TW201828901A - Absorbent article - Google Patents

Absorbent article Download PDF

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Publication number
TW201828901A
TW201828901A TW106144760A TW106144760A TW201828901A TW 201828901 A TW201828901 A TW 201828901A TW 106144760 A TW106144760 A TW 106144760A TW 106144760 A TW106144760 A TW 106144760A TW 201828901 A TW201828901 A TW 201828901A
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TW
Taiwan
Prior art keywords
protruding
region
absorbent core
absorbent
skin
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TW106144760A
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Chinese (zh)
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TWI758380B (en
Inventor
林由佳
廣瀨祐一
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日商花王股份有限公司
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Publication of TW201828901A publication Critical patent/TW201828901A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47Sanitary towels, incontinence pads or napkins
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/47Sanitary towels, incontinence pads or napkins
    • A61F13/475Sanitary towels, incontinence pads or napkins characterised by edge leakage prevention means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/531Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
    • A61F13/532Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00Bandages or dressings; Absorbent pads
    • A61F13/15Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/531Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
    • A61F13/532Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
    • A61F13/533Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad having discontinuous areas of compression

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)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

An absorbent article (1) is provided with an absorbent core (41). The absorbent core (41) has a protruding part (42) protruding toward a non-skin-side sheet (3) in an excretion-facing zone (B). The protruding part (42) has a thickness greater than the thickness of a first region 41F and a second region 41R of the absorbent core (41). The protruding part (42) has a largest-width part where the length thereof in a transverse direction (Y) orthogonal to a longitudinal direction (X) of the absorbent core (41) is greatest in plan view, and the length of the largest-width part in the transverse direction (Y) is the same as the length of the absorbent core (41) in the transverse direction (Y).

Description

吸收性物品Absorbent article

本發明係關於生理用衛生棉、失禁墊等之吸收性物品。The present invention relates to absorbent articles for sanitary napkins, incontinence pads and the like.

一直以來,在生理用衛生棉、一次性尿布等之吸收性物品中,在排泄之體液較多時,有時在日常生活行動中亦發生液體漏出。因此,提出了如下方案:藉由在吸收性物品之吸收性芯中,在中央部分設置基重較大之中高部分從而以較廣的範圍進行體液之吸收(例如專利文獻1至2)。 在專利文獻1中記載有如下吸收性物品:在吸收性物品之吸收性芯中,在中央區域設置有比其他部分之高度高且密度亦高之中央部,且該中央部配置成與吸收性芯之橫寬(寬度)相等。 另外,在專利文獻2中記載有如下吸收性物品:吸收性物品之吸收體包含處於層疊狀態的上方吸收部及下方吸收部,且上方吸收部之寬度及下方吸收部之寬度為相同的尺寸。 另外,作為與此等技術不同之其他技術,本申請人先前自提高對身體形狀之追隨性之觀點出發,提議了如下吸收性物品:具有在吸收性芯之排泄部相對部中,寬度方向之中央區域向非肌膚側片突出的吸收體(專利文獻3)。 現有技術文獻 專利文獻 專利文獻1:日本特開昭61-602號公報 專利文獻2:日本特開2012-81246號公報 專利文獻3:日本特開2016-86872號公報In the absorbent articles such as sanitary napkins and disposable diapers, when a large amount of body fluid is excreted, liquid leakage may occur in daily life operations. Therefore, a solution has been proposed in which the absorption of body fluid is performed in a wide range by providing a large portion of the base weight in the absorbent core of the absorbent article (for example, Patent Documents 1 to 2). Patent Document 1 discloses an absorbent article in which an absorbent core of an absorbent article is provided with a central portion having a height higher than that of other portions and having a high density in the central region, and the central portion is disposed to be absorbent. The width (width) of the core is equal. Further, Patent Document 2 discloses an absorbent article in which the absorbent body of the absorbent article includes an upper absorbent portion and a lower absorbent portion in a stacked state, and the width of the upper absorbent portion and the width of the lower absorbent portion are the same size. Further, as another technique different from these techniques, the applicant has previously proposed an absorbent article having a width direction in the opposing portion of the excretory portion of the absorbent core from the viewpoint of improving the followability to the body shape. An absorbent body in which the central region protrudes toward the non-skin side sheet (Patent Document 3). CITATION LIST Patent Literature PTL No. JP-A-61-602

本發明係關於一種吸收性物品,其包含:吸收體,該吸收體包含在與穿著者之前後方向對應之縱向上較長的形狀之吸收性芯;肌膚側片,其包覆該吸收體之肌膚相對面;及非肌膚相對面,其包覆該吸收體之非肌膚相對面,且該吸收性物品具有前方區域及後方區域。上述吸收性芯在位於上述前方區域側之第一區域與位於上述後方區域側之第二區域之間具有中間區域,該中間區域包含厚度比該第一區域及該第二區域之厚度厚的突出部。上述突出部向上述非肌膚側片突出,且肌膚相對面形成為平坦狀。俯視上述吸收性芯時,上述突出部具有在與該吸收性芯之上述縱向正交之橫向上的長度最大之最大寬度部,該最大寬度部之橫向的長度與上述吸收性芯之該橫向的長度相同。The present invention relates to an absorbent article comprising: an absorbent body comprising an absorbent core having a longitudinally long shape corresponding to a front and rear direction of the wearer; a skin side panel covering the absorbent body The opposite side of the skin; and the non-skin opposing surface, which covers the non-skin opposing surface of the absorbent body, and the absorbent article has a front area and a rear area. The absorptive core has an intermediate region between a first region on the side of the front region and a second region on the side of the rear region, the intermediate region including a protrusion having a thickness thicker than a thickness of the first region and the second region unit. The protruding portion protrudes toward the non-skin side sheet, and the skin facing surface is formed in a flat shape. When the absorbent core is viewed from above, the protruding portion has a maximum width portion having a maximum length in a lateral direction orthogonal to the longitudinal direction of the absorbent core, and a lateral length of the maximum width portion is transverse to the transverse direction of the absorbent core The length is the same.

