JP2009077927A - Absorbent article - Google Patents

Absorbent article Download PDF

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Publication number
JP2009077927A
JP2009077927A JP2007249453A JP2007249453A JP2009077927A JP 2009077927 A JP2009077927 A JP 2009077927A JP 2007249453 A JP2007249453 A JP 2007249453A JP 2007249453 A JP2007249453 A JP 2007249453A JP 2009077927 A JP2009077927 A JP 2009077927A
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Japan
Prior art keywords
compression groove
pair
width direction
groove portions
sanitary napkin
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JP2007249453A
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JP5139017B2 (en
Inventor
Kenichiro Kuroda
賢一郎 黒田
Yuki Noda
祐樹 野田
Kumiko Nishikawa
久美子 西川
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Unicharm Corp
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Unicharm Corp
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Priority to JP2007249453A priority Critical patent/JP5139017B2/en
Priority to EA201000372A priority patent/EA017355B1/en
Priority to UAA201005001A priority patent/UA98810C2/en
Priority to MX2010003187A priority patent/MX2010003187A/en
Priority to BRPI0815987A priority patent/BRPI0815987A2/en
Priority to PCT/JP2008/065749 priority patent/WO2009041223A1/en
Priority to TW097137263A priority patent/TW200934451A/en
Publication of JP2009077927A publication Critical patent/JP2009077927A/en
Priority to EG2010030477A priority patent/EG26175A/en
Priority to MA32769A priority patent/MA31774B1/en
Priority to CO10044593A priority patent/CO6270200A2/en
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Publication of JP5139017B2 publication Critical patent/JP5139017B2/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS 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
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47—Sanitary towels, incontinence pads or napkins
    • A61F13/475—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • A61F13/4751—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction
    • A61F13/4756—Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means the means preventing fluid flow in a transversal direction the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (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

<P>PROBLEM TO BE SOLVED: To provide an absorbent article which is excellent in fitness when it is worn, is not easily twisted even by the movement of the body or the like after it is worn and is excellent in a leakage prevention property. <P>SOLUTION: On the body abutting surface side in a vertically long sanitary napkin 1 comprising a front surface sheet 10, a back surface sheet 20 and an absorbent 30 disposed between the front surface sheet 10 and the back surface sheet 20, a back compression groove 42 is provided on a back part BP in the longitudinal direction LD of the sanitary napkin 1. The back compression groove 42 is provided with a pair of transverse compression groove parts 421 and 421 formed so as to be along the width direction WD of the absorbent article 1. The pair of transverse compression groove parts 421 and 421 are formed roughly axially symmetrically so as to be separated from each other with a center line CL as the axis of symmetry at the center in the width direction WD of the sanitary napkin 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

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

従来、生理用ナプキン等の吸収性物品には、フィット性及び漏れ防止性を向上させるべく、種々の提案がなされている。
例えば、生理用ナプキンの装着時における身体へのフィット性を向上させるために、生理用ナプキンの後方部に長手方向に延びる一対の立体溝が設けられ、該一対の立体溝は、後端部に向かうにつれてその間隔が漸次大きくなるように形成されている生理用ナプキンが提案されている（特許文献１参照）。
特許文献１記載の生理用ナプキンは、装着時には身体の形状に沿って変形し、フィット性に優れるが、装着後の身体の動きによって生理用ナプキンがよれてしまい、漏れの原因となるという問題があった。 Conventionally, various proposals have been made for absorbent articles such as sanitary napkins in order to improve fit and leakage prevention.
For example, in order to improve the fit to the body when the sanitary napkin is worn, a pair of three-dimensional grooves extending in the longitudinal direction are provided in the rear part of the sanitary napkin, and the pair of three-dimensional grooves are formed at the rear end portion. There has been proposed a sanitary napkin formed so that the distance gradually increases as it goes (see Patent Document 1).
The sanitary napkin described in Patent Document 1 is deformed along the shape of the body at the time of wearing, and is excellent in fit. However, the sanitary napkin is moved by the movement of the body after wearing and causes a leakage. there were.

また、装着後における生理用ナプキンのよれを防ぐことを目的として、生理用ナプキンの長手方向両端近傍において、生理用ナプキンの長手方向に延びる中心軸に略垂直となるように該中心軸を横断し、かつ生理用ナプキンの幅方向の長さの５０％以上を占める硬化要素が形成されたものも提案されている（特許文献２参照）。しかし、特許文献２記載の生理用ナプキンは、硬化要素が中心軸を跨いで形成されているため、装着時に身体の形状、特に臀部における溝の形状に沿いにくくフィット性が悪いという問題があった。
特開１０−２０１７８８号公報 特開１０−２２５４８０号公報 In addition, for the purpose of preventing the sanitary napkin from wobbling after wearing, the central axis is crossed so that it is substantially perpendicular to the central axis extending in the longitudinal direction of the sanitary napkin in the vicinity of both ends in the longitudinal direction of the sanitary napkin. In addition, there has been proposed one in which a hardening element occupying 50% or more of the length in the width direction of the sanitary napkin is formed (see Patent Document 2). However, the sanitary napkin described in Patent Document 2 has a problem that it is difficult to follow the shape of the body, particularly the shape of the groove in the buttocks when worn, because the curing element is formed across the central axis. .
JP 10-201788 A JP 10-225480 A

したがって、本発明は、装着時のフィット性に優れると共に、装着後の身体の動き等によってもよれにくく漏れ防止性に優れた吸収性物品を提供することを目的とする。   Accordingly, an object of the present invention is to provide an absorbent article that is excellent in fit at the time of wearing, and that is not easily affected by movement of the body after wearing, etc., and is excellent in leakage prevention.

（１）表面シートと、裏面シートと、前記表面シートと前記裏面シートとの間に配置される吸収体を備える縦長状の吸収性物品であって、該吸収性物品の長手方向における一端である後縁側に位置する後方部には後方圧縮溝が設けられ、前記後方圧縮溝は、該吸収性物品の幅方向に延び、互いに離間する一対の横圧縮溝部を有し、該一対の横圧縮溝部は、該吸収性物品を幅方向に二分し長手方向に延びる縦中心線を対称軸として略線対称に形成される吸収性物品。   (1) A vertically long absorbent article including a top sheet, a back sheet, and an absorbent body disposed between the top sheet and the back sheet, and is one end in the longitudinal direction of the absorbent article. A rear compression groove is provided in a rear portion located on the rear edge side, and the rear compression groove has a pair of lateral compression groove portions that extend in the width direction of the absorbent article and are separated from each other, and the pair of lateral compression groove portions. Is an absorbent article that is substantially symmetrical with respect to a longitudinal center line that extends in the longitudinal direction and bisects the absorbent article in the width direction.

（２）前記一対の横圧縮溝部それぞれは、略直線状に形成される（１）に記載の吸収性物品。   (2) The absorbent article according to (1), wherein each of the pair of lateral compression groove portions is formed in a substantially linear shape.

（３）前記後方圧縮溝は、前記一対の横圧縮溝部それぞれにおける前記幅方向の内方に連続して形成され、前記縦中心線を対称軸として略線対称に形成される内方圧縮溝部を有する（１）又（２）に記載の吸収性物品。   (3) The rear compression groove is an inner compression groove formed continuously inward in the width direction in each of the pair of lateral compression grooves, and is formed substantially symmetrical with respect to the longitudinal center line. The absorbent article according to (1) or (2).

（４）前記内方圧縮溝部は、前記縦中心線を挟んで形成される一対の内方圧縮溝部であり、前記一対の内方圧縮溝部それぞれにおける前記縦中心線側の端部は、該端部それぞれから延びる仮想延長線が互いに交差するように形成される（３）に記載の吸収性物品。   (4) The inner compression groove portions are a pair of inner compression groove portions formed with the vertical center line interposed therebetween, and the end portions on the vertical center line side in the pair of inner compression groove portions are the ends. The absorbent article as described in (3) formed so that the virtual extension line extended from each part may mutually cross.

（５）前記後方圧縮溝は、前記一対の横圧縮溝部それぞれにおける前記幅方向の外方に連続して形成される一対の外方圧縮溝部を有し、該一対の外方圧縮溝部それぞれは、該一対の外方圧縮溝部それぞれにおける前記幅方向外方に位置する一端が、前記一対の横圧縮溝部よりも該吸収性物品における前縁側に位置するように形成される（１）から（４）のいずれかに記載の吸収性物品。   (5) The rear compression groove has a pair of outer compression groove portions that are continuously formed outward in the width direction in the pair of lateral compression groove portions, and the pair of outer compression groove portions, One end of each of the pair of outer compression groove portions positioned outward in the width direction is formed so as to be positioned closer to the front edge side of the absorbent article than the pair of lateral compression groove portions. The absorbent article in any one of.

