JP6452908B1 - Absorbent articles - Google Patents

Absorbent articles Download PDF

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JP6452908B1
JP6452908B1 JP2018534755A JP2018534755A JP6452908B1 JP 6452908 B1 JP6452908 B1 JP 6452908B1 JP 2018534755 A JP2018534755 A JP 2018534755A JP 2018534755 A JP2018534755 A JP 2018534755A JP 6452908 B1 JP6452908 B1 JP 6452908B1
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layer
absorbent
cooling sensation
skin
surface layer
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JPWO2019092810A1 (en
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大和 益井
大和 益井
木村 真由美
真由美 木村
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Kao Corp
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Kao Corp
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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
    • 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
    • A61F13/51Absorbent 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 outer layers
    • A61F13/511Topsheet, i.e. the permeable cover or layer facing the skin
    • 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
    • A61F13/53Absorbent 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 absorbing medium
    • 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
    • A61F13/53Absorbent 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 absorbing medium
    • A61F13/534Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • 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
    • A61F13/53Absorbent 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 absorbing medium
    • A61F13/534Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/535Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes
    • 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
    • A61F13/53Absorbent 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 absorbing medium
    • A61F13/534Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad
    • A61F13/537Absorbent 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 absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer

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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)
  • Absorbent Articles And Supports Therefor (AREA)

Abstract

表面層、裏面層、及び前記表面層と前記裏面層との間に配された吸収層を備え、前記表面層と前記吸収層との間に中間繊維層を備える吸収性物品であって、前記吸収層、前記表面層及び前記中間繊維層はそれぞれ冷感剤を含有しており、前記冷感剤の単位面積当たりの含有量が前記吸収層より前記中間繊維層で多く、かつ、前記表面層より前記中間繊維層で多い、吸収性物品。An absorbent article comprising a surface layer, a back layer, and an absorbent layer disposed between the surface layer and the back layer, and comprising an intermediate fiber layer between the surface layer and the absorbent layer, Each of the absorbent layer, the surface layer, and the intermediate fiber layer contains a cooling agent, and the content of the cooling agent per unit area is larger in the intermediate fiber layer than in the absorption layer, and the surface layer Absorbent articles, more in the intermediate fiber layer.

Description

本発明は、生理用ナプキンや失禁パッド、おむつなどの吸収性物品に関する。   The present invention relates to absorbent articles such as sanitary napkins, incontinence pads, and diapers.

生理用ナプキン等の吸収性物品において、***液が多いときや長時間使用するときなどにムレやべたつきが生じて着用者が不快に感じることがある。これに対し、従来、清涼剤等の冷感剤を吸収性物品に含有させることによって、この不快感を除き着用感の向上をはかろうとする技術が提案されている(例えば特許文献1及び2)。冷感剤は揮発して、着用者の肌の感覚神経細胞のTRPM8やTRPA1などを刺激して受容器のしきい値を変化させることで清涼感が感じられる。
特許文献1記載の吸収性物品は、冷感剤が***によって消耗されるという問題に対応するため、着用者の***部に当接する領域における冷感材料の量を、それ以外の領域よりも多くしている。また、特許文献2及び3記載の吸収性物品は、清涼剤による過度な刺激を着用者に与えるという問題に対応するため、物品の平面方向において、着用者の***部に当接する領域よりも、それ以外の領域における清涼剤の量を多くしている。
In an absorbent article such as a sanitary napkin, the wearer may feel uncomfortable due to stuffiness or stickiness when there is a lot of excreted liquid or when used for a long time. On the other hand, conventionally, a technique has been proposed in which a cooling sensation agent such as a refreshing agent is contained in an absorbent article so as to improve the feeling of wearing by removing this discomfort (for example, Patent Documents 1 and 2). ). The cooling sensation volatilizes and stimulates TRPM8, TRPA1, etc. of the sensory nerve cells of the wearer's skin to change the threshold value of the receptor, thereby providing a refreshing feeling.
Since the absorbent article described in Patent Document 1 addresses the problem that the cooling sensation agent is consumed by excretion, the amount of the cooling sensation material in the region contacting the excretion part of the wearer is larger than that in other regions. doing. Moreover, in order to cope with the problem that the absorbent articles described in Patent Documents 2 and 3 give the wearer excessive stimulation by the refreshing agent, in the plane direction of the article, rather than a region in contact with the excretion part of the wearer, The amount of the cooling agent in other areas is increased.

特開2010−234031号公報JP 2010-234031 A 特開2010−234028号公報JP 2010-234028 A 特開2010−234027号公報JP 2010-234027 A

本発明は、表面層、裏面層、及び前記表面層と前記裏面層との間に配された吸収層を備え、前記表面層と前記吸収層との間に中間繊維層を備える吸収性物品であって、前記吸収層、前記表面層及び前記中間繊維層はそれぞれ冷感剤を含有しており、前記冷感剤の単位面積当たりの含有量が前記吸収層より前記中間繊維層で多く、かつ、前記表面層より前記中間繊維層で多い、吸収性物品を提供する。   The present invention is an absorbent article comprising a surface layer, a back layer, and an absorbent layer disposed between the surface layer and the back layer, and an intermediate fiber layer between the surface layer and the absorbent layer. The absorbent layer, the surface layer and the intermediate fiber layer each contain a cooling sensation agent, and the content of the cooling sensation agent per unit area is greater in the intermediate fiber layer than in the absorption layer, and An absorbent article having more intermediate fiber layers than the surface layer is provided.

本発明の上記及び他の特徴及び利点は、適宜添付の図面を参照して、下記の記載からより明らかになるであろう。   The above and other features and advantages of the present invention will become more apparent from the following description, with reference where appropriate to the accompanying drawings.

本発明における吸収性物品の好ましい一実施形態としての生理用ナプキンを伸長した状態で肌当接面側から模式的に示す一部切欠斜視図である。It is a partially cutaway perspective view schematically showing from the skin contact surface side in a state where a sanitary napkin as a preferred embodiment of the absorbent article in the present invention is extended. 図1に示す生理用ナプキンのII−II線断面を模式的に示す断面図である。It is sectional drawing which shows typically the II-II sectional view of the sanitary napkin shown in FIG. 本実施形態における吸収層を模式的に示す断面図であり、(A)は縦方向の断面図であり、(B)は幅方向の断面図である。It is sectional drawing which shows typically the absorption layer in this embodiment, (A) is sectional drawing of a vertical direction, (B) is sectional drawing of the width direction. 本実施形態における吸収層が高坪量部を有する態様を、裏面層及び粘着部と共に模式的に示す断面図であり、(A)は縦方向の断面図であり、(B)は幅方向の断面図である。It is sectional drawing which shows typically the aspect in which the absorption layer in this embodiment has a high basic weight part with a back surface layer and an adhesion part, (A) is longitudinal cross-sectional view, (B) is a width direction. It is sectional drawing. 吸収層が吸収性シートの積層構造を有する態様を示す図2相当の断面図である。It is sectional drawing equivalent to FIG. 2 which shows the aspect in which an absorption layer has the laminated structure of an absorbent sheet. (A)〜(D)は、中央吸収性シートの折り畳み構造の他の好ましい例を示す断面図である。(A)-(D) are sectional drawings which show the other preferable example of the folding structure of a center absorbent sheet. 本実施形態の生理用ナプキンが連通部を有する態様を模式的に示す図1相当の一部切欠斜視図である。FIG. 2 is a partially cutaway perspective view corresponding to FIG. 1 schematically showing a mode in which the sanitary napkin of the present embodiment has a communicating portion. 図7に示す生理用ナプキンのVIII−VIII線断面を模式的に示す断面図である。It is sectional drawing which shows typically the VIII-VIII sectional view of the sanitary napkin shown in FIG. 図7に示す生理用ナプキンが有する吸収層の平面図である。It is a top view of the absorption layer which the sanitary napkin shown in FIG. 7 has. 吸収層の別の好ましい態様を模式的に示す断面図であり、(A)は表面層側に凸部と凹部空間とを有する態様の断面図であり、(B)は裏面層側に凸部と凹部空間とを有する態様の断面図である。It is sectional drawing which shows another preferable aspect of an absorption layer typically, (A) is sectional drawing of the aspect which has a convex part and recessed part space on the surface layer side, (B) is a convex part on the back layer side It is sectional drawing of the aspect which has a recessed part space.

発明の詳細な説明Detailed Description of the Invention

本発明は、着用者の肌に対する程良い冷感効果を十分に長く効果的に維持することができる吸収性物品に関する。   The present invention relates to an absorbent article that can effectively maintain a moderate cooling effect on the wearer's skin for a sufficiently long time.

冷感剤を配合した吸収性物品において、着用者のいわゆるデリケートエリア(***部)の肌は角層が少ないため冷感による刺激を強く受けやすい。また、該デリケートエリアに対応するナプキンの受液領域では***により冷感が過剰に効きやすくなる。
特許文献1記載の吸収性物品のように、着用者の***部と対向する領域(受液領域)に単に冷感剤の量を増やしては、痛みを伴い不快感を与える場合があり、却って着用感を損ねかねない。一方、特許文献2及び3記載の吸収性物品のように、冷感剤を、着用者の***部と対向する領域(受液領域)の外側に多く配置すると、むれやすい部分における十分な冷感効果を持続することが難しくなる。
In an absorbent article containing a cooling sensation agent, the skin of the so-called delicate area (excretion part) of the wearer is less susceptible to irritation due to cooling sensation because the skin has few stratum corneum. In addition, in the napkin liquid receiving area corresponding to the delicate area, the cooling sensation tends to be excessively effective due to excretion.
Like the absorbent article described in Patent Document 1, simply increasing the amount of the cooling sensate in the region facing the wearer's excretory part (liquid receiving region) may cause pain and discomfort, It may damage the feeling of wearing. On the other hand, as in the absorbent articles described in Patent Documents 2 and 3, when a large amount of cooling sensation agent is disposed outside the region facing the wearer's excretion portion (liquid receiving region), sufficient cooling sensation in the easily peeled portion is achieved. It becomes difficult to maintain the effect.

これに対し、本発明に係る吸収性物品は、着用者の肌に対する程良い冷感効果を十分に長く効果的に維持することができる。   On the other hand, the absorbent article which concerns on this invention can maintain the moderate cooling sensation effect with respect to a wearer's skin effectively long enough.

以下、本発明に係る吸収性物品の好ましい一実施形態としての生理用ナプキン(以下、ナプキンとも言う)10について、図面を参照しながら説明する。
本発明においては、特に断らない限り、人体に接触する側を肌面側ないし肌当接面側あるいは表面側といい、これと反対側を非肌面側ないし非肌当接面側あるいは裏面側という。これらは、人体に接触する面を有さない部材に関しても、吸収性物品の部材構成における相対的な位置関係を示す用語として用いる。また、着用時に人体の前側に位置する方向を前方といい、後側に位置する方向を後方という。吸収性物品の表面又は裏面の法線方向を厚み方向という。
Hereinafter, a sanitary napkin (hereinafter also referred to as a napkin) 10 as a preferred embodiment of an absorbent article according to the present invention will be described with reference to the drawings.
In the present invention, unless otherwise specified, the side in contact with the human body is referred to as the skin surface side or the skin contact surface side or the surface side, and the opposite side is referred to as the non-skin surface side or the non-skin contact surface side or the back surface side. That's it. These are also used as terms indicating a relative positional relationship in the member configuration of the absorbent article even with respect to a member that does not have a surface in contact with the human body. Moreover, the direction located in the front side of a human body at the time of wear is called front, and the direction located in a rear side is called back. The normal direction of the front surface or the back surface of the absorbent article is referred to as the thickness direction.

ナプキン10は、図1及び2に示すように、肌当接面側の表面層1と、非肌当接面側の裏面層2と、表面層1と裏面層2との間に配された液保持性の吸収層3とを有する。更に表面層1と吸収層3との間には、液拡散性を備える中間繊維層4を配する。表面層1は液を吸収層3へと送り込む液透過性を備え、裏面層2は吸収層3にある液に対する防漏性を備える。表面層1及び裏面層2は吸収層3の両面を覆いつつ、吸収層3の外縁外方へと延出する大きさを有する。中間繊維層4は、表面層1から透過される***液を平面方向に広げて、吸収層3の肌面側の吸収面積を広げる作用を有する。
本実施形態においては、表面層1の肌当接面側の両側にサイドシート5が積層されている。サイドシート5と裏面層2とが吸収層3の幅方向外方に延出して、衣類等への固定手段であるウイング部6を形成している。ウイング部6及び裏面層2の非肌当接面側には、ナプキン10を着衣に固定するための粘着部7を有している。このシートの積層構造において、ナプキン10の外周縁は、吸収層3を介在させずに接合された外周シール部9としている。
As shown in FIGS. 1 and 2, the napkin 10 is disposed between the surface layer 1 on the skin contact surface side, the back surface layer 2 on the non-skin contact surface side, and the surface layer 1 and the back surface layer 2. A liquid-retaining absorbent layer 3. Further, an intermediate fiber layer 4 having liquid diffusibility is disposed between the surface layer 1 and the absorption layer 3. The surface layer 1 has a liquid permeability for sending the liquid to the absorption layer 3, and the back surface layer 2 has a leak-proof property for the liquid in the absorption layer 3. The surface layer 1 and the back surface layer 2 have a size that extends outward from the outer edge of the absorbent layer 3 while covering both surfaces of the absorbent layer 3. The intermediate fiber layer 4 has an action of spreading the excretory fluid permeated from the surface layer 1 in the plane direction and widening the absorption area on the skin surface side of the absorption layer 3.
In the present embodiment, the side sheets 5 are laminated on both sides of the surface layer 1 on the skin contact surface side. The side sheet 5 and the back surface layer 2 extend outward in the width direction of the absorbent layer 3 to form a wing portion 6 that is a fixing means to clothing or the like. On the non-skin contact surface side of the wing part 6 and the back surface layer 2, there is an adhesive part 7 for fixing the napkin 10 to clothes. In the laminated structure of the sheets, the outer peripheral edge of the napkin 10 is an outer peripheral seal portion 9 joined without the absorbent layer 3 interposed.

ナプキン10は、他の構成部材を含んでいてもよく、サイドシート5を有さない形態であってもよい。更に表面層1から吸収層3にかけて圧搾した防漏溝、表面層1上の複数のエンボスなどを有していてもよい。また、サイドシート5は、表面層1と接合されながら、表面層1の両側よりも内方側に自由端部を残すようにしてもよく、前記自由端部に弾性部材等を配して防漏カフを構成してもよい。   The napkin 10 may include other constituent members and may have a form without the side sheet 5. Furthermore, it may have a leak-proof groove squeezed from the surface layer 1 to the absorbent layer 3 and a plurality of embosses on the surface layer 1. Further, the side sheet 5 may be bonded to the surface layer 1 while leaving a free end portion on the inner side of both sides of the surface layer 1, and an elastic member or the like is disposed on the free end portion to prevent the side sheet 5. A leak cuff may be configured.

ナプキン10は、平面視において、縦方向(Y方向)と、該縦方向と直交する幅方向(X方向)とを有する、縦長形状である。また表面層1、裏面層2及び吸収層3は、ナプキン10と同様に、縦長形状である。縦方向は、ナプキン10の装着時における、着用者の腹側部、股下部及び背側部を繋ぐ方向に対応する。幅方向は、着用者の股下における左右の足を繋ぐ方向に対応する。本明細書において、縦方向(Y方向)及び幅方向(X方向)は、ナプキン10の平面視における方向を示すと同時に、表面層1、裏面層2及び吸収層3の平面視における方向を示す。   The napkin 10 has a vertically long shape having a longitudinal direction (Y direction) and a width direction (X direction) orthogonal to the longitudinal direction in plan view. Similarly to the napkin 10, the front surface layer 1, the back surface layer 2, and the absorption layer 3 have a vertically long shape. The vertical direction corresponds to a direction connecting the wearer's abdomen, crotch, and back side when the napkin 10 is worn. The width direction corresponds to the direction connecting the left and right feet in the wearer's crotch. In the present specification, the vertical direction (Y direction) and the width direction (X direction) indicate directions in the plan view of the napkin 10 and simultaneously indicate directions in the plan view of the surface layer 1, the back surface layer 2, and the absorption layer 3. .

ナプキン10は、縦方向に関して、着用者の***部と対応する領域を含む中間部Cと、その両端側に位置する、前方部Fと後方部Rとを有する。前方部Fは、着用者の下腹部と対向して配置され、後方部Rは、着用者の臀部側と対向して配置される。
中間部Cには、幅方向中央部分に、前記***部に対向し、***液を直接受け止める受液領域C1がある。受液領域C1がある「幅方向中央部分」とは、図1に示すように、幅方向の中心線Lから左右に広がる所定幅の範囲をいい、吸収層の幅方向両端縁39よりも内側の範囲の部分を言う。具体的は、ナプキン10の幅方向の中心線Lから左右に広がる領域であって、吸収層幅に対して40%以上60%以下の範囲の部分をいう。なお、中間部C,受液領域C1、前方部F及び後方部Rは、ナプキン10における区分を示すと同時に、これに対応する表面層1、裏面層2、吸収層3及び中間繊維層4における区分をも示す。
The napkin 10 has the intermediate part C including the area | region corresponding to a wearer's excretion part, and the front part F and the rear part R which are located in the both ends side regarding the vertical direction. The front part F is arranged facing the lower abdomen of the wearer, and the rear part R is arranged facing the buttocks side of the wearer.
In the middle part C, there is a liquid receiving region C1 that faces the excretion part and directly receives the excretion liquid at the center in the width direction. As shown in FIG. 1, the “widthwise central portion” where the liquid receiving region C1 is located is a range of a predetermined width extending from the centerline L in the widthwise direction to the left and right, and is located inside the widthwise end edges 39 of the absorbent layer. Say the part of the range. Specifically, it is a region extending from the center line L in the width direction of the napkin 10 to the left and right, and refers to a portion in the range of 40% to 60% with respect to the absorption layer width. The intermediate portion C, the liquid receiving region C1, the front portion F, and the rear portion R indicate the division in the napkin 10, and at the same time, in the corresponding surface layer 1, back layer 2, absorbent layer 3, and intermediate fiber layer 4. Also shows the category.

