200934451 九、發明說明 【發明所屬之技術領域】 本發明是關於一種吸收性物品。 【先前技術】 以往’對於生理用衛生棉等的吸收性物品必須提昇的 貼合性及洩漏防止性有各種的提案。 φ 例如日本特開平10-20 1788號公報所揭示，提案有一 種爲了提昇生理用衛生棉安裝時對身體的貼合性，在生理 用衛生棉的後方部設有朝長方向延伸的一對立體溝，且該 一對立體溝是形成愈朝向後端部，其間隔逐漸變大的生理 用衛生棉。 記載於日本特開平1 0-20 1 78 8號公報的生理用衛生 棉，在安裝時，雖會沿著身體的形狀變形，且貼合性優， 但卻會因安裝後的身體的活動，使得生理用衛生棉歪扭， φ 而成爲洩漏的原因的問題。 又，如日本特開平1 0-225480號公報所揭示，作爲防 止安裝後的生理用衛生棉歪扭的目的也提案有一種在生理 用衛生棉的長方向兩端附近與朝生理用衛生棉長方向延伸 的中心軸呈略垂直的方式橫斷該中心軸，且形成有佔生理 用衛生棉寬方向長度的50 %以上的硬化元素。然而，曰 本特開平1 0-225480號公報記載的生理用衛生棉，由於硬 化元素是跨中心軸所形成，所以會有安裝時不易沿著身體 的形狀，尤其不易沿著臀部的溝的形狀，且貼合性不佳的 -5- 200934451 問題。 【發明內容】 [發明所欲解決之課題] 因此，本發明的目的在提供一種安裝時的貼合性優， 並且也不易因安裝後身體的活動等而歪扭，且洩漏防止性 優的吸收性物品。 ❹ [解決課題用的手段] (1 ) 一種吸收性物品，具備有：表面薄片；裏面薄 片；以及配置在前述表面薄片與前述裏面薄片之間的吸收 體之縱長狀的吸收性物品，其特徵爲，具備有被設置在位 於該吸收性物品長方向一端之後緣側的後方部的後方壓縮 溝，前述後方壓縮溝具有朝該吸收性物品的寬方向延伸’ 且彼此分開的一對横壓縮溝部，該一對横壓縮溝部是以在 Q 寬方向將該吸收性物品分成兩等分朝長方向延伸的縱中心 線爲對稱軸形成大致線對稱。 (2 )如（1 )記載的吸收性物品，其中，前述一對横 壓縮溝部分別形成略直線狀。 (3 )如（1 )或（2 )記載的吸收性物品，其中，前 述後方壓縮溝是連續形成在前述一對横壓縮溝部各自的前 述寬方向的內方，且具有以前述縱中心線作爲對稱軸’形 成大致線對稱的內方壓縮溝部。 (4)如（3)記載的吸收性物品，其中，前述內方壓 -6- 200934451 縮溝部是隔著前述縱中心線所形成的一對內方壓縮溝部， 前述一對內方壓縮溝部各自的前述縱中心線側的端部是形 成從該端部各自延伸的假想延長線彼此交叉。 (5 )如（1 )至（4 )中任一記載的吸收性物品，其 中’前述後方壓縮溝具有連續形成在前述一對横壓縮溝部 各自的前述寬方向外方的一對外方壓縮溝部，該一對外方 壓縮溝部各自是形成位於該一對外方壓縮溝部各自的前述 Q 寬方向外方的一端比前述一對横壓縮溝部更位於該吸收性 物品的前緣側。 (6 )如（1 )至（5 )中任一記載的吸收性物品，其 中’更進一步具備有形成在該吸收性物品的前述長方向的 中央部的一對中央壓縮溝。 [發明的效果] 本發明可提供一種安裝時的貼合性優，並且也不易因 〇 安裝後身體的活動等而歪扭，且洩漏防止性優的吸收性物 品0 【實施方式】 [實施發明用的形態] 以下用圖說明關於本發明適宜的實施形態。 1.第1實施形態 1-1.槪要 200934451 如圖1所示，針對作爲吸收性物品的例子之生理用衛 生棉1進行說明。生理用衛生棉1，具備有：透液性的表 面薄片10、不透液性的裏面薄片20、以及配置在表面薄 片1 〇與裏面薄片2 0之間的液體保持性的吸收體3 0，形 成縱長狀。 於此是以生理用衛生棉1的長方向LD的前方緣3至 翼部2、2的前方緣3側的根部分爲止作爲前方部FP，以 ❹ 翼部2、2的前方緣3側的根部分至後方緣4側的根部爲 止作爲中央部CP，以從翼部2、2的後方緣4側的根部分 至後方緣4爲止作爲後方部BP。 表面薄片10被配置成覆蓋吸收體30的全面。並且， 將身體抵接在與表面薄片10的吸收體30抵接的面相反側 的面。又，於表面薄片10的身體抵接面側，側部薄片11 分別沿著長方向LD配置與吸收體3 0的寬方向WD兩側 部重疊。表面薄片1 0與一對側部薄片1 1、1 1是分別針對 Q 對應吸收體3 0的寬方向WD兩側的部分，沿著長方向LD 利用熱熔接著劑相互接合。一對側部薄片η、11分別將 其一部分從與吸收體3 0兩側對應的部分朝寬方向WD外 方延伸出，而與裏面薄片20 —起形成翼部2、2。 裏面薄片20是在與吸收體30的表面薄片10相反側 的面，被配置成覆蓋吸收體30的全面，並與穿著衣物的 內衣抵接。裏面薄片20是覆蓋吸收體30的內衣抵接面側 全域，並且將其一部分從與吸收體30兩側對應的部分朝 寬方向WD外方延伸出，而與一對側部薄片11、11 一起 200934451 形成一對翼部2、2。此外，翼部2是藉由將側部薄片11 與裏面薄片20分別以熱熔接著劑接合的方式所形成。 第1實施形態中’一對翼部2、2分別在生理用衛生 棉1的中央部CP，形成朝寬方向WD外方延伸出。 在裏面薄片20及一對翼部2、2各自的內衣抵接面側 形成有分別塗布有黏著材的偏移防止部及翼部側偏移防止 部（皆未圖式）。 ❹ 1-2.壓縮溝 如圖1所示，在配置有生理用衛生棉1的表面薄片 10之側形成有中央壓縮溝41及後方壓縮溝42。中央壓縮 溝41形成在生理用衛生棉1的中央部CP。後方壓縮溝 42形成在生理用衛生棉1的後方部BP。第1實施形態 中，中央壓縮溝41及後方壓縮溝42是以縱中心線CL作 爲對稱軸以大致線對稱分別各設置一對。 0 如圖1所示，後方壓縮溝42是在後方部BP朝生理 用衛生棉1的寬方向WD延伸的方式形成一對。一對後方 壓縮溝42、42各具有朝生理用衛生棉1的寬方向WD延 伸，且彼此分開形成的橫壓縮溝部421、421。本實施形 態中，横壓縮溝部421、421構成後方壓縮溝42、42整 體。 横壓縮溝部421、421是朝寬方向WD將生理用衛生 棉1分成兩等分，並以朝長方向LD延伸的縱中心線CL 爲對稱軸形成大致線對稱。又，横壓縮溝部421、421是 200934451 以縱中心線C L·爲中心彼此分開形成。亦即，在生理用衛 生棉1的寬方向WD中央沒有形成横壓縮溝部421、 421。又’一對橫壓縮溝部421、421是位於其生理用衛生 棉1的寬方向WD外方側的端部形成比配置有側部薄片 11的位置還位於寬方向WD內方。 一對横壓縮溝部421、421分別是形成一對横壓縮溝 部421、42 1與朝生理用衛生棉1的寬方向WD延伸的直 0 線所成的角度成爲〇至20度的範圍內爲理想。藉由形成 横壓縮溝部4 2 1形成在上述角度的範圍內，使生理用衛生 棉1的後方部BP可維持對於來自寬方向WD外方側所施 加的力量的剛性。横壓縮溝部42 1形成在上述角度的範圍 外時，則後方部BP變的無法充分維持對於來自寬方向 WD外方側所施加力量的剛性。 一對橫壓縮溝部42 1、42 1各自形成大致直線狀。 又，第1實施形態中，一對横壓縮溝部421、421是形成 Q 一對横壓縮溝部421、421分別與朝生理用衛生棉1的寬 方向WD延伸的直線所成的角度成爲0度。 横壓縮溝部421是從後述位置Z朝向後方緣4側，理 想的是形成在分開 80mm至300mm的範圍內。詳而言 之，横壓縮溝部421是形成在横壓縮溝部421的前方緣3 側從位置Z朝後方緣4側分開80mm的位置至横壓縮溝部 421的後方緣4側端部從位置Z分開3 00mm的位置的範 圍內。本實施形態中，横壓縮溝部421是形成從位置Z至 横壓縮溝部421的後方緣4側端部爲止的距離在13 0mm -10- 200934451 的位置。從位置z至橫壓縮溝部421的前方緣3側端部爲 止的距離短於80mm時，有無法將横壓縮溝部421配置在 對應臀部的溝之處的虞慮，且可能會於生理用衛生棉1的 後方部BP，在安裝時容易施加壓力之處發生扭曲。又， 即使從位置Z至横壓縮溝部42 1的後方緣4側端部爲止的 距離比300mm更分開時，横壓縮溝部421會有被配置在 比臀部的溝更位於身體後方的虞慮，且可能會在抵接於最 0 會活動的臀部的溝的地方產生扭曲。 又，一對横壓縮溝部421、421的寬方向WD的長度 理想是7至40mm，更理想爲15至30mm。小於7mm的 話，則無法維持足夠的剛性，而有扭曲的危機。又，大於 4 0mm的話’則由於會在生理用衛生棉1的寬方向WD的 幾乎全區域形成剛性高的部分，所以可能會具有妨礙生理 用衛生棉1整體朝厚度方向呈凸狀變形的情形。 中央壓縮溝41是在生理用衛生棉1的中央部CP，沿 ❿ 著長方向LD的方式形成一對。