（６）該吸収性物品の前記長手方向における中央部に形成される一対の中央圧縮溝を更に備える（１）から（５）のいずれかに記載の吸収性物品。   (6) The absorbent article according to any one of (1) to (5), further including a pair of central compressed grooves formed at a central portion in the longitudinal direction of the absorbent article.

本発明は、装着時のフィット性に優れると共に、装着後の身体の動き等によってもよれにくく漏れ防止性に優れた吸収性物品を提供することができる。   INDUSTRIAL APPLICABILITY The present invention can provide an absorbent article that is excellent in fit at the time of wearing, and that is not easily affected by body movements after wearing and the like and has excellent leakage prevention properties.

以下、本発明の好適な実施形態について図を用いて説明する。
図１は、本発明の好適な第１実施形態における生理用ナプキン１の平面図である。図２は、図１におけるＡ−Ａ断面図である。図３は、本発明の好適な第２実施形態における生理用ナプキン１の平面図である。図４は、本発明の好適な第３実施形態における生理用ナプキン１の平面図である。図５は、本発明の好適な第４実施形態における生理用ナプキン１の平面図である。図６は、本発明の好適な第５実施形態における生理用ナプキン１の平面図である。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of a sanitary napkin 1 according to a preferred first embodiment of the present invention. 2 is a cross-sectional view taken along line AA in FIG. FIG. 3 is a plan view of a sanitary napkin 1 according to a preferred second embodiment of the present invention. FIG. 4 is a plan view of a sanitary napkin 1 according to a preferred third embodiment of the present invention. FIG. 5 is a plan view of a sanitary napkin 1 according to a preferred fourth embodiment of the present invention. FIG. 6 is a plan view of a sanitary napkin 1 according to a preferred fifth embodiment of the present invention.

１．第１実施形態
１−１．概要
図１に示すように、吸収性物品の例として、生理用ナプキン１について説明する。生理用ナプキン１は、液透過性の表面シート１０と、液不透過性の裏面シート２０と、これら両者間に配置される液保持性の吸収体３０と、を備え、縦長状に形成されている。 1. First embodiment 1-1. Outline As shown in FIG. 1, a sanitary napkin 1 will be described as an example of an absorbent article. The sanitary napkin 1 includes a liquid-permeable top sheet 10, a liquid-impermeable back sheet 20, and a liquid-retaining absorbent 30 disposed between the two, and is formed in a vertically long shape. Yes.

ここで、生理用ナプキン１の長手方向ＬＤにおける、前方縁３からウイング２、２の前方縁３側の根本部分までを前方部ＦＰ、ウイング２、２の前方縁３側の根本部分から後方縁４側の根本までを中央部ＣＰ、ウイング２、２の後方縁４側の根本部分から後方縁４までを後方部ＢＰとする。   Here, in the longitudinal direction LD of the sanitary napkin 1, from the front edge 3 to the root part on the front edge 3 side of the wings 2 and 2, from the root part on the front edge 3 side of the front part FP and wings 2 and 2, the rear edge The root part on the 4th side is the central part CP, and the part from the root part on the rear edge 4 side of the wings 2 and 2 to the rear edge 4 is the rear part BP.

表面シート１０は、吸収体３０の全面を覆うように配置され、吸収体３０に当接する面とは反対側の面に身体が当接する。また、表面シート１０における身体当接面側であって、吸収体３０の幅方向ＷＤ両側部に重なるように、長手方向ＬＤに沿ってサイドシート１１がそれぞれ配置される。表面シート１０と一対のサイドシート１１、１１とは、それぞれ吸収体３０の幅方向ＷＤ両側に対応する部分について、長手方向ＬＤに沿ってホットメルト接着剤で互いに接合される。一対のサイドシート１１、１１それぞれは、吸収体３０の両側に対応する部分からその一部が幅方向ＷＤ外方に延出し、裏面シート２０と共にウイング２、２を形成する。   The top sheet 10 is disposed so as to cover the entire surface of the absorber 30, and the body abuts on the surface opposite to the surface abutting on the absorber 30. In addition, the side sheets 11 are respectively arranged along the longitudinal direction LD so as to overlap the both sides of the absorbent body 30 in the width direction WD on the body contact surface side of the top sheet 10. The surface sheet 10 and the pair of side sheets 11 and 11 are joined to each other with a hot-melt adhesive along the longitudinal direction LD at portions corresponding to both sides of the absorbent body 30 in the width direction WD. Each of the pair of side sheets 11, 11 partially extends from the portions corresponding to both sides of the absorber 30 outward in the width direction WD, and forms the wings 2, 2 together with the back sheet 20.

裏面シート２０は、吸収体３０における表面シート１０とは反対側の面において、吸収体３０の全面を覆うように配置され、着衣である下着に当接する。裏面シート２０は、吸収体３０における下着当接面側全域を覆うと共に、吸収体３０の両側に対応する部分からその一部が幅方向ＷＤ外方に延出して一対のサイドシート１１、１１と共に一対のウイング２、２を形成する。なお、ウイング２は、サイドシート１１と裏面シート２０がそれぞれホットメルト接着剤で接合されることにより、形成される。   The back sheet 20 is disposed on the surface of the absorbent body 30 opposite to the top sheet 10 so as to cover the entire surface of the absorbent body 30, and comes into contact with an undergarment that is clothing. The back sheet 20 covers the entire area on the underwear contact surface side of the absorbent body 30, and a part of the back sheet 20 extends outward in the width direction WD from the portions corresponding to both sides of the absorbent body 30 together with the pair of side sheets 11, 11. A pair of wings 2 and 2 are formed. The wing 2 is formed by joining the side sheet 11 and the back sheet 20 with a hot melt adhesive.

第１実施形態においては、一対のウイング２、２は、それぞれ生理用ナプキン１の中央部ＣＰにおいて、幅方向ＷＤ外方に延出するように形成される。   In the first embodiment, the pair of wings 2 and 2 are formed so as to extend outward in the width direction WD at the central portion CP of the sanitary napkin 1, respectively.

裏面シート２０及び一対のウイング２、２それぞれの下着当接面側には、それぞれ粘着材が塗布されたズレ止め部及びウイング側ズレ止め部（いずれも図示せず）が形成される。   On the back contact surface side of each of the back sheet 20 and the pair of wings 2 and 2, there are formed a shift stopper and a wing shift stopper (both not shown) each coated with an adhesive material.

１−２．圧縮溝
図１に示すように、生理用ナプキン１の表面シート１０が配置される側には、中央圧縮溝４１及び後方圧縮溝４２が形成される。中央圧縮溝４１は、生理用ナプキン１の中央部ＣＰに形成される。後方圧縮溝４２は、生理用ナプキン１の後方部ＢＰに形成される。第１実施形態においては、中央圧縮溝４１及び後方圧縮溝４２は、縦中心線ＣＬを対称軸として略線対称にそれぞれ一対ずつ設けられている。 1-2. Compressed groove As shown in FIG. 1, a central compressed groove 41 and a rear compressed groove 42 are formed on the side of the sanitary napkin 1 on which the topsheet 10 is disposed. The central compression groove 41 is formed in the central portion CP of the sanitary napkin 1. The rear compression groove 42 is formed in the rear portion BP of the sanitary napkin 1. In the first embodiment, a pair of the central compression groove 41 and the rear compression groove 42 are provided approximately in line symmetry with the longitudinal center line CL as an axis of symmetry.

図１に示すように、後方圧縮溝４２は、後方部ＢＰにおいて、生理用ナプキン１の幅方向ＷＤに延びるように一対形成される。一対の後方圧縮溝４２、４２は、生理用ナプキン１の幅方向ＷＤに延び、互いに離間して形成される横圧縮溝部４２１、４２１をそれぞれ有する。本実施形態においては、横圧縮溝部４２１、４２１は、後方圧縮溝４２、４２の全体を構成する。   As shown in FIG. 1, a pair of rear compression grooves 42 are formed in the rear portion BP so as to extend in the width direction WD of the sanitary napkin 1. The pair of rear compression grooves 42, 42 have lateral compression groove portions 421, 421 that extend in the width direction WD of the sanitary napkin 1 and are formed apart from each other. In the present embodiment, the lateral compression groove portions 421 and 421 constitute the entire rear compression grooves 42 and 42.