中間部C、前方部F及び後方部Rの区分位置は、使用目的等によって設定される吸収性物品の長さに応じて適宜設定され得る。ショーツの股下部に折り曲げて固定するウイング部を備える場合は、該ウイング部の存在する縦方向に沿った領域が中間部Cとなる。本実施形態のナプキン10は、昼用などとして設定される形状の例を示しており、縦方向の長さを3等分して、前方部F、中間部C及び後方部Rが設定されており、ウイング部を備えない昼用のナプキンの場合には、中間部はこの設定に従う。ナプキン10がどのような形状であっても一般的には、中間部Cは、前方部Fからの一定の距離の位置にある部位として設定され得る。さらに大人用若しくは幼児用のおむつなど、また、尿取りパッドなどについては、縦方向の長さを3等分して、前方部F、中間部C及び後方部Rが設定される。   The division positions of the intermediate part C, the front part F, and the rear part R can be appropriately set according to the length of the absorbent article set according to the purpose of use or the like. When the wing part which bends and fixes to the crotch part of shorts is provided, the area | region along the vertical direction in which this wing part exists becomes the intermediate part C. FIG. The napkin 10 of the present embodiment shows an example of a shape set for daytime, etc., and the front part F, the intermediate part C, and the rear part R are set by dividing the length in the vertical direction into three equal parts. In the case of a daytime napkin without a wing part, the intermediate part follows this setting. In general, the intermediate part C can be set as a part at a certain distance from the front part F regardless of the shape of the napkin 10. Further, for an adult or infant diaper, a urine collection pad, and the like, a front portion F, an intermediate portion C, and a rear portion R are set by dividing the longitudinal length into three equal parts.

ナプキン10は冷感剤を含有する。冷感剤は、着用者の皮膚及び/又は粘膜表面の温度受容器を刺激して、皮膚及び/又は粘膜表面上の温度を変化させることなしに、着用者に冷感、爽快感を感じさせることができる剤である。
以下に、ナプキン10における冷感剤を含有する層及び含有量について説明する。
The napkin 10 contains a cooling agent. The cooling agent stimulates the temperature receptor on the skin and / or mucosal surface of the wearer, and makes the wearer feel cool and refreshed without changing the temperature on the skin and / or mucosal surface. It is an agent that can.
Below, the layer and content which contain the cooling agent in the napkin 10 are demonstrated.

冷感剤は、ナプキン10の表面層1、吸収層3及び中間繊維層4に含有されている。冷感剤の単位面積当たりの含有量(以下、単に「冷感剤量」ともいう。)は、吸収層3より中間繊維層4で多く、かつ、表面層1より中間繊維層4で多い。   The cooling sensation agent is contained in the surface layer 1, the absorption layer 3, and the intermediate fiber layer 4 of the napkin 10. The content per unit area of the cooling sensation agent (hereinafter, also simply referred to as “cooling sensation agent amount”) is greater in the intermediate fiber layer 4 than in the absorbent layer 3 and greater in the intermediate fiber layer 4 than in the surface layer 1.

このようにナプキン10においては、中間繊維層4に優先的に冷感剤を含有させ、表面層1の冷感剤の含有量を抑えている。これによって、肌に近い表面層1から放出される冷感剤量が適量に抑えられ、表面層1に覆われた中間繊維層4及び更に下層の吸収層3からは冷感剤の揮発成分が時間差をもって肌へと放出される。その結果、肌に到達する冷感剤の揮発成分の濃度が高くなり過ぎないようできるとともに、肌への冷感による過剰な刺激を抑制することができる。   Thus, in the napkin 10, the intermediate fiber layer 4 is preferentially made to contain a cooling sensation agent, and the content of the cooling sensation agent in the surface layer 1 is suppressed. Thereby, the amount of the cooling sensation agent released from the surface layer 1 close to the skin is suppressed to an appropriate amount, and the volatile components of the cooling sensation agent are contained from the intermediate fiber layer 4 covered by the surface layer 1 and the lower absorption layer 3. It is released to the skin with a time difference. As a result, the concentration of the volatile component of the cooling sensation agent that reaches the skin can be prevented from becoming too high, and excessive stimulation due to the cooling sensation on the skin can be suppressed.

冷感剤量は、多い順に、中間繊維層4、吸収層3、表面層1であることが好ましい。すなわち、吸収層3よりも中間繊維層4の冷感剤量が多く、表面層1よりも吸収層3の冷感剤量が多くさせることができる。これにより、積層された前記3層のうち、最も肌に近い層には冷感剤を最も少なく含有し、中間繊維層4及び吸収層3に冷感剤を相対的に多く含有させることが好ましい。吸収層3よりも厚み方向で表面層1に近い領域である中間繊維層4における冷感剤の含有量を多くすることによって、適度な冷感効果を素早く感じさせることが可能となる。さらに、このような冷感剤の含有量の配分とすることによって、表面層1から厚み方向に離れた領域、特に吸収層3において、冷感剤の含有量を増やして、程良い冷感効果をより十分に長く効果的に維持することが可能となる。   The amount of the cooling sensation agent is preferably the intermediate fiber layer 4, the absorption layer 3, and the surface layer 1 in descending order. That is, the amount of the cooling sensation agent in the intermediate fiber layer 4 is larger than that in the absorption layer 3, and the amount of the cooling sensation agent in the absorption layer 3 can be made larger than that in the surface layer 1. Thereby, it is preferable that the layer closest to the skin among the three layers laminated contains the least amount of the cooling sensation agent, and the intermediate fiber layer 4 and the absorption layer 3 contain a relatively large amount of the cooling sensation agent. . By increasing the content of the cooling sensation agent in the intermediate fiber layer 4 which is a region closer to the surface layer 1 in the thickness direction than the absorption layer 3, it is possible to quickly feel an appropriate cooling effect. Furthermore, by distributing the content of the cooling sensation agent in this manner, in the region away from the surface layer 1 in the thickness direction, particularly in the absorption layer 3, the content of the cooling sensation agent is increased, and a moderate cooling sensation effect is achieved. Can be effectively maintained for a sufficiently long time.

前述した冷感剤量が、吸収層3より中間繊維層4で多く、かつ、表面層1より中間繊維層4で多い態様として、中間繊維層4における冷感剤の単位面積当たりの含有量(N1)の吸収性層3における単位面積当たりの含有量(N2)に対する質量比(N1/N2)を1.05以上とし、かつ、中間繊維層4における冷感剤の単位面積当たりの含有量(N1)の表面層1における単位面積当たりの含有量(N3)に対する質量比(N1/N3)を1.17以上とすることが好ましい。   As an aspect in which the amount of the cooling sensation agent described above is greater in the intermediate fiber layer 4 than in the absorption layer 3 and greater in the intermediate fiber layer 4 than in the surface layer 1, the content per unit area of the cooling sensation agent in the intermediate fiber layer 4 ( The mass ratio (N1 / N2) to the content per unit area (N2) in the absorbent layer 3 of N1) is 1.05 or more, and the content per unit area of the cooling agent in the intermediate fiber layer 4 ( The mass ratio (N1 / N3) to the content (N3) per unit area in the surface layer 1 of N1) is preferably 1.17 or more.

中間繊維層4における冷感剤の単位面積当たりの含有量(N1)の、吸収層3における冷感剤の単位面積当たりの含有量(N2)に対する質量比(N1/N2)は、適度な冷感効果を素早く付与させる観点から、1.05以上が好ましく、1.10以上がより好ましく、1.20以上が更に好ましい。また、前記質量比(N1/N2)は、適度な冷感効果を付与させる観点から、3.00以下が好ましく、2.50以下がより好ましく、2.30以下が更に好ましい。   The mass ratio (N1 / N2) of the content per unit area (N1) of the cooling sensation agent in the intermediate fiber layer 4 to the content (N2) per unit area of the cooling sensation agent in the absorption layer 3 is moderate cooling. From the viewpoint of quickly imparting a feeling effect, 1.05 or more is preferable, 1.10 or more is more preferable, and 1.20 or more is more preferable. The mass ratio (N1 / N2) is preferably 3.00 or less, more preferably 2.50 or less, and even more preferably 2.30 or less, from the viewpoint of imparting an appropriate cooling effect.

中間繊維層4における冷感剤の単位面積当たりの含有量(N1)の、表面層1における冷感剤の単位面積当たりの含有量(N3)に対する質量比(N1/N3)は、装着初期における程よい冷感効果を与える観点から、1.17以上が好ましく、1.33以上がより好ましく、1.53以上が更に好ましい。また、前記質量比(N1/N3)は、着用者の肌への過剰な冷感による刺激を抑える観点から、20以下が好ましく、10以下がより好ましく、6.67以下が更に好ましい。   The mass ratio (N1 / N3) of the content (N1) per unit area of the cooling sensation agent in the intermediate fiber layer 4 to the content (N3) per unit area of the cooling sensation agent in the surface layer 1 is as follows. From the viewpoint of providing an appropriate cooling effect, 1.17 or more is preferable, 1.33 or more is more preferable, and 1.53 or more is more preferable. The mass ratio (N1 / N3) is preferably 20 or less, more preferably 10 or less, and still more preferably 6.67 or less, from the viewpoint of suppressing irritation caused by excessive cooling to the wearer's skin.

吸収層3における冷感剤の単位面積当たりの含有量(N2)の、表面層1における冷感剤の単位面積当たりの含有量(N3)に対する質量比(N2/N3)は、冷感効果の持続性の観点から、1.11以上が好ましく、1.21以上がより好ましく、1.28以上が更に好ましい。また、前記質量比(N2/N3)は、適度な冷感効果を付与させる観点から、6.67以下が好ましく、4.00以下がより好ましく、2.90以下が更に好ましい。   The mass ratio (N2 / N3) of the content (N2) per unit area of the cooling sensation agent in the absorbent layer 3 to the content (N3) per unit area of the cooling sensation agent in the surface layer 1 is the cooling effect. From the viewpoint of durability, 1.11 or more is preferable, 1.21 or more is more preferable, and 1.28 or more is more preferable. The mass ratio (N2 / N3) is preferably 6.67 or less, more preferably 4.00 or less, and even more preferably 2.90 or less, from the viewpoint of imparting an appropriate cooling effect.

冷感剤は表面層1、吸収層3及び中間繊維層4からなる各層に分配して、上記の濃度差をもって含有されているので、量を増やしても着用者の肌への過剰な刺激を抑えることができる。   The cooling sensation agent is distributed to each layer consisting of the surface layer 1, the absorption layer 3 and the intermediate fiber layer 4, and is contained with the above-mentioned concentration difference. Therefore, even if the amount is increased, excessive irritation to the wearer's skin is caused. Can be suppressed.

表面層1、中間繊維層4、及び吸収層3における冷感剤の単位面積当たりの含有量は、物品のタイプ等にもより一概に決められないが、例えば、冷感剤として乳酸メンチルを含む昼用のナプキンの場合を例にとると以下のとおりである。
表面層1における冷感剤の単位面積当たりの含有量は、装着初期における程よい冷感効果の観点から、0.01g/m以上が好ましく、0.03g/m以上がより好ましく、0.05g/m以上が更に好ましい。また、表面層1における冷感剤の単位面積当たりの含有量は、適度な冷感効果を付与させることの観点から、0.5g/m以下が好ましく、0.4g/m以下がより好ましく、0.3g/m以下が更に好ましい。
吸収層3における冷感剤の単位面積当たりの含有量は、冷感効果の持続性の観点から、0.03g/m以上が好ましく、0.05g/m以上がより好ましく、0.07g/m以上が更に好ましい。また、吸収層3における冷感剤の単位面積当たりの含有量は、適度な冷感効果を付与させる観点から、1.5g/m以下が好ましく、1.3g/m以下がより好ましく、1.1g/m以下が更に好ましい。
中間繊維層4における冷感剤の単位面積当たりの含有量は、適度な冷感効果を素早く感じさせる観点から、0.05g/m以上が好ましく、0.07g/m以上がより好ましく、0.1g/m以上が更に好ましい。また、中間繊維層4における冷感剤の単位面積当たりの含有量は、適度な冷感効果を付与させる観点から、2.0g/m以下が好ましく、1.5g/m以下がより好ましく、1.0g/m以下が更に好ましい。中間繊維層4は、表面層1と吸収層3との中間にあって、中間繊維層4に含有される冷感剤の揮発成分は表面層1を介するため適度に肌面側へ移行しつつ、同時に吸収層3が含む冷感剤の揮発成分を肌面側への過度な移行を抑制するという緩衝作用があるため、量を増やしても程よい冷感効果を長時間使用者へ与えることが可能となる。
Although the content per unit area of the cooling sensation agent in the surface layer 1, the intermediate fiber layer 4, and the absorption layer 3 is not generally determined by the type of the article, for example, it contains menthyl lactate as the cooling sensation agent. Taking the case of a napkin for daytime as an example, it is as follows.
The content per unit area of the cooling agent in the surface layer 1 is preferably 0.01 g / m 2 or more, more preferably 0.03 g / m 2 or more, from the viewpoint of a moderate cooling effect in the initial stage of wearing. More preferably, it is 05 g / m 2 or more. Further, the content per unit area of the cooling agent in the surface layer 1 is preferably 0.5 g / m 2 or less, more preferably 0.4 g / m 2 or less, from the viewpoint of imparting an appropriate cooling effect. Preferably, 0.3 g / m 2 or less is more preferable.
Content per unit area of the cooling agent in the absorption layer 3, from the viewpoint of sustained cooling effect, 0.03 g / m 2 or more preferably, 0.05 g / m 2 or more, more preferably, 0.07 g / M 2 or more is more preferable. The content per unit area of the cooling agent in the absorption layer 3, from the viewpoint of imparting moderate cooling effect, preferably 1.5 g / m 2 or less, more preferably 1.3 g / m 2, 1.1 g / m 2 or less is more preferable.
Content per unit area of the cooling agent in the intermediate fiber layer 4, from the viewpoint of feel quickly moderate cooling effect, 0.05 g / m 2 or more preferably, 0.07 g / m 2 or more, and More preferably, it is 0.1 g / m 2 or more. The content per unit area of the cooling agent in the intermediate fiber layer 4, from the viewpoint of imparting moderate cooling effect, preferably 2.0 g / m 2 or less, more preferably 1.5 g / m 2 or less 1.0 g / m 2 or less is more preferable. The intermediate fiber layer 4 is in the middle between the surface layer 1 and the absorption layer 3, and the volatile component of the cooling sensation agent contained in the intermediate fiber layer 4 is appropriately transferred to the skin surface side through the surface layer 1. At the same time, since it has a buffering action that suppresses excessive migration of the volatile components of the cooling sensation agent contained in the absorption layer 3 to the skin surface side, it is possible to give a moderate cooling sensation effect to the user for a long time even if the amount is increased It becomes.

(単位面積あたりの冷感剤量の測定方法)
吸収性物品の対象部材又は対象部位から冷感剤を溶媒で抽出し、抽出溶液をガスクロマトグラフィ法(GC)で分析することができる。測定は、ガスクロマトグラフに取り付けた水素炎イオン化型検出器(FID)で行い、例えば、Agilent technologies製7890Aにより測定することができる。予め冷感剤の濃度とピーク面積の関係を検量線化しておき、当該検量線を元に定量作業を行う。
冷感剤が乳酸メンチル及び/又はメントールを含む場合を例に説明する。溶媒としてメタノールを使用して対象部材又は対象部位から乳酸メンチル及び/又はメントールを抽出する。メタノールを溶媒として、予め濃度の異なる3〜5段階程度の乳酸メンチル溶液及び/又はメントール溶液を準備し、GCのクロマトグラムからそれぞれの濃度のピーク面積を算出し、標準試料として、n−ペンチルアルコールを用い、標準試料の濃度に対してそのピーク面積をプロットした検量線を作成する。検量線を作成した分析と同じ条件で抽出液の分析を行うことで、得られたピーク面積を検量線にあてはめて乳酸メンチル量及び/又はメントール量を算出する。また、得られた乳酸メンチル量及び/又はメントール量を、予め採取した製品部位の面積で除することにより、単位面積当たりの冷感剤量(冷感剤坪量)を求めることができる。また、得られた乳酸メンチル量及び/又はメントール量を、吸収性物品の縦方向の長さ(mm)で除し、100倍することで、製品長さ100mm当りの冷感剤量を求めることができる。
製品の構成部材又は部位ごとの冷感剤量を知るには、5℃のチャンバー内で製品を分解し、測定する材料部位を取り出すことで分析可能となる。
(Measurement method of cooling agent amount per unit area)
The cooling sensation agent can be extracted with a solvent from the target member or target part of the absorbent article, and the extracted solution can be analyzed by gas chromatography (GC). The measurement can be performed with a flame ionization detector (FID) attached to a gas chromatograph, and can be measured with, for example, 7890A manufactured by Agilent Technologies. The relationship between the concentration of the cooling sensation agent and the peak area is made into a calibration curve in advance, and the quantitative work is performed based on the calibration curve.
The case where the cooling sensation agent includes menthyl lactate and / or menthol will be described as an example. Methanol lactate and / or menthol is extracted from the target member or target site using methanol as a solvent. Prepare methanol and / or menthol solutions of about 3 to 5 stages with different concentrations using methanol as a solvent, calculate the peak area of each concentration from the GC chromatogram, and use n-pentyl alcohol as a standard sample. Is used to create a calibration curve in which the peak area is plotted against the concentration of the standard sample. By analyzing the extract under the same conditions as the analysis for creating the calibration curve, the obtained peak area is applied to the calibration curve to calculate the amount of menthol lactate and / or the amount of menthol. Moreover, the amount of the cooling sensate per unit area (cooling sensation basis weight) can be calculated | required by remove | dividing the amount of lactic acid menthyl and / or menthol obtained by the area of the product part extract | collected previously. Moreover, the amount of the cooling sensitizer per 100 mm product length is calculated | required by remove | dividing the amount of lactic acid menthyl and / or menthol obtained by the length (mm) of the longitudinal direction of an absorbent article, and multiplying by 100 times. Can do.
In order to know the amount of the cooling sensation agent for each component or part of the product, analysis can be performed by decomposing the product in a chamber at 5 ° C. and taking out the material part to be measured.