在專利文獻1至2中公開了利用配置於吸收性芯之中央部分之基重較大的中高部分來提高吸收量之技術,但就關於使其向非肌膚側片突出之內容並未作任何記載,在專利文獻1至2所記載之吸收性物品中,在中高部分之台階與正面片之間產生間隙,擔心會發生因排出液體無法迅速地在吸收體擴散而引起之漏出,或因中高部分之階差而導致穿戴者有不適感。另外,在專利文獻3中記載有在吸收性芯之排泄部相對部中,使中央突出部向非肌膚側片突出的吸收性物品。專利文獻3所記載之吸收性物品提高了穿著時之貼合感,但該中央突出部無在吸收性芯之整個寬度上形成,擔心在穿戴時或使用時發生該中央突出部與排泄部分發生位置偏移時引起液體漏出。 因此本發明之課題係提供一種能夠消除上述現有技術之缺點的吸收性物品。 以下基於作為本發明之吸收性物品之一個較佳實施方式的生理用衛生棉1 (以下亦稱為「衛生棉1」)參照附圖對本發明之吸收性物品進行說明。在圖1中表示自肌膚側片2側觀察本實施方式之衛生棉1的平面圖。如圖1所示,衛生棉1包含:包含在與穿著者之前後方向對應之縱向X上較長之形狀的吸收性芯41之吸收體4;包覆吸收體4之肌膚相對面的肌膚側片2;及包覆吸收體4之非肌膚相對面的非肌膚側片3,衛生棉1具有前方區域A及後方區域C。如圖1所示,衛生棉1劃分為與穿著者之液體排泄部相對配置之排泄相對區域B及在該排泄相對區域B之縱向X之前後配置的前方區域A及後方區域C。 在本說明書中,縱向X與穿著者之前後方向對應,與吸收性物品(衛生棉1)之長度方向一致,橫向Y與吸收性物品(衛生棉1)之寬度方向(與長度方向正交之方向)一致。因而,在無特別說明時,在本說明書中,縱向X之長度指作為在縱向X量測出之距離的「長度」,橫向Y之長度指作為在橫向Y量測出之距離的「寬度」。衛生棉1形成為關於在縱向X上延伸之中心線CL左右對稱。縱向X係與中心線CL平行之方向。另外,在本說明書中,肌膚相對面係吸收性物品(衛生棉1)或其構成部件中在吸收性物品(衛生棉1)穿著時朝向穿著者之肌膚側的面,非肌膚相對面係吸收性物品(衛生棉1)或其構成部件中在吸收性物品(衛生棉1)穿著時朝向與肌膚側相反之一側(穿衣服一側)的面。 衛生棉1具有在穿著時與穿著者之液體排泄部(陰道口等)相對配置之排泄相對區域B、配置於比該排泄相對區域B靠穿著者之腹側(前側)的前方區域A及配置於比該排泄相對區域B靠穿著者之背側(後側)的後方區域C。即,衛生棉1在縱向X上被依次劃分為前方區域A、排泄相對區域B及後方區域C。 此外,在本發明之吸收性物品中,在如本實施方式之衛生棉1一般具有翼部1W之情況下,排泄相對區域B指在縱向X上具有翼部1W之區域(夾在一側之翼部1W之沿著縱向X的根部與另一側之翼部1W之沿著縱向X之根部之間的區域)。另外,在為不具有翼部1W之吸收性物品之情況下,排泄相對區域B指將吸收性物品以三折之單個包裝形態摺疊時產生的、在橫向Y橫穿該吸收性物品之兩條摺線(未圖示)中,被自該吸收性物品之縱向X之前端起的第一摺線及第二摺線圍著的區域。 如圖1所示,本實施方式之衛生棉1具有形成肌膚相對面之液體透過性的肌膚側片2、形成非肌膚相對面之非肌膚側片3及介於此兩個片2、3之間的吸收體4。吸收體4由吸收性芯41及包裹該吸收性芯41之包芯片(未圖示)構成。 在衛生棉1中,如圖1所示,肌膚側片2包覆吸收體4之肌膚相對面的整個區域,且自吸收體4之沿著縱向X之兩側緣向橫向Y的外側延伸。另一方面,非肌膚側片3包覆吸收體4之非肌膚相對面之整個區域,且進一步自肌膚側片2之沿著縱向X之兩側緣向橫向Y的外側延伸,與下述側片5一同形成側翼部1S。非肌膚側片3與側片5在自吸收體4之沿著縱向X之兩側緣起的延伸部利用黏接劑、熱封合、超音波封合等公知之接合方法相互接合。另外,肌膚側片2及非肌膚側片3各自與吸收體4之間亦可以利用黏接劑接合。 在衛生棉1中,如圖1所示,側片5配置於肌膚側片2之肌膚相對面中之沿著縱向X的兩個側部。較佳側片5以俯視時與肌膚側片2之沿著縱向X之左右兩側部重疊的方式,在肌膚側片2之縱向X的全長上配置。 在衛生棉1中,如圖1所示,一對側片5、5各自在接合部6接合於肌膚側片2。曲線形成之對橫向Y之凹凸交替地在縱向X上連續配置而得到之波狀的接合部6,在俯視時以中心線CL為中心在橫向Y上對稱地配置有一對。如此,側片5在波狀的接合部6接合並固定於肌膚側片2,則在比配置成波狀的接合部6之接合部組靠橫向Y之內側的位置,形成由側片5與肌膚側片2劃分出之空間部。該空間部向中心線CL開口,因此,自橫向Y之中央流向外側的經血等體液收納於該空間部,其結果係能夠有效防止體液之漏出。 在衛生棉1中,如圖1所示,側翼部1S在排泄相對區域B向橫向Y之外側大幅伸出,由此在衛生棉1之沿著縱向X之左右兩側延伸設置有一對翼部1W、1W。翼部1W用於回折至短褲等衣物之襠部的非肌膚相對面側。另外,如圖1所示,肌膚側片2及非肌膚側片3分別自吸收體4之縱向X之前端及後端向縱向X的外側延伸,在此等延伸部利用黏接劑、熱封合、超音波封合等公知之接合方法相互接合而形成端部封合部。 在衛生棉1中,如圖1所示,在肌膚側片2之肌膚相對面形成有由肌膚側片2及吸收體4向非肌膚側片3側一體凹陷而形成的線狀壓縮槽7。所謂線狀壓縮槽7中之「線狀」並不限於槽(凹陷部)之形狀在俯視時為直線,亦包含曲線。其中,各線既可以係連續線,亦可以係如虛線等一般之不連續線。在衛生棉1中,線狀壓縮槽7由不連續之多個點壓紋所形成的行構成。線狀壓縮槽7中,肌膚側片2及吸收體4之作為構成部件之各個纖維的密度比該線狀壓縮槽7之周圍部的密度高。線狀壓縮槽7在吸收體4之前方區域A及後方區域C具有分別在橫向Y上延伸的第一橫壓縮槽71,在吸收體4之排泄相對區域B的沿著縱向X之兩側部具有在縱向X上延伸的縱壓縮槽73。在衛生棉1中,第一橫壓縮槽71係向縱向X外側凸出之曲線,縱壓縮槽73係在排泄相對區域B向橫向Y外側凸出的曲線。第一橫壓縮槽71在一對縱壓縮槽73之內側,跨一對縱壓縮槽73在橫向Y上延伸。在衛生棉1中,前方區域A之第一橫壓縮槽71、一側之縱壓縮槽73、後方區域C的第一橫壓縮槽71、另一側之縱壓縮槽73相連接而形成為環狀的整周槽。如此形成之線狀壓縮槽7能夠抑制體液向吸收體4之平面方向的擴散,進而有效地防止液體自衛生棉1之四周漏出。 在衛生棉1中,如圖2所示,構成吸收體4之吸收性芯41在位於縱向X之前方區域A側的第一區域41F與位於後方區域C側之第二區域41R之間具有中間區域41M。中間區域41M包含厚度比第一區域41F及第二區域41R之厚度厚的突出部42。在衛生棉1中,中間區域41M配置於排泄相對區域B之區域。吸收性芯41之中間區域41M與衛生棉1之排泄相對區域B在縱向上可以一致亦可以不一致。在衛生棉1中,具有突出部42之中間區域41M在縱向上不僅在排泄相對區域B延伸,且自排泄相對區域B延伸到前方區域A之一部分及後方區域C的一部分。且,在衛生棉1中,如圖2所示俯視時,在衛生棉1之前方區域A之區域內配置有吸收性芯41的第一區域41F,在衛生棉1之後方區域C之區域內配置有吸收性芯41的第二區域41R。 在衛生棉1中,如圖1所示,吸收性芯41具有在與衛生棉1之縱向X相同之方向上較長的形狀。由此,吸收性芯41之縱向係與衛生棉1之縱向X相同的方向,吸收性芯41之橫向係與衛生棉1之橫向Y相同的方向。 如圖3至圖5所示,具有中間區域41M之突出部42向非肌膚側片3突出,在衛生棉1中,肌膚相對面形成為平坦狀。如圖4所示,突出部42之厚度形成為比位於中間區域41M之前方之第一區域41F的厚度及位於中間區域41M之後方之第二區域41R的厚度更厚。較佳為在衛生棉1中,突出部42形成為厚度比吸收性芯41中之第一區域41F的厚度厚,且形成為基重比吸收性芯41中之第一區域41F的基重高。而且,在衛生棉1中,突出部42之厚度形成為厚度比吸收性芯41中之第二區域41R的厚度厚,且形成為基重比吸收性芯41中之第二區域41R的基重高。與突出部42之厚度及基重相比之第一區域41F及第二區域41R各自之厚度及基重係指,在第一區域41F及第二區域41R形成有下述槽部45時,第一區域41F及第二區域41R中不存在下述槽部45之部分的厚度及基重。衛生棉1之吸收性芯41係對芯材料之基重設置差異而設置厚度差,因此,與將基重均勻之吸收性芯之一部分壓縮而設置厚度差之情況不同,吸收性芯41整體上柔軟。 如上文所述,突出部42之肌膚相對面形成為平坦狀。此處,所謂「肌膚相對面平坦」不僅係指吸收性芯41之突出部42中之肌膚側片2側的肌膚相對面為完全平坦狀態,亦包含因纖維積纖時之位置而引起的積纖量之偏差、加壓時之變形、其他製造步驟等中產生的、在肌膚相對面之一部分形成了寬5mm左右、深2mm左右的凹凸之狀態。由此,在衛生棉1中,突出部42成為在肌膚相對面側不具有基重比吸收性芯41中之第一區域41F及第二區域41R之基重低的凹部之形態。此處,在第一區域41F及第二區域41R具有槽部45時,第一區域41F及第二區域41R之基重係指除槽部45以外之部分的基重。在突出部42之肌膚相對面側存在低基重的凹部時,不僅會阻礙排泄液縱向、橫向地向水平方向快速擴散,容易發生因液體之吸收量減少或吸收速度降低而引起之回液等,而且更易在衛生棉1中發生意想不到之皺折或斷裂。假設在突出部42之肌膚相對面存在作為在縱向X上縱穿突出部42之縱槽部之低基重的凹部時,可設想不僅突出部42易被該縱槽在橫向Y上切斷,在穿著時更易產生以縱槽部為起點在衛生棉1沿著縱向之皺折,而且亦可能以該縱槽部為基點發生因衛生棉1之穿著者之動作而使吸收性芯被切斷的情況。若吸收性芯如此被切斷,則在衛生棉1與身體間易產生間隙、吸收容量顯著降低,因而成為所謂液體漏出之原因。進一步,藉由對肌膚相對面為平坦之吸收性芯41,在之後的製程中使肌膚側片2及吸收體4向非肌膚側片3側一體地凹陷而形成線狀壓縮槽7,更不易發生液體漏出。 在衛生棉1中,如圖4所示,吸收性芯41在肌膚相對面具有自第一區域41F經過中間區域41M至第二區域41R的厚度均勻之連續層RS。連續層RS在衛生棉1中形成於吸收性芯41之肌膚相對面的前部面。連續層RS之厚度與在下述之突出邊界槽部43處之吸收性芯41的厚度或者在突出邊界槽部43處之吸收性芯41的厚度相同。 自使突出部42向作為穿著者之非肌膚側的非肌膚側片3突出,從而確保吸收性芯41之液體吸收量的觀點出發,突出部42之厚度較佳為吸收性芯41中之第一區域41F及第二區域41R之厚度的120% (即1.2倍)以上,更佳為140%以上,另外,較佳為700%以下,更佳為500%以下,另外,自穿著時對身體之追隨性及抑制不適感之觀點出發,較佳為120%以上且700%以下,更佳為140%以上且500%以下。另外,用突出部42之厚度與第一區域41F或第二區域41R之厚度的厚度差(前者-後者)表示之突出高度較佳為1.0 mm以上,更佳為2.0 mm以上,另外,較佳為8.0 mm以下,更佳為6.0 mm以下,另外,較佳為1.0 mm以上且8.0 mm以下,更佳為2.0 mm以上且6.0 mm以下。上述結構在如本實施方式之衛生棉1一般之突出部42設置於排泄相對區域B時尤為有效。 另外,突出部42之厚度較佳為2.0 mm以上,更佳為3.0mm以上,另外,較為10.0 mm以下,更佳為7.0 mm以下,另外,較佳為2.0 mm以上且10.0 mm以下,更佳為3.0 mm以上且7.0 mm以下。此外,較佳在突出部42之整個範圍中為上述厚度關係,但在突出部42之厚度方向上設置有厚度增減之情況下,在最厚之部分為上述關係即可。 此外,較佳在突出部42之整個範圍中為上述厚度關係,但在突出部42之厚度方向上,在橫向Y或者縱向X或者此兩個方向上設有漸進之厚度增減的情況下,在最厚之部分為上述關係即可。 另外,第一區域41F或第二區域41R之厚度較佳為0.5 mm以上,更佳為1.0 mm以上,另外,較佳為7.0 mm以下,更佳為3.5 mm以下,另外,較佳為0.5 mm以上且7.0 mm以下,更較佳為1.0 mm以上且3.5 mm以下。 在衛生棉1中,第一區域41F或第二區域41R之厚度較佳為在不存在下述槽部45之部分大致均勻地形成,但在第一區域41F或第二區域41R之橫向Y或縱向X上設有漸進之厚度增減時,在最厚之部分為上述關係即可。 突出部42、第一區域41F或第二區域41R、下述突出鄰接部44等吸收性芯41之各部分之厚度利用以下方法量測。 <吸收性芯41之各部分之厚度的量測方法> 將吸收性芯以無皺折及折彎之方式靜置於水平之場所,自該吸收性芯41切出作為量測對象物之突出部42、第一區域41F或第二區域41R等。接著,量測切出之量測對象物在5 cN/cm2 之負載下的厚度。具體而言,在厚度之量測中,使用例如厚度計PEACOCK DIAL UPRIGHT GAUGES R5-C (OZAKI MFG. CO. LTD.製造)。此時,在厚度計之前端部與切出之量測對象物之間配置以使負載成為5 cN/cm2 之方式調整了大小之俯視為圓形或正方形之板(厚度5 mm左右之丙烯酸板),量測厚度。在量測吸收性芯41中之第一區域41F或第二區域41R等之厚度時,以不包含下述槽部45之狀態進行量測。 在衛生棉1中,自使突出部42向作為穿著者之非肌膚側的非肌膚側片3突出從而確保吸收性芯41之液體吸收量的觀點出發,吸收性芯41中突出部42之基重較佳為100 g/m2 以上,更佳為200 g/m2 以上,且,較佳為1500 g/m2 以下,更佳為1200 g/m2 以下,具體而言,較佳為100g/m2 以上且1500 g/m2 以下,更佳為200 g/m2 以上且1200 g/m2 以下。另外,吸收性芯41中之第一區域41F之基重或第二區域41R之基重較佳為50 g/m2 以上,更佳為100 g/m2 以上,且,較佳為1000 g/m2 以下,更佳為900 g/m2 以下,具體而言,較佳為50 g/m2 以上且1000 g/m2 以下,更佳為100 g/m2 以上且900 g/m2 以下。第一區域41F之基重或第二區域41R之基重藉由下述方式求出:用在上述之量測吸收性芯41之各部分厚度的量測方法中所說明之切出之突出部42、第一區域41F或第二區域41R之樣品的質量,除以該樣品之肌膚相對面側之面的面積。在量測吸收性芯41中之第一區域41F之基重或第二區域41R等的基重時,以不包含下述槽部45之狀態進行量測。 在衛生棉1中,俯視吸收性芯41,突出部42具有在與吸收性芯41之縱向X正交之橫向Y上長度最大的最大寬度部,該最大寬度部之橫向Y之長度與吸收性芯41之橫向Y的長度相同。較佳為,如圖2所示俯視吸收性芯41時,突出部42包含突出部42之最大寬度部沿著吸收性芯41之沿縱向X之兩側緣在縱向X延伸特定之長度而形成的突出中央部421。換言之,突出中央部421在吸收性芯41之沿著縱向X之兩側緣41s、41s之間帶狀地延伸,在帶狀之突出中央部421之縱向X的全長中具有突出部42之上述最大寬度部。突出中央部421之最大寬度部的橫向Y之長度與吸收性芯41在中間區域41M之最大寬度相同。此外,此處之吸收性芯41之寬度係指包含突出部42之吸收性芯41之寬度。即,觀察突出部42在橫向Y之截面時,若位於比鄰接之第一區域41F及第二區域41R之非肌膚相對面側之表面的高度位置靠非肌膚相對面側之突出部42之寬度(非肌膚側寬度),與位於肌膚相對面側之突出部42的寬度(肌膚側寬度)相同或者非肌膚側寬度大,則突出部42之最大寬度與吸收性芯41之寬度相同。然而,突出部42之最大寬度部較佳係肌膚側寬度與非肌膚側寬度大致相同,特別較佳在厚度方向上大致均勻。 在衛生棉1中,如圖2所示,為了能夠即使以略有偏移之狀態穿著吸收性物品亦能確保充分的吸收量,吸收性芯41較佳為突出中央部421配置於排泄相對區域B,且在排泄相對區域B之區域內使其面積儘可能廣。自此種觀點出發,突出中央部421較佳為在最大寬度部,吸收性芯41之沿著縱向X之兩側緣41s、41s之間間隔一定,更佳為兩側緣41s、41s彼此在縱向X上平行,且形成為直線狀。但是,在製造時,由於吸收性芯41中之突出部42之橫向Y的位置偏差、突出部42之缺口、因生產方法引起之脫模的傾斜、端部之磨圓或倒角等,突出部42之寬度與吸收性芯41之寬度在一定程度上略有不同,例如處於最大寬度部之寬度之5%左右的差之範圍,則視為相同寬度。最大寬度指在橫向Y中最長之位置的距離。此外,在衛生棉1中,突出部42在橫向Y上之最大寬度部之橫向Y的長度與吸收性芯41之中間區域41M之橫向Y的最大長度相同,且與吸收性芯41之橫向Y的最大長度相同。由此,即使以略有偏移之狀態穿著衛生棉1,仍然能夠確保充分之吸收量,更不易發生漏出。 在衛生棉1中,如圖3所示觀察截面時,突出部42之突出中央部421形成為隨著自橫向Y之中央部向沿著縱向X之兩側緣部而其厚度變小。即,配置於突出中央部421中之在縱向X上延伸之中心線CL上的中央部形成得厚度最大。當如此形成突出中央部421時,能夠充分地確保排泄相對區域B中液體之吸收量。 在衛生棉1中,如圖3所示觀察截面時,突出部42之突出中央部421形成為隨著自橫向Y之中央部向沿著縱向X之兩側緣部而其基重變小。即,配置於突出中央部421中之在縱向X上延伸之中心線CL上的中央部形成為基重最大。當如此形成突出中央部421時,能夠提高排泄相對區域B中液體之吸收性等。 衛生棉1之突出中央部421中,如圖3所示觀察截面時,配置於中心線CL上之中央部之厚度(T1)與在厚度最小之側緣41s的厚度(T2)之比(T1/T2),自突出部能夠儘可能無間隙地緊貼於排泄部之觀點出發,較佳為1.1以上,特別較佳為1.3以上,另外,自不易帶來穿著時之不適感之觀點出發,較佳為4以下,特別較佳為3以下,具體而言,較佳為1.1以上且4以下,特別較佳為1.3以上且3以下。 另外,突出部42包含前方側凸部422或後方側凸部423,前方側凸部422或後方側凸部423以與突出部42之上述最大寬度部相比橫向Y之長度變窄之方式自突出中央部421向前方區域A側或後方區域C側凸出。換言之,如圖2所示俯視吸收性芯41時,突出部42至少具有自突出中央部421之縱向X之前端部向第一區域41F側凸出之前方側凸部422及自突出中央部421之縱向X之後端部向第二區域41R側凸出之後方側凸部423中的任一者,在衛生棉1中,突出部42具有前方側凸部422及後方側凸部423。即,在衛生棉1中,突出部42劃分為前方側凸部422、突出中央部421及後方側凸部423。 在衛生棉1中,如圖2所示,吸收性芯41中之前方側凸部422在突出中央部421之前端部配置有一個、且後方側凸部423在突出中央部421之後端部配置有一個。前方側凸部422中,前方側凸部422之頂部422t配置於在縱向X上延伸之中心線CL上,形成前方側凸部422之兩側邊422s、422s分別自頂部422t起至吸收性芯41之沿著縱向X之側緣41s以直線形狀延伸。後方側凸部423與前方側凸部422同樣,後方側凸部423之頂部423t配置於在縱向X上延伸之中心線CL上,形成後方側凸部423之兩側邊423s、423s分別自頂部423t起至吸收性芯41之沿著縱向X之側緣41s延伸。 在衛生棉1中,如圖2所示,吸收性芯41中之前方側凸部422及後方側凸部423分別形成為自沿著縱向X之兩側部向位於橫向Y之中央部之頂部422t、423t而其寬度d遞減。較佳為,在衛生棉1之吸收性芯41中之前方側凸部422,兩側邊422s、422s之間隔(寬度d)自吸收性芯41之沿著縱向X之兩側緣41s、41s向頂部422t遞減。同樣的,衛生棉1之吸收性芯41中之後方側凸部423中,兩側邊423s、423s之間隔(寬度d)自吸收性芯41之沿著縱向X之兩側緣41s、41s向頂部423t遞減。此處,寬度d遞減係指寬度d隨著向頂部422t、423t而連續之逐漸減少。 關於衛生棉1中之吸收性芯41,當以前方側凸部422及後方側凸部423中之前方側凸部422為例進行說明時,如圖2所示,兩側邊422s、422s各自不彎曲地筆直地延伸。自提高對身體形狀之貼合性及動作中之追隨性的觀點出發,一側之側邊422s與在縱向X上延伸之中心線CL所成之角α較佳為20°以上,更佳為30°以上,且,較佳為75°以下,更佳為60°以下,具體而言,較佳為20°以上且75°以下,更佳為30°以上且60°以下。後方側凸部423亦與前方側凸部422同樣。 自兼顧確保體液之吸收量及衛生棉1穿著時之貼合性的觀點出發,如圖2所示,突出部42之縱向X之全長L2較佳為吸收性芯41之縱向X之全長L1的25%以上,更佳為30%以上,另外,較佳為80%以下,更佳為75%以下,另外,較佳為25%以上且80%以下,更佳為30%以上且75%以下。 此外,全長L1表示吸收性芯41在縱向X中之最長之位置的距離,全長L2指突出部42在縱向X中之最長之位置的距離。 自充分確保體液之吸收量之觀點出發,如圖2所示,構成突出部42之突出中央部421之縱向X的全長L3較佳為突出部42之全長L2的20%以上,更佳為30%以上,另外,較佳為80%以下,更佳為70%以下,另外,較佳為20%以上且80%以下,更佳為30%以上且70%以下。 如圖2所示,構成突出部42之前方側凸部422之縱向X之全長L4較佳為突出部42之全長L2的5%以上,更佳為10%以上,另外,較佳為50%以下,更佳為30%以下,另外,較佳為5%以上且50%以下,更佳為10%以上且30%以下。構成突出部42之後方側凸部423之縱向X全長亦與前方側凸部422之縱向X的全長L4同樣。 其中,全長L4指前方側凸部422在縱向X中最長之位置的距離。 在衛生棉1中,如圖2、圖4及圖5所示,吸收性芯41在中間區域41M具有劃分突出部42與突出部42以外之部分的邊界之突出邊界槽部43。突出邊界槽部43形成為自吸收性芯41中之非肌膚相對面側向肌膚相對面側凹陷。突出邊界槽部43形成為自吸收性芯41中之非肌膚側片3側之非肌膚相對面向肌膚側片2側凸出地凹陷,在肌膚側片2側形成有作為槽之空洞之頂的頂部。因此,在穿著衛生棉1時,對於來自腿部之向吸收性芯41之橫向Y之內側作用的力,吸收體4容易以突出邊界槽部43為起點折彎,衛生棉1更易沿著身體之形狀三維地貼合。 在衛生棉1中,如圖2所示,突出邊界槽部43具有:前方突出邊界槽部43a,該前方突出邊界槽部43a沿著形成構成突出部42之前方側凸部422之兩側邊422s、422s延伸;及後方突出邊界槽部43c,該後方突出邊界槽部43c沿著形成後方側凸部423之兩側邊423s、423延伸。前方突出邊界槽部43a及後方突出邊界槽部43c在吸收性芯41之橫向Y之全長(整個寬度)中形成。因此,對於來自腿部之向吸收性芯41之橫向Y的內側作用之力,在衛生棉1之縱向不易產生縱向的皺折,衛生棉1更易沿著身體之形狀三維地貼合。由此,在吸收性芯41中利用前方突出邊界槽部43a及後方突出邊界槽部43c劃分與突出部42之邊界。 在衛生棉1中,自提高排泄相對區域B中液體之吸收性等之觀點出發,吸收性芯41中之突出邊界槽部43之槽寬較佳為0.1 mm以上,更佳為0.5 mm以上,另外,較佳為5.0 mm以下,更佳為3.0 mm以下,另外,較佳為0.1 mm以上且5.0 mm以下,更佳為0.5 mm以上且3.0 mm以下。此外,突出邊界槽部43之槽寬及下述厚度以如下方式量測:在與突出邊界槽部43之延伸方向正交的方向將其切斷,根據截面之照片進行量測。 在衛生棉1中,自提高排泄相對區域B中液體之吸收性等的觀點出發,吸收性芯41之在突出邊界槽部43的厚度(在槽之頂部之吸收性芯41的厚度)較佳為0.08 mm以上,更佳為0.15 mm以上,另外,較佳為7.0 mm以下,更佳為3.5 mm以下,另外,較佳為0.08 mm以上且7.0 mm以下,更佳為0.15 mm以上且3.5 mm以下。 在衛生棉1中,突出邊界槽部43之基重比突出部42之基重低,而且基重比吸收性芯41中之第一區域41F之基重及第二區域41R的基重低。此處,在具有下述槽部45時,第一區域41F之基重及第二區域41R之基重指除槽部45外之部分的基重。突出邊界槽部43之基重較佳為10 g/m2 以上,更佳為20 g/m2 以上,並且,較佳為350 g/m2 以下,更佳為250 g/m2 以下,具體而言,較佳為10 g/m2 以上且350 g/m2 以下,更佳為20 g/m2 以上且250 g/m2 以下。此外,突出邊界槽部43之基重藉由如下方式求出:用如在上述吸收性芯41之各部分之厚度的量測方法中所說明之一般切出之突出邊界槽部43之部分的樣品之質量,除以該樣品之肌膚相對面側之面的面積。 在衛生棉1中,如圖2所示,吸收性芯41在其中間區域41M中之除突出部42外且除突出邊界槽部43外之區域具有突出鄰接部44。在衛生棉1中,吸收性芯41之中間區域41M包含突出部42、突出邊界槽部43及突出鄰接部44。在中間區域41M中,突出鄰接部44具有:前方突出鄰接部44a,該前方突出鄰接部44a配置於與構成突出部42之前方側凸部422鄰接的第一區域41F側;及後方突出鄰接部44c,該後方突出鄰接部44c配置於與構成突出部42之後方側凸部423鄰接的第二區域41R側。前方突出鄰接部44a形成為關於在縱向X上延伸之中心線CL左右對稱。前方突出鄰接部44a中比中心線CL靠吸收性芯41之沿著縱向X之一側的側緣41s側之一半的部分中,縱向X之長度形成為自該一側之側緣41s向中心線CL遞減。後方突出鄰接部44c亦與前方突出鄰接部44a同樣,形成為關於在縱向X上延伸之中心線CL左右對稱。後方突出鄰接部44c中比中心線CL靠吸收性芯41之沿著縱向X之一側之側緣41s側的一半之部分中,縱向X之長度形成為自該一側之側緣41s向中心線CL遞減。 在衛生棉1中,如圖4及圖5所示,突出鄰接部44比突出邊界槽部43中空洞之頂部,換言之比突出邊界槽部43中肌膚側片2側的頂部,向非肌膚側片3突出。另外,突出鄰接部44之肌膚相對面形成為平坦的。關於突出鄰接部44,其厚度形成為比突出邊界槽部43之厚度大,且比吸收性芯41中之突出部42之厚度小。更進一步,自對身體活動之追隨性的觀點出發,突出鄰接部44之厚度較佳為與第一區域41F之厚度及第二區域41R之厚度相同或比二者小。此外,自對於身體之活動而反覆變形時之吸收性芯41之強度的觀點出發,突出鄰接部44之厚度亦可以比第一區域41F之厚度及第二區域41R的厚度大。 突出鄰接部44之厚度較佳為0.5 mm以上,更佳為1.0 mm以上,另外,較佳為10.0 mm以下,更佳為7.0 mm以下,另外,較佳為0.5 mm以上且10.0 mm以下,更佳為1.0 mm以上且7.0 mm以下。 突出鄰接部44之厚度基於上述吸收性芯41之各部分之厚度的量測方法量測得出。 在衛生棉1中,突出鄰接部44之基重(單位面積質量)形成為比吸收性芯41之突出部42的基重小,且比突出邊界槽部43之基重大。進一步,自對身體活動之追隨性的觀點出發,突出鄰接部44之基重較佳為吸收性芯41中之第一區域41F之基重及第二區域41R的基重以下。此外,自對於身體之活動反覆變形時的吸收性芯41之強度的觀點出發,突出鄰接部44之基重亦可以比第一區域41F之基重及第二區域41R的基重大。此處,在具有槽部45時,第一區域41F之基重及第二區域41R之基重指除槽部45外之部分的基重。突出鄰接部44之基重較佳為20 g/m2 以上,更佳為50 g/m2 以上,且,較佳為800 g/m2 以下,更佳為700 g/m2 以下,具體而言,較佳為20 g/m2 以上且800 g/m2 以下,更佳為50 g/m2 以上且700 g/m2 以下。此外,突出鄰接部44之基重利用如下方式求出:用如上述吸收性芯41之各部分之厚度的量測方法中所說明之一般切出之突出鄰接部44之樣品的質量,除以該樣品之肌膚相對面側之面的面積。 在衛生棉1中,如圖2所示,吸收性芯41中之第一區域41F及第二區域41R分別具有基重相對較小之槽部45及基重相對較大之小吸收部46。較佳為槽部45包含在縱向X上延伸之縱槽45X及在橫向Y上延伸的橫槽45Y。由此,在第一區域41F及第二區域41R配置有在橫向Y上延伸之槽部(橫槽45Y),且配置有在縱向X上延伸之槽部(縱槽45X)。在縱向X上延伸之縱槽45X在橫向Y上隔開一定間隔而配置,在橫向Y上延伸之橫槽45Y在縱向X上隔開一定間隔而配置。小吸收部46配置於由縱槽44Y及橫槽44X劃分出之柵格之孔的位置。上述第一區域41F及第二區域41R之厚度及基重係指小吸收部46之厚度及基重。包含縱槽45X及橫槽45Y之槽部45之基重形成為,吸收性芯之形成材料之基重比作為第一區域41F及第二區域41R中之槽部以外的部分之小吸收部46低。 在衛生棉1中,在第一區域41F及第二區域41R具有槽部45及小吸收部46且在中間區域41M具有突出部42、突出邊界槽部43及突出鄰接部44之吸收性芯41,其整體一體成形。所謂「一體成形」係指不同於利用黏接劑或壓縮等接合方法將在不同工序中製造出之部件彼此結合,而係使用相同材料並在一個工序中一體地形成。 上述衛生棉1之吸收性芯41能夠例如如圖6(a)所示一般利用積纖裝置製造,該積纖裝置包含積纖筒54,該積纖筒54在外周面具有堆集用凹部55,且在一個方向R上旋轉;及管道(未圖示),將芯材料以飛散狀態供給至該積纖筒54之外周面。 在積纖筒54之外周面之周向上以一定之間隔形成有多個堆集用凹部55。堆集用凹部55之底面56具有由網板等構成的、作為吸引孔發揮作用之多個細孔。 另外,如圖6(a)所示,在一個堆集用凹部55之底面56之一部分形成有用於形成吸收性芯41之中間區域41M的一個凹部56b。另外,在凹部56b,在其底面配置有用於形成劃分突出部42與突出鄰接部44之突出邊界槽部43的第一難通氣性部件57。第一難通氣性部件57配置於與突出邊界槽部43對應之位置,以自凹部56b之底面突出之方式被固定。另外,在與凹部56b鄰接之旋轉方向R之上游側區域及下游側區域的底面56配置有用於形成槽部45之第二難通氣性部件58。第二難通氣性部件58配置於與縱槽44Y及橫槽44X對應之位置,以自堆集用凹部55之底面56突出之方式被固定。第一難通氣性部件57及第二難通氣性部件58可以係非通氣性部件,包含例如金屬、塑膠、陶瓷等。 與包含積纖筒之公知之積纖裝置一般,藉由一邊自堆集用凹部55之底面吸引一邊將混合了吸水性聚合物及紙漿纖維之芯材料供給至管道內,如圖6(b)所示,芯材料在堆集用凹部55內堆積為規定形狀。藉由將該堆積物40自堆集用凹部55脫模而得到吸收性芯41之前體。吸收性芯41之前體在被包芯片(未圖示)包覆後,用轉割機(rotary cutter)等進行切割,並利用傳送帶等之輸送機構在輸送方向上輸送。由此能夠得到吸收性芯41。由此得到之被包芯片(未圖示)包覆之吸收性芯41藉由在一對輥間通過一次或多次等,對整體或部分加壓而被適度地壓縮。由此,在凹部56b堆積之部分形成為基重及厚度均相對較大之突出部42。同樣,由在與凹部56b鄰接之上游側區域及下游側區域堆積之芯材料構成之部分形成為基重相對較小的吸收性芯41中之第一區域41F及第二區域41R。另外,由在凹部56b之第一難通氣性部件57上堆積之芯材料構成之部分形成為比第一區域41F之基重及第二區域41R之基重相對小的突出邊界槽部43之頂部。由在與凹部56b鄰接之上游側區域及下游側區域之第二難通氣性部件58上堆積之芯材料構成之部分形成為比小吸收部46之基重相對小的槽部45之頂部。包含突出邊界槽部43之頂部及槽部45之頂部地自與凹部56b鄰接的上游側區域至下游側區域、由在第一難通氣性部件57及第二難通氣性部件58上堆積之芯材料構成的部分,形成為厚度均勻之連續層RS。 對上述本實施方式之衛生棉1之各構成部件的形成材料進行說明。 形成肌膚相對面之肌膚側片2由具有液體透過性且包括熱可塑性合成樹脂之原料構成,例如能夠較佳使用熱風纖維無紡布、紡黏無紡布、點黏無紡布等之纖維無紡布。作為熱可塑性樹脂之例子能夠列舉:乙烯、丙烯等烯烴類聚合物或聚對苯二甲酸乙酯,但不限於上述例子。肌膚側片2較佳例如基重為10至100 g/m2 ,厚度為0.5至5.0 mm。另外,肌膚側片2能夠無特別限制地使用與該技術領域中一直以來使用之材料相同的材料,亦能夠使用穿孔膜等。 非肌膚側片3由具有難透液性或不透過性且含有熱可塑性合成樹脂之原料構成,例如合成樹脂製膜、合成樹脂製膜與無紡布之層疊體或紡黏-熔噴-紡黏層疊纖維無紡布、熱風纖維無紡布、點黏纖維無紡布、紡黏纖維無紡布等耐水壓高之撥水性之無紡布,但不限於此,能夠無特別限制地使用與該技術領域中一直以來所使用之材料相同的材料。非肌膚側片3較佳例如基重為10至50 g/m2 ,厚度為8至200 μm。 吸收性芯41之芯材料包括具有紙漿纖維等纖維材料之纖維集合體。作為纖維材料,能夠無特別限制地使用一直以來在生理用衛生棉、護墊、一次性尿布等吸收性物品之吸收體中所使用的各種材料,例如能夠使用紙漿纖維、人造纖維、棉纖維等之纖維素類纖維的短纖維、聚乙烯等合成纖維之短纖維等。此等纖維能夠單獨使用1種或組合2種以上。另外,纖維材料較佳為全部或一部分為紙漿纖維,纖維材料中之紙漿纖維之比例較佳為50至100質量%,更較佳為80至100質量%,進一步較佳為100質量%。 另外,在吸收性芯41中亦可以含有吸水性聚合物。作為吸水性聚合物能夠列舉例如聚丙烯酸鈉、(丙烯酸-乙烯醇)共聚物、聚丙烯酸鈉交聯體、(澱粉-丙烯酸)接枝共聚物、(異丁烯-馬來酸酐)共聚物及其皂化物、聚天門冬氨酸等。藉由含有吸水性聚合物能夠更穩定地快速吸收並保持大量之血液等的排泄液。 另外,在吸收性芯41中亦可以根據需要調配除臭劑、抗菌劑等。 作為包覆吸收性芯41之包芯片(未圖示),能夠列舉棉紙、透水性之無紡布等。吸收體4形成為吸收性芯41之上下兩面被包芯片(未圖示)包覆。使用包芯片(未圖示)之目的在於防止吸收性芯41之形成材料漏出、提高吸收性芯41之形狀保持性。包覆吸收性芯41之肌膚相對面側的包芯片(未圖示)與肌膚側片2之間以及包覆吸收性芯41之非肌膚相對面側之包芯片(未圖示)與非肌膚側片3之間,較佳利用點狀、螺旋狀、條紋狀等圖案塗敷之黏接劑相互接合。 作為側片5,能夠無特別限制地使用該技術領域中一直以來使用之各種材料,能夠使用例如液體不透過性或撥水性之樹脂膜、樹脂膜與無紡布之層疊體等。作為其他材料,能夠列舉例如紡黏無紡布、紡黏無紡布(S)及熔噴無紡布(M)複合化而成之片材(例如SM、SMS、SMMS等)、熱輥無紡布、熱風無紡布等撥水性(疏水性)無紡布。 將側片5與肌膚側片2接合之接合部6能夠藉由熱封加工按照通常方法形成。 線狀壓縮槽7 (第一橫壓縮槽71、第二橫壓縮槽72及縱壓縮槽73)藉由伴隨熱或不伴隨熱之壓縮(壓軋)加工(所謂的壓紋加工)、或者超音波壓紋等壓紋加工按照通常方法形成。 對上述本實施方式之衛生棉1之作用效果進行說明。 如圖1至圖2所示,衛生棉1在吸收性芯41中之中間區域41M具有向非肌膚側片3側突出之突出部42,如圖2所示,在俯視吸收性芯41時,突出部42具有在吸收性芯41之橫向Y上長度最大的最大寬度部,該最大寬度部之橫向Y的長度與吸收性芯41之中間區域41M之橫向Y的長度相同。因此,即使以略有偏移之狀態穿著作為吸收性物品之衛生棉1亦能夠確保充分之吸收量。另外,突出部42之肌膚相對面形成為平坦狀,因此,吸收性芯41中之突出部42之肌膚相對面易與包覆吸收性芯41之包芯片(未圖示)緊貼。在與突出部42之肌膚相對面對應之部分,吸收體4與肌膚側片2亦容易貼緊。其結果係,在肌膚相對面,到達吸收性芯41之排泄液快速在水平方向上擴散,藉由進一步提高吸收量、提高吸收速度,更不易發生回液等。另外,因在穿著者之肌膚與衛生棉1之間不易產生台階差,對身體形狀之貼合性優異,於是不易給穿著者帶來不適感。特別係,在衛生棉1中,在吸收性芯41之肌膚相對面具有自第一區域41F起經過中間區域41M至第二區域41R之厚度均勻的連續層RS,因此,穿著者之肌膚與衛生棉1之間更不易產生台階差,對身體形狀之貼合性提高。另外,關於吸收性芯41之中間區域41M所具有的突出部42,其厚度比吸收性芯41之第一區域41F及第二區域41R之厚度厚,因此,在衛生棉1之穿著中,如圖4及圖5所示,在突出部42之縱向X之前後區域中,吸收性芯41之肌膚相對面與非肌膚側片3或包芯片(未圖示)之間易存在空間K,利用該空間K,衛生棉1容易變形為在縱向X上緩衝性優異之形狀,提高貼合性。 特別係,在衛生棉1中具有上述最大寬度部沿吸收性芯41之沿著縱向X之兩側緣在縱向X上延伸特定之長度而形成的突出中央部421。因此,能夠在提高排泄液之吸收量的同時,對於以略有偏移之狀態穿著作為吸收性物品之衛生棉1時或穿著時之身體動作、就寢時之身體姿態等亦能表現出充分之吸收性能。進一步,藉由不在肌膚側片2與吸收性芯41之間產生台階差,排泄液被吸收性芯41快速吸收,不易發生經由肌膚側片2與吸收性芯41之間隙的橫向洩漏。另外,如圖2所示俯視時,突出部42具有突出中央部421,以及自突出中央部421之縱向X之前端部向第一區域41F側凸出之前方側凸部422及自突出中央部421之縱向X之後端部向第二區域41R側凸出之後方側凸部423的至少任一者。因此,即使以略有偏移之狀態穿著衛生棉1,只要突出部42具有前方側凸部422及後方側凸部423中之任一者,對於自兩大腿部向衛生棉1之橫向Y內側之力,藉由前方側凸部422及後方側凸部423之變形,突出部42對身體形狀之追隨性優異,不易給穿著者帶來不適感。在衛生棉1中,特別係突出部42具有前方側凸部422及後方側凸部423此兩者,因此能夠進一步獲得上述效果。 另外,關於衛生棉1,如圖2所示,吸收性芯41中之前方側凸部422及後方側凸部423分別形成為隨著自沿著縱向X之兩側部向位於橫向Y之中央部之頂部422t、423t,其寬度d遞減。因此,即使以略有偏移之狀態穿著衛生棉1,對身體形狀之追隨性亦更加優異,更不易給穿著者帶來不適感。 另外,如圖2所示,衛生棉1具有在吸收性芯41中之中間區域41M劃分突出部42與除突出部42以外之部分的突出邊界槽部43。如圖4及圖5所示,突出邊界槽部43形成為自吸收性芯41中之非肌膚相對面側向肌膚相對面側凹陷。因此,容易以突出邊界槽部43為起點折彎,不易給穿著者帶來不適感。特別係,在衛生棉1中,突出邊界槽部43形成為基重比吸收性芯41中之第一區域41F及第二區域41R之基重低。因此,更易以突出邊界槽部43為起點折彎,不易給穿著者帶來不適感。進一步,突出邊界槽部43在吸收性芯41之橫向Y的全長中形成,因此在吸收性芯41之橫向Y之側緣部亦易配合穿著者之身體形狀及活動而折彎,進一步提高貼合性。 另外,如圖2所示,衛生棉1在吸收性芯41中之中間區域41M具有:配置於與構成突出部42之前方側凸部422鄰接之第一區域41F側的前方突出鄰接部44a;及配置於與構成突出部42之後方側凸部423鄰接之第二區域41R側的後方突出鄰接部44c。如圖4及圖5所示,突出鄰接部44比突出邊界槽部43中之空洞的頂部向非肌膚側片3突出,且肌膚相對面與突出部42之肌膚相對面同樣地形成為平坦狀。因此,在與突出邊界槽部43對應之部分亦不易在穿著者之肌膚與衛生棉1之間產生台階差,對身體形狀之貼合性優異,因而不易給穿著者帶來不適感。另外,在衛生棉1中,突出鄰接部44之基重形成為比吸收性芯41中之第一區域41F之基重及第二區域41R的基重小,且比突出邊界槽部43之基重大,因此,即使以略有偏移之狀態穿著衛生棉1,亦能夠表現出充分之吸收性能。 另外,如圖2所示,衛生棉在吸收性芯41中之第一區域41F及第二區域41R具有基重相對大之小吸收部46及基重相對小的槽部45,因此,容易以槽部45為起點折彎,而不易給穿著者帶來不適感。在衛生棉1中,在第一區域41F及第二區域41R具有槽部45及小吸收部46且在中間區域41M具有突出部42、突出邊界槽部43及突出鄰接部44之吸收性芯41一體成形,因此,對身體形狀之貼合性優異,不易給穿著者帶來不適感。 以上基於本發明之較佳的實施方式進行了說明,但本發明之吸收性物品對本實施方式之衛生棉1無任何限制,能夠適宜地變更。 舉例而言,在衛生棉1中,如圖1及圖2所示,吸收性芯41之中間區域41M配置於衛生棉1之排泄相對區域B的區域以內,吸收性芯41之中間區域41M與衛生棉1之排泄相對區域B不一致,但亦可以一致。即,如衛生棉1一般,衛生棉1在橫向Y兩外側包含一對翼部1W之情況下,中間區域41M存在於各翼部1W中之在縱向X上隔開間隔配置之翼部1W之根部之間即可。更具體而言,衛生棉1之中間區域41M遍及各翼部1W中的在縱向X上隔開間隔配置之翼部1W之根部而存在即可。此外,在衛生棉1之前方區域A之大小與吸收性芯41之第一區域41F的大小大致一致、衛生棉1之後方區域C之大小與吸收性芯41之第二區域41R的大小大致一致時,衛生棉1之中間區域41M之縱向X的長度與各翼部1W中之在縱向X隔開間隔配置之翼部1W之根部之間的長度相同。如此配置亦能得到與上述衛生棉1同樣之效果。 此外,自要求確保充分之吸收量之觀點出發,本實施方式之衛生棉1較佳為縱向X之全長30cm以上的所謂夜用生理用衛生棉。 另外,如圖2所示,在衛生棉1之吸收性芯41中之前方側凸部422,兩側邊422s、422s分別不彎曲地自吸收性芯41之沿著縱向X的側緣41s向頂部422t筆直地以直線狀延伸,前方側凸部422之寬度d自吸收性芯41之沿著縱向X之側緣41s向頂部422t連續地遞減,但前方側凸部422之寬度d可以僅遞減,亦可以階梯性遞減。自提高對身體之貼合性,以及提高在自上述積纖裝置中之上述堆集用凹部55脫離時之脫模性之方面出發,較佳前方側凸部422筆直地以直線狀延伸,前方側凸部422之寬度d自吸收性芯41之沿著縱向X之兩側緣41s、41s向頂部422t連續地遞減。後方側凸部423亦同樣。 另外,衛生棉1之第一區域41F及第二區域41R的厚度相同,但只要比突出部42之厚度小,亦可以彼此厚度不同。另外,衛生棉1之第一區域41F及第二區域41R基重相同,但只要比突出部42之基重小,則亦可以彼此基重不同。另外,衛生棉1之第一區域41F及第二區域41R具有槽部45及小吸收部46,但亦可以不具有槽部45及小吸收部46,亦可以具有不同形狀之槽部45及小吸收部46。 另外,衛生棉1之吸收性芯41整體一體成形,但亦可以不一體成形。舉例而言,吸收性芯41中,亦可以自第一區域41F起至第二區域41R預先以相同高度由芯材料形成,接著,配置由其他芯材料形成之部件進而形成突出部42。 另外,如圖1所示,衛生棉1在肌膚側片2之肌膚相對面中之沿著縱向X的兩側部配置有側片5,但自防止體液側漏之觀點出發,亦可以在側片5之自由端部配置在縱向X上為伸長狀態的彈性部件,進而形成能夠朝向穿著者側立起之防漏翻邊。 另外,如圖1所示,衛生棉1在排泄相對區域B之沿著縱向X之左右兩側具有一對翼部1W、1W,但亦可以不具有一對翼部1W、1W。