201225937 六、發明說明： 【發明所屬之技術領域】 本發明是關於一種用後即棄式穿著用物品，更詳而言 之，是關於一種主要以新生兒作爲對象的開放型的用後即 棄式紙尿褲、用後即棄式如廁學習褲、用後即棄式失禁短 褲、用後即棄式生理用短褲等的開放型的用後即棄式穿著 用物品。 【先前技術】 以往’以新生兒作爲對象的用後即棄式穿著用物品爲 眾所周知。例如在專利文獻1揭示有一種包含：透液性的 表面薄片：不透液性的裏面薄片；介設在表裏面薄片間的 吸液性芯；朝腰圍方向延伸的一對的穿用墊：以及從褲檔 域的兩側部朝前後腰域延伸的複數條的彈性構件之用後即 棄式紙尿褲》 [先前技術文獻] [專利文獻] [專利文獻1]日本特許3343 1 99號公報 【發明內容】 [發明所欲解決之課題] 專利文獻1所揭示的用後即棄式紙尿褲，在尿布本體 的即端部的預定部位，具有由比吸液性芯鄰接的部位更薄 -5- 201225937 或吸收液性芯不存在的情形所形成的往尿布的橫向延伸的 彎折引導部。 藉由沿著彎折引導部及穿用墊的上緣部將尿布本體的 前端部朝外側翻折的方式，可露出使用者的新生兒的肚臍 ，且不會妨礙其腹式呼吸。又，由於是藉由位在前述前端 部的外面的卡止手段，可將該折返部位固定在尿布本體， 所以可確實露出新生兒的肚臍。再者，藉由從腰域的兩側 部朝前後腰域延伸的複數條的彈性構件，可使該區域與使 用者的腿圍貼合。 可是，在穿用墊所爲的卡止之後，由於沿著彎折引導 部及穿用墊的上緣部朝向外側彎折尿布本體的前端部，所 以肚臍位在彎折引導部的附近或其下方時，必須卸下穿用 墊的卡止，調整尿布的位置。又，爲了防止在外側的被彎 折部位的搖晃，除了穿用墊之外爲必須要有卡止該該彎折 部位用的手段，所以卡止操作繁雜。再者，由於具有在卡 止穿用墊之際，藉由延伸出到彎折部位的附近的複數條的 彈性構件的收縮力，從前腰域的彎折部位將下方的區域及 褲檔域全體往下方，亦即，朝向後腰域拉引，而使彎折部 位具有彎曲狀，所以會有安裝位置偏移，在尿布本體的腿 開口緣部沒有充分與使用者的腿部貼合的狀態下，被安裝 的虞慮。 本發明的課題在於以往的發明的改良，且是以提供一· 種，藉由比較簡易的操作，可使尿布本體的前腰域確實往 外側彎折，並確實與使用者的身體貼合，並且在穿用時， -6- 201225937 彎折部位不會彎曲的用後即棄式紙尿褲。 [解決課題用的手段] 爲了解決前述課題，本發明的對象是具有：縱軸及橫 軸；肌膚對向面及與此對向的非肌膚對向面，且包含：具 有前腰域、後腰域、在前述前後腰域間朝前述縱軸的方向 延伸的褲檔域、以及從前述褲檔域朝前述前後方向延伸的 吸收性芯之尿布本體；以及將前述前後腰域的兩側緣部彼 此相互連結的緊固系統之用後即棄式穿著用物品。 本發明特徵之處，是前述吸收性芯在前述前腰域具有 朝前述橫軸的方向延伸的彎折引導部，在前述褲檔域的兩 側部形成有沿著前述兩側部可伸縮的側面彈性域，在前述 側面彈性域形成有從前述彎折引導部的後端緣附近朝向前 述後腰域延伸，且比其他的部位收縮率低的低彈性部。 本發明的實施態樣之一，其中，藉由將前述彎折引導 部朝向前述褲檔域的非肌膚對向面或肌膚對向面彎折的方 式所形成的彎折線，是以與前述橫軸幾乎並行的方式呈直 狀延伸。 本發明的另一實施態樣之一，其中，於前述側面彈性 域，在前述褲檔域配置有朝前述縱軸的方向延伸的複數條 的第1彈性雯素；以及與前述第1彈性要素並行，朝前述縱 軸的方向延伸的複數條的第2彈性要素，在前述低彈性部 ，僅配置有前述第1及第2彈性要素中的前述第1彈性要素 201225937 本發明的另一實施態樣之一，其中，在前述側面彈性 域配置有朝前述縱軸的方向延伸的複數條的彈性要素，前 述吸收性芯在前述彎折引導部的附近具有朝前述橫軸的方 向延伸的凸出部，前述凸出部的剛性比前述吸收性芯的這 以外的部位的剛性更高，在位於前述彈性要素中的前述凸 出部的附近的部分形成有前述低彈性部。 本發明的另一實施態樣之一，其中，在側面彈性域配 置有朝前述縱軸的方向延伸的複數條的彈性要素，在位於 前述彈性要素中的前述前腰域側的部分，藉由將壓花加工 部間歇性的設在前述縱軸方向的方式形成前述低彈性部。 本發明的另一實施態樣之一 ’其中，在前述側面彈性 域配置有朝前述縱軸的方向延伸的複數條的彈性要素，在 位於前述彈性要素中的前述前腰域側的部分’設置以面狀 塗布接著劑而成的固定部’藉此形成前述低彈性部。 本發明的另一實施態樣之一’其中’前述緊固系統是 由：第1黏扣系統與第2緊固系統所構成’前述第1黏扣系 統是由：被設置在從前述後腰域的兩側緣朝前述橫軸的方 向延伸的一對的帶式扣合件舌片的前述肌膚對向面的第1 黏扣要素、與位在前述前腰域的前述非肌膚對向面側的第 2黏扣要素所構成，前述第2緊固系統具有：前述一對的第 1黏扣要素與位在前述前腰域的前述肌膚對向面的第3黏扣 要素》 本發明的另一實施態樣之一，其中，前述緊固系統是 由：第1黏扣系統、與第2緊固系統所構成，前述第1黏扣 -8- 201225937 系統是由：被設置在從前述後腰域的兩側緣朝前述橫 方向延伸的一對的帶式扣合件舌片的前述肌膚對向面 1黏扣要素、與位在前述前腰域的前述非肌膚對向面 第2黏扣要素所構成，前述第2緊固系統具有：前述一. 第1黏扣要素與在前述前腰域的前述非肌膚對向面， 前述第2黏扣要素的下方的第3黏扣要素。 本發明的另一實施態樣之一，其中，在前述側面 域，前述低彈性部的收縮率約70〜75%，由前述低彈 以外的部分所形成的高彈性部的收縮率約5 0〜6 0 %。 [發明效果] 根據本發明，在尿布本體的兩側部的側面彈性域 成有從彎折引導部的後端緣附近朝向前述橫軸延伸， 其他的部位，收縮率低的低彈性部。藉此，在尿布的 時由於沿著彎折引導部所形成的彎折部位，形成不會 的直狀，所以尿布本體的安裝位置不會偏移，可在比 易對齊的狀態，安裝尿布。 【實施方式】 [實施發明用的形態] <第1實施形態> 如圖1及2所示，尿布10具有縱軸P及橫軸Q，且 :具備肌膚抵接面側及與這個對向的非肌膚抵接面側 腰域1 1、後腰域12、及位在前後腰域1 1、12間的褲檔 軸的 的第 側的 對的 位在 彈性 性部 ，形 且比 安裝 彎曲 較容 包含 '刖 域13 -9- 201225937 之尿布本體14;以及從尿布本體14的後腰域12的兩側緣 12a、12b朝橫軸Q的方向的外方延伸的.一對的帶式扣合件 舌片15、16。在帶式扣合件舌片15、16的肌膚對向面’配 置有由機械平面扣具的鉤群所形成的第1黏扣要素17。又 ，在前腰域11的外面隔著熱熔接著劑（未圖示）安裝有由 可脫離地卡止帶式扣合件舌片15、16的第1黏扣要素17用 的朝橫軸Q的方向延伸的機械平面扣具的環群所形成的第 2黏扣要素1 8。 如圖1〜4所示，尿布本體14包含：由纖維不織布、多 孔塑膠薄膜、該等的層積薄片等所形成，位在肌膚抵接面 側的透液性的頂面薄片20 ;形成尿布1 0的外形，由透濕性 塑膠薄膜、纖維不織布、該等的層積薄片等所形成，且位 在非肌膚抵接面側的不透液性的背面薄片2 1 ;以及由短纖 紙漿與超吸收性聚合物粒子的混合等所形成，且被介裝在 頂面薄片20與背面薄片21之間的吸收性芯22。頂面薄片20 與背面薄片21，是從吸收性芯22的周緣部延出，且經由被 塗布在該延出部位的兩薄片20、21之中的至少任一方的內 面的熱熔接著劑（未圖示）彼此接合。又，吸收性芯22雖 未圖示，也可藉由薄紙等的擴散薄片被包著》 頂面薄片20是由質量15〜50g/m2，理想爲20〜35g/m2 ，纖維密度0.01〜0.04g/cm3，理想爲0.025〜0.035g/cm3的 範圍的氣流纖維不織布、紡黏纖維不織布所形成。又，背 面薄片21是由質量10〜40g/m2，理想爲15〜30g/m2，纖維 密度0.06〜O.lg/cm3，理想爲0.07〜0.09g/cm3的範圍的紡 -10- 201225937 黏不織布等所形成。 吸收性芯22具有：前後端緣22a、22b、與在該等之間 ’朝縱軸P的方向延伸的兩側緣22c、22d。又，在吸收性 芯22，形成有在前腰域1 1朝橫軸Q的方向延伸的彎折引導 部2 4。彎折引導部2 4，是藉由將吸收性芯2 2設成比其他的 部位薄的方式所形成的凹狀溝。由於在吸收性芯2 2形成有 彎折引導部24，所以如後述，可經由彎折引導部24將前腰 域1 1朝外側彎折。 彎折引導部24是在縱軸P的方向具有所需要尺寸的寬 幅的凹狀溝，由於其前側緣24a與後側緣24b的分開尺寸， 亦即，縱軸P的方向的長度尺寸L1具有後述的本發明效果 ，所以理想爲1.0〜15.0mm，更理想爲5.0〜10.0mm。彎折 引導部24是被形成在與位在尿布本體14的外面的第2黏扣 要素18的下側緣18a重疊的位置，在與尿布本體14的外面 的彎折引導部24對應的部位，亦即，在第2黏扣要素18的 下側緣18a上及其附近，形成有在尿布10的外面觀看，可 確認彎折引導部24的位置的彎折引導線25。彎折引導線25 也可藉由施予與第2黏扣要素18不同的色彩，使用者及穿 用補助者可容易看見彎折引導部24的位置，也可藉由黏貼 帶片的方式形成。 此外，如圖3所示，彎折引導部24雖是藉由將吸收性 芯22的肌膚抵接面作成凹狀的方式所形成的凹狀溝，可是 也可將吸收性芯22的非肌膚抵接面作成凹狀而形成。又， 彎折引導部24也可藉由除掉吸收性芯22的一部分的方式所 -11 - 201225937 形成，也可在該部位藉由對吸收性芯22進行壓縮變形的方 式所形成。再者，在彎折引導部24，將吸收性芯22的厚度 作成與其他的部位相同的厚度，也可藉由將其密度作成比 其他的部位低的方式所形成。 在頂面薄片20與背面薄片2 1之間，配置有由不透液性 且透濕性的塑膠薄膜所形成的防漏薄片26，並經由被塗布 在兩薄片20、21之中的任一方的內面的熱熔接著劑（未圖 示）被固定。又，在尿布1〇的肌膚對向面的吸收性芯22的 橫向X的外方，安裝有相對於縱軸P對稱的一對的隔離薄 片27。 尿布本體14進一步包含：與縱軸P的方向對向，朝橫 軸Q的方向延伸的前後端部28、29 ;以及與橫軸Q的方向 對向，在褲檔域13朝縱軸P的方向延伸的兩側部30、31。 在尿布10的穿用時，藉由卡合一對的帶式扣合件舌片15、 16的第1黏扣要素17與位在前腰域1 1的外面的第2黏扣要素 18，畫成腰開口 33及一對的腿開口34(參閱圖1)。 前後端部28、29是藉由從吸收性芯22的前後端緣朝縱 軸P的方向的外方延出的頂面薄片20、防漏薄片26、背面 薄片2 1及隔離薄片27相互疊合的方式所形成。又，兩側部 30、3 1是藉由從吸收性芯22的兩側緣朝橫軸Q的方向的外 方延出的頂面薄片20、防漏薄片26、背面薄片21及隔離薄 片27相互疊合的方式所形成。又，背面薄片21與隔離薄片 27，在前後腰域11、12形成有從形成兩側部30、31的頂面 薄片20與防漏薄片26的兩側緣進一步朝橫軸q的方向的外 -12- 201225937 方延出，且相互疊合的前後方側部短纖3 5、3 6。在形成後 方側部短纖36的背面薄片21與隔離薄片27的兩側緣部間， 介裝有一對的帶式扣合件舌片15、16的固定部15a、16a， 並經由被塗布在兩薄片21、2 7的內面的熱熔接著劑（未圖 示）被固定。又，在從後方側部短纖36的側緣（後腰域1 2 的側緣12a、12b )朝橫軸Q的方向的外方延伸的帶式扣合 件舌片15、16的自由部15b、16b，設有第1黏扣要素17。 隔離薄片27具有：形成兩側部30、31的一部分的近位 緣部37;在前後腰域11、12，被固定在頂面薄片20及背面 薄片21的肌膚對向面的前後固定端部38、39;以及在前後 固定端部38、39間朝縱軸P的方向延伸，藉由將隔離薄片 27的內側緣朝內方翻折而形成的遠位緣部40。在防漏薄片 26的兩側緣的橫向X的外方，朝縱軸P的方向延伸的複數 條的條狀或線狀的第1及第2彈性要素41、42，經由熱熔接 著劑（未圖示）可收縮地安裝在隔離薄片27的近位緣部37 與背面薄片2 1的兩側部之間。又，在遠位緣部40，可收縮 地配設有朝縱軸P的方向延伸的兩條的條狀或線狀的側邊 彈性要素44。遠位緣部40，在尿布1 0的穿用狀態，藉由側 邊彈性要素44的收縮作用，從頂面薄片20的肌膚對向面分 開，而形成防止排泄物的側漏用的一對的防漏側邊45。 在尿布本體14的兩側部30、31配設有第1及第2彈性要 素4丨、42，至少在縱軸P的方向形成有可彈性的伸縮的側 面彈性域43。第1彈性要素41，在褲檔域13的全域由朝向 縱軸P的方向延伸的兩根彈性絲所構成，又，第2彈性要素 -13- 201225937 42位在第1彈性要素41間，並與該等並行，且由從褲檔域 1 3的後腰域1 2側延伸到橫軸Q的前腰域1 1側的兩根彈性絲 所構成。又，側面彈性域43是被區分成與僅配設有第1彈 性要素4 1的其他的部位相比收縮率及伸長應力低的低彈性 部46、以及配置有第1及第2彈性要素41、42這個以外的部 分（高彈性部4 7 )所區分。 在前端部28的頂面薄片20的肌膚對向面，第1黏扣要 素17可卡止，且在頂面薄片20設有藉由施予壓花加工所形 成的第3黏扣要素48 »第3黏扣要素48是由相對於縱軸P及 橫軸Q傾斜延伸的複數條的第1及第2凹狀線49、50交叉成 格子狀者，第1及第2凹狀線49、50的形狀、大小及互相的 交叉角度等可適當自由地選擇。此外，只要具有與第1黏 扣要素17的所需要的卡止強度，第3黏扣要素48也可藉由 由沒有進行壓花加工，且爲這類的物品通常被使用的氣流 不織布、紡黏不織布等構成的頂面薄片的一部分所形成。 具有這類構成的尿布10，除了由第1黏扣要素17與第2 黏扣要素1 8構成的第1緊固系統之外，如圖4所示，具有第 2緊固系統，該系統係藉由沿著彎折引導部24，將前腰域 1 1朝向外側彎折，將第1黏扣要素1 7卡止在被形成在前端 部28的肌膚對向面的第3黏扣要素48的方式，在將前腰域 11朝向褲檔域13的非肌膚對向面折疊的狀態下穿用尿布10 。藉由第2緊固系統穿用尿布10時，由於使用者的腹部露 出，所以使用者包含未成熟兒的新生兒時，藉由前腰域11 所爲的束緊，不會有妨礙其腹式呼吸的情況。尤其，新生 -14- 201225937 兒時，肚臍及其周邊未十分成熟，雖然即使是前腰域η所 爲的稍微的束緊也會有造成刺激的虞慮，但也可避免這樣 的情形。 此外，在由第1黏扣要素17與第2黏扣要素18構成的第 1緊固系統，只要其具有所需要的剝離強度，也可將第1黏 扣要素17換成鉤群，並塗布接著劑而形成。此時，爲了保 護第1黏扣要素17，也可以在第1黏扣要素17的表面塗布矽 的隔片進行被覆。 帶式扣合件舌片1 5、1 6是例如由：塑膠薄膜、纖維不 織布、該等的層積、與牛皮紙等比較剛性及拉伸強度高的 薄片材料所形成爲理想。又，只要能達成本發明所需要的 效果，也可不使用帶式扣合件舌片15、16，將被設在後方 側部短纖36的第1黏扣要素17直接可脫離地卡合在第2黏扣 要素1 8。 圖5爲沿著彎折引導部24將前腰域11朝向尿布10的外 側彎折的狀態的展開俯視圖，圖6表示藉由第2緊固系統， 穿用尿布10之際的樣子的立體圖。此外，圖5中，爲了方 便說明，去除隔離薄片27，第1及第2彈性要素41、42是以 實線表示。 如圖5所示’沿著彎折引導部24，將前腰域1 1朝向尿 布1 〇的外側彎折時，在本發明，藉由將側面彈性域43區分 成低彈性部46與高彈性部47，在與使用者的腹部對向的彎 折引導部24的略中央部，朝橫軸Q的方向延伸的彎折線52 不會有彎曲形狀，而以與尿布1〇的橫軸q大致並行的方式 -15- 201225937 延伸。 亦即，在第1及第2彈性要素41、42爲了使尿布1〇的腿 開口緣部與使用者的腿圍貼合所需要的伸長力之處，側面 彈性域43全體具有均等且所需的收縮率時，藉由其收縮作 用，會有將彎折引導部24附近的褲擋域1 3的兩側部3 0、3 1 往後方拉伸，使彎折線52呈現彎曲狀的虞慮。