中央壓縮溝41、41是由 曲線所形成’朝向生理用衛生棉1的寬方向WD內方彎曲 形成弧狀。具體而言，中央壓縮溝41在一對中央壓縮溝 41、41的長方向LD中央，形成寬方向WD間的長度最 短。一對中央壓縮溝41、41是從翼部2、2的前方緣3側 的根部分附近形成到一對翼部2、2各自的後方緣4側的 根部分的附近。 於此’位置Z是在一對中央壓縮溝41、41，位於將 一對中央壓縮溝41、41間的距離最短的長度聯繫到寬方 -11 - 200934451 向WD的線與在寬方向WD將生理用衛生棉1分成兩等分 的方式延伸的縱中心線CL的交點。此位置Z是假設位在 將排泄口抵接在生理用衛生棉1的位置。 如圖2所示，一對中央壓縮溝41、41及一對橫壓縮 溝部421、421分別是由壓縮並接合表面薄片10與吸收體 30的方式所形成。又，中央壓縮溝41、41及横壓縮溝部 421、421分別是由高壓力所壓縮的高壓縮部41 1、與比高 φ 壓縮部411還低的壓力所壓縮的低壓縮部412連續交替形 成的方式所形成。中央壓縮溝 41、41及横壓縮溝部 421、421是由壓縮表面薄片1〇與吸收體30而呈一體化 的方式形成比沒有形成中央壓縮溝4 1、4 1及横壓縮溝部 421、421的其他區域的剛性還高。 形成有横壓縮溝部421、421及中央壓縮溝41、41的 部分的剛性是〇.5N/英吋以上爲理想。當形成有横壓縮溝 部421、421及中央壓縮溝41、41的部分的剛性小於 φ 0.5N/英吋時，對生理用衛生棉1施加往寬方向WD內方 側的力量時，會有無法將該生理用衛生棉1的後方部BP 維持在平面狀，在使用中’會有生理用衛生棉1歪扭的情 形。 根據第1實施形態’生理用衛生棉1在後方部BP具 備有沿著寬方向 WD彼此分開的一對後方壓縮溝42、 42，且一對後方壓縮溝 42、42分別具有横壓縮溝部 421、421。横壓縮溝部421、421由於是形成朝寬方向 WD延伸，所以可比其他的區域提高往寬方向 WD的剛 -12- 200934451 性。其結果，在生理用衛生棉1安裝中的動 的肉左右的移動對生理用衛生棉1施力或對 周圍施加來自左右的力，生理用衛生棉1的 的不易歪扭，而可防止洩漏。 更進一步，由於一對横壓縮溝部421、 衛生棉1的寬方向WD中央彼此分開形成， 一對横壓縮溝部421、421間的區域在生理, 0 肌膚抵接面側朝厚度方向呈凸狀的變形。藉 縮溝部421、421由於可一面抑制生理用衛: 部BP的寬方向WD外方部分的變形，一 Ϊ 的寬方向WD外方部分在生理用衛生棉1的 溝變形且緊密貼合，所以可防止因身體與生 的間隙產生所造成的洩漏。 又，一對横壓縮溝部421、421是以縱 中心彼此分開形成。亦即，在生理用衛生相 Q WD中央沒有形成壓縮溝這種剛性元件。因 衛生棉1的後方部BP施加了往生理用衛生 WD內方側的力量時，一對横壓縮溝部421 形成剛性元件的縱中心線CL附近部，緩衝 量’可防止後方部BP整體變形的情形。 又’由於一對横壓縮溝部42 1、421是 以使用者在安裝生理用衛生棉1歩行之際， 動施加朝向該生理用衛生棉1的寬方向WD 力量時，横壓縮溝部421、421可各自獨立 作時，因臀部 走路時自腿部 後方部B P變 421在生理用 所以不會妨礙 用衛生棉1的 此，一對横壓 生棉1的後方 Ϊ使後方部BP 安裝時沿著股 理用衛生棉1 中心線C L爲 各1的寬方向 此，在生理用 棉1的寬方向 、421，在沒有 朝內方側的力 分開形成，所 即使因腳的移 內方的不同的 對應其腳的活 -13- 200934451 動進行移動。因此，可提昇生理用衛生棉1的裝用感。 2.其他實施形態 使用圖3至圖6就其他實施形態進行說明。第2實施 形態及第3實施形態在後方壓縮溝42的形狀與第1實施 形態不同。第4實施形態在後方壓縮溝及42中央壓縮溝 41的形狀與第1實施形態不同。第5實施形態在後方壓 φ 縮溝42、中央壓縮溝41、吸收體30及生理用衛生棉1的 形狀與第1實施形態不同。而以下的實施形態中，是以與 第1實施形態不同的點爲中心進行說明，與第1實施形態 同樣的部分賦予相同的符號。 2-1.第2實施形態 如圖3所示，第2實施形態的生理用衛生棉1，一對 後方壓縮溝42、42具有連續形成在横壓縮溝部421、421 0 各自的寬方向WD內方的內方壓縮溝部422、42 2的這一 點與第1實施形態不同。 第2實施形態中，横壓縮溝部421是由朝生理用衛生 棉1的寬方向WD延伸的圓滑的曲線所形成。又，横壓縮 溝部421是形成横壓縮溝部421與朝生理用衛生棉1的寬 方向WD延伸的直線所成的角度爲5度。換言之是形成與 横壓縮溝部42 1的縱中心線CL側正交的方式延伸的假想 延長線V2、V2與縱中心線CL所形成的角度爲85度。 內方壓縮溝部422是隔著縱中心線CL所形成的一對 -14- 200934451 內方壓縮溝部422、422，一對內方壓縮溝部422、42 2 自的縱中心線CL側的端部是形成自該端部各自延伸的 想延長線V,、Vi彼此交叉。詳而言之，一對內方壓縮 '部422、422是形成自一對横壓縮溝部421、421各自的 方向WD內方側的端部朝著前方緣3側向長方向LD 伸。又，一對內方壓縮溝部422是形成朝向前方緣3側 此的間隔慢慢變窄。再者，內方壓縮溝部422、422各 0 的縱中心線CL側，亦即從位於前方緣3側一端部朝向 方緣3側延伸的假想延長線V!、V i分別是形成彼此 叉。而且，後方壓縮溝42整體是由曲線所形成。 位置Z至假想延長線Vi、Vi的交點P爲止的距離 想爲30至3 00mm。第2實施形態中，位置Z至交點P 止的距離例如爲65mm。位置Z至交點P爲止的距離小 3 0mm時，由於後方壓縮溝42、42彼此分開，所以形 在生理用衛生棉1的寬方向WD中央的凸型的變形部分 Q 在生理用衛生棉1的安裝時會有無法對應股溝位置之虞 又，位置Z至交點P爲止的距離大於3 0 0mm時，在生 用衛生棉1的安裝時，上述的變形部分會有位於股溝的 後方位置之虞。 根據第2實施形態，除了可達到與第1實施形態同 的効果之外，生理用衛生棉1形成有朝向前方緣3側， 假想延長線Vi、Vi交叉的方式朝長方向LD延伸的內 壓縮溝部422、422。藉此，促使生理用衛生棉1的寬 向WD中央在安裝時朝身體側呈凸狀變形。而且，包含 各 假 溝 寬 延 彼 白 n 刖 交 理 爲 於 成 5 Ο 理 更 樣 使 方 方 內 -15- 200934451 方壓縮溝422的後方壓縮溝42、42可防止生理用衛生棉 1的後方部BP的歪扭，同時，使生理用衛生棉1沿著身 體變形可防止洩漏。 2-2.第3實施形態 如圖4所示，就第3實施形態進行說明。第3實施形 態的生理用衛生棉1，一對後方壓縮溝42、42除了具備 0 有連續形成在一對横壓縮溝部421 '421各自的寬方向 WD外方側的端部的一對外方壓縮溝部423、423之外是 與第2實施形態同樣的構成。 第3實施形態的後方壓縮溝42、42分別具有：横壓 縮溝部42 1、42 1 ;從位於横壓縮溝部42 1、42 1的寬方向 WD內方的端部連續形成的內方壓縮溝部422、422 ;以及 從位於横壓縮溝部421、421的寬方向WD外方的端部連 續形成的外方壓縮溝部423、423。 Q 外方壓縮溝部42 3、42 3是從位於横壓縮溝部421、 421各自的寬方向WD外方的端部連續形成。又，各外方 壓縮溝部423、423是形成位於外方壓縮溝部423、423各 自的寬方向WD外方的一端比横壓縮溝部421、421更位 於前方緣3側。 詳而言之，外方壓縮溝部423、423是形成與横壓縮 溝部421、421各自的寬方向WD外方側的端部接連，且 是以朝向生理用衛生棉1的寬方向WD外方側呈凸狀的曲 線形成。而且，與外方壓縮溝部423、423的横壓縮溝部 -16- 200934451 42 1、42 1側相反側的端部是比形成有横壓縮溝部42 1、 421的位置更朝長方向LD形成在前方緣3側。 根據第3實施形態，除了達成與第2實施形態同樣的 効果之外，在生理用衛生棉1的安裝時，由於在後方緣4 側會形成由横壓縮溝部421、內方壓縮溝部422、外方壓 縮溝部423所圍成的區域，所以即使對生理用衛生棉1施 加了往寬方向WD內方的力量時，也可維持使被該等圍住 φ 的區域不會變形。因此，後方部BP可抑制對施加在寬方 向WD內方側力量的變形。 又，由於後方壓縮溝42、42的寬方向WD外方側是 以朝向前方緣3側的方式形成，所以，即使排泄物等的液 體流過來時，由於液體會落入到各後方壓縮溝42、42， 所以可防止洩漏。 2-3.