201108999 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種穿用物品，更詳細而言 後即棄型紙尿布、排泄訓練褲、失禁用內褲等 【先前技術】 一直以來，具有：具液體保持特性之吸液 及防止漏尿等之防漏褶邊的用後即棄型紙尿布 知。例如：根據專利文獻1，紙尿布係具有前 與胯下區域，在吸液構造體的身體側係裝設了 防漏褶邊係在位於橫方向內側的自由端，朝外 朝縱方向離開的兩端部份，這些兩端部份係被 構造體側，以維持著反折的狀態。在防漏褶邊 裝設了彈性構件，在上述被固定的兩端部份之 以朝向身體側豎立般分開。藉由這種防漏褶邊 尿液等排泄物從紙尿布的內部外漏。 〔先前技術文獻〕 〔專利文獻〕 〔專利文獻1〕日本特開200 1 - 1 3 72 82號公: 1 3 72 82A ) 【發明內容】 〔發明所欲解決之課題〕 防漏褶邊係從胯下區域，在前後腰部區域 ，是關於用 構造體、以 ，係廣爲人 後腰部區域 防漏褶邊。 側反折，在 固定在吸液 的自由端係 間，褶邊係 ，即可防止 (JP200 1 - 朝向縱方向 -5- 201108999 延伸所形成，自由端係在其兩端部份被固定在吸液構造體 側，所以，不只是在胯下區域，即使是在前後腰部區域， 被固定之兩端部份以外的自由端也會朝身體側豎立。因此 ，即使在前後腰部區域，吸液構造體與穿用者的身體分開 ，在這些吸液構造體與身體之間就會形成空隙。一旦形成 了空隙，被排泄的尿液等就會在空隙中移動，而有可能從 紙尿布外漏。 本發明之課題即爲提供一種穿用物品，其在前後腰部 區域，吸收體等的吸液構造體不會從穿用者的身體離開， 可防止尿液等因爲在穿用者與吸液構造體之間形成空隙而 外漏。 〔用以解決課題之手段〕 本發明係關於一種穿用物品的改良，該穿用物品係包 含：本體，該本體係包括：縱方向與橫方向、身體側與其 相反側、前腰部區域、後腰部區域、以及位在上述前後腰 部區域間的胯下區域；從上述胯下區域朝上述前後腰部區 域延伸的吸液構造體；位在上述主體之身體側的一對防漏 褶邊；以及位在上述吸液構造體之上述橫方向外側的一對 襯墊褶邊。 本發明在上述穿用物品中，其特徵爲：上述吸液構造 體係包含：朝上述縱方向離開的前後部、以及位在上述前 後部之間的中間部；上述阻漏褶邊係包含：接合於上述主 體的近端緣；以可朝上述縱方向伸縮的方式被彈性化，可 -6- 201108999 從上述本體朝向上述身體側離開的遠端緣；位在上述近端 緣與上述遠端緣之間，朝上述縱方向延伸的虛擬彎折線， 並且，上述遠端緣係沿著上述虛擬彎折線彎曲，在與上述 前後部重疊的位置，與上述吸液構造體接合，形成朝上述 縱方向延伸的前後接合區域。 本發明較佳實施形態之一爲：上述阻漏褶邊係被朝向 上述縱方向延伸的複數條彈性構件所彈性化，上述彈性構 件的至少一條係被配置在上述近端緣與上述虛擬彎折線之 間。 其他較佳實施形態之一爲：上述前接合區域係具有上 述前腰部區域之上述縱方向之長度尺寸的4 5〜70%的長度尺 寸，上述後接合區域係具有上述後腰部區域之上述縱方向 之長度尺寸的30〜50%的長度尺寸。 其他較佳實施形態之一爲：上述前接合區域的上述縱 方向的長度尺寸，係大於上述後接合區域者。 其他較佳實施形態之一爲：上述襯墊褶邊係包含：位 在上述橫方向內側的內側緣；以及位在外側，並且以可朝 上述縱方向伸縮的方式被彈性化的外側緣；上述阻漏褶邊 之上述遠端緣的伸長應力，係大於上述襯墊褶邊之上述外 側緣的伸長應力。 其他較佳實施形態之一爲：上述吸液構造體係包含吸 液性芯材’上述吸液性芯材的上述中央部的上述橫方向之 長度尺寸，係小於上述前後部之上述橫方向的長度尺寸， 上述阻漏褶邊的上述近端緣係在上述中央部，以不與上述 201108999 吸液性芯材重疊的方式，接合於上述主體。 其他較佳實施形態之一爲：上述前後腰部區域係被朝 向上述橫方向延伸的複數條彈性構件所彈性化，上述彈性 構件的至少一部份係與上述前後接合區域重疊。 其他較佳實施形態之一爲：從上述阻漏褶邊的上述近 端緣到上述遠端緣爲止的長度尺寸，係長於從上述襯墊褶 邊之上述內側緣到上述外側緣爲止的長度尺寸。 其他較佳實施形態之一：上述主體的上述後腰部區域 之上述縱方向的長度尺寸，係大於其上述前腰部區域之上 述縱方向長度尺寸，在上述後腰部區域之上述胯下區域側 ，係包含從上述前腰部區域延伸出去的下端區域，上述襯 墊褶邊係被朝向上述縱方向延伸的複數條彈性構件所彈性 化，上述襯墊褶邊的彈性構件，係與上述下端區域之彈性 構件的至少一部份重疊來裝設。 〔發明效果〕 本發明之阻漏褶邊，在沿著虛擬彎折線彎曲的同時， 遠端緣係與吸液構造體的前後部重疊，利用前後接合區域 而與吸液構造體接合。因此，在前後腰部區域，前後吸液 構造體就不會從穿用者的身體離開，可防止尿液等因爲在 穿用者與吸液構造體之間產生的空隙而外漏。 【實施方式】 第1圖〜第6圖係顯示本發明的一實施形態，以用後即 -8- 201108999 棄型紙尿布做爲穿用物品來舉例說明。 第1圖係顯示紙尿布1 〇的腰部開口與腿部開口保持在 環狀之狀態的立體圖，第2圖係爲從紙尿布1 0的身體側所 見到的展開平面圖，使紙尿布的各彈性體抵抗其收縮力而 伸長，顯示紙尿布1 0保持在平面的狀態，第3圖係第2圖的 III-III線剖面圖，第4圖係第2圖的IV-IV線剖面圖，第5圖 爲第2圖的分解組裝圖，第6圖係紙尿布10的平面圖，爲腰 部開口與腿部開口的環狀解開，呈封閉的狀態。在第3圖 與第4圖中，在比虛擬縱中心線P-P更靠近圖的右側，係顯 示各彈性體呈收縮的狀態。 紙尿布1 0係包含：縱方向Y與橫方向X、身體側與其 相反側的穿衣側、前腰部區域11 '後腰部區域1 2、以及位 在前後腰部區域1 1，1 2之間的胯下區域1 3。紙尿布1 0又包 含：將橫方向X的長度尺寸二等份的虛擬縱中心線P-P、以 及將縱方向Y的長度尺寸二等份的虛擬橫中心線Q-Q ’以 面對虛擬縱中心線P-P，大約呈對稱形成。 紙尿布1 〇係包含：形成前腰部區域1 1的前腰部構件20 、形成後腰部區域1 2的後腰部構件3 0、以及在形成胯下區 域1 3的同時，又朝前後腰部區域1 1 ’ 1 2延伸的胯下構件40 。本發明的主體係由：前後腰部構件2〇 ’ 3 0、以及胯下構 件4 0的一部份所構成。 前腰部構件20係包含：位在身體側的前內面薄片2 1、 位在穿衣側的前外面薄片2 2、以及被裝設在這些薄片2 1 ’ 2 2之間的前彈性構件2 3。後腰部構件3 0係包含：位在身體 201108999 側的後內面薄片3 1、位在穿衣側的後外面薄片32、以及被 裝設在這些薄片3 1，3 2之間的後彈性構件3 3。前後彈性構 件2 3，3 3在朝向橫方向X延伸的同時，在伸長狀態，以可 收縮的方式來裝設，將前後腰部區域11，12朝橫方向X彈 性化。前後彈性構件23 ’ 33係以朝向縱方向γ分開預定的 尺寸來裝設。 後腰部構件30之縱方向Y的長度尺寸係大於前腰部構 件2 0者，在後腰部構件3 0之縱方向Y的胯下區域1 3側，也 就是虛擬橫中心線Q - Q側，係形成了從前腰部構件2 0的胯 下區域13側延伸出去的下端區域30a。在下端區域30a，後 彈性構件3 3的分開尺寸係大於其他區域者。如此藉由使分 開尺寸變大，即不須使後內外面薄片3 1，3 2的剛性變大， 而可維持柔軟的觸感。又，藉由被裝設在下端區域30a的 後彈性構件33，可將下端區域30a壓向穿用者的肌膚，此 可防止不小心的彎折。 如上述的前後腰部構件20，30，其兩側緣24，24係彼 此接合，形成環狀的腰部開口。 如第2圖所示，前後腰部構件20，30，其位在該縱方 向Y之外側的外端緣26，3 6係朝向虛擬橫中心線Q-Q被反 折’分別形成前後套筒（sleeve)部25，35。前後套筒部 25 ’ 35係包覆著胯下構件40的端部。胯下構件40在前後腰 部區域11，12，其穿衣側係接合於前後內面薄片21，31。 胯下構件40係包含：吸液構造體4 1、包覆吸液構造體 41的內面，位在身體側的內裝薄片42、包覆吸液構造體41 -10- 201108999 之外面的防漏薄片43、以及爲防漏薄片43的外面’ 衣側的外裝薄片44。吸液構造體4 1係包含：被吸水 液擴散性薄片所包覆的吸液性芯材，吸液性芯材係 :絨毛紙漿或高吸收性聚合物粒子等。這種吸液構 之橫方向X的長度尺寸，係愈朝向虛擬橫中心線Q 小，整體呈砂漏狀。意即，吸液構造體4 1係包含： 方向Y之外側的前後部45，46、以及位在前後部45 間的中間部4 7，中間部4 7的橫方向X的長度尺寸係 爲小於前後部45，46者。 吸液構造體4 1的縱方向Y的長度尺寸被設 300~400mm >以約3 3 5〜3 8 0 m m爲宜。內裝薄片4 2與 片43係大於吸液構造體41的縱方向Y的長度尺寸， 約被設定在3 5 0〜450mm ’約3 75〜430mm爲佳。在這 構件40之縱方向Y的前後端部係不存在吸液構造體 就是說，形成了只有存在於內裝薄片42與防漏薄片 後翼部48，49。在這些前後翼部48’ 49’內裝薄片 漏薄片43係利用熱熔黏接劑等的黏接手段，彼此接 起。 內裝薄片42係可使用透液性的纖維不織布等。 薄片42，例如可使用：每單位面積的質量約爲1 0-的氣流型纖維不織布、點黏結型纖維不織布、紡黏 不織布等。 防漏薄片43係可使用透濕性且不透液性的塑膠 至少以該薄片43包覆著吸液構造體4 1全體，以防止 位在穿 紙等之 可使用 造體41 -Q愈變 位在縱 ，46之 被設定 定爲約 防漏薄 該尺寸 種胯下 41，也 43的前 42與防 合在~ 該內裝 -2 5 g/m2 型纖維 薄膜， 尿液等 -11 - 201108999 布約 織量 不質 維的 纖積 的面 性位 液單 透每 不’ 且如 性例 濕 ： 透用 用使 。 使可 漏可係 外係44 1044片 布片薄 尿薄裝 紙裝外 從外該 液。 體等 爲10〜25g/rn2的紡黏/熔融吹紡/紡黏型（SMS)纖維不織布 、點黏結型纖維不織布、紡黏型纖維不織布等。 襯墊褶邊50與阻漏褶邊60係由外裝薄片44所形成。襯 墊褶邊50之從吸液構造體41的外面延伸出去的外裝薄片44 ，係由第1以及第2套筒51，61分別形成，該第1以及第2套 筒5 1，6 1係在吸液構造體4 1之橫方向X被折疊所形成。（ 參照第2〜第5圖） 襯墊褶邊50係形成了：位在第1套筒51之橫方向X內側 的內側緣52、以及該相反側的外側緣53。朝縱方向Y延伸 的襯墊彈性構件55係以伸長狀態，以可收縮的方式被安裝 在第1套筒5 1內面，襯墊褶邊50係朝縱方向Y被彈性化。從 吸液構造體4 1的外面朝橫方向X外側延伸出去的防漏薄片 43的側緣部份，係位在這種第1套筒51內面，也就是外裝 薄片44之間。在第1套筒51內面，外裝薄片44、防漏薄片 43、襯墊彈性構件55係利用黏接劑等的接合手段相互接合 ，形成襯墊接合區域56。襯墊接合區域5 6係朝向胯下構件 40的縱方向Y連續延伸。 襯墊彈性構件55係包含：朝橫方向X彼此分開的第1〜 第3襯墊彈性構件5 5 a~5 5 c。第1襯墊彈性構件5 5 a係沿著外 側緣5 3延伸，第3襯墊彈性構件5 5 c係沿著內側緣5 2延伸， 第2襯墊彈性構件5 5b則沿著彈性構件5 5 a ’ 5 5 c之間延伸。 -12- 201108999 像這樣利用彈性構件可使襯墊褶邊5 0朝縱方向Y被彈性化 ，讓襯墊褶邊以內側緣52爲基點，使外側緣53豎立，以 可密貼於穿用者之大腿根部附近。因此，可防止尿液等從 穿用者的腿圍外漏。 襯墊彈性構件5 5係以與被安裝在後腰部構件3 0之下端 區域3 0 a的後彈性構件3 3重疊交叉的方式來安裝。因此， 可使下端區域3 0 a也對縱方向Y被彈性化，可使下端區域 3〇a沿著穿用者的臀部曲線密貼。特別是，如本實施形態 所示，在前後腰部構件20，30、與胯下構件40，分別是以 不同的構件所形成的紙尿布中，胯下構件40係比前後腰部 構件20，30容易移動，胯下區域13容易移動。但是，藉由 使下端區域3 Oa與穿用者密貼，即可控制該移動。 第1〜第3襯墊彈性構件55a〜55c，分別可使用約 470~1 240dtex的彈性絲，該伸長率設定爲約1.5〜3.0倍。第 1〜第3襯墊彈性構件55a〜55c係在橫方向X，以彼此分開約 3〜20mm的方式安裝。藉由將該分開距離設定在3mm以上， 可防止彈性構件相互重疊，接觸到穿用者的肌膚，防止在 肌膚上留下縐褶的痕跡。又藉由將分開距離設定在20mm 以下，可使襯墊褶邊50確實豎立’抵接到穿用者的肌膚。 第1〜第3襯墊彈性構件55a~55c ’係在對應於吸液構造 體41的中間部47的位置，被設置在其橫方向X外側，而在 對應於前後部45，46的位置並沒有裝設，或者是僅稍微延 伸設置。也就是說，實質上’第1〜第3襯墊彈性構件 5 5a〜5 5c，係以在前後部45，46 ’其收縮力不會對吸液構 -13- 201108999 造體41發生作用的方式來裝設。