另外,除一對翼部1W、1W外,亦可以在後方區域C之沿著縱向X之左右兩側具有一對後方翼部。 另外,在圖1所示之衛生棉1中,作為將肌膚側片2與吸收性芯41壓縮一體化之線狀槽,具有在吸收性芯41之縱向X上延伸的一對縱壓縮槽73,自進一步防止漏出之觀點出發,壓縮槽73以在縱向X上縱穿吸收性芯41中之突出部42、突出邊界槽部43、突出鄰接部44之方式形成。此外,如圖7所示之衛生棉1,亦可以在吸收體4之排泄相對區域B中之縱向X之前後端部、比一對縱壓縮槽73及一對第一橫壓縮槽71靠內側之位置,具有分別在橫向Y上延伸的第二橫壓縮槽72。藉由如此在衛生棉1之內側設置第二橫壓縮槽72,衛生棉1能夠以第二橫壓縮槽72為起點變形,進而進一步提高對肌膚之貼合性。 另外,亦可以如圖8所示之衛生棉1,在排泄相對區域B沿著縱向X之一對縱壓縮槽73、73之橫向Y的外側設置一對第二縱壓縮槽73A、73A。藉由設置第二縱壓縮槽73A、73A,能夠在維持第一區域41F及第二區域41R之吸收性、柔軟性的同時,更進一步防止排泄部之扭曲。自防止扭曲及貼合性之觀點來看,第二縱壓縮槽73A、73A更較佳為在縱向X上配置於中間區域41M之位置。 另外,衛生棉1之吸收性芯41中,槽部45亦可以形成於肌膚相對面側。由此,液體擴散性及液體保持性提高。 另外,在衛生棉1中,如圖1所示,衛生棉1之前方區域A的大小與吸收性芯41之第一區域41F之大小大致一致,但亦可以不一致。另外,衛生棉1之後方區域C的大小與吸收性芯41之第二區域41R的大小大致一致,但亦可以不一致。 另外,本發明之吸收性物品除生理用衛生棉外,亦可以為護墊(白帶墊片)、失禁墊等。 關於上述本發明之實施方式,進一步公開以下之吸收性物品。 <1> 一種吸收性物品,其包含:吸收體,該吸收體包含在與穿著者之前後方向對應之縱向上較長之形狀的吸收性芯;肌膚側片,其包覆該吸收體之肌膚相對面;及非肌膚側片,其包覆該吸收體之非肌膚相對面,且該吸收性物品具有前方區域及後方區域, 上述吸收性芯在位於上述前方區域側之第一區域與位於上述後方區域側之第二區域之間具有中間區域,該中間區域包含厚度比該第一區域及該第二區域之厚度厚的突出部, 上述突出部向上述非肌膚側片突出, 在俯視上述吸收性芯時,上述突出部具有在與該吸收性芯之上述縱向正交之橫向上長度最大的最大寬度部,該最大寬度部之橫向之長度與上述吸收性芯之該橫向的長度相同。 <2> 如<1>上述之吸收性物品,上述突出部包含突出中央部,上述突出中央部係上述最大寬度部沿著上述吸收性芯之沿上述縱向之兩側緣在上述縱向上延伸特定之長度而形成的。 <3> 如<2>上述之吸收性物品,上述突出部包含以橫向長度相比於上述最大寬度部變窄之方式自上述突出中央部向前方側或後方側凸出之前方側凸部或後方側凸部。 <4> 如<1>至<3>中任一項上述之吸收性物品,上述吸收性芯具有在上述中間區域劃分出上述突出部與該突出部以外的部分之邊界之突出邊界槽部, 上述突出邊界槽部在上述吸收性芯之橫向的全長上形成。 <5> 如<4>上述之吸收性物品,上述突出邊界槽部形成為自上述吸收性芯之非肌膚相對面側向肌膚相對面側凹陷。 <6> 如<4>或<5>上述之吸收性物品,上述突出邊界槽部形成為基重比上述吸收性芯中之上述第一區域及上述第二區域的基重低。 <7> 如<1>至<6>中任一項上述之吸收性物品,上述吸收性芯具有在上述中間區域劃分出上述突出部與該突出部以外之部分之邊界的突出邊界槽部,在上述中間區域中除上述突出部及該突出邊界槽部以外之區域具有突出鄰接部, 上述突出鄰接部之基重比上述突出部之基重小且為上述吸收性芯中之上述第一區域及上述第二區域之基重以下。 <8> 如<7>上述之吸收性物品,上述突出鄰接部比上述突出邊界槽部中之空洞的頂部向上述非肌膚側片突出,並且肌膚相對面形成為平坦的。 <9> 如<1>至<8>中任一項上述之吸收性物品,上述突出部在肌膚相對面側不具有基重比上述吸收性芯中之上述第一區域及上述第二區域之基重低的凹部。 <10> 如<1>至<9>中任一項上述之吸收性物品,上述吸收性芯在肌膚相對面具有自上述第一區域起經過上述中間區域至上述第二區域之厚度均勻的連續層。 <11> 如<1>至<10>中任一項上述之吸收性物品,上述吸收性芯之整體藉由一體成形而形成。 <12> 如<1>至<11>中任一項上述之吸收性物品,上述突出部包含:上述最大寬度部沿著上述吸收性芯之沿上述縱向之兩側緣在上述縱向上延伸特定之長度而形成的突出中央部;及以橫向長度相比於上述最大寬度部變窄之方式自該突出中央部向前方側及後方側凸出的前方側凸部及後方側凸部, 在上述突出中央部之縱向之前端部配置有一個上述前方側凸部,在上述突出中央部之縱向之後端部配置有一個上述後方側凸部, 上述前方側凸部及上述後方側凸部分別以自沿縱向之兩側部向位於橫向之中央部之頂部其橫向長度遞減之方式形成。 <13> 如<1>至<12>中任一項上述之吸收性物品,上述突出部包含突出中央部,上述突出中央部係上述最大寬度部沿著上述吸收性芯之沿上述縱向之兩側緣在上述縱向上延伸特定之長度而形成的, 在截面觀察時,上述突出中央部以自橫向之中央部向沿縱向之兩側部其厚度變小之方式形成。 <14> 如<1>至<13>中任一項上述之吸收性物品,上述突出部包含突出中央部,上述突出中央部係上述最大寬度部沿著上述吸收性芯之沿上述縱向之兩側緣在上述縱向上延伸特定之長度而形成的, 在截面觀察時,上述突出中央部以自橫向之中央部向沿縱向之兩側部其基重變小之方式形成。 <15> 如<1>至<14>中任一項上述之吸收性物品,上述吸收性芯具有在上述中間區域劃分出上述突出部與該突出部以外之部分之邊界的突出邊界槽部,且在上述中間區域中除上述突出部及該突出邊界槽部以外之區域具有突出鄰接部, 上述突出鄰接部之基重比上述突出部之基重小,且比上述突出邊界槽部之基重大。 <16> 如<15>上述之吸收性物品,上述突出鄰接部之厚度與上述吸收性芯中之上述第一區域及上述第二區域之厚度相同,或比上述第一區域及上述第二區域之厚度小。 <17> 如<1>至<16>中任一項上述之吸收性物品,上述突出部之縱向之全長係上述吸收性芯的縱向之全長的25%以上且80%以下。 <18> 如<1>至<17>中任一項上述之吸收性物品,上述突出部包含突出中央部,上述突出中央部係上述最大寬度部沿著上述吸收性芯之沿上述縱向之兩側緣在上述縱向上延伸特定之長度而形成的, 上述突出部中之上述突出中央部之縱向的全長係上述突出部之縱向之全長的20%以上且80%以下。 <19> 如<1>至<18>中任一項上述之吸收性物品,上述吸收性芯具有劃分出上述突出部與其以外之部分之邊界的突出邊界槽部,在上述中間區域中除上述突出部及該突出邊界槽部以外之區域具有突出鄰接部, 作為將上述肌膚側片與上述吸收性芯壓縮一體化而成之線狀槽,上述吸收性物品具有在上述吸收性芯之縱向上延伸之一對縱壓縮槽, 上述縱壓縮槽以在縱向上縱穿上述突出部、上述突出邊界槽部、上述突出鄰接部之方式形成。 <20> 如<19>上述之吸收性物品,作為將上述肌膚側片與上述吸收性芯壓縮一體化而成之線狀槽,上述吸收性物品具有在上述一對縱壓縮槽之內側在橫向上延伸的橫壓縮槽。 <21> 如<19>或<20>上述之吸收性物品,上述吸收性物品在上述中間區域之沿上述縱向之上述一對縱壓縮槽之橫向的外側具有一對第二縱壓縮槽。 <22> 如<1>至<21>中任一項上述之吸收性物品,在上述吸收性芯之上述第一區域及上述第二區域配置有在橫向上延伸的槽部,該槽部之基重與該第一區域及該第二區域中該槽部以外之部分相比,吸收性芯之形成材料的基重低。 <23> 如<1>至<22>中任一項上述之吸收性物品,在上述吸收性芯之上述第一區域及上述第二區域配置有在縱向上延伸之槽部,該槽部之基重與該第一區域及該第二區域中該槽部以外之部分相比,吸收性芯之形成材料之基重低。 <24> 如<1>至<23>中任一項上述之吸收性物品,在上述吸收性物品之橫向兩外側包含一對翼部,上述中間區域存在於各翼部中之在縱向上隔開間隔配置之該翼部的根部之間。 <25> 如<24>之吸收性物品,上述吸收性芯之上述中間區域遍及上述翼部之根部之間。 <26> 如<24>或<25>上述之吸收性物品,上述吸收性芯之上述中間區域之縱向的長度與上述翼部之根部之間的長度相同。 <27> 如<1>至<26>中任一項上述之吸收性物品,在上述吸收性物品之沿前後方向之左右兩側包含能夠向穿著者側立起之防漏翻邊。 <28> 如<1>至<27>中任一項上述之吸收性物品,上述吸收性物品係全長30cm以上之生理用衛生棉。 工業上之可利用性 根據本發明,即使以略有偏移之狀態穿著吸收性物品,亦能夠在確保充分之吸收量之同時,對身體形狀的貼合性優異,因此不易給穿著者帶來不適感。Patent Literatures 1 to 2 disclose techniques for increasing the absorption amount by using a medium-high portion having a large basis weight disposed in a central portion of the absorbent core, but do not make any use for the content of the non-skin side sheet. It is described that in the absorbent article described in Patent Documents 1 to 2, a gap is formed between the step of the middle and high portions and the surface sheet, and there is a fear that leakage due to the discharge of the liquid cannot be rapidly spread in the absorber, or Partial steps cause the wearer to feel uncomfortable. Further, Patent Document 3 describes an absorbent article in which the central protruding portion protrudes toward the non-skin side sheet in the opposing portion of the excretory portion of the absorbent core. The absorbent article described in Patent Document 3 improves the feeling of fit at the time of wearing, but the central projection is not formed over the entire width of the absorbent core, and it is feared that the central projection and the discharge portion occur at the time of wearing or use. Liquid leaks when the position is shifted. It is therefore an object of the present invention to provide an absorbent article that eliminates the above-described disadvantages of the prior art. Hereinafter, the absorbent article of the present invention will be described with reference to the drawings based on a sanitary napkin 1 (hereinafter also referred to as "sanitary napkin 1") as a preferred embodiment of the absorbent article of the present invention. Fig. 1 is a plan view showing the sanitary napkin 1 of the present embodiment as seen from the side of the skin side panel 2. As shown in Fig. 1, the sanitary napkin 1 comprises: an absorbent body 4 comprising an absorbent core 41 having a shape elongated in a longitudinal direction X corresponding to a front and rear direction of the wearer; and a skin side of the opposite side of the skin covering the absorbent body 4. The sheet 2; and the non-skin side panel 3 covering the non-skin opposing surface of the absorbent body 4, the sanitary napkin 1 has a front area A and a rear area C. As shown in Fig. 1, the sanitary napkin 1 is divided into a discharge opposing region B disposed opposite to the liquid discharge portion of the wearer and a front region A and a rear region C disposed before and after the longitudinal direction X of the discharge opposing region B. In the present specification, the longitudinal direction X corresponds to the front and rear directions of the wearer, and corresponds to the longitudinal direction of the absorbent article (sanitary napkin 1), and the transverse direction Y and the width direction of the absorbent article (sanitary napkin 1) are orthogonal to the longitudinal direction. The direction is the same. Therefore, in the present specification, the length of the longitudinal direction X refers to the "length" which is the distance measured in the longitudinal direction X, and the length of the lateral direction Y refers to the "width" which is the distance measured in the lateral direction Y. . The sanitary napkin 1 is formed to be bilaterally symmetrical about a center line CL extending in the longitudinal direction X. The longitudinal X-direction is parallel to the centerline CL. In addition, in the present invention, the skin is facing the side of the wearer's skin when the absorbent article (sanathion 1) is worn on the absorbent article (sanid 1) or the components thereof, and the non-skin is absorbed by the face. In the sexual article (sanitary napkin 1) or a component thereof, when the absorbent article (sanitary napkin 1) is worn, it faces the side opposite to the skin side (the side on which the garment is worn). The sanitary napkin 1 has a discharge opposing region B that is disposed to face the liquid excretion portion (vaginal opening or the like) of the wearer at the time of wearing, and a front region A that is disposed on the abdomen (front side) of the wearer than the excretion opposing region B. The rear region C of the back side (rear side) of the wearer is opposed to the excretion opposing region B. That is, the sanitary napkin 1 is sequentially divided into the front area A, the excretion opposing area B, and the rear area C in the longitudinal direction X. Further, in the absorbent article of the present invention, in the case where the sanitary napkin 1 of the present embodiment generally has the wing portion 1W, the excretion opposing region B refers to a region having the wing portion 1W in the longitudinal direction X (clamped on one side) The region between the root portion of the wing portion 1W along the longitudinal direction X and the root portion of the wing portion 1W of the other side along the longitudinal direction X). Further, in the case of an absorbent article having no wing portion 1W, the excretion opposing region B refers to two of the absorbent articles which are produced when the absorbent article is folded in a single package form of three folds and traverse the absorbent article in the lateral direction Y. In the fold line (not shown), the area surrounded by the first fold line and the second fold line from the front end of the longitudinal direction X of the absorbent article. As shown in Fig. 1, the sanitary napkin 1 of the present embodiment has a skin-permeable side sheet 2 that forms a liquid-permeable surface of the skin, a non-skin side sheet 3 that forms a non-skin-facing surface, and two sheets 2, 3 Absorber 4 between. The absorber 4 is composed of an absorbent core 41 and a packaged chip (not shown) that wraps the absorbent core 41. In the sanitary napkin 1, as shown in Fig. 1, the skin side panel 2 covers the entire area of the skin opposite surface of the absorbent body 4, and extends from the both sides of the longitudinal direction X of the absorbent body 4 toward the outer side of the lateral direction Y. On the other hand, the non-skin side panel 3 covers the entire area of the non-skin opposing surface of the absorbent body 4, and further extends from the both side edges of the skin side panel 2 along the longitudinal direction X toward the outside of the lateral direction Y, and the side below The sheets 5 together form the side flap portions 1S. The non-skin side panel 3 and the side panel 5 are joined to each other by an extending joint of the self-absorbing body 4 along the both sides of the longitudinal direction X by a known joining method such as an adhesive, heat sealing, or ultrasonic sealing. Further, each of the skin side panel 2 and the non-skin side panel 3 may be joined to the absorber 4 by an adhesive. In the sanitary napkin 1, as shown in Fig. 1, the side panels 5 are disposed on both side portions of the skin side panel 2 in the longitudinal direction X in the longitudinal direction X. The preferred side panel 5 is disposed over the entire length of the longitudinal direction X of the skin side panel 2 so as to overlap the left and right side portions of the skin side panel 2 in the longitudinal direction X in plan view. In the sanitary napkin 1, as shown in FIG. 1, each of the pair of side panels 5, 5 is joined to the skin side panel 2 at the joint portion 6. A pair of corrugated joint portions 6 which are formed by alternately arranging the irregularities of the lateral direction Y in the longitudinal direction X alternately in the plan view, are arranged symmetrically in the lateral direction Y around the center line CL in plan view. When the side panel 5 is joined and fixed to the skin side panel 2 in the corrugated joint portion 6, the side panel 5 is formed at a position lateral to the inner side of the joint portion of the joint portion 6 arranged in a corrugated shape. The space part of the skin side piece 2 is divided. Since the space portion is opened to the center line CL, body fluid such as menstrual blood flowing outward from the center of the lateral direction Y is accommodated in the space portion, and as a result, leakage of body fluid can be effectively prevented. In the sanitary napkin 1, as shown in Fig. 1, the side flap portion 1S largely protrudes toward the outer side of the lateral direction Y in the discharge opposing region B, whereby a pair of wings are extended on both sides of the sanitary napkin 1 along the longitudinal direction X. 1W, 1W. The wing portion 1W is used for folding back to the non-skin opposing side of the crotch portion of the clothing such as shorts. Further, as shown in Fig. 1, the skin side panel 2 and the non-skin side panel 3 extend from the front end and the rear end of the longitudinal direction X of the absorbent body 4 to the outer side of the longitudinal direction X, respectively, and the extension portions are bonded by heat-sealing agent. A known joining method such as sealing or ultrasonic sealing is joined to each other to form an end sealing portion. In the sanitary napkin 1, as shown in FIG. 1, a linear compression groove 7 formed by integrally recessing the skin side panel 2 and the absorbent body 4 toward the non-skin side panel 3 side is formed on the skin facing surface of the skin side panel 2. The "linear shape" in the linear compression groove 7 is not limited to the shape of the groove (recessed portion), and is a straight line in plan view, and also includes a curved line. Wherein, each line may be a continuous line or a general discontinuous line such as a broken line. In the sanitary napkin 1, the linear compression groove 7 is constituted by a row formed by a plurality of discrete dot embossing. In the linear compression groove 7, the density of each fiber as a constituent member of the skin side sheet 2 and the absorbent body 4 is higher than the density of the peripheral portion of the linear compression groove 7. The linear compression groove 7 has a first lateral compression groove 71 extending in the lateral direction Y in the front region A and the rear region C of the absorber 4, and the both sides of the discharge relative region B along the longitudinal direction X in the discharge body 4 There is a longitudinal compression groove 73 extending in the longitudinal direction X. In the sanitary napkin 1, the first lateral compression groove 71 is a curve that protrudes outward in the longitudinal direction X, and the longitudinal compression groove 73 is a curve that protrudes outward in the lateral direction Y from the discharge opposing region B. The first lateral compression groove 71 extends inside the pair of longitudinal compression grooves 73 and extends in the lateral direction Y across a pair of longitudinal compression grooves 73. In the sanitary napkin 1, the first lateral compression groove 71 in the front region A, the vertical compression groove 73 on one side, the first lateral compression groove 71 in the rear region C, and the vertical compression groove 73 on the other side are connected to form a ring. a full-circle groove. The linear compression groove 7 thus formed can suppress the diffusion of the body fluid into the plane direction of the absorber 4, and can effectively prevent the liquid from leaking from the periphery of the napkin 1. In the sanitary napkin 1, as shown in Fig. 2, the absorbent core 41 constituting the absorbent body 4 has an intermediate portion between the first region 41F on the side of the front side region A on the side of the longitudinal direction X and the second region 41R on the side of the rear region C. Area 41M. The intermediate portion 41M includes a protruding portion 42 having a thickness thicker than that of the first region 41F and the second region 41R. In the sanitary napkin 1, the intermediate portion 41M is disposed in the region of the excretion opposing region B. The intermediate portion 41M of the absorbent core 41 and the excretion opposing region B of the sanitary napkin 1 may or may not coincide in the longitudinal direction. In the sanitary napkin 1, the intermediate portion 41M having the protruding portion 42 extends not only in the discharge opposing region B but also from the excretion opposing region B to a portion of the front region A and a portion of the rear region C. Further, in the sanitary napkin 1, as shown in FIG. 2, the first region 41F of the absorbent core 41 is disposed in the region of the front region A of the sanitary napkin 1 in the region of the rear region C of the sanitary napkin 1 The second region 41R of the absorbent core 41 is disposed. In the sanitary napkin 1, as shown in FIG. 1, the absorbent core 41 has a shape that is long in the same direction as the longitudinal direction X of the sanitary napkin 1. Thereby, the longitudinal direction of the absorbent core 41 is the same as the longitudinal direction X of the sanitary napkin 1, and the transverse direction of the absorbent core 41 is the same direction as the transverse direction Y of the sanitary napkin 1. As shown in FIGS. 3 to 5, the protruding portion 42 having the intermediate portion 41M protrudes toward the non-skin side sheet 3, and in the sanitary napkin 1, the skin facing surface is formed flat. As shown in FIG. 4, the thickness of the protruding portion 42 is formed thicker than the thickness of the first region 41F located before the intermediate portion 41M and the thickness of the second region 41R located behind the intermediate portion 41M. Preferably, in the sanitary napkin 1, the projection 42 is formed to be thicker than the thickness of the first region 41F in the absorbent core 41, and is formed to have a basis weight higher than the basis weight of the first region 41F in the absorbent core 41. . Further, in the sanitary napkin 1, the thickness of the protruding portion 42 is formed to be thicker than the thickness of the second region 41R in the absorbent core 41, and is formed to be the basis weight of the second region 41R in the absorbent core 41. high. The thickness and the basis weight of each of the first region 41F and the second region 41R compared with the thickness and the basis weight of the protruding portion 42 mean that when the first groove portion 45 is formed in the first region 41F and the second region 41R, The thickness and the basis weight of the portion of the groove portion 45 described below do not exist in the one region 41F and the second region 41R. The