TW201720401A - Absorbent article - Google Patents

Absorbent article Download PDF

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Publication number
TW201720401A
TW201720401A TW105135474A TW105135474A TW201720401A TW 201720401 A TW201720401 A TW 201720401A TW 105135474 A TW105135474 A TW 105135474A TW 105135474 A TW105135474 A TW 105135474A TW 201720401 A TW201720401 A TW 201720401A
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TW
Taiwan
Prior art keywords
joint
sheet
longitudinal direction
absorbent article
area
Prior art date
Application number
TW105135474A
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Chinese (zh)
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TWI710366B (en
Inventor
Jun Sasaki
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Kao Corp
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Publication of TWI710366B publication Critical patent/TWI710366B/en

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Classifications

    • 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
    • A61F13/51—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 outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • 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
    • A61F13/51—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 outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/51104—Topsheet, i.e. the permeable cover or layer facing the skin the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections
    • 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
    • A61F13/51—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 outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/5116—Topsheet, i.e. the permeable cover or layer facing the skin being formed of multiple layers
    • 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
    • A61F13/51—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 outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/5116—Topsheet, i.e. the permeable cover or layer facing the skin being formed of multiple layers
    • A61F2013/51182—Topsheet, i.e. the permeable cover or layer facing the skin being formed of multiple layers with non-continuous bonding
    • 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
    • A61F13/51—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 outer layers
    • A61F13/511—Topsheet, i.e. the permeable cover or layer facing the skin
    • A61F13/513—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability
    • A61F2013/51316—Topsheet, i.e. the permeable cover or layer facing the skin characterised by its function or properties, e.g. stretchability, breathability, rewet, visual effect; having areas of different permeability with low friction coefficient

Landscapes

  • 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

In the present invention, a surface sheet (2) comprises a laminated body of a first sheet and a second sheet. The laminated body has a plurality of joining portions that partially join the first sheet and the second sheet. The first sheet forms a plurality of protrusions which protrude in a direction away from the second sheet and toward the wearer's body in locations other than the joining portions. The surface sheet (2) has a central area (S) and a pair of side areas (M) adjoining the central area (S). The shapes and/or arrangement patterns of the joining portions are different in the central area (S) and the side areas (M). The area ratio of the joining portions is substantially the same in the central area (S) and the side areas (M). The number of the joining portions per unit area is greater in the side areas (M) than in the central area (S).

Description

吸收性物品Absorbent article

本發明係關於一種拋棄式尿布或經期衛生棉等各種吸收性物品。The present invention relates to various absorbent articles such as disposable diapers or menstrual sanitary napkins.

已知有如下技術，其係以在穿著吸收性物品之狀態下減小正面片材與穿著者之肌膚之接觸面積或摩擦、或者提高質感或透氣性為目的，而將正面片材中之肌膚對向面側製成立體之形狀。例如，專利文獻1中記載有一種吸收性物品1之正面片材2，其於位於長度方向之中央部之中央區域2c具有多個在該長度方向上較長之形狀之凸部21，且於位於該中央區域2c之前後之端部區域2a、2b具有多個在吸收性物品之寬度方向上較長之形狀之凸部22。中央區域2c及端部區域2a、2b中之凸部21、22係配置成於吸收性物品1之長度方向及寬度方向分散之狀態。正面片材2包含：第1不織布23，其形成有凸部21、22；及大致平坦之第2不織布24，其於第1不織布23之除凸部21、22以外之部分與第1不織布23接合。該文獻中記載了，具有此種正面片材2之吸收性物品1吸收性能優異，防滲漏性能亦優異。 專利文獻2中記載有一種吸收性物品1之正面片材2，其於配置於沿長度方向延伸之中央部之中央區域2a，以於長度方向及寬度方向分散之狀態形成有多個凸部21，且於配置於該中央區域2a之左右兩側之側部區域2b、2b，於寬度方向形成有複數行由多個凸部22於長度方向串列而成之凸部行R1～R3。正面片材2包含：第1不織布22，其被賦形為凹凸形狀；及大致平坦之第2不織布23，其於第1不織布22之凹部22a之整體或一部分與第1不織布22接合。該文獻中記載了，具有此種正面片材2之吸收性物品1防滲漏性能優異，可有效地防止側漏及自前後端之滲漏之兩者。 先前技術文獻 專利文獻 專利文獻1：日本專利特開2009-136349號公報 專利文獻2：日本專利特開2009-148445號公報There is known a technique in which the skin in the front sheet is used for the purpose of reducing the contact area or friction of the front sheet and the wearer's skin in the state of wearing the absorbent article, or improving the texture or gas permeability. The opposite side is formed into a three-dimensional shape. For example, Patent Document 1 discloses a front sheet 2 of an absorbent article 1 having a plurality of convex portions 21 having a shape elongated in the longitudinal direction in a central portion 2c located at a central portion in the longitudinal direction, and The end regions 2a, 2b located before and after the central portion 2c have a plurality of convex portions 22 having a shape that is long in the width direction of the absorbent article. The convex portions 21 and 22 of the central region 2c and the end regions 2a and 2b are disposed in a state in which the absorbent article 1 is dispersed in the longitudinal direction and the width direction. The front sheet 2 includes a first nonwoven fabric 23 having convex portions 21 and 22, and a substantially flat second nonwoven fabric 24, which is a portion other than the convex portions 21 and 22 of the first nonwoven fabric 23 and the first nonwoven fabric 23 Engage. This document describes that the absorbent article 1 having such a front sheet 2 is excellent in absorbability and excellent in leakage prevention performance. Patent Document 2 discloses a front sheet 2 of an absorbent article 1 in which a plurality of convex portions 21 are formed in a central portion 2a disposed at a central portion extending in the longitudinal direction in a state of being dispersed in a longitudinal direction and a width direction. Further, in the side regions 2b and 2b disposed on the left and right sides of the central region 2a, convex rows R1 to R3 in which a plurality of rows of the plurality of convex portions 22 are arranged in the longitudinal direction are formed in the width direction. The front sheet 2 includes a first nonwoven fabric 22 that is shaped into a concave-convex shape, and a substantially flat second nonwoven fabric 23 that is joined to the first nonwoven fabric 22 in whole or in part of the concave portion 22a of the first nonwoven fabric 22. This document describes that the absorbent article 1 having such a front sheet 2 is excellent in leakage prevention performance, and can effectively prevent both side leakage and leakage from the front and rear ends. PRIOR ART DOCUMENT PATENT DOCUMENT Patent Document 1: Japanese Patent Laid-Open Publication No. 2009-136349. Patent Document 2: Japanese Patent Laid-Open No. 2009-148445

為了提高如專利文獻1及2中所記載的包含2片不織布之貼合積層體之正面片材之柔軟度、或減少與穿著者之肌膚之摩擦，較有效的是將兩不織布之接合面積率設定為較低。然而，接合面積率之降低多數情況下會導致兩不織布之接合強度之降低。接合強度之降低有時會成為吸收性物品之穿著中之兩不織布之剝離、或兩不織布間產生隆起等之原因。尤其於作為與穿著者之肌膚之接觸之程度較高之區域之腿部開口部附近，更易引起上述剝離或隆起之產生。 [解決問題之技術手段] 本發明提供一種吸收性物品，其係具備正面片材、背面片材及配置於該等兩片材間之吸收體者， 上述正面片材包含第1片材與第2片材之積層體， 上述積層體具有複數個因第1片材與第2片材之局部接合所產生之接合部，第1片材於除上述接合部以外之部位向遠離第2片材之方向突出，而形成朝向穿著者之身體突出之複數個凸部， 上述正面片材具有位於寬度方向之中央部且於長度方向延伸之中央區域、及與該中央區域相鄰且於長度方向延伸之一對側部區域， 上述接合部之形狀及/或配置圖案於中央區域與側部區域不同， 上述接合部之面積率於中央區域與側部區域大致相同， 每單位面積之上述接合部之個數係側部區域多於中央區域。In order to improve the softness of the front sheet including the two sheets of non-woven fabric laminated sheets described in Patent Documents 1 and 2, or to reduce the friction with the wearer's skin, it is effective to combine the joint area ratios of the two nonwoven fabrics. Set to lower. However, the reduction in the joint area ratio causes, in many cases, a decrease in the joint strength of the two nonwoven fabrics. The decrease in the joint strength may cause peeling of the two non-woven fabrics in the wearing of the absorbent article or bulging between the two nonwoven fabrics. In particular, in the vicinity of the leg opening portion in a region where the degree of contact with the wearer's skin is high, the above-mentioned peeling or bulging is more likely to occur. [Technical means for solving the problem] The present invention provides an absorbent article comprising a front sheet, a back sheet, and an absorbent body disposed between the two sheets, wherein the front sheet includes the first sheet and the first sheet In the laminated body of the two sheets, the laminated body has a plurality of joint portions formed by partial joining of the first sheet and the second sheet, and the first sheet is separated from the second sheet at a portion other than the joint portion. a plurality of convex portions protruding toward the wearer's body, the front sheet having a central portion extending in the longitudinal direction at a central portion in the width direction, and adjacent to the central portion and extending in the longitudinal direction In the pair of side regions, the shape and/or arrangement pattern of the joint portion is different from the side region in the central region, and the area ratio of the joint portion is substantially the same as the central region and the side region, and the joint portion per unit area is The number of side areas is more than the central area.

