TWI727997B

TWI727997B - Absorbent articles

Info

Publication number: TWI727997B
Application number: TW105137377A
Authority: TW
Inventors: 鈴木陽一; 富田美奈; 針生涉
Original assignee: 日商花王股份有限公司
Priority date: 2015-11-20
Filing date: 2016-11-16
Publication date: 2021-05-21
Also published as: JP2017093733A; TW201722383A; JP6170986B2; CN108348373B; RU2700955C1; WO2017086133A1; CN108348373A

Abstract

本發明係一種吸收性物品，其具備包含複合片材之正面片材(12)、背面片材(13)及配設於兩片材間之吸收體(14)，且複合片材(1)具有沿物品長度方向之第1方向(X)及沿物品寬度方向之第2方向(Y)，經積層之第1片材(1)及第2片材(2)於複數個接合部接合，且第1片材(1)於接合部以外向遠離第2片材(2)之方向突出，而形成有向穿著者之肌膚側突出之凸部(4)，於複合片材(10)，作為凸部(4)，於第1方向(X)隔開間隔而形成有複數條沿第2方向(Y)延伸之連續凸部(40)，複數條連續凸部(40)具有向物品(100)之長度方向之一端側凸起而彎曲之彎曲部分。The present invention is an absorbent article, which is provided with a front sheet (12), a back sheet (13) and an absorbent body (14) arranged between the two sheets, and the composite sheet (1) It has a first direction (X) along the length direction of the article and a second direction (Y) along the width direction of the article. The laminated first sheet (1) and second sheet (2) are joined at a plurality of joints, And the first sheet material (1) protrudes away from the second sheet material (2) outside the joint part, and a convex part (4) protruding to the wearer's skin side is formed in the composite sheet material (10), As the convex portion (4), a plurality of continuous convex portions (40) extending in the second direction (Y) are formed at intervals in the first direction (X), and the plurality of continuous convex portions (40) have a direction toward the article ( 100) A curved portion in which one end side in the longitudinal direction is convex and curved.

Description

Absorbent articles

本發明係關於一種拋棄式尿布、經期衛生棉、失禁護墊等吸收性物品。The invention relates to absorbent articles such as disposable diapers, menstrual sanitary napkins, and incontinence pads.

先前，作為拋棄式尿布、經期衛生棉、失禁護墊等吸收性物品之正面片材，已知於朝向穿著者之肌膚側之肌膚側面藉由壓紋加工等而形成有凹凸形狀者。又，亦已知藉由於正面片材之肌膚側面形成凹凸形狀，而減少與穿著者之肌膚之接觸面積，提高透氣性，或降低對肌膚之黏附之技術。又，亦已知於吸收性物品之肌膚側面形成沿特定方向延伸之凸部及凹部之技術。例如，於專利文獻1中，記載有一種吸收性物品，其於吸收體形成有沿吸收性物品之寬度方向延伸之凹部，且以沿該凹部之內表面之方式配設有正面片材之與該凹部重合之部分；於專利文獻2中，亦記載有如下內容：於吸收性物品之肌膚側面，藉由壓紋加工，而形成有沿吸收性物品之寬度方向延伸之壓紋行，並將該壓紋行設定為向吸收性物品之長度方向之一端部凸起之彎曲形狀。又，本申請人先前提出有如下片材作為可用作吸收性物品之正面片材等之立體片材，即：經積層之第1片材及第2片材於複數個接合部相互接合，並且第1片材於接合部以外之部位向遠離第2片材之方向突出，而形成有向穿著者之肌膚側突出之凸部(例如，參照專利文獻3)。先前技術文獻專利文獻專利文獻1：日本專利特開平11-318976號公報專利文獻2：日本專利特開2003-230593號公報專利文獻3：日本專利特開2009-201964號公報Previously, as a front sheet of absorbent articles such as disposable diapers, menstrual napkins, and incontinence pads, it has been known that the side of the skin facing the wearer's skin is formed with uneven shapes by embossing or the like. In addition, it is also known to reduce the contact area with the wearer's skin due to the uneven shape formed on the skin side of the front sheet, improve air permeability, or reduce adhesion to the skin. In addition, there is also known a technique for forming protrusions and recesses extending in a specific direction on the side surface of the skin of an absorbent article. For example, Patent Document 1 describes an absorbent article in which a concave portion extending in the width direction of the absorbent article is formed in an absorbent body, and a surface sheet is arranged along the inner surface of the concave portion. The overlapping part of the recess; Patent Document 2 also describes the following: on the side of the skin of the absorbent article, by embossing, an embossed row extending in the width direction of the absorbent article is formed, and The embossing row is set in a curved shape that protrudes toward one end of the absorbent article in the longitudinal direction. In addition, the applicant previously proposed the following sheet as a three-dimensional sheet that can be used as a front sheet of an absorbent article, that is, a laminated first sheet and a second sheet are joined to each other at a plurality of joints, In addition, the first sheet protrudes in a direction away from the second sheet at a location other than the joining portion, and a convex portion protruding toward the wearer's skin is formed (for example, refer to Patent Document 3). Prior Art Documents Patent Documents Patent Document 1: Japanese Patent Laid-Open No. 11-318976 Patent Document 2: Japanese Patent Laid-Open No. 2003-230593 Patent Document 3: Japanese Patent Laid-Open No. 2009-201964

於專利文獻1及2中，關於形成於壓紋行間或槽部間之凸部，由於形成該凸部之片材與配設於其下之構件接觸，故而該凸部之柔軟性較差。另一方面，於專利文獻3所記載之立體片材中，凸部包含第1片材之與吸收體或第2片材未接合之部分，因此該凸部柔軟且肌膚觸感較佳，但期望進一步提高柔軟性並提高透氣性。本發明提供一種具備包含複合片材之正面片材、背面片材及配置於該等兩片材間之吸收體之吸收性物品。上述複合片材具有沿物品之長度方向之第1方向及沿物品之寬度方向之第2方向，並且經積層之第1片材及第2片材於複數個接合部相互接合。又，第1片材於上述接合部以外之部位向遠離第2片材之方向突出，而形成有向穿著者之肌膚側突出之凸部。於上述複合片材，作為上述凸部，於第1方向隔開間隔而形成有複數條沿第2方向延伸之連續凸部。複數條上述連續凸部具有彎曲部分，該彎曲部分於俯視上述複合片材時，向物品之長度方向之前端側或後端側凸起而彎曲。In Patent Documents 1 and 2, regarding the protrusions formed between the embossed rows or between the grooves, since the sheet forming the protrusions is in contact with the member disposed thereunder, the protrusions have poor flexibility. On the other hand, in the three-dimensional sheet described in Patent Document 3, the convex portion includes the portion of the first sheet that is not bonded to the absorber or the second sheet. Therefore, the convex portion is soft and has a good touch on the skin, but It is desired to further improve flexibility and improve air permeability. The present invention provides an absorbent article provided with a front sheet including a composite sheet, a back sheet, and an absorber arranged between the two sheets. The composite sheet has a first direction along the longitudinal direction of the article and a second direction along the width direction of the article, and the laminated first sheet and second sheet are joined to each other at a plurality of joints. In addition, the first sheet material protrudes in a direction away from the second sheet material at a location other than the above-mentioned joining part, and a convex part protruding to the wearer's skin side is formed. In the composite sheet, as the protrusions, a plurality of continuous protrusions extending in the second direction are formed at intervals in the first direction. The plurality of continuous convex portions have a curved portion that is convex and curved toward the front end side or the rear end side in the longitudinal direction of the article when the composite sheet is viewed from above.