第4實施形態 ❹ 如圖5所示，針對第4實施形態進行說明。第4實施 形態的生理用衛生棉1，一對後方壓縮溝42、42在寬方 向WD中央彼此連結，一對後方壓縮溝42、42與一對中 央壓縮溝41、41是各後方壓縮溝42、42的寬方向WD外 方側端部、與各中央壓縮溝4 1、4 1的後方緣4側端部彼 此連結’更進一步，朝向前方緣3側彎曲呈凸狀的前方壓 縮溝43的後方緣4側端部、與各中央壓縮溝41、41的前 方緣3側端部彼此連結。而且，除了具有由中央壓縮溝 41、後方壓縮溝42、前方壓縮溝43整體所形成的環狀的 -17- 200934451 壓縮溝以外是與第3實施形態相同的構成。 具體而言，在後方部BP，後方壓縮溝42是由横壓縮 溝部421、內方壓縮溝部422及外方壓縮溝部423所形 成。一對內方壓縮溝部422是由位於一對横壓縮溝部 4 2 1、4 2 1各自的寬方向 WD內方側的一側朝向縱中心線 CL形成凸狀的圓滑曲線所形成，且內方壓縮溝部422在 縱中心線C L上彼此連結。 φ —對外方壓縮溝部423、423晕由位於一對橫壓縮溝 部421、421各自的寬方向WD外方側的一側朝向寬方向 WD外方側形成凸狀的曲線所形成。又，位於一對外方壓 縮溝部423、423的寬方向WD外方側的一側是形成朝向 前方緣3側延伸，且在寬方向WD內方側形成彼此接近， 與一對中央壓縮溝41、41各自連接。 一對中央壓縮溝41、41是從生理用衛生棉1的中央 部C P形成到後方部B P的前方緣3側。中央壓縮溝41是 φ 由長方向LD的兩端側朝向寬方向WD外方形成凸狀的曲 線所形成，長方向LD的中央部分是形成朝寬方向WD內 方側呈凸狀的圓滑的曲線。而且’位於一對中央壓縮溝 41、 41各自的後方緣4側的端部連接各後方壓縮溝42、 42。 又，位於一對中央壓縮溝41、41的前方緣3側的端 部分別在前方壓縮溝43彼此連接。 前方壓縮溝43從中央部CP的前方緣3側形成到前 方部FP。前方壓縮溝43是由位於一對中央壓縮溝41、41 各自的前方緣3側的端部接連在前方緣3側形成凸狀的曲 -18- 200934451 線所形成。因此，第4實施形態的生理用衛生棉1中’後 方壓縮溝42、中央壓縮溝41及前方壓縮溝43分別彼此 連結，整體形成環狀。 根據第4實施形態，生理用衛生棉1是後方壓縮溝 42、中央壓縮溝41及前方壓縮溝43各自連結，且整體形 成爲具有大致環狀的壓縮溝。藉此，除了達成與第3實施 形態同樣的効果之外，一面抑制朝向後方部BP的寬方向 0 WD內方所施加力量的變形，一面在寬方向WD中央不會 妨礙在身體側變形成爲凸狀。再者，即使排泄物等的液體 流到生理用衛生棉1的表面時，由於液體會落入到各壓縮 溝的底部，被吸收保持在吸收體30，所以可防止洩漏。 2-4.第5實施形態 如圖6所示，針對第5實施形態進行說明。第5實施 形態的生理用衛生棉1除了具有：分別連結前方壓縮溝 0 43及後方壓縮溝42，其長方向LD中央部分形成朝向寬 方向WD內方成爲凸狀的中央壓縮溝41的形狀、具有形 成在後方緣4側端部的寬方向WD中央的切入部46的吸 收體30、形成在生理用衛生棉1的後方緣4端部的寬方 向WD中央的切入部47、以及沿著生理用衛生棉1的外 周緣所形成的側密封部5 0以外是與第4實施形態同樣的 構成。 一對中央壓縮溝41、41是從後方部BP的前方緣3 側形成到中央部CP的前方緣3側，一對中央壓縮溝4 1、 -19- 200934451 41各自的長方向LD略中央是由朝向寬方向WD內方側形 成凸狀的圓滑的曲線所形成。 吸收體30在其後方緣4側的端部具有在縱中心線CL 上沿著彼此連結的內方壓縮溝部422、422的形狀的切入 部46。亦即，吸收體3 0具有後方緣4側的寬方向WD中 央朝向前方緣3側形成凹狀的切入部46。 切入部46是從吸收體30的後方緣4側端部朝前方緣 0 3側10至70mm的長度爲理想。第5實施形態中，吸收 體30的切入部46的長度是15mm。切入部46小於10mm 時，會有無法幫助吸收體30的後方部BP的寬方向WD外 方對應兩腳移動而各自移動的情況。又，切入部46的長 度大於70mm時，會有吸收體30本身的強度降低的危險 性。 在生理用衛生棉1的後方緣4側端部的寬方向WD中 央形成有朝前方緣3側下凹的方式所形成的切入部47。 Φ 生理用衛生棉1的切入部47是形成從生理用衛生棉1的 後方緣4側端部往前方緣3側下凹5至70mm的範圍內爲 理想。本實施形態中，生理用衛生棉1的切入部47的長 度是7mm。而且’後方壓縮溝42、吸收體30的切入部 46、及生理用衛生棉1的切入部47各自的頂點是形成排 列在縱中心線C L上。 生理用衛生棉1的外緣形成有將表面薄片1〇或側部 薄片11、與裏面薄片20彼此壓縮接合的側密封部50。 根據本實施形態，生理用衛生棉1，具有：具沿著由 -20- 200934451 內方壓縮溝部422、422所形成的形狀的切入部46之吸收 體30;以及生理用衛生棉1的後方緣4側端部的寬方向 WD略中央朝前方緣3側凹陷的方式所形成的切入部47。 藉此’除了達成與第4實施形態同樣的効果之外，會促使 生理用衛生棉1的寬方向WD中央以切入部46、47爲中 心，往身體側形成凸狀的變形。又，配合兩腿的各自的動 作，不會阻礙後方部BP獨立的動作。因此，即使使用中 φ 使用者動作時，生理用衛生棉1也可順身體變動。因此， 可防止因身體與生理用衛生棉1的間隙的產生造成的洩 漏。 再者，因生理用衛生棉1的後方壓縮溝42具有横壓 縮溝部421、421，所以朝向寬方向WD內方側施力時， 抑制後方部B P外方的變形。再者，由於外緣具有側密封 部50，所以對於維持生理用衛生棉1的外方側的形狀有 用。 φ 第1實施形態中，生理用衛生棉1雖具有並列在一條 直線上所形成的一對横壓縮溝部4 2 1、4 2 1，但並不侷限 於此。例如，橫壓縮溝部421、421也可是位於橫壓縮溝 部421、421各自的縱中心線CL側的端部位於後方緣4 側，且從後方緣4側往前方緣3側慢慢朝向寬方向WD外 方形成所謂的八字形。又，相反的，橫壓縮溝部42 1、 421也可是從位於横壓縮溝部421、421各自的縱中心線 CL側的端部朝向後方緣4側慢慢朝向寬方向WD外方形 成所謂的倒八字形。 -21 - 200934451 第2實施形態及第3實施形態中，內方壓縮溝部 422、422及外方壓縮溝部423、423雖分別具有由曲線所 形成的後方壓縮溝42、42 ’但並不侷限於此。例如內方 壓縮溝部422、422 ;外方壓縮溝部423、423也可是由直 線所形成的。 本實施形態中，後方壓縮溝42及/或中央壓縮溝41 其底部雖是由高壓縮部411與低壓縮部412連續交替形成 ❹ 的方式所構成，但並不侷限於此。例如也可僅形成有高壓 縮部411及/或低壓縮部412，且整體形成爲均等高度的 溝。又，後方壓縮溝42或中央壓縮溝41，高壓縮部411 或低壓縮部412並非形成在溝的寬度的全部，也可形成在 各溝寬度的一部分。又’也可將高壓縮部411或低壓縮部 4 12的形狀做成點狀或心形狀，對後方壓縮溝42及/或中 央壓縮溝41賦予創意性。藉此，後方壓縮溝42及/或中 央壓縮溝41達成上述這種効果的同時，關於生理用衛生 0 棉1的外観，可提昇對使用者的視覺性。 上述的各實施形態中，雖針對作爲吸收性物品的例子 的生理用衛生棉進行說明，但並不侷限於此。也可使用在 例如衛生護墊或吸尿墊、輕失禁用的尿吸收護墊的這種吸 收性物品。 【圖式簡單說明】 [圖1]爲本發明適宜的第1實施形態的生理用衛生棉 1的俯視圖。 -22- 200934451 [圖2]爲圖！的a-A剖視圖。 [圖3]爲本發明適宜的第2實施形態的生理用衛生棉 的俯視圖。 [圖4]爲本發明適宜的第3實施形態的生理用衛生棉 的俯視圖。 [圖5]爲本發明適宜的第4實施形態的生理用衛生棉 的俯視圖。 [圖6]爲本發明適宜的第5實施形態的生理用衛生棉 φ 的俯視圖。 