因此，利用這些第1〜第3 襯墊彈性構件55a〜55c，即可防止在前後部45，46發生皴 褶。 第3襯墊彈性構件55c係從位於吸液構造體41的中間部 47之側緣，朝外側離開約5〜1 5mm。藉由將離開尺寸設定 爲5mm以上，除了可防止在中間部47發生皺褶，還可利用 中間部47的剛性，以使不會防礙到第3襯墊彈性構件55c的 必要收縮。藉由將第3襯墊彈性構件5 5 c的離開距離設定在 1 5 mm以下，即可利用該彈性構件的必要收縮，將吸液構 造體4 1的側緣壓向穿用者的身體側。 阻漏褶邊60係由：從襯墊褶邊50之內側緣52更進一步 延伸的外裝薄片44所折疊之第2套筒61所形成。外裝薄片 44在第2套筒61內面相互接合，包含：朝內側緣52連續的 近端緣6 2、以及比近端緣6 2更位在身體側的遠端緣6 3。所 謂內側緣52與近端緣62，在實質上係指相同部份。因此， 近端緣62係與內側緣52，經由防漏薄片43，在其縱方向γ 的全區域，與外裝薄片44接合。 朝縱方向Y延伸的阻障彈性構件64，係以伸長狀態， 以可收縮的方式被安裝在第2套筒61內，阻漏褶邊60係朝 縱方向Y被彈性化。阻障彈性構件64從遠端緣63朝向近端 緣62，係包含了：第1〜第4阻障彈性構件64a〜64d的4條彈 性構件。 做爲第1~第4阻障彈性構件64a〜64d，係可使用約 470〜1 240dtex的彈性絲，可設定爲大約1.5〜3.0倍的伸長率 -14- 201108999 。第1~第4阻障彈性構件64a〜64d係在橫方向X ’以彼此分 開約3~2 0mm的方式來裝設。藉由將該分開距離設定在3mm 以上，可防止彈性構件重疊，接觸到穿用者的肌膚’防止 在肌膚上留下皺褶的痕跡。又藉由將分開距離設定在 20mm以下，可使阻漏褶邊60確實竪立，抵接到穿用者的 肌膚。 第4阻障彈性構件64d係從襯墊褶邊50的內側緣52 ’朝 向遠端緣63側分開約5mm以上。藉由將分開距離設定爲 5mm以上，可使內側緣52以及近端緣62密貼於穿用者的 大腿根部。 第1〜第4阻障彈性構件64a~64d，係位於吸液構造體41 之中間部47的橫方向X外側，並且朝向前後部45，46延伸 設置。 在阻漏褶邊60的近端緣62與遠端緣63之間，也就是在 第3阻障彈性構件64c與第4阻障彈性構件64d之間，係形成 了朝向縱方向Y延伸的虛擬彎折線6 5。阻漏褶邊6 0係在阻 障彈性構件64非收縮的狀態下，沿著虛擬彎折線65被折疊 ，使遠端緣63位在比虛擬彎折線65更朝向橫方向X外側。 被折疊的阻漏褶邊60在吸液構造體41的前後部45，46 ’於 其身體側重疊，在中間部47沒有重疊，是位在其橫方向X 外側。 被彎折的阻漏褶邊60係在吸液構造體4 1的前後部45， 46，利用黏接劑等接合手段與內裝薄片42接合，形成前後 接合區域66，67。前後接合區域66，67係朝縱方向Y延伸 -15- 201108999 在如上述的紙尿布中，阻漏褶邊6〇的遠端緣63係以從 內裝薄片42分開般豎立，在與穿用者的腿根部附近密貼的 同時，襯墊褶邊50的外側緣53係在遠端緣63之橫方向X外 側，與穿用者的大腿周圍密貼。也就是說’利用這些阻漏 褶邊60與襯墊摺邊50，形成了二層的褶邊’可防止尿液等 從腿圍外漏。 如上述之阻漏褶邊60的縱方向Y的伸長應力，係大於 襯墊褶邊50之縱方向Y的伸長應力。藉由如此的形成，位 在比襯墊褶邊50更爲內側的阻漏褶邊60 ’就可以面接觸的 方式，與穿用者的大腿密貼。此外，這些褶邊50，60各自 分開，與穿用者接觸的同時，可二段式的防止尿液等外漏 。襯墊褶邊50與阻漏褶邊60之縱方向Y的伸長應力，可根 據各彈性構件的條數或粗細來加以設定，伸長應力的大小 關係也並非被限定成如上所述，可做適當的設定。 從阻漏褶邊60之近端緣62到遠端緣63爲止的長度尺寸 ，約爲260〜3 00mm，以約2 90mm爲宜，從襯墊褶邊50之內 側緣52到外側緣53爲止的長度尺寸，約爲200~3 50mm，以 約23 0〜2 70mm爲宜，阻漏褶邊60的長度尺寸係大於襯墊褶 邊5 0的長度尺寸。藉由這種尺寸關係與上述伸長應力關係 ，即如第6圖所示般，阻漏褶邊60係從襯墊褶邊50的內側 延伸出去。在從紙尿布1 〇的內側來看時，只能看到由阻漏 褶邊60所形成的腿部開口，襯墊褶邊50係被阻漏褶邊60所 遮蔽而無法看見。也就是說，因爲只能確認一個腿部開口 -16- 201108999 ，所以只要讓穿用者的腿部穿過即可，易於穿著。此外， 因爲有二層的褶邊，所以可讓穿用者或其看護者知道其可 防止尿液等外漏，故更有安全感。 阻漏褶邊60係在與吸液構造體41之前後部45，46重疊 的位置，利用前後接合區域66，67，與被折疊的區域接合 ，所以，即使當阻障彈性構件64收縮，遠端緣63也不會豎 立。因此，吸液構造體41可一直大範圍的與穿用者的身體 接觸，在與身體之間不會形成空隙，故可防止尿液等流動 ，從腰部開口等外漏。又，藉由將前接合區域66之縱方向 Y的長度尺寸設定爲大於後接合區域67，則在前腰部區域 1 1側，可使吸液構造體4 1與穿用者的身體密貼，在後腰部 區域1 2側，可使阻漏褶邊60的豎立區域增大。 阻障彈性構件64的第4阻障彈性構件64d，係位在近端 緣6 2與虛擬彎折線6 5之間，所以可使其間的剛性變大，使 阻漏褶邊60確實豎立，可使遠端緣63抵接到穿用者的鼠蹊 部附近。 本發明之紙尿布的縱方向Y的長度尺寸約爲 400~5 20mm，以約41 0〜45 0mm爲宜，在本實施形態中係設 定爲415mm。同樣的，胯下構件40之縱方向Y的長度尺寸 約爲3 70〜45 0mm，以約3 5 0-3 8 0mm爲宜，在本實施形態中 係設定爲約375 mm。形成前腰部區域1 1之前腰部構件20之 縱方向Y的長度尺寸約爲80〜130mm ’以約85-125 mm爲宜 ，在本實施形態中約爲90mm。形成後腰部區域1 2之後腰 部構件3 0之縱方向Y的長度尺寸約爲1 5 〇9 0 m m，以約 -17- 201108999 155〜185mm爲佳，在本實施形態中約爲155mm。 胯下構件4 0雖在紙尿布1 0的前後腰部構件2 0，3 0的一 部份重疊，於前腰部構件20，吸液構造體41之縱方向Y的 長度尺寸的大約70mm係與其重疊，於後腰部構件30，則 約8 0mm與其重疊。意即，吸液構造體4 1係分別佔了前腰 部構件2 0之縱方向Y的長度尺寸的大約4 5 %，以及後腰部 構件3 0的大約2 4 %。 再者，在這些重疊的位置係形成了前後接合區域66, 67，其縱方向Y的長度係分別被設定爲約60mm以及約 4 5mm。前接合區域66的縱方向Y的長度尺寸以被設定爲前 腰部區域11之縱方向Y的長度尺寸的大約4 5〜7 0%，以約 55〜67%爲宜，而後接合區域67之縱方向Y的長度尺寸以被 設定爲後腰部區域12之縱方向Y的長度尺寸的大約30〜50% ，尤以大約29%爲佳。 前後接合區域66，67係以在前後腰部構件20，30的前 後彈性構件23，33重疊的方式來形成。意即，在前後彈性 構件2 3，3 3與吸液構造體4 1重疊的部份，於虛擬縱中心線 P-P旁邊，係以其收縮力不會作用的方式分開設置。但是 ，該前後彈性構件23，33係從兩側緣24，3 4朝向虛擬縱中 心線P-P，至少延伸到與前後接合區域66，67交叉爲止。 因此，可確實地將前後接合區域66，67壓向穿用者的身體 側，可防止在吸液構造體4 1與穿用者之間形成空隙。 本發明之紙尿布1 〇的縱方向Y的長度尺寸較小，特別 可以適用於嬰幼兒的紙尿布爲對象。即使是在紙尿布1 0之 -18- 201108999 縱方向γ的長度尺寸設定爲較小的情形下，爲了不使尿液 等的吸收量變少’以不縮小吸液構造體4 1爲宜。如此一來 ’就如上所述般’吸液構造體4 1在紙尿布1 0所佔的比例就 會變大。因爲吸液構造體4 1的剛性通常較大，所以，一旦 吸液構造體4 1所佔的比例變大的話，前後腰部構件20，30 就可能不易與穿用者的身體密貼。但是，在本實施形態中 ，藉由形成前後接合區域6 6，6 7，即可在前後腰部區域1 1 ，12，使吸液構造體41與穿用者密貼，在防止紙尿布10脫 落的同時，還可防止在與穿用者之間形成空隙。 後腰部構件30之縱方向Υ的長度尺寸係設定爲大於前 腰部構件20的長度尺寸。在這樣的紙尿布10中，如第1圖 以及第6圖所示般，後腰部構件30的下端區域30a係朝向胯 下區域1 3側延伸出去，具有包覆穿用者之臀部的功能。這 種後腰部構件3 0係以橫跨其縱方向Y，包覆著腿部開口的 方式延伸爲佳。意即，後腰部構件30的下端區域30a以從 腰部開口端緣，跨過阻漏褶邊60之遠端緣63，朝胯下區域 1 3側延伸爲佳。藉由如此的形成，下端區域3 0a就會包覆 著穿用者的臀部，即使排泄物從腿部開口外漏，也可承受 該排泄物。因此，可防止排泄物附著到穿用者或衣服。特 別是在要把紙尿布1 〇從睡著之嬰幼兒等身上脫下時’雖然 排泄物較易從腿部開口外漏，但仍可加以防止。 在胯下構件40的縱方向Y外側’係形成了被前後彈性 構件23，33所彈性化的前後外側彈性區域27，37，在該前 後外側彈性區域2 7，3 7的縱方向Y內側’係形成了前後內 19- 201108999 側彈性區域2 8，3 8。前外側彈性區域2 7的一部份係包含了 前翼部48，後外側彈性區域28係外在比後翼部49更爲外側 的位置。前後外側彈性區域27，3 7的伸長應力係小於前後 內側彈性區域2 8，3 8的伸長應力。意即，藉由使前後內側 彈性區域28，3 8的伸長應力變大，可使胯下構件40的吸液 構造體41與穿用者的身體側密貼，可防止紙尿布脫落。 爲了使前後腰部構件20，30朝橫方向X彈性化，而使 用了複數條的彈性絲，但是，不限於此，也可使用彈性薄 片或帶狀的彈性體等各種的彈性構件。同樣的，襯墊彈性 構件5 5與阻障彈性構件64也可使用各式各樣的彈性構件。 有關吸液構造體41雖使用中間部47之橫方向X的長度尺寸 小於前後部45，46者，但是也可以使用這些中間部47與前 後部45，46之橫方向X的長度尺寸均爲相同者。 【圖式簡單說明】 第1圖係紙尿布的立體圖。 第2圖係爲從紙尿布的身體側所見到的展開平面圖。 第3圖係第2圖的III-III線剖面圖。 第4圖係第2圖的IV-IV線剖面圖。 第5圖係第2圖的分解組裝圖。 第6圖係紙尿布的平面圖。 【主要元件符號說明】 1 0 :紙尿布：（穿用物品） -20- 201108999 11: 12: 13: 20 ： 23 ： 27 ： 28 : 30 ： 30a 33 ： 37 ： 38 ： 40 ： 41 ： 45 ： 46 : 47 ： 50 ： 52 ： 53 ： 55 ： 60 ： 62 ： 63 ： 前腰部區域 後腰部區域 胯下區域 前腰部構件 前彈性構件 前外側彈性區域 前內側彈性區域 後腰部構件 :下端區域 後彈性構件 後外側彈性區域 後內側彈性區域 胯下構件 吸液構造體 前部 後部 中間部 襯墊褶邊 內側緣 外側緣 襯墊彈性構件 阻漏褶邊 近端緣 遠端緣 -21 201108999 64 :阻障彈性構件 65 :虛擬彎折線 6 6 :前接合區域 6 7 ·後接合區域· X :橫方向 Y _·縱方向 -22201108999 VI. Description of the Invention: [Technical Field] The present invention relates to a wearing article, and more particularly to a disposable disposable diaper, a drainage training pants, an incontinence brief, etc. [Prior Art] A liquid disposable diaper is known for liquid absorption of liquid retention characteristics and leakage preventing pleats such as leakage of urine. For example, according to Patent Document 1, the disposable diaper has a front and a crotch region, and the body side of the liquid-absorbent structure is provided with a leak-proof hem which is attached to the free end in the lateral direction, and is outwardly directed away from the longitudinal direction. At both ends, these end portions are on the side of the structure to maintain the