本發明係關於一種可消除上述先前技術所具有之缺點之吸收性物品。以下，基於本發明之較佳之實施形態，一面參照圖式，一面對本發明進行說明。於圖1及圖2中，示有作為本發明之吸收性物品之一實施形態之拋棄式尿布100(以下，亦簡稱為尿布100)之基本構造。如圖1及圖2所示，尿布100具備液體透過性之正面片材12、液體不透過性之背面片材13、及配置於兩片材12、13之間之吸收體14。關於背面片材13，所謂液體不透過性係亦包括液體難透過性之概念，背面片材13除完全不讓液體通過之情形以外，亦包括包含撥水性之片材等之情形等。尿布100具有：物品長度方向Xa，其係穿著時與穿著者之前後方向一致之方向；及物品寬度方向Ya，其於將尿布100如圖1所示呈平面狀鋪展之狀態下，與物品長度方向Xa正交。又，尿布100於物品長度方向Xa具有穿著時配置於穿著者之腹側之腹側部A、穿著時配置於穿著者之背側之背側部B、及位於腹側部A與背側部B之間之胯下部C。尿布100係展開型之拋棄式尿布，於背側部B之兩側緣部設置有黏扣帶17，於腹側部A之外表面，設置有固定該黏扣帶17之著扣區域18。尿布100之吸收體14具備吸收性芯體14a及包裹該吸收性芯體14a之包芯片材14b。吸收性芯體14a可包含例如紙漿纖維等吸液性纖維之纖維堆積體、或吸液性纖維與吸水性聚合物之混合纖維堆積體。作為吸液性纖維，例如可列舉紙漿纖維、嫘縈纖維、棉纖維、乙酸纖維素等纖維素系之親水性纖維。除纖維素系之親水性纖維以外，亦可使用藉由界面活性劑等將包含聚烯烴、聚酯、聚醯胺等合成樹脂之纖維親水化而成者。作為包芯片材14b，例如可使用衛生紙或透水性之不織布。包芯片材14b既可為以1片包裹吸收性芯體14a之整體，亦可為使2片以上組合而包裹吸收性芯體14a。作為背面片材13，可使用液體不透過性或撥水性之樹脂膜、樹脂膜與不織布之層壓片材等。於尿布100之長度方向Xa之兩側，配設有具有彈性構件15a之立體褶皺形成用之片材15，藉由該彈性構件15a之收縮，會於穿著狀態下之胯下部C形成向穿著者之肌膚側立起之立體褶皺。又，於胯下部C之配設於腿圍之部位，以伸長狀態配設有腿部彈性構件16，藉由其收縮，會於穿著狀態下之胯下部C形成使對穿著者之腿圍之服貼性提高之腿褶皺。第1實施形態之拋棄式尿布100之正面片材12包含圖3所示之複合片材10。如圖3所示，複合片材10具有沿尿布100之長度方向(物品長度方向)Xa之第1方向X、及沿尿布100之寬度方向(物品寬度方向)Ya之第2方向Y。又，如圖3所示，複合片材10具有以互不相同之圖案形成有凸部4之中央區域M、及位於該中央區域M之兩側之一對側部區域S、S。中央區域M位於尿布100之寬度方向(物品寬度方向)Ya之中央部，一對側部區域S、S形成於中央區域M之沿第2方向Y之兩側緣之外側。圖4係表示複合片材10之一部分之放大立體圖，圖5係表示複合片材10之一部分之放大俯視圖。於圖4及圖5中，示有複合片材10之配設於胯下部C之一部分。再者，側部區域S形成於相對於沿尿布100之長度方向Xa之中央線Lc左右對稱之位置，於側部區域S各者，以相同圖案形成有凹凸。如圖5及圖6所示，複合片材10於中央區域M及側部區域S，均為經積層之第1片材1及第2片材2藉由壓紋加工局部接合而形成有複數個接合部3，且經積層之第1片材1及第2片材2於複數個接合部3相互接合。而且，於中央區域M及側部區域S之任一者，均為第1片材1於上述接合部3以外之部位向遠離第2片材2之方向突出，而形成有向穿著者之肌膚側突出之凸部4。複合片材10於中央區域M及側部區域S之任一者，均為第2片材2側之面大致平坦，且於第1片材1側形成有起伏較大之凹凸。第1片材1及第2片材2由片材材料構成。作為片材材料，例如可使用不織布、織布及針織布等纖維片材、或膜等，就肌膚觸感等觀點而言，較佳為使用纖維片材，尤佳為使用不織布。構成第1片材1及第2片材2之片材材料之種類既可相同，或亦可不同。作為將不織布用作構成第1片材1及第2片材2之片材材料之情形時之不織布，例如可列舉熱風不織布、紡黏不織布、水刺不織布、熔噴不織布、樹脂黏合不織布、針刺不織布等。亦可使用將該等不織布組合2種以上而成之積層體、或將該等不織布與膜等組合而成之積層體。其等之中，較佳為使用熱風不織布或紡黏不織布。用作構成第1片材1及第2片材2之片材材料之不織布之基重較佳為10 g/m² 以上，更佳為15 g/m² 以上，又，較佳為40 g/m² 以下，更佳為35 g/m² 以下。不織布之基重較佳為10 g/m² 以上40 g/m² 以下，進而較佳為15 g/m² 以上35 g/m² 以下。作為構成不織布之纖維，可使用包含各種熱塑性樹脂之纖維。作為熱塑性樹脂，可列舉聚乙烯或聚丙烯等聚烯烴、聚對苯二甲酸乙二酯等聚酯、尼龍6或尼龍66等聚醯胺、聚丙烯酸、聚甲基丙烯酸烷基酯、聚氯乙烯、聚偏二氯乙烯等。該等樹脂可單獨使用1種，或作為2種以上之摻合物而使用。又，可以芯鞘型或並列型等複合纖維之形態使用。於複合片材10之中央區域M，如圖4～圖6所示，於第1方向X隔開固定距離而形成有複數條沿第2方向Y連續延伸之連續凸部40。而且，該等複數條連續凸部40分別具有彎曲部分，該等彎曲部分於俯視複合片材10時，向尿布100之長度方向即物品長度方向Xa之前端1a側凸起而彎曲。所謂前端1a側係指穿著時配置於穿著者之腹側之側，所謂後端1b側係指穿著時朝向穿著者之背側之側。對於無前後之區別之吸收性物品，將物品長度方向Xa之兩端中之任一者設定為前側，另一者設定為後側。本發明中之連續凸部40亦可具有向物品長度方向Xa之後端1b側凸起而彎曲之彎曲部分。此處，所謂「具有彎曲部分」之表現包括兩種情形，一種為如圖7所示於連續凸部40之第2方向Y之兩端部4s、4s間具有一個彎曲部分之情形，另一種為如圖8(a)所示於連續凸部40之第2方向Y之兩端部4s、4s間具有複數個彎曲部分R之情形。又，所謂「具有彎曲部分」之表現亦包括連續凸部40之整體為彎曲部分R之情形。本實施形態之複合片材10之連續凸部40於兩端部4s、4s間具有一個彎曲部分R。又，關於連續凸部40，各自之整體為彎曲部分R，且各自之整體向物品長度方向Xa之前端1a側(或後端1b側)凸起而彎曲。又，於本實施形態之複合片材10中，如圖3所示，所有連續凸部40之彎曲部分之凸起之朝向一致。於圖8(b)及圖8(c)所示之例中，複數個連續凸部40之彎曲部分之凸起之朝向亦一致。於複合片材10之一對側部區域S、S，作為第1片材1於接合部3以外之部位向遠離第2片材2之方向突出而形成之凸部4，如圖5所示，形成有第1凸部41及第2凸部42。形成於側部區域S之凸部4(第1凸部41及第2凸部42)如圖5所示於俯視時形成為散點狀，且形成為沿第1方向X及第2方向Y之各者分散之狀態。形成於側部區域S之凸部4(第1凸部41及第2凸部42)係以與形成於中央區域M之凸部即連續凸部40不同之圖案所形成。凸部之圖案不同之表現包括僅凸部之配置不同之情形、凸部之形態不同之情形、及該等兩者均不同之情形中之任一者。凸部之配置不同之態樣亦包括凸部間之距離不同之情形。又，凸部之形態不同之態樣亦包括凸部之俯視形狀不同之情形。於本實施形態之複合片材10中，凸部之配置及形態於中央區域M與一對側部區域S、S不同。又，於中央區域M及側部區域S之接合部3之各者，成為第1片材1及第2片材2中之一者或兩者之構成纖維之構成樹脂經熔融固化之狀態，又，於接合部3之各者，第1片材1及第2片材2與其他部分(接合部以外之部分)相比均高密度化。即，複合片材10之接合部3係第1片材1與第2片材2被一體地加熱及加壓而形成之熱熔合部，藉由一片材或兩片材之構成纖維之構成樹脂之熔融及其後之固化而將兩片材相互結合。於接合部3之各者，分別較佳為第1片材1及第2片材2兩者經熔融固化。又，於中央區域M及側部區域S之任一者，均亦可將第1片材1與第2片材2之間藉由熱熔合以外之接合手段、例如熱熔接著劑等接著劑而形成接合部3。於第1實施形態之尿布100中，構成正面片材12之複合片材10具有沿第2方向Y延伸之複數條連續凸部40，因此與穿著者肌膚之接觸面積減少，且於與穿著者肌膚之間確保了透氣性。而且，該等連續凸部40具有彎曲部分R，因此與不具有彎曲部分之情形時相比，該等連續凸部40不易被壓扁。因此，既便於在穿著過程中被施加穿著壓力之情形時，連續凸部40亦不易被壓扁，連續凸部40間等之通氣路徑得以穩定地維持，因此尿布100成為透氣性及防悶濕性優異者。又，因使連續凸部40彎曲，而使得連續凸部40不易被壓扁，故藉由未與第2片材2接合之第1片材1而形成之連續凸部40之頂部之柔軟性優異，肌膚觸感亦良好。又，第1實施形態中之複合片材10之連續凸部40之各者僅具有一個彎曲部分R，因此例如與如圖8(a)所示連續凸部40具有複數個彎曲部分R之情形時相比，具有連續凸部40對沿長度方向之穿著者之肌膚之活動的追隨性較佳，且不易摩擦穿著者之肌膚之優點。又，本實施形態中之連續凸部40各自之整體向物品長度方向Xa之前端1a側凸起而彎曲，因此具有易於與穿著者之身體貼合而服貼之優點。該效果於向物品長度方向Xa之後端1b側凸起而彎曲之情形時亦同樣奏效，但就易於遵循鼓起之腹部之形狀從而服貼性更優異之方面而言，較佳為如本實施形態之尿布100般，向物品長度方向Xa之前端1a側凸起而彎曲。又，複數條連續凸部40之彎曲部分之凸起之朝向一致可使相鄰之連續凸部40之彎曲部分近接，從而彎曲部分整體易於一體地發揮功能，對抗應力，將力分散，因此就防止各連續凸部之被壓扁難度降低之觀點而言較佳。於第1實施形態之尿布100中，如圖3所示，具有以互不相同之圖案形成之凸部4之中央區域M及其兩側之側部區域S、S係以跨及尿布100之長度方向之全長之方式形成，但於本發明之吸收性物品中，包含具有彎曲部分R之複數條連續凸部40之區域亦可僅形成於物品長度方向之任一部位，例如，亦可僅形成於胯下部C、僅形成於腹側部A、或僅形成於背側部B。具有彎曲部分R之複數條連續凸部40於尿布100之長度方向Xa上至少形成於胯下部C可使不易被壓扁之連續凸部區域位於排泄點附近，因此就可使形成於該區域之通氣路徑(連續之凹部)有效地發揮功能而除去悶濕因素之觀點而言較佳。又，就使不易被壓扁之連續凸部區域更近接於排泄點之觀點而言，具有彎曲部分R之複數條連續凸部40較佳為至少形成於胯下部之寬度方向中央部。包含具有彎曲部分R之複數條連續凸部40之區域進而較佳為自胯下部C跨及至腹側部A及背側部B中之任一者或兩者而形成、或跨及吸收體14之全長，進而以跨及尿布100之全長為佳。如圖5所示，於複合片材10之中央區域M之連續凸部40彼此間，形成有與連續凸部40同樣地彎曲之壓紋區域E。換言之，於第1方向X，第1片材1與第2片材2之間未接合之連續凸部40和壓紋區域E交替配置。於壓紋區域E形成有第1接合部31及第2接合部32作為經積層之第1片材1及第2片材2藉由壓紋加工局部接合而形成之接合部3。第1接合部31具有於第1方向X上較長之形狀之長方形狀，具有與第1接合部31之長方形之短邊相同之長度之1邊的正方形狀之4個第2接合部32以使各自之角部與該第1接合部31之4個角部對向之狀態近接配置於該第1接合部31之周圍。藉此，形成有包含1個第1接合部31及位於其周圍之4個第2接合部32之一組接合部群30。於各個壓紋區域E，以形成與連續凸部40同樣地彎曲之行之方式，沿第2方向Y以固定間隔而配置有具有相同構成之接合部群30，於相鄰之接合部群30間，介置有與第2接合部32相同形狀之第3接合部33。第1實施形態中所使用之複合片材10之中央區域M之壓紋區域E上成為與夾著壓紋區域E之兩側之連續凸部40相比高度較低之槽部5(參照圖6)，該槽部5內成為主要通氣路徑。再者，就以更短之距離及時間將悶濕因素引導至吸收體端部而不使悶濕滯留之觀點而言，連續凸部40較佳為以沿大致第2方向延伸之方式形成。於複合片材10之中央區域M，藉由以特定圖案形成之壓紋區域E以上述態樣形成有第1～第3接合部31～33，以及於製造複合片材10時自背面側按壓、或自正面側抽吸第1片材1之相當於連續凸部40之部分等，而於複合片材10之中央區域M形成有如圖5及圖6所示之俯視形狀及剖面形狀之連續凸部40。又，於複合片材10之側部區域S，藉由以圖5所示之態樣形成有接合部3，以及於製造複合片材10時自背面側按壓、或自正面側抽吸第1片材1之相當於第1凸部41或第2凸部42之部分等，而於複合片材10之側部區域S形成有如圖5所示之俯視形狀之向肌膚側突出之第1凸部41及第2凸部42。第1實施形態中所使用之複合片材10於中央區域M之壓紋區域E上，形成有與夾著壓紋區域E之兩側之連續凸部40相比高度較低之槽部5。又，如圖9所示，於側部區域S，在凸部4(第1凸部41、第2凸部42)間形成有呈格子狀連續之凹部5S，於側部區域S，空氣沿格子狀之凹部5S於多個方向流通。藉由於吸收性物品之寬度方向中央部形成使空氣於寬度方向流通之槽部5，另一方面，於側部區域S形成使空氣於多個方向流通之格子狀之凹部5S，可將於中央區域M產生之悶濕因素引導至側部區域S，使其迅速遠離中央部，藉由使其自中央部向其他地方擴散而將其無滯留地引導至吸收體緣部。再者，較佳為於將尿布100如圖1所示呈平面狀鋪展之狀態下，側部區域S之物品寬度方向之整體或一部分被立體褶皺形成用片材15或立體褶皺覆蓋。又，就可使外力均等地施加於連續凸部40之方面而言，連續凸部40較佳為如圖5所示，具有相對於沿尿布100(物品)之長度方向Xa延伸之中央線Lc左右對稱之形狀。外力均等地施加於連續凸部40可防止穿著時之應力等外力單向集中而導致其被壓扁，因此較佳。就使上述一種或兩種以上效果進一步確實地奏效之觀點而言，複合片材之凸部較佳為具有以下構成。形成於中央區域M之連續凸部40之最大高度部分之高度H1(參照圖6)較佳為0.5 mm以上，進而較佳為1.0 mm以上，又，較佳為10 mm以下，進而較佳為5.0 mm以下，又，較佳為0.5 mm以上10 mm以下，進而較佳為1.0 mm以上5.0 mm以下。又，形成於側部區域S之高度最大之凸部即第1凸部41之高度較佳為0.3 mm以上，進而較佳為0.6 mm以上，又，較佳為4.0 mm以下，進而較佳為3.0 mm以下，又，較佳為0.3 mm以上4.0 mm以下，進而較佳為0.6 mm以上3.0 mm以下。關於複合片材，所謂凸部4之高度，如圖6所示，被定義為第2片材2之下表面至第1片材1之上表面之距離。又，高度設定為使用數位顯微鏡(Keyence製造)觀察各凸部剖面而計測出第2片材2之下表面與凸部頂部之最短距離所獲得之值。又，連續凸部40之沿第2方向Y之長度L1(參照圖7)較佳為沿第1方向X之長度L2(參照圖7)之0.9倍以上，進而較佳為5倍以上，又，較佳為50倍以下，進而較佳為25倍以下，又，較佳為0.9倍以上50倍以下，進而較佳為5倍以上25倍以下。又，連續凸部40之彎曲凹部C4之最大深度d(參照圖7)較佳為連續凸部40之沿第1方向X之長度L2(參照圖7)之10%以上，進而較佳為15%以上，又，較佳為90%以下，進而較佳為70%以下，又，較佳為10%以上90%以下，進而較佳為15%以上70%以下。又，於第1方向X上相鄰之連續凸部40彼此間之間距P(同一位置間之距離)較佳為連續凸部40之沿第1方向X之長度L2(參照圖7)之15%以上，進而較佳為100%以上，又，較佳為300%以下，進而較佳為200%以下，又，較佳為15%以上300%以下，進而較佳為100%以上200%以下。又，連續凸部40之沿第2方向Y之長度L1(參照圖7)較佳為尿布100(吸收性物品)之胯下部C之最小寬度L(參照圖1)之20%以上，進而較佳為30%以上，又，較佳為90%以下，進而較佳為50%以下，又，較佳為20%以上90%以下，進而較佳為30%以上50%以下。又，連續凸部40之沿第2方向Y之長度L1(參照圖7)較佳為20 mm以上，進而較佳為50 mm以上，又，較佳為200 mm以下，進而較佳為100 mm以下，又，較佳為20 mm以上200 mm以下，進而較佳為50 mm以上100 mm以下。於製造上述構成之複合片材10時，以與日本專利特開2015-112343號公報中所記載之方法同樣之方式，將帶狀之第1片材1供給至周面互為嚙合形狀之第1輥與第2輥之間，使第1片材1變形為凹凸形狀之後，使第1片材1沿第1輥之周面部自嚙合部分移動，然後以與第1片材1重合之方式供給第2片材2，將兩片材1、2於加熱下夾壓於第1輥之凸部與加熱輥之間使之局部接合。而且，此時，使第1輥及第2輥之凹凸形狀、以及藉由第1輥與加熱輥而形成之接合部之圖案於第1片材之中央部與側部不同。再者，於將第1片材1嚙入至第1輥與第2輥之嚙合部使之變形為凹凸形狀時，較佳為將第1片材向輥內部方向抽吸，而促進第1片材1向凹凸形狀變形。其次，對本發明之第2實施形態進行說明。作為第2實施形態之吸收性物品之拋棄式尿布使用代替上述複合片材10之中央區域M及側部區域S而具有以圖10所示之圖案形成有凸部及接合部之中央區域M以及側部區域S之複合片材，作為構成正面片材之複合片材。於圖10所示之複合片材之中央區域M，亦與複合片材10同樣地，於第1方向X隔開間隔而形成有複數個整體為彎曲部分之連續凸部40。因此，可實現與使用上述複合片材10之情形時相同之效果。以上，基於本發明之較佳之實施形態對本發明進行了說明，但本發明並不受上述各實施形態所限制，而可適當變更。例如，構成壓紋區域E之各個接合部之形狀及配置可適當決定，各個接合部之形狀除長方形或正方形狀以外，亦可採用圓形、橢圓形、長圓形、三角形、四角形、五角形、六角形、星形、心形、三角形等任意形狀。夾著連續凸部40之壓紋區域E較佳為整體上呈與連續凸部40大致相同之形狀彎曲。又，本發明中之複合片材亦可具有如下兩個區域：一個區域形成有具有向物品長度方向Xa之前端1a側凸起而彎曲之彎曲部分之複數條連續凸部，另一個區域形成有具有向物品長度方向Xa之後端1b側凸起而彎曲之彎曲部分之複數條連續凸部。又，本發明之吸收性物品亦可為短褲型(套穿型)之拋棄式尿布，又，亦可為短褲型或普通非短褲型之經期衛生棉，亦可為失禁護墊、衛生護墊等，而代替展開型之拋棄式尿布。關於上述實施形態，本發明進而揭示以下吸收性物品。＜1＞一種吸收性物品，其具備包含複合片材之正面片材、背面片材及配置於該等兩片材間之吸收體，且上述複合片材具有沿物品之長度方向之第1方向及沿物品之寬度方向之第2方向，並且經積層之第1片材及第2片材於複數個接合部相互接合，且第1片材於上述接合部以外之部位向遠離第2片材之方向突出，而形成有向穿著者之肌膚側突出之凸部，於上述複合片材，作為上述凸部，於第1方向隔開間隔而形成有複數條沿第2方向延伸之連續凸部，複數條上述連續凸部具有彎曲部分，該彎曲部分於俯視上述複合片材時，向物品之長度方向之前端側或後端側凸起而彎曲。＜2＞如上述＜1＞之吸收性物品，其中上述連續凸部之各者僅具有一個上述彎曲部分。＜3＞如上述＜1＞或＜2＞之吸收性物品，其中上述連續凸部各自之整體向物品之長度方向之前端側或後端側凸起而彎曲。＜4＞如上述＜1＞至＜3＞中任一項之吸收性物品，其中上述複數條上述連續凸部之上述彎曲部分之凸起之朝向一致。＜5＞如上述＜1＞至＜4＞中任一項之吸收性物品，其中上述吸收性物品具有穿著時配置於穿著者之腹側之腹側部、穿著時配置於穿著者之背側之背側部、及位於該腹側部與該背側部之間之胯下部，且複數條上述連續凸部至少形成於胯下部。＜6＞如上述＜1＞至＜5＞中任一項之吸收性物品，其中上述連續凸部具有相對於沿物品之長度方向延伸之中央線左右對稱之形狀。＜7＞如上述＜1＞至＜6＞中任一項之吸收性物品，其具有以互不相同之圖案形成有上述凸部之中央區域及位於該中央區域之兩側之一對側部區域，且形成於上述側部區域之凸部(第1凸部及第2凸部)係以與形成於上述中央區域之凸部即連續凸部不同之圖案所形成。＜8＞如上述＜1＞至＜7＞中任一項之吸收性物品，其具有以互不相同之圖案形成有上述凸部之中央區域及位於該中央區域之兩側之一對側部區域，且上述複合片材之上述凸部之配置及形態於上述中央區域與上述一對側部區域不同。＜9＞如上述＜1＞至＜8＞中任一項之吸收性物品，其具有形成有複數條上述連續凸部之中央區域、及隔著該中央區域而位於其兩側之側部區域，且於該側部區域，呈散點狀形成有上述凸部，於該凸部彼此間，形成有呈格子狀連續之凹部。＜10＞如上述＜1＞至＜9＞中任一項之吸收性物品，其中具有以互不相同之圖案形成之上述凸部之中央區域及位於其兩側之一對側部區域係以跨及上述吸收性物品之長度方向之全長之方式形成。＜11＞如上述＜1＞至＜10＞中任一項之吸收性物品，其具有於俯視上述複合片材時向物品長度方向之前端側凸起而彎曲之彎曲部分，上述物品長度方向係上述吸收性物品之長度方向，上述前端側係穿著時配置於穿著者之腹側之側。＜12＞如上述＜1＞至＜11＞中任一項之吸收性物品，其中上述吸收性物品具有穿著時配置於穿著者之腹側之腹側部、穿著時配置於穿著者之背側之背側部、及位於該腹側部與該背側部之間之胯下部，且複數條上述連續凸部至少形成於上述胯下部之寬度方向中央部。＜13＞如上述＜1＞至＜12＞中任一項之吸收性物品，其中上述吸收性物品具有穿著時配置於穿著者之腹側之腹側部、穿著時配置於穿著者之背側之背側部、及位於該腹側部與該背側部之間之胯下部，且包含具有上述彎曲部分之複數條上述連續凸部之區域較佳為自上述胯下部跨及至上述腹側部及上述背側部中之任一者或兩者而形成。＜14＞如上述＜1＞至＜13＞中任一項之吸收性物品，其中上述吸收性物品具有吸收體，且包含具有上述彎曲部分之複數條上述連續凸部之區域進而較佳為跨及上述吸收體之全長，進而以跨及吸收性物品之全長為佳。＜15＞如上述＜1＞至＜14＞中任一項之吸收性物品，其具有以互不相同之圖案形成有上述凸部之中央區域及位於該中央區域之兩側之一對側部區域，且於上述複合片材之上述中央區域之上述連續凸部彼此間，形成有與該連續凸部同樣地彎曲之壓紋區域，於上述第1方向X，上述第1片材與上述第2片材之間未接合之上述連續凸部和上述壓紋區域交替配置。＜16＞如上述＜1＞至＜15＞中任一項之吸收性物品，其具有以互不相同之圖案形成有上述凸部之中央區域及位於該中央區域之兩側之一對側部區域，且於上述複合片材之上述中央區域之上述連續凸部彼此間，形成有與該連續凸部同樣地彎曲之壓紋區域，上述複合片材之上述中央區域之上述壓紋區域上成為與夾著該壓紋區域之兩側之上述連續凸部相比高度較低之槽部。＜17＞如上述＜1＞至＜16＞中任一項之吸收性物品，其具有以互不相同之圖案形成有上述凸部之中央區域及位於該中央區域之兩側之一對側部區域，且於上述複合片材之上述中央區域之上述連續凸部彼此間，形成有與該連續凸部同樣地彎曲之壓紋區域，夾著上述連續凸部之上述壓紋區域較佳為整體上呈與上述連續凸部大致相同之形狀彎曲。＜18＞如上述＜1＞至＜17＞中任一項之吸收性物品，其具有以互不相同之圖案形成有上述凸部之中央區域及位於該中央區域之兩側之一對側部區域，且於上述中央區域及上述側部區域之上述接合部之各者，成為上述第1片材及上述第2片材中之一者或兩者之構成纖維之構成樹脂經熔融固化之狀態，又，於上述接合部之各者，上述第1片材及上述第2片材與其他部分(接合部以外之部分)相比均高密度化。＜19＞如上述＜1＞至＜18＞中任一項之吸收性物品，其中作為將不織布用作構成上述第1片材及上述第2片材之片材材料之情形時之不織布，用作構成上述第1片材及上述第2片材之片材材料之不織布之基重較佳為10 g/m² 以上，更佳為15 g/m² 以上，又，較佳為40 g/m² 以下，更佳為35 g/m² 以下。＜20＞如上述＜1＞至＜19＞中任一項之吸收性物品，其具有以互不相同之圖案形成有上述凸部之中央區域及位於該中央區域之兩側之一對側部區域，且形成於上述中央區域之上述連續凸部之最大高度部分之高度較佳為0.5 mm以上，進而較佳為1 mm以上，又，較佳為10 mm以下，進而較佳為5 mm以下。＜21＞如上述＜1＞至＜20＞中任一項之吸收性物品，其具有以互不相同之圖案形成有上述凸部之中央區域及位於該中央區域之兩側之一對側部區域，且形成於上述側部區域之高度最大之凸部即第1凸部之高度較佳為0.3 mm以上，進而較佳為0.6 mm以上，又，較佳為4 mm以下，進而較佳為3 mm以下。＜22＞如上述＜1＞至＜21＞中任一項之吸收性物品，其中上述連續凸部之沿上述第2方向之長度較佳為沿上述第1方向之長度之0.9倍以上，進而較佳為5倍以上，又，較佳為50倍以下，進而較佳為25倍以下。＜23＞如上述＜1＞至＜22＞中任一項之吸收性物品，其中上述連續凸部之呈凹狀彎曲之彎曲凹部之最大深度較佳為上述連續凸部之沿上述第1方向之長度的10%以上，進而較佳為15%以上，又，較佳為90%以下，進而較佳為70%以下。＜24＞如上述＜1＞至＜23＞中任一項之吸收性物品，其中於上述第1方向上相鄰之上述連續凸部彼此間之間距P(同一位置間之距離)較佳為上述連續凸部之沿上述第1方向之長度的15%以上，進而較佳為100%以上，又，較佳為300%以下，進而較佳為200%以下。＜25＞如上述＜1＞至＜24＞中任一項之吸收性物品，其中上述吸收性物品具有穿著時配置於穿著者之腹側之腹側部、穿著時配置於穿著者之背側之背側部、及位於該腹側部與該背側部之間之胯下部，且上述連續凸部之沿上述第2方向之長度L1較佳為上述吸收性物品之上述胯下部之最小寬度的20%以上，進而較佳為30%以上，又，較佳為90%以下，進而較佳為50%以下。 [產業上之可利用性] 根據本發明之吸收性物品，連續凸部之頂部柔軟，肌膚側面之肌膚觸感較佳，此外，凸部不易被壓扁，凸部間之通氣路徑穩定地得到維持，透氣性及防悶濕性優異。The present invention relates to an absorbent article that can eliminate the above-mentioned shortcomings of the prior art. Hereinafter, based on the preferred embodiments of the present invention, the present invention will be described with reference to the drawings. 