【主要元件符號說明】 1 :生理用衛生棉 2 :翼部 3 :前方緣 4 :後方緣 4 1 :中央壓縮溝 φ Z :位置 1 〇 :透液性的表面薄片 421 :横壓縮溝部 42 :後方壓縮溝 Η ’·側部薄片 3〇:液體保持性的吸收體 20:不透液性的裏面薄片 4 1 1 :高壓縮部 -23- 200934451 422 :內方壓縮溝部 V2 :假想延長線200934451 IX. Description of the Invention [Technical Field of the Invention] The present invention relates to an absorbent article. [Prior Art] There have been various proposals for improving the fit and leakage prevention properties of absorbent articles such as sanitary napkins. For example, in order to improve the fit of the sanitary napkin during the installation of the sanitary napkin, a pair of three-dimensionally extending in the longitudinal direction is provided in the rear portion of the sanitary napkin. The groove, and the pair of three-dimensional grooves are physiological sanitary napkins which are formed toward the rear end portion and whose intervals are gradually increased. The sanitary tampon described in Japanese Laid-Open Patent Publication No. Hei 1 0-20 1 78 8 is deformed along the shape of the body during installation, and has excellent fit, but it is due to the movement of the body after installation. The problem is that the physiological sanitary napkin is twisted and φ becomes a cause of leakage. Further, as disclosed in Japanese Laid-Open Patent Publication No. Hei No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. 0-225480, it is proposed to prevent the physiological sanitary napkin after the installation from being twisted. The central axis extending in the direction crosses the central axis in a slightly perpendicular manner, and is formed with a hardening element which accounts for 50% or more of the length of the sanitary napkin in the width direction. However, the sanitary napkin described in Japanese Laid-Open Patent Publication No. Hei No. Hei. No. 0-225480 has a hardened element formed along a central axis, and therefore has a shape that is not easily formed along the body during installation, and is particularly difficult to follow the groove of the buttocks. , and the poor fit of the -5 - 200934451 problem. [Problem to be Solved by the Invention] Therefore, an object of the present invention is to provide an excellent adhesion at the time of attachment, and it is also difficult to be twisted by the movement of the body after installation, and the leakage prevention is excellent. Sexual items. ❹ [Means for Solving the Problem] (1) An absorbent article comprising: a surface sheet; an inner sheet; and an elongated absorbent article disposed between the surface sheet and the inner sheet; A rear compression groove having a rear portion provided on a rear edge side of one end in the longitudinal direction of the absorbent article, the rear compression groove having a pair of lateral compressions that extend toward the width direction of the absorbent article and are separated from each other In the groove portion, the pair of laterally compressed groove portions are substantially line-symmetric in that the longitudinal center line extending in the longitudinal direction of the absorbent article in the Q width direction is a symmetry axis. (2) The absorbent article according to (1), wherein the pair of laterally compressed groove portions are formed in a substantially linear shape. (3) The absorbent article according to the above aspect, wherein the rear compression groove is continuously formed in the width direction of each of the pair of lateral compression grooves, and has the longitudinal center line as The axis of symmetry 'forms a substantially linearly symmetrical inner square compression groove. (4) The absorbent article according to the above aspect, wherein the inner pressure -6-200934451 deflation portion is a pair of inner compression groove portions formed by the longitudinal center line, and the pair of inner compression groove portions are respectively The end portion on the longitudinal center line side is such that an