reflexed state. An elastic member is attached to the leakage preventing hem, and the both ends of the above-mentioned fixed portions are erected toward the body side. Excretion such as leakage of pleated urine and the like leaks from the inside of the disposable diaper. [Prior Art Document] [Patent Document 1] [Patent Document 1] Japanese Patent Laid-Open Publication No. 2001- 1 3 72 82: 1 3 72 82 A) [Problems to be Solved by the Invention] Leak-proof hem In the underarm area, in the front and rear waist areas, it is about the use of the structure, the body, and the wide-angled area of the back waist. The side folds are fixed between the free end of the liquid suction, and the hem is prevented (JP200 1 - extending toward the longitudinal direction -5 - 201108999, and the free end is fixed at the two ends thereof. Since the liquid structure side is not only in the crotch region, even in the front and rear waist regions, the free ends other than the fixed end portions are erected toward the body side. Therefore, even in the front and rear waist regions, the liquid absorbing structure The body is separated from the wearer's body, and a gap is formed between the absorbent structure and the body. Once the void is formed, the excreted urine or the like moves in the gap, and may leak from the outer diaper. An object of the present invention is to provide a wearing article in which the liquid-absorbent structure such as an absorbent body is not separated from the wearer's body in the front and rear waist regions, thereby preventing urine or the like from being worn by the wearer and the liquid. A gap is formed between the structures to leak out. [Means for Solving the Problem] The present invention relates to an improvement of a wearing article, the wearing article comprising: a body comprising: a longitudinal direction and a lateral direction, a body a side of the crotch region opposite to the side of the front and rear waist regions; a pair of leakage preventing hem; and a pair of pad hem on the outer side in the lateral direction of the liquid absorbing structure. The wearing article of the present invention is characterized in that: the liquid absorbing structure system includes: a front-rear portion that is separated in the longitudinal direction and an intermediate portion that is located between the front and rear portions; the leakage hem includes: a proximal edge that is joined to the main body; and is elasticized so as to be expandable and contractable in the longitudinal direction. -6- 201108999 a distal edge exiting from the body toward the body side; a virtual bending line extending between the proximal edge and the distal edge toward the longitudinal direction, and the distal edge is along The virtual bending line is curved and joined to the liquid-absorbent structure at a position overlapping the front and rear portions to form a front-rear joint region extending in the longitudinal direction. In one embodiment, the leakage hem is elasticized by a plurality of elastic members extending in the longitudinal direction, and at least one of the elastic members is disposed between the proximal edge and the virtual bending line. In a preferred embodiment, the front joint region has a length dimension of 45 to 70% of the longitudinal dimension of the front waist region, and the rear joint region has the longitudinal direction of the rear waist region. The length dimension of 30 to 50% of the length dimension. One of the other preferred embodiments is that the longitudinal dimension of the front joint region is greater than the rear joint region. One of the other preferred embodiments is: The liner hem includes: an inner edge located on the inner side in the lateral direction; and an outer edge positioned on the outer side and elasticized so as to be expandable and contractible in the longitudinal direction; the distal edge of the leakage hem The elongation stress is greater than the elongation stress of the outer edge of the liner hem. In another preferred embodiment, the liquid-absorbent structure system includes a liquid-absorbent core member, wherein a length dimension of the central portion of the liquid-absorbent core member in the lateral direction is smaller than a length of the front-rear portion in the lateral direction. The size of the proximal end edge of the leakage pleat is joined to the main body so as not to overlap the 201108999 liquid absorbing core material at the center portion. In another preferred embodiment, the front and rear waist regions are elasticized by a plurality of elastic members extending in the lateral direction, and at least a portion of the elastic members overlaps with the front and rear joint regions. In another preferred embodiment, the length dimension from the proximal edge of the leakage pleat to the distal edge is longer than the length from the inner edge of the liner hem to the outer edge . In another preferred embodiment, the longitudinal dimension of the rear waist region of the main body is greater than the longitudinal dimension of the front waist region, and is on the side of the crotch region of the rear waist region. And including a lower end region extending from the front waist region, wherein the liner hem is elasticized by a plurality of elastic members extending in the longitudinal direction, and the elastic member of the liner hem is connected to the elastic member of the lower end region At least a portion of the overlap is installed. [Effect