1 and 2 show the basic structure of a disposable diaper 100 (hereinafter also referred to as diaper 100) as an embodiment of the absorbent article of the present invention. As shown in FIGS. 1 and 2, the diaper 100 includes a liquid-permeable front sheet 12, a liquid-impermeable back sheet 13, and an absorber 14 arranged between the two sheets 12 and 13. Regarding the back sheet 13, the so-called liquid impermeability also includes the concept of impermeability to liquids. The back sheet 13 includes a water-repellent sheet and the like in addition to the case where no liquid passes through at all. The diaper 100 has: the article length direction Xa, which is the same direction as the wearer's front and back direction when worn; and the article width direction Ya, which is the same as the article length when the diaper 100 is spread in a flat shape as shown in FIG. The direction Xa is orthogonal. In addition, the diaper 100 has, in the article length direction Xa, an ventral part A arranged on the wearer's ventral side when worn, a dorsal part B arranged on the wearer's back when worn, and a ventral part A and a dorsal part. C between the lower part of the crotch. The diaper 100 is an expanded disposable diaper. The side edges of the back side B are provided with hook and loop fasteners 17 and the outer surface of the ventral side A is provided with a fastening area 18 for fixing the hook and loop fasteners 17. The absorber 14 of the diaper 100 is provided with the absorbent core 14a and the core-covering material 14b which wraps this absorbent core 14a. The absorbent core 14a may include, for example, a fiber accumulation of liquid-absorbent fibers such as pulp fibers, or a mixed fiber accumulation of liquid-absorbent fibers and a water-absorbent polymer. Examples of liquid-absorbing fibers include cellulose-based hydrophilic fibers such as pulp fibers, rayon fibers, cotton fibers, and cellulose acetate. In addition to cellulose-based hydrophilic fibers, a fiber containing synthetic resins such as polyolefin, polyester, and polyamide may be hydrophilized by a surfactant or the like. As the core covering material 14b, for example, toilet paper or a water-permeable non-woven fabric can be used. The core covering material 14b may wrap the entire absorbent core 14a with one sheet, or may wrap the absorbent core 14a by combining two or more sheets. As the back sheet 13, a liquid-impermeable or water-repellent resin film, a laminate sheet of a resin film and a non-woven fabric, etc. can be used. On both sides of the length direction Xa of the diaper 100, a sheet 15 for forming three-dimensional wrinkles with elastic members 15a is arranged. By the contraction of the elastic members 15a, the lower part C of the crotch in the wearing state is formed toward the wearer Three-dimensional folds on the side of the skin. In addition, the lower part C of the crotch is arranged around the leg circumference, and the leg elastic member 16 is arranged in an extended state, and by its contraction, the lower part C of the crotch in the wearing state forms the leg circumference of the wearer. Leg folds with improved conformability. The front sheet 12 of the disposable diaper 100 of the first embodiment includes the composite sheet 10 shown in FIG. 3. As shown in FIG. 3, the composite sheet 10 has a first direction X along the longitudinal direction (article length direction) Xa of the diaper 100 and a second direction Y along the width direction (article width direction) Ya of the diaper 100. In addition, as shown in FIG. 3, the composite sheet 10 has a central area M in which protrusions 4 are formed in mutually different patterns, and a pair of side areas S and S located on both sides of the central area M. The central area M is located at the center of the width direction (article width direction) Ya of the diaper 100, and a pair of side areas S and S are formed on the outer side of both side edges of the central area M along the second direction Y. 4 is an enlarged perspective view of a part of the composite sheet 10, and FIG. 5 is an enlarged plan view of a part of the composite sheet 10. As shown in FIG. In FIGS. 4 and 5, a part of the composite sheet 10 arranged on the lower part C of the crotch is shown. In addition, the side region S is formed in a left-right symmetrical position with respect to the center line Lc along the longitudinal direction Xa of the diaper 100, and each side region S is formed with unevenness in the same pattern. As shown in Figures 5 and 6, the composite sheet 10 in the central area M and the side area S is the first sheet 1 and the second sheet 2 laminated by embossing to form a plurality of parts. There are two joints 3, and the laminated first sheet 1 and the second sheet 2 are joined to each other in a plurality of joints 3. Moreover, in any of the central area M and the side area S, the first sheet 1 protrudes away from the second sheet 2 at a location other than the joint 3, and forms a skin facing the wearer. Side protrusion of the convex part 4. The composite sheet 10 has a substantially flat surface on the second sheet 2 side in any of the central region M and the side regions S, and has large undulations on the first sheet 1 side. The first sheet 1 and the second sheet 2 are made of sheet materials. As the sheet material, for example, fiber sheets such as non-woven fabrics, woven fabrics, and knitted fabrics, or films, etc. can be used. From the viewpoint of skin touch and the like, fiber sheets are preferably used, and non-woven fabrics are particularly preferred. The types of sheet materials constituting the first sheet 1 and the second sheet 2 may be the same or different. As the non-woven fabric when the non-woven fabric is used as the sheet material constituting the first sheet 1 and the second sheet 2, for example, hot-air non-woven fabric, spun-bonded non-woven fabric, spunlace non-woven fabric, melt-blown non-woven fabric, resin-bonded non-woven fabric, needle Thorn non-woven fabrics, etc. A laminate obtained by combining two or more kinds of these nonwoven fabrics, or a laminate obtained by combining these nonwoven fabrics with a film or the like can also be used. Among them, it is preferable to use a hot-air nonwoven fabric or a spunbonded nonwoven fabric. The basis weight of the non-woven fabric used as the sheet material constituting the first sheet 1 and the second sheet 2 is preferably 10 g/m ² or more, more preferably 15 g/m ² or more, and more preferably 40 g /m ² or less, more preferably 35 g/m ² or less. The basis weight of the nonwoven fabric is preferably 10 g/m ² or more and 40 g/m ² or less, and more preferably 15 g/m ² or more and 35 g/m ² or less. As the fibers constituting the nonwoven fabric, fibers containing various thermoplastic resins can be used. Examples of thermoplastic resins include polyolefins such as polyethylene or polypropylene, polyesters such as polyethylene terephthalate, polyamides such as nylon 6 or nylon 66, polyacrylic acid, polyalkyl methacrylate, and polychlorine. Ethylene, polyvinylidene chloride, etc. These resins can be used individually by 1 type, or as a blend of 2 or more types. In addition, it can be used in the form of a composite fiber such as a core-sheath type or a side-by-side type. In the central area M of the composite sheet 10, as shown in FIGS. 4-6, a plurality of continuous convex portions 40 extending continuously in the second direction Y are formed at a fixed distance in the first direction X. In addition, each of the plurality of continuous convex portions 40 has a curved portion that is convex and curved toward the longitudinal direction of the diaper 100, that is, the front end 1a side of the article longitudinal direction Xa when the composite sheet 10 is viewed from above. The front end 1a side refers to the side disposed on the wearer's ventral side when worn, and the rear end 1b side refers to the side facing the wearer's back side when worn. For absorbent articles without a distinction between front and rear, one of the two ends of the article length direction Xa is set as the front side, and the other is set as the back side. The continuous convex portion 40 in the present invention may also have a curved portion that is convex and curved toward the rear end 1b side of the article longitudinal direction Xa. Here, the expression of the so-called "has a curved part" includes two cases, one is the case where there is a curved part between the two ends 4s and 4s of the continuous convex part 40 in the second direction Y as shown in FIG. 7, and the other As shown in FIG. 8(a), there are a plurality of curved portions R between the two ends 4s and 4s of the continuous convex portion 40 in the second direction Y. In addition, the expression "having a curved portion" also includes the case where the entire continuous convex portion 40 is the curved portion R. The continuous convex portion 40 of the composite sheet 10 of this embodiment has a curved portion R between the two end portions 4s and 4s. In addition, with regard to the continuous convex portions 40, the entirety of each is a curved portion R, and the entirety of each is convex and curved toward the front end 1a side (or the rear end 1b side) of the article longitudinal direction Xa. In addition, in the composite sheet 10 of this embodiment, as shown in FIG. 3, all the curved portions of the continuous convex portions 40 have the same convex directions. In the example shown in FIG. 8(b) and FIG. 8(c), the direction of the protrusions of the curved portions of the plurality of continuous protrusions 40 is also the same. On one of the pair of side regions S and S of the composite sheet 10, the first sheet 1 is formed as a convex portion 4 formed by protruding away from the second sheet 2 at a location other than the joining portion 3, as shown in FIG. 5 , A first convex portion 41 and a second convex portion 42 are formed. The convex portions 4 (the first convex portion 41 and the second convex portion 42) formed in the side region S are formed in a scatter shape in a plan view as shown in FIG. 5, and are formed along the first direction X and the second direction Y The state of being scattered. The convex portions 4 (the first convex portion 41 and the second convex portion 42) formed in the side area S are formed in a pattern different from the continuous convex portion 40 that is the convex portion formed in the central area M. The manifestations of the different patterns of the convex portions include any one of a situation where only the arrangement of the convex portion is different, a situation where the shape of the convex portion is different, and a situation where both of them are different. The different configurations of the convex parts also include the different distances between the convex parts. In addition, the aspect in which the shape of the convex portion is different also includes the situation in which the shape of the convex portion is different in plan view. In the composite sheet 10 of the present embodiment, the arrangement and form of the convex portions are different in the central region M and the pair of side regions S and S. In addition, each of the joining parts 3 in the central area M and the side area S becomes a state in which the constituent resins of the constituent fibers of one or both of the first sheet 1 and the second sheet 2 are melted and solidified, In addition, in each of the joining parts 3, the first sheet 1 and the second sheet 2 are denser than the other parts (parts other than the joining part). That is, the joint 3 of the composite sheet 10 is a heat fusion part formed by heating and pressing the first sheet 1 and the second sheet 2 integrally, and is composed of one sheet or two sheets of constituent fibers The melting and subsequent solidification of the resin bond the two sheets to each other. In each of the joining parts 3, it is preferable that both the first sheet 1 and the second sheet 2 are melted and solidified. In addition, in either of the central area M and the side area S, the first sheet 1 and the second sheet 2 may be joined by a bonding means other than heat fusion, such as an adhesive such as a hot melt adhesive. The junction 3 is formed. In the diaper 100 of the first embodiment, the composite sheet 10 constituting the front sheet 12 has a plurality of continuous convex portions 40 extending in the second direction Y, so the contact area with the wearer's skin is reduced, and the composite sheet 10 The breathability between the skin is ensured. Furthermore, the continuous convex portions 40 have curved portions R, and therefore, the continuous convex portions 40 are less likely to be crushed compared to the case where the curved portions are not provided. Therefore, even when wearing pressure is applied during wearing, the continuous convex portion 40 is not easily crushed, and the ventilation path between the continuous convex portions 40 is stably maintained. Therefore, the diaper 100 is breathable and anti-moisturizing. Excellent sex. In addition, since the continuous convex portion 40 is bent so that the continuous convex portion 40 is not easily crushed, the flexibility of the top of the continuous convex portion 40 formed by the first sheet 1 that is not joined to the second sheet 2 Excellent, the skin feels good. Furthermore, each of the continuous convex portions 40 of the composite sheet 10 in the first embodiment has only one curved portion R, so for example, as shown in FIG. 8(a), the continuous convex portion 40 has a plurality of curved portions R Compared with time, it has the advantage that the continuous convex portion 40 has better followability to the movement of the wearer's skin along the length direction, and it is not easy to rub the wearer's skin. In addition, the entirety of each of the continuous convex portions 40 in the present embodiment is convex and curved toward the front end 1a side of the article length direction Xa, so it has the advantage of being easy to fit and conform to the wearer's body. This effect is also effective when curved toward the rear end 1b side of the article length direction Xa. However, in terms of easy conformity to the shape of the swollen abdomen and better conformability, it is preferable to use this embodiment. Like the diaper 100 of the form, it is convex and curved toward the front end 1a side of the article longitudinal direction Xa. In addition, the same direction of the protrusions of the curved portions of the plurality of continuous protrusions 40 can make the curved portions of the adjacent