absorbent core 41 of the sanitary napkin 1 is provided with a difference in basis weight difference with respect to the core material, and therefore, unlike the case where a part of the absorbent core having a uniform basis weight is compressed to provide a difference in thickness, the absorbent core 41 as a whole is provided. soft. As described above, the skin facing surface of the protruding portion 42 is formed in a flat shape. Here, "the flat surface of the skin is flat" means not only that the skin-facing surface on the side of the skin side sheet 2 in the protruding portion 42 of the absorbent core 41 is completely flat, but also the product due to the position at the time of fiber accumulation. A state of unevenness of about 5 mm in width and 2 mm in depth is formed in one of the opposite surfaces of the skin, which is caused by variations in the amount of fibers, deformation during pressurization, and other manufacturing steps. Thus, in the sanitary napkin 1, the protruding portion 42 does not have a concave portion having a basis weight lower than the basis weight of the first region 41F and the second region 41R in the absorbent core 41 on the skin facing surface side. Here, when the first region 41F and the second region 41R have the groove portion 45, the basis weight of the first region 41F and the second region 41R refers to the basis weight of the portion other than the groove portion 45. When there is a concave portion having a low basis weight on the skin-facing side of the protruding portion 42, not only the drainage liquid is prevented from rapidly diffusing in the horizontal direction in the longitudinal direction and the lateral direction, but also the liquid returning due to the decrease in the absorption amount of the liquid or the decrease in the absorption speed is likely to occur. And it is easier to cause unexpected wrinkles or breaks in the sanitary napkin 1. It is assumed that, in the case where the skin-facing surface of the protruding portion 42 has a concave portion which is a low basis weight which longitudinally penetrates the longitudinal groove portion of the protruding portion 42 in the longitudinal direction X, it is conceivable that not only the protruding portion 42 is easily cut by the longitudinal groove in the lateral direction Y, When wearing, it is more likely to cause wrinkles in the longitudinal direction of the sanitary napkin 1 starting from the longitudinal groove portion, and it is also possible to cause the absorbent core to be cut by the action of the wearer of the sanitary napkin 1 based on the longitudinal groove portion. Case. When the absorbent core is cut as such, a gap is easily formed between the sanitary napkin 1 and the body, and the absorption capacity is remarkably lowered, which causes a so-called liquid leakage. Further, by absorbing the absorbent core 41 which is flat on the opposite side of the skin, the skin side sheet 2 and the absorbent body 4 are integrally recessed toward the non-skin side sheet 3 side in the subsequent process to form the linear compression groove 7, which is more difficult. Liquid leakage occurred. In the sanitary napkin 1, as shown in FIG. 4, the absorbent core 41 has a continuous layer RS having a uniform thickness from the first region 41F through the intermediate portion 41M to the second region 41R on the opposite side of the skin. The continuous layer RS is formed in the sanitary napkin 1 on the front surface of the skin opposite surface of the absorbent core 41. The thickness of the continuous layer RS is the same as the thickness of the absorptive core 41 at the protruding boundary groove portion 43 described below or the thickness of the absorptive core 41 at the protruding boundary groove portion 43. The thickness of the protruding portion 42 is preferably the thickness of the absorbent core 41 from the viewpoint of protruding the protruding portion 42 toward the non-skin side sheet 3 which is the non-skin side of the wearer, and securing the liquid absorption amount of the absorbent core 41. 120% (that is, 1.2 times) or more, more preferably 140% or more, and more preferably 700% or less, more preferably 500% or less, of the thickness of one region 41F and the second region 41R, and the body is worn when worn. From the viewpoint of followability and suppression of discomfort, it is preferably 120% or more and 700% or less, more preferably 140% or more and 500% or less. Further, the protrusion height indicated by the thickness difference between the thickness of the protruding portion 42 and the thickness of the first region 41F or the second region 41R (the former - the latter) is preferably 1.0 mm or more, more preferably 2.0 mm or more, and further preferably It is 8.0 mm or less, more preferably 6.0 mm or less, and further preferably 1.0 mm or more and 8.0 mm or less, more preferably 2.0 mm or more and 6.0 mm or less. The above structure is particularly effective when the protruding portion 42 of the sanitary napkin 1 of the present embodiment is provided in the excretion opposing region B. Further, the thickness of the protruding portion 42 is preferably 2.0 mm or more, more preferably 3.0 mm or more, further preferably 10.0 mm or less, more preferably 7.0 mm or less, and further preferably 2.0 mm or more and 10.0 mm or less. It is 3.0 mm or more and 7.0 mm or less. Further, it is preferable that the thickness is in the entire range of the protruding portion 42. However, when the thickness is increased or decreased in the thickness direction of the protruding portion 42, the thickest portion may have the above relationship. Further, it is preferable that the thickness relationship is the entire range of the protruding portion 42, but in the thickness direction of the protruding portion 42, in the case of the lateral thickness Y or the longitudinal direction X or both of the directions, the progressive thickness is increased or decreased. In the thickest part, the above relationship can be used. Further, the thickness of the first region 41F or the second region 41R is preferably 0.5 mm or more, more preferably 1.0 mm or more, and further preferably 7.0 mm or less, more preferably 3.5 mm or less, and further preferably 0.5 mm. Above and below 7.0 mm, more preferably 1.0 mm or more and 3.5 mm or less. In the sanitary napkin 1, the thickness of the first region 41F or the second region 41R is preferably substantially uniformly formed in a portion where the groove portion 45 is not present, but in the lateral direction Y of the first region 41F or the second region 41R or When the thickness X is gradually increased or decreased in the longitudinal direction X, the relationship may be the same in the thickest portion. The thickness of each portion of the absorbent core 41 such as the protruding portion 42, the first region 41F or the second region 41R, and the following protruding abutment portion 44 is measured by the following method. <Measurement Method of Thickness of Each Part of Absorbent Core 41> The absorbent core is placed in a horizontal position without wrinkles and bends, and the absorbent core 41 is cut out as a projection object. The portion 42, the first region 41F or the second region 41R, and the like. Next, measure the cut object at 5 cN/cm 2 The thickness under load. Specifically, in the measurement of the thickness, for example, a thickness gauge PEACOCK DIAL UPRIGHT GAUGES R5-C (manufactured by OZAKI MFG. CO. LTD.) is used. At this time, the end portion of the thickness gauge is placed between the end portion and the cut object to make the load 5 cN/cm. 2 The size is adjusted to a circular or square plate (acrylic plate with a thickness of about 5 mm), and the thickness is measured. When the thickness of the first region 41F or the second region 41R or the like in the absorptive core 41 is measured, the measurement is performed in a state in which the groove portion 45 described below is not included. In the sanitary napkin 1, the protruding portion 42 protrudes from the non-skin side sheet 3 which is the non-skin side of the wearer to secure the liquid absorption amount of the absorbent core 41, and the base of the protruding portion 42 in the absorbent core 41. The weight is preferably 100 g/m 2 Above, more preferably 200 g/m 2 Above, and preferably, it is 1500 g/m 2 Below, more preferably 1200 g/m 2 Hereinafter, specifically, it is preferably 100 g/m. 2 Above and 1500 g/m 2 Below, more preferably 200 g/m 2 Above and 1200 g/m 2 the following. In addition, the basis weight of the first region 41F or the basis weight of the second region 41R in the absorbent core 41 is preferably 50 g/m. 2 Above, more preferably 100 g/m 2 Above, and preferably, 1000 g/m 2 Below, more preferably 900 g/m 2 Hereinafter, specifically, it is preferably 50 g/m. 2 Above and 1000 g/m 2 Below, more preferably 100 g/m 2 Above and 900 g/m 2 the following. The basis weight of the first region 41F or the basis weight of the second region 41R is obtained by the above-described method of cutting out the projections described in the above-described measurement method for measuring the thickness of each portion of the absorbent core 41. 42. The mass of the sample of the first region 41F or the second region 41R is divided by the area of the surface of the sample on the opposite side of the skin. When the basis weight of the first region 41F or the basis weight of the second region 41R or the like in the absorptive core 41 is measured, the measurement is performed in a state in which the groove portion 45 described below is not included. In the sanitary napkin 1, the absorbent core 41 is viewed from above, and the protruding portion 42 has a maximum width portion having the largest length in the lateral direction Y orthogonal to the longitudinal direction X of the absorbent core 41, and the length Y of the maximum width portion is absorbed and absorbed. The length Y of the core 41 is the same. Preferably, when the absorbent core 41 is viewed in plan as shown in FIG. 2, the maximum width portion of the protruding portion 42 including the protruding portion 42 is formed along the longitudinal edges of the absorbent core 41 in the longitudinal direction X by a specific length. The central portion 421 is highlighted. In other words, the protruding central portion 421 extends in a strip shape between the side edges 41s, 41s of the absorbent core 41 along the longitudinal direction X, and has the above-described projections 42 in the entire longitudinal direction X of the strip-shaped protruding central portion 421. Maximum width section. The length of the lateral direction Y of the maximum width portion of the protruding central portion 421 is the same as the maximum width of the absorbent core 41 at the intermediate portion 41M. Further, the width of the absorbent core 41 herein refers to the width of the absorbent core 41 including the projections 42. In other words, when the cross section of the protruding portion 42 in the lateral direction Y is observed, the width of the protruding portion 42 on the non-skin opposing surface side is located at a height position from the surface on the non-skin opposing surface side of the adjacent first region 41F and the second region 41R. (Non-skin side width), the width of the protruding portion 42 on the side opposite to the skin (skin side width) is the same or the non-skin side width is large, and the maximum width of the protruding portion 42 is the same as the width of the absorbent core 41. However, the maximum width portion of the protruding portion 42 is preferably substantially the same as the skin side width and the non-skin side width, and is particularly preferably substantially uniform in the thickness direction. In the sanitary napkin 1, as shown in Fig. 2, in order to be able to ensure a sufficient absorption amount even when the absorbent article is worn in a slightly offset state, the absorbent core 41 is preferably disposed so that the protruding central portion 421 is disposed in the discharge relative region. B, and the area of the excretion relative area B is as wide as possible. From this point of view, the protruding central portion 421 is preferably at the maximum width portion, and the distance between the side edges 41s, 41s of the absorbent core 41 along the longitudinal direction X is constant, and it is more preferable that the both side edges 41s, 41s are at the same time. The longitudinal direction X is parallel and formed in a straight line. However, at the time of manufacture, due to the positional deviation of the lateral direction Y of the protruding portion 42 in the absorbent core 41, the notch of the protruding portion 42, the inclination of the demolding due to the production method, the rounding or chamfering of the end portion, etc. The width of the portion 42 is slightly different from the width of the absorbent core 41 to a certain extent, for example, a range of the difference of about 5% of the width of the maximum width portion is regarded as the same width. The maximum width refers to the distance in the longest position in the lateral direction Y. Further, in the sanitary napkin 1, the length of the lateral direction Y of the maximum width portion of the protruding portion 42 in the lateral direction Y is the same as the maximum length of the lateral direction Y of the intermediate portion 41M of the absorbent core 41, and the lateral direction Y of the absorbent core 41. The maximum length is the same. Thereby, even if the sanitary napkin 1 is worn in a state of being slightly offset, it is possible to ensure a sufficient absorption amount and to prevent leakage. In the sanitary napkin 1, when the cross section is observed as shown in FIG. 3, the protruding central portion 421 of the protruding portion 42 is formed to have a smaller thickness as it goes from the central portion of the lateral direction Y toward both side edges along the longitudinal direction X. That is, the central portion disposed on the center line CL extending in the longitudinal direction X disposed in the protruding central portion 421 is formed to have the largest thickness. When the protruding central portion 421 is thus formed, the amount of absorption of the liquid in the excretion opposing region B can be sufficiently ensured. In the sanitary napkin 1, when the cross section is observed as shown in FIG. 3, the protruding central portion 421 of the protruding portion 42 is formed to have a smaller basis weight as it goes from the central portion of the lateral direction Y toward both side edges along the longitudinal direction X. That is, the central portion disposed on the center line CL extending in the longitudinal direction X disposed in the protruding central portion 421 is formed to have the largest basis weight. When the protruding central portion 421 is thus formed, the absorbability of the liquid in the excretion opposing region B and the like can be improved. In the protruding central portion 421 of the sanitary napkin 1, when the cross section is viewed as shown in Fig. 3, the ratio of the thickness (T1) of the central portion disposed on the center line CL to the thickness (T2) of the side edge 41s having the smallest thickness (T1) /T2), the self-protruding portion can be attached to the excretion portion as much as possible without any gap, and is preferably 1.1 or more, particularly preferably 1.3 or more, and is not easy to bring about discomfort during wearing. It is preferably 4 or less, particularly preferably 3 or less, and specifically preferably 1.1 or more and 4 or less, and particularly preferably 1.3 or more and 3 or less. Further, the protruding portion 42 includes the front side convex portion 422 or the rear side convex portion 423, and the front side convex portion 422 or the rear side convex portion 423 is narrowed in such a manner that the length of the lateral direction Y is narrower than the maximum width portion of the protruding portion 42. The protruding central portion 421 protrudes toward the front region A side or the rear region C side. In other words, when the absorbent core 41 is viewed in plan as shown in FIG. 2, the protruding portion 42 has at least the front side convex portion 422 and the self-protruding central portion 421 protruding from the front end portion of the longitudinal center X of the protruding central portion 421 toward the first region 41F side. In the longitudinal direction X, the end portion protrudes toward the second region 41R side and the rear side convex portion 423. In the sanitary napkin 1, the protruding portion 42 has a front side convex portion 422 and a rear side convex portion 423. In other words, in the sanitary napkin 1, the protruding portion 42 is divided into a front side convex portion 422, a protruding central portion 421, and a rear side convex portion 423. In the sanitary napkin 1, as shown in FIG. 2, one of the front side convex portions 422 of the absorbent core 41 is disposed at the end portion before the protruding central portion 421, and the rear side convex portion 423 is disposed at the end portion after the protruding central portion 421. There is one. In the front side convex portion 422, the top portion 422t of the front side convex portion 422 is disposed on the center line CL extending in the longitudinal direction X, and the side edges 422s and 422s forming the front side convex portion 422 are respectively from the top portion 422t to the absorbent core. The side edge 41s of the longitudinal direction X of 41 extends in a straight line shape. Similarly to the front side convex portion 422, the rear side convex portion 423 is disposed on the center line CL extending in the longitudinal direction X, and the both side edges 423s and 423s forming the rear side convex portion 423 are respectively from the top. From 423t to the side edge 41s of the longitudinal direction X of the absorbent core 41. In the sanitary napkin 1, as shown in Fig. 2, the front side convex portion 422 and the rear side convex portion 423 of the absorbent core 41 are formed from the both side portions along the longitudinal direction X toward the top portion of the central portion of the lateral direction Y, respectively. 