態から、さらに、折り返された幅方向xの両側部を内側にして、図5に示すように前後方向yに3つ折りされるようにしてもよい。図5に示した吸収性物品1は、折り目F2で前後方向yに折り返されている。折り目F2は略幅方向xに延びるように形成されていればよく、このとき、折り目F2は幅方向xに対して±10°以内の角度で延在していることが好ましく、±5°以内がより好ましい。このように吸収性物品1が折り畳まれていれば、折り畳まれた吸収性物品1が略矩形状に形成され、吸収性物品1の取り扱い性が向上する。 For example, the absorbent article 1 is folded in three in the width direction x with the skin side facing inward as shown in FIG. It may be folded in three in the front-rear direction y as shown. The absorbent article 1 shown in FIG. 5 is folded back in the front-rear direction y at the fold line F2. The fold line F2 may be formed so as to extend substantially in the width direction x. At this time, the fold line F2 preferably extends at an angle of ±10° or less with respect to the width direction x, and ±5° or less. is more preferred. When the absorbent article 1 is folded in this way, the folded absorbent article 1 is formed in a substantially rectangular shape, and the handleability of the absorbent article 1 is improved.

1:吸収性物品
2:トップシート
3:バックシート
4:吸収体
5:立ち上がりフラップ、5A:基部、5B:自由端
6:サイドシート
7:フラップ弾性部材、7A:基部側弾性部材、7B:自由端側弾性部材
F1,F2: 折り目
1: Absorbent article 2: Top sheet 3: Back sheet 4: Absorbent 5: Standing flap, 5A: Base, 5B: Free end 6: Side sheet 7: Flap elastic member, 7A: Base side elastic member, 7B: Free End side elastic members F1, F2: Folds

Claims (10)

折り畳まれた吸収性物品であって、
前記吸収性物品は、幅方向と前後方向を有し、トップシートとバックシートの間に吸収体が配されて構成され、
前記吸収性物品の肌面側の幅方向の両側には立ち上がりフラップが設けられ、前記立ち上がりフラップは、立ち上がりの起点となる基部と立ち上がった先端となる自由端を有し、
前記吸収性物品は、肌面側を内側にして、前記立ち上がりフラップと重なる位置に形成された折り目で幅方向に折り返されており、
前記立ち上がりフラップには、前記折り目よりも前記基部側に基部側弾性部材が設けられ、前記折り目よりも前記自由端側に自由端側弾性部材が設けられ、前記基部側弾性部材が前記自由端側弾性部材よりも強い収縮力で設けられていることを特徴とする吸収性物品。
A folded absorbent article comprising:
The absorbent article has a width direction and a front-rear direction, and is configured by disposing an absorbent body between a top sheet and a back sheet,
Rising flaps are provided on both sides in the width direction of the skin surface side of the absorbent article, and the rising flaps have a base that is a starting point of the rising and a free end that is a rising tip,
The absorbent article is folded back in the width direction at a crease formed at a position overlapping the rising flap with the skin side facing inward,
The rising flap is provided with a base side elastic member on the base side of the crease, a free end side elastic member is provided on the free end side of the crease, and the base side elastic member is on the free end side. An absorbent article characterized by being provided with a contractile force stronger than that of an elastic member.
前記基部側弾性部材の本数は前記自由端側弾性部材の本数よりも多い請求項1に記載の吸収性物品。 2. The absorbent article according to claim 1, wherein the number of said base side elastic members is greater than the number of said free end side elastic members. 前記基部側弾性部材と前記自由端側弾性部材の間の離隔距離は、前記基部側弾性部材間の離隔距離よりも長い請求項2に記載の吸収性物品。 3. The absorbent article according to claim 2, wherein the distance between said base side elastic member and said free end side elastic member is longer than the distance between said base side elastic members. 前記立ち上がりフラップには、前記基部側弾性部材と前記自由端側弾性部材として弾性部材が3本以上設けられ、
前記立ち上がりフラップに設けられた弾性部材間の離隔距離は、前記自由端側の方が前記基部側よりも広い請求項1~3のいずれか一項に記載の吸収性物品。
The rising flap is provided with three or more elastic members as the base side elastic member and the free end side elastic member,
4. The absorbent article according to any one of claims 1 to 3, wherein the separation distance between the elastic members provided on the rising flaps is wider on the free end side than on the base side.
前記基部側弾性部材は、前記基部よりも前記自由端の近くに配されている請求項1~4のいずれか一項に記載の吸収性物品。 The absorbent article according to any one of claims 1 to 4, wherein the base-side elastic member is arranged closer to the free end than to the base. 前記自由端側弾性部材は、前記折り目よりも前記自由端の近くに配されている請求項1~5のいずれか一項に記載の吸収性物品。 The absorbent article according to any one of claims 1 to 5, wherein the free end side elastic member is arranged closer to the free end than the fold line. 前記立ち上がりフラップは、前記基部から幅方向の内方に向かって立ち上がるように形成されている請求項1~6のいずれか一項に記載の吸収性物品。 The absorbent article according to any one of claims 1 to 6, wherein the rising flaps are formed to rise inward in the width direction from the base. 前記基部側弾性部材と前記自由端側弾性部材は、前記立ち上がりフラップの倒伏状態において、全体が前記吸収体と重なる位置に配されている請求項1~7のいずれか一項に記載の吸収性物品。 The absorbent according to any one of claims 1 to 7, wherein the base side elastic member and the free end side elastic member are arranged in a position where the entirety overlaps with the absorber when the rising flap is laid down. Goods. 前記基部側弾性部材と前記自由端側弾性部材は、接着剤により前記立ち上がりフラップに取り付けられており、
前記基部側弾性部材の接着剤量は、前記自由端側弾性部材の接着剤量よりも多い請求項1~8のいずれか一項に記載の吸収性物品。
The base side elastic member and the free end side elastic member are attached to the rising flap with an adhesive,
The absorbent article according to any one of claims 1 to 8, wherein the adhesive amount of the base side elastic member is larger than the adhesive amount of the free end side elastic member.
前記吸収性物品は、幅方向に折り返された状態からさらに前後方向に折りされている請求項1~9のいずれか一項に記載の吸収性物品。 10. The absorbent article according to any one of claims 1 to 9, wherein the absorbent article is folded in the front-rear direction after being folded in the width direction.
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