continuous protrusions 40 approach close, so that the entire curved portion can easily function as a unit, resist stress, and disperse the force. It is preferable from the viewpoint of preventing the difficulty of squashing of each continuous convex portion from being reduced. In the diaper 100 of the first embodiment, as shown in FIG. 3, the central area M of the convex portion 4 formed in mutually different patterns and the side areas S and S on both sides thereof span the diaper 100 However, in the absorbent article of the present invention, a region including a plurality of continuous convex portions 40 having a curved portion R may be formed only at any position in the longitudinal direction of the article, for example, only It is formed in the lower part of the crotch C, only in the abdominal part A, or only in the dorsal part B. A plurality of continuous protrusions 40 with curved portions R are formed at least on the lower part C of the crotch in the length direction Xa of the diaper 100 so that the continuous protrusion area that is not easily crushed can be located near the excretion point, so that it can be formed in the area The ventilation path (continuous recessed portion) functions effectively and is preferable from the viewpoint of removing the stuffiness factor. In addition, from the viewpoint of making the continuous convex portion region that is not easily crushed closer to the excretion point, the plurality of continuous convex portions 40 having the curved portion R are preferably formed at least at the center portion in the width direction of the lower part of the crotch. The region including a plurality of continuous convex portions 40 having a curved portion R is further preferably formed from the lower part of the crotch C to either or both of the ventral portion A and the dorsal portion B, or the absorbent body 14 It is better to span the full length of the diaper 100. As shown in FIG. 5, between the continuous protrusions 40 in the central area M of the composite sheet 10, an embossed area E that is curved in the same manner as the continuous protrusion 40 is formed. In other words, in the first direction X, the continuous convex portions 40 that are not joined between the first sheet 1 and the second sheet 2 and the embossed areas E are alternately arranged. The first joining part 31 and the second joining part 32 are formed in the embossing area E as the joining part 3 formed by partially joining the laminated first sheet 1 and the second sheet 2 by embossing. The first joint 31 has a rectangular shape that is long in the first direction X, and four second joints 32 in a square shape with one side having the same length as the short side of the rectangle of the first joint 31 The four corners of the first joining part 31 are arranged close to each other around the first joining part 31 in a state where the respective corners are opposed to the four corners of the first joining part 31. Thereby, a bonding part group 30 including one first bonding part 31 and four second bonding parts 32 located around it is formed. In each embossed area E, a group of joints 30 having the same configuration are arranged at regular intervals along the second direction Y in a manner that is curved in the same manner as the continuous convex section 40, and adjacent joint groups 30 are arranged. In between, a third bonding portion 33 having the same shape as the second bonding portion 32 is interposed. The embossed area E of the central area M of the composite sheet 10 used in the first embodiment becomes a groove 5 having a lower height than the continuous convex portions 40 on both sides of the embossed area E (refer to FIG. 6) The inside of the groove 5 becomes the main ventilation path. Furthermore, from the viewpoint of guiding the stuffiness factor to the end of the absorber in a shorter distance and time without stagnation of the stuffiness, the continuous convex portion 40 is preferably formed to extend in the substantially second direction. In the central area M of the composite sheet 10, the first to third joining parts 31 to 33 are formed in the above-mentioned manner by the embossed area E formed in a specific pattern, and the composite sheet 10 is pressed from the back side when the composite sheet 10 is manufactured. , Or suck the portion of the first sheet 1 corresponding to the continuous convex portion 40 from the front side, and the central area M of the composite sheet 10 is formed with a continuous plan and cross-sectional shape as shown in FIGS. 5 and 6 Convex 40. In addition, in the side area S of the composite sheet 10, the junction 3 is formed in the manner shown in FIG. 5, and the first is pressed from the back side when the composite sheet 10 is manufactured, or the first side is sucked from the front side. The part of the sheet 1 corresponding to the first protrusion 41 or the second protrusion 42 and the like, and the side area S of the composite sheet 10 is formed with a first protrusion protruding toward the skin in a plan view shape as shown in FIG. 5 Section 41 and second convex section 42. The composite sheet 10 used in the first embodiment has grooves 5 formed in the embossed area E of the central area M with a lower height than the continuous protrusions 40 on both sides of the embossed area E. In addition, as shown in FIG. 9, in the side area S, the concave portions 5S continuous in a lattice shape are formed between the convex portions 4 (the first convex portion 41 and the second convex portion 42). In the side area S, the air flows along the convex portion 4 (the first convex portion 41 and the second convex portion 42). The grid-shaped recesses 5S circulate in multiple directions. Since the central part of the absorbent article in the width direction is formed with grooves 5 that allow air to circulate in the width direction, on the other hand, the side regions S are formed with grid-like recesses 5S that allow air to circulate in multiple directions. The dampness factor generated in the area M is guided to the side area S, which is quickly moved away from the central portion, and is guided to the edge of the absorber without stagnation by spreading it from the central portion to other places. Furthermore, it is preferable that the whole or part of the width direction of the article in the side region S is covered by the three-dimensional wrinkle forming sheet 15 or the three-dimensional wrinkle in the state where the diaper 100 is spread in a planar shape as shown in FIG. 1. In addition, in terms of allowing the external force to be applied equally to the continuous convex portion 40, the continuous convex portion 40 preferably has a central line Lc extending along the longitudinal direction Xa of the diaper 100 (article) as shown in FIG. 5 Symmetrical shape. The uniform application of external force to the continuous convex portion 40 can prevent the unidirectional concentration of external force such as stress during wearing and cause it to be crushed, so it is preferable. From the viewpoint of making the above-mentioned one or two or more effects more surely effective, the convex portion of the composite sheet preferably has the following configuration. The height H1 (refer to FIG. 6) of the maximum height portion of the continuous convex portion 40 formed in the central region M is preferably 0.5 mm or more, more preferably 1.0 mm or more, more preferably 10 mm or less, and more preferably 5.0 mm or less, more preferably 0.5 mm or more and 10 mm or less, and more preferably 1.0 mm or more and 5.0 mm or less. In addition, the height of the first protrusion 41, which is the largest protrusion formed in the side region S, is preferably 0.3 mm or more, more preferably 0.6 mm or more, more preferably 4.0 mm or less, and still more preferably 3.0 mm or less, more preferably 0.3 mm or more and 4.0 mm or less, more preferably 0.6 mm or more and 3.0 mm or less. Regarding the composite sheet, the height of the convex portion 4 is defined as the distance from the lower surface of the second sheet 2 to the upper surface of the first sheet 1 as shown in FIG. 6. In addition, the height is set to a value obtained by observing the cross-section of each convex portion using a digital microscope (manufactured by Keyence) and measuring the shortest distance between the bottom surface of the second sheet 2 and the top of the convex portion. In addition, the length L1 of the continuous convex portion 40 along the second direction Y (refer to FIG. 7) is preferably 0.9 times or more of the length L2 (refer to FIG. 7) in the first direction X, and more preferably 5 times or more, and , Preferably 50 times or less, more preferably 25 times or less, more preferably 0.9 times or more and 50 times or less, and more preferably 5 times or more and 25 times or less. In addition, the maximum depth d (refer to FIG. 7) of the curved concave portion C4 of the continuous convex portion 40 is preferably 10% or more of the length L2 (refer to FIG. 7) of the continuous convex portion 40 along the first direction X, and more preferably 15 % Or more, more preferably 90% or less, more preferably 70% or less, more preferably 10% or more and 90% or less, and still more preferably 15% or more and 70% or less. In addition, the distance P (the distance between the same positions) between the continuous convex portions 40 adjacent to each other in the first direction X is preferably 15 of the length L2 of the continuous convex portion 40 along the first direction X (refer to FIG. 7) % Or more, more preferably 100% or more, more preferably 300% or less, more preferably 200% or less, more preferably 15% or more and 300% or less, and more preferably 100% or more and 200% or less . In addition, the length L1 of the continuous convex portion 40 along the second direction Y (refer to FIG. 7) is preferably 20% or more of the minimum width L (refer to FIG. 1) of the lower part C of the crotch of the diaper 100 (absorbent article). It is preferably 30% or more, more preferably 90% or less, more preferably 50% or less, more preferably 20% or more and 90% or less, and more preferably 30% or more and 50% or less. In addition, the length L1 of the continuous convex portion 40 along the second direction Y (refer to FIG. 7) is preferably 20 mm or more, more preferably 50 mm or more, more preferably 200 mm or less, and more preferably 100 mm Hereinafter, it is more preferably 20 mm or more and 200 mm or less, and more preferably 50 mm or more and 100 mm or less. When manufacturing the composite sheet 10 of the above-mentioned structure, in the same manner as the method described in Japanese Patent Laid-Open No. 2015-112343, the band-shaped first sheet 1 is supplied to the first sheet 1 whose peripheral surfaces are in meshing shapes with each other. Between the first roller and the second roller, the first sheet 1 is deformed into a concave-convex shape, and then the first sheet 1 is moved along the peripheral surface of the first roller from the meshing part, and then overlaps the first sheet 1 The second sheet 2 is fed, and the two sheets 1, 2 are sandwiched between the convex portion of the first roller and the heating roller under heating to be partially joined. In addition, at this time, the uneven shape of the first roller and the second roller, and the pattern of the joint formed by the first roller and the heating roller are different in the central part and the side part of the first sheet. Furthermore, when the first sheet 1 is bitten into the meshing portion of the first roller and the second roller to deform it into a concave-convex shape, it is preferable to suck the first sheet in the inner direction of the roller to promote the first The sheet 1 is deformed to the uneven shape. Next, the second embodiment of the present invention will be described. As the disposable diaper of the absorbent article of the second embodiment, instead of the central area M and the side area S of the above-mentioned composite sheet 10, the central area M having the convex part and the joint part formed in the pattern shown in FIG. 10 and The composite sheet of the side area S is used as the composite sheet constituting the front sheet. In the central region M of the composite sheet shown in FIG. 10, similarly to the composite sheet 10, a plurality of continuous convex portions 40 that are entirely curved portions are formed at intervals in the first direction X. Therefore, the same effect as in the case of using the composite sheet 10 described above can be achieved. As mentioned above, the present invention has been described based on the preferred embodiments of the present invention, but the present invention is not limited to the above-mentioned embodiments, and can be changed as appropriate. For example, the shape