422t, 423t and its width d is decremented. Preferably, in the absorbent core 41 of the sanitary napkin 1, the front side convex portion 422, the interval between the both side edges 422s, 422s (width d) from the absorbent core 41 along the longitudinal direction X of both sides 41s, 41s Decrease to the top 422t. Similarly, in the rear side convex portion 423 of the absorbent core 41 of the sanitary napkin 1, the interval (width d) between the side edges 423s and 423s is from the both sides 41s, 41s of the absorbent core 41 along the longitudinal direction X. The top 423t is decremented. Here, the decrease in the width d means that the width d gradually decreases as it goes to the top portions 422t, 423t. In the absorbent core 41 of the sanitary napkin 1, when the front side convex portion 422 and the rear side convex portion 423 are exemplified as the front side convex portion 422, as shown in Fig. 2, the both side edges 422s and 422s are respectively Extends straight without bending. From the viewpoint of improving the fit of the body shape and the followability in the movement, the angle ? formed by the side 422s of one side and the center line CL extending in the longitudinal direction X is preferably 20 or more, more preferably 30° or more, and preferably 75° or less, more preferably 60° or less, specifically, 20° or more and 75° or less, more preferably 30° or more and 60° or less. The rear side convex portion 423 is also the same as the front side convex portion 422. From the viewpoint of ensuring the absorption amount of the body fluid and the fit of the sanitary napkin 1 when worn, as shown in FIG. 2, the entire length L2 of the longitudinal direction X of the protruding portion 42 is preferably the total length L1 of the longitudinal direction X of the absorbent core 41. 25% or more, more preferably 30% or more, further preferably 80% or less, more preferably 75% or less, further preferably 25% or more and 80% or less, more preferably 30% or more and 75% or less. . Further, the full length L1 represents the distance of the absorbent core 41 at the longest position in the longitudinal direction X, and the full length L2 refers to the distance of the protruding portion 42 at the longest position in the longitudinal direction X. From the viewpoint of sufficiently ensuring the absorption amount of the body fluid, as shown in FIG. 2, the total length L3 of the longitudinal direction X of the protruding central portion 421 constituting the protruding portion 42 is preferably 20% or more, more preferably 30% of the total length L2 of the protruding portion 42. % or more is preferably 80% or less, more preferably 70% or less, and further preferably 20% or more and 80% or less, more preferably 30% or more and 70% or less. As shown in Fig. 2, the total length L4 of the longitudinal direction X of the front side convex portion 422 constituting the protruding portion 42 is preferably 5% or more, more preferably 10% or more, and further preferably 50% of the total length L2 of the protruding portion 42. The amount is preferably 30% or less, more preferably 5% or more and 50% or less, and still more preferably 10% or more and 30% or less. The total length of the longitudinal direction X of the side convex portion 423 after forming the protruding portion 42 is also the same as the total length L4 of the longitudinal direction X of the front side convex portion 422. Here, the full length L4 refers to the distance of the front side convex portion 422 at the longest position in the longitudinal direction X. In the sanitary napkin 1, as shown in FIGS. 2, 4, and 5, the absorbent core 41 has a projecting boundary groove portion 43 that divides the boundary between the protruding portion 42 and the portion other than the protruding portion 42 in the intermediate portion 41M. The protruding boundary groove portion 43 is formed to be recessed from the non-skin opposing surface side of the absorbent core 41 toward the skin facing surface side. The protruding boundary groove portion 43 is formed so as to be convexly recessed from the side of the non-skin side sheet 3 on the non-skin side sheet 3 side of the absorbent core 41, and the top side of the hollow side of the groove is formed on the side of the skin side sheet 2 top. Therefore, when the sanitary napkin 1 is worn, the force of the action from the leg to the inner side of the lateral direction Y of the absorbent core 41 is easily bent by the protruding boundary groove portion 43 as a starting point, and the sanitary napkin 1 is more easily along the body. The shape is three-dimensionally bonded. In the sanitary napkin 1, as shown in FIG. 2, the protruding boundary groove portion 43 has a front protruding boundary groove portion 43a which is formed along both sides of the square side convex portion 422 which is formed before the protruding portion 42 is formed. The 422s and 422s extend; and the rearward projecting boundary groove portion 43c extends along the side edges 423s and 423 forming the rear side convex portion 423. The front protruding boundary groove portion 43a and the rear protruding boundary groove portion 43c are formed in the entire length (entire width) of the lateral direction Y of the absorbent core 41. Therefore, the force acting from the inside of the leg portion to the inner side of the lateral direction Y of the absorbent core 41 is less likely to cause longitudinal wrinkles in the longitudinal direction of the sanitary napkin 1, and the sanitary napkin 1 is more easily three-dimensionally bonded along the shape of the body. Thereby, the boundary between the protruding portion 42 is defined by the front protruding boundary groove portion 43a and the rear protruding boundary groove portion 43c in the absorbent core 41. In the sanitary napkin 1, the groove width of the protruding boundary groove portion 43 in the absorbent core 41 is preferably 0.1 mm or more, and more preferably 0.5 mm or more, from the viewpoint of improving the absorbability of the liquid in the excretion-relative region B, and the like. Further, it is preferably 5.0 mm or less, more preferably 3.0 mm or less, and further preferably 0.1 mm or more and 5.0 mm or less, more preferably 0.5 mm or more and 3.0 mm or less. Further, the groove width of the protruding boundary groove portion 43 and the following thickness are measured by cutting it in a direction orthogonal to the extending direction of the protruding boundary groove portion 43, and measuring according to the photograph of the cross section. In the sanitary napkin 1, the thickness of the protruding boundary groove portion 43 (the thickness of the absorbent core 41 at the top of the groove) is preferably from the viewpoint of improving the absorption of the liquid in the excretion-relative region B, and the like. It is 0.08 mm or more, more preferably 0.15 mm or more, and further preferably 7.0 mm or less, more preferably 3.5 mm or less, and further preferably 0.08 mm or more and 7.0 mm or less, more preferably 0.15 mm or more and 3.5 mm. the following. In the sanitary napkin 1, the basis weight of the protruding boundary groove portion 43 is lower than the basis weight of the protruding portion 42, and the basis weight is lower than the basis weight of the first region 41F and the basis weight of the second region 41R in the absorbent core 41. Here, when having the groove portion 45 described below, the basis weight of the first region 41F and the basis weight of the second region 41R refer to the basis weight of the portion other than the groove portion 45. The basis weight of the protruding boundary groove portion 43 is preferably 10 g/m. 2 Above, more preferably 20 g/m 2 Above and, preferably, 350 g/m 2 Below, more preferably 250 g/m 2 Hereinafter, specifically, it is preferably 10 g/m. 2 Above and 350 g/m 2 Below, more preferably 20 g/m 2 Above and 250 g/m 2 the following. Further, the basis weight of the protruding boundary groove portion 43 is obtained by using a portion of the protruding boundary groove portion 43 which is generally cut out as described in the measuring method of the thickness of each portion of the above-mentioned absorbent core 41. The mass of the sample divided by the area of the surface of the sample on the opposite side of the skin. In the sanitary napkin 1, as shown in FIG. 2, the absorbent core 41 has a protruding abutment portion 44 in the intermediate portion 41M except for the protruding portion 42 and in addition to the protruding boundary groove portion 43. In the sanitary napkin 1, the intermediate portion 41M of the absorbent core 41 includes a protruding portion 42, a protruding boundary groove portion 43, and a protruding abutment portion 44. In the intermediate portion 41M, the protruding abutting portion 44 has a front protruding abutting portion 44a disposed on the first region 41F side adjacent to the front side convex portion 422 constituting the protruding portion 42, and a rear protruding abutting portion 44c, the rear protruding abutting portion 44c is disposed on the second region 41R side adjacent to the side convex portion 423 which constitutes the protruding portion 42. The front protruding abutment portion 44a is formed to be bilaterally symmetrical with respect to the center line CL extending in the longitudinal direction X. In the portion of the front protruding abutment portion 44a which is one half of the side edge 41s side of the absorbent core 41 along one side of the longitudinal direction X of the absorbent core 41, the length of the longitudinal direction X is formed to be from the side edge 41s of the one side toward the center Line CL is decremented. Similarly to the front protruding abutting portion 44a, the rear protruding abutting portion 44c is formed to be bilaterally symmetrical with respect to the center line CL extending in the longitudinal direction X. In the portion of the rear protruding abutment portion 44c which is half of the side of the side edge 41s of the absorbent core 41 along the one side of the longitudinal direction X, the length of the longitudinal direction X is formed to be from the side edge 41s of the one side toward the center. Line CL is decremented. In the sanitary napkin 1, as shown in FIGS. 4 and 5, the protruding abutting portion 44 protrudes from the top of the hollow hole of the protruding boundary groove portion 43, in other words, the top portion of the boundary groove portion 43 on the side of the skin side sheet 2, toward the non-skin side. Sheet 3 stands out. Further, the skin opposing surface of the protruding abutment portion 44 is formed to be flat. The protruding abutting portion 44 is formed to have a thickness larger than the thickness of the protruding boundary groove portion 43 and smaller than the thickness of the protruding portion 42 in the absorbent core 41. Further, from the viewpoint of the followability to the physical activity, the thickness of the protruding abutting portion 44 is preferably the same as or smaller than the thickness of the first region 41F and the thickness of the second region 41R. Further, the thickness of the protruding abutting portion 44 may be larger than the thickness of the first region 41F and the thickness of the second region 41R from the viewpoint of the strength of the absorbent core 41 when the body is repeatedly deformed. The thickness of the protruding abutting portion 44 is preferably 0.5 mm or more, more preferably 1.0 mm or more, further preferably 10.0 mm or less, more preferably 7.0 mm or less, and further preferably 0.5 mm or more and 10.0 mm or less. Preferably, it is 1.0 mm or more and 7.0 mm or less. The thickness of the protruding abutment portion 44 is measured based on the measurement method of the thickness of each portion of the above-described absorbent core 41. In the sanitary napkin 1, the basis weight (mass per unit area) of the protruding abutting portion 44 is formed to be smaller than the basis weight of the protruding portion 42 of the absorbent core 41, and is larger than the basis of the protruding boundary groove portion 43. Further, from the viewpoint of the followability to the physical activity, the basis weight of the protruding adjacent portion 44 is preferably equal to or less than the basis weight of the first region 41F in the absorbent core 41 and the basis weight of the second region 41R. Further, from the viewpoint of the strength of the absorbent core 41 when the movement of the body is reversely deformed, the basis weight of the protruding abutting portion 44 may be larger than the basis weight of the first region 41F and the basis of the second region 41R. Here, when the groove portion 45 is provided, the basis weight of the first region 41F and the basis weight of the second region 41R refer to the basis weight of the portion other than the groove portion 45. The basis weight of the protruding abutment portion 44 is preferably 20 g/m. 2 Above, more preferably 50 g/m 2 Above, and preferably, 800 g/m 2 Below, more preferably 700 g/m 2 Hereinafter, specifically, it is preferably 20 g/m. 2 Above and 800 g/m 2 Below, more preferably 50 g/m 2 Above and 700 g/m 2 the following. Further, the basis weight of the protruding abutting portion 44 is obtained by dividing the mass of the sample of the generally cut protruding abutment portion 44 described by the method of measuring the thickness of each portion of the above-mentioned absorbent core 41 by The area of the skin on the opposite side of the skin of the sample. In the sanitary napkin 1, as shown in Fig. 2, the first region 41F and the second region 41R of the absorbent core 41 have a groove portion 45 having a relatively small basis weight and a small absorbent portion 46 having a relatively large basis weight, respectively. Preferably, the groove portion 45 includes a longitudinal groove 45X extending in the longitudinal direction X and a lateral groove 45Y extending in the lateral direction Y. Thereby, a groove portion (lateral groove 45Y) extending in the lateral direction Y is disposed in the first region 41F and the second region 41R, and a groove portion (longitudinal groove 45X) extending in the longitudinal direction X is disposed. The vertical grooves 45X extending in the longitudinal direction X are arranged at a predetermined interval in the lateral direction Y, and the lateral grooves 45Y extending in the lateral direction Y are arranged at a predetermined interval in the longitudinal direction X. The small absorbing portion 46 is disposed at a position of a hole of a grid defined by the vertical groove 44Y and the lateral groove 44X. The thickness and basis weight of the first region 41F and the second region 41R refer to the thickness and basis weight of the small absorbing portion 46. The basis weight of the groove portion 45 including the vertical groove 45X and the lateral groove 45Y is formed such that the basis weight of the material for forming the absorbent core is a small absorption portion 46 which is a portion other than the groove portion of the first region 41F and the second region 41R. low. In the sanitary napkin 1, the first region 41F and the second region 41R have the groove portion 45 and the small absorbing portion 46, and the intermediate portion 41M has the protruding portion 42, the protruding boundary groove portion 43, and the protruding core portion 41 of the absorbent core 41. It is integrally formed. The term "integral molding" refers to a method in which members manufactured in different processes are bonded to each other by a bonding method such as an adhesive or compression, and the same material is used and integrally formed in one step. The absorbent core 41 of the sanitary napkin 1 can be generally manufactured by, for example, a fiber-forming device as shown in Fig. 6 (a), and the fiber-splitting device includes a fiber-splitting cylinder 54 having a stacking recess 55 on the outer peripheral surface. And rotating in one direction R; and a pipe (not shown) supplies the core material to the outer peripheral surface of the fiber bundle cylinder 54 in a scattered state. A plurality of stacking recesses 55 are formed at regular intervals in the circumferential direction of the outer peripheral surface of the fiber bundle cylinder 54. The bottom surface 56 of the stacking recess 55 has a plurality of pores which are formed of a mesh plate or the like and function as a suction hole. Further, as shown in Fig. 6(a), a recess 56b for forming the intermediate portion 41M of the absorbent core 41 is formed in a portion of the bottom surface 56 of one of the stacking recesses 55. Further, in the concave portion 56b, a first air-impermeable member 57 for forming the protruding boundary groove portion 43 of the protruding portion 42 and the protruding abutting portion 44 is disposed on the bottom surface thereof. The first air-impermeable member 57 is disposed at a position corresponding to the protruding boundary groove portion 43, and is fixed so as to protrude from the bottom surface of the concave portion 56b. Further, a second air-impermeable member 58 for forming the groove portion 45 is disposed in the upstream side region of the rotation direction R adjacent to the concave portion 56b and the bottom surface 56 of the downstream side region. The second air-impermeable member 58 is disposed at a position corresponding to the vertical groove 44Y and the lateral groove 44X, and is fixed so as to protrude from the bottom surface 56 of the stacking recess 55. The first air-impermeable member 57 and the second air-impermeable member 58 may be non-ventilating members, and include, for example, metal, plastic, ceramics, or the like. In the case of a known fiber-splitting device including a fiber-splitting