imaginary extension line extending from the end portion is formed to intersect each other. (5) The absorbent article according to any one of (1) to (4), wherein the rear compression groove has a outer compression groove portion continuously formed outside the width direction of each of the pair of lateral compression groove portions, Each of the outer compression groove portions is formed at one end of the outer compression groove portion in the outer side in the Q width direction, and is located on the front edge side of the absorbent article more than the pair of lateral compression groove portions. (6) The absorbent article according to any one of (1) to (5), further comprising: a pair of central compression grooves formed in a central portion of the absorbent article in the longitudinal direction. [Effects of the Invention] The present invention can provide an absorbent article which is excellent in adhesion at the time of attachment and which is not easily twisted by the movement of the body after attachment, and which is excellent in leakage prevention. Forms to be used] A preferred embodiment of the present invention will be described below with reference to the drawings. 1. First Embodiment 1-1. Summary 200934451 As shown in Fig. 1, a physiological cotton 1 as an example of an absorbent article will be described. The sanitary napkin 1 includes a liquid permeable surface sheet 10, a liquid-impermeable back sheet 20, and a liquid retaining body 30 disposed between the surface sheet 1 〇 and the back sheet 20, Formed vertically. Here, the front edge FP of the longitudinal direction LD of the sanitary napkin 1 to the front edge 3 side of the wing portions 2 and 2 is used as the front portion FP, and the front edge 3 side of the flap portions 2 and 2 is formed. The root portion to the root portion on the side of the rear edge 4 serves as the center portion CP, and serves as the rear portion BP from the root portion on the side of the rear edge 4 of the wing portions 2 and 2 to the rear edge 4. The surface sheet 10 is configured to cover the entirety of the absorbent body 30. Further, the body is brought into contact with the surface on the opposite side to the surface on which the absorber 30 of the surface sheet 10 abuts. Further, on the body contact surface side of the surface sheet 10, the side sheets 11 are arranged to overlap the both sides of the width direction WD of the absorber 30 in the longitudinal direction LD. The surface sheet 10 and the pair of side sheets 1 1 and 1 1 are portions on both sides in the width direction WD of the corresponding absorbent body 30 for Q, and are joined to each other by a hot melt adhesive along the longitudinal direction LD. The pair of side sheets η, 11 respectively extend a part thereof from the portion corresponding to both sides of the absorbent body 30 outward in the width direction WD, and form the wing portions 2, 2 together with the inner sheet 20. The inner sheet 20 is disposed on the surface opposite to the surface sheet 10 of the absorbent body 30, and is disposed so as to cover the entire surface of the absorbent body 30 and abut against the underwear on which the clothes are worn. The inner sheet 20 covers the entire surface of the underwear abutting surface of the absorbent body 30, and a part thereof extends outward from the portion corresponding to both sides of the absorbent body 30 in the width direction WD, together with the pair of side sheets 11, 11 200934451 Forms a pair of wings 2, 2. Further, the wing portion 2 is formed by joining the side sheet 11 and the back sheet 20 with a hot melt adhesive, respectively. In the first embodiment, the pair of wing portions 2, 2 are formed to extend outward in the width direction WD at the central portion CP of the sanitary napkin 1. An offset preventing portion and a wing side offset preventing portion (not shown) each having an adhesive material applied thereto are formed on the underwear contact surface side of each of the inner sheet 20 and the pair of wing portions 2, 2. 