of the Invention] The leakage hem of the present invention is curved along the virtual bending line, and the distal edge overlaps the front and rear portions of the liquid-absorbent structure, and is joined to the liquid-absorbent structure by the front-rear joint region. Therefore, in the front and rear waist regions, the front and rear liquid-absorbent structures are not separated from the wearer's body, and leakage of urine or the like due to a gap between the wearer and the liquid-absorbent structure can be prevented. [Embodiment] Figs. 1 to 6 show an embodiment of the present invention, and a disposable diaper which is -8-201108999 after use is exemplified as a wearing article. Fig. 1 is a perspective view showing a state in which the waist opening and the leg opening of the disposable diaper 1 are kept in a ring shape, and Fig. 2 is a developed plan view seen from the body side of the disposable diaper 10 to make each diaper elastic. The body is stretched against the contraction force, and the paper diaper 10 is kept in a flat state. Fig. 3 is a sectional view taken along line III-III of Fig. 2, and Fig. 4 is a sectional view taken along line IV-IV of Fig. 2, 5 is an exploded assembly view of Fig. 2, and Fig. 6 is a plan view of the diaper 10 in a state in which the waist opening and the leg opening are unwrapped and closed. In the third and fourth figures, the elastic body is in a contracted state on the right side of the figure closer to the virtual longitudinal center line P-P. The disposable diaper 10 includes a longitudinal direction Y and a lateral direction X, a garment side opposite to the body side, a front waist region 11 'the rear waist region 1 2, and a position between the front and rear waist regions 1 1,1 2 . Under the armpit area 1 3. The disposable diaper 10 further includes: a virtual longitudinal center line PP having two equal lengths in the lateral direction X, and a virtual horizontal center line QQ' having two equal lengths in the longitudinal direction Y to face the virtual longitudinal center line PP , approximately symmetrically formed. The disposable diaper 1 comprises: a front waist member 20 forming a front waist region 11 , a rear waist member 30 forming a rear waist region 12, and a front waist region 1 1 while forming a crotch region 13 ' 1 2 extended underarm member 40. The main system of the present invention consists of a front and rear waist member 2'', and a portion of the underarm member 40. The front waist member 20 includes: a front inner sheet 2 1 on the body side, a front outer sheet 2 2 on the dressing side, and a front elastic member 2 mounted between the sheets 2 1 ' 2 2 3. The rear waist member 30 includes: a rear inner sheet 31 on the side of the body 201108999, a rear outer sheet 32 on the garment side, and a rear elastic member mounted between the sheets 3 1, 3 2 3 3. The front and rear elastic members 2 3, 3 3 are extended in the lateral direction X, and are attached in a contractible manner in an extended state, and the front and rear waist regions 11, 12 are elasticized in the lateral direction X. The front and rear elastic members 23'' are attached to a predetermined size in the longitudinal direction γ. The length dimension of the longitudinal direction Y of the rear waist member 30 is larger than that of the front waist member 20, and is on the side of the crotch region 13 of the longitudinal direction Y of the rear waist member 30, that is, the virtual transverse center line Q - Q side. A lower end region 30a extending from the crotch region 13 side of the front waist member 20 is formed. In the lower end region 30a, the separated size of the rear elastic member 33 is larger than that of the other regions. Thus, by making the separation size large, it is not necessary to increase the rigidity of the rear inner and outer sheets 3 1, 3 2, and the soft touch can be maintained. Further, by the rear elastic member 33 attached to the lower end region 30a, the lower end region 30a can be pressed against the wearer's skin, which prevents accidental bending. The front and rear waist members 20, 30, as described above, have their side edges 24, 24 joined to each other to form an annular waist opening. As shown in Fig. 2, the front and rear waist members 20, 30, which are located at the outer edge 26 on the outer side of the longitudinal direction Y, are folded back toward the virtual transverse center line QQ to form a front and rear sleeve (sleeve), respectively. Department 25, 35. The front and rear sleeve portions 25' 35 cover the ends of the crotch member 40. The underarm member 40 is joined to the front and rear inner sheets 21, 31 at the front and rear waist regions 11, 12, the garment side thereof. The underarm member 40 includes an inner surface of the liquid-absorbent structure 41, the inner surface of the liquid-absorbent structure 41, an inner sheet 42 on the body side, and an outer surface of the liquid-absorbent structure 41 -10- 201108999. The leakage sheet 43 and the outer sheet 44 on the outer side of the leakage preventing sheet 43. The liquid-absorbent structure 41 includes a liquid-absorbent core material coated with a water-absorbent liquid-diffusing sheet, and a liquid-absorbent core material: fluff pulp or superabsorbent polymer particles. The length dimension of the liquid absorbing structure in the lateral direction X is smaller toward the virtual transverse center line Q, and is generally sand-leaked. That is, the