上記のような冷感剤の含有配分を有するナプキン10において、***があっても、中間繊維層4及び吸収層3に含有される冷感剤の揮発成分が肌へと円滑に移行できることが好ましい。この観点から、表面層1の液拡散性が、中間繊維層4及び吸収層3の液拡散性よりも小さいことが好ましい。これにより、表面層1における***液の平面方向への拡散面積が、中間繊維層4及び吸収層3と比較して相対的に小さくなり、***液による冷感剤の揮発成分の移行を妨げる範囲が小さくなる。そのため、ナプキン10が***液を受けている最中(例えば複数回の***)においても、中間繊維層4及び吸収層3から時間差をもって上がってくる冷感剤の揮発成分が円滑に肌に到達しやすい。その結果、程よい冷感効果をより長く付与することができる。この場合、***液は、表面層1の受液領域C1周辺の範囲において非肌面側へと透過されるようになる。これによって、***液受領時において、対応する着用者のいわゆるデリケートエリア(***部)に対し、冷感による刺激を適度に緩和することができる。また、上記の拡散性の差異によって、表面層1から***液がすみやかに非肌面側の層に透過されるため、濡れによる肌の不快感を回避し、***液が冷感剤の揮発経路を塞がずに適度な冷感が維持され得る。   In the napkin 10 having the distribution of the cooling sensation agent as described above, it is preferable that the volatile components of the cooling sensation agent contained in the intermediate fiber layer 4 and the absorption layer 3 can be smoothly transferred to the skin even if there is excretion. . From this viewpoint, it is preferable that the liquid diffusibility of the surface layer 1 is smaller than the liquid diffusibility of the intermediate fiber layer 4 and the absorption layer 3. Thereby, the diffusion area to the plane direction of the excretion liquid in the surface layer 1 becomes relatively small compared with the intermediate fiber layer 4 and the absorption layer 3, and the range which prevents the transition of the volatile component of the cooling sensation agent by the excretion liquid Becomes smaller. Therefore, even when the napkin 10 is receiving excretion (for example, excretion several times), the volatile components of the cooling sensation that rises with a time difference from the intermediate fiber layer 4 and the absorption layer 3 smoothly reach the skin. Cheap. As a result, a moderate cooling effect can be imparted for a longer time. In this case, the excreted liquid is transmitted to the non-skin surface side in the range around the liquid receiving region C1 of the surface layer 1. Thereby, at the time of excretion liquid reception, irritation | stimulation by a cold feeling can be moderated moderately with respect to what is called a delicate area (excretion part) of a corresponding wearer. In addition, due to the difference in diffusivity, since the excretory fluid is quickly transmitted from the surface layer 1 to the non-skin side layer, skin discomfort due to wetting is avoided, and the excretory fluid is a volatile pathway of the cooling sensate. A moderate cool feeling can be maintained without blocking.

中間繊維層4は、液拡散性を高める観点から、熱可塑性繊維を含む不織布であることが好ましい。これによって、中間繊維層4及び吸収層3の肌側面3Aにおいて冷感剤が非肌面側への滲出が抑制されて、肌に対する冷感効果がより長く維持されやすくなる。   The intermediate fiber layer 4 is preferably a nonwoven fabric containing thermoplastic fibers from the viewpoint of improving liquid diffusibility. As a result, the cooling agent is suppressed from exuding to the non-skin surface side on the skin side surface 3A of the intermediate fiber layer 4 and the absorbent layer 3, and the cooling effect on the skin is easily maintained for a longer time.

前述の液拡散性は、下記の測定方法による液拡散面積によって示される。
動的歩行モデルにナプキンを装着する。動的歩行モデルを歩行速度100歩/分で歩行させながら、粘度8cpsに調整した疑似血液を、流速0.2g/sで3g注入し、3分間歩かせた後、流速0.2g/sで再度3g注入する。2回目の馬血注入完了直後にナプキンを分解し、表面層、中間繊維層、及び吸収層(肌面側)における液拡散面積を測定する。液拡散面積の測定は、コクヨ製OHPフィルム等の透明なフィルムを用いて疑似血液の拡がりを描写し、スキャナー(CANON製 型番CanoScan8800F)にて画像データを作成した後、画像解析ソフト(ネクサス製 nexus New Qube)にて、画素数に応じた面積を算出する。なお、粘度の単位cpsは、1cps=1×10−3Pa・sによって換算される。また、疑似血液は、B型粘度計(東機産業株式会社製 型番TVB−10M、測定条件:ローターNo.19、30rpm、60秒間)を用いて測定した粘度が25℃で8mPa・sになるように脱繊維馬血(株式会社日本バイオテスト研究所製)の血球・血漿比率を調整したものである。
The liquid diffusibility described above is indicated by the liquid diffusion area by the following measurement method.
A napkin is attached to the dynamic walking model. While walking the dynamic walking model at a walking speed of 100 steps / minute, 3 g of simulated blood adjusted to a viscosity of 8 cps was injected at a flow rate of 0.2 g / s, allowed to walk for 3 minutes, and then at a flow rate of 0.2 g / s. Inject 3g again. Immediately after completion of the second equine blood injection, the napkin is decomposed, and the liquid diffusion area in the surface layer, intermediate fiber layer, and absorption layer (skin surface side) is measured. The liquid diffusion area is measured using a transparent film such as an OHP film manufactured by KOKUYO, depicting the spread of pseudo blood, creating image data with a scanner (Model No. CanonScan8800F manufactured by CANON), and then image analysis software (nexus manufactured by Nexus). In (New Qube), an area corresponding to the number of pixels is calculated. The unit of viscosity cps is converted by 1 cps = 1 × 10 −3 Pa · s. The pseudo blood has a viscosity measured at 25 ° C. of 8 mPa · s using a B-type viscometer (model number TVB-10M manufactured by Toki Sangyo Co., Ltd., measurement conditions: rotor No. 19, 30 rpm, 60 seconds). Thus, the blood cell / plasma ratio of defibrinated horse blood (manufactured by Nippon Biotest Laboratories, Inc.) is adjusted.

表面層1の液拡散面積は、中間繊維層4の液拡散面積に対して90%以下が好ましく、80%以下がより好ましい。また、表面層1の液拡散面積は、吸収層3の液拡散面積に対して80%以下が好ましく、70%以下がより好ましい。   The liquid diffusion area of the surface layer 1 is preferably 90% or less and more preferably 80% or less with respect to the liquid diffusion area of the intermediate fiber layer 4. Further, the liquid diffusion area of the surface layer 1 is preferably 80% or less, more preferably 70% or less with respect to the liquid diffusion area of the absorption layer 3.

また、表面層1における平均繊維間距離(D1)は、中間繊維層4における平均繊維間距離(D4)よりも大きい(D1>D4)ことが好ましい。これによって、中間繊維層4に含有される冷感剤の揮発成分が、表面層1による被覆によってある程度抑制されながらも、時間差をもって肌面側に移行しやすくなる。
表面層1における平均繊維間距離(D1)は、中間繊維層4及び吸収層3に含まれる冷感剤の揮発成分を効果的に肌面側へ移行し易くする観点から、中間繊維層4における平均繊維間距離(D4)に対して105%以上が好ましく、115%以上がより好ましく、130%以上が更に好ましい。また、表面層1における平均繊維間距離(D1)は、中間繊維層4及び吸収層3に含まれる冷感剤の揮発成分を適度に肌面側へ移行させる観点から、中間繊維層4における平均繊維間距離(D4)に対して400%以下が好ましく、300%以下がより好ましく、200%以下が更に好ましい。
The average interfiber distance (D1) in the surface layer 1 is preferably larger than the average interfiber distance (D4) in the intermediate fiber layer 4 (D1> D4). Accordingly, the volatile components of the cooling sensation agent contained in the intermediate fiber layer 4 are easily transferred to the skin surface side with a time difference while being suppressed to some extent by the coating with the surface layer 1.
The average interfiber distance (D1) in the surface layer 1 is such that the volatile components of the cooling sensation agent contained in the intermediate fiber layer 4 and the absorbent layer 3 can be effectively transferred to the skin surface side effectively. The average interfiber distance (D4) is preferably 105% or more, more preferably 115% or more, and further preferably 130% or more. The average interfiber distance (D1) in the surface layer 1 is the average in the intermediate fiber layer 4 from the viewpoint of appropriately transferring the volatile components of the cooling sensation agent contained in the intermediate fiber layer 4 and the absorbent layer 3 to the skin surface side. 400% or less is preferable with respect to the interfiber distance (D4), more preferably 300% or less, and even more preferably 200% or less.

(平均繊維間距離の測定方法)
平均繊維間距離は、次のようにして測定対象の不織布の厚みを測定し、下記数式(2)に当てはめて求める。
まず、測定対象の不織布を長手方向50mm×幅方向50mmに切断し、該不織布の切断片を作製する。測定対象の不織布が吸収性物品に組み込まれている場合など、この大きさの切断片を得られない場合には、得られる最大限の大きさに切断して切断片を作製する。
この切断片の厚みを、49Pa加圧で測定する。測定環境は温度20±2℃、相対湿度65±5%、測定機器にはマイクロスコープ(株式会社キーエンス製、VHX−1000)を用いる。まず、前記不織布断面の拡大写真を得る。拡大写真には、既知の寸法のものを同時に写しこむ。前記不織布断面の拡大写真にスケールを合わせ、切断片の厚みを測定する。以上の操作を3回行い、3回の平均値を乾燥状態の不織布の厚み[mm]とする。なお、積層品の場合は、繊維径からその境界を判別し、厚みを算出する。
次いで、測定対象の不織布を構成する繊維の繊維間距離は、以下に示す、Wrotnowskiの仮定に基づく式により求められる。Wrotnowskiの仮定に基づく式は、一般に、不織布を構成する繊維の繊維間距離を求める際に用いられる。Wrotnowskiの仮定に基づく式によれば、繊維間距離A(μm)は、不織布の厚みh(mm)、坪量e(g/m)、不織布を構成する繊維の繊維径d(μm)、繊維密度ρ(g/cm)によって、以下の数式(2)で求められる。なお、凹凸を有する場合には、代表値として凸部の不織布厚みh(mm)を用いて算出する。
繊維径d(μm)は、走査型電子顕微鏡(セイコーインスツルメンツ株式会社製DSC6200)を用いて、カットした繊維の繊維断面を10本測定し、その平均値を繊維径とする。
繊維密度ρ(g/cm)は、密度勾配管を使用して、JIS L1015化学繊維ステープル試験方法に記載の密度勾配管法の測定方法に準じて測定する。
坪量e(g/m)は、測定対象の不織布を所定(0.12m×0.06mなど)の大きさにカットし、質量測定後に、「質量÷所定の大きさから求められる面積=坪量(g/m)」の式で算出して坪量を求める。
(Measurement method of average interfiber distance)
The average inter-fiber distance is obtained by measuring the thickness of the nonwoven fabric to be measured as follows and applying it to the following formula (2).
First, the nonwoven fabric to be measured is cut into a longitudinal direction of 50 mm and a width direction of 50 mm to produce a cut piece of the nonwoven fabric. When a cut piece of this size cannot be obtained, for example, when the nonwoven fabric to be measured is incorporated in the absorbent article, the cut piece is cut to the maximum size that can be obtained.
The thickness of this cut piece is measured with a pressure of 49 Pa. The measurement environment is a temperature of 20 ± 2 ° C., the relative humidity is 65 ± 5%, and the measurement instrument is a microscope (manufactured by Keyence Corporation, VHX-1000). First, an enlarged photograph of the nonwoven fabric cross section is obtained. In the magnified picture, a photograph of a known size is taken at the same time. The scale is matched with the enlarged photograph of the cross section of the nonwoven fabric, and the thickness of the cut piece is measured. The above operation is performed three times, and the average value of the three times is defined as the thickness [mm] of the dried nonwoven fabric. In the case of a laminated product, the boundary is determined from the fiber diameter, and the thickness is calculated.
Next, the inter-fiber distance of the fibers constituting the nonwoven fabric to be measured is determined by the following formula based on Wrotnowski's assumption. An expression based on the assumption of Wrotnowski is generally used when determining the inter-fiber distance of the fibers constituting the nonwoven fabric. According to a formula based on the assumption of Wrotnowski, the interfiber distance A (μm) is the thickness h (mm) of the nonwoven fabric, the basis weight e (g / m 2 ), the fiber diameter d (μm) of the fibers constituting the nonwoven fabric, It is calculated | required by the following Numerical formula (2) by fiber density (rho) (g / cm < 3 >). In addition, when it has an unevenness | corrugation, it calculates using the nonwoven fabric thickness h (mm) of a convex part as a representative value.
The fiber diameter d (μm) is measured using a scanning electron microscope (DSC6200, manufactured by Seiko Instruments Inc.), 10 fiber cross-sections, and the average value is defined as the fiber diameter.
The fiber density ρ (g / cm 3 ) is measured according to the measuring method of the density gradient tube method described in JIS L1015 chemical fiber staple test method using a density gradient tube.
The basis weight e (g / m 2 ) is obtained by cutting the nonwoven fabric to be measured into a predetermined size (0.12 m × 0.06 m or the like), and after mass measurement, “mass ÷ area determined from the predetermined size = The basis weight is calculated by the formula of “basis weight (g / m 2 )”.

Figure 0006452908
Figure 0006452908

吸収層3においては、冷感剤の単位面積当たりの含有量は、吸収層3の非肌側面3Bよりも肌側面3Aで多くされていることが好ましい(図3(A)及び(B)参照)。これにより、吸収層3にある冷感剤が揮発して着用者への肌に到達しやすくなり、着用者は着用時に冷感を素早く感じ、冷感の感じ方に即効性を付与することができる。   In the absorption layer 3, the content per unit area of the cooling sensation agent is preferably increased on the skin side surface 3A than on the non-skin side surface 3B of the absorption layer 3 (see FIGS. 3A and 3B). ). Thereby, the cooling sensation agent in the absorption layer 3 volatilizes and it is easy to reach the skin to the wearer, and the wearer can quickly feel a cool feeling when wearing, and can give immediate effect to how to feel the cool feeling. it can.

吸収層3における肌側面3Aは、吸収層3の構造に応じて下記(1)〜(3)の定義によって区分される部分である。
(1)吸収層3が複数枚の吸収性シートの積層体である場合、最も肌側に位置する吸収性シートの部分を肌側面とする。
(2)吸収層3が、パルプ等の液吸収材料を積繊した吸収性コアをコアラップシートで覆ったものである場合、最も肌側に位置するコアラップシートの部分を肌側面とする。
(3)吸収層3が前記吸収性コアを剥き出しにしたものである場合、該吸収性コアの最も肌側の表層部分から厚み1mmまでの部分を肌側面とする。
この定義に基づき、「肌側面」における冷感剤の単位面積当たりの含有量(冷感剤量)とは、次の部位における含有量である。すなわち、前記(1)の場合、最も肌側に位置する吸収性シートに含まれる冷感剤量である。前記(2)の場合、最も肌側に位置するコアラップシートに含まれる冷感剤量である。(3)の場合、最も肌側の表層部分から厚み1mmまでの部分に含まれる冷感剤量である。
The skin side surface 3 </ b> A in the absorbent layer 3 is a portion that is classified according to the following definitions (1) to (3) according to the structure of the absorbent layer 3.
(1) When the absorption layer 3 is a laminated body of a plurality of absorbent sheets, the part of the absorbent sheet that is positioned closest to the skin is defined as the skin side surface.
(2) When the absorbent layer 3 is obtained by covering an absorbent core with a liquid absorbent material such as pulp covered with a core wrap sheet, the portion of the core wrap sheet positioned closest to the skin is defined as the skin side surface.
(3) When the absorbent layer 3 is the bare absorbent core, the portion of the absorbent core from the most skin-side surface layer portion to a thickness of 1 mm is defined as the skin side surface.
Based on this definition, the content per unit area (cooling sensation amount) of the cooling sensation agent in the “skin side surface” is the content at the following site. That is, in the case of (1), it is the amount of cooling sensation agent contained in the absorbent sheet located closest to the skin. In the case of (2), it is the amount of the cooling sensation agent contained in the core wrap sheet located closest to the skin. In the case of (3), it is the amount of the cooling sensation agent contained in the portion from the surface layer portion closest to the skin to the thickness of 1 mm.