and arrangement of each joint part constituting the embossed area E can be appropriately determined. The shape of each joint part may be round, oval, oblong, triangle, square, pentagon, pentagon, etc., in addition to rectangular or square shapes. Any shape such as hexagon, star, heart, triangle, etc. The embossing area E sandwiching the continuous convex portion 40 is preferably curved in substantially the same shape as the continuous convex portion 40 as a whole. In addition, the composite sheet of the present invention may also have the following two regions: one region is formed with a plurality of continuous convex portions having a curved portion that is convex and curved toward the front end 1a side of the article longitudinal direction Xa, and the other region is formed with A plurality of continuous convex portions having a curved portion convex and curved toward the rear end 1b side of the article longitudinal direction Xa. In addition, the absorbent article of the present invention may also be a shorts type (pull-on type) disposable diaper, a shorts type or a normal non-pants type menstrual sanitary napkin, or an incontinence pad or a sanitary pad Etc., instead of expanding disposable diapers. Regarding the above-mentioned embodiment, the present invention further discloses the following absorbent articles. <1> An absorbent article comprising a front sheet including a composite sheet, a back sheet, and an absorber arranged between the two sheets, and the composite sheet has a first direction along the longitudinal direction of the article And the second direction along the width direction of the article, and the laminated first sheet and second sheet are joined to each other at a plurality of joints, and the first sheet is away from the second sheet at a location other than the joints Protruding in the direction of the wearer, and protruding portions protruding to the wearer’s skin are formed. In the composite sheet, as the protruding portions, a plurality of continuous protruding portions extending in the second direction are formed at intervals in the first direction A plurality of the continuous convex portions has a curved portion that is convex and curved toward the front end side or the rear end side in the longitudinal direction of the article when the composite sheet is viewed from above. <2> The absorbent article according to the above <1>, wherein each of the continuous convex portions has only one curved portion. <3> The absorbent article of the above-mentioned <1> or <2>, wherein the entirety of each of the continuous protrusions is curved toward the front end side or the rear end side in the longitudinal direction of the article. <4> The absorbent article according to any one of the above <1> to <3>, wherein the projections of the curved portions of the plurality of continuous projections have the same orientation. <5> The absorbent article according to any one of the above <1> to <4>, wherein the absorbent article has a ventral part that is placed on the wearer's ventral side when worn, and placed on the wearer's back side when worn The dorsal part and the lower part of the crotch between the ventral part and the dorsal part, and a plurality of the continuous convex parts are formed at least on the lower part of the crotch. <6> The absorbent article according to any one of the above <1> to <5>, wherein the continuous convex portion has a symmetrical shape with respect to a center line extending in the longitudinal direction of the article. <7> The absorbent article of any one of the above <1> to <6>, which has a central area where the above-mentioned protrusions are formed in different patterns and a pair of side parts located on both sides of the central area Area, and the convex portions (first convex portion and second convex portion) formed in the side area are formed in a pattern different from the continuous convex portion that is the convex portion formed in the central area. <8> The absorbent article of any one of the above <1> to <7>, which has a central area where the above-mentioned protrusions are formed in different patterns and a pair of side parts located on both sides of the central area Region, and the arrangement and morphology of the protrusions of the composite sheet are different in the central region and the pair of side regions. <9> The absorbent article of any one of the above <1> to <8>, which has a central area where a plurality of the continuous convex portions are formed, and side areas located on both sides of the central area across the central area And in the side area, the above-mentioned convex parts are formed in a scattered dot shape, and between the convex parts, there are formed continuous concave parts in a lattice shape. <10> The absorbent article according to any one of the above <1> to <9>, in which the central region of the above-mentioned protrusions formed in mutually different patterns and a pair of side regions located on both sides thereof are It is formed so as to span the entire length of the above-mentioned absorbent article in the longitudinal direction. <11> The absorbent article according to any one of the above <1> to <10>, which has a curved portion that bulges toward the front end side in the longitudinal direction of the article when viewed from the top of the composite sheet, and the longitudinal direction of the article is In the longitudinal direction of the absorbent article, the front end side is arranged on the abdominal side of the wearer when worn. <12> The absorbent article of any one of the above <1> to <11>, wherein the absorbent article has an ventral part that is placed on the wearer's ventral side when worn, and is placed on the wearer's back side when worn The dorsal part and the lower part of the crotch between the abdominal part and the dorsal part, and a plurality of the continuous convex parts are formed at least in the widthwise central part of the lower part of the crotch. <13> The absorbent article according to any one of the above <1> to <12>, wherein the absorbent article has an ventral part that is placed on the wearer's ventral side when worn, and placed on the wearer's back side when worn The dorsal part, and the lower part of the crotch between the ventral part and the dorsal part, and the area including a plurality of the continuous convex parts having the above-mentioned curved part preferably spans from the lower part of the crotch to the ventral part And any one or both of the above-mentioned back side part. <14> The absorbent article according to any one of the above <1> to <13>, wherein the absorbent article has an absorbent body, and a region including a plurality of the continuous convex portions having the curved portion is more preferably spanning And the full length of the above-mentioned absorbent body, preferably spanning the full length of the absorbent article. <15> The absorbent article of any one of the above <1> to <14>, which has a central area where the above-mentioned protrusions are formed in different patterns and a pair of side parts located on both sides of the central area Area, and between the continuous protrusions in the central area of the composite sheet, an embossed area that is curved in the same manner as the continuous protrusion is formed. In the first direction X, the first sheet and the first The continuous convex portions and the embossed regions that are not joined between the two sheets are alternately arranged. <16> The absorbent article of any one of the above <1> to <15>, which has a central area where the above-mentioned protrusions are formed in different patterns and a pair of side parts located on both sides of the central area Area, and between the continuous protrusions in the central area of the composite sheet, an embossed area that is curved in the same manner as the continuous protrusion is formed, and the embossed area in the central area of the composite sheet becomes A groove having a lower height than the continuous protrusions on both sides of the embossed area. <17> The absorbent article of any one of the above <1> to <16>, which has a central area where the above-mentioned protrusions are formed in different patterns and a pair of side parts located on both sides of the central area Area, and between the continuous protrusions in the central area of the composite sheet, there is formed an embossed area that is curved in the same manner as the continuous protrusion, and the embossed area sandwiching the continuous protrusion is preferably a whole The upper part is curved in substantially the same shape as the continuous convex part described above. <18> The absorbent article according to any one of the above <1> to <17>, which has a central area in which the above-mentioned protrusions are formed in different patterns and a pair of side parts located on both sides of the central area Region, and each of the joints in the central region and the side region becomes a state where the constituent resin of the constituent fiber of one or both of the first sheet and the second sheet is melted and solidified In addition, in each of the above-mentioned joining parts, the above-mentioned first sheet and the above-mentioned second sheet are both denser than other parts (parts other than the joining part). <19> The absorbent article of any one of the above <1> to <18>, which is used as the non-woven fabric when the non-woven fabric is used as the sheet material constituting the above-mentioned first sheet and the above-mentioned second sheet. The basis weight of the non-woven fabric used as the sheet material constituting the first sheet and the second sheet is preferably 10 g/m ² or more, more preferably 15 g/m ² or more, and more preferably 40 g/m 2 m ² or less, more preferably 35 g/m ² or less. <20> The absorbent article of any one of the above <1> to <19>, which has a central area where the above-mentioned protrusions are formed in different patterns and a pair of side parts located on both sides of the central area Area, and the height of the maximum height portion of the continuous convex portion formed in the central area is preferably 0.5 mm or more, more preferably 1 mm or more, more preferably 10 mm or less, and more preferably 5 mm or less . <21> The absorbent article of any one of the above <1> to <20>, which has a central area where the above-mentioned protrusions are formed in different patterns and a pair of side parts located on both sides of the central area Area, and the height of the largest protrusion formed in the side area, that is, the height of the first protrusion is preferably 0.3 mm or more, more preferably 0.6 mm or more, more preferably 4 mm or less, and more preferably Below 3 mm. <22> The absorbent article of any one of the above <1> to <21>, wherein the length of the continuous convex portion in the second direction is preferably 0.9 times or more of the length in the first direction, and further It is preferably 5 times or more, more preferably 50 times or less, and still more preferably 25 times or less. <23> The absorbent article according to any one of the above <1> to <22>, wherein the maximum depth of the concave curved concave portion of the continuous convex portion is preferably along the first direction of the continuous convex portion 10% or more of the length, more preferably 15% or more, more preferably 90% or less, and more preferably 70% or less. <24> The absorbent article of any one of the above <1> to <23>, wherein the distance P (the distance between the same positions) between the continuous convex portions adjacent to each other in the first direction is preferably The length of the continuous convex portion along the first direction is 15% or more, more preferably 100% or more, more preferably 300% or less, and more preferably 200% or less. <25> The absorbent article according to any one of the above <1> to <24>, wherein the absorbent article has an ventral part arranged on the wearer's ventral side when worn, and arranged on the wearer's back side when worn The dorsal part and the lower part of the crotch between the ventral part and the dorsal part, and the length L1 of the continuous convex part along the second direction is preferably the minimum width of the lower part of the crotch of the absorbent article 20% or more, more preferably 30% or more, more preferably 90% or less, and still more preferably 50% or less. [Industrial Applicability] According to the absorbent article of the present invention, the top of the continuous convex portion is soft, and the skin on the side of the skin feels better. In addition, the convex portion is not easily crushed, and the ventilation path between the convex portions is obtained stably Maintains excellent air permeability and anti-moisture properties.