這樣的情形 ，藉由與使用者的下腹部抵接的前端緣（彎折線5 2 )彎曲 ，在穿用中容易發生位置偏移，並且在兩側部30、31發生 皺紋，排泄物會有從該部位漏出的虞慮。 然而，在本實施形態的情況，在側面彈性域43，藉由 形成有在彎折引導部24附近收縮率比較低的低彈性部46， 則彎折引導部24附近的區域不會有因第1及第2彈性要素41 、‘ 42的收縮力往後方被拉伸的情形。因此，如前述，由於 彎折線52沒有呈現彎曲狀，而沿著彎折引導部24與橫軸Q 大致並行延伸，所以在安裝時，預先對齊的安裝位置不會 有偏移的情形。 又，當彎折線52呈現彎曲狀時，爲了防止前述不利， 在穿用時，穿用補助者必須以兩手抓住其兩側，朝橫軸Q 的方向拉伸而使其伸長，可是穿用補助者一個人要如此維 持彎折線52朝向橫軸Q的方向伸長的狀態下，將第1黏扣 要素17卡止在第3黏扣要素48並不容易。 在本實施形態，如圖6所示，由於彎折線52與橫軸Q 幾乎並行延伸，所以不需要從兩側將彎折線52朝橫軸Q的 方向拉伸，經由彎折引導部24彎折之後，在預先定位的安 -16- .201225937 裝位置，可直接將第1黏扣要素17卡止在第3黏扣要素48。 在本實施形態，雖然也會因尿布10全體的大小而不同 ，可是前腰域11的縱向Y的長度尺寸L2約60mm時，低彈性 部4 6的縱向Y的長度尺寸L3同樣約60mm爲理想。前腰域1 1 與低彈性部46的長度尺寸L2、L3大致相同時，對於彎折 狀態的前腰域11，高彈性部47的伸縮力不會作用，互相在 前後方向重疊的該等的部位由於會因第2彈性構件42的伸 縮力往後方被拉伸的虞慮。又，這樣的情況，高彈性部47 的縱向Y的長度尺寸L4約140mm，且與位在低彈性部46的 吸收性芯22的兩側緣22c、22d與第1彈性要素41中的最內 側的彈性構件53的橫軸Q的方向的分開尺寸w約25mm爲理 想。吸收性芯2 2與形成尿布本體1 4的薄片構件相比爲剛性 高（所謂的半剛性）者，彈性要素4 1、4 2與吸收性芯2 2接 近時’由於其伸縮力被抑制，而會有不能作用所需要的伸 縮力的虞慮。 又，在第1及第2彈性要素41、42，雖可適當選擇在該 類的物品所使用的以往眾所周知者，可是也可例如在第1 彈性要素41藉由粗細約450〜95 Odtex，理想爲伸長倍率約 2.2倍的彈性絲，在第2彈性要素42粗細約450〜950dtex， 伸長倍率約1 .9倍的彈性絲所形成。具體而言，在本實施 形態，使用粗細約470dtex的彈性絲作爲第}及第2彈性要 素41、42時’低彈性部46的收縮率爲70〜75%，高彈性部 47的收縮率爲50〜60%。此時，在低彈性部46，雖貼合性 比設在通常所使用的腿開口緣部的彈性要素更低，可是在 -17- 201225937 高彈性部47具有比較高的伸長應力，作爲側面彈性域43全 體的伸長應力，由於是在該類種的尿布具有通常所使用的 腿開口緣部的伸長應力者，所以不會有排泄物側漏的虞慮 <低彈性部及高彈性部的收縮率的測定方法> 首先’在尿布10的穿用狀態（第1及第2彈性要素41、 42收縮後的狀態），於低彈性部46的第1彈性要素41的最 前方端S ;位在低彈性部4 6與高彈性部4 7的邊界的部位， 亦即位在第2彈性要素42的端部42a附近的部位T ;高彈性 部47的第1及第2彈性要素41、42的最後方端U分別標示印 記。接著’測定最前方端S與位在邊界的部位T之間的縱軸 P的方向的長度尺寸；以及部位T至最後方端U之間的縱軸 P的方向的長度尺寸，並分別作爲低彈性部4 6的收縮時的 長度尺寸N1 ’高彈性部47的收縮時的長度尺寸N2。 接著’在展開尿布1 0的狀態（第1及第2彈性要素4 1、 42伸長後的狀態），同樣測定最前端s與部位T之間的縱軸 P的長度尺寸；與部位T至最後方端U之間的縱軸P的方向 的長度尺寸’並分別作爲低彈性部46的伸長時的長度尺寸 N3 ’高彈性部47的伸長時的長度尺寸N4。分別將由該等 的測定方法所測定的値代入低彈性部46的收縮率=低彈性 部46的收縮時的長度尺寸NI +低彈性部46的伸長時的長度 尺寸N3xl〇〇 ( % ) ’高彈性部47的收縮率=高彈性部47的 收縮時的長度尺寸N2 +高彈性部47的伸長時的長度尺寸N4 -18- 201225937 x 1 00 ( % )的計算式進行計算，並以其値作爲低彈性部46 及高彈性部47的收縮率。 <第2實施形態> 圖7是與表示本發明的第2實施形態的圖2同樣的縱剖 視圖。由於第2實施形態的尿布1 0的基本態樣與第1實施形 態的這個同樣，所以以下僅針對不同的點進行說明。此外 ，在圖7，爲了說明的方便，去除隔離薄片27，並以實線 表示第1彈性要素41。 本實施形態中，在尿布本體1 4的兩側部3 0、3 1的側面 彈性域43，分別僅配置有雨條第1彈性要素4 1。又，褲檔 域1 3的前腰域1 1側的吸收性芯2 2的一部分比第1實施形態 的這個在橫軸Q的方向寬幅更寬，並形成有朝橫軸Q的方 向的外方延出的一對的凸出部5 5。吸收性芯2 2的凸出部5 5 具有比吸收性芯22的其他的部位高的剛性，凸出部55與第 1彈性要素4 1的最內側的彈性要素5 3的端部5 3 a的橫軸Q的 方向的分開尺寸W2約5.0mm。 如此，在褲檔域1 3的兩側部3 0、3 1全域配設有第1彈 性要素41，基本上側面彈性域43具有均一的收縮率及伸長 應力。可是，在吸收性芯22的凸出部55的附近區域，第1 彈性要素41與該凸出部55接近，且，凸出部55具有比較高 的剛性，所以抑制第1彈性要素4 1所爲的收縮力，在側面 彈性域43形成有收縮率及伸長應力比其他的部位更低的低 彈性部46，因此，由於側面彈性域43被區分成低彈性部46 -19- 201225937 以及與其比較，收縮率及伸縮應力高的高彈性部4 7，所以 可達成與第1實施形態同樣的效果，並且，吸收性芯22具 有凸出部55，藉此使吸液性芯22全體的吸收面積增加，其 體液吸收性能提昇。 <第3實施形態> 圖8是與本發明的第3實施形態的尿布10的圖2同樣的 展開俯視圖。由於第3實施形態的尿布1 〇的基本態樣與第1 實施形態的這個同樣，所以以下僅針對不同的點進行說明 。此外，在圖8’爲了說明的方便，去除隔離薄片27，並 以實線表示第1及第2彈性要素41、42。 在本實施形態，是與第2實施形態同樣，在尿布本體 1 4的兩側部3 0、3 1，分別僅配置有兩條第1彈性要素4 j。 如此’由於配置有第1彈性要素4 1，所以基本上，側面彈 性域43雖具有均一的收縮率及伸長應力，可是在第1彈性 要素41的一部分，亦即藉由對吸收性芯22的彎折引導部24 側的部位施予壓花加工，阻礙其伸縮性，並形成有低彈性 部4 6。亦即，在低彈性部4 6，在朝縱向Y間歇性地配置複 數個壓花加工部57，阻礙其伸縮性，在低彈性部46，僅在 壓花加工部57間的部位59產生伸縮性。藉此，在尿布本體 1 4的兩側部30、3 1形成有低彈性部46與比其收縮率及伸長 應力高的高彈性部47。此外，在本實施形態，各壓花加工 部57雖是以與形成第1彈性要素41的複數個彈性要素在橫 軸Q的方向交叉的方式所形成，可是作爲低彈性部46全體 •20- 201225937 ，只要可實現所需要的收縮率及伸長應力的減低，也可僅 針對形成第1彈性要素4 1的彈性要素中的最內側的彈性要 素5 3施予壓花加工，在最外側的彈性要素58不施予壓花加 工。此時，藉由第1緊固系統穿用尿布10時，低彈性部46 的外側緣與使用者的肌膚緊貼，在該部位不會有誘發排泄 物洩漏的皴摺的產生的虞慮。 <第4實施形態> 圖9是與本發明的第4實施形態的尿布1〇的圖2同樣的 展開俯視圖》由於第3實施形態的尿布1〇的基本態樣與第上 實施形態的這個同樣，所以以下僅針對不同的點進行說明 。此外，在圖9，爲了方便說明，去除隔離薄片27，並以 實線表示第1及第2彈性要素41、42» 在本實施形態，是與第2及第3實施形態同樣，在尿布 本體1 4的兩側部3 0、3 1，分別僅配置有兩條第1彈性要素 4 1。如此，由於僅配置有第1彈性要素4 1，所以基本上， 兩側部30、3 1的側面彈性域43雖具有均一的收縮率及伸長 應力，可是在第1彈性要素41的一部分，亦即藉由塗抹塗 工將接著劑以面狀塗布在吸收性芯22的彎折引導部24側的 部位，而形成有低彈性部46。具體而言，在低彈性部46形 成有以面狀被塗布的接著劑所構成的固定部60，阻礙因該 部位的第1彈性要素4 1所爲的伸縮性的產生。因此，側面 彈性域43被區分成低彈性部46與比其收縮率及伸長應力高 的高彈性部47。固定部60的面積等，雖可依據低彈性部46 201225937 所要求的最低限度的伸長倍率及伸長應力適當設定，可是 基重爲5.0〜15.0gms，其橫軸Q的方向的長度尺寸W3是1〇 〜2 0 m m爲理想。 <第5實施形態> 圖1 〇是本發明的第5實施形態的尿布1 〇的立體圖，圖 11表示第5實施形態的尿布10的穿用狀態的立體圖，圖12 是第5實施形態的尿布10的展開俯視圖。由於第5實施形態 的尿布10的基本的構成是與第1實施形態的這個同樣，所 以以下僅針對不同的點進行說明。 如圖10所示，本實施形態的尿布10，在尿布10的前腰 域11的外面設有卡裝第1黏扣要素17的第2黏扣要素18與第 3黏扣要素48 »第3黏扣要素48是夾著彎折案內顯示部25位 在第2黏扣要素18的下方，且具有與第2黏扣要素18同樣的 構成。 如圖11及圖12所示，本實施形態的尿布10的前腰域η 被區分成從彎折引導部24起位在上方的上側域1 1 Α與位在 其下方的下側域1 1 B，沿著彎折引導部24，將前腰域1 1的 上側域1 1 A朝向下側域1 1 B的肌膚對向面往內方彎折，藉 由將帶式扣合件舌片15、16的第1黏扣要素17卡止在第3黏 扣要素48，可在前腰域1 1的一部分朝內側彎折的狀態下直 接穿用尿布1 0。因此，在本實施形態也可選擇性的使用圖 1〇所示，由第1黏扣要素17與第2黏扣要素18所構成的尿布 的第1緊固系統；以及圖1 1所示，由第1黏扣要素17與第 -22- 201225937 3黏扣要素70所構成的尿布10的第2緊固系統，且可容易進 行尿布10的尺寸的調整。 如此，即使將前腰域1 1的一部分朝內側翻折穿用時， 由於在尿布10的兩側部30、31的彎折引導部24的附近區域 ，形成有比其他的部位，亦即比高彈性部47收縮率低的低 彈性部46，所以彎折線52不會成爲彎曲狀，可達成與第1 實施形態同樣的效果。 此外，本發明的尿布10不限於新生兒用，而是關於一 種，在幼兒用的通常的S、M、L尺寸等的複數個尺寸間可 容易變更尺寸的用後即棄式穿著用物品者。又，尿布1 0的 各構成構件中，除了本說明書所記載的材料之外，可不限 定地使用在這類的領域，通常所使用的各種周知的材料。 又，在本發明的說明書及申請專利的範圍，用語「第1」 及「第2」只是爲了區別同樣的要素、位置等所使用者。 【圖式簡單說明】 [圖1]是作爲本發明的第1實施形態的用後即棄式穿著 用物品的一例的用後即棄式紙尿褲的立體圖。 [圖2]從將尿布朝前後方向伸展後的狀態的其內面看 見的一部分破斷展開俯視圖。 [圖3]圖1的III— III線剖視圖。 [圖4]尿布的其他的穿用狀態的立體圖。 [圖5]是與尿布的一部分彎折的狀態的圖2同樣的一部 分破斷展開俯視圖。 -23- 201225937 [圖6]表示穿用尿布之際的樣子的立體圖。 [圖7 ]是與本發明的第2實施形態的圖2同樣的展開俯 視圖。 [圖8]是與本發明的第3實施形態的圖2同樣的展開俯 視圖。 [圖9]是與本發明的第4實施形態的圖2同樣的展開俯 視圖。 [圖10]本發明的第5實施形態的尿布的立體圖。 [圖11]本發明的第5實施形態的尿布的立體圖。 [圖12]是與本發明的第5實施形態的尿布的圖2同樣的 展開俯視圖。 【主要元件符號說明】 1 〇 :用後即棄式紙尿褲（用後即棄式穿著用物品） 1 1 :前腰域 1 2 :後腰域' 13 :褲檔域 1 4 :尿布本體 15、16:帶式扣合件舌片 1 7 :第1黏扣要素 18 :第2黏扣要素 24 ·‘彎折引導部 4 1 :第1彈性要素 42 :第2彈性要素 -24- 201225937 43 :側面彈性域 46 :低彈性部 47 :高彈性部 48 :第3黏扣要素 52 :彎折部位 5 5 :凸出部 6 0 :固定區域 P :縱軸 Q :橫軸 -25-201225937 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a disposable wearing article, and more particularly to an open-type disposable device mainly for newborns. An open-type disposable wearing article such as a disposable diaper, a disposable toilet learning pants, a disposable incontinence shorts, and a disposable physiological shorts. [Prior Art] Conventionally, disposable disposable wearing articles for newborns are well known. For example, Patent Document 1 discloses a liquid-permeable surface sheet: a liquid-impermeable back sheet; a liquid-absorbent core interposed between the sheets in the front and back; and a pair of wearing mats extending in the waist direction: And a disposable diaper of a plurality of elastic members extending from both side portions of the trousers toward the front and rear waist regions [Prior Art Document] [Patent Document] [Patent Document 1] Japanese Patent No. 3343 1 99 DISCLOSURE OF THE INVENTION [Problem to be Solved by the Invention] The disposable diaper disclosed in Patent Document 1 has a thinner portion at a predetermined end portion of the diaper main body, which is adjacent to the liquid-absorbent core-5 - 201225937 Or a bending guide portion extending to the lateral direction of the diaper formed by the absence of the liquid core. By folding the front end portion of the diaper main body outward along