横圧縮溝部４２１、４２１は、生理用ナプキン１を幅方向ＷＤに二分し、長手方向ＬＤに延びる縦中心線ＣＬを対称軸として、略線対称に形成される。また、横圧縮溝部４２１、４２１は、縦中心線ＣＬを中心に互いに離間して形成される。つまり、生理用ナプキン１の幅方向ＷＤ中央には、横圧縮溝部４２１、４２１は形成されない。また、一対の横圧縮溝部４２１、４２１は、その生理用ナプキン１の幅方向ＷＤ外方側に位置する端部は、サイドシート１１が配置される位置よりも、幅方向ＷＤ内方に位置するように形成される。   The lateral compression groove portions 421 and 421 are formed in substantially line symmetry with the sanitary napkin 1 divided into two in the width direction WD and the longitudinal center line CL extending in the longitudinal direction LD as the symmetry axis. Further, the lateral compression groove portions 421 and 421 are formed to be separated from each other about the longitudinal center line CL. That is, the lateral compression groove portions 421 and 421 are not formed in the center of the sanitary napkin 1 in the width direction WD. Moreover, as for a pair of horizontal compression groove part 421,421, the edge part located in the width direction WD outer side of the sanitary napkin 1 is located inside width direction WD rather than the position where the side seat | sheet 11 is arrange | positioned. Formed as follows.

一対の横圧縮溝部４２１、４２１それぞれは、一対の横圧縮溝部４２１、４２１と、生理用ナプキン１の幅方向ＷＤに延びる直線とのなす角度が０から２０度の範囲内となるように形成されることが好ましい。横圧縮溝部４２１が上記の角度の範囲内となるように形成されることにより、生理用ナプキン１の後方部ＢＰが幅方向ＷＤ外方側からかけられる力に対する剛性を維持することができる。横圧縮溝部４２１が、上記の角度の範囲外となるように形成される場合には、後方部ＢＰが幅方向ＷＤ外方側からかけられる力に対する剛性を十分に維持することができなくなる。   Each of the pair of lateral compression groove portions 421 and 421 is formed such that an angle formed between the pair of lateral compression groove portions 421 and 421 and a straight line extending in the width direction WD of the sanitary napkin 1 is within a range of 0 to 20 degrees. It is preferable. By forming the lateral compression groove 421 so as to be within the above range of angles, the rigidity against the force applied to the rear portion BP of the sanitary napkin 1 from the outer side in the width direction WD can be maintained. When the lateral compression groove 421 is formed so as to be out of the above angle range, the rear portion BP cannot sufficiently maintain rigidity against a force applied from the outer side in the width direction WD.

一対の横圧縮溝部４２１、４２１は、それぞれ略直線状に形成される。また、第１実施形態においては、一対の横圧縮溝部４２１、４２１は、一対の横圧縮溝部４２１、４２１それぞれと、生理用ナプキン１の幅方向ＷＤに延びる直線とのなす角度が、０度となるように形成される。   The pair of lateral compression groove portions 421 and 421 are each formed in a substantially linear shape. In the first embodiment, the pair of lateral compression groove portions 421 and 421 has an angle of 0 degree between the pair of lateral compression groove portions 421 and 421 and a straight line extending in the width direction WD of the sanitary napkin 1. Formed to be.

横圧縮溝部４２１は、後述の位置Ｚから後方縁４側に向かって、好ましくは、８０ｍｍから３００ｍｍの離れた範囲内となるように形成される。詳しくは、横圧縮溝部４２１は、横圧縮溝部４２１の前方縁３側が位置Ｚから後方縁４側に８０ｍｍ離れた位置から、横圧縮溝部４２１の後方縁４側端部が位置Ｚから３００ｍｍ離れた位置の範囲内になるように形成される。本実施形態においては、横圧縮溝部４２１は、位置Ｚから横圧縮溝部４２１の後方縁４側端部までの距離が、１３０ｍｍの位置となるように形成される。位置Ｚから横圧縮溝部４２１の前方縁３側端部までの距離が８０ｍｍより短い場合には、臀部の溝に対応する箇所に横圧縮溝部４２１が配置されないおそれがあり、生理用ナプキン１の後方部ＢＰにおいて、装着時に圧力がかかりやすい箇所でヨレが生じる可能性がある。また、位置Ｚから横圧縮溝部４２１の後方縁４側端部までの距離が３００ｍｍよりも離れた場合にも、横圧縮溝部４２１が臀部の溝よりも身体の後ろ方向に配置されるおそれがあり、最も動きのある臀部の溝に当接された箇所においてヨレが生じる可能性がある。   The lateral compression groove 421 is preferably formed so as to be within a range of 80 mm to 300 mm away from the position Z described later toward the rear edge 4 side. Specifically, the lateral compression groove portion 421 has a front edge 3 side of the lateral compression groove portion 421 that is 80 mm away from the position Z to the rear edge 4 side, and a rear edge 4 side end portion of the lateral compression groove portion 421 is 300 mm away from the position Z. It is formed so as to be within the range of the position. In the present embodiment, the lateral compression groove 421 is formed such that the distance from the position Z to the rear edge 4 side end of the lateral compression groove 421 is a position of 130 mm. When the distance from the position Z to the front edge 3 side end portion of the lateral compression groove portion 421 is shorter than 80 mm, the lateral compression groove portion 421 may not be disposed at a position corresponding to the groove of the buttocks, and the rear side of the sanitary napkin 1 In the part BP, there is a possibility that a twist will occur at a place where pressure is easily applied during mounting. In addition, even when the distance from the position Z to the rear edge 4 side end of the lateral compression groove 421 is more than 300 mm, the lateral compression groove 421 may be disposed in the rear direction of the body rather than the groove of the buttocks. There is a possibility that a twist will occur at a location where the groove moves in the most moving manner.

また、一対の横圧縮溝部４２１、４２１の幅方向ＷＤにおける長さは、好ましくは７から４０ｍｍ、さらに好ましくは、１５から３０ｍｍである。７ｍｍより小さい場合は、十分な剛性を維持することができず、ヨレてしまう危険がある。また、４０ｍｍより大きい場合には、生理用ナプキン１の幅方向ＷＤにおけるほぼ全域にわたって剛性部分が形成されるため、生理用ナプキン１全体が厚さ方向に凸状に変形することを妨げる可能性がある。   The length of the pair of lateral compression groove portions 421 and 421 in the width direction WD is preferably 7 to 40 mm, more preferably 15 to 30 mm. If it is smaller than 7 mm, sufficient rigidity cannot be maintained, and there is a risk of twisting. In addition, when it is larger than 40 mm, a rigid portion is formed over almost the entire area in the width direction WD of the sanitary napkin 1, and therefore the sanitary napkin 1 as a whole may be prevented from being deformed in a convex shape in the thickness direction. is there.

中央圧縮溝４１は、生理用ナプキン１の中央部ＣＰにおいて、長手方向ＬＤに沿うように一対形成される。中央圧縮溝４１、４１は、曲線で形成され、生理用ナプキン１の幅方向ＷＤ内方に向かって湾曲し、弧を描くように形成される。具体的には、一対の中央圧縮溝４１、４１の長手方向ＬＤ中央において、幅方向ＷＤ間の長さが最も短くなるように形成される。一対の中央圧縮溝４１、４１は、ウイング２、２における前方縁３側の根本部分近傍から、一対のウイング２、２それぞれにおける後方縁４側の根本部分の近傍にかけて形成される。   A pair of central compression grooves 41 are formed along the longitudinal direction LD in the central portion CP of the sanitary napkin 1. The central compression grooves 41, 41 are formed in a curved line, are curved inward in the width direction WD of the sanitary napkin 1, and are formed so as to draw an arc. Specifically, it is formed so that the length between the width direction WD is the shortest at the center in the longitudinal direction LD of the pair of central compressed grooves 41, 41. The pair of central compressed grooves 41, 41 are formed from the vicinity of the root portion on the front edge 3 side in the wings 2, 2 to the vicinity of the root portion on the rear edge 4 side in each of the pair of wings 2, 2.

ここで、一対の中央圧縮溝４１、４１において、一対の中央圧縮溝４１、４１間の距離が最短の長さとなる点を幅方向ＷＤにつなぐ線と、生理用ナプキン１を幅方向ＷＤに二分するように延びる縦中心線ＣＬとの交点を位置Ｚとする。この位置Ｚは、生理用ナプキン１に排泄口が当接すると想定される位置である。   Here, in the pair of central compressed grooves 41, 41, a line connecting the point where the distance between the pair of central compressed grooves 41, 41 is the shortest length to the width direction WD, and the sanitary napkin 1 in half in the width direction WD. An intersection with the longitudinal center line CL extending in such a manner is defined as a position Z. This position Z is a position where the excretion port comes into contact with the sanitary napkin 1.