1‧‧‧第1片材1a‧‧‧前端1b‧‧‧後端2‧‧‧第2片材3‧‧‧接合部4‧‧‧凸部4s‧‧‧端部5‧‧‧槽部5S‧‧‧凹部10‧‧‧複合片材12‧‧‧正面片材13‧‧‧背面片材14‧‧‧吸收體14a‧‧‧吸收性芯體14b‧‧‧包芯片材15‧‧‧片材15a‧‧‧彈性構件16‧‧‧腿部彈性構件17‧‧‧黏扣帶18‧‧‧著扣區域30‧‧‧接合部群31‧‧‧第1接合部32‧‧‧第2接合部33‧‧‧第3接合部40‧‧‧連續凸部41‧‧‧第1凸部42‧‧‧第2凸部100‧‧‧拋棄式尿布A‧‧‧腹側部B‧‧‧背側部C‧‧‧胯下部C4‧‧‧彎曲凹部d‧‧‧深度E‧‧‧壓紋區域H1‧‧‧高度L‧‧‧寬度L1‧‧‧長度L2‧‧‧長度Lc‧‧‧中央線M‧‧‧中央區域P‧‧‧間距R‧‧‧彎曲部分S‧‧‧側部區域X‧‧‧第1方向Xa‧‧‧物品長度方向Y‧‧‧第2方向Ya‧‧‧物品寬度方向1‧‧‧The first sheet 1a‧‧‧Front end 1b‧‧‧Back end 2‧‧‧Second sheet 3‧‧‧Joint part 4‧‧‧Protrusion 4s‧‧‧End 5‧‧‧Slot Section 5S‧‧‧Concavity 10‧‧‧Composite sheet 12‧‧‧Front sheet 13‧‧‧Back sheet 14‧‧‧Absorbent 14a‧‧‧Absorbent core 14b‧‧‧Chip-coated material 15‧ ‧‧Sheet 15a‧‧‧Elastic member 16‧‧‧Leg elastic member 17‧‧‧Hook-and-loop fastener 18‧‧‧Fixed area 30‧‧‧Joint part group 31‧‧‧First joint 32‧‧ ‧Second joining part 33‧‧‧Third joining part 40‧‧‧Continuous convex part 41‧‧‧First convex part 42‧‧‧Second convex part 100‧‧‧Disposable diaper A‧‧‧Ventral part B‧‧‧Back side C‧‧‧Crotch C4‧‧‧Curved recess d‧‧‧Depth E‧‧‧Embossed area H1‧‧‧Height L‧‧‧Width L1‧‧‧Length L2‧‧‧ Length Lc‧‧‧Central line M‧‧‧Central area P‧‧‧Spacing R‧‧‧curved part S‧‧‧side area X‧‧‧first direction Xa‧‧‧ article length direction Y‧‧‧th 2 directions Ya‧‧‧Item width direction