the upper portion of the bending guide portion and the wearing mat, the navel of the newborn of the user can be exposed without hindering the abdominal breathing. Further, since the folded portion can be fixed to the diaper main body by the locking means located on the outer surface of the distal end portion, the navel of the newborn can be surely exposed. Further, by a plurality of elastic members extending from both side portions of the waist region toward the front and rear waist regions, the region can be fitted to the user's leg circumference. However, after the wearing of the wearing mat, the front end portion of the diaper main body is bent outward along the upper edge portion of the bending guide portion and the wearing mat, so that the navel position is in the vicinity of the bending guide portion or When it is below, you must remove the locking of the wearing pad and adjust the position of the diaper. Further, in order to prevent the bending of the bent portion on the outer side, it is necessary to have a means for locking the bent portion in addition to the wearing mat, so that the locking operation is complicated. In addition, since the contraction force of the plurality of elastic members extending to the vicinity of the bending portion is obtained when the wearing mat is engaged, the lower portion and the pants are all from the bending portion of the front waist region. In the lower side, that is, the waist portion is pulled toward the back waist region, and the bent portion has a curved shape, the mounting position is shifted, and the leg opening portion of the diaper main body is not sufficiently fitted to the user's leg portion. Next, the worries that are installed. An object of the present invention is to improve the conventional invention, and to provide a one-piece type, the front waist region of the diaper main body can be reliably bent outward by a relatively simple operation, and the body of the user is surely fitted to the user. And when worn, -6- 201225937 will not bend the disposable diapers. [Means for Solving the Problem] In order to solve the above problems, the present invention has a longitudinal axis and a horizontal axis; a skin facing surface and a non-skin opposing surface opposed thereto, and includes: a front waist region, and a rear a waistband region, a pants body extending in a direction of the longitudinal axis between the front and rear waist regions, and a diaper body of an absorbent core extending from the pants region toward the front-rear direction; and both sides of the front and rear waist regions Disposable wearing articles for fastening systems that are connected to each other. The present invention is characterized in that the absorbent core has a bending guide portion extending in a direction of the horizontal axis in the front waist region, and both sides of the pants region are formed to be expandable along the both side portions. In the side elastic region, a low elastic portion that extends from the vicinity of the rear end edge of the bending guide portion toward the rear waist region and has a lower shrinkage ratio than other portions is formed in the side elastic region. According to one aspect of the present invention, the bending line formed by bending the bending guide portion toward the non-skin opposing surface or the skin facing surface of the pants region is The shaft extends in a straight line in almost parallel fashion. According to another aspect of the present invention, in the side elastic region, a plurality of first elastic materials extending in a direction of the longitudinal axis are disposed in the pants region; and the first elastic member In parallel, the plurality of second elastic elements extending in the direction of the vertical axis are disposed in the low elastic portion only the first elastic element 201225937 of the first and second elastic elements. Another embodiment of the present invention In the above-described side elastic region, a plurality of elastic elements extending in the direction of the longitudinal axis are disposed, and the absorbent core has a projection extending in the direction of the horizontal axis in the vicinity of the bending guide portion. The rigidity of the protruding portion is higher than the rigidity of the portion other than the absorbent core, and the low elastic portion is formed in a portion of the elastic element in the vicinity of the protruding portion. According to another aspect of the present invention, in the side elastic region, a plurality of elastic elements extending in a direction of the longitudinal axis are disposed on a portion of the elastic element that is on the front waist region side. The low elastic portion is formed such that the embossed portion is intermittently provided in the longitudinal axis direction. According to another aspect of the present invention, in the side elastic region, a plurality of elastic elements extending in a direction of the longitudinal axis are disposed, and a portion of the elastic element is disposed on a portion of the front waist region side The fixing portion formed by coating the adhesive in a planar shape forms the low elastic portion. According to another aspect of the present invention, the above fastening system is composed of: a first fastening system and a second fastening system. The first fastening system is provided by: a first fastening element on the skin opposing surface of the pair of belt-type fastening tabs extending in the direction of the horizontal axis on both side edges of the field, and the non-skin opposing surface located in the front waist region The second fastening system of the second fastening system includes: the first fastening element of the pair and the third fastening element located on the skin facing surface of the front waist region. In another embodiment, the fastening system is composed of a first fastening system and a second fastening system, and the first fastening -8-201225937 system is provided by: The skin opposing surface 1 of the pair of belt-type fastening tabs extending in the lateral direction on both side edges of the back waist region is the same as the non-skin opposing surface located in the front waist region. The second fastening system has the first fastening system and the front waist. The aforementioned non-skin on the face, the third Velcro elements below said second Velcro elements. According to another aspect of the present invention, in the side surface region, the shrinkage ratio of the low elastic portion is about 70 to 75%, and the shrinkage ratio of the high elastic portion formed by the portion