図２に示すように、一対の中央圧縮溝４１、４１及び一対の横圧縮溝部４２１、４２１は、それぞれ表面シート１０と吸収体３０とを圧縮して接合することにより形成される。また、中央圧縮溝４１、４１及び横圧縮溝部４２１、４２１は、それぞれ高い圧力で圧縮された高圧縮部４１１と、高圧縮部４１１よりも低い圧力で圧縮された低圧縮部４１２とが交互に連続的に形成されることにより形成される。中央圧縮溝４１、４１及び横圧縮溝部４２１、４２１は、表面シート１０と吸収体３０とが圧縮一体化されることにより、中央圧縮溝４１、４１及び横圧縮溝部４２１、４２１が形成されない他の領域よりも剛性が高くなる。   As shown in FIG. 2, the pair of central compression grooves 41, 41 and the pair of lateral compression groove portions 421, 421 are formed by compressing and joining the topsheet 10 and the absorbent body 30, respectively. The central compression grooves 41 and 41 and the lateral compression groove portions 421 and 421 are alternately formed by a high compression portion 411 compressed at a high pressure and a low compression portion 412 compressed at a lower pressure than the high compression portion 411. It is formed by forming continuously. The central compression grooves 41 and 41 and the lateral compression groove portions 421 and 421 are formed by compressing and integrating the top sheet 10 and the absorbent body 30 so that the central compression grooves 41 and 41 and the lateral compression groove portions 421 and 421 are not formed. Stiffer than the area.

横圧縮溝部４２１、４２１及び中央圧縮溝４１、４１が形成される部分における剛性は、０．５Ｎ／インチ以上であることが好ましい。横圧縮溝部４２１、４２１及び中央圧縮溝４１、４１が形成される部分における剛性が０．５Ｎ／インチより小さい場合には、生理用ナプキン１に対して幅方向ＷＤ内方側への力がかけられた場合に、該生理用ナプキン１の後方部ＢＰを平面状に維持することができず、使用中に生理用ナプキン１がよれる場合がある。   The rigidity in the portion where the lateral compression groove portions 421 and 421 and the central compression groove 41 and 41 are formed is preferably 0.5 N / inch or more. When the rigidity in the portion where the lateral compression groove portions 421 and 421 and the central compression groove 41 and 41 are formed is smaller than 0.5 N / inch, a force inward in the width direction WD is applied to the sanitary napkin 1. In this case, the rear part BP of the sanitary napkin 1 cannot be maintained in a flat shape, and the sanitary napkin 1 may be turned during use.

第１実施形態によれば、生理用ナプキン１は、後方部ＢＰにおいて幅方向ＷＤに沿って互いに離間した一対の後方圧縮溝４２、４２を備え、一対の後方圧縮溝４２、４２はそれぞれ横圧縮溝部４２１、４２１を有する。横圧縮溝部４２１、４２１は、幅方向ＷＤに延びるように形成されるため、幅方向ＷＤへの剛性を他の領域に比べて高くすることができる。その結果、生理用ナプキン１装着中の動作時に、臀部の肉が左右に動くことにより生理用ナプキン１にかかる力や、歩行時の足回りからかかる左右からの力に対し生理用ナプキン１の後方部ＢＰがよれにくくなり、漏れを防ぐことができる。   According to the first embodiment, the sanitary napkin 1 includes the pair of rear compression grooves 42 and 42 that are separated from each other along the width direction WD in the rear portion BP, and the pair of rear compression grooves 42 and 42 are respectively laterally compressed. Grooves 421 and 421 are provided. Since the lateral compression groove portions 421 and 421 are formed so as to extend in the width direction WD, the rigidity in the width direction WD can be increased as compared with other regions. As a result, when the sanitary napkin 1 is attached, the back of the sanitary napkin 1 against the force applied to the sanitary napkin 1 due to the movement of the meat of the buttocks to the left and right, and the force from the left and right applied from the legs during walking. The part BP becomes difficult to sway and leakage can be prevented.

さらには、一対の横圧縮溝部４２１、４２１が生理用ナプキン１の幅方向ＷＤ中央で互いに離間して形成されるため、一対の横圧縮溝部４２１、４２１間の領域が、生理用ナプキン１の肌当接面側に厚さ方向に凸状に変形することを妨げない。したがって、生理用ナプキン１の後方部ＢＰにおける幅方向ＷＤ外方部分については、変形することを抑制しつつ、生理用ナプキン１の装着時において臀裂に沿うように変形して密着させることができるので、身体と生理用ナプキン１との隙間が生じることによる漏れを防ぐことができる。   Furthermore, since the pair of lateral compression groove portions 421 and 421 are formed apart from each other at the center in the width direction WD of the sanitary napkin 1, the region between the pair of lateral compression groove portions 421 and 421 is the skin of the sanitary napkin 1. It does not prevent the contact surface from being deformed in a convex shape in the thickness direction. Therefore, the width direction WD outer portion of the rear portion BP of the sanitary napkin 1 can be deformed and closely adhered along the rupture when the sanitary napkin 1 is mounted while suppressing deformation. Therefore, it is possible to prevent leakage due to a gap between the body and the sanitary napkin 1.

また、一対の横圧縮溝部４２１、４２１は、縦中心線ＣＬを中心に互いに離間して形成される。つまり、生理用ナプキン１の幅方向ＷＤ中央には圧縮溝のような剛性要素が形成されない。このため、生理用ナプキン１の後方部ＢＰに、生理用ナプキン１の幅方向ＷＤ内方側への力が加えられた場合に、剛性要素が形成されない縦中心線ＣＬ近傍部において、内方側への力を緩衝し、後方部ＢＰ全体が変形することを防止することができる。   Further, the pair of lateral compression groove portions 421 and 421 are formed to be separated from each other about the longitudinal center line CL. That is, a rigid element such as a compression groove is not formed in the center of the sanitary napkin 1 in the width direction WD. For this reason, when a force inward in the width direction WD of the sanitary napkin 1 is applied to the rear portion BP of the sanitary napkin 1, in the vicinity of the longitudinal center line CL where no rigid element is formed, the inner side It is possible to prevent the entire rear part BP from being deformed.

また、一対の横圧縮溝部４２１、４２１が離間して形成されるため、生理用ナプキン１を装着して歩行する際に、足の動きにより該生理用ナプキン１の幅方向ＷＤ内方へ向けて異なる力のかかり方となった場合でも、横圧縮溝部４２１、４２１がそれぞれ独立してその足の動きに応じて動くことができる。このため、生理用ナプキン１の装着感を向上させることができる。   Further, since the pair of lateral compression groove portions 421 and 421 are formed apart from each other, when walking with the sanitary napkin 1 attached, the sanitary napkin 1 is moved inward in the width direction WD by the movement of the foot. Even when different forces are applied, the lateral compression groove portions 421 and 421 can move independently according to the movement of their feet. For this reason, the wearing feeling of the sanitary napkin 1 can be improved.

２．他の実施形態
図３から図６を用いて他の実施形態について説明する。第２実施形態及び第３実施形態は、後方圧縮溝４２の形状において第１実施形態と異なる。第４実施形態は、後方圧縮溝及び４２中央圧縮溝４１の形状において第１実施形態と異なる。第５実施形態は、後方圧縮溝４２、中央圧縮溝４１、吸収体３０及び生理用ナプキン１の形状において第１実施形態と異なる。なお、以下の実施形態においては、第１実施形態と異なる点を中心に説明し、第１実施形態と同様の部分は同一の符号を付している。 2. Other Embodiments Other embodiments will be described with reference to FIGS. The second embodiment and the third embodiment differ from the first embodiment in the shape of the rear compression groove 42. The fourth embodiment differs from the first embodiment in the shapes of the rear compression groove and the 42 central compression groove 41. The fifth embodiment differs from the first embodiment in the shapes of the rear compression groove 42, the central compression groove 41, the absorbent body 30, and the sanitary napkin 1. In the following embodiments, differences from the first embodiment will be mainly described, and the same parts as those in the first embodiment are denoted by the same reference numerals.

２−１．第２実施形態
図３に示すように、第２実施形態の生理用ナプキン１は、一対の後方圧縮溝４２、４２が、横圧縮溝部４２１、４２１それぞれの幅方向ＷＤ内方に連続して形成される内方圧縮溝部４２２、４２２を有する点で、第１実施形態と異なる。 2-1. Second Embodiment As shown in FIG. 3, the sanitary napkin 1 of the second embodiment has a pair of rear compression grooves 42, 42 formed continuously inward in the width direction WD of each of the lateral compression groove portions 421, 421. The first embodiment is different from the first embodiment in that the inner compression groove portions 422 and 422 are provided.

第２実施形態においては、横圧縮溝部４２１は、生理用ナプキン１の幅方向ＷＤに延びるなだらかな曲線で形成される。また、横圧縮溝部４２１は、横圧縮溝部４２１と、生理用ナプキン１の幅方向ＷＤに延びる直線とのなす角度が５度となるように形成される。言い換えると、横圧縮溝部４２１における縦中心線ＣＬ側から延びる仮想延長線Ｖ２、Ｖ２と縦中心線ＣＬとのなす角度が８５度となるように形成される。 In the second embodiment, the lateral compression groove 421 is formed by a gentle curve extending in the width direction WD of the sanitary napkin 1. Further, the lateral compression groove 421 is formed such that an angle formed between the lateral compression groove 421 and a straight line extending in the width direction WD of the sanitary napkin 1 is 5 degrees. In other words, the horizontal compression groove portion 421 is formed so that the angle formed between the virtual extension lines V 2 and V 2 extending from the vertical center line CL side and the vertical center line CL is 85 degrees.