cylinder, the core material in which the water-absorbent polymer and the pulp fiber are mixed is supplied into the pipe while being sucked from the bottom surface of the stacking recess 55, as shown in Fig. 6(b). The core material is deposited in a predetermined shape in the stacking recess 55. The precursor of the absorbent core 41 is obtained by demolding the deposit 40 from the stacking recess 55. The front body of the absorbent core 41 is covered with a packaged chip (not shown), and then cut by a rotary cutter or the like, and conveyed in a transport direction by a transport mechanism such as a conveyor. Thereby, the absorptive core 41 can be obtained. The thus-obtained absorbent core 41 coated with a packaged chip (not shown) is appropriately compressed by being pressurized in whole or in part by one or a plurality of times between a pair of rolls. Thereby, the protruding portion 42 having a relatively large basis weight and a large thickness is formed in a portion where the concave portion 56b is deposited. Similarly, the portion composed of the core material deposited in the upstream side region and the downstream side region adjacent to the concave portion 56b is formed as the first region 41F and the second region 41R of the absorbent core 41 having a relatively small basis weight. Further, a portion made of a core material deposited on the first air-impermeable member 57 of the concave portion 56b is formed to be a top portion of the protruding boundary groove portion 43 which is smaller than the basis weight of the first region 41F and the basis weight of the second region 41R. . A portion of the core material deposited on the second air-impermeable member 58 adjacent to the concave portion 56b and the downstream side region is formed to be a top portion of the groove portion 45 which is relatively smaller than the basis weight of the small absorbent portion 46. The core including the top portion of the protruding boundary groove portion 43 and the top portion of the groove portion 45 from the upstream side region to the downstream side region adjacent to the recess portion 56b, and the core of the first air-impermeable member 57 and the second air-impermeable member 58 The portion of the material is formed as a continuous layer RS of uniform thickness. The material for forming the respective constituent members of the sanitary napkin 1 of the present embodiment will be described. The skin side sheet 2 that forms the opposite side of the skin is made of a material having liquid permeability and including a thermoplastic synthetic resin. For example, a fiber such as a hot air fiber nonwoven fabric, a spunbonded nonwoven fabric, or a point adhesive nonwoven fabric can be preferably used. Woven cloth. Examples of the thermoplastic resin include an olefin polymer such as ethylene or propylene or polyethylene terephthalate, but are not limited to the above examples. The skin side panel 2 preferably has a basis weight of, for example, 10 to 100 g/m. 2 The thickness is 0.5 to 5.0 mm. Further, the skin side sheet 2 can be made of the same material as that which has been conventionally used in the technical field, and a perforated film or the like can be used without particular limitation. The non-skin side panel 3 is composed of a material having a liquid-impermeable or impermeability and containing a thermoplastic synthetic resin, for example, a synthetic resin film, a synthetic resin film and a nonwoven fabric laminate, or a spunbond-meltblown-spun Non-woven fabrics having high water pressure resistance, such as a non-woven fabric, a non-woven fabric, a non-woven fabric, a non-woven fabric, and a non-woven fabric, are not limited thereto, and can be used without any particular limitation. Materials of the same material used in the art have been used. The non-skin side panel 3 preferably has a basis weight of, for example, 10 to 50 g/m. 2 The thickness is 8 to 200 μm. The core material of the absorbent core 41 includes a fiber assembly having a fibrous material such as pulp fibers. As the fiber material, various materials used in an absorbent body of an absorbent article such as a sanitary napkin, a pad, or a disposable diaper can be used without particular limitation, and for example, pulp fibers, rayon fibers, cotton fibers, or the like can be used. Short fibers of cellulosic fibers, short fibers of synthetic fibers such as polyethylene, and the like. These fibers can be used alone or in combination of two or more. Further, the fibrous material is preferably all or a part of pulp fibers, and the proportion of the pulp fibers in the fibrous material is preferably from 50 to 100% by mass, more preferably from 80 to 100% by mass, still more preferably 100% by mass. Further, the absorbent core 41 may contain a water-absorptive polymer. Examples of the water-absorbing polymer include sodium polyacrylate, (acrylic acid-vinyl alcohol) copolymer, sodium polyacrylate crosslinked body, (starch-acrylic acid) graft copolymer, (isobutylene-maleic anhydride) copolymer, and saponification thereof. , polyaspartic acid, etc. By containing a water-absorptive polymer, it is possible to more quickly absorb and retain a large amount of excretion of blood or the like. Further, a deodorant, an antibacterial agent, or the like may be formulated in the absorbent core 41 as needed. Examples of the packaged chip (not shown) that coats the absorbent core 41 include cotton paper, a water-permeable nonwoven fabric, and the like. The absorber 4 is formed such that the upper and lower surfaces of the absorbent core 41 are covered with a packaged chip (not shown). The purpose of using a packaged chip (not shown) is to prevent the formation material of the absorbent core 41 from leaking out and to improve the shape retainability of the absorbent core 41. Covering the chip (not shown) and the non-skin between the packaged chip (not shown) on the skin-facing side of the absorbent core 41 and the skin-side sheet 2 and on the non-skin-facing side of the absorbent core 41 The side sheets 3 are preferably joined to each other by a bonding agent applied in a pattern such as a dot shape, a spiral shape or a stripe shape. As the side sheet 5, various materials conventionally used in the technical field can be used without any particular limitation, and for example, a resin film which is impervious to liquid or water repellency, a laminate of a resin film and a nonwoven fabric, or the like can be used. Examples of other materials include a spunbonded nonwoven fabric, a spunbonded nonwoven fabric (S), and a meltblown nonwoven fabric (M) composite sheet (for example, SM, SMS, SMMS, etc.), and a heat roller. A water-repellent (hydrophobic) nonwoven fabric such as a woven fabric or a hot air nonwoven fabric. The joint portion 6 that joins the side panel 5 and the skin side panel 2 can be formed by a usual method by heat sealing. The linear compression grooves 7 (the first lateral compression grooves 71, the second lateral compression grooves 72, and the longitudinal compression grooves 73) are processed by compression (rolling) with or without heat (so-called embossing), or super Embossing such as sound embossing is formed in accordance with a usual method. The effect of the above-described sanitary napkin 1 of the present embodiment will be described. As shown in FIGS. 1 to 2, the sanitary napkin 1 has a protruding portion 42 projecting toward the non-skin side panel 3 in the intermediate portion 41M of the absorbent core 41, as shown in Fig. 2, when the absorbent core 41 is viewed from above, The protruding portion 42 has a maximum width portion having the largest length in the lateral direction Y of the absorbent core 41, and the length of the lateral direction Y of the maximum width portion is the same as the length of the lateral direction Y of the intermediate portion 41M of the absorbent core 41. Therefore, even if the sanitary napkin 1 which is an absorbent article is worn in a state of being slightly offset, a sufficient absorption amount can be secured. Further, since the skin-facing surface of the protruding portion 42 is formed in a flat shape, the skin-facing surface of the protruding portion 42 in the absorbent core 41 is likely to be in close contact with the packaged chip (not shown) that covers the absorbent core 41. The absorbent body 4 and the skin side panel 2 are also easily attached to the portion corresponding to the skin opposite to the protruding portion 42. As a result, the excretion liquid reaching the absorbent core 41 rapidly spreads in the horizontal direction on the opposite side of the skin, and by further increasing the absorption amount and increasing the absorption speed, it is less likely to cause liquid return or the like. In addition, since the step difference between the wearer's skin and the sanitary napkin 1 is less likely to occur, the fit to the body shape is excellent, and thus it is difficult to give the wearer an uncomfortable feeling. In particular, in the sanitary napkin 1, the skin-opposing surface of the absorbent core 41 has a continuous layer RS having a uniform thickness from the first region 41F through the intermediate portion 41M to the second region 41R, and therefore, the wearer's skin and hygiene The difference between the cotton 1 is less likely to occur, and the fit to the body shape is improved. Further, the protruding portion 42 of the intermediate portion 41M of the absorbent core 41 is thicker than the thickness of the first region 41F and the second region 41R of the absorbent core 41, and therefore, in the wearing of the sanitary napkin 1, As shown in FIG. 4 and FIG. 5, in the rear region before the longitudinal direction X of the protruding portion 42, the space K between the skin-facing surface of the absorbent core 41 and the non-skin side sheet 3 or the package chip (not shown) is likely to exist, and the space K is utilized. In the space K, the sanitary napkin 1 is easily deformed into a shape excellent in cushioning property in the longitudinal direction X, and the fit is improved. In particular, the sanitary napkin 1 has a protruding central portion 421 formed by extending the above-mentioned maximum width portion along the longitudinal edges of the absorbent core 41 in the longitudinal direction X by a specific length. Therefore, it is possible to increase the amount of absorption of the excretory fluid, and to exhibit a sufficient amount of the sanitary napkin 1 when the absorbent article is worn in a state of being slightly offset, the body movement at the time of wearing, the body posture at the time of bedtime, and the like. Absorption performance. Further, by not causing a step difference between the skin side sheet 2 and the absorbent core 41, the excretory fluid is quickly absorbed by the absorbent core 41, and lateral leakage through the gap between the skin side sheet 2 and the absorbent core 41 is less likely to occur. Further, in a plan view as shown in FIG. 2, the protruding portion 42 has a protruding central portion 421, and a front side convex portion 422 and a self-protruding central portion are protruded from the front end portion of the longitudinal center X of the protruding central portion 421 toward the first region 41F side. At least one of the rear side convex portions 423 is protruded toward the second region 41R side from the end portion of the longitudinal direction X of the 421. Therefore, even if the sanitary napkin 1 is worn with a slight offset, the protruding portion 42 has any one of the front side convex portion 422 and the rear side convex portion 423, and the lateral direction Y from the two large leg portions to the sanitary napkin 1 The force on the inner side is deformed by the front side convex portion 422 and the rear side convex portion 423, and the protruding portion 42 is excellent in followability to the body shape, and it is difficult to give the wearer an uncomfortable feeling. In the sanitary napkin 1, since the protruding portion 42 has both the front side convex portion 422 and the rear side convex portion 423, the above effects can be further obtained. In the sanitary napkin 1, as shown in FIG. 2, the front side convex portion 422 and the rear side convex portion 423 of the absorbent core 41 are formed so as to be located in the center of the lateral direction Y from both side portions along the longitudinal direction X, respectively. At the top of the section 422t, 423t, the width d is decremented. Therefore, even if the sanitary napkin 1 is worn with a slight offset, the followability to the body shape is more excellent, and it is more difficult to give the wearer an uncomfortable feeling. Further, as shown in FIG. 2, the sanitary napkin 1 has a protruding boundary groove portion 43 which partitions the protruding portion 42 and a portion other than the protruding portion 42 in the intermediate portion 41M of the absorbent core 41. As shown in FIGS. 4 and 5, the protruding boundary groove portion 43 is formed to be recessed from the non-skin opposing surface side of the absorbent core 41 toward the skin facing surface side. Therefore, it is easy to bend from the protruding boundary groove portion 43 as a starting point, and it is difficult to give the wearer an uncomfortable feeling. In particular, in the sanitary napkin 1, the protruding boundary groove portion 43 is formed such that the basis weight is lower than the basis weights of the first region 41F and the second region 41R in the absorbent core 41. Therefore, it is easier to bend the protruding groove portion 43 as a starting point, and it is difficult to give the wearer an uncomfortable feeling. Further, since the protruding boundary groove portion 43 is formed in the entire length of the lateral direction Y of the absorbent core 41, the side edge portion of the lateral direction Y of the absorbent core 41 is also easily bent in conformity with the body shape and movement of the wearer, thereby further improving the sticking. Synergy. 2, the intermediate portion 41M of the sanitary napkin 1 in the absorbent core 41 has a front protruding abutment portion 44a disposed on the side of the first region 41F adjacent to the front side convex portion 422 constituting the protruding portion 42; And a rear protruding abutting portion 44c disposed on the second region 41R side adjacent to the rear side convex portion 423 constituting the protruding portion 42. As shown in FIGS. 4 and 5, the protruding abutting portion 44 protrudes toward the non-skin side sheet 3 from the top of the cavity in the protruding boundary groove portion 43, and the skin facing surface and the skin facing surface of the protruding portion 42 are formed in a flat shape. Therefore, in the portion corresponding to the protruding boundary groove portion 43, it is difficult to cause a step difference between the wearer's skin and the sanitary napkin 1, and the adhesion to the body shape is excellent, so that it is difficult to give the wearer an uncomfortable feeling. Further, in the sanitary napkin 1, the basis weight of the protruding abutting portion 44 is formed to be smaller than the basis weight of the first region 41F in the absorbent core 41 and the basis weight of the second region 41R, and is larger than the base of the protruding boundary groove portion 43. Significant, therefore, even if the sanitary napkin 1 is worn in a slightly offset state, sufficient absorption performance can be exhibited. Further, as shown in FIG. 2, the first region 41F and the second region 41R of the sanitary napkin in the absorbent core 41 have a small absorbent portion 46 having a relatively large basis weight and a groove portion 45 having a relatively small basis weight, so that it is easy to The groove portion 45 is bent at the starting point, and it is not easy to give the wearer an uncomfortable feeling. In the sanitary napkin 1, the first region 41F and the second region 41R have the groove portion 45 and the small absorbing portion 46, and the intermediate portion 41M has the protruding portion 42, the protruding boundary groove portion 43, and the protruding core portion 41 of the absorbent core 41. Since it is integrally formed, it is excellent in the fit to the body shape, and it is not easy to give the wearer an uncomfortable feeling. Although the preferred embodiment of the present invention has been described above, the absorbent article of the present invention is not limited to the sanitary napkin 1 of the present embodiment, and can be appropriately changed. For example, in the sanitary napkin 1, as shown in FIGS. 1 and 2, the intermediate portion 41M of the absorbent core 41 is disposed within the region of the excretion opposing region B of the sanitary napkin 1, and the intermediate portion 41M of the absorbent core 41 is The excretion of the sanitary napkin 1 is inconsistent with the area B, but it can also be consistent. That is, as in the case of the sanitary napkin 1, in the case where the sanitary napkin 1 includes a pair of wing portions 1W on both outer sides of the lateral direction Y, the intermediate portion 41M exists in the wing portions 1W which are disposed at intervals in the longitudinal direction X among the respective wing portions 1W. It can be between the roots. More specifically, the intermediate portion 41M of the sanitary napkin 1 may exist over the root portion of the wing portion 1W which is disposed at intervals in the longitudinal direction X of each of the wing portions 1W. Further, the size of the front region A of the sanitary napkin 1 is substantially the same as the size of the first region 41F of the absorbent core 41, and the size of the rear region C of the sanitary napkin 1 is substantially the same as the size of the second region 41R of the absorbent core 41. The length of the longitudinal direction X of the intermediate portion 41M of the sanitary napkin 1 is the same as the length between the root portions of the wing portions 1W which