other than the low elastic portion is about 50. ~60%. [Effect of the Invention] According to the present invention, the side surface elastic regions on both side portions of the diaper main body have a low elastic portion which extends from the vicinity of the rear end edge of the bending guide portion toward the horizontal axis, and has a low shrinkage ratio at other portions. Thereby, the diaper is formed in a straight shape due to the bent portion formed along the bending guide portion, so that the attachment position of the diaper main body is not shifted, and the diaper can be attached in a state of being easily aligned. [Embodiment] [Embodiment for Carrying Out the Invention] <First Embodiment> As shown in Figs. 1 and 2, the diaper 10 has a vertical axis P and a horizontal axis Q, and has a skin contact surface side and the pair The non-skin-contact surface side waist region 1 1 , the back waist region 12, and the pair of the first side of the pant shaft between the front and rear waist regions 1 1 and 12 are in the elastic portion, and are mounted in a shape and ratio. The diaper body 14 including the 'field 13 -9-201225937; and a pair of belts extending outward from the side edges 12a, 12b of the back waist region 12 of the diaper body 14 in the direction of the horizontal axis Q Fastener tongues 15, 16. The first fastening element 17 formed of a hook group of a mechanical flat fastener is disposed on the skin facing surface of the belt fastener pieces 15 and 16. Further, a horizontal axis for the first fastening element 17 for detachably locking the belt fastener pieces 15 and 16 is attached to the outer surface of the front waist region 11 via a hot melt adhesive (not shown). The second fastening element 18 formed by the ring group of the mechanical flat fastener extending in the direction of Q. As shown in FIGS. 1 to 4, the diaper main body 14 includes a liquid-permeable top sheet 20 formed of a fiber nonwoven fabric, a porous plastic film, or a laminated sheet or the like, which is positioned on the skin contact surface side; and a diaper is formed. The outer shape of 10 is formed of a moisture-permeable plastic film, a fiber nonwoven fabric, such laminated sheets, and the liquid-impermeable back sheet 2 1 on the non-skin contact surface side; and the staple fiber pulp An absorbent core 22 formed by mixing with superabsorbent polymer particles or the like and interposed between the top sheet 20 and the back sheet 21. The top sheet 20 and the back sheet 21 are hot-melt adhesives which extend from the peripheral edge portion of the absorbent core 22 and pass through the inner surface of at least one of the two sheets 20 and 21 applied to the extended portion. (not shown) are joined to each other. Further, although the absorptive core 22 is not shown, it may be wrapped by a diffusion sheet such as a thin paper. The top sheet 20 has a mass of 15 to 50 g/m2, preferably 20 to 35 g/m2, and a fiber density of 0.01 to 0.04. g/cm3, preferably in the range of 0.025 to 0.035 g/cm3, is formed by a flow-fiber non-woven fabric or a spunbonded nonwoven fabric. Further, the back sheet 21 is a spun -10-201225937 viscous cloth having a mass of 10 to 40 g/m2, preferably 15 to 30 g/m2, a fiber density of 0.06 to O.lg/cm3, and preferably 0.07 to 0.09 g/cm3. Waiting for it to form. The absorbent core 22 has front and rear end edges 22a and 22b and side edges 22c and 22d extending in the direction of the longitudinal axis P between the two. Further, the absorptive core 22 is formed with a bending guide portion 24 extending in the direction of the horizontal axis Q in the front waist region 11. The bending guide portion 24 is a concave groove formed by making the absorbent core 2 2 thinner than other portions. Since the bending guide portion 24 is formed in the absorbent core 2 2, the front waist region 11 can be bent outward via the bending guide portion 24 as will be described later. The bending guide portion 24 is a wide concave groove having a desired size in the direction of the longitudinal axis P, and the length dimension L1 in the direction of the longitudinal axis P due to the separation dimension of the front side edge 24a and the rear side edge 24b. Since it has the effect of the present invention mentioned later, it is preferable that it is 1.0-15.0 mm, More preferably, it is 5.0-10.0 mm. The bending guide portion 24 is formed at a position overlapping the lower side edge 18a of the second fastening element 18 positioned on the outer surface of the diaper main body 14, and corresponds to the bending guide portion 24 on the outer surface of the diaper main body 14, In other words, on the lower side edge 18a of the second fastening element 18 and in the vicinity thereof, a bending guide line 25 which is viewed from the outside of the diaper 10 and which can confirm the position of the bending guide portion 24 is formed. The bending guide line 25 can also be provided with a different color from the second fastening element 18, and the user and the wearer can easily see the position of the bending guide portion 24, or can be formed by adhering the tape. . Further, as shown in FIG. 3, the bending guide portion 24 is a concave groove formed by forming the skin contact surface of the absorbent core 22 in a concave shape, but the non-skin of the absorbent core 22 may be used. The abutting surface is formed in a concave shape. Further, the bending guide portion 24 may be formed by removing a part of the absorbent core 22 from -11 to 201225937, or may be formed by compressing and deforming the absorbent core 22 at this portion. Further, in the bending guide portion 24, the thickness of the absorbent core 22 is made the same as that of the other portions, and the density can be formed to be lower than other portions. A leakage preventing sheet 26 formed of a liquid-impermeable and moisture-permeable plastic film is disposed between the top sheet 20 and the back sheet 21, and is coated on either one of the two sheets 20, 21. The inner surface of the hot melt adhesive (not shown) is fixed. Further, a pair of separator sheets 27 symmetrical with respect to the longitudinal axis P are attached to the outside of the transverse direction X of the absorbent core 22 facing the skin of the diaper. The diaper body 14 further includes: front and rear end portions 28, 29 extending in the direction of the horizontal axis P, and front and rear ends 28, 29 in the direction of the horizontal axis Q, and the longitudinal axis P in the pants region 13 The side portions 30, 31 extending in the direction. When the diaper 10 is worn, the first fastening element 