圖1係表示作為本發明之吸收性物品之一實施形態的拋棄式尿布之基本構成之俯視圖。圖2係圖1之II-II線剖視圖。圖3係表示第1實施形態之拋棄式尿布之正面片材(複合片材)之俯視圖。圖4係將於第1實施形態中用作正面片材之複合片材之一部分放大而表示之立體圖。圖5係圖3之局部放大俯視圖。圖6係圖5之VI-VI線模式剖視圖。圖7係用以說明第1實施形態中所使用之複合片材之連續凸部之較佳的尺寸及配置之模式俯視圖。圖8(a)～圖8(c)係表示本發明中之連續凸部之另一形態之模式俯視圖(相當於圖7之圖)。圖9係第1實施形態中所使用之複合片材之中央區域與側部區域之交界部附近之放大俯視圖。圖10係將第2實施形態中所使用之複合片材之配設於胯下部之一部分放大而表示之放大俯視圖。Fig. 1 is a plan view showing the basic structure of a disposable diaper as an embodiment of the absorbent article of the present invention. Fig. 2 is a cross-sectional view taken along line II-II of Fig. 1; Fig. 3 is a plan view showing the top sheet (composite sheet) of the disposable diaper of the first embodiment. Fig. 4 is an enlarged perspective view showing a part of the composite sheet used as the front sheet in the first embodiment. Fig. 5 is a partial enlarged top view of Fig. 3. Fig. 6 is a schematic cross-sectional view taken along the line VI-VI of Fig. 5; Fig. 7 is a schematic plan view for explaining the preferred size and arrangement of the continuous protrusions of the composite sheet used in the first embodiment. 8(a) to 8(c) are schematic plan views (corresponding to the view of FIG. 7) showing another form of the continuous convex portion in the present invention. Fig. 9 is an enlarged plan view of the vicinity of the boundary between the central area and the side area of the composite sheet used in the first embodiment. Fig. 10 is an enlarged plan view showing a part of the composite sheet used in the second embodiment arranged in the lower part of the crotch.