1-2. Compression groove As shown in Fig. 1, a central compression groove 41 and a rear compression groove 42 are formed on the side of the surface sheet 10 on which the sanitary napkin 1 is placed. The central compression groove 41 is formed in the central portion CP of the sanitary napkin 1. The rear compression groove 42 is formed in the rear portion BP of the sanitary napkin 1. In the first embodiment, the central compression groove 41 and the rear compression groove 42 are each provided in a pair in a substantially line symmetry with the longitudinal center line CL as a symmetry axis. As shown in Fig. 1, the rear compression groove 42 is formed in a pair so that the rear portion BP extends in the width direction WD of the sanitary napkin 1. Each of the pair of rear compression grooves 42 and 42 has lateral compression groove portions 421 and 421 which are formed to extend in the width direction WD of the sanitary napkin 1 and are formed separately from each other. In the present embodiment, the lateral compression groove portions 421 and 421 constitute the entire rear compression grooves 42 and 42. The lateral compression groove portions 421 and 421 divide the sanitary napkin 1 into two equal parts in the width direction WD, and form a substantially line symmetry with the longitudinal center line CL extending in the longitudinal direction LD as the axis of symmetry. Further, the horizontal compression groove portions 421 and 421 are formed separately from each other with the vertical center line C L· as a center. In other words, the horizontal compression groove portions 421 and 421 are not formed in the center of the width direction WD of the sanitary napkin 1 . Further, the pair of lateral compression groove portions 421 and 421 are formed at the end portion on the outer side in the width direction WD of the sanitary napkin 1 in the width direction WD from the position at which the side sheet 11 is disposed. It is preferable that the pair of lateral compression groove portions 421 and 421 are formed such that the angle formed by the pair of lateral compression groove portions 421 and 42 1 and the straight zero line extending in the width direction WD of the sanitary napkin 1 is 〇 to 20 degrees. . By forming the lateral compression groove portion 4 2 1 within the above-described angle range, the rear portion BP of the sanitary napkin 1 can maintain the rigidity with respect to the force applied from the outer side in the width direction WD. When the lateral compression groove portion 42 1 is formed outside the range of the above angle, the rear portion BP does not sufficiently maintain the rigidity with respect to the force applied from the outer side of the width direction WD. Each of the pair of lateral compression groove portions 42 1 and 42 1 is formed in a substantially linear shape. In the first embodiment, the pair of laterally compressed groove portions 421 and 421 are formed such that the angle between the pair of laterally compressed groove portions 421 and 421 and the straight line extending toward the width direction WD of the sanitary napkin 1 is 0 degrees. The lateral compression groove portion 421 is formed from a position Z to