17 of the pair of belt fastening tabs 15 and 16 and the second fastening element 18 positioned on the outer surface of the front waist region 11 are engaged. Draw a waist opening 33 and a pair of leg openings 34 (see Figure 1). The front end portions 28, 29 are stacked on the top surface 20, the leakage preventing sheet 26, the back sheet 21, and the separation sheet 27 which are extended outward from the front and rear end edges of the absorbent core 22 toward the longitudinal axis P. Formed in a way. Further, the both side portions 30, 31 are the top sheet 20, the leakage preventing sheet 26, the back sheet 21, and the separation sheet 27 which are extended outward from the both side edges of the absorbent core 22 in the direction of the horizontal axis Q. Formed in a way that overlaps each other. Further, the back sheet 21 and the spacer sheet 27 are formed in the front and rear waist regions 11 and 12 from the side edges of the top sheet 20 and the leakage preventing sheet 26 forming the both side portions 30 and 31 further toward the horizontal axis q. -12- 201225937 The front and rear side staple fibers 3 5 and 36 which are extended and overlapped each other. Between the side sheets 21 forming the rear side staple fiber 36 and the side edges of the spacer sheet 27, a pair of fixing portions 15a, 16a of the belt fastener pieces 15, 16 are interposed and coated. A hot melt adhesive (not shown) on the inner faces of the two sheets 21, 27 is fixed. Further, the free portions of the belt-type fastener tongues 15, 16 extending outward from the side edges of the rear side staple fibers 36 (the side edges 12a and 12b of the rear waist region 1 2) in the direction of the horizontal axis Q 15b, 16b, the first fastening element 17 is provided. The spacer sheet 27 has a proximal edge portion 37 that forms a part of the both side portions 30, 31, and is fixed to the front and rear fixed ends of the skin facing surface of the top sheet 20 and the back sheet 21 in the front and rear waist regions 11, 12. 38, 39; and a distal edge portion 40 formed by extending the front and rear fixed end portions 38, 39 in the direction of the longitudinal axis P by folding the inner edge of the spacer sheet 27 inward. A plurality of strip-shaped or linear first and second elastic members 41 and 42 extending in the direction of the longitudinal axis P outside the lateral direction X of both side edges of the leakage preventing sheet 26 are passed through a hot-melt adhesive ( Not shown) is retractably mounted between the proximal edge portion 37 of the spacer sheet 27 and both side portions of the back sheet 2 1 . Further, in the distal edge portion 40, two strip-shaped or linear side elastic members 44 extending in the direction of the longitudinal axis P are contractably disposed. The distal edge portion 40 is separated from the skin facing surface of the top sheet 20 by the contraction action of the side elastic members 44 in the wearing state of the diaper 10, thereby forming a pair for preventing side leakage of the excrement. Leak-proof side 45. The first and second elastic members 4, 42 are disposed on both side portions 30, 31 of the diaper main body 14, and at least the direction of the longitudinal axis P is formed with an elastically stretchable side elastic region 43. The first elastic element 41 is composed of two elastic wires extending in the direction of the longitudinal axis P in the entire pants region 13, and the second elastic element-13-201225937 is located between the first elastic elements 41, and In parallel with these, it is composed of two elastic wires extending from the back waist region 1 2 side of the pants range 13 to the front waist region 11 side of the horizontal axis Q. Further, the side elastic region 43 is divided into a low elastic portion 46 having a lower contraction rate and an elongation stress than a portion where only the first elastic element 4 1 is disposed, and the first and second elastic members 41 are disposed. The part other than 42 (highly elastic part 4 7 ) is distinguished. In the skin facing surface of the top sheet 20 of the distal end portion 28, the first fastening element 17 can be locked, and the top sheet 20 is provided with the third fastening element 48 formed by the embossing process. The third fastening element 48 is formed by a plurality of first and second concave lines 49 and 50 extending obliquely with respect to the vertical axis P and the horizontal axis Q, and the first and second concave lines 49, The shape, size, and mutual cross angle of 50 can be appropriately selected. Further, as long as it has the required locking strength with the first fastening element 17, the third fastening element 48 can be non-woven or spun by airflow which is not used for embossing, and which is usually used for such articles. A part of the top sheet formed of a non-woven fabric or the like is formed. The diaper 10 having such a configuration has a second fastening system as shown in Fig. 4, except for the first fastening system composed of the first fastening element 17 and the second fastening element 18, and the system is provided. By bending the front waist region 1 1 toward the outside along the bending guide portion 24, the first fastening element 17 is locked to the third fastening element formed on the skin facing surface of the distal end portion 28. In the manner of 48, the diaper 10 is worn in a state where the front waist region 11 is folded toward the non-skin opposing surface of the pants region 13. When the diaper 10 is worn by the second fastening system, since the user's abdomen is exposed, when the user includes a newborn child, the front waist region 11 is tightened, and the belly is not obstructed. Breathing situation. In particular, when the newborn was born -14-201225937, the navel and its surroundings were not very mature, although even a slight tightening of the front waist region η would cause irritation, but this can also be avoided. Further, in the first fastening system including the first fastening element 17 and the second fastening element 18, the first fastening element 17 may be replaced with a hook group and coated as long as it has a required peeling strength. It is formed by a subsequent agent. At this time, in order to protect the first fastening element 17, a spacer of 矽 may be applied to the surface of the first fastening element 17 to be coated. The belt-type fastening tabs 15 and 16 are preferably formed of, for example, a plastic film, a fiber nonwoven fabric, a laminate of the above, and a sheet material having a relatively high rigidity and a high tensile strength such as kraft paper. Further, as long as the effects required by the present invention can be achieved, the first fastening elements 17 provided on the rear side staple fiber 36 can be directly detachably engaged without using the belt fastening member tongues 15 and 16. The second fastening element is 18. 