本發明係關於包含2片片材之積層體之吸收性物品之正面片材之改良，進一步詳細而言係關於一種具備呈現出良好之質感且不易於2片片材間產生剝離或隆起之正面片材之吸收性物品。 以下，對於本發明之吸收性物品，基於其較佳之實施形態並參照圖式而進行說明。圖1及圖2表示本發明之吸收性物品之一實施形態之拋棄式尿布1。尿布1具有穿著時配置於穿著者之腹側之腹側部1F、配置於背側之背側部1R、及位於其等之間之胯下部1M。尿布1具有自腹側部1F經由胯下部1M而向背側部1R延伸且相當於穿著者之前後方向之縱向X、及與其正交之橫向Y。腹側部1F、胯下部1M及背側部1R相當於將尿布1於縱向X分成三個相等部分之情形時之各區域。胯下部1M具有穿著尿布1時與穿著者之排泄部對向配置之排泄部對向部，該排泄部對向部通常位於尿布1之縱向X之中央部或其附近。 如圖1及圖2所示，尿布1具備：吸收體4，其具有吸收性芯體40；液體透過性之正面片材2，其配置於該吸收體4之肌膚對向面側，且於穿著時可與穿著者之肌膚接觸；及液體不透過性或撥水性之背面片材3，其配置於該吸收體4之非肌膚對向面側。於如圖1所示之俯視下，尿布1形成為位於胯下部1M之縱向X之中央部向內側收縮且於一方向、即縱向X上較長之縱長之沙漏狀。正面片材2具有與吸收體4大致相同之尺寸，或具有較吸收體4略大之尺寸。背面片材3具有大於吸收體4之尺寸。又，背面片材3具有大於正面片材2之尺寸。背面片材3自吸收體4之周緣向外側延出，而形成如圖1所示之展開且伸長狀態之尿布1之外形。作為背面片材3，可無特別限制地使用先前用於此種吸收性物品之各種片材，可使用樹脂膜、樹脂膜與不織布等之層壓片等。背面片材3可具有透氣性。 於本說明書中，「肌膚對向面」係吸收性物品或其構成構件(例如吸收體4)中之穿著吸收性物品時朝向穿著者之肌膚側之面、即相對而言離穿著者之肌膚較近之側之面。「非肌膚對向面」係吸收性物品或其構成構件中之穿著吸收性物品時朝向與肌膚側相反之側、即朝向相對而言離穿著者之肌膚較遠之側之面。此處所言之「穿著時」係指維持通常之適當之穿著位置、即該吸收性物品之正確之穿著位置之狀態，不包括吸收性物品處於偏離該穿著位置之狀態之情形。 於尿布1之正面片材2側之沿著縱向X之左右兩側，分別配置有側部片材5。側部片材5具有沿著縱向X之內側緣部、及位於較該內側緣部更靠橫向Y之外側且沿著縱向X之外側緣部，於如圖1所示之俯視下，該內側緣部與吸收體4重疊，如圖2所示，該外側緣部自吸收體4之沿著縱向X之側緣向橫向Y之外側延出而與背面片材3接合。於配置在穿著者之腿部周圍之左右之腿部中之側部片材5與背面片材3之間，線狀之彈性構件50沿著縱向X以伸長狀態被固定。藉此，於尿布1之穿著時之腿部，藉由彈性構件50之收縮而形成一對腿部褶皺。又，於側部片材5之內側緣部，線狀之彈性構件51沿著縱向X以伸長狀態被固定，藉此，穿著尿布1時，藉由彈性構件51之收縮，而至少於胯下部1M，側部片材5以與背面片材3之接合部為起點，該內側緣部側朝向穿著者之肌膚側立起，而形成防漏翻邊。該防漏翻邊可防止尿等排泄液向橫向Y之外側之流出、即所謂的側漏。正面片材2、背面片材3、吸收體4、側部片材5及彈性構件50、51係藉由熱熔型接著劑等公知之接合方法而相互接合。 尿布1係所謂展開型之拋棄式尿布。如圖1所示，於尿布1之背側部1R之沿著縱向X之兩側緣部，設置有一對黏扣帶6、6。於黏扣帶6，安裝有包含機械性面扣結件之公構件之固定部(未圖示)。又，於尿布1之腹側部1F之非肌膚對向面，形成有包含機械性面扣結件之母構件之被固定區域7。被固定區域7係利用公知之接合方法、例如接著劑或熱密封等將機械性面扣結件之母構件接合固定於形成腹側部1F之非肌膚對向面之背面片材3之非肌膚對向面而形成，從而可裝卸自如地固定黏扣帶6之上述固定部。 於如圖1所示之俯視下，吸收體4形成為於縱向X上較長之形狀，且自腹側部1F遍及至背側部1R而延伸。吸收體4係包含含有吸收性材料之液體保持性之吸收性芯體40、及將該吸收性芯體40之肌膚對向面40a及非肌膚對向面40b被覆之包芯片材45而構成。吸收性芯體40與包芯片材45之間係藉由熱熔型接著劑等公知之接合手段而接合。吸收體4(吸收性芯體40)係相對於將尿布1於橫向Y分成兩個部分且於縱向X延伸之假想直線(未圖示)而對稱地形成。 吸收性芯體40可為單層結構。或者，吸收性芯體40可為多層結構。於如圖1所示之俯視下，吸收性芯體40形成為長度方向、即縱向X之中央部向內側收縮之沙漏狀。吸收性芯體40係將包含吸收性材料之芯體形成材料進行纖維堆積而成。作為吸收性材料，可無特別限制地使用作為此種吸收性芯體之形成材料而通常使用者，例如，可列舉：木漿、經親水化劑處理之合纖纖維等親水性纖維或吸水性聚合物粒子。即，吸收性芯體40可為親水性纖維之纖維堆積體、或使該纖維堆積體擔載吸水性聚合物粒子而成者。 作為包芯片材45，可使用透水性之片材。作為包芯片材45，例如，可使用紙、不織布等。於本實施形態之尿布1中，包芯片材45係具有吸收性芯體40之橫向Y之長度之2倍以上3倍以下之寬度之1片連續之包芯片材45，如圖2所示，該1片包芯片材45將吸收性芯體40之肌膚對向面40a之整個區域被覆，且自吸收性芯體40之沿著縱向X之兩側緣向橫向Y之外側延出，該延出部向下捲至吸收性芯體40之下方，且將吸收性芯體40之非肌膚對向面40b之整個區域被覆。但，包芯片材45之形態並不限定於此，例如，亦可為包含將吸收性芯體40之肌膚對向面40a被覆之肌膚側包芯片材、及將吸收性芯體40之非肌膚對向面40b被覆之非肌膚側包芯片材，且兩片材分別為獨立個體之片材。 如圖3所示，配置於吸收體4中之肌膚對向面40a側之正面片材2具有中央區域S及位於該中央區域S之兩側之一對側部區域M、M。中央區域S位於尿布1之寬度方向(即橫向Y)之中央部，且沿著尿布1之長度方向(即縱向X)延伸。一對側部區域M、M與中央區域S相鄰，且沿著尿布1之長度方向(即縱向X)延伸。中央區域S及側部區域M較佳為至少形成於胯下部1M，進而較佳為自胯下部1M遍及至腹側部1F及背側部1R之中任一者或兩者而形成，更佳為遍及吸收體4之全長而形成，進而更佳為遍及尿布1之全長而形成。 中央區域S與側部區域M可根據下述接合部之形狀及/或配置圖案而區分。中央區域S之寬度相對於正面片材2之寬度較佳為30%以上，進而較佳為40%以上。又，較佳為70%以下，進而較佳為60%以下。進而，中央區域S之寬度相對於正面片材2之寬度較佳為30%以上70%以下，進而較佳為40%以上60%以下。側部區域M之寬度相對於正面片材2之寬度較佳為15%以上，進而較佳為20%以上。又，較佳為35%以下，進而較佳為30%以下。進而，側部區域M之寬度相對於正面片材2之寬度較佳為15%以上35%以下，進而較佳為20%以上30%以下。另一方面，側部區域M之寬度之總和相對於正面片材2之寬度較佳為30%以上，進而較佳為40%以上。又，較佳為70%以下，進而較佳為60%以下。進而，側部區域M之寬度之總和相對於正面片材2之寬度較佳為30%以上70%以下，進而較佳為40%以上60%以下。 正面片材2包含第1片材與第2片材之積層體。第1片材於穿著尿布1之狀態下，位於穿著者之身體側。第2片材位於吸收體4側。如作為圖3之主要部分之放大圖之圖4所示，正面片材2於中央區域S及側部區域M之任一者中，均係經積層之第1片材及第2片材藉由壓紋加工或超音波加工而局部地接合，從而形成有複數個接合部M11、M12、S11、S12，第1片材於除該接合部M11、M12、S11、S12以外之部位向遠離第2片材之方向突出，而形成朝向穿著者之肌膚側突出之凸部M21、S21、S22。正面片材2於中央區域S及側部區域M之任一者中，均係第2片材側之面大致平坦，且於第1片材側形成有起伏較大之凹凸。 於正面片材2之中央區域S中，形成有2種接合部S11、S12。接合部S11、S12在均呈具有沿著縱向X及橫向Y之邊之矩形之方面而言一致，但呈互不相同之形狀。接合部S11係沿著縱向X並隔開特定之距離而配置為行狀，從而形成第1接合部行S31。接合部S12亦沿著縱向X並隔開特定之距離而配置為行狀，從而形成第2接合部行S32及第3接合部行S33。於相鄰之第1接合部行S31之間，交替地配置有第2接合部行S32及第3接合部行S33。第2接合部行S32與第3接合部行S33係沿著縱向X之接合部S12之間距相同，且相位錯開半個間距。藉由以此方式配置接合部S11、S12，於中央區域S形成有凸部S21、S22。凸部S21呈沿著橫向Y之長度長於沿著縱向X之長度之大致橢圓形之俯視形狀。凸部S22呈沿著橫向Y之長度與沿著縱向X之長度大致相同之大致圓形之俯視形狀。於沿著縱向X觀察正面片材2時，於中央區域S形成有沿著縱向X交替地配置有凸部S21、及凸部S22之第1凸部行S34。第1凸部行S34位於與上述第2接合部行S32相同之位置。又，於沿著縱向X觀察正面片材2時，於中央區域S形成有沿著縱向X僅配置有凸部S22之第2凸部行S35。第2凸部行S35位於與上述第3接合部行S33相同之位置。「大致橢圓形」係包含完全之橢圓形及長圓形之概念。「沿著橫向Y之長度與沿著縱向X之長度大致相同之大致圓形」包含如下兩者：完全之圓形、及沿著縱向X之長度相對於沿著橫向Y之長度處於±10%之範圍內之情形時之橢圓形。 於正面片材2之側部區域M中，形成有2種接合部M11、M12。接合部M11、M12在均呈具有沿著縱向X及橫向Y之邊之矩形之方面而言一致，但呈互不相同之形狀。接合部M11係沿著縱向X並隔開特定之距離而配置為行狀，從而形成第4接合部行M31。接合部M12亦沿著縱向X並隔開特定之距離而配置為行狀，從而形成第5接合部行M32。第4接合部行M31與第5接合部行M32於橫向Y交替地配置。第4接合部行M31中之接合部M11之間距與第5接合部行M32中之接合部M12之間距均相同。並且，於第4接合部行M31、及第5接合部行M32，接合部M11、M12之配置錯開半個間距。其結果為，於側部區域M中，僅形成有1種凸部即凸部M21。凸部M21形成於被沿著縱向X相鄰之2個接合部M11、及沿著橫向Y相鄰之2個接合部M12之合計4個接合部包圍之區域內。凸部M21呈沿著橫向Y之長度與沿著縱向X之長度大致相同之大致圓形之俯視形狀。於沿著橫向Y觀察正面片材2時，於側部區域M，形成有凸部M21沿著橫向Y配置而成之第3凸部行M33、及第4凸部行M34。於第3凸部行M33、及第4凸部行M34，凸部M21之間距相同，且凸部M21之配置錯開半個間距。 關於形成於中央區域S之凸部S21及凸部S22，其高度可相同，或者亦可不同，但就提高外觀及觸感之觀點而言，較佳為不同之高度。於兩凸部S21、S22之高度不同之情形時，可為凸部S21高於凸部S22，或者亦可相反地，凸部S22高於凸部S21。藉由將2種凸部設為不同之高度，而在用手指觸碰該部位時，觸感不同之部位會交替地出現，與具有高度相同之1種凸部者相比，感受到更好之質感。又，在所排泄之尿沿著正面片材2之表面而流動時，尿自較低之凸部向較高之凸部移動時之阻力變大，藉此尿變得不易流動，而可減少滲漏。關於形成於側部區域M之凸部M21，凸部M21之高度可與凸部S21及凸部S22相同，或者亦可不同。例如，凸部M21之高度可與凸部S21及凸部S22中之任一者相同，或者亦可與凸部S21及凸部S22之兩者相同，或者亦可與該兩者不同。側部區域M因穿著者之腿之活動而易於產生正面片材2之隆起。因此，就抑制正面片材2之隆起之觀點而言，配置於側部區域M之凸部M21較佳為由1種凸部構成。又，較佳為，相較於配置於更重視質感之中央區域S之凸部S21、S22之高度，配置於側部區域M之凸部M21之高度較低，或兩者之高度相同。 於正面片材2中，接合部S11、S12、M11、M12之形狀及/或配置圖案於中央區域S與側部區域M不同。即，接合部S11、S12、M11、M12之形狀或配置圖案之至少任一者於中央區域S與側部區域M不同。詳細而言，於中央區域S與側部區域M，為如下情形中之任一者：(i)接合部之配置圖案相同，但接合部之形狀不同；或(ii)接合部之形狀相同，但接合部之配置圖案不同；或(iii)接合部之配置圖案不同，且接合部之形狀亦不同。藉由於中央區域S與側部區域M設置此種差異，可適當地控制正面片材2與穿著者之肌膚之接觸，並且亦可大幅改變外觀，但較佳為接合部之形狀及配置圖案不同。於圖3及圖4所示之實施形態中，於中央區域S與側部區域M，接合部S11、S12、M11、M12之配置圖案不同，且接合部S11、S12、M11、M12之形狀亦不同。 於正面片材2中，於中央區域S與側部區域M，接合部之形狀及/或配置圖案不同，此外，接合部之面積率於中央區域S與側部區域M大致相同。接合部之面積率(%)係於中央區域S及側部區域M之各者中，於特定之面積中所占之接合部之面積之總和除以該特定之面積並進而乘以100所得之值。接合部之面積率大致相同包含如下兩者：接合部之面積率於中央區域S與側部區域M相同之情形、及側部區域M之面積率相對於中央區域S之面積率處於±15%之範圍內之情形。即，於中央區域S之面積率為A%時，側部區域M之面積率為0.85A%以上1.15A%以下之情形時，稱之為中央區域S與側部區域M之面積率大致相同。 藉由接合部之面積率於中央區域S與側部區域M大致相同，產生了如下優點，即，於穿著尿布1之狀態下，構成正面片材2之第1片材與第2片材變得不易剝離。又，亦產生了如下優點，即，將第1片材與第2片材貼合而製造正面片材2時之輥旋轉時之壓力之變動變少，又，可使輥之寬度方向之線壓於中央區域S與側部區域M為大致相同，從而顯著地改善加工性。例如，於第1片材與第2片材之貼合中變得不易產生空洞。又，可抑制用於貼合之輥產生磨耗或缺損。 又，藉由接合部之面積率於中央區域S與側部區域M大致相同，可獲得對吸收性物品而言重要之優點，即，可利用吸收體整個面將所排泄之尿均勻地吸收。於本實施形態中，在藉由壓紋加工或超音波加工將積層之第1片材及第2片材局部地接合而形成複數個接合部M11、M12、S11、S12時，於該接合部中，構成第1片材及第2片材之不織布之纖維被膜化以防止使用中之剝離、隆起，從而於接合部中，尿不被吸收。由於在通常之使用狀態下尿以3 cc/sec以上20 cc/sec以下之速度排泄至中央區域S，故而僅靠中央區域S無法完全吸收，從而重要的是不僅於中央區域S中，而且於側部區域M中亦被瞬時地吸收。若存在於中央區域S、側部區域M之接合部之面積率不同，則所排泄之尿於各個部位中之吸收速度會產生偏差，起因於該情況，而難以均勻地、且高效率地利用吸收體整個面，從而變得易於發生滲漏。於本發明中，由於該部位之接合部之面積相同，故而可防止產生此種不良情況。又，藉由均勻地、且高效率地利用吸收體整個面，尿布內部之自由水(吸水性聚合物粒子並未保持之水分)減少，亦可抑制尿布之穿著中水分返回至肌膚。 以接合部之面積率於中央區域S與側部區域M大致相同為條件，中央區域S及側部區域M中之接合部之面積率較佳為10%以上，進而較佳為15%以上。又，接合部之面積率較佳為40%以下，更佳為35%以下。接合部之面積率較佳為10%以上40%以下，更佳為15%以上35%以下。藉由將面積率設定為該範圍，可在不降低正面片材2之肌膚觸感、吸收性能之情況下，充分地提高2片片材之接合強度。 於正面片材2中，於中央區域S與側部區域M中接合部之形狀及/或配置圖案不同，此外，每單位面積之接合部之個數係側部區域M多於中央區域S。將側部區域M之接合部之個數設為多於中央區域S有如下所述之優點(a)及(b)。 (a)正面片材2之構成纖維之自由度、即纖維之移動容易度係中央區域S高於側部區域M。其結果為，中央區域S之柔軟度提高。 (b)側部區域M中之凸部與凹部之間之高低差相對而言變低，且纖維之自由度降低。其結果為，變得不易發生起因於穿著者之腿之活動之側部區域中之正面片材2之破損。又，藉由將各側部區域M之接合部之個數設為多於中央區域S，亦產生如下優點，即，製造時之輥兩側部之振動變小，而顯著地改善加工性。例如，於第1片材與第2片材之貼合中變得不易產生空洞。又，可抑制用於貼合之輥產生磨耗或缺損。 於正面片材2中，在將形成於中央區域S之接合部S11、S12中之面積最大者之該面積設為C，將形成於側部區域M之接合部M11、M12中之面積最大者之該面積設為D時，較佳為具有C＞D之關係。藉由使形成於中央區域S之接合部之面積大於形成於側部區域M之接合部之面積，變得易於使形成於中央區域S之接合部之個數少於形成於側部區域M之接合部之個數。藉此，於穿著尿布1之狀態下，於中央區域S不易產生不規則之皺折。若產生不規則之皺折，則尿或糞便變得易於沿著皺折而流動，有時起因於該情況而變得易於發生滲漏。相對於此，藉由抑制皺折之產生，可抑制液體滲漏。 就進一步抑制皺折之產生之觀點而言，面積D較佳為面積C之80%以下，進而較佳為70%以下。又，面積D較佳為面積C之20%以上，進而較佳為30%以上。面積D較佳為面積C之20%以上80%以下，進而較佳為30%以上70%以下。 面積C之接合部之面積之總和於中央區域S之接合部之面積之總和中所占之比率較佳為20%以上，進而較佳為30%以上。該比率之上限較佳為80%，進而較佳為70%。另一方面，面積D之接合部之面積之總和於側部區域M之接合部之面積之總和中所占之比率較佳為80%以上，進而較佳為90%以上。該比率之上限較佳為100%。 於正面片材2中，在將形成於中央區域S之接合部S11、S12中之沿著縱向X之長度最長者之該長度設為E，將形成於側部區域M之接合部M11、M12中之沿著長度方向之長度最長者之該長度設為F時，較佳為具有E＞F之關係。藉此，於穿著尿布1之狀態下，因中央區域S自穿著者之大腿受到之向橫向內側之力而於該中央區域S產生皺折時，變得易於規則地產生該皺折。換言之，於中央區域S變得不易產生不規則之皺折。起因於該情況，而抑制了液體滲漏。 就使皺折之產生變得更規則之觀點而言，長度F較佳為長度E之80%以下，進而較佳為70%以下。又，長度F較佳為長度E之20%以上，進而較佳為30%以上。長度F較佳為長度E之20%以上80%以下，進而較佳為30%以上70%以下。 中央區域S之、長度E之接合部之面積之總和於接合部之面積之總和中所占之比率較佳為20%以上，進而較佳為30%以上。該比率之上限較佳為100%，進而較佳為80%。另一方面，側部區域M之、長度F之接合部之面積之總和於接合部之面積之總和中所占之比率較佳為60%以上，進而較佳為80%以上。該比率之上限較佳為100%，進而較佳為90%。 於正面片材2中，較佳為，側部區域M中之該片材2之剪切應力高於中央區域S中之該片材2之剪切應力。剪切應力係成為形成於中央區域S及側部區域M之凸部之柔軟度之指標者，意味著，剪切應力越小，凸部越柔軟。因此，相較於中央區域S中之剪切應力、側部區域M中之剪切應力更高意味著，中央區域S之凸部較側部區域更柔軟。藉此，可使作為對柔軟度最具有支配性之區域之中央區域S之凸部變得柔軟，可使尿布1之穿著感良好。 剪切應力係利用如下方法進行測定。 自測定對象之正面片材切取縱向長度50 mm及橫向長度30 mm之俯視矩形形狀而作為試片。其次，將與試片為相同形狀、相同尺寸之膠帶(日東電工(股)製造，商品名「No.500」)重疊於PET(Polyethylene Terephthalate，聚對苯二甲酸乙二酯)膜(STAR CORPORATION，商品名「Star OHP Film」)而製作積層體(A)，將試片之非凸部側重疊於該積層體(A)上之膠帶側而獲得積層體(B)，並使1 kg之滾筒於積層體(B)上往返5次，而使積層體(B)中之膠帶與試片壓接。又，準備可將試片整體被覆之形狀、尺寸之機械扣結件之公構件(3M(股)製造，商品名「1600PPI」)作為被黏著片，並使積層體(B)上之試片之凸部側經由該被黏著片上之刺毛材料而以1.5 kPa負荷壓接，從而獲得測定樣本。將該測定樣本安裝於拉伸試驗機((股)島津製作所製造之Autograph AG-X)之夾頭間(夾頭間距離150 mm)，而進行測定樣本之180度剝離。該180度剝離係藉由如下方式進行，即，將測定樣本之縱向一端之積層體(B)及另一端之被黏著片分別夾持於拉伸試驗機之夾頭，並向180度相反方向拉伸。拉伸速度係設為300 mm/min，記錄此時之拉伸負荷之最大值。測定部位係自一片尿布抽選尿布長度方向、腹部、背側×尿布短尺寸方向、左、右、中央之共計6個部位作為試片，對合計3片尿布進行測定，並將其等之平均值作為測定對象之正面片材之剪切應力(單位：N)。 中央區域S之剪切應力之值較佳為25 N以上，進而較佳為30 N以上。又，較佳為34 N以下，進而較佳為33 N以下。中央區域S之剪切應力之值較佳為25 N以上34 N以下，進而較佳為30 N以上33 N以下。另一方面，側部區域M之剪切應力之值以高於中央區域S之剪切應力為條件，較佳為33 N以上，進而較佳為35 N以上。又，較佳為45 N以下，進而較佳為40 N以下。側部區域M之剪切應力之值較佳為33 N以上45 N以下，進而較佳為35 N以上40 N以下。 為了使剪切應力之值於中央區域S與側部區域M不同，例如，只要使中央區域S之接合部圖案與側部區域M之接合部圖案不同，或者使各個接合部之強度不同即可。例如，於中央區域S存在凸部S21、S22，於側部區域M存在凸部M21(參照圖4)。此時，於將中央區域S中之凸部之面積最大者(於圖4中，為凸部S21)之面積設為Smax ，將側部區域M中之凸部之面積最大者(凸部M21)之面積設為Mmax 之情形時，重要的是滿足Smax ＞Mmax 之關係。藉由滿足該關係，與側部區域M相比，中央區域S之纖維自由度(移動容易度)相對而言變大，柔軟度變得更顯著。 如上所述之構成之正面片材2例如可依據日本專利特開2015-112343號公報中所記載之複合片材之製造方法而製造。具體而言，例如，藉由如下方法而獲得：將帶狀之第1片材供給至周面為相互嚙合之形狀之第1輥與第2輥之間，而使第1片材變形為凹凸形狀之後，使第1片材沿著第1輥之周面部而自嚙合部分移動之後，以重疊於第1片材之方式供給第2片材，並將兩片材於在第1輥中之凸部與加熱輥之間進行加熱之狀態下夾壓而使其等局部地接合，此時，使第1輥及第2輥之凹凸形狀、以及利用第1輥及加熱輥而形成之接合部之圖案於第1片材之中央部及側部不同。於使第1片材嚙合於第1輥與第2輥之嚙合部而變形為凹凸形狀時，較佳為朝向輥內部方向吸引第1片材，而促進第1片材變形為凹凸形狀。 構成正面片材2之第1片材及第2片材由片材材料構成。作為片材材料，例如，可使用不織布、織布及針織布等纖維片材、或膜等。就肌膚觸感等觀點而言，較佳為使用纖維片材，尤佳為使用不織布。構成第1片材與第2片材之片材材料之種類可相同，或者亦可不同，但就獲得牢固之密封強度之觀點而言，較佳為相同種類之片材。 於使用不織布作為構成第1片材及第2片材之片材材料之情形時，作為該不織布，例如，可列舉：熱風不織布、紡黏不織布、水刺不織布、熔噴不織布、樹脂黏合劑不織布、針刺不織布等。亦可使用將該等不織布組合2種以上而成之積層體、或將該等不織布與膜等組合而成之積層體。其等之中，較佳為使用熱風不織布或紡黏不織布。尤佳為，於穿著尿布1之狀態下位於與穿著者之肌膚對向之側之片材即第1片材包含熱風不織布。 作為構成第1片材及第2片材之片材材料而使用之不織布之基重分別獨立地較佳為10 g/m2 以上，更佳為15 g/m2 以上，又，較佳為40 g/m2 以下，更佳為35 g/m2 以下。不織布之基重較佳為10 g/m2 以上40 g/m2 以下，進而較佳為15 g/m2 以上35 g/m2 以下。 作為構成不織布之纖維，可使用各種包含熱塑性樹脂之纖維。作為熱塑性樹脂，可列舉：聚乙烯或聚丙烯等聚烯烴、聚對苯二甲酸乙二酯等聚酯、尼龍6或尼龍66等聚醯胺、聚丙烯酸、聚甲基丙烯酸烷基酯、聚氯乙烯、聚偏二氯乙烯等。該等樹脂可單獨使用1種或作為2種以上之摻合物而使用。又，可以芯鞘型或並列型等之複合纖維之形態使用。 尤佳為，於穿著尿布1之狀態下位於與穿著者之肌膚對向之側之片材即第1片材包含複數種纖維。尤其於第1片材為上下雙層結構之情形時，較佳為上層及下層中之任一層包含複數種纖維。藉此，因凸部產生之緩衝感較高，且凸部之平滑度提高。進而，凸部之立起性、或施加負荷時之凸部之不易塌陷性提高。 上述複數種纖維較佳為包含包括第1纖維及第2纖維之至少2種纖維。並且，第1纖維及第2纖維分別較佳為包含高熔點成分、及熔點低於該高熔點成分之低熔點成分者。於此情形時，第1纖維之高熔點成分與第2纖維之高熔點成分可為相同種類者，或者亦可為不同種類者。又，第1纖維之低熔點成分與第2纖維之低熔點成分可為相同種類者，或者亦可為不同種類者。第1纖維與第2纖維較佳為藉由直徑比不同而區分者。於本說明書中，直徑比係第1纖維及第2纖維各自之高熔點成分之直徑與低熔點成分之直徑(μm)之比率。高熔點成分之直徑及低熔點成分之直徑係指：例如於第1及第2纖維為芯鞘型複合纖維，且鞘樹脂包含低熔點成分，芯樹脂包含高熔點成分之情形時，圖5所示之D1為低熔點成分C1之直徑，D2為高熔點成分C2之直徑。並且，第X纖維之高熔點成分C2與低熔點成分C1之直徑比AX係由下式算出。此處，「相同種類之熱熔性纖維」係指構成纖維之樹脂相同且結構亦相同者。例如，於包含高熔點成分及低熔點成分之芯鞘複合纖維為2根之情形時，於該等2根纖維所具有之高熔點成分及低熔點成分分別為同一樹脂，且芯鞘之直徑比相同時，該等2根纖維為相同種類之熱熔性纖維。另一方面，即便高熔點成分及低熔點成分分別為同一樹脂，於直徑比不同之情形時，亦為不同種類之熱熔性纖維。又，「包含複數種纖維」係指包含不同種類之熱熔性纖維。 第X纖維之直徑比AX＝第X纖維之低熔點成分直徑D1(μm)÷第X纖維之高熔點成分直徑D2(μm) 於本發明中，如上所述，較佳為使第1纖維之直徑比A1與第2纖維之直徑比A2不同。A2相對於A1之比率即A2/A1之值較佳為未達1，進而較佳為0.99以下，更佳為0.91以下。又，A2/A1之值較佳為0.5以上，進而較佳為0.6以上，更佳為0.7以上。藉由以此方式設定A1與A2之比率，因凸部產生之緩衝感進一步提高，且凸部之平滑度進一步提高。進而，凸部之立起性、或施加負荷時之凸部之不易塌陷性進一步提高。例如，A2/A1之值較佳為0.5以上且未達1，進而較佳為0.6以上0.99以下，更佳為0.7以上0.91以下。 第1纖維之直徑比A1與第2纖維之直徑比A2之比率為如上所述時，第1纖維之直徑比A1其本身之值較佳為1.1以上，進而較佳為1.2以上，更佳為1.3以上。又，較佳為2.0以下，進而較佳為1.9以下，更佳為1.8以下。具體而言，第1纖維之直徑比A1其本身之值較佳為1.1以上2.0以下，進而較佳為1.2以上1.9以下，更佳為1.3以上1.8以下。 另一方面，第2纖維之直徑比A2其本身之值以小於A1為條件，較佳為1.1以上，進而較佳為1.2以上，更佳為1.3以上。又，較佳為2.0以下，進而較佳為1.9以下，更佳為1.8以下。具體而言，第2纖維之直徑比A2其本身之值較佳為1.1以上2.0以下，進而較佳為1.2以上1.9以下，更佳為1.3以上1.8以下。 圖6(a)及圖6(b)表示正面片材2之另一實施形態。圖6(a)所示之實施形態之正面片材2中之中央區域S具有呈互不相同之形狀之接合部S11及S12。接合部S11沿著縱向X以特定間隔配置而形成第1接合部行S31。又，接合部S12亦沿著縱向X以特定間隔配置而形成第2接合部行S32。並且，2行第1接合部行S31及1行第2接合部行S32成為一組，該組於橫向Y反覆配置。 另一方面，側部區域M僅具有1種接合部即接合部M11。接合部M11沿著縱向X以特定間隔配置而形成第4接合部行M31。又，接合部M11沿著縱向X以特定間隔配置而形成第5接合部行M32。於第4接合部行M31與第5接合部行M32，沿著縱向X之接合部11之間距不同，第5接合部行M32中之間距大於第4接合部行M31中之間距。 圖6(b)所示之實施形態之正面片材2中之中央區域S具有呈互不相同之形狀之接合部S11及S12。接合部S11沿著縱向X以特定間隔配置而形成第1接合部行S31。又，接合部S11沿著縱向X以特定間隔配置而形成第2接合部行S32。第1接合部行S31與第2接合部行S32係沿著縱向X之接合部S11之間距相同，但相位錯開半個間距。另一方面，接合部S12沿著縱向X以特定間隔配置而形成第3接合部行S33。於中央區域S中，第1接合部行S31、第3接合部行S33、第1接合部行S31、第3接合部行S33、第2接合部行S32、及第3接合部行S33依序排列於橫向Y而其等成為一組，該組於橫向Y反覆配置。 另一方面，側部區域M僅具有1種接合部即接合部M11。接合部M11沿著縱向X以特定間隔配置而形成第4接合部行M31。又，接合部M11沿著縱向X以特定間隔配置而形成第5接合部行M32。於第4接合部行M31與第5接合部行M32，沿著縱向X之接合部11之間距相同，但相位錯開半個間距。 於使用以上之圖6(a)及圖6(b)所示之實施形態之正面片材2之情形時，接合部之面積率亦較佳為於中央區域S與側部區域M大致相同，又，每單位面積之接合部之個數亦較佳為側部區域M多於中央區域S。藉此，正面片材2呈現出良好之質感，且於2片片材間不易產生剝離或隆起。 以上，對於本發明，基於其較佳之實施形態而進行了說明，但本發明並不受到上述實施形態限制。例如，上述實施形態係將本發明之吸收性物品應用於展開型之拋棄式尿布之例，但本發明亦可應用於其他拋棄式尿布，例如短褲型拋棄式尿布。進而，本發明亦可同樣地應用於除拋棄式尿布以外之吸收性物品，例如經期衛生棉或失禁護墊等。 關於上述實施形態，本發明進而揭示以下之吸收性物品。 ＜1＞ 一種吸收性物品，其係具備正面片材、背面片材及配置於該等兩片材間之吸收體者，且 上述正面片材包含第1片材與第2片材之積層體， 上述積層體具有複數個因第1片材與第2片材之局部接合所產生之接合部，第1片材於除上述接合部以外之部位向遠離第2片材之方向突出，而形成朝向穿著者之身體突出之複數個凸部， 上述正面片材具有位於寬度方向之中央部且於長度方向延伸之中央區域、及與該中央區域相鄰且於長度方向延伸之一對側部區域， 上述接合部之形狀及/或配置圖案於中央區域與側部區域不同， 上述接合部之面積率於中央區域與側部區域大致相同， 每單位面積之上述接合部之個數係側部區域多於中央區域。 ＜2＞ 如上述＜1＞之吸收性物品，其中於上述正面片材中，在將形成於中央區域之上述接合部中之面積最大者之該面積設為C，將形成於側部區域之上述接合部中之面積最大者之該面積設為D時，具有C＞D之關係。 ＜3＞ 如上述＜1＞或＜2＞之吸收性物品，其中於上述正面片材中，在將形成於中央區域之上述接合部中之沿著長度方向之長度最長者之該長度設為E，將形成於側部區域之上述接合部中之沿著長度方向之長度最長者之該長度設為F時，具有E＞F之關係。 ＜4＞ 如上述＜1＞至＜3＞中任一項之吸收性物品，其中關於上述正面片材，側部區域中之該片材之剪切應力高於中央區域中之該片材之剪切應力。 ＜5＞ 如上述＜1＞至＜4＞中任一項之吸收性物品，其具有穿著時配置於穿著者之腹側之腹側部、配置於背側之背側部、及位於其等之間之胯下部， 上述中央區域及上述側部區域至少形成於上述胯下部。 ＜6＞ 如上述＜1＞至＜5＞中任一項之吸收性物品，其具有穿著時配置於穿著者之腹側之腹側部、配置於背側之背側部、及位於其等之間之胯下部， 上述中央區域及上述側部區域較佳為自上述胯下部遍及至上述腹側部及上述背側部之任一者或兩者而形成，更佳為遍及上述吸收體之全長而形成，進而更佳為遍及吸收性物品之全長而形成。 ＜7＞ 如上述＜1＞至＜6＞中任一項之吸收性物品，其中上述中央區域之寬度相對於上述正面片材之寬度較佳為30%以上，進而較佳為40%以上，較佳為70%以下，進而較佳為60%以下。 ＜8＞ 如上述＜1＞至＜7＞中任一項之吸收性物品，其中上述側部區域之寬度相對於上述正面片材之寬度較佳為15%以上35%以下，進而較佳為20%以上30%以下。 ＜9＞ 如上述＜1＞至＜8＞中任一項之吸收性物品，其中上述側部區域之寬度之總和相對於上述正面片材之寬度較佳為30%以上，進而較佳為40%以上，較佳為70%以下，進而較佳為60%以下。 ＜10＞ 如上述＜1＞至＜9＞中任一項之吸收性物品，其中上述正面片材於上述中央區域及上述側部區域之任一者中，均係上述第2片材側之面大致平坦，且於上述第1片材側形成有起伏較大之凹凸。 ＜11＞ 如上述＜1＞至＜10＞中任一項之吸收性物品，其具有相當於穿著者之前後方向之縱向、及與該縱向正交之橫向， 於上述正面片材之上述中央區域中，形成有2種接合部，該2種接合部在均呈具有沿著上述縱向及上述橫向之邊之矩形之方面而言一致，但呈互不相同之形狀。 ＜12＞ 如上述＜1＞至＜11＞中任一項之吸收性物品，其具有相當於穿著者之前後方向之縱向、及與該縱向正交之橫向， 於上述正面片材之上述中央區域中，形成有沿著上述縱向並隔開特定之距離而配置為行狀之2種接合部， 一種接合部形成第1接合部行，另一種接合部形成交替地配置於相鄰之上述第1接合部行之間之第2接合部行及第3接合部行， 上述第2接合部行與上述第3接合部行係沿著上述縱向之上述另一種接合部之間距相同，且相位錯開半個間距。 ＜13＞ 如上述＜1＞至＜12＞中任一項之吸收性物品，其具有相當於穿著者之前後方向之縱向、及與該縱向正交之橫向， 於上述中央區域形成有2種凸部， 一種凸部呈沿著上述橫向之長度長於沿著上述縱向之長度之大致橢圓形之俯視形狀，另一種凸部呈沿著上述橫向之長度與沿著上述縱向之長度大致相同之大致圓形之俯視形狀。 ＜14＞ 如上述＜1＞至＜13＞中任一項之吸收性物品，其具有相當於穿著者之前後方向之縱向、及與該縱向正交之橫向， 於上述側部區域，形成有2種接合部，該2種接合部在均呈具有沿著上述縱向及上述橫向之邊之矩形之方面而言一致，但呈互不相同之形狀。 ＜15＞ 如上述＜1＞至＜14＞中任一項之吸收性物品，其具有相當於穿著者之前後方向之縱向、及與該縱向正交之橫向， 於上述側部區域，形成有沿著上述縱向並隔開特定之距離而配置為行狀之2種接合部， 一種接合部形成第4接合部行， 另一種接合部形成與上述第4接合部行交替地配置於上述橫向之第5接合部行， 上述第4接合部行中之上述一種接合部之間距與上述第5接合部行中之上述另一種接合部之間距均相同，於上述第4接合部行與上述第5接合部行，上述接合部之配置錯開半個間距。 ＜16＞ 如上述＜1＞至＜15＞中任一項之吸收性物品，其中於上述中央區域形成有2種凸部， 上述2種凸部為不同之高度。 ＜17＞ 如上述＜1＞至＜16＞中任一項之吸收性物品，其中相較於配置於上述中央區域之上述凸部之高度，配置於上述側部區域之上述凸部更低，或者兩者之高度相同。 ＜18＞ 如上述＜1＞至＜17＞中任一項之吸收性物品，其中於上述中央區域與上述側部區域，上述接合部之配置圖案不同，且該接合部之形狀亦不同。 ＜19＞ 如上述＜1＞至＜18＞中任一項之吸收性物品，其中上述中央區域及上述側部區域中之上述接合部之面積率較佳為10%以上，進而較佳為15%以上，較佳為40%以下，更佳為35%以下。 ＜20＞ 如上述＜1＞至＜19＞中任一項之吸收性物品，其中在將形成於上述側部區域之接合部之中之面積最大者之面積設為C，將形成於上述中央區域之接合部之中之面積最大者之面積設為D之情形時， 面積D較佳為面積C之80%以下，進而較佳為70%以下，較佳為20%以上，進而較佳為30%以上。 ＜21＞ 如上述＜1＞至＜20＞中任一項之吸收性物品，其中在將形成於上述側部區域之接合部之中之面積最大者之面積設為C，將形成於上述中央區域之接合部之中之面積最大者之面積設為D之情形時， 上述面積C之接合部之面積之總和於上述中央區域之接合部之面積之總和中所占之比率較佳為20%以上，進而較佳為30%以上，該比率之上限較佳為80%，進而較佳為70%。 ＜22＞ 如上述＜1＞至＜21＞中任一項之吸收性物品，其中在將形成於上述側部區域之接合部之中之面積最大者之面積設為C，將形成於上述中央區域之接合部之中之面積最大者之面積設為D之情形時， 上述面積D之接合部之面積之總和於上述側部區域之接合部之面積之總和中所占之比率較佳為80%以上，進而較佳為90%以上，該比率之上限較佳為100%。 ＜23＞ 如上述＜1＞至＜22＞中任一項之吸收性物品，其具有相當於穿著者之前後方向之縱向、及與該縱向正交之橫向， 在將形成於上述中央區域之接合部中之沿著上述縱向之長度最長者之長度設為E，將形成於上述側部區域之接合部中之沿著上述長度方向之長度最長者之長度設為F時， 上述長度F較佳為上述長度E之80%以下，進而較佳為70%以下，較佳為20%以上，進而較佳為30%以上。 ＜24＞ 如上述＜1＞至＜23＞中任一項之吸收性物品，其中在將形成於上述中央區域之接合部中之沿著上述縱向之長度最長者之長度設為E，將形成於上述側部區域之接合部中之沿著上述長度方向之長度最長者之長度設為F時， 上述中央區域之、上述長度E之接合部之面積之總和於接合部之面積之總和中所占之比率較佳為20%以上，進而較佳為30%以上，該比率之上限較佳為100%，進而較佳為80%。 ＜25＞ 如上述＜1＞至＜24＞中任一項之吸收性物品，其中在將形成於上述中央區域之接合部中之沿著上述縱向之長度最長者之長度設為E，將形成於上述側部區域之接合部中之沿著上述長度方向之長度最長者之長度設為F時， 上述側部區域之、上述長度F之接合部之面積之總和於接合部之面積之總和中所占之比率較佳為60%以上，進而較佳為80%以上，該比率之上限較佳為100%，進而較佳為90%。 ＜26＞ 如上述＜1＞至＜25＞中任一項之吸收性物品，其中上述中央區域之剪切應力之值較佳為25 N以上，進而較佳為30 N以上，較佳為34 N以下，進而較佳為33 N以下。 ＜27＞ 如上述＜1＞至＜26＞中任一項之吸收性物品，其中上述側部區域之剪切應力之值以高於上述中央區域之剪切應力為條件，較佳為33 N以上，進而較佳為35 N以上，較佳為45 N以下，進而較佳為40 N以下。 ＜28＞ 如上述＜1＞至＜27＞中任一項之吸收性物品，其中在將上述中央區域中之上述凸部之面積最大者之面積設為Smax ，將上述側部區域中之上述凸部之面積最大者之面積設為Mmax 之情形時，滿足Smax ＞Mmax 之關係。 ＜29＞ 如上述＜1＞至＜26＞中任一項之吸收性物品，其中作為構成上述第1片材及上述第2片材之片材材料而使用之不織布之基重較佳為10 g/m2 以上，更佳為15 g/m2 以上，又，較佳為40 g/m2 以下，更佳為35 g/m2 以下。 實施例 以下，藉由實施例，對本發明進一步詳細地進行說明。然而，本發明之範圍並不受到該實施例限制。只要並未特別提及，則「%」係指「質量%」。 [實施例1] 將花王股份有限公司製造之拋棄式尿布「Merries」(註冊商標，2015年製造)之正面片材去除，並配置圖3及圖4所示之正面片材代替該正面片材，而獲得拋棄式尿布。圖3及圖4所示之正面片材中之接合部之尺寸係如下所示般設定。S11：1 mm×4 mm，S12：1 mm×1 mm，M11：1 mm×4 mm，M12：1 mm×3 mm(全部為矩形) 又，構成正面片材之第1片材、即位於穿著者之肌膚對向面之片材包含熱風不織布(基重18 g/m2 )。第2片材亦包含熱風不織布(基重18 g/m2 )。構成第1片材之熱風不織布包含上層及下層之雙層結構，上層包含聚對苯二甲酸乙二酯/聚乙烯之芯鞘型複合纖維(樹脂質量比5/5，2.3 dtex，芯鞘直徑比1.57)。下層包含聚乙烯/聚對苯二甲酸乙二酯之芯鞘型複合纖維(樹脂質量比5/5，2.3 dtex，芯鞘直徑比1.57)與聚丙烯/低熔點聚丙烯之芯鞘型複合纖維(樹脂質量比5/5，2.2 dtex，芯鞘直徑比1.42)之質量比為5：5之混棉。構成第2片材之熱風不織布包含聚對苯二甲酸乙二酯/聚乙烯之芯鞘型複合纖維(樹脂質量比5/5，2.3 dtex)。 [實施例2] 於實施例1中，使用圖6(a)所示者作為正面片材。除此以外，以與實施例1同樣之方式獲得拋棄式尿布。圖6(a)所示之正面片材中之接合部之尺寸係如下所示般設定。S11：1 mm×2 mm，S12：1 mm×1 mm，M11：1 mm×1 mm(全部為矩形) [實施例3] 於實施例1中，使用圖6(b)所示者作為正面片材。除此以外，以與實施例1同樣之方式獲得拋棄式尿布。圖6(b)所示之正面片材中之接合部之尺寸係如下所示般設定。S11：1 mm×3 mm，S12：1 mm×1 mm，M11：1 mm×1 mm(全部為矩形) [比較例1] 於實施例1中，使用僅實施例1中所使用之正面片材中之側部區域之接合部形成於整個區域者作為正面片材。除此以外，以與實施例1同樣之方式獲得拋棄式尿布。 [評價] 對於實施例及比較例中所獲得之拋棄式尿布，利用以下之方法對正面片材之質感、及正面片材之片材間之剝離之程度進行評價。將其結果示於以下之表1中。 [正面片材之柔軟度] 有使用尿布之幼兒之母親10名 關於各尿布，根據以下之基準對表面材料之柔軟度進行評價。將所獲得之結果示於表1中。 首先，使10名母親觸摸花王股份有限公司製造之拋棄式尿布「Merries」(註冊商標，2015年製造)之正面片材，以其為基準(3分)，以1分(柔軟)、2分(稍柔軟)、3分(與Merries同等)、4分(稍不柔軟)、5分(不柔軟)之5個等級進行評價，根據10名母親之平均值而對柔軟度進行評價。 [正面片材之片材間之剝離之程度] 將丙烯酸系樹脂板放置於樣本，假定嬰幼兒坐下時之壓力，以成為3.5 KPa之壓力之方式施加負荷，以行程長＝10 cm使丙烯酸系樹脂板移動特定次數，並藉由目視對剝離之程度進行評價。將花王股份有限公司製造之拋棄式尿布「Merries」(註冊商標，2015年製造)之正面片材之剝離之程度設為“中”，將剝離之程度低於其者設為“小”，將剝離之程度高於其者設為“大”。 [表1] 如由表1所示之結果明確得知，實施例之尿布與比較例之尿布相比，正面片材之質感良好，且不易產生片材間之剝離。 [產業上之可利用性] 根據本發明，提供一種具備包含呈現出良好之質感且於2片片材間不易產生剝離或隆起之積層體之正面片材之吸收性物品。The present invention relates to an improvement of a front sheet of an absorbent article comprising a laminate of two sheets, and more particularly to a front surface having a texture which exhibits a good texture and which is not easily peeled or embossed between two sheets. Absorbent articles for sheets. Hereinafter, the absorbent article of the present invention will be described based on preferred embodiments thereof with reference to the drawings. Fig. 1 and Fig. 2 show a disposable diaper 1 according to an embodiment of the absorbent article of the present invention. The diaper 1 has a ventral side portion 1F disposed on the ventral side of the wearer when worn, a back side portion 1R disposed on the back side, and a crotch portion 1M positioned therebetween. The diaper 1 has a longitudinal direction X extending from the front side portion 1F to the back side portion 1R via the crotch portion 1M, and corresponds to the longitudinal direction X of the wearer in the front-rear direction and the transverse direction Y orthogonal thereto. The abdominal side portion 1F, the crotch portion 1M, and the back side portion 1R correspond to respective regions in the case where the diaper 1 is divided into three equal portions in the longitudinal direction X. The crotch portion 1M has an excretion portion opposing portion that is disposed opposite to the excretion portion of the wearer when the diaper 1 is worn, and the excretion portion opposing portion is usually located at or near a central portion of the longitudinal direction X of the diaper 1. As shown in Fig. 1 and Fig. 2, the diaper 1 includes an absorbent body 4 having an absorbent core 40, and a liquid-permeable front sheet 2 disposed on the skin facing side of the absorbent body 4, and The back sheet 3 which is in contact with the skin of the wearer when worn and which is liquid-impermeable or water-repellent is disposed on the non-skin facing side of the absorbent body 4. In the plan view as shown in Fig. 1, the diaper 1 is formed into an hourglass shape which is contracted inward in the central portion of the longitudinal direction X of the crotch portion 1M and which is long in one direction, that is, in the longitudinal direction X. The top sheet 2 has substantially the same size as the absorbent body 4 or has a size slightly larger than that of the absorbent body 4. The back sheet 3 has a size larger than that of the absorber 4. Further, the back sheet 3 has a size larger than that of the front sheet 2. The back sheet 3 is extended outward from the periphery of the absorber 4 to form an outer shape of the diaper 1 which is unfolded and stretched as shown in FIG. As the back sheet 3, various sheets previously used for such an absorbent article can be used without particular limitation, and a resin film, a laminate of a resin film and a nonwoven fabric, or the like can be used. The back sheet 3 may have gas permeability. In the present specification, the "skin facing surface" is an absorbent article or a constituent member thereof (for example, the absorbent body 4) that faces the skin side of the wearer when the absorbent article is worn, that is, relatively close to the wearer's skin. On the side closer. The "non-skin opposing surface" is the side of the absorbent article or the constituent member that faces the side opposite to the skin side when wearing the absorbent article, that is, the side that is relatively farther from the wearer's skin. As used herein, "when worn" refers to a state in which the usual proper wearing position, that is, the correct wearing position of the absorbent article, is maintained, and does not include the state in which the absorbent article is in a state of being deviated from the wearing position. The side sheets 5 are disposed on the left and right sides of the longitudinal direction X on the side of the front sheet 2 of the diaper 1, respectively. The side sheet 5 has an inner edge portion along the longitudinal direction X and a lateral edge portion which is located further to the lateral direction Y than the inner edge portion and along the outer side of the longitudinal direction X, as viewed in a plan view as shown in FIG. The edge portion overlaps with the absorber 4, and as shown in FIG. 2, the outer edge portion is extended from the side edge of the absorber 4 along the longitudinal direction X toward the outer side of the lateral direction Y to be joined to the back sheet 3. Between the side sheet 5 and the back sheet 3 disposed in the left and right leg portions around the leg portion of the wearer, the linear elastic member 50 is fixed in an extended state along the longitudinal direction X. Thereby, a pair of leg pleats are formed by the contraction of the elastic member 50 in the leg portion when the diaper 1 is worn. Further, at the inner edge portion of the side sheet 5, the linear elastic member 51 is fixed in an extended state along the longitudinal direction X, whereby when the diaper 1 is worn, at least the lower part of the crotch is contracted by the elastic member 51. 1M, the side sheet 5 starts from the joint portion with the back sheet 3, and the inner edge portion side stands up toward the skin side of the wearer to form a leak-proof cuff. The leak-proof cuff prevents the discharge of urine or the like to the outside of the lateral direction Y, that is, the so-called side leakage. The front sheet 2, the back sheet 3, the absorber 4, the side sheets 5, and the elastic members 50 and 51 are joined to each other by a known joining method such as a hot-melt adhesive. The diaper 1 is a so-called unfolded disposable diaper. As shown in Fig. 1, a pair of fastening tapes 6, 6 are provided on both side edges of the back side portion 1R of the diaper 1 along the longitudinal direction X. A fixing portion (not shown) of the male member including the mechanical surface fastener is attached to the fastening tape 6. Further, in the non-skin opposing surface of the front side portion 1F of the diaper 1, a fixed region 7 of a female member including a mechanical surface fastener is formed. In the fixed region 7 , the female member of the mechanical face fastening member is joined and fixed to the non-skin of the back sheet 3 forming the non-skin opposing surface of the abdominal portion 1F by a known bonding method, for example, an adhesive or heat sealing. The facing portion is formed so that the fixing portion of the fastening tape 6 can be detachably fixed. In the plan view as shown in FIG. 1, the absorber 4 is formed in a shape elongated in the longitudinal direction X, and extends from the abdominal side portion 1F to the back side portion 1R. The absorber 4 is composed of a liquid-retaining absorbent core 40 containing an absorbent material, and a core material 45 covering the skin facing surface 40a and the non-skin opposing surface 40b of the absorbent core 40. The absorbent core 40 and the core sheet 45 are joined by a known joining means such as a hot-melt adhesive. The absorbent body 4 (absorbent core 40) is formed symmetrically with respect to an imaginary straight line (not shown) which divides the diaper 1 into two parts in the lateral direction Y and extends in the longitudinal direction X. The absorbent core 40 can be a single layer structure. Alternatively, the absorbent core 40 can be a multi-layer structure. In the plan view as shown in FIG. 1, the absorbent core 40 is formed in an hourglass shape in which the longitudinal direction, that is, the central portion of the longitudinal direction X is contracted inward. The absorbent core 40 is formed by stacking a core forming material containing an absorbent material. The absorbent material can be used as a material for forming such an absorbent core, and a hydrophilic fiber such as a wood pulp or a hydrophilizing agent-treated synthetic fiber or water absorbing property can be used. Polymer particles. In other words, the absorbent core 40 may be a fiber deposit of hydrophilic fibers or a fibrous deposit in which the fibrous deposits are loaded. As the packaged core material 45, a water permeable sheet can be used. As the packaged core material 45, for example, paper, non-woven fabric, or the like can be used. In the diaper 1 of the present embodiment, the packaged core material 45 is a continuous package of the core material 45 having a width of twice or more and three times the length of the lateral direction Y of the absorbent core 40, as shown in FIG. The one piece of the packaged core material 45 covers the entire area of the skin facing surface 40a of the absorbent core 40, and extends from the both sides of the longitudinal direction X of the absorbent core 40 to the outer side of the lateral direction Y. The upper portion is wound down below the absorbent core 40 and the entire area of the non-skin facing surface 40b of the absorbent core 40 is covered. However, the form of the packaged core material 45 is not limited thereto, and may be, for example, a skin-side packaged core material that covers the skin facing surface 40a of the absorbent core 40, and a non-skin that absorbs the absorbent core 40. The non-skin side-packed core material coated on the facing surface 40b, and each of the two sheets is a separate individual sheet. As shown in FIG. 3, the front sheet 2 disposed on the skin facing surface 40a side of the absorbent body 4 has a central region S and a pair of side regions M and M located on both sides of the central region S. The central portion S is located at the central portion of the width direction of the diaper 1 (i.e., the lateral direction Y) and extends along the longitudinal direction of the diaper 1 (i.e., the longitudinal direction X). The pair of side regions M, M are adjacent to the central region S and extend along the length direction of the diaper 1 (i.e., the longitudinal