また、吸収層3における非肌側面3Bは、吸収層の構造に応じて下記(1)〜(3)の定義によって区分される部分である。
(1)吸収層3が複数枚の吸収性シートの積層体である場合、最も非肌側に位置する吸収性シートの部分を非肌側面とする。
(2)吸収層3が、パルプ等の液吸収材料を積繊した吸収性コアをコアラップシートで覆ったものである場合、最も非肌側に位置するコアラップシートの部分を非肌側面とする。
(3)吸収層3が前記吸収性コアを剥き出しにしたものである場合、該吸収性コアの最も非肌側の表層部分から厚み1mmまでの部分を非肌側面とする。
この定義に基づき、「非肌側面」における冷感剤の単位面積当たりの含有量(冷感剤量)とは、次の部位における含有量である。すなわち、前記(1)の場合、最も非肌側に位置する吸収性シートに含まれる冷感剤量である。前記(2)の場合、最も非肌側に位置するコアラップシートに含まれる冷感剤量である。(3)の場合、最も非肌側の表層部分から厚み1mmまでの部分に含まれる冷感剤量である。
Moreover, the non-skin side surface 3B in the absorption layer 3 is a part classified by the definition of following (1)-(3) according to the structure of an absorption layer.
(1) When the absorption layer 3 is a laminated body of a plurality of absorbent sheets, the part of the absorbent sheet that is positioned closest to the non-skin side is defined as the non-skin side surface.
(2) When the absorbent layer 3 is obtained by covering an absorbent core with a liquid absorbent material such as pulp covered with a core wrap sheet, the portion of the core wrap sheet positioned on the most non-skin side is defined as a non-skin side surface. To do.
(3) When the absorbent layer 3 is the bare absorbent core, the portion from the most non-skin-side surface layer portion to a thickness of 1 mm is defined as the non-skin side surface.
Based on this definition, the content per unit area (cooling sensation amount) of the cooling sensation agent in the “non-skin side surface” is the content at the following site. That is, in the case of the above (1), it is the amount of cooling sensation agent contained in the absorbent sheet located on the most non-skin side. In the case of (2), it is the amount of the cooling sensation agent contained in the core wrap sheet located on the most non-skin side. In the case of (3), it is the amount of the cooling sensation agent contained in the portion from the surface layer portion on the most non-skin side to the thickness of 1 mm.

前述した表面層1、中間繊維層4、及び吸収層3における冷感剤の単位面積当たりの含有量の配分、吸収層3の肌側面3Aと非肌側面3Bとの間の冷感剤の単位面積当たりの含有量の配分は、種々の方法により形成することができる。
例えば、1)所定量の冷感剤を含有させた表面層1、中間繊維層4、及び吸収層3を用いてナプキン10を製造する方法や、ナプキン10を製造する工程で散布機等を用いて冷感剤を各部材に塗布する方法等の、予め各部材に冷感剤含有量を設計して設ける方法;2)吸収層3の肌面側3Aのみに冷感剤を配合させた後に所定の温度環境にて所定時間静置する等した後に中間繊維層4及び表面層1を配置して、それらの層に冷感剤を移行させる方法;3)吸収層3のみに冷感剤を塗布した後に、吸収層3よりも冷感剤の吸着性及び保持性の高い中間繊維層4を用いて中間繊維層4に冷感剤を保持させることで所定の含有量配分を形成させる方法等が挙げられる。
Distribution of content per unit area of cooling sensation agent in surface layer 1, intermediate fiber layer 4 and absorption layer 3 described above, unit of cooling sensation agent between skin side surface 3A and non-skin side surface 3B of absorption layer 3 The distribution of the content per area can be formed by various methods.
For example, 1) A method of manufacturing the napkin 10 using the surface layer 1, the intermediate fiber layer 4, and the absorbent layer 3 containing a predetermined amount of cooling sensation agent, or using a spreader or the like in the process of manufacturing the napkin 10 A method in which the cooling sensation agent content is previously designed and provided in each member, such as a method of applying a cooling sensation agent to each member; 2) after the cooling sensation agent is blended only in the skin surface side 3A of the absorbent layer 3 A method in which the intermediate fiber layer 4 and the surface layer 1 are disposed after being left standing for a predetermined time in a predetermined temperature environment, and the cooling sensation agent is transferred to these layers; After coating, a method of forming a predetermined content distribution by holding the cooling sensation in the intermediate fiber layer 4 using the intermediate fiber layer 4 having higher adsorption and retention of the cooling sensation than the absorbent layer 3 Is mentioned.

例えば、上述の2)では、以下のメカニズムによって本発明の冷感剤分布が実現されると推察される。冷感剤を吸収層3の肌側面3Aのみに塗工したのちの静置工程によって吸収層3内の冷感剤の移動が平衡状態となる。なお、静置工程では、冷感剤が外部へ揮散し難いように、気密性の高い状態(例えば、吸収層3の全面を気密性容器で覆う等)にしておく。吸収層3の肌側面3Aと非肌側面3Bでは冷感剤の濃度勾配は生じるが、元々吸収層3の肌側面3Aのみに冷感剤を配合したため、及び、両面3A,3Bは同じ環境に置かれるために、極端に一方の面側に移動することが抑制されるものと推察される。そして、冷感剤の平衡状態となった吸収層を、他の部材と組み合わせて吸収性物品を製造することで、吸収層3と接する各部材へ、適量の冷感剤が移行していく。
これに対して、表面層1側の部材に多くの冷感剤を配して、表面層1に過剰の冷感剤が移動し易い製法や構造では、表面層1に冷感剤が多く存在し易くなる。例えば、後述する比較製造例のように中間繊維層4に冷感剤を配する方法や、冷感剤塗工直後の吸収層3に中間繊維層4を配すると、冷感剤は中間繊維層4及びこれと隣接する表面層1へ移動が生じ易く、表面層1から揮散する冷感剤を補充するように中間繊維層4から表面層1へと冷感剤が一気に移動し、表面層1の冷感剤量は中間繊維層4と同等以上になると考えられる。
しかし、上述した2)の方法によれば、中間繊維層4等の部材を配する前では、冷感剤が吸収層3全体に行きわたっているので、中間繊維層4に過剰の冷感剤が一気に移行することが抑制され、かつ、中間繊維層4への移行によって冷感剤濃度が低くなる吸収層3の肌側面3Aへと冷感剤が緩やかに供給され易い。そして、吸収層3の肌側面3A上には中間繊維層4と表面層1が存在するため、中間繊維層4が冷感剤を一時的に保持しつつ、一部の冷感剤が表面層1へと供給されるようになる。そして、表面層1から冷感剤が揮散すると、中間繊維層4から冷感剤が補充される。このために、中間繊維層4の冷感剤量が表面層1及び吸収層3よりも多くなると考えられる。
For example, in the above 2), it is assumed that the cooling agent distribution of the present invention is realized by the following mechanism. The movement of the cooling sensation agent in the absorption layer 3 is brought into an equilibrium state by the standing step after the cooling sensation agent is applied only to the skin side surface 3A of the absorption layer 3. In the standing step, the air-tightness is kept high (for example, the entire surface of the absorption layer 3 is covered with an airtight container) so that the cooling sensation agent is not easily volatilized to the outside. Although the concentration gradient of the cooling sensation occurs on the skin side surface 3A and the non-skin side surface 3B of the absorption layer 3, the cooling sensation agent is originally blended only in the skin side surface 3A of the absorption layer 3, and both surfaces 3A and 3B are in the same environment. Therefore, it is assumed that the movement to one side is extremely suppressed. Then, the absorbent layer in the equilibrium state of the cooling sensation agent is combined with other members to produce an absorbent article, whereby an appropriate amount of cooling sensation agent is transferred to each member in contact with the absorption layer 3.
On the other hand, in the manufacturing method and structure in which a large amount of cooling sensation agent is arranged on the member on the surface layer 1 side and excess cooling sensation agent easily moves to the surface layer 1, the surface layer 1 has a lot of cooling sensation agent. It becomes easy to do. For example, when a cooling sensation agent is disposed on the intermediate fiber layer 4 as in the comparative production example described later, or when the intermediate fiber layer 4 is disposed on the absorbent layer 3 immediately after the cooling sensation agent coating, the cooling sensation agent becomes the intermediate fiber layer. 4 and the surface layer 1 adjacent thereto easily move, and the cooling agent moves from the intermediate fiber layer 4 to the surface layer 1 at a stroke so as to replenish the cooling agent volatilized from the surface layer 1. The amount of the cooling sensation agent is considered to be equal to or greater than that of the intermediate fiber layer 4.
However, according to the method 2) described above, since the cooling sensation agent has spread throughout the absorbent layer 3 before the members such as the intermediate fiber layer 4 are arranged, the excess cooling sensation agent is present in the intermediate fiber layer 4. Is suppressed, and the cooling sensation agent is easily supplied to the skin side surface 3A of the absorbent layer 3 where the concentration of the cooling sensation agent is lowered by the transition to the intermediate fiber layer 4. Since the intermediate fiber layer 4 and the surface layer 1 exist on the skin side surface 3A of the absorbent layer 3, the intermediate fiber layer 4 temporarily holds the cooling sensation agent, and some of the cooling sensation agent is the surface layer. 1 will be supplied. Then, when the cooling sensation agent evaporates from the surface layer 1, the cooling sensation agent is replenished from the intermediate fiber layer 4. For this reason, it is considered that the amount of the cooling sensation agent in the intermediate fiber layer 4 is larger than that of the surface layer 1 and the absorption layer 3.

また、上述した3)では、例えば、中間繊維層4として表面層1よりも坪量が高いシートや厚みが大きいシートを使用することが実施形態として挙げられる。また、親水性の低い冷感剤(例えば、メントールや乳酸メンチル等)を使用する場合には、中間繊維層4の親水性を表面層1よりも低くすることも一例として挙げられる。
そして、上述した2)及び3)を組合せることが、本発明の効果を奏する上でより効果的と考えられる。
In 3) described above, for example, the intermediate fiber layer 4 may be a sheet having a basis weight higher than that of the surface layer 1 or a sheet having a larger thickness. In addition, when using a cooling agent having low hydrophilicity (for example, menthol, menthyl lactate, etc.), the hydrophilicity of the intermediate fiber layer 4 may be lower than that of the surface layer 1 as an example.
And combining 2) and 3) described above is considered more effective in achieving the effects of the present invention.

上記配分は、上述のとおり、例えば、冷感剤溶液の塗布部の配置位置を好適に設定することによって形成することもできる。冷感剤溶液とは、冷感剤と溶媒とを混合した塗布液のことであり、ナプキン10に含有させる際に用いられる液である。冷感剤溶液の塗布部は、製造工程において最初に含有させられる部位である。前記溶媒としては、通常用いられる種々のものを採用できる。例えば、ジプロピレングリコールなどが挙げられる。   As described above, the distribution can be formed, for example, by suitably setting the arrangement position of the application part of the cooling sensitizer solution. The cooling sensation agent solution is a coating solution in which a cooling sensation agent and a solvent are mixed, and is a liquid used when the napkin 10 is contained. The application part of the cooling sensitizer solution is a part that is first contained in the production process. As the solvent, various commonly used solvents can be adopted. For example, dipropylene glycol etc. are mentioned.

吸収層3は、図4(A)及び(B)に示すように、ナプキン10の中間部Cに、吸収層坪量が周囲よりも高い高坪量部33を備えることが好ましい。特に、高坪量部33は、中間部Cの中でも、幅方向中央部分の受液領域C1に配されることが好ましく、受液領域C1を含む所定範囲に配されることがより好ましい。高坪量部33は、吸収層3の態様に応じて種々の方法によって形成することができる。例えば、吸収層3がパルプ等の液吸収材料を積繊した吸収性コアを有するものである場合、液吸収材料の積繊量を周囲よりも増量することによって、高坪量部33を形成できる。また、後述する吸収性シートの積層体である場合は、吸収性シートの枚数を周囲よりも増やすことによって、高坪量部33を形成できる。   As shown in FIGS. 4A and 4B, the absorbent layer 3 preferably includes a high basis weight portion 33 having a higher absorbent layer basis weight than the surroundings in the intermediate portion C of the napkin 10. In particular, the high basis weight portion 33 is preferably arranged in the liquid receiving region C1 at the center portion in the width direction in the intermediate portion C, and more preferably arranged in a predetermined range including the liquid receiving region C1. The high basis weight portion 33 can be formed by various methods depending on the mode of the absorbent layer 3. For example, when the absorbent layer 3 has an absorbent core in which a liquid absorbent material such as pulp is piled, the high basis weight portion 33 can be formed by increasing the pile amount of the liquid absorbent material from the surroundings. . Moreover, when it is a laminated body of the absorbent sheet mentioned later, the high basic weight part 33 can be formed by increasing the number of sheets of an absorbent sheet rather than the circumference | surroundings.

高坪量部33は、吸収層3の他の部分よりも嵩高くなり、相対的に冷感剤を保持しやすい。これにより、時間経過による冷感剤のナプキン10の非肌面側への移行を抑制することができ、着用者の肌への冷感剤揮発成分の移行量を確保することができる。また、嵩高な高坪量部は、冷感剤の揮発成分の過剰な拡散を相対的に抑えることができる。これにより、着用者のいわゆるデリケートエリア(***部)に対応する中間部Cにおいて、過度な冷感による刺激を抑え、程よい冷感効果を長く付与することができる。   The high basis weight portion 33 is bulkier than other portions of the absorbent layer 3 and is relatively easy to hold the cooling sensation agent. Thereby, the transfer to the non-skin surface side of the napkin 10 of the cooling sensation agent by time passage can be suppressed, and the transfer amount of the cooling agent volatile component to the wearer's skin can be ensured. Further, the bulky high basis weight part can relatively suppress excessive diffusion of the volatile components of the cooling sensation agent. Thereby, in the intermediate part C corresponding to what is called a delicate area (excretion part) of a wearer, the irritation | stimulation by an excessive cooling feeling can be suppressed and the moderate cooling feeling effect can be provided long.

裏面層2の非肌側面の、吸収層3の高坪量部33と平面視重なる部分に、衣類固定用の粘着部7が配置されていることが好ましい(図4(A)及び(B)参照)。高坪量部33においては、高坪量部33の非肌面側への冷感剤の移行が少なく、高坪量部33に含有される冷感剤が裏面層2から滲み出しにくい。裏面層2の非肌面側の、高坪量部33と平面視重なる部分に粘着部7を配することにより、冷感剤による粘着部7の固着力の低下を抑制することができる。図4(A)及び(B)においては、粘着部7は、幅方向に延出する帯状にされ、縦方向に複数間欠的に配される態様を示している。この態様においては、帯状にされた粘着部7のいつくかが、高坪量部33と平面視重なる部分に配されている。粘着部7の配置は、この態様に限定されるものではなく、高坪量部33と重なる部分に配置される限り、どのようなパターンであってもよい。例えば、粘着部7が高坪量部33と重なる部分を含んで所定範囲に配されていてもよく、裏面層2の非肌側面の全面に配されていてもよい。また、粘着部7は、裏面層2の非肌側面に対し、複数に分割して間欠的に配されてもよく、連続的に一面に配されていてもよい。   It is preferable that an adhesive portion 7 for fixing clothes is disposed on a portion of the non-skin side surface of the back layer 2 that overlaps the high basis weight portion 33 of the absorbent layer 3 in plan view (FIGS. 4A and 4B). reference). In the high basis weight portion 33, there is little migration of the cooling sensation agent to the non-skin surface side of the high basis weight portion 33, and the cooling sensation agent contained in the high basis weight portion 33 is difficult to ooze out from the back surface layer 2. By disposing the adhesive portion 7 on the non-skin surface side of the back layer 2 and overlapping the high basis weight portion 33 in plan view, it is possible to suppress a decrease in the adhesive strength of the adhesive portion 7 due to the cooling sensate. 4 (A) and 4 (B), the adhesive portion 7 is in the form of a belt extending in the width direction, and a mode in which a plurality of the adhesive portions 7 are intermittently arranged in the vertical direction is shown. In this embodiment, some of the strip-shaped adhesive portions 7 are arranged in a portion overlapping the high basis weight portion 33 in plan view. The arrangement of the adhesive portion 7 is not limited to this aspect, and any pattern may be used as long as the adhesive portion 7 is arranged in a portion overlapping the high basis weight portion 33. For example, the adhesive portion 7 may be disposed in a predetermined range including a portion overlapping the high basis weight portion 33, or may be disposed on the entire non-skin side surface of the back surface layer 2. Moreover, the adhesion part 7 may be divided | segmented into multiple and intermittently distribute | arranged with respect to the non-skin side surface of the back surface layer 2, and may be distribute | arranged continuously on one surface.