5 is a developed plan view showing a state in which the front waist region 11 is bent toward the outer side of the diaper 10 along the bending guide portion 24, and FIG. 6 is a perspective view showing a state in which the diaper 10 is worn by the second fastening system. . Further, in Fig. 5, for the sake of convenience, the spacer sheets 27 are removed, and the first and second elastic members 41, 42 are indicated by solid lines. As shown in FIG. 5, when the front waist region 1 1 is bent toward the outer side of the diaper 1 along the bending guide portion 24, in the present invention, the side elastic region 43 is divided into the low elastic portion 46 and the high portion. The elastic portion 47 has a curved line 52 extending in the direction of the horizontal axis Q in a slightly central portion of the bending guide portion 24 opposed to the abdomen of the user, and does not have a curved shape with respect to the horizontal axis q of the diaper 1 The roughly parallel way -15- 201225937 extends. In other words, in the first and second elastic members 41 and 42, in order to make the leg opening edge portion of the diaper 1 与 an elongation force required to be bonded to the leg circumference of the user, the side elastic regions 43 are uniform and required as a whole. At the time of the shrinkage, the contraction action causes the both side portions 30, 3 1 of the pants stop region 13 near the bending guide portion 24 to be stretched rearward, so that the bending line 52 is curved. . In such a case, the front end edge (the bending line 5 2 ) abutting on the lower abdomen of the user is bent, the positional displacement is likely to occur during wearing, and wrinkles occur on the both side portions 30 and 31, and the excrement may be present. Draws from this area. However, in the case of the present embodiment, in the side elastic region 43, by forming the low elastic portion 46 having a relatively low shrinkage ratio in the vicinity of the bending guide portion 24, the region near the bending guide portion 24 does not have a factor 1 and the case where the contraction force of the second elastic element 41 and '42 is stretched rearward. Therefore, as described above, since the bending line 52 does not have a curved shape and extends substantially in parallel along the bending guide portion 24 and the horizontal axis Q, there is no possibility that the pre-aligned mounting position is displaced at the time of mounting. Further, when the bending line 52 is curved, in order to prevent the above disadvantages, the wearer must grasp both sides with both hands and stretch in the direction of the horizontal axis Q to stretch it, but wear it. In the state in which the subsider is to be stretched in the direction in which the bending line 52 is oriented in the horizontal axis Q as described above, it is not easy to lock the first fastening element 17 to the third fastening element 48. In the present embodiment, as shown in FIG. 6, since the bending line 52 extends almost in parallel with the horizontal axis Q, it is not necessary to stretch the bending line 52 from the both sides in the direction of the horizontal axis Q, and bend it via the bending guide portion 24. Thereafter, the first fastening element 17 can be directly locked to the third fastening element 48 at the pre-positioned An-16-.201225937 loading position. In the present embodiment, the length of the longitudinal direction Y of the front waist region 11 is about 60 mm, and the length L3 of the longitudinal direction Y of the low elastic portion 46 is preferably about 60 mm. . When the front waist region 1 1 and the length L2 and L3 of the low elastic portion 46 are substantially the same, the front and rear waist regions 11 in the bent state do not act on the elastic force of the high elastic portion 47, and the first and second sides overlap each other in the front-rear direction. The part is stretched backward due to the stretching force of the second elastic member 42. Further, in such a case, the longitudinal direction Y of the high elastic portion 47 has a length L4 of about 140 mm, and is located at the innermost side of the both side edges 22c and 22d of the absorbent core 22 of the low elastic portion 46 and the first elastic member 41. The separation dimension w of the elastic member 53 in the direction of the horizontal axis Q is preferably about 25 mm. The absorbent core 22 is higher in rigidity (so-called semi-rigid) than the sheet member forming the diaper main body 14 , and when the elastic elements 4 1 and 4 2 are close to the absorbent core 22, 'because their stretching force is suppressed, There will be concerns about the telescopic force that cannot be used. Further, the first and second elastic elements 41 and 42 may be appropriately selected from those conventionally used for such articles, but for example, the first elastic element 41 may have an approximate thickness of about 450 to 95 Odtex. The elastic yarn having an elongation ratio of about 2.2 times is formed of an elastic yarn having a thickness of about 450 to 950 dtex and an elongation ratio of about 1.9 times. Specifically, in the present embodiment, when the elastic yarn having a thickness of about 470 dtex is used as the second and second elastic members 41 and 42, the shrinkage ratio of the low elastic portion 46 is 70 to 75%, and the shrinkage ratio of the high elastic portion 47 is 50~60%. At this time, in the low elastic portion 46, the adhesiveness is lower than the elastic element provided at the edge portion of the leg opening which is generally used, but the high elastic portion 47 has a relatively high elongation stress at -17 to 201225937, and is used as the side elasticity. The elongation stress of the entire region 43 is such that the diaper of the type has the elongation stress of the leg opening portion which is generally used, so there is no fear of leakage of the excrement side <low elastic portion and high elastic portion First, 'the method of measuring the shrinkage rate> first, in the wearing state of the diaper 10 (the state in which the first and second elastic members 41 and 42 are contracted), at the foremost end S of the first elastic element 41 of the low elastic portion 46; The portion located at the boundary between the low elastic portion 46 and the high elastic