liquid-absorbent structure 4 1 includes: the front and rear portions 45, 46 on the outer side of the direction Y, and the intermediate portion 47 between the front and rear portions 45, and the length dimension in the lateral direction X of the intermediate portion 47 is smaller than Front and rear parts 45, 46. The length dimension of the longitudinal direction Y of the liquid-absorbent structure 4 1 is set to 300 to 400 mm > preferably about 3 3 5 to 3 80 m. The inner sheet 4 2 and the sheet 43 are larger than the length dimension of the longitudinal direction Y of the liquid-absorbent structure 41, and are preferably set to about 3 to 50 mm to about 3 to 75 mm. In the longitudinal direction Y of the member 40, the liquid-absorbent structure is not present. That is, only the inner sheet 42 and the leak-proof sheet rear wing portions 48, 49 are formed. The sheet-flakes 43 are attached to the front and rear wing portions 48' to 49', and are joined to each other by means of a bonding means such as a hot-melt adhesive. As the inner sheet 42, a liquid permeable fibrous nonwoven fabric or the like can be used. For the sheet 42, for example, an air-flow type fiber non-woven fabric, a point-bonded type fiber non-woven fabric, a spunbonded nonwoven fabric, or the like having a mass per unit area of about 10 Å can be used. The leak-proof sheet 43 can be made of a moisture-permeable and liquid-impermeable plastic covering at least the entire sheet of the liquid-absorbent structure 41 with the sheet 43 to prevent the usable body 41-Q which is placed on paper or the like from becoming more and more versatile. Positioned in the longitudinal direction, 46 is set to be about leak-proof thin. The size of the species is 41, and the front 42 of 43 is also in combination with the ~2 -5 g/m2 type fiber film, urine, etc. - 201108999 Cloth weave volume of non-quality dimension of the surface of the surface of the liquid single pass through each and not as wet as: It can be leaked out of the system 44 1044 pieces of cloth thin urine thin paper out of the outside of the liquid. The body is 10~25g/rn2 of spunbond/melt blown/spunbond (SMS) fiber non-woven fabric, point-bonded fiber non-woven fabric, spunbonded fiber non-woven fabric, and the like. The pad hem 50 and the leak hem 60 are formed by the outer sheet 44. The outer sheet 44 of the liner hem 50 extending from the outer surface of the liquid-absorbent structure 41 is formed by the first and second sleeves 51, 61, respectively, and the first and second sleeves 5, 6 1 It is formed by folding in the lateral direction X of the liquid-absorbent structure 41. (Refer to Figs. 2 to 5) The liner hem 50 is formed with an inner edge 52 positioned inside the lateral direction X of the first sleeve 51 and an outer edge 53 on the opposite side. The pad elastic member 55 extending in the longitudinal direction Y is attached to the inner surface of the first sleeve 51 by being stretched, and the pad gather 50 is elasticized in the longitudinal direction Y. The side edge portion of the leakage preventing sheet 43 extending outward from the outer surface of the liquid absorbing structure body 4 in the lateral direction X is positioned between the inner surface of the first sleeve 51, that is, between the outer sheets 44. On the inner surface of the first sleeve 51, the outer sheet 44, the leakage preventing sheet 43, and the spacer elastic member 55 are joined to each other by a bonding means such as an adhesive to form a spacer bonding region 56. The pad joint region 594 extends continuously toward the longitudinal direction Y of the underarm member 40. The pad elastic member 55 includes first to third pad elastic members 5 5 a to 5 5 c which are separated from each other in the lateral direction X. The first pad elastic member 5 5 a extends along the outer edge 53 , the third pad elastic member 5 5 c extends along the inner edge 5 2 , and the second pad elastic member 55 b follows the elastic member 5 . Extend between 5 a ' 5 5 c. -12- 201108999 The elastic member is used to elasticize the pad hem 50 in the longitudinal direction Y, so that the pad hem is based on the inner edge 52, and the outer edge 53 is erected so as to be closely attached to the wearer. Near the roots of the thighs. Therefore, leakage of urine or the like from the wearer's leg can be prevented. The pad elastic member 5 5 is attached so as to overlap with the rear elastic member 33 attached to the lower end region 30 a of the rear waist member 30. Therefore, the lower end region 30 a can also be elasticized in the longitudinal direction Y, and the lower end region 3〇a can be closely attached to the wearer's buttocks curve. In particular, as in the present embodiment, in the disposable diaper members 20, 30 and the crotch member 40, which are formed of different members, the crotch member 40 is easier than the front and rear waist members 20, 30. Moving, the underarm area 13 is easy to move. However, the movement can be controlled by adhering the lower end region 3 Oa to the wearer. For each of the first to third pad elastic members 55a to 55c, an elastic yarn of about 470 to 1240 dtex can be used, and the elongation is set to be about 1.5 to 3.0 times. The first to third pad elastic members 55a to 55c are attached in the lateral direction X so as to be separated from each other by about 3 to 20 mm. By setting the separation distance to 3 mm or more, it is possible to prevent the elastic members from overlapping each