吸収層3は、吸収性シートの積層構造を有することが好ましい。これによって、吸収層3内部で、冷感剤の厚み方向への移行量を好適に制御しやすくなる。すなわち、冷感剤が層間の界面を介した厚み方向よりも同一層内の平面方向に移行しやすく、層間における冷感剤の滲出量を適度に抑制できる。これにより、吸収層3の非肌側面での冷感剤量が過剰になることを防ぎ、できるだけ吸収層3の肌側面に近い位置に冷感剤を保持され得る。また、吸収層3における層間に冷感剤の揮発成分を一時貯留して、程よい冷感効果をより長い時間、肌に付与することができる。
また、前述の高坪量部33が、その前後(吸収層3の縦方向において高坪量部33よりも前方及び後方に位置する、高坪量部33以外の吸収層3部分)と比較して、吸収性シートの積層数を多くされていることが好ましい。これにより、前述した冷感剤の揮発成分の一時貯留がより生じやすく、着用者のいわゆるデリケートエリア(***部)に対する刺激を抑えた程良い冷感をより長く付与することができる。
The absorbent layer 3 preferably has a laminated structure of absorbent sheets. Thereby, it becomes easy to suitably control the amount of transition of the cooling sensation agent in the thickness direction inside the absorption layer 3. That is, the cooling sensation agent is more likely to move in the plane direction in the same layer than the thickness direction via the interface between layers, and the amount of cooling sensation agent exudation between layers can be moderately suppressed. Thereby, it can prevent that the amount of the cooling sensation agent in the non-skin side of the absorption layer 3 becomes excess, and a cooling sensation agent can be hold | maintained in the position as close to the skin side of the absorption layer 3 as possible. Moreover, the volatile component of a cooling sensation agent can be temporarily stored between the layers in the absorption layer 3, and a moderate cooling sensation effect can be provided to skin for a longer time.
Moreover, the above-mentioned high basic weight part 33 is compared with the back and front (absorbing layer 3 part other than the high basic weight part 33 located in the front and back rather than the high basic weight part 33 in the vertical direction of the absorption layer 3). Therefore, it is preferable that the number of laminated absorbent sheets is increased. Thereby, the temporary storage of the volatile component of the cooling sensation agent mentioned above is more likely to occur, and it is possible to impart a longer feeling of cooling that suppresses irritation to the so-called delicate area (excretion part) of the wearer.

吸収性シートは、親水性繊維からなる2つのシート状の繊維層間に高吸水性ポリマー材を挟持して固定した厚みの薄いシート体である。吸収性シートの形成にあたっては、高吸水性ポリマーが湿潤によって発現する粘着力や別に添加した接着剤や接着性繊維等のバインダーを利用して一体化することができる。作製は通常用いられる種々の方法によって行うことができ、湿式、乾式いずれの方式によってもよい。吸収性シートは厚みを3.0mm以下に抑えながら、高吸水性ポリマー材をシートの平面方向に分散配置させているためゲルブロッキングを起こし難く、高い吸収力を有する。例えば、特開平8−246395号公報の段落[0019]〜[0131]に記載のものなどが挙げられる。   The absorbent sheet is a thin sheet body in which a superabsorbent polymer material is sandwiched and fixed between two sheet-like fiber layers made of hydrophilic fibers. In the formation of the absorbent sheet, the superabsorbent polymer can be integrated using an adhesive force developed by wetting or a binder such as an adhesive or an adhesive fiber added separately. Manufacture can be performed by various commonly used methods, and may be either wet or dry. The absorbent sheet suppresses the thickness to 3.0 mm or less, and the highly water-absorbing polymer material is dispersed and arranged in the plane direction of the sheet. Examples thereof include those described in paragraphs [0019] to [0131] of JP-A-8-246395.

吸収層3が吸収性シートの積層構造を有する場合、図5に示すような積層構造を有することが好ましい。
図5に示す吸収層3は、本体吸収性シート31と中央吸収性シート32とを折り畳んでなる積層構造を有する。
本体吸収性シート31は、裏面層2側で幅方向の両端部を重ね合わせて三つ折りされた、折り畳み構造を有する。本体吸収性シート31は、中間部Cから前方部F及び後方部Rに及ぶ長さを有し、吸収層3の外形形状をなしている。
中央吸収性シート32は、表面層2側で幅方向の両端部を重ね合わせて三つ折りされた、折り畳み構造を有する。中央吸収性シート32は、折り畳まれた状態において、折り畳まれた本体吸収性シート31よりも幅狭であり、本体吸収性シート31よりも縦方向の長さが短く、中間部Cの幅方向中央に配されている。中央吸収性シート32は、本体吸収性シート31の折り畳み構造の内部に収められている。
When the absorbent layer 3 has a laminated structure of absorbent sheets, it is preferable to have a laminated structure as shown in FIG.
The absorbent layer 3 shown in FIG. 5 has a laminated structure in which a main body absorbent sheet 31 and a central absorbent sheet 32 are folded.
The main body absorbent sheet 31 has a folded structure that is folded in three on the back layer 2 side by overlapping both end portions in the width direction. The main body absorbent sheet 31 has a length extending from the intermediate part C to the front part F and the rear part R, and forms the outer shape of the absorbent layer 3.
The central absorbent sheet 32 has a folded structure that is folded in three on the surface layer 2 side by overlapping both end portions in the width direction. In the folded state, the central absorbent sheet 32 is narrower than the folded main body absorbent sheet 31, has a shorter length in the vertical direction than the main body absorbent sheet 31, and is centered in the width direction of the intermediate portion C. It is arranged in. The central absorbent sheet 32 is housed in the folding structure of the main body absorbent sheet 31.

上記の積層構造において、本体吸収性シート31の中央吸収性シート32よりも肌側にある部分31Aが、前述した吸収層3の肌側面3Aである。また、本体吸収性シート31の中央吸収性シート32よりも非肌側にある部分31Bが、前述した吸収層3の非肌側面3Bである。
また、中間部Cにおいて、本体吸収性シート31と中央吸収性シート32とが積層された部分が、前述した高坪量部33となる。この高坪量部33と平面視重なる裏面層2の非肌側面に粘着部7が配されることが好ましい。
In the above laminated structure, the portion 31 </ b> A on the skin side of the main body absorbent sheet 31 with respect to the central absorbent sheet 32 is the skin side surface 3 </ b> A of the absorbent layer 3 described above. Moreover, the part 31B which exists in the non-skin side rather than the center absorbent sheet 32 of the main body absorbent sheet 31 is the non-skin side surface 3B of the absorption layer 3 mentioned above.
Further, in the intermediate portion C, the portion where the main body absorbent sheet 31 and the central absorbent sheet 32 are laminated becomes the high basis weight portion 33 described above. It is preferable that the adhesive portion 7 is disposed on the non-skin side surface of the back surface layer 2 overlapping the high basis weight portion 33 in plan view.

吸収層3において、高坪量部33の厚み(H1)に対する、高坪量部33以外の部分の厚み(H2)の比(H2/H1)は、肌面に対して違和感なく使用できる観点から、1/5以上が好ましく、1/3以上がより好ましい。前記比(H2/H1)は、フィット性の観点から、4/5以下が好ましく、2/3以下がより好ましい。
また吸収層3において、高坪量部33の坪量(M1)に対する、高坪量部33以外の部分の坪量(M2)の比(M2/M1)は、***液吸収時の液拡散防止の観点から、1/4以上が好ましく、1/3以上がより好ましい。前記比(M2/M1)は、高坪量部と低坪量部の剛性差によるヨレ防止の観点から、7/8以下が好ましく、2/3以下がより好ましい。
In the absorbent layer 3, the ratio (H2 / H1) of the thickness (H2) of the portion other than the high basis weight portion 33 to the thickness (H1) of the high basis weight portion 33 can be used without a sense of incongruity on the skin surface. 1/5 or more is preferable, and 1/3 or more is more preferable. The ratio (H2 / H1) is preferably 4/5 or less and more preferably 2/3 or less from the viewpoint of fit.
In the absorption layer 3, the ratio (M2 / M1) of the basis weight (M2) of the portion other than the high basis weight portion 33 to the basis weight (M1) of the high basis weight portion 33 is the liquid diffusion prevention at the time of excretion fluid absorption. In view of the above, 1/4 or more is preferable, and 1/3 or more is more preferable. The ratio (M2 / M1) is preferably 7/8 or less, and more preferably 2/3 or less, from the viewpoint of preventing twist due to a difference in rigidity between the high basis weight part and the low basis weight part.

中央吸収性シート32の折り畳み構造としては、図5に示す態様に限らず、種々のものとすることができる。例えば、図6(A)〜(D)に示すような折り畳みであってもよい。図6(A)は、中央吸収性シート32の幅方向の両端部をそれぞれ肌面側と非肌面側とに折り返しS字状に折り畳んだ態様を示している。図6(B)は幅方向に二つ折りした態様を示している。図6(C)及び(D)は、幅方向に三つ折りした各部分の長さが等しくなるように折り畳んだ態様を示している。   The folding structure of the central absorbent sheet 32 is not limited to the mode shown in FIG. 5 and can be various. For example, it may be folded as shown in FIGS. FIG. 6A shows a state in which both end portions in the width direction of the central absorbent sheet 32 are folded back to the skin surface side and the non-skin surface side, respectively, and are folded in an S shape. FIG. 6B shows a state in which the sheet is folded in the width direction. 6 (C) and 6 (D) show a state in which each part folded in the width direction is folded to have the same length.

本体吸収性シート31の折り畳み構造は、図5に示す態様に限らず、種々のものとすることができる。例えば、中央吸収性シート32の折り畳み構造として示した図6(A)〜(D)と同様のものとしてもよい。また肌面側と非肌面側とに分かれた2枚のシートを積層した構造であってもよい。さらに、本体吸収性シート31の折り畳み構造の内部に中央吸収性シート32を内包する態様に限定されず、内包せずに、本体吸収性シート31の折り畳み構造の非肌面側に中央吸収性シート32を積層する態様であってもよい。
ただし、本体吸収性シート31の折り畳み構造の内部に中央吸収性シート32を内包する態様であると、冷感剤の揮発成分をより溜めやすくなり、後述の連通部8の作用の観点から好ましい。
The folding structure of the main body absorbent sheet 31 is not limited to the mode shown in FIG. 5 and can be various. For example, it is good also as a thing similar to FIG. 6 (A)-(D) shown as a folding structure of the center absorbent sheet 32. FIG. Moreover, the structure which laminated | stacked two sheets divided into the skin surface side and the non-skin surface side may be sufficient. Furthermore, the central absorbent sheet 32 is not limited to a mode in which the central absorbent sheet 32 is included in the folded structure of the main body absorbent sheet 31, and the central absorbent sheet is not disposed on the non-skin surface side of the folded structure of the main body absorbent sheet 31. 32 may be laminated.
However, a mode in which the central absorbent sheet 32 is included in the folded structure of the main body absorbent sheet 31 makes it easier to collect volatile components of the cooling sensation agent, which is preferable from the viewpoint of the operation of the communication unit 8 described later.

吸収層3がどのような積層構造を有していても、吸収性シートの重なり部分が接合されないことが好ましい。これにより、吸収層3の層間の空間が形成されやすく、前述の層間の開閉性が高まる。その結果、連通部8を通じた冷感剤の揮発成分の肌への送り込みをより発現させやすくすることができる。   Whatever laminated structure the absorbent layer 3 has, it is preferable that the overlapping portion of the absorbent sheet is not joined. Thereby, the space between the layers of the absorption layer 3 is easily formed, and the opening / closing property between the above-described layers is enhanced. As a result, the feeding of the volatile component of the cooling sensation agent to the skin through the communication part 8 can be more easily expressed.

本実施形態において、吸収層3は、図7〜9に示すように、肌側面から厚み方向への連通部8を有することが好ましい。   In this embodiment, it is preferable that the absorption layer 3 has the communication part 8 from the skin side surface to the thickness direction, as shown to FIGS.

連通部8とは、吸収層3の厚さ方向に配された通気手段である。連通部8は、冷感剤の揮発成分を肌面へ誘導する通気手段として、少なくとも吸収層3の肌面側に配されていることが好ましい。連通部8は、冷感剤の揮発成分の移動経路、吸収層3等の変形による空気の移動経路として作用する。これらの作用は、前述した冷感剤の含有量の配分に対して冷感効果を長く維持する観点から効果的である。特に時間が経って冷感剤の含有残存量が少なくなってきたときに、肌へと、吸収層3内部(例えば、層状にされたシート間)に溜まった冷感剤の揮発成分を十分に送り込むことができる。例えば、冷感剤が吸収層3の奥に残存する場合には、表面層1及び中間繊維層4から発せられる冷感が薄らいだ後でも、時間差をもって、連通部8の存在によって吸収層3内部から肌面へと冷感剤の揮発成分を積極的に送り込むことができる。冷感剤の送り込みは、例えば、ナプキン着用時の着用者の体の動きに伴う、吸収層の変形などによって、より効果的に行われる。   The communication part 8 is a ventilation means arranged in the thickness direction of the absorption layer 3. The communicating portion 8 is preferably disposed at least on the skin surface side of the absorbent layer 3 as a ventilation means for guiding the volatile components of the cooling sensation agent to the skin surface. The communication part 8 acts as a movement path of the volatile component of the cooling sensation agent and an air movement path by deformation of the absorption layer 3 and the like. These actions are effective from the viewpoint of maintaining the cooling effect for a long time with respect to the distribution of the content of the cooling agent described above. In particular, when the remaining amount of the cooling sensation agent decreases over time, the volatile components of the cooling sensation accumulated in the absorption layer 3 (for example, between the layered sheets) are sufficiently absorbed into the skin. Can be sent. For example, when the cooling sensation agent remains in the back of the absorption layer 3, even after the cooling sensation emitted from the surface layer 1 and the intermediate fiber layer 4 has faded, the presence of the communication portion 8 causes a difference in time within the absorption layer 3. The volatile components of the cooling sensation agent can be actively sent from the skin to the skin. The feeding of the cooling sensation agent is performed more effectively by, for example, deformation of the absorbent layer accompanying the movement of the wearer's body when the napkin is worn.

なお、図8においては、吸収層3を、吸収性シートの積層構造を有し、高坪量部33を有するものとして示しているが、これに限定されず種々の態様のものとすることができる。また、図8においては、高坪量部33と粘着部7とが重なる態様を示しているが、両部材が重ならない態様であってもよい。
ただし、連通部8によって冷感剤の揮発成分を肌へより効果的に送り込む観点から、吸収層3が前述した吸収性シートの積層構造を有することがより好ましい。積層構造を有する吸収層3に対し連通部8を配すると、層間に冷感剤の揮発成分を一時貯留しながら連通部8を通じて肌面へと送り込み、変わらない適度な冷感をより長く感じさせることができる。その際、着用者の動きに応じて吸収層3の層間が開閉し、連通部8を介した冷感剤の揮発成分をより肌側へと送り出しやすくなる。
In addition, in FIG. 8, although the absorption layer 3 has shown the laminated structure of an absorptive sheet and has the high basic weight part 33, it is not limited to this but shall be a thing of various aspects. it can. Moreover, in FIG. 8, although the aspect with which the high basic weight part 33 and the adhesion part 7 overlap is shown, the aspect in which both members do not overlap may be sufficient.
However, from the viewpoint of more effectively sending the volatile components of the cooling sensation agent to the skin through the communication portion 8, it is more preferable that the absorbent layer 3 has the above-described laminated structure of the absorbent sheet. If the communication part 8 is arranged with respect to the absorption layer 3 which has a laminated structure, it will send to the skin surface through the communication part 8 while temporarily storing the volatile component of a cooling sensation agent between layers, and it will feel the moderate cool feeling which does not change for a long time. be able to. At that time, the layer of the absorbent layer 3 opens and closes according to the movement of the wearer, and the volatile components of the cooling sensation agent via the communicating portion 8 are more easily sent out to the skin side.

連通部8は、吸収層3の、部材のない隙間部分すなわち貫通部であってもよく、部材の一部が押圧されて窪んだ圧搾部であってもよく、部材の坪量が部分的に小さくされた凹部空間であってもよい。貫通部としては、例えば、細長く切り込まれたスリット部又は部材の一部が切り欠かれた部分などが挙げられる。貫通部や凹部空間においては冷感剤の揮発成分を内部から外部へと放出する開口をなす。圧搾部においては外部と接する表面積が増え、それによって圧搾部近傍から冷感剤の揮発成分を放出しやすくなる。   The communicating portion 8 may be a gap portion without a member, that is, a penetrating portion of the absorbent layer 3, or may be a compressed portion that is depressed by pressing a part of the member, and the basis weight of the member is partially The recessed space made small may be sufficient. Examples of the penetrating portion include a slit portion that is cut into an elongated shape or a portion in which a part of the member is cut out. In the penetrating portion and the recessed space, an opening is formed for releasing the volatile component of the cooling sensate from the inside to the outside. In the pressing part, the surface area in contact with the outside increases, and thereby the volatile components of the cooling sensation agent are easily released from the vicinity of the pressing part.

図7〜9においては、連通部8として、吸収層3に配された貫通部8(スリット部81)、表面層1、中間繊維層4及び吸収層3を厚み方向に圧搾(エンボス処理)した防漏溝83が配されている。なお、下記に示す貫通部8としてスリット部81の態様は、スリット部以外の貫通部についても適宜適用できる。   7-9, as the communication part 8, the penetration part 8 (slit part 81) distribute | arranged to the absorption layer 3, the surface layer 1, the intermediate fiber layer 4, and the absorption layer 3 were squeezed in the thickness direction (embossing process). A leak-proof groove 83 is arranged. In addition, the aspect of the slit part 81 as the penetration part 8 shown below is applicable suitably also about penetration parts other than a slit part.