are spaced apart from each other in the longitudinal direction X of each of the wing portions 1W. Also in this configuration, the same effect as the above-described sanitary napkin 1 can be obtained. In addition, the sanitary napkin 1 of the present embodiment is preferably a so-called night-use physiological sanitary napkin having a total length of 30 cm or more in the longitudinal direction X from the viewpoint of ensuring a sufficient absorption amount. Further, as shown in Fig. 2, in the absorbent core 41 of the sanitary napkin 1, the front side convex portion 422, the both side edges 422s, 422s are not bent from the side edges 41s of the absorbent core 41 along the longitudinal direction X, respectively. The top portion 422t extends straight in a straight line, and the width d of the front side convex portion 422 continuously decreases from the side edge 41s of the absorbent core 41 along the longitudinal direction X to the top portion 422t, but the width d of the front side convex portion 422 can be only decreased. , can also be stepped down. The front side convex portion 422 is preferably straightly extended in a straight line from the viewpoint of improving the fit to the body and improving the mold release property when the stacking recess 55 is detached from the above-described fiber assembly device. The width d of the convex portion 422 continuously decreases from the both side edges 41s, 41s of the absorbent core 41 along the longitudinal direction X toward the top portion 422t. The same applies to the rear side convex portion 423. Further, the first region 41F and the second region 41R of the sanitary napkin 1 have the same thickness, but may be different in thickness from each other as long as they are smaller than the thickness of the protruding portion 42. Further, the first region 41F and the second region 41R of the sanitary napkin 1 have the same basis weight, but may have different basis weights as long as they are smaller than the basis weight of the protruding portion 42. Further, the first region 41F and the second region 41R of the sanitary napkin 1 have the groove portion 45 and the small absorbing portion 46, but may not have the groove portion 45 and the small absorbing portion 46, and may have groove portions 45 and small shapes of different shapes. Absorbing portion 46. Further, the absorbent core 41 of the sanitary napkin 1 is integrally formed as a whole, but may not be integrally formed. For example, the absorbent core 41 may be formed of a core material at a predetermined height from the first region 41F to the second region 41R, and then a member formed of another core material may be disposed to form the protruding portion 42. Further, as shown in Fig. 1, the sanitary napkin 1 has the side sheets 5 disposed on both sides of the longitudinal direction X of the skin-facing side of the skin side sheet 2, but may be on the side from the viewpoint of preventing leakage of the body fluid side. The free end of the sheet 5 is disposed in an elastic state in an elongated state in the longitudinal direction X, thereby forming a leak-proof cuff that can stand up toward the wearer's side. Further, as shown in FIG. 1, the sanitary napkin 1 has a pair of wing portions 1W and 1W on the left and right sides of the discharge opposing region B along the longitudinal direction X, but may not have a pair of wing portions 1W and 1W. Further, in addition to the pair of wing portions 1W and 1W, a pair of rear wing portions may be provided on the right and left sides of the longitudinal direction X in the rear region C. Further, in the sanitary napkin 1 shown in Fig. 1, as a linear groove in which the skin side panel 2 and the absorbent core 41 are compressed and integrated, a pair of longitudinal compression grooves 73 extending in the longitudinal direction X of the absorbent core 41 are provided. The compression groove 73 is formed to protrude through the protruding portion 42 of the absorbent core 41, the protruding boundary groove portion 43, and the protruding abutting portion 44 in the longitudinal direction X from the viewpoint of further preventing leakage. Further, the sanitary napkin 1 shown in Fig. 7 may be located inside the rear end portion of the longitudinal direction X in the discharge opposing region B of the absorbent body 4, beside the pair of longitudinal compression grooves 73 and the pair of first transverse compression grooves 71. The position has a second transverse compression groove 72 extending in the lateral direction Y, respectively. By providing the second lateral compression groove 72 on the inside of the sanitary napkin 1 as described above, the sanitary napkin 1 can be deformed from the second lateral compression groove 72 as a starting point, thereby further improving the fit to the skin. Alternatively, the sanitary napkin 1 shown in Fig. 8 may be provided with a pair of second longitudinal compression grooves 73A, 73A on the outer side of the lateral direction Y of one of the longitudinal compression grooves 73, 73 in the discharge opposing region B. By providing the second vertical compression grooves 73A and 73A, it is possible to further prevent the distortion of the excretion portion while maintaining the absorbability and flexibility of the first region 41F and the second region 41R. The second longitudinal compression grooves 73A and 73A are more preferably disposed at the intermediate portion 41M in the longitudinal direction X from the viewpoint of preventing twisting and conformability. Further, in the absorbent core 41 of the sanitary napkin 1, the groove portion 45 may be formed on the opposite side of the skin. Thereby, liquid diffusibility and liquid retention are improved. Further, in the sanitary napkin 1, as shown in Fig. 1, the size of the front region A of the sanitary napkin 1 substantially coincides with the size of the first region 41F of the absorbent core 41, but may not coincide with each other. Further, the size of the rear region C of the sanitary napkin 1 substantially coincides with the size of the second region 41R of the absorbent core 41, but may not coincide. Further, the absorbent article of the present invention may be a pad (white tape gasket), an incontinence pad or the like in addition to the sanitary napkin. Regarding the above-described embodiments of the present invention, the following absorbent articles are further disclosed. <1> An absorbent article comprising: an absorbent body comprising an absorbent core having a shape elongated in a longitudinal direction corresponding to a front and rear direction of the wearer; and a skin side sheet covering the skin of the absorbent body a non-skin side panel covering the non-skin opposing surface of the absorber, the absorbent article having a front region and a rear region, wherein the absorbent core is located in the first region on the front region side An intermediate portion is formed between the second regions on the rear region side, and the intermediate region includes a protruding portion having a thickness thicker than the thickness of the first region and the second region, wherein the protruding portion protrudes toward the non-skin side sheet, and the absorption is as viewed from above. In the case of a core, the protruding portion has a maximum width portion having the largest length in a lateral direction orthogonal to the longitudinal direction of the absorbent core, and a length of the lateral direction of the maximum width portion is the same as a length of the transverse direction of the absorbent core. <1> The above-mentioned absorbent article, wherein the protruding portion includes a protruding central portion, and the protruding central portion is the maximum width portion extending in the longitudinal direction along the both side edges of the absorbent core along the longitudinal direction Formed by the length. <3> The above-mentioned absorbent article, wherein the protruding portion includes a front side convex portion that protrudes from the protruding central portion toward the front side or the rear side such that the lateral length is narrower than the maximum width portion. Rear side convex part. The above-mentioned absorbent article according to any one of the above aspects, wherein the absorbent core has a protruding boundary groove portion that defines a boundary between the protruding portion and a portion other than the protruding portion in the intermediate portion. The protruding boundary groove portion is formed over the entire length of the absorbent core in the lateral direction. <5> The above-mentioned absorbent article, wherein the protruding boundary groove portion is formed to be recessed from the non-skin opposing surface side of the absorbent core toward the skin facing surface side. <6> The absorbent article according to <4> or <5>, wherein the protruding boundary groove portion is formed to have a basis weight lower than a basis weight of the first region and the second region in the absorbent core. The absorbent article according to any one of the above aspects, wherein the absorbent core has a protruding boundary groove portion that defines a boundary between the protruding portion and a portion other than the protruding portion in the intermediate portion. a region other than the protruding portion and the protruding boundary groove portion has a protruding abutting portion in the intermediate portion, wherein the protruding abutting portion has a basis weight smaller than a basis weight of the protruding portion and is the first region of the absorbent core And the basis weight of the second region is below. <8> The above-mentioned absorbent article, wherein the protruding adjacent portion protrudes toward the non-skin side sheet from a top portion of the void in the protruding boundary groove portion, and the skin facing surface is formed flat. The absorbent article according to any one of the above aspects, wherein the protruding portion does not have a basis weight on the opposite side of the skin than the first region and the second region in the absorbent core A recess with a low basis weight. The above-mentioned absorbent article according to any one of the above aspects, wherein the absorbent core has a uniform thickness from the first region to the second region from the first region on the opposite side of the skin. Floor. <11> The above absorbent article according to any one of <1> to <10> wherein the entire absorbent core is formed by integral molding. The absorbent article according to any one of the above aspects, wherein the protruding portion includes: the maximum width portion extending in the longitudinal direction along the both side edges of the absorbent core along the longitudinal direction The protruding center portion formed by the length and the front side convex portion and the rear side convex portion protruding from the protruding central portion toward the front side and the rear side in such a manner that the lateral length is narrower than the maximum width portion is One of the front side convex portions is disposed at a longitudinal end portion of the protruding central portion, and one rear side convex portion is disposed at a longitudinal rear end portion of the protruding central portion, and the front side convex portion and the rear side convex portion are respectively The lateral lengths of the two sides are formed in such a manner that the lateral length thereof decreases toward the top of the central portion of the lateral direction. The absorbent article according to any one of the above aspects, wherein the protruding portion includes a protruding central portion, and the protruding central portion is the two of the maximum width portions along the longitudinal direction of the absorbent core The side edge is formed by extending a specific length in the longitudinal direction, and the protruding central portion is formed to have a small thickness from a central portion in the lateral direction toward both sides in the longitudinal direction when viewed in a cross section. The absorbent article according to any one of the above aspects, wherein the protruding portion includes a protruding central portion, and the protruding central portion is the maximum width portion along the longitudinal direction of the absorbent core The side edge is formed by extending a specific length in the longitudinal direction, and the protruding central portion is formed such that the base weight thereof becomes smaller from the central portion of the lateral direction toward both sides in the longitudinal direction when viewed in cross section. The above-mentioned absorbent article according to any one of the above aspects, wherein the absorbent core has a protruding boundary groove portion that defines a boundary between the protruding portion and a portion other than the protruding portion in the intermediate portion. And a region other than the protruding portion and the protruding boundary groove portion has a protruding abutting portion in the intermediate portion, wherein a base weight of the protruding abutting portion is smaller than a basis weight of the protruding portion, and a base of the protruding boundary groove portion is larger than . <16> The above-mentioned absorbent article, wherein the thickness of the protruding abutting portion is the same as a thickness of the first region and the second region in the absorbent core, or is greater than the first region and the second region The thickness is small. The above-mentioned absorbent article according to any one of the above aspects, wherein the longitudinal direction of the protruding portion is 25% or more and 80% or less of the total length of the absorbent core in the longitudinal direction. The above-mentioned absorbent article according to any one of the above aspects, wherein the protruding portion includes a protruding central portion, and the protruding central portion is the two of the maximum width portions along the longitudinal direction of the absorbent core The side edge is formed to extend in the longitudinal direction by a specific length, and the longitudinal direction of the protruding central portion of the protruding portion is 20% or more and 80% or less of the total length of the protruding portion in the longitudinal direction. The absorbent article according to any one of the above aspects, wherein the absorbent core has a protruding boundary groove portion that defines a boundary between the protruding portion and a portion other than the portion, and the intermediate portion includes the The protruding portion and the region other than the protruding boundary groove portion have protruding adjacent portions, and the absorbent article has a linear groove formed by integrating the skin side sheet and the absorbent core, and the absorbent article has a longitudinal direction of the absorbent core One of the pair of longitudinal compression grooves is formed, and the vertical compression groove is formed to extend longitudinally through the protruding portion, the protruding boundary groove portion, and the protruding abutting portion. <20> The absorbent article according to <19>, wherein the absorbent article has a linear groove formed by compressing and integrating the skin side sheet and the absorbent core, wherein the absorbent article has a lateral direction inside the pair of longitudinal compression grooves. A transverse compression groove extending upward. <19> The absorbent article according to <19>, wherein the absorbent article has a pair of second longitudinal compression grooves on an outer side of the intermediate portion in a lateral direction of the pair of longitudinal compression grooves in the longitudinal direction. The above-mentioned absorbent article according to any one of the above aspects, wherein the first region and the second region of the absorbent core are provided with a groove portion extending in the lateral direction, and the groove portion is The basis weight of the material forming the absorbent core is lower than the portion of the first region and the second region other than the groove portion. The above-mentioned absorbent article according to any one of the above aspects, wherein the first region and the second region of the absorbent core are provided with a groove portion extending in the longitudinal direction, and the groove portion is The basis weight of the material forming the absorbent core is lower than the portion of the first region and the second region other than the groove portion. The above-mentioned absorbent article according to any one of <1> to <23>, wherein the outer side of the absorbent article includes a pair of wing portions, and the intermediate portion is present in each of the wing portions in the longitudinal direction Between the roots of the wings of the open spacing configuration. <25> The absorbent article according to <24>, wherein the intermediate portion of the absorbent core is interposed between the root portions of the wing portions. <26> The absorbent article according to <24>, wherein the longitudinal length of the intermediate portion of the absorbent core is the same as the length between the root portions of the wing portions. <27> The above-mentioned absorbent article according to any one of the above aspects, wherein the absorbent article has a leakage preventing flange that can stand up toward the wearer side on both sides of the left and right sides of the absorbent article. <28> The absorbent article according to any one of <1> to <27> wherein the absorbent article is a sanitary napkin having a total length of 30 cm or more. INDUSTRIAL APPLICABILITY According to the present invention, even when the absorbent article is worn in a state of being slightly offset, it is possible to ensure a sufficient absorption amount and excellent adhesion to the body shape, so that it is difficult to bring to the wearer. Discomfort.