direction X). The central region S and the side region M are preferably formed at least in the crotch portion 1M, and are preferably formed from the crotch portion 1M to any one or both of the ventral portion 1F and the back side portion 1R, preferably It is formed throughout the entire length of the absorbent body 4, and more preferably formed over the entire length of the diaper 1. The central region S and the side region M can be distinguished according to the shape and/or arrangement pattern of the joints described below. The width of the central portion S is preferably 30% or more, and more preferably 40% or more, with respect to the width of the front sheet 2. Further, it is preferably 70% or less, and more preferably 60% or less. Further, the width of the central region S is preferably 30% or more and 70% or less with respect to the width of the front sheet 2, and more preferably 40% or more and 60% or less. The width of the side portion M is preferably 15% or more, and more preferably 20% or more, with respect to the width of the front sheet 2. Further, it is preferably 35% or less, and more preferably 30% or less. Further, the width of the side portion region M is preferably 15% or more and 35% or less with respect to the width of the front sheet 2, and more preferably 20% or more and 30% or less. On the other hand, the sum of the widths of the side regions M is preferably 30% or more, and more preferably 40% or more, with respect to the width of the front sheet 2. Further, it is preferably 70% or less, and more preferably 60% or less. Further, the total width of the side portion regions M is preferably 30% or more and 70% or less with respect to the width of the front sheet 2, and more preferably 40% or more and 60% or less. The front sheet 2 includes a laminate of the first sheet and the second sheet. The first sheet is placed on the body side of the wearer in a state where the diaper 1 is worn. The second sheet is located on the side of the absorber 4. As shown in FIG. 4 which is an enlarged view of the main part of FIG. 3, the front sheet 2 is the first sheet and the second sheet which are laminated in any of the central portion S and the side portion M. A plurality of joint portions M11, M12, S11, and S12 are formed by embossing or ultrasonic processing, and the first sheet is separated from the joint portions M11, M12, S11, and S12. The direction of the two sheets protrudes to form convex portions M21, S21, and S22 that protrude toward the skin side of the wearer. In the front sheet 2 and the side portion M, the surface of the front sheet 2 is substantially flat on the second sheet side, and irregularities having large undulations are formed on the first sheet side. In the central region S of the front sheet 2, two kinds of joint portions S11 and S12 are formed. The joint portions S11 and S12 are identical in that they each have a rectangular shape along the sides of the longitudinal direction X and the lateral direction Y, but have mutually different shapes. The joint portion S11 is arranged in a row shape along the longitudinal direction X with a predetermined distance therebetween, thereby forming the first joint portion row S31. The joint portion S12 is also arranged in a line shape along the longitudinal direction X with a predetermined distance therebetween, thereby forming the second joint portion row S32 and the third joint portion row S33. The second joint portion row S32 and the third joint portion row S33 are alternately arranged between the adjacent first joint portion rows S31. The distance between the second joint portion row S32 and the third joint portion row S33 along the joint portion S12 in the longitudinal direction X is the same, and the phase is shifted by a half pitch. By arranging the joint portions S11 and S12 in this manner, the convex portions S21 and S22 are formed in the center region S. The convex portion S21 has a substantially elliptical top view shape in which the length in the lateral direction Y is longer than the length in the longitudinal direction X. The convex portion S22 has a substantially circular plan view shape along the length of the lateral direction Y and substantially the same length along the longitudinal direction X. When the front sheet 2 is viewed along the longitudinal direction X, a first convex portion row S34 in which the convex portion S21 and the convex portion S22 are alternately arranged along the longitudinal direction X is formed in the central portion S. The first convex portion row S34 is located at the same position as the second joint portion row S32. Moreover, when the front sheet 2 is observed along the longitudinal direction X, the second convex portion row S35 in which only the convex portion S22 is disposed along the longitudinal direction X is formed in the central region S. The second convex portion row S35 is located at the same position as the third joint portion row S33. The "roughly elliptical" concept consists of a complete ellipse and an oblong shape. The "substantially circular shape along the length of the lateral direction Y and substantially the same length along the longitudinal direction X" includes the following two: a completely circular shape, and a length along the longitudinal direction X is ±10% with respect to the length along the lateral direction Y. The ellipse in the case of the range. In the side region M of the front sheet 2, two kinds of joint portions M11 and M12 are formed. The joint portions M11 and M12 are identical in that they each have a rectangular shape along the sides of the longitudinal direction X and the lateral direction Y, but have mutually different shapes. The joint portion M11 is arranged in a row shape along the longitudinal direction X with a predetermined distance therebetween, thereby forming the fourth joint portion row M31. The joint portion M12 is also arranged in a line shape along the longitudinal direction X with a predetermined distance therebetween, thereby forming the fifth joint portion row M32. The fourth joint portion row M31 and the fifth joint portion row M32 are alternately arranged in the lateral direction Y. The distance between the joint portions M11 in the fourth joint portion row M31 and the joint portion M12 in the fifth joint portion row M32 are the same. Further, in the fourth joint portion row M31 and the fifth joint portion row M32, the arrangement of the joint portions M11 and M12 is shifted by a half pitch. As a result, in the side region M, only one type of convex portion, that is, the convex portion M21 is formed. The convex portion M21 is formed in a region surrounded by four joint portions M11 adjacent in the longitudinal direction X and four joint portions surrounded by two joint portions M12 adjacent in the lateral direction Y. The convex portion M21 has a substantially circular plan view shape in which the length in the lateral direction Y is substantially the same as the length along the longitudinal direction X. When the front sheet 2 is viewed along the lateral direction Y, the third convex portion row M33 and the fourth convex portion row M34 in which the convex portion M21 is arranged along the lateral direction Y are formed in the side portion region M. In the third convex portion row M33 and the fourth convex portion row M34, the distance between the convex portions M21 is the same, and the arrangement of the convex portions M21 is shifted by a half pitch. The convex portion S21 and the convex portion S22 formed in the central region S may have the same height or may be different, but are preferably different in height from the viewpoint of improving the appearance and the touch. When the heights of the two convex portions S21 and S22 are different, the convex portion S21 may be higher than the convex portion S22, or conversely, the convex portion S22 may be higher than the convex portion S21. By setting the two types of convex portions to different heights, when the part is touched with a finger, the parts with different touch feelings alternately appear, and the feeling is better than that of the one type of convex part having the same height. The texture. Further, when the excreted urine flows along the surface of the front sheet 2, the resistance of the urine from the lower convex portion to the higher convex portion becomes larger, whereby the urine becomes less likely to flow, and can be reduced. leakage. Regarding the convex portion M21 formed in the side region M, the height of the convex portion M21 may be the same as or different from the convex portion S21 and the convex portion S22. For example, the height of the convex portion M21 may be the same as either of the convex portion S21 and the convex portion S22, or may be the same as or different from the convex portion S21 and the convex portion S22. The side region M is liable to cause the bulging of the front sheet 2 due to the movement of the wearer's leg. Therefore, from the viewpoint of suppressing the bulging of the front sheet 2, the convex portion M21 disposed in the side portion M is preferably composed of one type of convex portion. Moreover, it is preferable that the height of the convex portion M21 disposed in the side portion region M is lower than the height of the convex portions S21 and S22 disposed in the central region S where the texture is more important, or the heights of the two are the same. In the front sheet 2, the shapes and/or arrangement patterns of the joint portions S11, S12, M11, and M12 are different from the side regions M in the central portion S. That is, at least one of the shape or the arrangement pattern of the joint portions S11, S12, M11, and M12 is different from the side region M in the center region S. Specifically, in the central region S and the side region M, either of the following cases: (i) the arrangement pattern of the joint portions is the same, but the shape of the joint portion is different; or (ii) the shape of the joint portion is the same, However, the arrangement pattern of the joint portions is different; or (iii) the arrangement pattern of the joint portions is different, and the shape of the joint portion is also different. Since such a difference is set between the central region S and the side region M, the contact between the front sheet 2 and the skin of the wearer can be appropriately controlled, and the appearance can be largely changed, but it is preferable that the shape and arrangement pattern of the joint portion are different. . In the embodiment shown in FIG. 3 and FIG. 4, in the central region S and the side region M, the arrangement patterns of the joint portions S11, S12, M11, and M12 are different, and the shapes of the joint portions S11, S12, M11, and M12 are also different. In the front sheet 2, the shape and/or the arrangement pattern of the joint portion are different between the central portion S and the side portion region M, and the area ratio of the joint portion is substantially the same as the central portion S and the side portion region M. The area ratio (%) of the joint portion is in each of the central portion S and the side portion region M, and the sum of the areas of the joint portions occupied by the specific area is divided by the specific area and further multiplied by 100. value. The area ratio of the joint portion is substantially the same, including the case where the area ratio of the joint portion is the same in the central portion S and the side portion region M, and the area ratio of the side portion region M is ±15% with respect to the area ratio of the central portion S. The situation within the scope. In other words, when the area ratio of the central region S is A%, and the area ratio of the side region M is 0.85 A% or more and 1.15 A% or less, the area ratios of the central region S and the side region M are substantially the same. . Since the area ratio of the joint portion is substantially the same as the side portion region M in the central portion S, there is an advantage that the first sheet and the second sheet constituting the front sheet 2 are changed in a state in which the diaper 1 is worn. It is not easy to peel off. In addition, when the first sheet and the second sheet are bonded together to produce the front sheet 2, the pressure fluctuation during the rotation of the roll is reduced, and the width direction of the roll can be made. The pressing of the central region S and the side region M are substantially the same, so that the workability is remarkably improved. For example, in the bonding of the first sheet and the second sheet, voids are less likely to occur. Further, it is possible to suppress abrasion or defect of the roller for bonding. Further, since the area ratio of the joint portion is substantially the same as the side portion region M in the central portion S, an advantage important for the absorbent article can be obtained, that is, the discharged urine can be uniformly absorbed by the entire surface of the absorbent body. In the present embodiment, when the first sheet and the second sheet of the laminate are partially joined by embossing or ultrasonic processing to form a plurality of joint portions M11, M12, S11, and S12, the joint portion is formed. In the middle, the fibers constituting the nonwoven fabric of the first sheet and the second sheet are film-coated to prevent peeling and bulging during use, so that urine is not absorbed in the joint portion. Since the urine is discharged to the central region S at a rate of 3 cc/sec or more and 20 cc/sec or less in the normal use state, the central region S cannot be completely absorbed, and it is important that not only the central region S but also The side region M is also instantaneously absorbed. When the area ratio of the joint portion existing in the center region S and the side portion region M is different, the rate of absorption of the excreted urine in each portion varies, and it is difficult to use it uniformly and efficiently due to this. The entire surface of the absorber is absorbed, so that leakage is liable to occur. In the present invention, since the area of the joint portion of the portion is the same, such a problem can be prevented. Moreover, by using the entire surface of the absorbent body uniformly and efficiently, the free water inside the diaper (water which is not retained by the water-absorbing polymer particles) is reduced, and the return of moisture to the skin during the wearing of the diaper can be suppressed. The area ratio of the joint portion is substantially the same as the side portion region M in the central region S, and the area ratio of the joint portion in the central portion S and the side portion region M is preferably 10% or more, and more preferably 15% or more. Further, the area ratio of the joint portion is preferably 40% or less, more preferably 35% or less. The area ratio of the joint portion is preferably 10% or more and 40% or less, more preferably 15% or more and 35% or less. By setting the area ratio to this range, the joint strength of the two sheets can be sufficiently improved without lowering the skin feel and absorption performance of the front sheet 2. In the front sheet 2, the shape and/or the arrangement pattern of the joint portion in the central portion S and the side portion region M are different, and the number of side portions M of the joint portion per unit area is larger than that of the central portion S. The number of joints of the side regions M is set to be more than the central regions S with the advantages (a) and (b) described below. (a) The degree of freedom of the constituent fibers of the front sheet 2, that is, the ease of movement of the fibers, is such that the central portion S is higher than the side portion M. As a result, the softness of the central region S is improved. (b) The height difference between the convex portion and the concave portion in the side portion M is relatively low, and the degree of freedom of the fiber is lowered. As a result, damage to the front sheet 2 in the side region of the activity of the wearer's leg is less likely to occur. Further, by setting the number of the joint portions of the side portions M to be larger than the central portion S, there is also an advantage that the vibration at both sides of the roller at the time of manufacture is small, and the workability is remarkably improved. For example, in the bonding of the first sheet and the second sheet, voids are less likely to occur. Further, it is possible to suppress abrasion or defect of the roller for bonding. In the front sheet 2, the area of the joint portions S11 and S12 formed in the center portion S is the largest, and the area of the joint portions M11 and M12 formed in the side portion M is the largest. When the area is D, it is preferable to have a relationship of C>D. By making the area of the joint portion formed in the central portion S larger than the area of the joint portion formed in the side portion region M, it is easy to make the number of joint portions formed in the central portion S smaller than that formed in the side portion region M. The number of joints. Thereby, in the state in which the diaper 1 is worn, irregular wrinkles are less likely to occur in the central region S. If irregular wrinkles are generated, urine or feces become easy to flow along wrinkles, and sometimes it is easy to cause leakage due to this. On the other hand, by suppressing the generation of wrinkles, liquid leakage can be suppressed. From the viewpoint of further suppressing the occurrence of wrinkles, the area D is preferably 80% or less of the area C, and more preferably 70% or less. Further, the area D is preferably 20% or more of the area C, and more preferably 30% or more. The area D is preferably 20% or more and 80% or less of the area C, and more preferably 30% or more and 70% or less. The ratio of the sum of the areas of the joint portions of the area C to the total area of the joint portions of the central portion S is preferably 20% or more, and more preferably 30% or more. The upper limit of the ratio is preferably 80%, and more preferably 70%. On the other hand, the ratio of the sum of the areas of the joint portions of the area D to the total area of the joint portions of the side portions M is preferably 80% or more, and more preferably 90% or more. The upper limit of the ratio is preferably 100%. In the front sheet 2, the length of the longest length along the longitudinal direction X in the joint portions S11 and S12 formed in the center region S is E, and the joint portions M11 and M12 formed in the side portion M are formed. When the length of the longest length in the longitudinal direction is F, it is preferable to have a relationship of E>F. Thereby, in the state in which the diaper 1 is worn, when the central region S is wrinkled in the central region S due to the force of the laterally inner side of the wearer's thigh, it becomes easy to generate the wrinkles regularly. In other words, irregular wrinkles are less likely to occur in the central region S. Due to this, liquid leakage is suppressed. From the viewpoint of making the generation of wrinkles more regular, the length F is preferably 80% or less of the length E, and more preferably 70% or less. Further, the length F is preferably 20% or more of the length E, and more preferably 30% or more. The length F is preferably 20% or more and 80% or less of the length E, and more preferably 30% or more and 70% or less. The ratio of the sum of the areas of the joint portions of the central portion S and the length E to the total area of the joint portions is preferably 20% or more, and more preferably 30% or more. The upper limit of the ratio is preferably 100%, and more preferably 80%. On the other hand, the ratio of the sum of the areas of the joint portions of the side portions M and the length F to the total area of the joint portions is preferably 60% or more, and more preferably 80% or more. The upper limit of the ratio is preferably 100%, and more preferably 90%. In the front sheet 2, it is preferable that the shear stress of the sheet 2 in the side portion M is higher than the shear stress of the sheet 2 in the central portion S. The shear stress is an indicator of the softness of the convex portion formed in the central region S and the side region M, meaning that the smaller the shear stress, the softer the convex portion. Therefore, the higher the shear stress in the side region M than the shear stress in the central region S means that the convex portion of the central portion S is softer than the side portion. Thereby, the convex portion of the central region S which is the region most dominant in softness can be made soft, and the wearing feeling of the diaper 1 can be improved. The shear stress was measured by the following method. The front sheet of the measurement object was cut into a rectangular shape of a plan view having a longitudinal length of 50 mm and a lateral length of 30 mm as a test piece. Next, the tape of the same shape and the same size as the test piece (manufactured by Nitto Denko Co., Ltd., trade name "No. 500") was overlaid on a PET (Polyethylene Terephthalate) film (STAR CORPORATION). In the product name "Star OHP Film", a laminate (A) was produced, and the non-protrusion side of the test piece was superposed on the tape side of the laminate (A) to obtain a laminate (B), and 1 kg was obtained. The roller was reciprocated five times on the laminated body (B), and the tape in the laminated body (B) was pressure-bonded to the test piece. In addition, a male member (made of 3M (manufactured by the company), trade name "1600 PPI") of the mechanical fastener of the shape and size of the entire test piece is prepared as the adhesive sheet, and the test piece on the laminated body (B) is prepared. The convex portion side was pressure-bonded by a load of 1.5 kPa via the bristle material on the adhered sheet to obtain a measurement sample. The measurement sample was placed between the chucks of the tensile tester (Autograph AG-X manufactured by Shimadzu Corporation) (the distance between the chucks was 150 mm), and the 180-degree peeling of the measurement sample was performed. The 180-degree peeling is performed by sandwiching the laminated body (B) at the longitudinal end of the sample and the adhered sheet at the other end in a collet of the tensile testing machine, and facing the opposite direction of 180 degrees. Stretching. The stretching speed was set to 300 mm/min, and the maximum value of the tensile load at this time was recorded. The measurement site was measured from a diaper in the length direction of the diaper, the abdomen, the back side, the short dimension of the diaper, and the left, right, and center portions. The test piece was measured, and a total of three diapers were measured, and the average value thereof was measured. Shear stress (unit: N) of the front sheet as the measurement target. The value of the shear stress in the central region S is preferably 25 N or more, and more preferably 30 N or more. Further, it is preferably 34 N or less, and more preferably 33 N or less. The value of the shear stress in the central region S is preferably 25 N or more and 34 N or less, and more preferably 30 N or more and 33 N or less. On the other hand, the value of the shear stress in the side region M is preferably higher than the shear stress of the central region S, preferably 33 N or more, and more preferably 35 N or more. Further, it is preferably 45 N or less, and more preferably 40 N or less. The value of the shear stress in the side region M is preferably 33 N or more and 45 N or less, and more preferably 35 N or more and 40 N or less. In order to make the value of the shear stress different between the central region S and the side region M, for example, the joint pattern of the central region S may be different from the joint pattern of the side region M, or the strength of each joint may be different. . For example, the convex portions S21 and S22 are present in the central region S, and the convex portions M21 are present in the side region M (see FIG. 4). At this time, the area of the convex portion in the central region S (the convex portion S21 in FIG. 4) is set as S. Max The area of the convex portion in the side region M (the convex portion M21) is set to M. Max In the case of the situation, it is important to satisfy S Max >M Max Relationship. By satisfying this relationship, the degree of freedom of the fibers (ease of movement) in the central region S is relatively larger than that in the side region M, and the softness becomes more remarkable. The front sheet 2 having the above-described configuration can be produced, for example, according to the method for producing a composite sheet described in JP-A-2015-112343. Specifically, for example, it is obtained by supplying a strip-shaped first sheet to a first roll and a second roll having a circumferential surface that is in mesh with each other, and deforming the first sheet into a bump. After the shape, the first sheet is moved from the meshing portion along the circumferential surface portion of the first roller, and then the second sheet is supplied so as to be superimposed on the first sheet, and the two sheets are placed in the first roller. When the convex portion and the heating roller are heated, they are sandwiched and partially joined. In this case, the uneven shape of the first roller and the second roller and the joint portion formed by the first roller and the heating roller are formed. The pattern is different in the central portion and the side portion of the first sheet. When the first sheet is engaged with the meshing portion between the first roller and the second roller and deformed into a concave-convex shape, it is preferable that the first sheet is attracted toward the inside of the roller to promote deformation of the first sheet into an uneven shape. The first sheet and the second sheet constituting the front sheet 2 are composed of a sheet material. As the sheet material, for example, a fiber sheet such as a nonwoven fabric, a woven fabric, or a knitted fabric, or a film or the like can be used. From the viewpoint of skin feel and the like, it is preferred to use a fiber sheet, and it is particularly preferable to use a nonwoven fabric. The type of the sheet material constituting the first sheet and the second sheet may be the same or different, but from the viewpoint of obtaining a firm sealing strength, the same type of sheet is preferable. When a non-woven fabric is used as the sheet material constituting the first sheet and the second sheet, examples of the nonwoven fabric include hot air non-woven fabric, spunbonded non-woven fabric, spunlaced non-woven fabric, melt-blown non-woven fabric, and resin adhesive non-woven fabric. , acupuncture, non-woven fabrics, etc. A laminate obtained by combining two or more kinds of nonwoven fabrics or a laminate obtained by combining the nonwoven fabric with a film or the like may be used. Among them, it is preferred to use a hot air non-woven fabric or a spunbonded non-woven fabric. In particular, the first sheet which is a sheet which is located on the side opposite to the skin of the wearer in the state in which the diaper 1 is worn contains a hot air non-woven fabric. The basis weight of the nonwoven fabric used as the sheet material constituting the first sheet and the second sheet is independently preferably 10 g/m. 2 Above, more preferably 15 g/m 2 Above, again, preferably 40 