スリット部81は、吸収層3の縦方向に沿って延在する長さを有し、吸収層3の面方向に複数、分散配置されている。本実施形態においては、複数のスリット部81を縦方向に離間して配列させ、縦方向の列を幅方向に離間させて配置している。これにより、冷感剤の平面方向への滲出方向を好適に制御しながら、吸収層3の広い領域から冷感剤の揮発成分を肌へと送り出すことができる。ただし、スリット部81の分散配置は、これに限定されず、吸収層3内部にある冷感剤の揮発成分が効果的に肌へと送り出すことができる種々の態様とすることができる。   The slit portion 81 has a length extending along the longitudinal direction of the absorption layer 3, and a plurality of the slit portions 81 are distributed in the surface direction of the absorption layer 3. In the present embodiment, the plurality of slit portions 81 are arranged apart from each other in the vertical direction, and the vertical rows are arranged apart from each other in the width direction. Thereby, the volatile component of a cooling sensation agent can be sent out to the skin from the wide area | region of the absorption layer 3, controlling the exuding direction to the plane direction of a cooling sensation agent suitably. However, the dispersive arrangement of the slit portions 81 is not limited to this, and can be various modes in which the volatile components of the cooling sensation agent inside the absorption layer 3 can be effectively delivered to the skin.

ここで言う「スリット部」は、部材断絶の幅が0.5mm以下の切り込み部分として定義でき、好ましくは0.3mm以下であり、より好ましくは0.2mm以下である。スリット部81の「幅」とは、ナプキン10の平面視において、スリット部81の延出する長さ方向に直交する方向の、断絶された部材間の距離(開口幅)をいう。スリット部81の幅は、ナプキン10から吸収層3を取り出して水平な台に静置し、張力を加えない自然状態において、株式会社キーエンス製のデジタルマイクロスコープVHX−900によって測定することができる。測定に際し、測定倍率は適宜調整して測定する。   The “slit portion” as used herein can be defined as a cut portion having a member breakage width of 0.5 mm or less, preferably 0.3 mm or less, and more preferably 0.2 mm or less. The “width” of the slit portion 81 refers to the distance (opening width) between the disconnected members in a direction orthogonal to the length direction in which the slit portion 81 extends in the plan view of the napkin 10. The width of the slit portion 81 can be measured by a digital microscope VHX-900 manufactured by Keyence Corporation in a natural state where the absorbent layer 3 is taken out from the napkin 10 and is left on a horizontal base, and no tension is applied. In measurement, the measurement magnification is adjusted as appropriate.

スリット部81は、吸収層3の厚さ方向において、種々の深さを有するものであってもよい。例えば、肌面側から所定深さにまであってもよく、吸収層3の厚さ方向全体に亘ってあってもよい。吸収層3内部にある冷感剤の揮発した成分を肌へと送り出す連通部としての機能を発現させる観点から、スリット部81は、少なくとも吸収層3の肌面側から冷感剤が含有される領域までの所定深さまでに配されることが好ましい。特に、吸収層3の高坪量部33において貫通部(スリット部81)が存在することが、冷感剤の揮発成分が効果的に肌へ送り出され易くなるので好ましい。   The slit portion 81 may have various depths in the thickness direction of the absorption layer 3. For example, it may extend from the skin surface side to a predetermined depth, or may extend over the entire thickness direction of the absorbent layer 3. From the viewpoint of expressing a function as a communication part for sending the volatilized component of the cooling sensation agent inside the absorption layer 3 to the skin, the slit part 81 contains the cooling sensation agent from at least the skin surface side of the absorption layer 3. It is preferable to be arranged up to a predetermined depth up to the region. In particular, it is preferable that a through portion (slit portion 81) is present in the high basis weight portion 33 of the absorbent layer 3 because the volatile components of the cooling sensation agent are easily delivered to the skin.

また、スリット部81は、吸収層8のみに配される場合に限らず、中間繊維層4から吸収層3までを同じ位置で貫通するものがあってもよい。これにより、冷感剤の揮発成分の通り道が吸収層3から中間繊維層4まで連続し、吸収層3内部から肌へと円滑に送り出すことができる。   Further, the slit portion 81 is not limited to being disposed only in the absorbent layer 8, and there may be one that penetrates from the intermediate fiber layer 4 to the absorbent layer 3 at the same position. Thereby, the passage of the volatile component of the cooling sensation agent is continuous from the absorption layer 3 to the intermediate fiber layer 4 and can be smoothly sent out from the inside of the absorption layer 3 to the skin.

一方、連通部8として配される防漏溝83は、表面層1から中間繊維層4、吸収層3までを圧搾し形成されている。すなわち、表面層1、中間繊維層4及び吸収層3が同じ位置において凹状にされ、層間の距離が縮められている。これにより、防漏溝83の近傍において、冷感剤の揮発成分の肌側への通り道ができ、吸収層3、中間繊維層4に含有される冷感剤が揮発した成分を肌へと送り出しやすくなる。また、防漏溝83によって、冷感剤が幅方向に滲出する範囲及び量を制限することができ、着用者の鼠蹊部付近への冷感による過剰な刺激を抑制することができる。   On the other hand, the leak-proof groove 83 arranged as the communication portion 8 is formed by pressing from the surface layer 1 to the intermediate fiber layer 4 and the absorbent layer 3. That is, the surface layer 1, the intermediate fiber layer 4, and the absorption layer 3 are recessed at the same position, and the distance between the layers is shortened. Thereby, the passage of the volatile component of the cooling sensation agent to the skin side can be made in the vicinity of the leak-proof groove 83, and the component in which the cooling sensation agent contained in the absorption layer 3 and the intermediate fiber layer 4 is volatilized is sent to the skin. It becomes easy. Moreover, the leak prevention groove | channel 83 can restrict | limit the range and quantity which a cooling agent exudes in the width direction, and can suppress the excessive irritation | stimulation by the cooling sensation to a wearer's buttocks vicinity.

防漏溝83は、***液の横漏れを防止し冷感剤の幅方向への滲出を防止する観点から、平面視して少なくとも受液領域C1挟んで縦方向に並走し延出する形状を有することが好ましい。本実施形態においては、防漏溝83は、中間部Cにおいて、受液領域C1の両側から縦方向(Y方向)に延出して前方部F及び後方部Rにおいて連結して環状にされた部分を有する。さらに防漏溝83は、前記環状部分の中に、前方部F及び後方部Rに円弧状にされた部分を有する。環状及び円弧状にされた防漏溝83はいずれも、ナプキン10の縦方向に延びる幅方向中心線Lを軸として左右対称である。
防漏溝83が有する平面形状は、連続線によって形成されていてもよく、断続的な圧搾部分を線状に配列したものであってもよい。断続的とは、例えば点線状、鎖線(ミシン目)状、等を意味する。防漏溝83は一重に配されていても、二重以上に配されていてもよい。
The leak-proof groove 83 has a shape that runs parallel to and extends in the vertical direction at least across the liquid-receiving region C1 in a plan view from the viewpoint of preventing lateral leakage of excretory fluid and preventing exudation of the cooling sensate in the width direction. It is preferable to have. In the present embodiment, the leak-proof groove 83 is a portion that extends in the longitudinal direction (Y direction) from both sides of the liquid receiving region C1 in the intermediate portion C and is connected to the front portion F and the rear portion R in an annular shape. Have Further, the leak-proof groove 83 has arc-shaped portions in the front portion F and the rear portion R in the annular portion. Both the annular and arcuate leak-proof grooves 83 are symmetric with respect to the widthwise center line L extending in the vertical direction of the napkin 10.
The planar shape of the leak-proof groove 83 may be formed by a continuous line, or may be a linear arrangement of intermittent compressed portions. Intermittent means, for example, a dotted line shape, a chain line (perforation) shape, and the like. The leak-proof grooves 83 may be arranged in a single layer or in a double or more manner.

前述したスリット部81と防漏溝83とが一部接していることが好ましい。ここで言う「接する」とは、防漏溝83において圧搾された吸収層3の窪み部分にスリット部81の一部が重なることをいう。これによって、ナプキン10着用時に、外圧が生じてもスリット部81の開口部が開きすぎず、スリット部8の開口部からの冷感剤の過剰な揮発を抑制でき、程良い冷感付与をより効果的に実現し得る。   It is preferable that the slit portion 81 and the leak-proof groove 83 described above are in contact with each other. Here, “contact” means that a part of the slit portion 81 overlaps a hollow portion of the absorbent layer 3 squeezed in the leak-proof groove 83. Thereby, when the napkin 10 is worn, even if an external pressure is generated, the opening of the slit part 81 does not open too much, and excessive volatilization of the cooling sensation agent from the opening of the slit part 8 can be suppressed. It can be realized effectively.

このように連通部8は、少なくとも吸収層3に配されており、吸収層3のみに配されるものでもよく、吸収層3と中間繊維層4とを同じ位置で貫通するものでもよく、表面層1、中間繊維層4及び吸収層3を同じ位置で貫通するものであってもよい。連通部8が吸収層3を貫通する貫通部であると、冷感剤の揮発成分の通り道が吸収層3の厚さ方向に亘って連続し、吸収層3内部から肌へと円滑に送り出すことができる。
また、これとは別に、連通部8として、表面層1及び中間繊維層4の少なくとも一方が厚み方向に凹状にされたものが配されていてもよい(例えば、表面層1のみ又は表面層1と中間繊維層4とを圧搾する点エンボスなど。)。
Thus, the communication part 8 is arranged at least in the absorption layer 3, may be arranged only in the absorption layer 3, or may penetrate the absorption layer 3 and the intermediate fiber layer 4 at the same position. The layer 1, the intermediate fiber layer 4, and the absorbent layer 3 may be penetrated at the same position. When the communicating part 8 is a penetrating part that penetrates the absorbent layer 3, the passage of the volatile components of the cooling sensation agent continues over the thickness direction of the absorbent layer 3, and smoothly feeds from the inside of the absorbent layer 3 to the skin. Can do.
Separately from this, as the communication portion 8, at least one of the surface layer 1 and the intermediate fiber layer 4 may be disposed in a concave shape in the thickness direction (for example, only the surface layer 1 or the surface layer 1). And embossing to squeeze the intermediate fiber layer 4.).

また、連通部8が、部分的に坪量の小さい凹部空間82である場合の具体例としては、例えば、図10(A)及び(B)に示す吸収層310A及び310Bが挙げられる。これらは、親水性繊維の積繊体又は親水性繊維と高吸水性ポリマー材との混合積繊体であって、所定の厚みを有し、部分的に坪量が減じられた凹凸形状を有する。
具体的には、図10(A)に示す吸収層310Aは、表面層1側(肌面側)にブロック状の凸部311を複数有し、凸部311、311間に、坪量の小さい凹部空間82を連通部8として複数有する。また、図10(B)に示す吸収層310Bは、裏面層2側(非肌面側)に、ブロック状の凸部311と、連通部8としての凹部空間82とを複数有する。図10(A)においては裏面層2側に、図10(B)においては表面層1側に、凹部空間82の底を塞いで凸部311同士を繋ぐ薄皮部312を有する。
Moreover, as a specific example in case the communication part 8 is the recessed part space 82 with a small basic weight partially, the absorption layers 310A and 310B shown to FIG. 10 (A) and (B) are mentioned, for example. These are laminated fibers of hydrophilic fibers or mixed fibers of hydrophilic fibers and a highly water-absorbing polymer material, and have a predetermined thickness and a concavo-convex shape with a partially reduced basis weight. .
Specifically, the absorption layer 310A illustrated in FIG. 10A includes a plurality of block-shaped convex portions 311 on the surface layer 1 side (skin surface side), and the basis weight is small between the convex portions 311 and 311. A plurality of recessed spaces 82 are provided as the communicating portions 8. 10B has a plurality of block-shaped convex portions 311 and a plurality of concave spaces 82 as the communicating portions 8 on the back layer 2 side (non-skin surface side). 10A, the back layer 2 side is provided, and in FIG. 10B, the surface layer 1 side is provided with a thin skin portion 312 that closes the bottom of the recessed space 82 and connects the protruding portions 311 to each other.

本実施形態においては、肌の敏感な部分への刺激を抑制する観点から、前述したサイドシート5が、吸収層3の幅方向外方から吸収層3の幅方向両端縁39を跨ぎ、縦方向に延出していることが好ましい。また、少なくとも中間部Cにおいて、サイドシート5の内側端が、最も幅方向外方に位置する連通部8より幅方向外側にあることが好ましい。これにより、仮に冷感剤が連通部8を越えて滲出する場合でも、サイドシート5により、冷感剤の揮発成分が着用者の鼠蹊部の付近を直接的に刺激することを抑えることができる。このとき、サイドシート5が表面層1よりも通気性が低いことが、肌刺激のより効果的な抑制の観点から好ましい。通気性は、この種の物品に用いられる方法により適宜設定できる。例えば、サイドシート5が不織布からなる場合に、繊維間距離を狭めたり、用いる油剤を選択したりして通気性を抑えることができる。通気性は、JIS L1913の「6.8.2 ガーレ形式」によって測定したときに、サイドシート5の通気度が表面層1の通気度よりも低いことが好ましい。なお、サイドシートが当該ガーレ形式で測定できないほど小さい場合には、サイドシートを、その大きさより小さい開口を有する非通気性のフィルム材(好ましくは、コクヨ製OHPフィルム等)に貼り付けて測定を行い、開口面積値を当該ガーレ形式で規定される面積(642mm)に換算する。In the present embodiment, from the viewpoint of suppressing irritation to a sensitive portion of the skin, the side sheet 5 described above straddles the width direction both edges 39 of the absorbent layer 3 from the width direction outer side of the absorbent layer 3, and the vertical direction. It is preferable to extend. Further, at least in the middle portion C, it is preferable that the inner end of the side seat 5 is located on the outer side in the width direction with respect to the communication portion 8 positioned on the outermost side in the width direction. Thereby, even when a cooling sensation agent exudes beyond the communicating part 8, it can suppress that the volatile component of a cooling sensation stimulates the vicinity of a wearer's buttocks directly by the side sheet 5. FIG. . At this time, it is preferable from the viewpoint of more effective suppression of skin irritation that the side sheet 5 has lower air permeability than the surface layer 1. The air permeability can be appropriately set by a method used for this type of article. For example, when the side sheet 5 is made of a nonwoven fabric, the air permeability can be suppressed by narrowing the distance between fibers or selecting an oil agent to be used. The air permeability is preferably such that the air permeability of the side sheet 5 is lower than the air permeability of the surface layer 1 when measured according to “6.8.2 Gurley type” of JIS L1913. When the side sheet is too small to be measured in the Gurley format, the side sheet is attached to a non-breathable film material (preferably an OH film made by KOKUYO, etc.) having an opening smaller than the size. The opening area value is converted into an area (642 mm 2 ) defined in the Gurley format.

ナプキン10を構成する部材の形成材料は、この種の物品に用いられるものを特に制限なく用いることができる。   As the material for forming the member constituting the napkin 10, those used for this type of article can be used without any particular limitation.

冷感剤としては、着用者の皮膚及び/又は粘膜表面の温度受容器を刺激して、皮膚及び/又は粘膜表面上の温度を変化させることなしに、着用者に冷感、爽快感を伝えることのできる種々の剤を用いることができる。例えば、シクロヘキシル誘導体、シクロヘキサノール誘導体、カルボキサミド類など、特開2015−12918号公報の段落[0006]〜[0086]に記載のものが挙げられる。冷感剤は1種又は2種以上を用いることができる。
その中でも、匂いによる爽快感と速効性、持続性の観点から、水不溶性又は水難溶性のものが好ましい。非水溶性又は水難溶性のものとしては、乳酸メンチル、メントールが好ましい。ここで言う「水不溶性又は水難溶性」とは、25℃の水1Lに対して1g以下の溶解性であることを言い、特に「水不溶性」は25℃の水1Lに対して0.1g以下の溶解性であることを言う。
冷感剤は、種々の方法によってナプキン10に含ませることができる。例えば、溶媒に溶解させた状態でナプキン10に含ませてもよく、溶媒を用いずに含ませてもよい。また冷感剤はマイクロカプセルに包むなどデリバリー手段を伴ってナプキン10に含ませてもよい。前記溶媒としては、通常用いられる種々のものを採用できる。例えば、ジプロピレングリコールなどが挙げられる。
As a cooling sensation agent, a temperature sensation on the skin and / or mucosal surface of the wearer is stimulated to convey a feeling of cooling and refreshing to the wearer without changing the temperature on the skin and / or mucosal surface. Various agents that can be used can be used. Examples thereof include those described in paragraphs [0006] to [0086] of JP-A-2015-12918, such as cyclohexyl derivatives, cyclohexanol derivatives, and carboxamides. 1 type (s) or 2 or more types can be used for a cooling agent.
Among these, water-insoluble or poorly water-soluble ones are preferable from the viewpoint of refreshing feeling due to odor, rapid efficacy, and sustainability. As the water-insoluble or poorly water-soluble material, menthyl lactate and menthol are preferable. The term “water-insoluble or hardly water-soluble” as used herein means a solubility of 1 g or less in 1 L of water at 25 ° C., and particularly “water-insoluble” is 0.1 g or less in 1 L of water at 25 ° C. Say that it is soluble.
The cooling agent can be included in the napkin 10 by various methods. For example, it may be included in the napkin 10 in a state dissolved in a solvent, or may be included without using a solvent. The cooling sensation agent may be included in the napkin 10 with delivery means such as wrapping in a microcapsule. As the solvent, various commonly used solvents can be adopted. For example, dipropylene glycol etc. are mentioned.

冷感剤としては、特に、メントール及び乳酸メンチルを含むことが、冷感効果を着用後素早く感じられると共に穏やかなものとし、持続性を高めることから好ましい。同様の観点から、メントールと乳酸メンチルの含有量は、前者/後者の質量比で、0.01以上が好ましく、0.02以上がより好ましく、また、0.2以下が好ましく、0.15以下がより好ましい。   As the cooling sensation agent, in particular, menthol and menthol lactylate are preferable because the cooling sensation effect can be felt quickly after wearing, is gentle, and increases durability. From the same viewpoint, the content of menthol and menthyl lactate is preferably the former / the latter mass ratio, preferably 0.01 or more, more preferably 0.02 or more, and preferably 0.2 or less, 0.15 or less. Is more preferable.