other and to contact the wearer's skin, thereby preventing the marks from being creased on the skin. Further, by setting the separation distance to 20 mm or less, the pad hem 50 is surely erected to abut the wearer's skin. The first to third pad elastic members 55a to 55c' are provided at positions corresponding to the intermediate portion 47 of the liquid-absorbent structure 41, and are disposed outside the lateral direction X, and at positions corresponding to the front and rear portions 45, 46. Not installed, or only slightly extended. That is, substantially the '1st to 3rd pad elastic members 5 5a to 5 5c are formed so that the contraction force of the front and rear portions 45, 46' does not affect the liquid absorbing structure-13-201108999 Way to install. Therefore, the first to third pad elastic members 55a to 55c can prevent the front and rear portions 45, 46 from being pleated. The third pad elastic member 55c is separated from the side edge of the intermediate portion 47 of the liquid-absorbent structure 41 by about 5 to 15 mm toward the outside. By setting the exit size to 5 mm or more, in addition to preventing wrinkles from occurring in the intermediate portion 47, the rigidity of the intermediate portion 47 can be utilized so as not to impede the necessary contraction of the third spacer elastic member 55c. By setting the distance between the third pad elastic members 55 5 c to 15 mm or less, the side edge of the liquid-absorbent structure 41 can be pressed against the body side of the wearer by the necessary contraction of the elastic member. . The leakage hem 60 is formed by a second sleeve 61 in which the outer sheet 44 extending further from the inner edge 52 of the pleat 50 is folded. The outer sheet 44 is joined to each other on the inner surface of the second sleeve 61, and includes a proximal end edge 62 which is continuous toward the inner edge 52, and a distal end edge 63 which is located closer to the body side than the proximal edge 62. The inner edge 52 and the proximal edge 62 are referred to substantially as the same portion. Therefore, the proximal edge 62 and the inner edge 52 are joined to the exterior sheet 44 via the leakage preventing sheet 43 in the entire longitudinal direction γ. The barrier elastic member 64 extending in the longitudinal direction Y is retractably attached to the second sleeve 61 in an extended state, and the leak preventing hem 60 is elasticized in the longitudinal direction Y. The barrier elastic member 64 includes four elastic members of the first to fourth barrier elastic members 64a to 64d from the distal edge 63 toward the proximal edge 62. As the first to fourth barrier elastic members 64a to 64d, an elastic yarn of about 470 to 1 240 dtex can be used, and the elongation can be set to about 1.5 to 3.0 times -14 to 201108999. The first to fourth barrier elastic members 64a to 64d are attached so as to be separated from each other by about 3 to 20 mm in the lateral direction X'. By setting the separation distance to 3 mm or more, it is possible to prevent the elastic members from overlapping and coming into contact with the wearer's skin to prevent wrinkles from remaining on the skin. Further, by setting the separation distance to 20 mm or less, the leakage hem 60 is surely erected to abut the wearer's skin. The fourth barrier elastic member 64d is separated from the inner edge 52' of the pad hem 50 toward the distal edge 63 side by about 5 mm or more. By setting the separation distance to 5 mm or more, the inner edge 52 and the proximal edge 62 can be adhered to the wearer's thigh root. The first to fourth barrier elastic members 64a to 64d are located outside the lateral direction X of the intermediate portion 47 of the liquid-absorbent structure 41, and extend toward the front and rear portions 45, 46. Between the proximal edge 62 and the distal edge 63 of the leak preventing hem 60, that is, between the third barrier elastic member 64c and the fourth barrier elastic member 64d, a virtual shape extending in the longitudinal direction Y is formed. Bending line 6 5. The leakage hem 60 is folded along the virtual meander line 65 in a state where the barrier elastic member 64 is not contracted, so that the distal edge 63 is positioned outward of the lateral direction X from the virtual bending line 65. The folded leak preventing hem 60 overlaps the front and rear portions 45, 46' of the liquid-absorbent structure 41 on the body side thereof, and does not overlap at the intermediate portion 47, and is positioned outside the lateral direction X thereof. The bent leak preventing hem 60 is joined to the inner sheet 42 by the joining means such as an adhesive in the front and rear portions 45, 46 of the liquid absorbing structure 41, and the front and rear joining regions 66, 67 are formed. The front and rear joint regions 66, 67 extend in the longitudinal direction -15 - 201108999. In the disposable diaper as described above, the distal edge 63 of the leak preventing hem 6 is erected separately from the inner sheet 42 for use. While the leg roots are closely attached, the outer edge 53 of the pad hem 50 is outside the lateral direction X of the distal edge 63 and is in close contact with the wearer's thigh. That is to say, by using these leak-proof hem 60 and the cushion hem 50, a two-layer hem is formed to prevent leakage of urine or the like from the leg circumference. The elongation stress in the longitudinal direction Y of the above-mentioned