g/m 2 Below, more preferably 35 g/m 2 the following. The basis weight of the non-woven fabric is preferably 10 g/m 2 Above 40 g/m 2 Hereinafter, it is further preferably 15 g/m 2 Above 35 g/m 2 the following. As the fiber constituting the nonwoven fabric, various fibers containing a thermoplastic resin can be used. Examples of the thermoplastic resin include polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate, polyamides such as nylon 6 or nylon 66, polyacrylic acid, polyalkyl methacrylate, and poly Vinyl chloride, polyvinylidene chloride and the like. These resins may be used singly or in combination of two or more kinds. Further, it can be used in the form of a composite fiber such as a core sheath type or a side-by-side type. More preferably, the first sheet which is a sheet which is located on the side opposite to the skin of the wearer in the state in which the diaper 1 is worn contains a plurality of types of fibers. In particular, in the case where the first sheet is a double-layer structure, it is preferred that any one of the upper layer and the lower layer contains a plurality of fibers. Thereby, the cushioning feeling by the convex portion is high, and the smoothness of the convex portion is improved. Further, the erectability of the convex portion or the non-collapse property of the convex portion when the load is applied is improved. Preferably, the plurality of fibers include at least two types of fibers including the first fiber and the second fiber. Further, each of the first fiber and the second fiber preferably contains a high melting point component and a low melting point component having a melting point lower than the high melting point component. In this case, the high melting point component of the first fiber and the high melting point component of the second fiber may be the same type, or may be different types. Further, the low melting point component of the first fiber and the low melting point component of the second fiber may be of the same type or may be of different types. The first fiber and the second fiber are preferably distinguished by a difference in diameter ratio. In the present specification, the diameter ratio is a ratio of a diameter of a high melting point component of each of the first fiber and the second fiber to a diameter (μm) of the low melting component. The diameter of the high melting point component and the diameter of the low melting point component are, for example, when the first and second fibers are core-sheath type composite fibers, and the sheath resin contains a low melting point component, and the core resin contains a high melting point component, FIG. 5 D1 is the diameter of the low melting component C1, and D2 is the diameter of the high melting component C2. Further, the diameter ratio AX of the high melting point component C2 and the low melting point component C1 of the X-th fiber is calculated by the following formula. Here, "the same type of hot-melt fiber" means that the resin constituting the fiber is the same and the structure is also the same. For example, when there are two core-sheath composite fibers including a high melting point component and a low melting point component, the high melting point component and the low melting point component of the two fibers are the same resin, and the diameter ratio of the core sheath is In the same case, the two fibers are the same type of hot melt fibers. On the other hand, even if the high melting point component and the low melting point component are the same resin, respectively, when the diameter ratio is different, they are different types of hot melt fibers. Further, "comprising a plurality of types of fibers" means containing different types of hot-melt fibers. The diameter ratio of the X-th fiber is AX = the diameter of the low-melting component of the X-fiber D1 (μm), and the diameter of the high-melting component of the X-fiber is D2 (μm). In the present invention, as described above, the first fiber is preferably used. The diameter ratio A1 is different from the diameter of the second fiber by A2. The ratio of A2 to A1, that is, the value of A2/A1 is preferably less than 1, more preferably 0.99 or less, still more preferably 0.91 or less. Further, the value of A2/A1 is preferably 0.5 or more, more preferably 0.6 or more, still more preferably 0.7 or more. By setting the ratio of A1 to A2 in this way, the cushioning feeling by the convex portion is further improved, and the smoothness of the convex portion is further improved. Further, the erectability of the convex portion or the non-collapse property of the convex portion when the load is applied is further improved. For example, the value of A2/A1 is preferably 0.5 or more and less than 1, more preferably 0.6 or more and 0.99 or less, and still more preferably 0.7 or more and 0.91 or less. When the ratio of the diameter ratio A1 of the first fibers to the diameter ratio A2 of the second fibers is as described above, the diameter ratio of the first fibers is preferably 1.1 or more, more preferably 1.2 or more, more preferably 1.2 or more. 1.3 or more. Further, it is preferably 2.0 or less, more preferably 1.9 or less, still more preferably 1.8 or less. Specifically, the diameter ratio of the first fiber to A1 itself is preferably 1.1 or more and 2.0 or less, more preferably 1.2 or more and 1.9 or less, and still more preferably 1.3 or more and 1.8 or less. On the other hand, the diameter ratio A2 of the second fiber itself is less than A1, preferably 1.1 or more, more preferably 1.2 or more, still more preferably 1.3 or more. Further, it is preferably 2.0 or less, more preferably 1.9 or less, still more preferably 1.8 or less. Specifically, the diameter ratio of the second fiber to A2 itself is preferably 1.1 or more and 2.0 or less, more preferably 1.2 or more and 1.9 or less, and still more preferably 1.3 or more and 1.8 or less. 6(a) and 6(b) show another embodiment of the front sheet 2. In the front sheet 2 of the embodiment shown in Fig. 6(a), the central portion S has joint portions S11 and S12 having mutually different shapes. The joint portions S11 are arranged at a predetermined interval along the longitudinal direction X to form a first joint portion row S31. Moreover, the joint portion S12 is also arranged at a predetermined interval along the longitudinal direction X to form the second joint portion row S32. Further, the two rows of the first joint portion row S31 and the one row of the second joint portion row S32 are one set, and the stack is arranged in the horizontal direction Y. On the other hand, the side region M has only one joint portion, that is, the joint portion M11. The joint portion M11 is arranged at a specific interval along the longitudinal direction X to form a fourth joint portion row M31. Moreover, the joint portion M11 is arranged at a predetermined interval along the longitudinal direction X to form the fifth joint portion row M32. In the fourth joint portion row M31 and the fifth joint portion row M32, the distance between the joint portions 11 along the longitudinal direction X is different, and the distance between the fifth joint portion rows M32 is larger than the distance between the fourth joint portion rows M31. In the front sheet 2 of the embodiment shown in Fig. 6(b), the central portion S has joint portions S11 and S12 having mutually different shapes. The joint portions S11 are arranged at a predetermined interval along the longitudinal direction X to form a first joint portion row S31. Moreover, the joint portion S11 is arranged at a predetermined interval along the longitudinal direction X to form the second joint portion row S32. The distance between the first joint portion row S31 and the second joint portion row S32 along the joint portion S11 in the longitudinal direction X is the same, but the phase is shifted by a half pitch. On the other hand, the joint portions S12 are arranged at specific intervals along the longitudinal direction X to form the third joint portion row S33. In the central region S, the first joint portion row S31, the third joint portion row S33, the first joint portion row S31, the third joint portion row S33, the second joint portion row S32, and the third joint portion row S33 are sequentially They are arranged in the lateral direction Y and are grouped in a group, and the groups are arranged in the lateral direction Y repeatedly. On the other hand, the side region M has only one joint portion, that is, the joint portion M11. The joint portion M11 is arranged at a specific interval along the longitudinal direction X to form a fourth joint portion row M31. Moreover, the joint portion M11 is arranged at a predetermined interval along the longitudinal direction X to form the fifth joint portion row M32. In the fourth joint portion row M31 and the fifth joint portion row M32, the distance between the joint portions 11 along the longitudinal direction X is the same, but the phase is shifted by a half pitch. In the case of using the front sheet 2 of the embodiment shown in Figs. 6(a) and 6(b) above, the area ratio of the joint portion is preferably substantially the same as the side portion M in the central portion S. Further, the number of joint portions per unit area is also preferably that the side portion region M is larger than the center portion S. Thereby, the front sheet 2 exhibits a good texture, and peeling or bulging is less likely to occur between the two sheets. Hereinabove, the present invention has been described based on preferred embodiments thereof, but the present invention is not limited to the above embodiments. For example, the above embodiment is an example in which the absorbent article of the present invention is applied to an unfolded disposable diaper, but the present invention is also applicable to other disposable diapers such as a pants-type disposable diaper. Further, the present invention is also applicable to absorbent articles other than disposable diapers, such as menstrual sanitary napkins or incontinence pads. In the above embodiment, the present invention further discloses the following absorbent article. <1> An absorbent article comprising a topsheet, a backsheet, and an absorbent body disposed between the two sheets, wherein the topsheet comprises a laminate of the first sheet and the second sheet The laminated body has a plurality of joint portions formed by partial joining of the first sheet and the second sheet, and the first sheet protrudes away from the second sheet in a portion other than the joint portion. a plurality of convex portions protruding toward the body of the wearer, wherein the front sheet has a central portion extending in a central portion in the width direction and extending in the longitudinal direction, and a side portion adjacent to the central portion and extending in the longitudinal direction The shape and/or arrangement pattern of the joint portion is different from the side region in the central region, and the area ratio of the joint portion is substantially the same as the side region in the central region, and the number of the joint portions per unit area is the side region. More than the central area. <2> The absorbent article according to the above <1>, wherein the surface of the surface sheet having the largest area among the joint portions formed in the central portion is C, and is formed in the side portion. When the area of the largest of the joint portions is D, the relationship of C>D is obtained. <3> The absorbent article according to the above <1>, wherein, in the front sheet, the length of the length in the longitudinal direction of the joint portion formed in the central portion is set to be the longest. E. When the length of the longest length in the longitudinal direction among the joint portions formed in the side portion is F, it has a relationship of E>F. The absorbent article of any one of the above-mentioned <1> to <3> wherein, in relation to the above-mentioned front sheet, the shear stress of the sheet in the side region is higher than that of the sheet in the central region. Shear stress. <5> The absorbent article according to any one of the items <1> to <4> which has a ventral side portion disposed on the ventral side of the wearer when worn, a back side portion disposed on the back side, and the like The lower central portion and the side portion are formed at least in the lower portion of the crotch. <6> The absorbent article according to any one of the items <1> to <5> which has a ventral side portion disposed on the ventral side of the wearer when worn, a back side portion disposed on the back side, and the like Preferably, the central portion and the side portion are formed from the lower portion of the crotch to the one of the front side portion and the back side portion, or more preferably the absorbent body It is formed over the entire length, and more preferably formed over the entire length of the absorbent article. The absorbent article according to any one of the above aspects, wherein the width of the central region is preferably 30% or more, and more preferably 40% or more, with respect to the width of the front sheet. It is preferably 70% or less, and more preferably 60% or less. The absorbent article according to any one of the above aspects, wherein the width of the side portion is preferably 15% or more and 35% or less with respect to the width of the front sheet, and more preferably 20% or more and 30% or less. The absorbent article according to any one of the above aspects, wherein the total width of the side portions is preferably 30% or more, and more preferably 40, with respect to the width of the front sheet. % or more, preferably 70% or less, further preferably 60% or less. The absorbent article according to any one of the above aspects, wherein the front sheet is in the second sheet side and in the central portion and the side portion. The surface is substantially flat, and irregularities having a large undulation are formed on the first sheet side. The absorbent article according to any one of the items <1> to <10> which has a longitudinal direction corresponding to the front and rear direction of the wearer and a transverse direction orthogonal to the longitudinal direction, in the center of the front sheet In the region, two kinds of joint portions are formed, and the two joint portions are uniform in shape having a rectangular shape along the longitudinal direction and the lateral direction, but are different from each other. The absorbent article according to any one of the items <1> to <11>, which has a longitudinal direction corresponding to the front and rear direction of the wearer and a transverse direction orthogonal to the longitudinal direction, in the center of the front sheet In the region, two kinds of joint portions which are arranged in a row shape along a predetermined distance in the longitudinal direction are formed, one type of joint portion forms a first joint portion row, and the other joint portion is alternately arranged adjacent to the first one. a second joint portion row and a third joint portion row between the joint portion rows, wherein the second joint portion row and the third joint portion row are the same distance between the other joint portions in the longitudinal direction, and the phase is shifted by half Spacing. The absorbent article according to any one of the above aspects, wherein the absorbent article has a longitudinal direction corresponding to the front and rear directions of the wearer and a transverse direction orthogonal to the longitudinal direction, and two types of the central region are formed. a convex portion, wherein the convex portion has a substantially elliptical top view shape along a length of the lateral direction and a length along the longitudinal direction, and the other convex portion has a length along the lateral direction which is substantially the same as a length along the longitudinal direction. The shape of the circular shape. The absorbent article according to any one of the above aspects, wherein the absorbent article has a longitudinal direction corresponding to a front and rear direction of the wearer and a transverse direction orthogonal to the longitudinal direction, and is formed in the side region. In the two kinds of joint portions, the two joint portions are identical in shape in terms of a rectangle having a side along the longitudinal direction and the lateral direction, but are different from each other. The absorbent article according to any one of the above aspects, wherein the absorbent article has a longitudinal direction corresponding to a front and rear direction of the wearer and a transverse direction orthogonal to the longitudinal direction, and is formed in the side region Two types of joints arranged in a row along a predetermined distance in the longitudinal direction, one joint portion forming a fourth joint portion row, and the other joint portion forming alternately arranged in the horizontal direction with the fourth joint portion row In the fifth joint portion row, the distance between the one of the joint portions in the fourth joint portion row and the distance between the other joint portions in the fifth joint portion row are the same, and the fourth joint portion row and the fifth joint are joined In the section, the arrangement of the joints is shifted by a half pitch. The absorbent article according to any one of the above aspects, wherein the two types of convex portions are formed in the central region, and the two types of convex portions have different heights. The absorbent article according to any one of the above aspects, wherein the convex portion disposed in the side region is lower than a height of the convex portion disposed in the central region. Or the height of the two is the same. The absorbent article according to any one of the above aspects, wherein the central portion and the side portion have different arrangement patterns of the joint portions, and the joint portions have different shapes. The absorbent article according to any one of the above aspects, wherein the area ratio of the joint portion in the central region and the side portion is preferably 10% or more, and more preferably 15 More than %, preferably 40% or less, more preferably 35% or less. The absorbent article according to any one of the above aspects, wherein the area of the largest portion of the joint portion formed in the side portion is C, and is formed in the center. When the area of the largest area among the joint portions of the region is D, the area D is preferably 80% or less of the area C, more preferably 70% or less, more preferably 20% or more, and further preferably More than 30%. The absorbent article according to any one of the above aspects, wherein the area of the largest portion of the joint portion formed in the side portion is C, and is formed in the center. When the area of the largest area among the joint portions of the region is D, the ratio of the sum of the areas of the joint portions of the areas C to the total area of the joint portions of the central portion is preferably 20%. The above is further preferably 30% or more, and the upper limit of the ratio is preferably 80%, and more preferably 70%. The absorbent article according to any one of the above aspects, wherein the area of the largest portion of the joint portion formed in the side portion is C, and is formed in the center. When the area of the largest area among the joint portions of the region is D, the ratio of the sum of the areas of the joint portions of the areas D to the total area of the joint portions of the side portions is preferably 80. More than %, more preferably 90% or more, and the upper limit of the ratio is preferably 100%. The absorbent article according to any one of the items <1> to <22>, which has a longitudinal direction corresponding to the front and rear direction of the wearer and a transverse direction orthogonal to the longitudinal direction, and is formed in the central region. The length of the longest length in the longitudinal direction of the joint portion is E, and the length F is the same as the length of the longest length along the longitudinal direction of the joint portion formed in the side portion. It is preferably 80% or less of the above length E, more preferably 70% or less, more preferably 20% or more, still more preferably 30% or more. The absorbent article according to any one of the above aspects, wherein the length of the longest length along the longitudinal direction in the joint portion formed in the central region is set to E, and is formed. When the length of the longest length along the longitudinal direction in the joint portion of the side portion is F, the sum of the areas of the joint portions of the central portion and the length E is the sum of the areas of the joint portions. The ratio is preferably 20% or more, more preferably 30% or more, and the upper limit of the ratio is preferably 100%, and more preferably 80%. The absorbent article according to any one of the above aspects, wherein the length of the longest length along the longitudinal direction in the joint portion formed in the central region is set to E, and is formed. When the length of the longest length along the longitudinal direction in the joint portion of the side portion is F, the sum of the areas of the joint portions of the side portions F and the area of the joint portion is the sum of the areas of the joint portions. The ratio is preferably 60% or more, more preferably 80% or more, and the upper limit of the ratio is preferably 100%, and more preferably 90%. The absorbent article according to any one of the above aspects, wherein the value of the shear stress in the central region is preferably 25 N or more, more preferably 30 N or more, and preferably 34. N or less, further preferably 33 N or less. The absorbent article according to any one of the above aspects, wherein the shear stress of the side region is higher than the shear stress of the central region, preferably 33 N The above is more preferably 35 N or more, preferably 45 N or less, and further preferably 40 N or less. The absorbent article according to any one of the above aspects, wherein the area of the convex portion in the central region is the largest. Max , the area of the largest area of the convex portion in the side region is set to M Max In case of situation, satisfy S Max >M Max Relationship. The absorbent article according to any one of the above-mentioned items, wherein the basis weight of the non-woven fabric used as the sheet material constituting the first sheet and the second sheet is preferably 10 g/m 2 Above, more preferably 15 g/m 2 Above, again, preferably 40 g/m 2 Below, more preferably 35 g/m 2 the following. EXAMPLES Hereinafter, the present invention will be described in further detail by way of examples. However, the scope of the invention is not limited by the embodiment. As long as it is not specifically mentioned, "%" means "% by mass". [Example 1] The front sheet of the disposable diaper "Merries" (registered trademark, manufactured in 2015) manufactured by Kao Co., Ltd. was removed, and the front sheet shown in Figs. 3 and 4 was placed instead of the front sheet. And get a disposable diaper. The dimensions of the joint portion in the front sheet shown in Figs. 3 and 4 are set as follows. S11:1 mm × 4 mm, S12: 1 mm × 1 mm, M11:1 mm × 4 mm, M12: 1 mm × 3 mm (all rectangular) Further, the first sheet constituting the front sheet is located at The wearer's skin facing sheet contains hot air non-woven fabric (basis weight 18 g/m) 2 ). The second sheet also contains hot air non-woven fabric (base weight 18 g/m) 2 ). The hot air non-woven fabric constituting the first sheet comprises a double layer structure of an upper layer and a lower layer, and the upper layer comprises a core-sheath type composite fiber of polyethylene terephthalate/polyethylene (resin mass ratio 5/5, 2.3 dtex, core sheath diameter) Than 1.57). The lower layer comprises polyethylene/polyethylene terephthalate core-sheath composite fiber (resin mass ratio 5/5, 2.3 dtex, core sheath diameter ratio 1.57) and polypropylene/low melting point polypropylene core sheath type composite fiber (Resin mass ratio 5/5, 2.2 dtex, core sheath diameter ratio 1.42) mass ratio of 5:5 blended cotton. The hot air non-woven fabric constituting the second sheet contains a polyethylene terephthalate/polyethylene core-sheath type composite fiber (resin mass ratio of 5/5, 2.3 dtex). [Example 2] In Example 1, the one shown in Fig. 6 (a) was used as the front sheet. A disposable diaper was obtained in the same manner as in Example 1 except for the above. The size of the joint portion in the front sheet shown in Fig. 6(a) is set as follows. S11:1 mm × 2 mm, S12: 1 mm × 1 mm, M11:1 mm × 1 mm (all rectangular) [Example 3] In Example 1, the person shown in Fig. 6 (b) was used as the front side. Sheet. A disposable diaper was obtained in the same manner as in Example 1 except for the above. The size of the joint portion in the front sheet shown in Fig. 6(b) is set as follows. S11:1 mm × 3 mm, S12: 1 mm × 1 mm, M11:1 mm × 1 mm (all rectangular) [Comparative Example 1] In Example 1, only the front sheet used in Example 1 was used. The joint portion of the side portion in the material is formed as a front sheet in the entire region. A disposable diaper was obtained in the same manner as in Example 1 except for the above. [Evaluation] With respect to the disposable diapers obtained in the examples and the comparative examples, the texture of the front sheet and the degree of peeling between the sheets of the top sheet were evaluated by the following methods. The results are shown in Table 1 below. [Softness of the front sheet] Ten of the mothers of the diapers using the diaper were evaluated for the softness of the surface material based on the following criteria. The results obtained are shown in Table 1. First, 10 mothers touched the front sheet of the disposable diaper "Merries" (registered trademark, manufactured in 2015) manufactured by Kao Co., Ltd., based on it (3 points), with 1 point (soft), 2 points. (Slightly soft), 3 points (same as Merries), 4 points (slightly soft), and 5 points (not soft) were evaluated in five grades, and the softness was evaluated based on the average of 10 mothers. [The degree of peeling between the sheets of the front sheet] The acrylic resin sheet is placed in the sample, and the pressure is assumed to be 3.5 kgPa when the pressure is assumed to be set by the infant, and the acrylic is applied at a stroke length of 10 cm. The resin sheet was moved a specific number of times, and the degree of peeling was evaluated by visual observation. The degree of peeling of the front sheet of the disposable diaper "Merries" (registered trademark, manufactured in 2015) manufactured by Kao Co., Ltd. is set to "medium", and the degree of peeling is lower than the one set to "small". The degree of peeling is higher than the one set to "large". [Table 1] As is clear from the results shown in Table 1, the diaper of the example was superior in texture to the diaper of the comparative example, and the peeling between the sheets was less likely to occur. [Industrial Applicability] According to the present invention, there is provided an absorbent article comprising a topsheet comprising a laminate which exhibits a good texture and which is less likely to cause peeling or bulging between two sheets.