吸収層3としては、前述した冷感剤量の配分を実現し得るものである限り、吸収性物品として通常用いられる種々の形態のものを特に制限なく採用することができる。例えば、親水性繊維の積繊体または親水性繊維と高吸水性ポリマー材との混合積繊体を親水性の被覆シートで覆ったものでもよい。また、親水性繊維からなる2つのシート状の繊維層間に高吸水性ポリマー材を挟持して固定した薄い吸収性シートから構成されていてもよい。   As the absorbent layer 3, as long as the above-described distribution of the cooling sensation agent can be realized, various forms that are usually used as absorbent articles can be employed without any particular limitation. For example, a laminated fiber body of hydrophilic fibers or a mixed fiber body of hydrophilic fibers and a superabsorbent polymer material may be covered with a hydrophilic covering sheet. Moreover, you may be comprised from the thin absorbent sheet which pinched | interposed and fixed the superabsorbent polymer material between the two sheet-like fiber layers which consist of a hydrophilic fiber.

吸収層3を構成する親水性繊維としては、疎水性の繊維を親水化処理したもの、それ自体が親水性であるものが挙げられる。特に、それ自体が親水性でかつ保水性を有するものが好ましい。後者の親水性繊維としては、天然系の繊維、セルロース系の再生繊維又は半合成繊維が好ましい例として挙げられる。親水性繊維としては、特にパルプ、レーヨンが好ましく、パルプが一層好ましい。更にセルロース繊維の分子内及び/又は分子間を架橋させた架橋セルロース繊維や木材パルプをマーセル化処理して得られるような嵩高性のセルロース繊維を用いてもよい。パルプとしては、針葉樹クラフトパルプ或いは広葉樹クラフトパルプのような木材パルプ、木綿パルプ或いはワラパルプ等の天然セルロース繊維等が挙げられるが、それらに限定されるものではない。これらのパルプは1種又は2種以上を用いることができる。   Examples of the hydrophilic fiber constituting the absorption layer 3 include those obtained by subjecting hydrophobic fibers to a hydrophilic treatment and those that are hydrophilic per se. Particularly preferred are those which are themselves hydrophilic and have water retention. Preferred examples of the latter hydrophilic fibers include natural fibers, cellulosic regenerated fibers, and semi-synthetic fibers. As the hydrophilic fiber, pulp and rayon are particularly preferable, and pulp is more preferable. Furthermore, a bulky cellulose fiber obtained by mercerizing a crosslinked cellulose fiber or wood pulp in which cellulose fibers are intermolecularly and / or intermolecularly crosslinked may be used. Examples of the pulp include, but are not limited to, wood pulp such as softwood kraft pulp or hardwood kraft pulp, natural cellulose fiber such as cotton pulp or straw pulp, and the like. These pulps can be used alone or in combination of two or more.

吸収層3を構成する高吸水性ポリマー材としては、例えば、アクリル酸又はアクリル酸塩を主成分とし、場合によって架橋剤を添加してなる水溶性のエチレン性不飽和モノマーを重合させて得られるヒドロゲル材料が挙げられる。また、ポリエチレンオキサイド、ポリビニルピロリドン、スルホン化ポリスチレン及びポリビニルピリジンの架橋物、デンプン−ポリ(メタ)アクリロニトリルグラフト共重合物のケン化物、デンプン−ポリ(メタ)アクリル酸グラフト共重合物、デンプン−ポリ(メタ)アクリルエステルグラフト共重合物の加水分解物などが挙げられる。これらの高吸水性ポリマー材は1種を単独で、又は2種以上を組み合わせて用いることができる。高吸水性ポリマー材としては、自重の20倍以上、特に50倍以上の純水を吸収・保持できゲル化し得るものが好ましい。
高吸水性ポリマー材の形状は、吸収層に用いられる種々のものを特に制限なく用いることができる。例えば、球状、粒状、繊維状、俵状、塊状などが挙げられる。
The superabsorbent polymer material constituting the absorbent layer 3 is obtained, for example, by polymerizing a water-soluble ethylenically unsaturated monomer comprising acrylic acid or acrylate as a main component and optionally adding a crosslinking agent. Hydrogel materials are mentioned. In addition, polyethylene oxide, polyvinylpyrrolidone, sulfonated polystyrene and polyvinylpyridine cross-linked product, saponified product of starch-poly (meth) acrylonitrile graft copolymer, starch-poly (meth) acrylic acid graft copolymer, starch-poly ( Examples thereof include hydrolysates of (meth) acrylic ester graft copolymers. These superabsorbent polymer materials can be used alone or in combination of two or more. As the highly water-absorbing polymer material, a material that can absorb and retain pure water 20 times or more, particularly 50 times or more of its own weight, and can be gelled is preferable.
As the shape of the superabsorbent polymer material, various materials used for the absorbent layer can be used without particular limitation. For example, a spherical shape, a granular shape, a fibrous shape, a bowl shape, a lump shape, and the like can be given.

表面層1は、液透過性を有する種々のシートを用いることができる。肌触りの良さを考慮すると、親水性の不織布が好ましく、サーマルボンド不織布がより好ましく、エアスルー不織布が特に好ましい。表面層1の不織布を構成する繊維は、親水化処理された熱可塑性樹脂繊維であり、かつ、該繊維が2次クリンプ又は3次クリンプのような立体捲縮がなされた繊維であることが好ましい。具体的には、表面層1の不織布を構成する繊維はポリエチレン、ポリプロピレン、ポリエステル(ポリエチレンテレフタレート等)、ナイロン、及びこれらの複合繊維を作成し、所定の長さにカットしてステープルを形成する前の段階で、各種親水化剤を塗工することで親水化する。親水化剤としては、αオレフィンスルホン酸塩に代表される各種アルキルスルホン酸塩、アクリル酸塩、アクリル酸塩/アクリルアミド共重合体、エステルアミド、エステルアミドの塩、ポリエチレングリコール及びその誘導物、水溶性ポリエステル樹脂、各種シリコーン誘導物、各種糖類誘導物、及びこれらの混合物など、通常用いられる親水化剤による親水化処理を用いることができる。   As the surface layer 1, various sheets having liquid permeability can be used. In consideration of the touch, a hydrophilic nonwoven fabric is preferable, a thermal bond nonwoven fabric is more preferable, and an air-through nonwoven fabric is particularly preferable. It is preferable that the fibers constituting the nonwoven fabric of the surface layer 1 are thermoplastic resin fibers that have been subjected to a hydrophilic treatment, and that the fibers are sterically crimped fibers such as secondary crimps or tertiary crimps. . Specifically, the fibers constituting the nonwoven fabric of the surface layer 1 are polyethylene, polypropylene, polyester (polyethylene terephthalate, etc.), nylon, and composite fibers of these, before being cut into a predetermined length to form staples. At this stage, it is hydrophilized by applying various hydrophilizing agents. Hydrophilic agents include various alkyl sulfonates represented by α-olefin sulfonates, acrylates, acrylate / acrylamide copolymers, ester amides, ester amide salts, polyethylene glycol and derivatives thereof, water-soluble Hydrophilic treatment with a commonly used hydrophilizing agent such as a basic polyester resin, various silicone derivatives, various sugar derivatives, and mixtures thereof can be used.

裏面層2としては、防漏性を有する種々のものを用いることができる。例えば、非透湿性若しくは透湿性フィルム単独、又はフィルムと不織布とを貼り合わせたもの、撥水性の不織布(SMSやSMMS等)を用いることができる。コスト面やズレ止め粘着剤とのマッチングなどから、非透湿性フィルム単独を防漏材として用いることが最も好ましい。   As the back surface layer 2, various layers having leakage prevention properties can be used. For example, a non-moisture permeable or moisture permeable film alone, a film obtained by bonding a film and a nonwoven fabric, or a water-repellent nonwoven fabric (such as SMS or SMMS) can be used. It is most preferable to use a non-moisture permeable film alone as a leak-proof material from the viewpoint of cost and matching with an anti-displacement adhesive.

中間繊維層4としては、親水性を有し液拡散性に優れているものが好ましい。熱可塑性繊維を含む不織布などが挙げられる。不織布としては、各種の製法によって得られた不織布を用いることができる。例えば、カード法又はエアレイド法により得た繊維ウエブにエアスルー法で繊維どうしの熱融着点を形成したエアスルー不織布、カード法により得た繊維ウエブにヒートロール法で繊維同士の熱融着点を形成したヒートロール不織布、ヒートエンボス不織布、スパンレース不織布、ニードルパンチ不織布、レジンボンド不織布等の種々の不織布を用いることができる。   The intermediate fiber layer 4 is preferably one having hydrophilicity and excellent liquid diffusibility. Nonwoven fabrics containing thermoplastic fibers can be mentioned. As a nonwoven fabric, the nonwoven fabric obtained by various manufacturing methods can be used. For example, an air-through nonwoven fabric in which heat-bonding points between fibers are formed on a fiber web obtained by the card method or airlaid method, and a heat-bonding point between fibers is formed on a fiber web obtained by the card method by a heat roll method. Various nonwoven fabrics such as heat roll nonwoven fabric, heat embossed nonwoven fabric, spun lace nonwoven fabric, needle punched nonwoven fabric, and resin bonded nonwoven fabric can be used.

サイドシート5としては、撥水性の不織布が好ましく、カード法により製造された不織布、スパンボンド不織布、メルトブローン不織布、スパンレース不織布、ヒートロール不織布、ニードルパンチ不織布等の中から撥水性の物、又は撥水処理した種々の不織布を用いることができる。特に好ましくは、例えば、スパンボンド不織布、スパンボンド−メルトブローン(SM)不織布、スパンボンド−メルトブローン−スパンボンド(SMS)不織布等が用いられる。   The side sheet 5 is preferably a water-repellent non-woven fabric, and is water-repellent from among non-woven fabrics, spunbond nonwoven fabrics, meltblown nonwoven fabrics, spunlace nonwoven fabrics, heat roll nonwoven fabrics, needle punched nonwoven fabrics manufactured by the card method. Various non-woven fabrics treated with water can be used. Particularly preferably, for example, a spunbond nonwoven fabric, a spunbond-meltblown (SM) nonwoven fabric, a spunbond-meltblown-spunbond (SMS) nonwoven fabric, or the like is used.

本発明の吸収性物品は、上記の実施形態の生理用ナプキンに制限されるものではなく、例えばパンティライナー、失禁パッド、尿とりパッド、使い捨ておむつ等に適応することができる。また、経血に限らずその他、尿、オリモノ、軟便等に対しても効果的である。また、上記構成部材の他、用途や機能に合わせ適宜部材を組み込んでもよい。   The absorbent article of the present invention is not limited to the sanitary napkin of the above embodiment, and can be applied to, for example, panty liners, incontinence pads, urine collection pads, disposable diapers and the like. Moreover, it is effective not only for menstrual blood but also urine, orimono, loose stool, and the like. In addition to the above-described constituent members, members may be incorporated as appropriate according to the application and function.

また、本発明の吸収性物品は、生理用ナプキンやパンティライナーなど1製品毎にカバンなどに入れて持ち運びされる物である場合、個包装されていることが好ましい。具体的には、表面層が内側になるよう縦方向に折り畳まれて、個包装用の外装材によって包まれた吸収性物品個包装体とされていることが好ましい。個包装体とすることで、肌に触れる表面層(使用面)の衛生を守りつつ、携帯性の高い物品することこができ、使用者の利便性を高めることができる。   Moreover, when the absorbent article of the present invention is a product that is carried in a bag or the like for each product such as a sanitary napkin or a panty liner, it is preferably packaged individually. Specifically, it is preferable that the absorbent article is individually packaged by being folded in the vertical direction so that the surface layer is on the inner side and wrapped with an exterior packaging material for individual packaging. By using the individual package, it is possible to manufacture a highly portable article while maintaining the hygiene of the surface layer (use surface) that touches the skin, and the convenience of the user can be enhanced.

上述した実施形態に関し、本発明は更に以下の吸収性物品を開示する。   This invention discloses the following absorbent articles further regarding embodiment mentioned above.

<1> 表面層、裏面層、及び前記表面層と前記裏面層との間に配された吸収層を備え、前記表面層と前記吸収層との間に中間繊維層を備える吸収性物品であって、前記吸収層、前記表面層及び前記中間繊維層はそれぞれ冷感剤を含有しており、前記冷感剤の単位面積当たりの含有量が前記吸収層より前記中間繊維層で多く、かつ、前記表面層より前記中間繊維層で多い、吸収性物品。
<2> 前記冷感剤の単位面積当たりの含有量が多い順に、前記中間繊維層、前記吸収層、前記表面層である、前記<1>に記載の吸収性物品。
<3> 前記表面層の液拡散性が、前記中間繊維層及び前記吸収層の液拡散性よりも小さい、前記<1>又は<2>に記載の吸収性物品。
<4> 前記吸収性物品が、縦方向とこれに直交する幅方向とを有し、前記縦方向に沿って、着用者の***部と対向する受液領域を含む中間部と、その両端側に位置する前方部と後方部を有し、前記吸収層は、前記中間部に、坪量が周囲よりも大きい高坪量部を備える前記<1>〜<3>のいずれか1に記載の吸収性物品。
<5> 前記吸収層において、前記高坪量部の厚みH1に対する、該高坪量部以外の部分の厚みH2の比H2/H1は、1/5以上、4/5以下である、前記<4>に記載の吸収性物品。
<6> 前記吸収層において、高坪量部の坪量M1に対する、該高坪量部以外の部分の坪量M2の比M2/M1は、1/4以上、7/8以下である、前記<4>又は<5>に記載の吸収性物品。
<7> 前記吸収層が吸収性シートの積層構造を有する、前記<1>〜<6>のいずれか1に記載の吸収性物品。
<8> 前記吸収層が吸収性シートの積層構造を有し、前記高坪量部ではその前後よりも積層数が多い、前記<4>〜<6>のいずれか1に記載の吸収性物品。
<9> 前記裏面層の非肌側面の、前記高坪量部と平面視重なる部分に、衣類固定用の粘着部が配されている前記<4>〜<8>のいずれか1に記載の吸収性物品。
<10> 前記表面層における平均繊維間距離は、前記中間繊維層における平均繊維間距離よりも大きい、前記<1>〜<9>のいずれか1に記載の吸収性物品。
<11> 前記冷感剤の単位面積当たりの含有量が、前記吸収層の非肌側面よりも肌側面で多くされている、前記<1>〜<10>のいずれか1に記載の吸収性物品
<12> 前記吸収層が、肌側面から厚み方向への連通部を有する、前記<1>〜<11>のいずれか1に記載の吸収性物品。
<13> 前記連通部が吸収層を貫通する貫通部である、前記<12>に記載の吸収性物品。
<14> 前記吸収性物品が、縦方向とこれに直交する幅方向とを有し、前記縦方向に沿って、着用者の***部と対向する受液領域を含む中間部と、その両端側に位置する前方部と後方部を有し、前記吸収層は、前記中間部に、坪量が周囲よりも大きい高坪量部を備え、該高坪量部に前記貫通部を備える、前記<13>に記載の吸収性物品。
<15> 前記冷感剤が水不溶性又は水難溶性である、前記<1>〜<14>のいずれか1に記載の吸収性物品。
<16> 前記冷感剤として乳酸メンチルを含む、前記<15>に記載の吸収性物品。
<17> 前記冷感剤としてメントールを含む、前記<16>に記載の吸収性物品。
<18> 前記メントールと乳酸メンチルの質量比が、前者/後者として、0.01以上、0.2以下である、前記<17>に記載の吸収性物品。
<19> 前記表面層の肌当接面側の両側に、該表面層より通気性が小さいサイドシートが積層されている前記<1>〜<18>のいずれか1に記載の吸収性物品。
<20> 前記吸収層の幅方向外方に延出したウイング部を備えている、前記<1>〜<19>のいずれか1に記載の吸収性物品。
<21> 生理用ナプキンである、前記<1>〜<20>のいずれか1に記載の吸収性物品。
<1> An absorbent article comprising a surface layer, a back layer, and an absorbent layer disposed between the surface layer and the back layer, and an intermediate fiber layer between the surface layer and the absorbent layer. The absorbent layer, the surface layer, and the intermediate fiber layer each contain a cooling agent, and the content of the cooling agent per unit area is greater in the intermediate fiber layer than in the absorption layer, and Absorbent articles having more intermediate fiber layers than the surface layers.
<2> The absorbent article according to <1>, which is the intermediate fiber layer, the absorbent layer, and the surface layer in descending order of content per unit area of the cooling sensation agent.
<3> The absorbent article according to <1> or <2>, wherein the liquid diffusibility of the surface layer is smaller than the liquid diffusibility of the intermediate fiber layer and the absorbent layer.
<4> The absorbent article has a longitudinal direction and a width direction orthogonal to the longitudinal direction, an intermediate part including a liquid receiving region facing the wearer's excretion part along the longitudinal direction, and both end sides thereof The said absorption layer has a high basic weight part whose basic weight is larger than the circumference | surroundings in the said intermediate part, Any one of said <1>-<3> which has a front part and rear part which are located in. Absorbent article.
<5> In the absorption layer, the ratio H2 / H1 of the thickness H2 of the portion other than the high basis weight portion to the thickness H1 of the high basis weight portion is 1/5 or more and 4/5 or less, <4>. The absorbent article as described in 4>.
<6> In the absorption layer, the ratio M2 / M1 of the basis weight M2 of the portion other than the high basis weight portion to the basis weight M1 of the high basis weight portion is not less than 1/4 and not more than 7/8. The absorbent article as described in <4> or <5>.
<7> The absorbent article according to any one of <1> to <6>, wherein the absorbent layer has a laminated structure of absorbent sheets.
<8> The absorbent article according to any one of <4> to <6>, wherein the absorbent layer has a laminated structure of absorbent sheets, and the high basis weight portion has a larger number of layers than before and after. .
<9> The <4> to <8> according to any one of <4> to <8>, wherein an adhesive portion for fixing clothes is arranged on a portion of the non-skin side surface of the back layer that overlaps the high basis weight portion in plan view. Absorbent article.
<10> The absorbent article according to any one of <1> to <9>, wherein an average interfiber distance in the surface layer is larger than an average interfiber distance in the intermediate fiber layer.
<11> The absorptivity according to any one of <1> to <10>, wherein a content per unit area of the cooling sensation agent is greater on a skin side than on a non-skin side of the absorbent layer. Article <12> The absorbent article according to any one of <1> to <11>, wherein the absorbent layer has a communication portion from the skin side surface in the thickness direction.
<13> The absorbent article according to <12>, wherein the communication part is a penetrating part that penetrates the absorbent layer.
<14> The absorbent article has a longitudinal direction and a width direction perpendicular to the longitudinal direction, an intermediate part including a liquid receiving region facing the excretion part of the wearer along the longitudinal direction, and both end sides thereof The absorbent layer includes a high basis weight part having a basis weight larger than that of the surrounding area in the intermediate part, and the high basis weight part includes the penetration part. Absorbent article according to 13>.
<15> The absorbent article according to any one of <1> to <14>, wherein the cooling sensation agent is water-insoluble or hardly water-soluble.
<16> The absorbent article according to <15>, wherein the cooling sensate includes lactyl menthyl.
<17> The absorbent article according to <16>, including menthol as the cooling agent.
<18> The absorbent article according to <17>, wherein a mass ratio of the menthol and menthol lactylate is 0.01 or more and 0.2 or less as the former / the latter.
<19> The absorbent article according to any one of <1> to <18>, wherein side sheets having a lower air permeability than the surface layer are laminated on both sides of the surface layer on the skin contact surface side.
<20> The absorbent article according to any one of the above items <1> to <19>, comprising a wing portion extending outward in the width direction of the absorbent layer.
<21> The absorbent article according to any one of <1> to <20>, which is a sanitary napkin.