内方圧縮溝部４２２は、縦中心線ＣＬを挟んで形成される一対の内方圧縮溝部４２２、４２２であり、一対の内方圧縮溝部４２２、４２２それぞれにおける縦中心線ＣＫ側の端部は、該端部それぞれから延びる仮想延長線Ｖ１、Ｖ１が互いに交差するように形成される。詳細には、一対の内方圧縮溝部４２２、４２２は、一対の横圧縮溝部４２１、４２１それぞれにおける幅方向ＷＤ内方側の端部から、前方縁３側に向けて長手方向ＬＤに延びるように形成される。また、一対の内方圧縮溝部４２２は、前方縁３側に向けて互いの間隔が徐々に狭まるように形成される。さらに、内方圧縮溝部４２２、４２２それぞれにおける縦中心線ＣＬ側、すなわち前方縁３側に位置する一端部から前方縁３側に向けて延びる仮想延長線Ｖ１、Ｖ１それぞれは、互いに交差するように形成される。そして、後方圧縮溝４２は、全体として曲線で形成される。 The inner compression groove portions 422 are a pair of inner compression groove portions 422 and 422 formed across the longitudinal center line CL, and the end portions on the longitudinal center line CK side in each of the pair of inner compression groove portions 422 and 422 are Virtual extension lines V 1 and V 1 extending from the ends are formed so as to intersect each other. Specifically, the pair of inner compression groove portions 422 and 422 extend in the longitudinal direction LD from the end portions on the inner side in the width direction WD in the pair of lateral compression groove portions 421 and 421 to the front edge 3 side. It is formed. Further, the pair of inner compression groove portions 422 are formed so that the distance between the pair of inner compression groove portions 422 gradually decreases toward the front edge 3 side. Further, the virtual extension lines V 1 and V 1 extending from one end located on the longitudinal center line CL side, that is, the front edge 3 side, to the front edge 3 side in each of the inner compression groove portions 422 and 422 intersect each other. Formed as follows. And the back compression groove 42 is formed in a curve as a whole.

位置Ｚから、仮想延長線Ｖ１、Ｖ１の交点Ｐまでの距離は、好ましくは３０から３００ｍｍである。第２実施形態においては、位置Ｚから交点Ｐまでの距離は、例えば６５ｍｍである。位置Ｚから交点Ｐまでの距離が３０ｍｍより小さい場合には、後方圧縮溝４２、４２が互いに離間していることにより、生理用ナプキン１の幅方向ＷＤ中央に形成される凸型の変形部分が、生理用ナプキン１の装着時に臀裂の位置に対応しなくなるおそれがある。また、位置Ｚから交点Ｐまでの距離が３００ｍｍより大きい場合には、生理用ナプキン１の装着時に上述の変形部分が臀裂よりも後方に位置するようになるおそれがある。 The distance from the position Z to the intersection P of the virtual extension lines V 1 and V 1 is preferably 30 to 300 mm. In the second embodiment, the distance from the position Z to the intersection P is, for example, 65 mm. When the distance from the position Z to the intersection point P is smaller than 30 mm, the rear compression grooves 42 and 42 are separated from each other, so that a convex deformation portion formed at the center in the width direction WD of the sanitary napkin 1 is formed. The sanitary napkin 1 may not correspond to the position of the burst when the sanitary napkin 1 is attached. Further, when the distance from the position Z to the intersection point P is larger than 300 mm, the deformed portion may be located behind the rupture when the sanitary napkin 1 is attached.

第２実施形態によれば、第１実施形態と同様の効果を奏する他、生理用ナプキン１は、前方縁３側に向けて仮想延長線Ｖ１、Ｖ１が交わるように長手方向ＬＤに延びる内方圧縮溝部４２２、４２２が形成されることにより、生理用ナプキン１の幅方向ＷＤ中央が装着時に身体側に凸となるように変形することを促す。そして、生理用ナプキン１の後方部ＢＰがよれることを防止することができ、同時に生理用ナプキン１が身体に沿うように変形して漏れを防ぐことができる。 According to the second embodiment, in addition to the same effects as the first embodiment, the sanitary napkin 1 extends in the longitudinal direction LD so that the virtual extension lines V 1 and V 1 intersect toward the front edge 3 side. By forming the inner compression groove portions 422 and 422, the sanitary napkin 1 is urged to be deformed so that the center in the width direction WD becomes convex toward the body side when worn. And it can prevent that the back part BP of the sanitary napkin 1 is twisted, and at the same time, the sanitary napkin 1 can be deformed along the body to prevent leakage.

２−２．第３実施形態
図４に示すように、第３実施形態について説明する。第３実施形態における生理用ナプキン１は、一対の後方圧縮溝４２、４２が、一対の横圧縮溝部４２１、４２１それぞれにおける幅方向ＷＤ外方側の端部に連続して形成される一対の外方圧縮溝部４２３、４２３を有する他は、第２実施形態と同様の構成である。 2-2. Third Embodiment As shown in FIG. 4, a third embodiment will be described. In the sanitary napkin 1 according to the third embodiment, a pair of rear compression grooves 42 and 42 are formed in a pair of outer compression grooves 421, 421 that are continuously formed at the ends on the outer side in the width direction WD. Except having the direction compression groove parts 423 and 423, it is the structure similar to 2nd Embodiment.

第３実施形態における後方圧縮溝４２、４２は、それぞれ、横圧縮溝部４２１、４２１と、横圧縮溝部４２１、４２１の幅方向ＷＤ内方に位置する端部から連続して形成される内方圧縮溝部４２２、４２２と、横圧縮溝部４２１、４２１の幅方向ＷＤ外方に位置する端部から連続して形成される外方圧縮溝部４２３、４２３とを有する。   The rear compression grooves 42 and 42 in the third embodiment are respectively inward compression formed continuously from the lateral compression groove portions 421 and 421 and the end portions of the lateral compression groove portions 421 and 421 located inward in the width direction WD. It has the groove parts 422 and 422 and the outer compression groove parts 423 and 423 continuously formed from the edge part located in the width direction WD outer side of the horizontal compression groove parts 421 and 421.

外方圧縮溝部４２３、４２３は、横圧縮溝部４２１、４２１それぞれにおける幅方向ＷＤ外方に位置する端部から連続して形成される。また、外方圧縮溝部４２３、４２３それぞれは、外方圧縮溝部４２３、４２３それぞれにおける幅方向ＷＤ外方に位置する一端が、横圧縮溝部４２１、４２１よりも、前方縁３側に位置するように形成される。
詳細には、外方圧縮溝部４２３、４２３は、横圧縮溝部４２１、４２１それぞれの幅方向ＷＤ外方に位置する端部に連続するように形成され、生理用ナプキン１の幅方向ＷＤ外方側にむけて凸となるような曲線で形成される。そして、外方圧縮溝部４２３、４２３における横圧縮溝部４２１、４２１側とは反対側の端部が、横圧縮溝部４２１、４２１が形成された位置よりも長手方向ＬＤに前方縁３側に形成される。 The outer compression groove portions 423 and 423 are formed continuously from the end portions of the lateral compression groove portions 421 and 421 that are located outward in the width direction WD. Further, each of the outer compression groove portions 423 and 423 is arranged such that one end of each of the outer compression groove portions 423 and 423 located outside the width direction WD is located closer to the front edge 3 than the lateral compression groove portions 421 and 421. It is formed.
Specifically, the outer compression groove portions 423 and 423 are formed so as to be continuous with the end portions of the lateral compression groove portions 421 and 421 that are located outward in the width direction WD, and the width direction WD outer side of the sanitary napkin 1. It is formed with a curve that becomes convex toward the surface. The ends of the outer compression groove portions 423 and 423 opposite to the lateral compression groove portions 421 and 421 are formed on the front edge 3 side in the longitudinal direction LD from the position where the lateral compression groove portions 421 and 421 are formed. The

第３実施形態によれば、第２実施形態と同様の効果を奏する他、生理用ナプキン１の装着時において、後方縁４側に横圧縮溝部４２１、内方圧縮溝部４２２、外方圧縮溝部４２３で囲まれた領域が形成されるので、生理用ナプキン１に対して幅方向ＷＤ内方への力がかけられた場合でも、囲まれた領域が変形されないように維持することができる。したがって、後方部ＢＰが幅方向ＷＤ内方側にかけられる力に対して変形することを抑制することができる。   According to the third embodiment, in addition to the same effects as those of the second embodiment, when the sanitary napkin 1 is mounted, the lateral compression groove 421, the inner compression groove 422, and the outer compression groove 423 are formed on the rear edge 4 side. Therefore, even when a force inward in the width direction WD is applied to the sanitary napkin 1, the enclosed region can be maintained so as not to be deformed. Therefore, it can suppress that rear part BP deform | transforms with respect to the force applied to the width direction WD inner side.