3‧‧‧接合部 3‧‧‧Joint

4‧‧‧凸部 4‧‧‧Protrusion

30‧‧‧接合部群 30‧‧‧Joint Group

31‧‧‧第1接合部 31‧‧‧The first joint

32‧‧‧第2接合部 32‧‧‧Second junction

33‧‧‧第3接合部 33‧‧‧The third joint

40‧‧‧連續凸部 40‧‧‧Continuous convexity

41‧‧‧第1凸部 41‧‧‧The first convex part

42‧‧‧第2凸部 42‧‧‧Second convex part

E‧‧‧壓紋區域 E‧‧‧Embossed area

Lc‧‧‧中央線 Lc‧‧‧Central Line

M‧‧‧中央區域 M‧‧‧Central area

S‧‧‧側部區域 S‧‧‧Side area

X‧‧‧第1方向 X‧‧‧1st direction

Xa‧‧‧物品長度方向 Xa‧‧‧Item length direction

Y‧‧‧第2方向 Y‧‧‧2nd direction

Ya‧‧‧物品寬度方向 Ya‧‧‧Item width direction

Claims

An absorbent article comprising a front sheet including a composite sheet, a back sheet, and an absorber arranged between the two sheets, and the composite sheet has a first direction along the length of the article and along the article The second direction in the width direction, and the laminated first sheet and second sheet are joined to each other at a plurality of joints, and the first sheet protrudes away from the second sheet at a location other than the joints , And a convex part protruding to the wearer's skin is formed. In the composite sheet, as the convex part, a plurality of continuous convex parts extending in the second direction are formed at intervals in the first direction, plural The continuous convex portion has a curved portion that is convex and curved toward the front end side or the rear end side of the article in the longitudinal direction when the composite sheet is viewed in plan view; the absorbent article has a ventral side of the wearer when worn The ventral part, the dorsal part arranged on the back of the wearer during wearing, and the lower part of the crotch between the abdominal part and the dorsal part, and the plurality of continuous convex parts are formed at least on the lower part of the crotch.

The absorbent article according to claim 1, wherein each of the continuous convex portions has only one curved portion.

The absorbent article of claim 1 or 2, wherein the entirety of each of the continuous protrusions is curved toward the front end side or the rear end side in the longitudinal direction of the article.

The absorbent article of claim 1 or 2, wherein the above-mentioned plural of the above-mentioned continuous convex parts The direction of the protrusions of the curved part is the same.

The absorbent article of claim 1 or 2, wherein the continuous convex portion has a shape that is bilaterally symmetrical with respect to a center line extending in the length direction of the article.

Such as the absorbent article of claim 1 or 2, which has a central area formed with the above-mentioned protrusions in mutually different patterns and a pair of side areas located on both sides of the central area, and is formed on the side areas The convex portion is formed in a pattern different from the convex portion formed in the central region, that is, the continuous convex portion.

Such as the absorbent article of claim 1 or 2, which has a central area in which the above-mentioned protrusions are formed in different patterns and a pair of side areas located on both sides of the central area, and the above-mentioned protrusions of the composite sheet The arrangement and form of the parts are different in the central area and the pair of side areas.

For example, the absorbent article of claim 1 or 2, which has a central area formed with a plurality of the continuous protrusions and side areas located on both sides of the central area, and the side areas are scattered The above-mentioned convex portions are formed in dots, and concave portions continuous in a lattice shape are formed between the convex portions.

For example, the absorbent article of claim 1 or 2, wherein the central area having the above-mentioned protrusions formed in mutually different patterns and a pair of side areas located on both sides thereof span the length direction of the above-mentioned absorbent article The full length is formed.

The absorbent article of claim 1 or 2, wherein each of the continuous convex portions has a curved portion that is convex and curved toward the front end side in the longitudinal direction of the article when the composite sheet is viewed from above, and the longitudinal direction of the article is the absorbent In the longitudinal direction of the article, the front end side is placed on the side of the wearer's ventral side when worn.

The absorbent article according to claim 1 or 2, wherein the absorbent article has a ventral portion placed on the wearer's ventral side when worn, a dorsal portion placed on the wearer's back side when worn, and located on the ventral side The lower part of the crotch between the lower part and the back side part, and a plurality of the continuous convex parts are formed at least at the center part of the lower part of the crotch in the width direction.

The absorbent article according to claim 1 or 2, wherein the absorbent article has a ventral portion placed on the wearer's ventral side when worn, a dorsal portion placed on the wearer's back side when worn, and located on the ventral side The region of the lower part of the crotch between the part and the dorsal part and including the plurality of continuous convex parts having the above-mentioned curved part spans from the lower part of the crotch to any one or both of the abdomen part and the dorsal part Are formed.

The absorbent article according to claim 1 or 2, wherein the absorbent article has an absorbent body, and a region including a plurality of the continuous convex portions having the curved portion spans the entire length of the absorbent body.

An absorbent article according to claim 1 or 2, which has a central area in which the above-mentioned protrusions are formed in mutually different patterns and a pair of side areas located on both sides of the central area, and Between the continuous convex portions in the central area of the composite sheet, an embossed area that is curved in the same manner as the continuous convex portion is formed. In the first direction, the first sheet and the second sheet are The continuous convex portions and the embossed regions that are not joined therebetween are alternately arranged.

Such as the absorbent article of claim 1 or 2, which has a central area in which the above-mentioned protrusions are formed in mutually different patterns and a pair of side areas located on both sides of the central area, and is in the above-mentioned composite sheet. Between the continuous protrusions in the central area, an embossed area that is curved in the same manner as the continuous protrusion is formed. The embossed area in the central area of the composite sheet is formed on both sides of the embossed area. The above-mentioned continuous convex part is compared with the groove part with a lower height.

Such as the absorbent article of claim 1 or 2, which has a central area in which the above-mentioned protrusions are formed in mutually different patterns and a pair of side areas located on both sides of the central area, and is in the above-mentioned composite sheet. Between the continuous convex portions in the central area, an embossed area that is curved similarly to the continuous convex portion is formed, and the embossed area sandwiching the continuous convex portion is curved in substantially the same shape as the continuous convex portion as a whole.

For example, the absorbent article of claim 1 or 2, which has a central area in which the above-mentioned protrusions are formed in different patterns and a pair of side areas located on both sides of the central area, and is located between the central area and the side Each of the above-mentioned joints in the region becomes the resin that constitutes one or both of the first sheet and the second sheet, which is melted and solidified In addition, in each of the joint portions, the first sheet and the second sheet have higher densities compared to parts other than the joint portion.

Such as the absorbent article of claim 1 or 2, wherein the non-woven fabric is used as the non-woven fabric in the case where the non-woven fabric is used as the sheet material constituting the first sheet and the second sheet, and the non-woven fabric is used as the non-woven fabric to constitute the first sheet and the second sheet. 2 The basis weight of the non-woven fabric of the sheet material is 10 g/m ² or more and 40 g/m ² or less.

Such as the absorbent article of claim 1 or 2, which has a central area in which the above-mentioned protrusions are formed in different patterns and a pair of side areas located on both sides of the central area, and is formed in the central area. The maximum height of the continuous convex part is 0.5mm or more and 10mm or less.

Such as the absorbent article of claim 1 or 2, which has a central area formed with the above-mentioned protrusions in mutually different patterns and a pair of side areas located on both sides of the central area, and is formed on the side areas The height of the first convex part, which has the largest height, is 0.3 mm or more and 4 mm or less.

The absorbent article of claim 1 or 2, wherein the length of the continuous convex portion along the second direction is 0.9 times or more and 50 times or less of the length along the first direction.

An absorbent article according to claim 1 or 2, wherein the maximum depth of the concave curved concave portion of the continuous convex portion is 10% to 90% of the length of the continuous convex portion along the first direction.

The absorbent article of claim 1 or 2, wherein the distance between the continuous protrusions adjacent to each other in the first direction is 15% or more and 300% or less of the length of the continuous protrusion in the first direction.

The absorbent article according to claim 1 or 2, wherein the absorbent article has a ventral portion placed on the wearer's ventral side when worn, a dorsal portion placed on the wearer's back side when worn, and located on the ventral side The lower part of the crotch between the lower part and the back side part, and the length of the continuous convex part along the second direction is 20% to 90% of the minimum width of the lower part of the crotch of the absorbent article.