1‧‧‧尿布
1F‧‧‧腹側部
1M‧‧‧胯下部
1R‧‧‧背側部
2‧‧‧正面片材
3‧‧‧背面片材
4‧‧‧吸收體
5‧‧‧側部片材
6‧‧‧黏扣帶
7‧‧‧被固定區域
40‧‧‧吸收性芯體
40a‧‧‧吸收性芯體之肌膚對向面
40b‧‧‧吸收性芯體之非肌膚對向面
45‧‧‧包芯片材
50‧‧‧彈性構件
51‧‧‧彈性構件
C1‧‧‧低熔點成分
C2‧‧‧高熔點成分
D1‧‧‧低熔點成分之直徑
D2‧‧‧高熔點成分之直徑
M‧‧‧ 側部區域
M11‧‧‧接合部
M12‧‧‧接合部
M21‧‧‧凸部
M31‧‧‧第4接合部行
M32‧‧‧第5接合部行
M33‧‧‧第3凸部行
M34‧‧‧第4凸部行
S‧‧‧中央區域
S11‧‧‧接合部
S12‧‧‧接合部
S21‧‧‧凸部
S22‧‧‧凸部
S31‧‧‧第1接合部行
S32‧‧‧第2接合部行
S33‧‧‧第3接合部行
S34‧‧‧第1凸部行
S35‧‧‧第1凸部行
X‧‧‧ 縱向
Y‧‧‧ 橫向1‧‧‧ diapers
1F‧‧‧ ventral side
1M‧‧‧胯 lower part
1R‧‧‧ Back side
2‧‧‧Front sheet
3‧‧‧Back sheet
4‧‧‧Acceptor
5‧‧‧Side sheet
6‧‧‧Buckle belt
7‧‧‧Fixed area
40‧‧‧Absorbable core
40a‧‧‧Absorbing core skin opposite
40b‧‧‧Non-skin contrast surface of absorbent core
45‧‧‧Package
50‧‧‧Flexible components
51‧‧‧Flexible components
C1‧‧‧ low melting point ingredients
C2‧‧‧High melting point ingredients
D1‧‧‧Diameter of low melting point ingredients
D2‧‧‧ diameter of high melting point component
M‧‧‧ side area
M11‧‧‧ joint
M12‧‧‧ joint
M21‧‧‧ convex
M31‧‧‧4th joint line
M32‧‧‧5th joint line
M33‧‧‧3rd convex line
M34‧‧‧4th convex line
S‧‧‧Central Area
S11‧‧‧ joint
S12‧‧‧ joint
S21‧‧‧ convex
S22‧‧‧ convex
S31‧‧‧1st joint line
S32‧‧‧2nd joint line
S33‧‧‧3rd joint line
S34‧‧‧1st convex line
S35‧‧‧1st convex line
X‧‧‧ Portrait
Y‧‧‧ Landscape