また、後方圧縮溝４２、４２の幅方向ＷＤ外方側が前方縁３側に向くように形成されるので、排泄物等の液体が流れてきた場合でも、液体が後方圧縮溝４２、４２それぞれに落とし込まれるので、漏れを防ぐことができる。   In addition, since the outer side in the width direction WD of the rear compression grooves 42 and 42 is formed to face the front edge 3 side, even when liquid such as excrement flows, the liquid flows into the rear compression grooves 42 and 42, respectively. Since it is dropped, leakage can be prevented.

２−３．第４実施形態
図５に示すように、第４実施形態について説明する。第４実施形態における生理用ナプキン１は、一対の後方圧縮溝４２、４２が幅方向ＷＤ中央において互いに連結され、一対の後方圧縮溝４２、４２と一対の中央圧縮溝４１、４１とは、後方圧縮溝４２、４２それぞれの幅方向ＷＤ外方側端部と、中央圧縮溝４１、４１それぞれの後方縁４側端部とが互いに連結され、さらに、前方縁３側に向けて凸となるように湾曲した前方圧縮溝４３の後方縁４側端部と、中央圧縮溝４１、４１それぞれの前方縁３側端部とが互いに連結される。そして、中央圧縮溝４１、後方圧縮溝４２、前方圧縮溝４３全体で環状に形成された圧縮溝を有する他は、第３実施形態と同様の構成である。 2-3. Fourth Embodiment A fourth embodiment will be described as shown in FIG. In the sanitary napkin 1 according to the fourth embodiment, the pair of rear compression grooves 42 and 42 are connected to each other at the center in the width direction WD, and the pair of rear compression grooves 42 and 42 and the pair of center compression grooves 41 and 41 are rearward. The width direction WD outer side end of each of the compression grooves 42 and 42 and the rear edge 4 side end of each of the center compression grooves 41 and 41 are connected to each other, and are further convex toward the front edge 3 side. The end portion on the rear edge 4 side of the front compression groove 43 curved in the direction and the end portion on the front edge 3 side of each of the central compression grooves 41 and 41 are connected to each other. And it is the structure similar to 3rd Embodiment except having the compression groove formed cyclically | annularly in the center compression groove 41, the back compression groove 42, and the front compression groove 43 whole.

具体的には、後方部ＢＰにおいて、後方圧縮溝４２は、横圧縮溝部４２１、内方圧縮溝部４２２及び外方圧縮溝部４２３で形成される。一対の内方圧縮溝部４２２は、一対の横圧縮溝部４２１、４２１それぞれにおける幅方向ＷＤ内方側に位置する側から、縦中心線ＣＬに向けて凸となるようななだらかな曲線で形成され、かつ内方圧縮溝部４２２は、縦中心線ＣＬ上で互いに連結される。
一対の外方圧縮溝部４２３、４２３は、一対の横圧縮溝部４２１、４２１それぞれの幅方向ＷＤ外方側に位置する側から、幅方向ＷＤ外方側に向けて凸となるような曲線で形成される。また、一対の外方圧縮溝部４２３、４２３における幅方向ＷＤ外方側に位置する側は、前方縁３側に向けて延びるように形成され、かつ幅方向ＷＤ内方側に互いに近づくように形成され、一対の中央圧縮溝４１、４１それぞれに接続される。 Specifically, in the rear part BP, the rear compression groove 42 is formed by a lateral compression groove part 421, an inner compression groove part 422, and an outer compression groove part 423. The pair of inward compression groove portions 422 are formed with gentle curves that are convex toward the longitudinal center line CL from the side located inward in the width direction WD in each of the pair of lateral compression groove portions 421, 421. And the inward compression groove part 422 is mutually connected on the vertical centerline CL.
The pair of outer compression groove portions 423 and 423 are formed in curves that protrude from the side located on the outer side in the width direction WD of the pair of lateral compression groove portions 421 and 421 toward the outer side in the width direction WD. Is done. Further, the sides of the pair of outer compression groove portions 423 and 423 located on the outer side in the width direction WD are formed so as to extend toward the front edge 3 side, and are formed so as to approach each other on the inner side in the width direction WD. And connected to the pair of central compressed grooves 41, 41, respectively.

一対の中央圧縮溝４１、４１は、生理用ナプキン１における中央部ＣＰから後方部ＢＰの前方縁３側にかけて形成される。中央圧縮溝４１は、長手方向ＬＤの両端側が幅方向ＷＤ外方に向けて凸となるような曲線で形成され、長手方向ＬＤの中央部分が幅方向ＷＤ内方側に向けて凸となるような、なだらかな曲線となるように形成される。そして、一対の中央圧縮溝４１、４１それぞれにおける後方縁４側に位置する端部が後方圧縮溝４２、４２それぞれに接続される。また、一対の中央圧縮溝４１、４１における前方縁３側に位置する端部は、それぞれ前方圧縮溝４３に互いに接続される。   The pair of central compression grooves 41, 41 are formed from the central portion CP of the sanitary napkin 1 to the front edge 3 side of the rear portion BP. The central compression groove 41 is formed in a curve such that both ends of the longitudinal direction LD are convex outward in the width direction WD, and the central portion of the longitudinal direction LD is convex toward the inner side of the width direction WD. It is formed to have a gentle curve. And the edge part located in the back edge 4 side in each of a pair of center compression grooves 41 and 41 is connected to the back compression grooves 42 and 42, respectively. Moreover, the edge part located in the front edge 3 side in a pair of center compression grooves 41 and 41 is mutually connected to the front compression groove 43, respectively.

前方圧縮溝４３は、中央部ＣＰにおける前方縁３側から前方部ＦＰにかけて形成される。前方圧縮溝４３は、一対の中央圧縮溝４１、４１それぞれの前方縁３側に位置する端部から連続して前方縁３側に凸となるような曲線で形成される。したがって、第４実施形態における生理用ナプキン１においては、後方圧縮溝４２、中央圧縮溝４１及び前方圧縮溝４３は、それぞれ互いに連結され、全体として環状となるように形成される。   The front compression groove 43 is formed from the front edge 3 side in the center portion CP to the front portion FP. The front compression groove 43 is formed in a curve that is continuously convex from the end located on the front edge 3 side of each of the pair of central compression grooves 41, 41 to the front edge 3 side. Therefore, in the sanitary napkin 1 according to the fourth embodiment, the rear compression groove 42, the central compression groove 41, and the front compression groove 43 are connected to each other and formed to be annular as a whole.

第４実施形態によれば、生理用ナプキン１は、後方圧縮溝４２、中央圧縮溝４１及び前方圧縮溝４３がそれぞれ連結され、全体として略環状に形成された圧縮溝を有する。これにより、第３実施形態と同様の効果を奏する他、後方部ＢＰにおける幅方向ＷＤ内方に向かってかけられる力に対して変形することを抑制しつつ、幅方向ＷＤ中央において身体側に凸となるように変形することを妨げない。さらに、生理用ナプキン１の表面を排泄物等の液体が流れてきた場合でも、各圧縮溝の底部に液体が落とし込まれ、吸収体３０に吸収保持されるので、漏れを防ぐことができる。   According to the fourth embodiment, the sanitary napkin 1 has a compression groove formed by connecting the rear compression groove 42, the central compression groove 41, and the front compression groove 43, respectively, and forming a substantially annular shape as a whole. As a result, the same effects as those of the third embodiment can be achieved, and the body side can be projected at the center in the width direction WD while suppressing deformation with respect to the force applied inward in the width direction WD in the rear portion BP. It does not prevent the deformation to become. Furthermore, even when a liquid such as excrement flows on the surface of the sanitary napkin 1, the liquid is dropped into the bottom of each compression groove and absorbed and held by the absorber 30, so that leakage can be prevented.

２−４．第５実施形態
図６に示すように、第５実施形態について説明する。第５実施形態における生理用ナプキン１は、前方圧縮溝４３及び後方圧縮溝４２にそれぞれ連結してその長手方向ＬＤ中央部分が幅方向ＷＤ内方に凸となるように形成される中央圧縮溝４１の形状と、後方縁４側端部における幅方向ＷＤ中央に形成される切り込み部４６を有する吸収体３０と、生理用ナプキン１の後方縁４端部における幅方向ＷＤ中央に形成される切り込み部４７と、生理用ナプキン１の外周縁に沿って形成されるサイドシール部５０と、を有する他は、第４実施形態と同様の構成である。 2-4. Fifth Embodiment A fifth embodiment will be described as shown in FIG. The sanitary napkin 1 according to the fifth embodiment is connected to the front compression groove 43 and the rear compression groove 42, respectively, and a central compression groove 41 is formed so that the central portion in the longitudinal direction LD protrudes inward in the width direction WD. And an absorbent body 30 having a notch 46 formed at the center in the width direction WD at the rear edge 4 side end, and a notch formed at the center in the width direction WD at the rear edge 4 end of the sanitary napkin 1 47 and the side seal part 50 formed along the outer peripheral edge of the sanitary napkin 1 are the same as those in the fourth embodiment.