be described later toward the rear edge 4, and is desirably formed in a range of 80 mm to 300 mm. Specifically, the lateral compression groove portion 421 is formed at a position separated from the position Z toward the rear edge 4 side by 80 mm from the front edge 3 side of the lateral compression groove portion 421 to the rear edge 4 side end portion of the lateral compression groove portion 421 from the position Z. Within the range of 00mm position. In the present embodiment, the lateral compression groove portion 421 is formed at a position from the position Z to the end portion on the rear edge 4 side of the lateral compression groove portion 421 at a position of 13 0 mm -10- 200934451. When the distance from the position z to the end portion on the front edge 3 side of the lateral compression groove portion 421 is shorter than 80 mm, the lateral compression groove portion 421 may not be disposed in the groove corresponding to the buttocks, and may be used for sanitary napkins. The rear portion BP of 1 is distorted at the time when pressure is easily applied during installation. Further, even when the distance from the position Z to the end portion on the rear edge 4 side of the lateral compression groove portion 42 1 is more than 300 mm, the lateral compression groove portion 421 is disposed closer to the rear of the body than the groove of the buttocks, and It may be distorted where it touches the groove of the hip that is the most active. Further, the length of the pair of laterally compressed groove portions 421 and 421 in the width direction WD is preferably 7 to 40 mm, more preferably 15 to 30 mm. If it is less than 7mm, it will not be able to maintain sufficient rigidity and there will be a distorted crisis. In addition, when it is larger than 40 mm, a portion having a high rigidity is formed in almost the entire area of the sanitary napkin 1 in the width direction WD, and thus the entire sanitary napkin 1 may be prevented from being convexly deformed in the thickness direction. . The central compression groove 41 is formed in a pair in the center portion CP of the sanitary napkin 1 so as to be along the longitudinal direction LD. The central compression grooves 41 and 41 are formed by a curved line and curved inward in the width direction WD of the sanitary napkin 1 to form an arc. Specifically, the central compression groove 41 has the shortest length in the width direction WD in the center of the longitudinal direction LD of the pair of central compression grooves 41, 41. The pair of central compression grooves 41, 41 are formed in the vicinity of the root portion on the side of the front edge 3 of the wing portions 2, 2 to the vicinity of the root portion on the side of the rear edge 4 of each of the pair of wing portions 2, 2. Here, the position Z is in the pair of central compression grooves 41, 41, and the length of the shortest distance between the pair of central compression grooves 41, 41 is linked to the width -11 - 200934451 to the WD line and the width direction WD will The sanitary napkin 1 is divided into intersections of longitudinal centerlines CL extending in two equal divisions. This position Z is assumed to be at a position where the excretory opening abuts on the sanitary napkin 1. As shown in Fig. 2, the pair of central compression grooves 41, 41 and the pair of lateral compression groove portions 421, 421 are formed by compressing and joining the surface sheet 10 and the absorber 30, respectively. Further, the central compression grooves 41 and 41 and the lateral compression groove portions 421 and 421 are continuously formed by