leakage hem 60 is greater than the elongation stress in the longitudinal direction Y of the liner hem 50. With such formation, the leak-reducing hem 60' on the inner side of the pad pleat 50 can be in surface contact with the wearer's thigh. Further, these hem 50, 60 are separated from each other, and are in contact with the wearer to prevent leakage of urine or the like in two stages. The elongation stress of the spacer hem 50 and the longitudinal direction Y of the leakage hem 60 can be set according to the number or thickness of each elastic member, and the magnitude relationship of the elongation stress is not limited to the above, and can be appropriately Settings. The length dimension from the proximal edge 62 of the leakage hem 60 to the distal edge 63 is about 260 to 300 mm, preferably about 2 90 mm, from the inner edge 52 of the pad hem 50 to the outer edge 53. The length dimension is about 200~3 50mm, preferably about 23 0~2 70mm, and the length dimension of the leakage hem 60 is greater than the length dimension of the pad hem 50. By this dimensional relationship with the above-described elongation stress, as shown in Fig. 6, the leakage hem 60 extends from the inner side of the liner hem 50. When viewed from the inside of the disposable diaper 1 , only the leg openings formed by the leak-resistant hem 60 are visible, and the pad pleats 50 are obscured by the leak-proof hem 60 and are invisible. That is to say, since only one leg opening -16-201108999 can be confirmed, it is easy to wear as long as the wearer's leg is passed. In addition, because there are two layers of hem, it is safer for the wearer or his caregiver to know that it can prevent leakage of urine and the like. The leakage hem 60 is joined to the folded region by the front and rear joint regions 66, 67 at a position overlapping the front portions 45, 46 of the liquid-absorbent structure 41, so that even when the barrier elastic member 64 contracts, the distal end The edge 63 will not stand upright. Therefore, the liquid-absorbent structure 41 can always contact the wearer's body in a wide range, and a gap is not formed between the body and the body, so that the flow of urine or the like can be prevented from leaking from the waist opening or the like. Further, by setting the length dimension of the longitudinal direction Y of the front joint region 66 to be larger than the rear joint region 67, the liquid-absorbent structure 41 can be closely attached to the wearer's body on the front waist region 11 side. On the side of the rear waist region 12, the standing region of the leak-resistant hem 60 can be increased. The fourth barrier elastic member 64d of the barrier elastic member 64 is positioned between the proximal edge 62 and the virtual bending line 65, so that the rigidity between the barrier elastic members 64d can be increased, and the leakage preventing hem 60 can be erected. The distal edge 63 is brought into contact with the vicinity of the wearer's groin. The longitudinal direction Y of the disposable diaper of the present invention has a length of about 400 to 5 20 mm, preferably about 41 0 to 45 mm, and is set to 415 mm in the present embodiment. Similarly, the longitudinal dimension Y of the underarm member 40 has a length of about 3 70 to 45 mm, preferably about 3 5 0 - 3 to 80 mm, and is set to about 375 mm in the present embodiment. The length dimension of the longitudinal direction Y of the waist member 20 before forming the front waist region 11 is about 80 to 130 mm', preferably about 85 to 125 mm, and is about 90 mm in this embodiment. The length dimension of the longitudinal direction Y of the waist member 30 after forming the rear waist region 1 2 is about 15 〇 9 0 m m, preferably about -17-201108999 155 to 185 mm, and is about 155 mm in this embodiment. The crotch member 40 overlaps with a portion of the front and rear waist members 20, 30 of the disposable diaper 10, and the front waist member 20 overlaps with the length dimension of the longitudinal direction Y of the liquid-absorbent structure 41 by about 70 mm. At the rear waist member 30, it is overlapped by about 80 mm. That is, the liquid-absorbent structure 4 1 occupies about 45 % of the length dimension of the longitudinal direction Y of the front waist member 20 and about 24 % of the back waist member 30, respectively. Further, at these overlapping positions, front and rear joining regions 66, 67 are formed, and the length in the longitudinal direction Y is set to be about 60 mm and about 45 mm, respectively. The length dimension of the longitudinal direction Y of the front joint region 66 is set to be about 45 to 70% of the length dimension of the longitudinal direction Y of the front waist region 11, preferably about 55 to 67%, and the longitudinal direction of the joint region 67. The length dimension of the direction Y is set to be about 30 to 50% of the length dimension of the longitudinal direction Y of the rear waist region 12, particularly about 29%. The front and rear joint regions 66, 67 are formed such that the front and rear elastic members 23, 33 of the front and rear waist members 20, 30 are overlapped. That is, the portion where the front and rear elastic members 2 3, 3 3 overlap with the liquid-absorbent structure 4 1 is disposed apart from the virtual longitudinal center line P-P in such a manner that the contraction force does not act. However, the front and rear elastic members 23, 33 extend from the side edges 