1‧‧‧生理用衛生棉1‧‧‧Physical sanitary napkins

1S‧‧‧側翼部1S‧‧‧Flanking

1W‧‧‧翼部1W‧‧‧wing

2‧‧‧肌膚側片2‧‧‧Skin side film

3‧‧‧非肌膚側片3‧‧‧Non-skin side panels

4‧‧‧吸收體4‧‧‧Acceptor

5‧‧‧側片5‧‧‧ side film

6‧‧‧接合部6‧‧‧ joints

7‧‧‧線狀壓縮槽7‧‧‧Linear compression groove

41‧‧‧吸收性芯41‧‧‧Absorbent core

41F‧‧‧第一區域41F‧‧‧First Area

41R‧‧‧第二區域41R‧‧‧Second area

41M‧‧‧中間區域41M‧‧‧Intermediate area

41s‧‧‧側緣41s‧‧‧ side edge

42‧‧‧突出部42‧‧‧Protruding

43‧‧‧邊界槽部43‧‧‧Boundary groove

43a‧‧‧前方突出邊界槽部43a‧‧‧ front protruding boundary groove

43c‧‧‧後方突出邊界槽部43c‧‧‧ Rear protruding boundary groove

44‧‧‧突出鄰接部44‧‧‧ protruding adjacent parts

44a‧‧‧前方突出鄰接部44a‧‧‧ front protruding abutment

44c‧‧‧後方突出鄰接部44c‧‧‧ rear protruding abutment

45‧‧‧槽部45‧‧‧Slots

45X‧‧‧縱槽45X‧‧‧Longitudinal slot

45Y‧‧‧橫槽45Y‧‧‧ transverse slot

46‧‧‧小吸收部46‧‧‧Small Absorption Department

54‧‧‧積纖筒54‧‧‧Fiber

55‧‧‧堆集用凹部55‧‧‧Recession for stacking

56‧‧‧底面56‧‧‧ bottom

56b‧‧‧凹部56b‧‧‧ recess

57‧‧‧第一難通氣性部件57‧‧‧First non-ventilating parts

58‧‧‧第二難通氣性部件58‧‧‧Second refractory parts

71‧‧‧第一橫壓縮槽71‧‧‧First transverse compression slot

72‧‧‧第二橫壓縮槽72‧‧‧Second horizontal compression groove

73‧‧‧縱壓縮槽73‧‧‧Longitudinal compression groove

73A‧‧‧第二縱壓縮槽73A‧‧‧Second longitudinal compression groove

421‧‧‧突出中央部421‧‧‧ highlight the central department

422‧‧‧前方側凸部422‧‧‧Front side convex

422s‧‧‧側邊422s‧‧‧ side

422t‧‧‧頂部422t‧‧‧ top

423‧‧‧後方側凸部423‧‧‧ Rear side convex

423s‧‧‧側邊423s‧‧‧ side

423t‧‧‧頂部423t‧‧‧ top

A‧‧‧前方區域A‧‧‧ front area

B‧‧‧排泄相對區域B‧‧‧Excretion relative area

C‧‧‧後方區域C‧‧‧ rear area

CL‧‧‧中心線CL‧‧‧ center line

d‧‧‧寬度‧‧‧Width

K‧‧‧空間K‧‧‧ Space

L1‧‧‧全長L1‧‧‧ Full length

L2‧‧‧全長L2‧‧‧ Full length

L3‧‧‧全長L3‧‧‧ Full length

L4‧‧‧全長L4‧‧‧ Full length

R‧‧‧方向R‧‧ Direction

RS‧‧‧連續層RS‧‧‧Continuous layer

T1‧‧‧厚度T1‧‧‧ thickness

T2‧‧‧厚度T2‧‧‧ thickness

X‧‧‧縱向X‧‧‧ portrait

Y‧‧‧橫向Y‧‧‧ horizontal

圖1係表示作為本發明之吸收性物品之一個較佳實施方式的生理用衛生棉之肌膚相對面側(肌膚側片側)之平面圖。 圖2係圖1所示之生理用衛生棉所具有的吸收性芯中之非肌膚相對面側之平面圖。 圖3係示意性地表示圖2之Ⅲ-Ⅲ截面的截面圖。 圖4係示意性地表示圖1之Ⅳ-Ⅳ截面的截面圖。 圖5係示意性地表示圖1之Ⅳ-Ⅳ截面的截面圖。 圖6(a)及圖6(b)係說明圖1所示之生理用衛生棉所具有之吸收性芯的製造步驟之說明圖。 圖7係表示作為本發明之吸收性物品之其他較佳實施方式的生理用衛生棉之肌膚相對面側(肌膚側片側)的平面圖。 圖8係表示作為本發明之吸收性物品之其他較佳實施方式的生理用衛生棉之肌膚相對面側(肌膚側片側)的平面圖。Fig. 1 is a plan view showing a skin-facing side (skin side sheet side) of a sanitary napkin as a preferred embodiment of the absorbent article of the present invention. Fig. 2 is a plan view showing the non-skin opposing side of the absorbent core of the sanitary napkin shown in Fig. 1. Fig. 3 is a cross-sectional view schematically showing a section III-III of Fig. 2. Fig. 4 is a cross-sectional view schematically showing a section IV-IV of Fig. 1. Fig. 5 is a cross-sectional view schematically showing a section IV-IV of Fig. 1. Fig. 6 (a) and Fig. 6 (b) are explanatory views for explaining a manufacturing procedure of an absorbent core provided in the sanitary napkin shown in Fig. 1. Fig. 7 is a plan view showing the skin-facing side (skin side sheet side) of the sanitary napkin as another preferred embodiment of the absorbent article of the present invention. Fig. 8 is a plan view showing the skin-facing side (skin side sheet side) of the sanitary napkin as another preferred embodiment of the absorbent article of the present invention.

Claims (10)

一種吸收性物品,其包含:吸收體,該吸收體包含在與穿著者之前後方向對應之縱向上較長之形狀的吸收性芯;包覆該吸收體之肌膚相對面之肌膚側片;及包覆該吸收體之非肌膚相對面的非肌膚側片,且該吸收性物品具有前方區域及後方區域,上述吸收性物品之特徵在於: 上述吸收性芯在位於上述前方區域側之第一區域與位於上述後方區域側之第二區域之間具有中間區域,該中間區域包含厚度大於該第一區域及該第二區域的厚度之突出部, 上述突出部向上述非肌膚側片突出, 在俯視上述吸收性芯時,上述突出部具有在與該吸收性芯之上述縱向正交之橫向上長度最大的最大寬度部,該最大寬度部之橫向之長度與上述吸收性芯之該橫向的長度相同。An absorbent article comprising: an absorbent body comprising an absorbent core having a shape that is longer in a longitudinal direction corresponding to a front and rear direction of the wearer; and a skin side panel covering the opposite side of the skin of the absorbent body; a non-skin side panel covering the non-skin opposing surface of the absorbent body, wherein the absorbent article has a front region and a rear region, and the absorbent article is characterized in that the absorbent core is in a first region on the front region side An intermediate portion having a thickness greater than a thickness of the first region and the second region is formed between the second region on the side of the rear region, and the protruding portion protrudes toward the non-skin side panel. In the above absorbent core, the protruding portion has a maximum width portion having a maximum length in a lateral direction orthogonal to the longitudinal direction of the absorbent core, and a lateral length of the maximum width portion is the same as a length of the transverse direction of the absorbent core . 如請求項1之吸收性物品,其中: 上述突出部包含突出中央部,上述突出中央部係上述最大寬度部沿著上述吸收性芯之沿上述縱向之兩側緣在上述縱向上延伸特定之長度而形成。The absorbent article of claim 1, wherein: the protruding portion includes a protruding central portion, and the protruding central portion extends the specific length along the longitudinal edge of the absorbent core in the longitudinal direction along the longitudinal edge of the absorbent core And formed. 如請求項2之吸收性物品,其中: 上述突出部包含以橫向長度相比於上述最大寬度部變窄之方式自上述突出中央部向前方側或後方側凸出之前方側凸部或後方側凸部。The absorbent article according to claim 2, wherein: the protruding portion includes a front side convex portion or a rear side protruding from the protruding central portion toward the front side or the rear side so that the lateral length is narrower than the maximum width portion. Convex. 如請求項1之吸收性物品,其中: 上述吸收性芯在上述中間區域具有劃分出上述突出部與該突出部以外之部分之邊界的突出邊界槽部, 上述突出邊界槽部形成於上述吸收性芯之橫向之全長。The absorbent article according to claim 1, wherein: the absorbent core has a protruding boundary groove portion defining a boundary between the protruding portion and a portion other than the protruding portion in the intermediate portion, wherein the protruding boundary groove portion is formed in the absorbent The full length of the core. 如請求項1之吸收性物品,其中: 上述吸收性芯在上述中間區域具有劃分出上述突出部與該突出部以外之部分之邊界的突出邊界槽部,在上述中間區域中之除上述突出部及該突出邊界槽部以外之區域具有突出鄰接部, 上述突出鄰接部之基重小於上述突出部之基重,且為上述吸收性芯中之上述第一區域及上述第二區域之基重以下。The absorbent article of claim 1, wherein: the absorbent core has a protruding boundary groove portion defining a boundary between the protruding portion and a portion other than the protruding portion in the intermediate portion, and the protruding portion in the intermediate portion And a region other than the protruding boundary groove portion has a protruding abutting portion, wherein a basis weight of the protruding abutting portion is smaller than a basis weight of the protruding portion, and is less than a basis weight of the first region and the second region in the absorbent core . 如請求項1之吸收性物品,其中: 上述吸收性芯在肌膚相對面具有自上述第一區域起經過上述中間區域至上述第二區域之厚度均勻的連續層。The absorbent article of claim 1, wherein: the absorbent core has a continuous layer having a uniform thickness from the first region to the second region from the first region on the opposite side of the skin. 如請求項1之吸收性物品,其中: 上述突出部包含:上述最大寬度部沿著上述吸收性芯之沿上述縱向之兩側緣在上述縱向上延伸特定的長度而形成之突出中央部;及以自該突出中央部向前方側及後方側其橫向長度相比於上述最大寬度部變窄之方式凸出之前方側凸部及後方側凸部, 在上述突出中央部之縱向之前端部配置有一個上述前方側凸部,在上述突出中央部之縱向之後端部配置有一個上述後方側凸部, 上述前方側凸部及上述後方側凸部分別以自沿縱向之兩側部向位於橫向之中央部之頂部其橫向長度遞減的方式形成。The absorbent article according to claim 1, wherein: the protruding portion includes: a protruding central portion formed by extending the specific width portion along the longitudinal direction of the absorbent core in the longitudinal direction; and The front side convex portion and the rear side convex portion are protruded from the protruding central portion toward the front side and the rear side so that the lateral length thereof is narrower than the maximum width portion, and the longitudinal end portion of the protruding central portion is disposed at the front end portion One of the front side convex portions, and one rear side convex portion is disposed at a longitudinal rear end portion of the protruding central portion, and the front side convex portion and the rear side convex portion are laterally located from both sides in the longitudinal direction The top of the central portion is formed in such a manner that its lateral length is decreasing. 如請求項1之吸收性物品,其中: 上述吸收性芯在上述中間區域具有劃分出上述突出部與該突出部以外之部分之邊界的突出邊界槽部,在上述中間區域中之除上述突出部及該突出邊界槽部以外之區域具有突出鄰接部, 上述突出鄰接部之基重小於上述突出部之基重,且大於上述突出邊界槽部的基重。The absorbent article of claim 1, wherein: the absorbent core has a protruding boundary groove portion defining a boundary between the protruding portion and a portion other than the protruding portion in the intermediate portion, and the protruding portion in the intermediate portion And a region other than the protruding boundary groove portion has a protruding abutting portion, and a basis weight of the protruding abutting portion is smaller than a basis weight of the protruding portion and larger than a basis weight of the protruding boundary groove portion. 如請求項1之吸收性物品,其中: 上述吸收性芯具有劃分出上述突出部與該突出部以外之部分之邊界的突出邊界槽部,在上述中間區域中之除上述突出部及該突出邊界槽部以外的區域具有突出鄰接部, 上述吸收性物品具有在上述吸收性芯之縱向上延伸的一對縱壓縮槽,作為將上述肌膚側片與上述吸收性芯壓縮一體化而成之線狀槽, 上述縱壓縮槽以在縱向上縱穿上述突出部、上述突出邊界槽部、上述突出鄰接部之方式形成。The absorbent article of claim 1, wherein: the absorptive core has a protruding boundary groove portion that defines a boundary between the protruding portion and a portion other than the protruding portion, and the protruding portion and the protruding boundary in the intermediate portion The region other than the groove portion has a protruding abutting portion, and the absorbent article has a pair of longitudinal compression grooves extending in the longitudinal direction of the absorbent core, and is formed by linearly integrating the skin side sheet and the absorbent core. The groove, the longitudinal compression groove is formed to extend longitudinally through the protruding portion, the protruding boundary groove portion, and the protruding abutting portion. 如請求項1之吸收性物品,其中: 在上述吸收性芯之上述第一區域及上述第二區域配置有在橫向上延伸之槽部,該槽部之基重係與該第一區域及該第二區域中該槽部以外之部分相比,吸收性芯之形成材料之基重較低。The absorbent article of claim 1, wherein: the first region and the second region of the absorbent core are provided with a groove portion extending in a lateral direction, a basis weight of the groove portion and the first region and the The basis weight of the material forming the absorbent core is lower in the second region than in the portion other than the groove portion.
TW106144760A 2016-12-26 2017-12-20 absorbent articles TWI758380B (en)

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US4685915A (en) * 1984-04-06 1987-08-11 The Procter & Gamble Company Disposable diaper having density and basis weight profiled absorbent core
US7632258B2 (en) * 2003-03-19 2009-12-15 Kimberly-Clark Worldwide, Inc. Multilayer absorbent article
JP5383589B2 (en) * 2010-05-20 2014-01-08 ユニ・チャーム株式会社 Body fluid absorber and method for producing the same
JP5800520B2 (en) * 2010-09-16 2015-10-28 ユニ・チャーム株式会社 Body fluid absorbent article
JP5604500B2 (en) * 2012-11-27 2014-10-08 花王株式会社 Absorbent articles
JP6080262B2 (en) * 2013-11-20 2017-02-15 花王株式会社 Absorbent articles
JP6181027B2 (en) * 2014-10-30 2017-08-16 花王株式会社 Absorbent articles
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CN109069324B (en) 2020-10-23
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JPWO2018122899A1 (en) 2018-12-27
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