圖1係對於本發明之吸收性物品之一實施形態之拋棄式尿布，使各部之彈性構件伸長而使其成為展開為平面狀之展開狀態，並自肌膚對向面即正面片材側觀察該尿布之俯視圖。 圖2係模式性地表示圖1中之Ⅱ-Ⅱ線剖面之厚度方向剖視圖。 圖3係表示配置於圖1所示之尿布之正面片材之肌膚對向面之一部分之俯視圖。 圖4係將圖3之主要部分放大而表示之俯視圖。 圖5係表示用於本發明之吸收性物品之正面片材之第1纖維或第2纖維之剖面結構之一例之模式圖。 圖6(a)及圖6(b)係表示用於本發明之吸收性物品之正面片材之另一實施形態之俯視圖。Fig. 1 is a disposable diaper according to an embodiment of the absorbent article of the present invention, in which the elastic members of the respective portions are stretched to be in a developed state in which they are developed in a planar shape, and are observed from the skin facing surface, that is, the front sheet side. Top view of the diaper. Fig. 2 is a cross-sectional view in the thickness direction schematically showing a cross section taken along line II-II in Fig. 1. Fig. 3 is a plan view showing a portion of the skin facing surface of the front sheet of the diaper shown in Fig. 1. Fig. 4 is a plan view showing an enlarged main portion of Fig. 3; Fig. 5 is a schematic view showing an example of a cross-sectional structure of a first fiber or a second fiber used for the top sheet of the absorbent article of the present invention. Fig. 6 (a) and Fig. 6 (b) are plan views showing another embodiment of the topsheet used for the absorbent article of the present invention.