portion 47, that is, the portion T located near the end 42a of the second elastic element 42, and the first and second elastic elements 41, 42 of the high elastic portion 47. The last square U of the mark is marked separately. Next, 'the length dimension of the direction of the longitudinal axis P between the foremost end S and the portion T located at the boundary; and the length dimension of the direction of the longitudinal axis P between the portion T and the last end U, respectively, are measured as low The length dimension N1 of the contraction of the elastic portion 46 is the length dimension N2 when the elastic portion 47 is contracted. Next, 'the state in which the diaper 10 is unfolded (the state in which the first and second elastic members 4 1 and 42 are extended), the length dimension of the longitudinal axis P between the foremost end s and the portion T is measured in the same manner; The length dimension ' in the direction of the longitudinal axis P between the square ends U is taken as the length dimension N3 of the elongation of the low elastic portion 46, respectively, and the length dimension N4 when the elastic portion 47 is elongated. The shrinkage ratio of the enthalpy measured by the measurement method to the low elastic portion 46 = the length dimension of the low elastic portion 46 when contracted, and the length dimension N3xl 〇〇 (%) of the low elastic portion 46 are high. The shrinkage ratio of the elastic portion 47 = the length dimension N2 at the time of contraction of the high elastic portion 47 + the length dimension N4 -18 - 201225937 x 1 00 (%) of the elongation of the high elastic portion 47 is calculated, and The shrinkage ratio of the low elastic portion 46 and the high elastic portion 47. <Second Embodiment> Fig. 7 is a longitudinal cross-sectional view similar to Fig. 2 showing a second embodiment of the present invention. Since the basic aspect of the diaper 10 of the second embodiment is the same as that of the first embodiment, only the different points will be described below. Further, in Fig. 7, the spacer sheet 27 is removed for convenience of explanation, and the first elastic member 41 is indicated by a solid line. In the present embodiment, only the rain strip first elastic element 4 1 is disposed on the side surface elastic regions 43 of the both side portions 30 and 31 of the diaper main body 14 . Further, a part of the absorbent core 2 2 on the front waist region 1 1 side of the pants range 13 is wider than the first embodiment in the direction of the horizontal axis Q, and is formed in the direction of the horizontal axis Q. A pair of projections 5 5 that are extended outward. The convex portion 5 5 of the absorbent core 2 2 has a higher rigidity than the other portions of the absorbent core 22, and the convex portion 55 and the end portion 5 3 a of the innermost elastic element 5 3 of the first elastic element 4 1 The separation dimension W2 of the direction of the horizontal axis Q is about 5.0 mm. Thus, the first elastic element 41 is disposed over the both side portions 30, 31 of the trousers region 13 and the substantially elastic region 43 has a uniform shrinkage ratio and elongation stress. However, in the vicinity of the convex portion 55 of the absorbent core 22, the first elastic element 41 is close to the convex portion 55, and the convex portion 55 has relatively high rigidity, so that the first elastic element 41 is suppressed. For the contraction force, the low elastic portion 46 having a lower contraction rate and elongation stress than the other portions is formed in the side elastic region 43, and therefore, the side elastic region 43 is divided into the low elastic portion 46 -19 - 201225937 and compared thereto. The high elastic portion 47 having a high shrinkage ratio and a high expansion stress can achieve the same effect as that of the first embodiment, and the absorbent core 22 has the convex portion 55, whereby the absorption area of the entire liquid absorbing core 22 is obtained. Increased, its body fluid absorption performance improved. <Third Embodiment> Fig. 8 is a developed plan view similar to Fig. 2 of the diaper 10 according to the third embodiment of the present invention. Since the basic form of the diaper 1 according to the third embodiment is the same as that of the first embodiment, only the different points will be described below. Further, in Fig. 8', for convenience of explanation, the spacer sheet 27 is removed, and the first and second elastic members 41, 42 are indicated by solid lines. In the present embodiment, as in the second embodiment, only the two first elastic elements 4 j are disposed on both side portions 30 and 31 of the diaper main body 14 . Thus, since the first elastic element 4 1 is disposed, basically, the side elastic region 43 has a uniform shrinkage ratio and an elongation stress, but a part of the first elastic element 41, that is, by the absorbent core 22 The portion on the side of the bending guide portion 24 is subjected to embossing to prevent the stretchability, and a low elastic portion 46 is formed. In other words, in the low-elastic portion 46, a plurality of embossed portions 57 are intermittently arranged in the longitudinal direction Y to impede the stretchability, and the low-elastic portion 46 is stretched only at the portion 59 between the embossed portions 57. Sex. Thereby, the low elastic portion 46 and the high elastic portion 47 having a higher shrinkage ratio and elongation stress are formed on both side portions 30, 31 of the diaper main body 14. Further, in the present embodiment, each of the embossed portions 57 is formed so as to intersect the plurality of elastic elements forming the first elastic member 41 in the direction of the horizontal axis Q, but may be the low elastic portion 46. 