以下、本発明を実施例に基づきさらに詳細に説明するが、本発明はこれに限定されるものではない。   EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited to this.

(製造例)
図5に示す構造の生理用ナプキンを作成した。
具体的には、本体吸収性シートと中央吸収性シートを図5に示すとおりに折り畳んでなる積層構造を有する吸収層(長さ:190mm、幅:75mm)を形成し、メントールと乳酸メンチルをジプロピレングリコールに溶解した冷感剤溶液を、吸収層の本体吸収性シートの肌面側全長に亘って、メントール2.5mg(0.18g/m)、乳酸メンチル25mg(1.8g/m)となるように塗工した。得られた吸収層を気密性の容器内へ納入した状態で、室温で3週間静置した後に、中間繊維層、表面層を吸収層の肌面側に載せ、吸収層の非肌面側に裏面層を配置し、さらに裏面層の非肌面側に粘着部を形成して、生理用ナプキンを作成した。得られた生理用ナプキンを、裏面層と面するように、生理用ナプキンより面積の大きい外装材上に配置した後に3つ折り形状に畳んで、外装材が対向した面をシールし、室温で3週間静置して、製造例の生理用ナプキン試料を得た。
なお、表面層は上下層で構成され、上層側は繊維径4.4dtex、下層側は繊維径3.3dtexの芯鞘型複合繊維(芯がポリエチレンテレフタレート、鞘がポリエチレン)の繊維からなる、厚みが0.9mm、坪量が25g/mの不織布製シートを用いて作製した。中間繊維層は、繊維径2.2dtexのポリエチレン/ポリエチレンテレフタレートの複合樹脂製合成繊維からなる、厚みが0.5mm、坪量は25g/mの不織布製シートから作製した。吸収層については、本体吸収性シートと中央吸収性シートとして、特許2963647号の実施例2に準じて作成した。ただし、架橋処理パルプとしてWeyerhauser Paper社製のHigh Bulk Additive HBAを、高吸水性ポリマーとして日本触媒社製のアクアリックCAを用いた。を用いた。本体吸収性シートは190mm×75mmの大きさのもの、中央吸収性シートは90mm×35mmのものを用いた。
(Production example)
A sanitary napkin having the structure shown in FIG. 5 was prepared.
Specifically, an absorbent layer (length: 190 mm, width: 75 mm) having a laminated structure formed by folding the main body absorbent sheet and the central absorbent sheet as shown in FIG. the cooling agent solution in propylene glycol, across the skin surface the entire length of the body the absorbent sheet of the absorbent layer, menthol 2.5mg (0.18g / m 2), menthyl lactate 25mg (1.8g / m 2 ) Was applied. After the obtained absorbent layer is delivered into an airtight container and allowed to stand at room temperature for 3 weeks, the intermediate fiber layer and the surface layer are placed on the skin surface side of the absorbent layer, and on the non-skin surface side of the absorbent layer. A sanitary napkin was prepared by arranging a back layer and further forming an adhesive portion on the non-skin side of the back layer. The obtained sanitary napkin is placed on the exterior material having a larger area than the sanitary napkin so as to face the back surface layer, and then folded into a three-fold shape to seal the surface opposed to the exterior material. It left still for a week and obtained the sanitary napkin sample of a manufacture example.
The surface layer is composed of upper and lower layers, and the upper layer side is made of fibers of core-sheath type composite fibers (core is polyethylene terephthalate, sheath is polyethylene) having a fiber diameter of 4.4 dtex and the lower layer side is a fiber diameter of 3.3 dtex. Was 0.9 mm and the basis weight was 25 g / m 2 . The intermediate fiber layer was prepared from a nonwoven fabric sheet having a thickness of 0.5 mm and a basis weight of 25 g / m 2 made of a synthetic fiber made of polyethylene / polyethylene terephthalate composite resin having a fiber diameter of 2.2 dtex. About the absorption layer, it created according to Example 2 of patent 2963647 as a main body absorbent sheet and a center absorbent sheet. However, High Bulk Additive HBA manufactured by Weyerhauser Paper was used as the crosslinked pulp, and Aqualic CA manufactured by Nippon Shokubai Co., Ltd. was used as the superabsorbent polymer. Was used. The main body absorbent sheet had a size of 190 mm × 75 mm, and the central absorbent sheet had a size of 90 mm × 35 mm.

(比較製造例)
冷感剤を含有する市販品相当の生理用ナプキンを比較製造例とした。
具体的には、下記構成の中間繊維層に、中間繊維層の肌面側の全長に亘って、製造例と同じ冷感剤を同量塗工した。その後すぐに、中間繊維層の肌面側に下記構成の表面層を配置し、中間繊維層の非肌面側に下記構成の、吸収層及び裏面層を配置し、裏面層の非肌面側に粘着部を形成して、生理用ナプキンを作成した。得られた生理用ナプキンを製造例と同様に外装材に収納し、室温で3週間静置して、比較製造例の生理用ナプキンを得た。
なお、表面層は繊維径3.0dtexの芯鞘型複合繊維(芯がポリエチレンテレフタレート、鞘がポリエチレン)の繊維からなる、厚みが1.1mm、坪量が25g/mの不織布製シートとした。中間繊維層は、繊維径3.0dtexのポリエチレン/ポリエチレンテレフタレートの複合樹脂製合成繊維からなる、厚みが1.6mm、坪量は30g/mの不織布製シートとした。吸収層は、吸水性ポリマー:パルプ繊維:芯鞘型複合繊維(芯がポリエチレンテレフタレート、鞘がポリエチレン)をそれぞれ質量比10:25:65で均一混合した厚みが2mm、坪量200g/mの積繊体からなるものとした。
(Comparative production example)
A sanitary napkin equivalent to a commercially available product containing a cooling sensation agent was used as a comparative production example.
Specifically, the same amount of the same cooling sensation agent as in the production example was applied to the intermediate fiber layer having the following configuration over the entire skin surface side of the intermediate fiber layer. Immediately thereafter, a surface layer having the following configuration is disposed on the skin surface side of the intermediate fiber layer, an absorbent layer and a back surface layer having the following configuration are disposed on the non-skin surface side of the intermediate fiber layer, and the non-skin surface side of the back surface layer. A sanitary napkin was prepared by forming an adhesive part on the surface. The obtained sanitary napkin was housed in an exterior material in the same manner as in the production example and allowed to stand at room temperature for 3 weeks to obtain a sanitary napkin of a comparative production example.
The surface layer is a nonwoven sheet made of a core-sheath composite fiber (core is polyethylene terephthalate, sheath is polyethylene) having a fiber diameter of 3.0 dtex, having a thickness of 1.1 mm and a basis weight of 25 g / m 2 . . The intermediate fiber layer was a non-woven sheet made of a composite resin synthetic fiber made of polyethylene / polyethylene terephthalate having a fiber diameter of 3.0 dtex and having a thickness of 1.6 mm and a basis weight of 30 g / m 2 . The absorbent layer has a thickness of 2 mm and a basis weight of 200 g / m 2 in which water-absorbing polymer: pulp fiber: core-sheath composite fiber (core is polyethylene terephthalate, sheath is polyethylene) in a mass ratio of 10:25:65, respectively. It shall consist of a piled-up fiber.

冷感剤の含有量を、上述した(単位面積あたりの冷感剤量の測定方法)に記載の方法に基づき測定した。
製造例の生理用ナプキンでは、単位面積当たりの冷感剤の含有量の比率が、表面層に10%、中間繊維層に25%、本体吸収性シートに12%、中央吸収性シートに5%、裏面層に49%であった。一方、比較製造例の生理用ナプキンでは、単位面積当たりの冷感剤の含有量の比率が、表面層に19%、中間繊維層に19%、吸収層に10%、裏面層に52%であった。
The content of the cooling sensation agent was measured based on the method described above (Method for measuring the amount of cooling sensation agent per unit area).
In the sanitary napkin of the production example, the ratio of the content of the cooling sensation agent per unit area is 10% for the surface layer, 25% for the intermediate fiber layer, 12% for the main body absorbent sheet, and 5% for the central absorbent sheet. The back layer was 49%. On the other hand, in the sanitary napkin of the comparative production example, the content ratio of the cooling sensation agent per unit area was 19% for the front surface layer, 19% for the intermediate fiber layer, 10% for the absorption layer, and 52% for the back surface layer. there were.

上記製造例及び比較製造例の生理用ナプキンについて、10名の女性に装着テストを行った。結果、製造例の生理用ナプキンでは、比較製造例の生理用ナプキンと比較して、冷感の強さがちょうど良いという評価が多く、また、冷感が十分な時間維持されるものであった。   About the sanitary napkin of the said manufacture example and a comparative manufacture example, the mounting | wearing test was done to ten women. As a result, in the sanitary napkin of the production example, there were many evaluations that the cooling sensation was just as good as the sanitary napkin of the comparative production example, and the sensation of cooling was maintained for a sufficient time. .

本発明をその実施形態及び実施例とともに説明したが、我々は特に指定しない限り我々の発明を説明のどの細部においても限定しようとするものではなく、添付の請求の範囲に示した発明の精神と範囲に反することなく幅広く解釈されるべきであると考える。   While the invention has been described in conjunction with embodiments and examples thereof, we do not intend to limit our invention in any detail of the description unless otherwise specified, and are within the spirit and scope of the invention as set forth in the appended claims. I think it should be interpreted broadly without violating the scope.

1 表面層
2 裏面層
3 吸収層
4 中間繊維層
5 サイドシート
6 ウイング部
8 連通部
10 生理用ナプキン
DESCRIPTION OF SYMBOLS 1 Surface layer 2 Back surface layer 3 Absorption layer 4 Intermediate fiber layer 5 Side sheet 6 Wing part 8 Communication part 10 Sanitary napkin

Claims (7)

表面層、裏面層、及び前記表面層と前記裏面層との間に配された吸収層を備え、前記表面層と前記吸収層との間に中間繊維層を備える吸収性物品であって、
前記吸収層、前記表面層及び前記中間繊維層はそれぞれ冷感剤を含有しており、
前記冷感剤の単位面積当たりの含有量が前記吸収層より前記中間繊維層で多く、かつ、前記表面層より前記中間繊維層で多い、吸収性物品。
An absorbent article comprising a surface layer, a back layer, and an absorbent layer disposed between the surface layer and the back layer, and comprising an intermediate fiber layer between the surface layer and the absorbent layer;
The absorbent layer, the surface layer and the intermediate fiber layer each contain a cooling agent,
Absorbent articles in which the content per unit area of the cooling sensation agent is greater in the intermediate fiber layer than in the absorbent layer and greater in the intermediate fiber layer than in the surface layer.
前記冷感剤の単位面積当たりの含有量が多い順に、前記中間繊維層、前記吸収層、前記表面層である、請求項1に記載の吸収性物品 The absorbent article of Claim 1 which is the said intermediate | middle fiber layer, the said absorption layer, and the said surface layer in order with much content per unit area of the said cooling sensation agent . 前記吸収性物品が、縦方向とこれに直交する幅方向とを有し、前記縦方向に沿って、着用者の***部と対向する受液領域を含む中間部と、その両端側に位置する前方部と後方部を有し、前記吸収層は、前記中間部に、坪量が周囲よりも大きい高坪量部を備える請求項1又は2に記載の吸収性物品 The absorbent article has a longitudinal direction and a width direction orthogonal to the longitudinal direction, and is located on both ends of the intermediate part including a liquid receiving region facing the wearer's excretion part along the longitudinal direction. The absorptive article according to claim 1 or 2 which has a front part and a back part, and said absorption layer equips said intermediate part with a high basic weight part whose basic weight is larger than the circumference . 前記吸収層が吸収性シートの積層構造を有する、請求項1〜のいずれか1項に記載の吸収性物品。 The absorbent article according to any one of claims 1 to 3 , wherein the absorbent layer has a laminated structure of absorbent sheets. 前記吸収層が吸収性シートの積層構造を有し、前記高坪量部ではその前後よりも積層数が多い、請求項に記載の吸収性物品 The absorptive article according to claim 3 in which said absorption layer has a lamination structure of an absorptive sheet, and there are many laminations in said high basic weight part rather than the back and front . 前記吸収層が、肌側面から厚み方向への連通部を有する、請求項1〜のいずれか1項に記載の吸収性物品。 The absorptive article according to any one of claims 1 to 5 in which said absorption layer has a communicating part from a skin side to a thickness direction. 前記連通部が吸収層を貫通する貫通部である、請求項に記載の吸収性物品 The absorptive article according to claim 6 whose above-mentioned communicating part is a penetration part which penetrates an absorption layer .
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2020179889A1 (en) * 2019-03-06 2020-09-10

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010131040A (en) * 2008-12-02 2010-06-17 Kao Corp Absorbent article
JP2015012918A (en) * 2013-07-03 2015-01-22 花王株式会社 Absorbent article
JP2016013154A (en) * 2014-06-30 2016-01-28 ユニ・チャーム株式会社 Absorbent article
JP2016152871A (en) * 2015-02-20 2016-08-25 花王株式会社 Absorbent article
JP2016220983A (en) * 2015-05-29 2016-12-28 ユニ・チャーム株式会社 Absorbent article
WO2017002503A1 (en) * 2015-06-30 2017-01-05 ユニ・チャーム株式会社 Absorbent article

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE327778T1 (en) * 2001-04-17 2006-06-15 Procter & Gamble REFRESHING COMPOSITIONS
EP1250941A1 (en) * 2001-04-17 2002-10-23 The Procter & Gamble Company Articles comprising a mint odor-free cooling agent
WO2005020865A1 (en) * 2003-08-29 2005-03-10 Daio Paper Corporation Absorbent article and method of producing the same
JP5465910B2 (en) * 2009-03-31 2014-04-09 ユニ・チャーム株式会社 Absorbent articles
JP5815916B2 (en) * 2009-03-31 2015-11-17 ユニ・チャーム株式会社 Absorbent articles
EP2535061B1 (en) * 2011-06-16 2014-07-16 The Procter and Gamble Company Cooling composition and absorbent article comprising the same
JP5713951B2 (en) * 2012-04-02 2015-05-07 ユニ・チャーム株式会社 Absorbent articles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010131040A (en) * 2008-12-02 2010-06-17 Kao Corp Absorbent article
JP2015012918A (en) * 2013-07-03 2015-01-22 花王株式会社 Absorbent article
JP2016013154A (en) * 2014-06-30 2016-01-28 ユニ・チャーム株式会社 Absorbent article
JP2016152871A (en) * 2015-02-20 2016-08-25 花王株式会社 Absorbent article
JP2016220983A (en) * 2015-05-29 2016-12-28 ユニ・チャーム株式会社 Absorbent article
WO2017002503A1 (en) * 2015-06-30 2017-01-05 ユニ・チャーム株式会社 Absorbent article

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2020179889A1 (en) * 2019-03-06 2020-09-10
KR20210134632A (en) * 2019-03-06 2021-11-10 유니챰 가부시키가이샤 absorbent article
JP7246401B2 (en) 2019-03-06 2023-03-27 ユニ・チャーム株式会社 absorbent article

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