2‧‧‧正面片材 2‧‧‧Front sheet

M‧‧‧側部區域 M‧‧‧Side area

M11‧‧‧接合部 M11‧‧‧ joint

M12‧‧‧接合部 M12‧‧‧ joint

M21‧‧‧凸部 M21‧‧‧ convex

M31‧‧‧第4接合部行 M31‧‧‧4th joint line

M32‧‧‧第5接合部行 M32‧‧‧5th joint line

M33‧‧‧第3凸部行 M33‧‧‧3rd convex line

M34‧‧‧第4凸部行 M34‧‧‧4th convex line

S‧‧‧中央區域 S‧‧‧Central Area

S11‧‧‧接合部 S11‧‧‧ joint

S12‧‧‧接合部 S12‧‧‧ joint

S21‧‧‧凸部 S21‧‧‧ convex

S22‧‧‧凸部 S22‧‧‧ convex

S31‧‧‧第1接合部行 S31‧‧‧1st joint line

S32‧‧‧第2接合部行 S32‧‧‧2nd joint line

S33‧‧‧第3接合部行 S33‧‧‧3rd joint line

S34‧‧‧第1凸部行 S34‧‧‧1st convex line

S35‧‧‧第1凸部行 S35‧‧‧1st convex line

X‧‧‧縱向 X‧‧‧ portrait

Y‧‧‧橫向 Y‧‧‧ horizontal

Claims (29)