201225937, as long as the required shrinkage rate and elongation stress can be reduced, the embossing process can be applied only to the innermost elastic element 5 3 of the elastic elements forming the first elastic element 4 1 , and the outermost elasticity can be applied. Element 58 is not subjected to embossing. At this time, when the diaper 10 is worn by the first fastening system, the outer edge of the low elastic portion 46 is in close contact with the skin of the user, and there is no fear of causing the collapse of the excretion leakage at this portion. <Fourth Embodiment> Fig. 9 is a development plan view similar to Fig. 2 of the diaper 1 according to the fourth embodiment of the present invention, and the basic configuration of the diaper 1 according to the third embodiment and the first embodiment. This is the same, so the following only explains the different points. In addition, in FIG. 9, the spacer sheet 27 is removed, and the first and second elastic elements 41 and 42» are shown by solid lines in the present embodiment. In the present embodiment, the diaper body is the same as in the second and third embodiments. Only the two first elastic elements 4 1 are disposed on the both side portions 30 and 31 of the first and fourth sides. As described above, since only the first elastic element 4 1 is disposed, basically, the side elastic regions 43 of the both side portions 30 and 31 have a uniform shrinkage ratio and an elongation stress, but a part of the first elastic element 41 is also That is, the adhesive is applied to the portion of the absorbent core 22 on the side of the bending guide portion 24 by the application of the coating, and the low elastic portion 46 is formed. Specifically, the low elastic portion 46 is formed with a fixing portion 60 composed of an adhesive applied in a planar shape, and the occurrence of stretchability by the first elastic member 41 of the portion is inhibited. Therefore, the side elastic region 43 is divided into the low elastic portion 46 and the high elastic portion 47 which is higher than the contraction rate and the elongation stress. The area of the fixing portion 60 and the like can be appropriately set according to the minimum expansion ratio and the elongation stress required for the low elastic portion 46 201225937, but the basis weight is 5.0 to 15.0 gms, and the length dimension W3 of the horizontal axis Q is 1 . 〇~2 0 mm is ideal. <Fifth Embodiment> Fig. 1 is a perspective view of a diaper 1 according to a fifth embodiment of the present invention, Fig. 11 is a perspective view showing a wearing state of the diaper 10 according to the fifth embodiment, and Fig. 12 is a fifth embodiment. An expanded top view of the diaper 10. The basic configuration of the diaper 10 according to the fifth embodiment is the same as that of the first embodiment, and therefore, only the differences will be described below. As shown in Fig. 10, in the diaper 10 of the present embodiment, the second fastening element 18 and the third fastening element 48 that are attached to the first fastening element 17 are provided on the outer surface of the front waist region 11 of the diaper 10. The fastening element 48 has a configuration similar to that of the second fastening element 18 in that the display portion 25 is positioned below the second fastening element 18 with the bending portion in between. As shown in Fig. 11 and Fig. 12, the front waist region η of the diaper 10 of the present embodiment is divided into an upper side field 1 1 起 which is positioned upward from the bending guide portion 24 and a lower side field 1 1 positioned below it. B, along the bending guide portion 24, the upper side field 1 1 A of the front waist region 1 1 is bent inward toward the skin facing surface of the lower side field 1 1 B, by the belt fastening piece tongue The first fastening element 17 of the 15 and 16 is locked to the third fastening element 48, and the diaper 10 can be directly worn in a state where a part of the front waist region 1 1 is bent inward. Therefore, in the present embodiment, the first fastening system of the diaper comprising the first fastening element 17 and the second fastening element 18, as shown in Fig. 1A, and the first fastening system shown in Fig. 1 can be selectively used. The second fastening system of the diaper 10 composed of the first fastening element 17 and the -22-201225937 3 fastening element 70 can easily adjust the size of the diaper 10. As described above, even when a part of the front waist region 11 is folded inward, the vicinity of the bending guide portion 24 of the both side portions 30 and 31 of the diaper 10 is formed in comparison with other portions, that is, Since the high elastic portion 47 has the low elastic portion 46 having a low shrinkage ratio, the bending line 52 does not have a curved shape, and the same effects as those of the first embodiment can be achieved. Further, the diaper 10 of the present invention is not limited to the case of a newborn, but is a disposable wearing article which can be easily changed in size between a plurality of sizes such as normal S, M, and L sizes for children. . Further, among the constituent members of the diaper 10, in addition to the materials described in the present specification, various well-known materials which are generally used in such fields can be used. Further, in the scope of the specification and the patent application of the present invention, the terms "1" and "2" are used only to distinguish users of the same elements and positions. [Brief Description of the Drawings] Fig. 1 is a perspective view of a disposable diaper as an example of a disposable wearing article according to the first embodiment of the present invention. Fig. 2 is a partially broken plan view showing the inner surface of the state in which the diaper is stretched in the front-rear direction. FIG. 3 is a cross-sectional view taken along line III-III of FIG. 1. FIG. Fig. 4 is a perspective view showing another wearing state of the diaper. Fig. 5 is a partially broken plan view showing the same state as Fig. 2 in a state in which a part of the diaper is bent. -23- 201225937 [Fig. 6] A perspective view showing a state in which a diaper is worn. Fig. 7 is a developed plan view similar to Fig. 2 of the second embodiment of the present invention. Fig. 8 is a developed plan view similar to Fig. 2 of the third embodiment of the present invention. Fig. 9 is a developed plan view similar to Fig. 2 of the fourth embodiment of the present invention. Fig. 10 is a perspective view of a diaper according to a fifth embodiment of the present invention. Fig. 11 is a perspective view of a diaper according to a fifth embodiment of the present invention. Fig. 12 is a developed plan view similar to Fig. 2 of the diaper according to the fifth embodiment of the present invention. [Description of main component symbols] 1 〇: disposable disposable diaper (disposable wearing item after use) 1 1 : front waist area 1 2 : rear waist area ' 13 : pants range 1 4 : diaper body 15, 16: belt fastening piece tongue 1 7 : first fastening element 18 : second fastening element 24 · 'bending guide part 4 1 : first elastic element 42 : second elastic element - 24 - 201225937 43 : Side elastic field 46: Low elastic portion 47: High elastic portion 48: Third fastening element 52: Bending portion 5 5: Projection portion 6 0: Fixed region P: Vertical axis Q: Horizontal axis - 25 -