一対の中央圧縮溝４１、４１は、後方部ＢＰにおける前方縁３側から中央部ＣＰにおける前方縁３側にかけて形成され、一対の中央圧縮溝４１、４１それぞれの長手方向ＬＤ略中央が幅方向ＷＤ内方側に凸となるようななだらかな曲線で形成される。   The pair of central compression grooves 41, 41 are formed from the front edge 3 side in the rear part BP to the front edge 3 side in the center part CP, and the longitudinal center LD of each of the pair of central compression grooves 41, 41 is in the width direction WD. It is formed with a gentle curve that is convex inward.

吸収体３０は、その後方縁４側の端部において、縦中心線ＣＬ上で互いに連結する内方圧縮溝部４２２、４２２の形状に沿うように切り込み部４６を有する。つまり、吸収体３０は、後方縁４側の幅方向ＷＤ中央が、前方縁３側にむけて窪むように形成される切り込み部４６を有する。   The absorber 30 has the cut | notch part 46 so that the shape of the inner compression groove parts 422 and 422 mutually connected on the longitudinal centerline CL in the edge part of the back edge 4 side may be followed. That is, the absorbent body 30 has a cut portion 46 formed so that the center in the width direction WD on the rear edge 4 side is recessed toward the front edge 3 side.

切り込み部４６は、吸収体３０の後方縁４側端部から前方縁３側に１０から７０ｍｍの長さであることが好ましい。第５実施形態においては、吸収体３０における切り込み部４６の長さは、１５ｍｍである。切り込み部４６が１０ｍｍより小さい場合には、吸収体３０の後方部ＢＰにおける幅方向ＷＤ外方が両足の動きに応じてそれぞれ動くことに寄与しない場合がある。また、切り込み部４６の長さが７０ｍｍより大きい場合には、吸収体３０自体の強度が低下する危険性がある。   The cut 46 is preferably 10 to 70 mm in length from the rear edge 4 side end of the absorber 30 to the front edge 3 side. In the fifth embodiment, the length of the cut portion 46 in the absorber 30 is 15 mm. When the cut portion 46 is smaller than 10 mm, the outer side in the width direction WD at the rear portion BP of the absorber 30 may not contribute to the movement in accordance with the movement of both feet. Moreover, when the length of the notch part 46 is larger than 70 mm, there exists a danger that the intensity | strength of absorber 30 itself may fall.

生理用ナプキン１の後方縁４側端部における幅方向ＷＤ中央には、前方縁３側に窪むように形成される切り込み部４７が形成される。生理用ナプキン１における切り込み部４７は、生理用ナプキン１の後方縁４側端部から前方縁３側へ向けて５から７０ｍｍの範囲内で窪むように形成されることが好ましい。本実施形態においては、生理用ナプキン１の切り込み部４７の長さは７ｍｍである。そして、後方圧縮溝４２、吸収体３０における切り込み部４６、及び生理用ナプキン１における切り込み部４７それぞれの頂点は、縦中心線ＣＬ上に並ぶように形成される。   In the center of the width direction WD at the rear edge 4 side end of the sanitary napkin 1, a notch 47 formed so as to be recessed toward the front edge 3 is formed. The cut portion 47 in the sanitary napkin 1 is preferably formed to be recessed within a range of 5 to 70 mm from the rear edge 4 side end of the sanitary napkin 1 toward the front edge 3 side. In the present embodiment, the length of the cut portion 47 of the sanitary napkin 1 is 7 mm. And the vertex of each of the back compression groove 42, the notch 46 in the absorber 30, and the notch 47 in the sanitary napkin 1 is formed to be aligned on the longitudinal center line CL.

生理用ナプキン１の外縁は、表面シート１０又はサイドシート１１と、裏面シート２０とを互いに圧縮して接合されたサイドシール部５０が形成される。   The outer edge of the sanitary napkin 1 is formed with a side seal portion 50 in which the top sheet 10 or the side sheet 11 and the back sheet 20 are compressed and joined together.

本実施形態によれば、生理用ナプキン１は、内方圧縮溝部４２２、４２２により形成された形状に沿うように切り込み部４６を有する吸収体３０と、生理用ナプキン１の後方縁４側端部における幅方向ＷＤ略中央が前方縁３側に窪むように形成された切り込み部４７をと有する。これにより、第４実施形態と同様の効果を奏する他、切り込み部４６、４７を中心として、生理用ナプキン１の幅方向ＷＤ中央が身体側へ凸となるように変形することを促す。また、両足のそれぞれの動きに合わせて、後方部ＢＰが独立して動くことを妨げない。したがって、装着中に使用者が動作した場合であっても、生理用ナプキン１が身体に沿うように動くことができるので、身体と生理用ナプキン１との隙間が生じることによる漏れを防止することができる。   According to the present embodiment, the sanitary napkin 1 includes the absorbent body 30 having the cut portion 46 so as to follow the shape formed by the inner compression groove portions 422 and 422, and the rear edge 4 side end portion of the sanitary napkin 1. In the width direction WD at the center of the front edge 3 side. Thus, in addition to the same effects as those of the fourth embodiment, it is urged to deform the sanitary napkin 1 so that the center in the width direction WD is convex toward the body, with the notches 46 and 47 as the center. Moreover, it does not prevent the rear part BP from moving independently in accordance with the movement of both feet. Therefore, even when the user moves during wearing, the sanitary napkin 1 can move along the body, so that leakage due to a gap between the body and the sanitary napkin 1 is prevented. Can do.

さらに、生理用ナプキン１における後方圧縮溝４２は、横圧縮溝部４２１、４２１を有することにより、幅方向ＷＤ内方側へ向かう力がかけられた場合に、後方部ＢＰ外方が変形することを抑制する。さらには、外縁にサイドシール部５０を有するので、生理用ナプキン１の外方側の形状を維持することに有用である。   Furthermore, the rear compression groove 42 in the sanitary napkin 1 has the lateral compression groove portions 421 and 421, so that when the force toward the inner side in the width direction WD is applied, the outer side of the rear portion BP is deformed. Suppress. Furthermore, since the side seal portion 50 is provided at the outer edge, it is useful for maintaining the shape of the sanitary napkin 1 on the outer side.

第１実施形態においては、生理用ナプキン１は、一つの直線上に並ぶように形成された一対の横圧縮溝部４２１、４２１を有するが、これに限らない。例えば、横圧縮溝部４２１、４２１は、横圧縮溝部４２１、４２１それぞれにおける縦中心線ＣＬ側に位置する端部が後方縁４側に位置し、後方縁４側から前方縁３側へ徐々に幅方向ＷＤ外方にむけて、いわゆるハの字型となるように形成されてもよい。また、逆に、横圧縮溝部４２１、４２１は、横圧縮溝部４２１、４２１それぞれにおける縦中心線ＣＬ側に位置する端部から、後方縁４側に向けて徐々に幅方向ＷＤ外方に向けて、いわゆる逆ハの字型となるように形成されてもよい。   In the first embodiment, the sanitary napkin 1 has a pair of lateral compression groove portions 421 and 421 formed so as to be aligned on one straight line, but is not limited thereto. For example, the lateral compression groove portions 421 and 421 are arranged such that the end portions of the lateral compression groove portions 421 and 421 located on the longitudinal center line CL side are located on the rear edge 4 side, and gradually increase in width from the rear edge 4 side to the front edge 3 side. You may form so that it may become what is called a square shape toward the direction WD outward. On the other hand, the lateral compression groove portions 421 and 421 are gradually directed outward in the width direction WD from the end portions of the lateral compression groove portions 421 and 421 located on the longitudinal center line CL side toward the rear edge 4 side. It may be formed so as to have a so-called reverse C shape.

第２実施形態及び第３実施形態において、内方圧縮溝部４２２、４２２及び外方圧縮溝部４２３、４２３がそれぞれ曲線で形成された後方圧縮溝４２、４２を有するが、これに限らない。例えば、内方圧縮溝部４２２、４２２、外方圧縮溝部４２３、４２３は、直線で形成されてもよい。   In the second embodiment and the third embodiment, the inner compression groove portions 422 and 422 and the outer compression groove portions 423 and 423 have the rear compression grooves 42 and 42 formed by curves, respectively, but the present invention is not limited thereto. For example, the inner compression groove portions 422 and 422 and the outer compression groove portions 423 and 423 may be formed in a straight line.