一種吸收性物品，其係具備正面片材、背面片材及配置於該等兩片材間之吸收體者，且 上述正面片材包含第1片材與第2片材之積層體， 上述積層體具有複數個因第1片材與第2片材之局部接合所產生之接合部，第1片材於除上述接合部以外之部位向遠離第2片材之方向突出，而形成朝向穿著者之身體突出之複數個凸部， 上述正面片材具有位於寬度方向之中央部且於長度方向延伸之中央區域、及與該中央區域相鄰且於長度方向延伸之一對側部區域， 上述接合部之形狀及/或配置圖案於上述中央區域與上述側部區域不同， 上述接合部之面積率於上述中央區域與上述側部區域大致相同， 每單位面積之上述接合部之個數係上述側部區域多於上述中央區域。An absorbent article comprising a topsheet, a backsheet, and an absorbent body disposed between the two sheets, wherein the topsheet comprises a laminate of the first sheet and the second sheet, and the laminate The body has a plurality of joint portions formed by partial joining of the first sheet and the second sheet, and the first sheet protrudes away from the second sheet in a portion other than the joint portion to form a wearer facing the wearer a plurality of convex portions protruding from the body, wherein the front sheet has a central portion extending in a central portion in the width direction and extending in a longitudinal direction, and a side portion extending adjacent to the central portion and extending in a longitudinal direction. The shape and/or arrangement pattern of the portion is different from the side portion in the central region, and an area ratio of the joint portion is substantially the same as the side portion in the central region, and the number of the joint portions per unit area is the side The area is more than the above central area. 如請求項1之吸收性物品，其中於上述正面片材中，在將形成於上述中央區域之上述接合部中之面積最大者之該面積設為C，將形成於上述側部區域之上述接合部中之面積最大者之該面積設為D時，具有C＞D之關係。The absorbent article according to claim 1, wherein in the front sheet, the area of the largest portion of the joint portion formed in the central portion is C, and the joint formed in the side portion is formed. When the area of the largest area is set to D, the relationship of C>D is obtained. 如請求項1之吸收性物品，其中於上述正面片材中，在將形成於上述中央區域之上述接合部中之沿著長度方向之長度最長者之該長度設為E，將形成於上述側部區域之上述接合部中之沿著長度方向之長度最長者之該長度設為F時，具有E＞F之關係。The absorbent article according to claim 1, wherein in the front sheet, the length of the longest length in the longitudinal direction of the joint portion formed in the central portion is E, which is formed on the side When the length of the longest length along the longitudinal direction among the joint portions of the portion region is F, it has a relationship of E>F. 如請求項1之吸收性物品，其中關於上述正面片材，上述側部區域中之該片材之剪切應力高於上述中央區域中之該片材之剪切應力。The absorbent article of claim 1, wherein, with respect to the front sheet, the shear stress of the sheet in the side portion is higher than the shear stress of the sheet in the central portion. 如請求項1之吸收性物品，其具有穿著時配置於穿著者之腹側之腹側部、配置於背側之背側部、及位於其等之間之胯下部， 上述中央區域及上述側部區域形成於上述胯下部。The absorbent article according to claim 1, which has a ventral side portion disposed on the ventral side of the wearer when worn, a back side portion disposed on the back side, and a crotch portion disposed between the occipital portion, the central portion and the side The portion region is formed in the lower portion of the above-mentioned crotch. 如請求項1之吸收性物品，其具有穿著時配置於穿著者之腹側之腹側部、配置於背側之背側部、及位於其等之間之胯下部， 上述中央區域及上述側部區域自上述胯下部遍及至上述腹側部及上述背側部之任一者或兩者而形成。The absorbent article according to claim 1, which has a ventral side portion disposed on the ventral side of the wearer when worn, a back side portion disposed on the back side, and a crotch portion disposed between the occipital portion, the central portion and the side The region is formed from the lower portion of the crotch to either or both of the abdominal portion and the back portion. 如請求項1之吸收性物品，其中上述中央區域之寬度相對於上述正面片材之寬度為30%以上70%以下。The absorbent article of claim 1, wherein the width of the central region is 30% or more and 70% or less with respect to the width of the front sheet. 如請求項1之吸收性物品，其中上述側部區域之寬度相對於上述正面片材之寬度為15%以上35%以下。The absorbent article according to claim 1, wherein the width of the side portion is 15% or more and 35% or less with respect to the width of the front sheet. 如請求項1之吸收性物品，其中上述側部區域之寬度之總和相對於上述正面片材之寬度為30%以上70%以下。The absorbent article according to claim 1, wherein the sum of the widths of the side portions is 30% or more and 70% or less with respect to the width of the front sheet. 如請求項1之吸收性物品，其中上述正面片材於上述中央區域及上述側部區域之任一者中，均係上述第2片材側之面大致平坦，且於上述第1片材側形成有起伏較大之凹凸。The absorbent article according to claim 1, wherein the front sheet is substantially flat on the second sheet side in the central portion and the side portion, and is on the first sheet side. The undulations are formed with large undulations. 如請求項1之吸收性物品，其具有相當於穿著者之前後方向之縱向、及與該縱向正交之橫向， 於上述正面片材之上述中央區域中，形成有2種上述接合部，該2種接合部在均呈具有沿著上述長度方向及上述寬度方向之邊之矩形之方面而言一致，但呈互不相同之形狀。The absorbent article according to claim 1, which has a longitudinal direction corresponding to a front and rear direction of the wearer and a transverse direction orthogonal to the longitudinal direction, and two types of the joint portions are formed in the central region of the front sheet. The two types of joint portions are identical in that they have a rectangular shape along the longitudinal direction and the side in the width direction, but have different shapes from each other. 如請求項1之吸收性物品，其具有相當於穿著者之前後方向之縱向、及與該縱向正交之橫向， 於上述正面片材之上述中央區域中，形成有沿著上述長度方向並隔開特定之距離而配置為行狀之2種上述接合部， 一種接合部形成第1接合部行，另一種接合部形成交替地配置於相鄰之上述第1接合部行之間之第2接合部行及第3接合部行， 上述第2接合部行與上述第3接合部行係沿著上述長度方向之上述另一種接合部之間距相同，且相位錯開半個間距。An absorbent article according to claim 1, which has a longitudinal direction corresponding to a front and rear direction of the wearer and a transverse direction orthogonal to the longitudinal direction, and is formed along the longitudinal direction in the central region of the front sheet. Two kinds of the joint portions arranged in a line shape at a specific distance, one joint portion forming a first joint portion row, and the other joint portion forming a second joint portion alternately arranged between adjacent ones of the first joint portion rows In the row and the third joining portion row, the second joining portion row and the third joining portion row are the same in the distance between the other joining portions in the longitudinal direction, and the phase is shifted by a half pitch. 如請求項1之吸收性物品，其具有相當於穿著者之前後方向之縱向、及與該縱向正交之橫向， 於上述中央區域形成有2種上述凸部， 一種凸部呈沿著上述寬度方向之長度長於沿著上述長度方向之長度之大致橢圓形之俯視形狀，另一種凸部呈沿著上述寬度方向之長度與沿著上述長度方向之長度大致相同之大致圓形之俯視形狀。An absorbent article according to claim 1, which has a longitudinal direction corresponding to a front and rear direction of the wearer and a transverse direction orthogonal to the longitudinal direction, and two kinds of the convex portions are formed in the central portion, and a convex portion is along the width The length of the direction is longer than the substantially elliptical top view along the length in the longitudinal direction, and the other type of convex portion has a substantially circular plan view shape having a length along the width direction and a length substantially the same along the length direction. 如請求項1之吸收性物品，其具有相當於穿著者之前後方向之縱向、及與該縱向正交之橫向， 於上述側部區域，形成有2種上述接合部，該2種接合部在均呈具有沿著上述長度方向及上述寬度方向之邊之矩形之方面而言一致，但呈互不相同之形狀。An absorbent article according to claim 1, which has a longitudinal direction corresponding to a front and rear direction of the wearer and a transverse direction orthogonal to the longitudinal direction, and two kinds of the joint portions are formed in the side portion, and the two types of joint portions are Each of them has a rectangular shape having a side along the longitudinal direction and the width direction, but has a shape different from each other. 如請求項1之吸收性物品，其具有相當於穿著者之前後方向之縱向、及與該縱向正交之橫向， 於上述側部區域，形成有沿著上述長度方向並隔開特定之距離而配置為行狀之2種上述接合部， 一種接合部形成第4接合部行， 另一種接合部形成與上述第4接合部行交替地配置於上述寬度方向之第5接合部行， 上述第4接合部行中之上述一種接合部之間距與上述第5接合部行中之上述另一種接合部之間距均相同，於上述第4接合部行與上述第5接合部行，上述接合部之配置錯開半個間距。An absorbent article according to claim 1, which has a longitudinal direction corresponding to a front and rear direction of the wearer and a transverse direction orthogonal to the longitudinal direction, and the side portion is formed along the longitudinal direction and spaced apart by a specific distance. Two types of the joint portions arranged in a row shape, one joint portion forming a fourth joint portion row, and the other joint portion forming a fifth joint portion row alternately arranged in the width direction with the fourth joint portion row, the fourth joint The distance between the above-mentioned joint portions in the row and the distance between the other joint portions in the fifth joint portion row are the same, and the arrangement of the joint portions is shifted in the fourth joint portion row and the fifth joint portion row. Half a pitch. 如請求項1之吸收性物品，其中於上述中央區域形成有2種上述凸部， 上述2種凸部為不同之高度。The absorbent article according to claim 1, wherein two types of the convex portions are formed in the central region, and the two convex portions have different heights. 如請求項1之吸收性物品，其中相較於配置於上述中央區域之上述凸部之高度，配置於上述側部區域之上述凸部更低，或者兩者之高度相同。The absorbent article according to claim 1, wherein the convex portion disposed in the side portion is lower than the height of the convex portion disposed in the central region, or the heights of the two are the same. 如請求項1之吸收性物品，其中於上述中央區域與上述側部區域，上述接合部之配置圖案不同，且該接合部之形狀亦不同。The absorbent article according to claim 1, wherein the arrangement pattern of the joint portion is different between the central portion and the side portion, and the shape of the joint portion is different. 如請求項1之吸收性物品，其中上述中央區域及上述側部區域中之上述接合部之面積率為10%以上40%以下。The absorbent article according to claim 1, wherein an area ratio of the joint portion in the central region and the side portion is 10% or more and 40% or less. 如請求項1之吸收性物品，其中在將形成於上述側部區域之上述接合部中之面積最大者之該面積設為C，將形成於上述中央區域之上述接合部中之面積最大者之該面積設為D之情形時， 面積D為面積C之20%以上80%以下。The absorbent article according to claim 1, wherein the area of the joint portion formed in the side portion is the largest, and the area of the joint portion formed in the central portion is the largest. When the area is set to D, the area D is 20% or more and 80% or less of the area C. 如請求項1之吸收性物品，其中在將形成於上述側部區域之上述接合部中之面積最大者之該面積設為C，將形成於上述中央區域之上述接合部中之面積最大者之該面積設為D之情形時， 上述面積C之接合部之面積之總和於上述中央區域之接合部之面積之總和中所占之比率為20%以上80%以下。The absorbent article according to claim 1, wherein the area of the joint portion formed in the side portion is the largest, and the area of the joint portion formed in the central portion is the largest. When the area is set to D, the ratio of the sum of the areas of the joint portions of the areas C to the total area of the joint portions of the central portion is 20% or more and 80% or less. 如請求項1之吸收性物品，其中在將形成於上述側部區域之上述接合部中之面積最大者之該面積設為C，將形成於上述中央區域之上述接合部中之面積最大者之該面積設為D之情形時， 上述面積D之接合部之面積之總和於上述側部區域之接合部之面積之總和中所占之比率為80%以上100%以下。The absorbent article according to claim 1, wherein the area of the joint portion formed in the side portion is the largest, and the area of the joint portion formed in the central portion is the largest. When the area is set to D, the ratio of the sum of the areas of the joint portions of the area D to the total area of the joint portions of the side portions is 80% or more and 100% or less. 如請求項1之吸收性物品，其具有相當於穿著者之前後方向之縱向、及與該縱向正交之橫向， 在將形成於上述中央區域之上述接合部中之沿著上述長度方向之長度最長者之該長度設為E，將形成於上述側部區域之上述接合部中之沿著上述長度方向之長度最長者之該長度設為F時， 上述長度F為上述長度E之20%以上80%以下。An absorbent article according to claim 1, which has a longitudinal direction corresponding to a front and rear direction of the wearer and a transverse direction orthogonal to the longitudinal direction, and a length along the longitudinal direction of the joint portion to be formed in the central region The length of the longest member is E, and when the length of the longest length in the longitudinal direction among the joint portions formed in the side portion is F, the length F is 20% or more of the length E. 80% or less. 如請求項1之吸收性物品，其中在將形成於上述中央區域之上述接合部中之沿著上述長度方向之長度最長者之該長度設為E，將形成於上述側部區域之上述接合部中之沿著上述長度方向之長度最長者之該長度設為F時， 上述中央區域之、上述長度E之接合部之面積之總和於上述接合部之面積之總和中所占之比率為20%以上100%以下。The absorbent article according to claim 1, wherein the length of the longest length along the longitudinal direction of the joint portion formed in the central region is E, and the joint portion formed in the side portion is formed. When the length of the longest length along the longitudinal direction is F, the ratio of the sum of the areas of the joint portions of the length E and the area of the joint portion to the total area of the joint portion is 20%. Above 100%. 如請求項1之吸收性物品，其中在將形成於上述中央區域之上述接合部中之沿著上述長度方向之長度最長者之該長度設為E，將形成於上述側部區域之上述接合部中之沿著上述長度方向之長度最長者之該長度設為F時， 上述側部區域之、上述長度F之接合部之面積之總和於上述接合部之面積之總和中所占之比率為60%以上100%以下。The absorbent article according to claim 1, wherein the length of the longest length along the longitudinal direction of the joint portion formed in the central region is E, and the joint portion formed in the side portion is formed. When the length of the longest length along the longitudinal direction is F, the ratio of the sum of the areas of the joint portions of the side portions F and the area of the joint portion is 60. % or more is 100% or less. 如請求項1之吸收性物品，其中上述中央區域之剪切應力之值為25 N以上34 N以下。The absorbent article of claim 1, wherein the shear stress of the central region is 25 N or more and 34 N or less. 如請求項1之吸收性物品，其中上述側部區域之剪切應力之值以高於上述中央區域之剪切應力為條件，為33 N以上45 N以下。The absorbent article according to claim 1, wherein the value of the shear stress in the side region is 33 N or more and 45 N or less on the condition that the shear stress is higher than the central portion. 如請求項1之吸收性物品，其中在將上述中央區域中之上述凸部之面積最大者之該面積設為Smax ，將上述側部區域中之上述凸部之面積最大者之該面積設為Mmax 之情形時，滿足Smax ＞Mmax 之關係。The absorbent article according to claim 1, wherein the area in which the area of the convex portion in the central region is the largest is S max , and the area in which the area of the convex portion in the side portion is the largest is set. M max is the case, satisfy S max> M max of the relationship. 如請求項1之吸收性物品，其中作為構成上述第1片材及上述第2片材之片材材料而使用之不織布之基重分別獨立地為10 g/m2 以上40 g/m2 以下。The absorbent article according to claim 1, wherein the basis weight of the nonwoven fabric used as the sheet material constituting the first sheet and the second sheet is independently 10 g/m 2 or more and 40 g/m 2 or less. .
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