24, 34 toward the virtual longitudinal center line P-P, at least until they intersect the front and rear joint regions 66, 67. Therefore, it is possible to reliably press the front and rear joint regions 66, 67 against the body side of the wearer, thereby preventing a gap from being formed between the liquid-absorbent structure 41 and the wearer. The disposable diaper Y of the present invention has a small length dimension in the longitudinal direction Y, and is particularly suitable for use in disposable diapers for infants and toddlers. In the case where the length dimension of the longitudinal direction γ of the disposable diaper 10 -18-201108999 is set to be small, it is preferable not to reduce the amount of absorption of urine or the like in order to reduce the amount of absorption of urine or the like. As a result, the ratio of the liquid-absorbent structure 4 1 to the disposable diaper 10 becomes large as described above. Since the rigidity of the liquid-absorbent structure 41 is generally large, the front and rear waist members 20, 30 may not easily adhere to the wearer's body once the proportion of the liquid-absorbent structure 41 becomes large. However, in the present embodiment, the liquid-absorbent structure 41 can be adhered to the wearer in the front and rear waist regions 1 1 and 12 by forming the front and rear joint regions 6 6 and 6 6 , and the disposable diaper 10 can be prevented from coming off. At the same time, it is also possible to prevent a gap from being formed between the wearer and the wearer. The length dimension of the longitudinal direction of the rear waist member 30 is set to be larger than the length dimension of the front waist member 20. In the disposable diaper 10, as shown in Figs. 1 and 6, the lower end region 30a of the rear waist member 30 extends toward the crotch region 13 side and has a function of covering the buttocks of the wearer. Preferably, the rear waist member 30 extends over the longitudinal direction Y and covers the leg openings. That is, the lower end region 30a of the rear waist member 30 preferably extends from the end edge of the waist opening across the distal edge 63 of the leak preventing hem 60 toward the underarm region 13 side. With such formation, the lower end region 30a covers the wearer's buttocks, and even if the excrement leaks from the leg opening, it can withstand the excrement. Therefore, it is possible to prevent excretion from adhering to the wearer or clothes. In particular, when the disposable diaper is to be taken off from the sleeping infant or the like, the excrement is easily leaked from the opening of the leg, but it can be prevented. The front and rear outer elastic regions 27, 37 which are elasticized by the front and rear elastic members 23, 33 are formed on the outer side Y of the crotch member 40 in the longitudinal direction Y, and the longitudinal direction Y of the front and rear outer elastic regions 2, 3 7 ' The system is formed in the front and rear of the 19-201108999 side elastic area 2 8,3 8 . A portion of the anterolateral elastic region 27 includes a front wing portion 48 that is externally located further outward than the rear wing portion 49. The elongation stress of the front and rear outer elastic regions 27, 37 is smaller than the elongation stress of the front and rear inner elastic regions 2, 38. In other words, by increasing the elongation stress of the front and rear inner elastic regions 28, 38, the liquid-absorbent structure 41 of the crotch member 40 can be adhered to the body side of the wearer, and the disposable diaper can be prevented from falling off. In order to elasticize the front and rear waist members 20, 30 in the lateral direction X, a plurality of elastic yarns are used. However, the present invention is not limited thereto, and various elastic members such as an elastic sheet or a belt-shaped elastic body may be used. Similarly, a wide variety of elastic members can be used for the pad elastic member 55 and the barrier elastic member 64. The length of the intermediate portion 47 in the lateral direction X of the liquid-absorbent structure 41 is smaller than that of the front-rear portions 45 and 46. However, the intermediate portions 47 and the front-rear portions 45 and 46 may have the same length dimension in the lateral direction X. By. [Simple description of the drawings] Fig. 1 is a perspective view of a paper diaper. Figure 2 is a developed plan view seen from the body side of the disposable diaper. Fig. 3 is a sectional view taken along line III-III of Fig. 2; Fig. 4 is a sectional view taken along line IV-IV of Fig. 2; Fig. 5 is an exploded assembly view of Fig. 2. Figure 6 is a plan view of a paper diaper. [Description of main component symbols] 1 0 : Diaper: (wearing articles) -20- 201108999 11: 12: 13: 20: 23: 27: 28: 30: 30a 33 : 37 : 38 : 40 : 41 : 45 : 46 : 47 : 50 : 52 : 53 : 55 : 60 : 62 : 63 : Front waist area Rear waist area Underarm area Front waist member Front elastic member Front outer elastic area Front inner elastic area Rear waist member: Lower end area Rear elastic member Rear outer elastic region rear inner elastic region underarm member liquid absorbing structure front rear middle portion pad hem inner edge outer edge pad elastic member leak pleat proximal end distal edge-21 201108999 64 : barrier elasticity Member 65: virtual bending line 6 6 : front joint region 6 7 · rear joint region · X: transverse direction Y _ · longitudinal direction -22