本実施形態においては、後方圧縮溝４２及び／又は中央圧縮溝４１は、その底部に高圧縮部４１１と低圧縮部４１２とが交互に連続的に形成されることにより構成されるが、これに限らない。例えば、高圧縮部４１１及び／又は低圧縮部４１２のみが形成され、全て均一の高さとなるような溝であってもよい。また、後方圧縮溝４２又は中央圧縮溝４１は、高圧縮部４１１又は低圧縮部４１２が溝幅全体に形成されるのではなく、各溝幅の一部に形成されるようにしてもよい。また、高圧縮部４１１又は低圧縮部４１２の形状をドット状やハート形状とし、後方圧縮溝４２及び／又は中央圧縮溝４１に意匠性を付与してもよい。これにより、後方圧縮溝４２及び／又は中央圧縮溝４１は、上記のような効果を奏すると同時に生理用ナプキン１の外観について、使用者に対する視覚性を向上させることができる。   In the present embodiment, the rear compression groove 42 and / or the central compression groove 41 is configured by alternately and continuously forming the high compression portion 411 and the low compression portion 412 at the bottom thereof. Not exclusively. For example, the groove may be such that only the high compression part 411 and / or the low compression part 412 are formed and all have a uniform height. Further, the rear compression groove 42 or the central compression groove 41 may be formed not in the entire groove width of the high compression part 411 or the low compression part 412 but in a part of each groove width. Moreover, the shape of the high compression part 411 or the low compression part 412 may be made into a dot shape or a heart shape, and the designability may be imparted to the rear compression groove 42 and / or the central compression groove 41. Thereby, the back compression groove | channel 42 and / or the center compression groove | channel 41 can improve the visibility with respect to a user about the external appearance of the sanitary napkin 1 simultaneously with the above effects.

上述の各実施形態においては、吸収性物品の例として、生理用ナプキンについて説明したが、これに限らない。例えば、パンティライナーや尿とりパッド、軽失禁用の尿吸収ライナーのような吸収性物品に使用することができる。   In each above-mentioned embodiment, although sanitary napkins were explained as an example of an absorptive article, it is not restricted to this. For example, it can be used for absorbent articles such as panty liners, urine collection pads, and urine absorption liners for light incontinence.

本発明の好適な第１実施形態における生理用ナプキン１の平面図である。It is a top view of the sanitary napkin 1 in suitable 1st Embodiment of this invention. 図１におけるＡ−Ａ断面図である。It is AA sectional drawing in FIG. 本発明の好適な第２実施形態における生理用ナプキンの平面図である。It is a top view of the sanitary napkin in suitable 2nd Embodiment of this invention. 本発明の好適な第３実施形態における生理用ナプキンの平面図である。It is a top view of the sanitary napkin in suitable 3rd Embodiment of this invention. 本発明の好適な第４実施形態における生理用ナプキンの平面図である。It is a top view of the sanitary napkin in suitable 4th Embodiment of this invention. 本発明の好適な第５実施形態における生理用ナプキンの平面図である。It is a top view of the sanitary napkin in suitable 5th Embodiment of this invention.

符号の説明Explanation of symbols

ＢＰ 後方部
ＣＬ 中心線
ＣＰ 中央部
ＦＰ 前方部
ＬＤ 長手方向
ＷＤ 幅方向
１ 生理用ナプキン
２ ウイング
３ 前方縁
４ 後方縁
１０ 表面シート
１１ サイドシート
２０ 裏面シート
３０ 吸収体
４１ 中央圧縮溝
４２ 後方圧縮溝
４２１ 横圧縮溝部
４２２ 内方圧縮溝部
４２３ 外方圧縮溝部 BP Rear part CL Center line CP Center part FP Front part LD Longitudinal direction WD Width direction 1 Sanitary napkin 2 Wing 3 Front edge 4 Rear edge 10 Top sheet 11 Side sheet 20 Back sheet 30 Absorber 41 Central compression groove 42 Rear compression groove 421 Lateral compression groove 422 Inner compression groove 423 Outer compression groove

Claims (6)

表面シートと、裏面シートと、前記表面シートと前記裏面シートとの間に配置される吸収体を備える縦長状の吸収性物品であって、
該吸収性物品の長手方向における一端である後縁側に位置する後方部には後方圧縮溝が設けられ、
前記後方圧縮溝は、該吸収性物品の幅方向に延び、互いに離間する一対の横圧縮溝部を有し、該一対の横圧縮溝部は、該吸収性物品を幅方向に二分し長手方向に延びる縦中心線を対称軸として略線対称に形成される吸収性物品。 A vertically long absorbent article comprising a top sheet, a back sheet, and an absorbent body disposed between the top sheet and the back sheet,
A rear compression groove is provided in the rear part located on the rear edge side which is one end in the longitudinal direction of the absorbent article,
The rear compression groove has a pair of lateral compression groove portions that extend in the width direction of the absorbent article and are separated from each other, and the pair of lateral compression groove portions bisect the absorbent article in the width direction and extend in the longitudinal direction. An absorbent article formed substantially symmetrically with a longitudinal center line as an axis of symmetry. 前記一対の横圧縮溝部それぞれは、略直線状に形成される請求項１に記載の吸収性物品。   The absorbent article according to claim 1, wherein each of the pair of lateral compression groove portions is formed in a substantially linear shape. 前記後方圧縮溝は、前記一対の横圧縮溝部それぞれにおける前記幅方向の内方に連続して形成され、前記縦中心線を対称軸として略線対称に形成される内方圧縮溝部を有する請求項１又は２に記載の吸収性物品。   The back compression groove has an inward compression groove portion formed continuously inward in the width direction in each of the pair of lateral compression groove portions and formed substantially line-symmetrically with the longitudinal center line as an axis of symmetry. The absorbent article according to 1 or 2. 前記内方圧縮溝部は、前記縦中心線を挟んで形成される一対の内方圧縮溝部であり、前記一対の内方圧縮溝部それぞれにおける前記縦中心線側の端部は、該端部それぞれから延びる仮想延長線が互いに交差するように形成される請求項３に記載の吸収性物品。   The inner compression groove portions are a pair of inner compression groove portions formed with the vertical center line interposed therebetween, and the end portions on the vertical center line side of the pair of inner compression groove portions respectively from the end portions. The absorbent article of Claim 3 formed so that the extended virtual extension line may mutually cross | intersect. 前記後方圧縮溝は、前記一対の横圧縮溝部それぞれにおける前記幅方向の外方に連続して形成される一対の外方圧縮溝部を有し、該一対の外方圧縮溝部それぞれは、該一対の外方圧縮溝部それぞれにおける前記幅方向外方に位置する一端が、前記一対の横圧縮溝部よりも該吸収性物品における前縁側に位置するように形成される請求項１から４のいずれかに記載の吸収性物品。   The rear compression groove has a pair of outer compression groove portions that are continuously formed outward in the width direction in each of the pair of lateral compression groove portions, and each of the pair of outer compression groove portions includes the pair of outer compression groove portions. The one end located in the said width direction outward in each outward compression groove part is formed so that it may be located in the front edge side in this absorbent article rather than a pair of said horizontal compression groove part. Absorbent articles. 該吸収性物品の前記長手方向における中央部に形成される一対の中央圧縮溝を更に備える請求項１から５のいずれかに記載の吸収性物品。   The absorbent article according to any one of claims 1 to 5, further comprising a pair of central compressed grooves formed at a central portion in the longitudinal direction of the absorbent article.
JP2007249453A 2007-09-26 2007-09-26 Absorbent articles Active JP5139017B2 (en)

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UAA201005001A UA98810C2 (en) 2007-09-26 2008-09-02 Absorbent article
MX2010003187A MX2010003187A (en) 2007-09-26 2008-09-02 Absorbent article.
BRPI0815987A BRPI0815987A2 (en) 2007-09-26 2008-09-02 "absorbent article"
PCT/JP2008/065749 WO2009041223A1 (en) 2007-09-26 2008-09-02 Absorbent article
EA201000372A EA017355B1 (en) 2007-09-26 2008-09-02 Absorbent article
TW097137263A TW200934451A (en) 2007-09-26 2008-09-26 Absorbent article
EG2010030477A EG26175A (en) 2007-09-26 2010-03-23 Absorbent article
MA32769A MA31774B1 (en) 2007-09-26 2010-04-14 ABSORBENT ARTICLE
CO10044593A CO6270200A2 (en) 2007-09-26 2010-04-16 DISPOSABLE ABSORBENT ARTICLE PROVIDED WITH A COMPRESSED REAR Groove FOR MORE MOLDING AND LEAK PREVENTION

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