continuously alternating the high compression portion 41 1 compressed by the high pressure and the low compression portion 412 compressed by the pressure lower than the high φ compression portion 411. The way it is formed. The central compression grooves 41 and 41 and the lateral compression groove portions 421 and 421 are formed integrally with the compressed surface sheet 1〇 and the absorber 30, and are formed such that the central compression grooves 4 1 and 41 and the lateral compression groove portions 421 and 421 are not formed. The rigidity of other areas is also high. The rigidity of the portion where the lateral compression groove portions 421 and 421 and the central compression grooves 41 and 41 are formed is preferably 〇5 N/inch or more. When the rigidity of the portion in which the lateral compression groove portions 421 and 421 and the central compression grooves 41 and 41 are formed is less than φ 0.5 N/inch, the force on the inner side of the width direction WD may not be applied to the sanitary napkin 1 . The rear portion BP of the sanitary napkin 1 is maintained in a flat shape, and the physiological sanitary napkin 1 may be twisted during use. According to the first embodiment, the sanitary napkin 1 includes a pair of rear compression grooves 42 and 42 which are separated from each other in the width direction WD in the rear portion BP, and each of the pair of rear compression grooves 42 and 42 has a lateral compression groove portion 421, 421. Since the lateral compression groove portions 421 and 421 are formed to extend in the width direction WD, the -12-200934451 property in the width direction WD can be improved compared with other regions. As a result, the left and right movement of the moving meat in the installation of the sanitary napkin 1 exerts a force on the sanitary napkin 1 or applies a force from the left and right to the surroundings, and the sanitary napkin 1 is less likely to be twisted, thereby preventing leakage. . Further, since the pair of lateral compression groove portions 421 and the center of the width direction WD of the sanitary napkin 1 are formed apart from each other, the region between the pair of lateral compression groove portions 421 and 421 is physiological, and the skin contact surface side of the skin is convex toward the thickness direction. Deformation. Since the deflated groove portions 421 and 421 can suppress the deformation of the outer portion of the plexus BD in the width direction WD, the outer portion of the width WD of the ridge is deformed and closely adhered to the groove of the sanitary napkin 1 It can prevent leakage caused by the gap between the body and the raw. Further, the pair of lateral compression groove portions 421, 421 are formed apart from each other by the longitudinal center. That is, a rigid member such as a compression groove is not formed in the center of the physiological hygiene phase Q WD. When the rear portion BP of the sanitary napkin 1 applies the force to the inner side of the sanitary ware WD, the pair of laterally compressed groove portions 421 form a portion near the longitudinal center line CL of the rigid member, and the amount of cushioning prevents the entire rear portion BP from being deformed. situation. In addition, when the pair of lateral compression groove portions 42 1 and 421 are applied to the physiological sanitary napkin 1 in the width direction, the transverse compression groove portions 421 and 421 can be applied when the user applies the sanitary napkin 1 in the width direction. When the horses are walking independently, the BP is changed from the rear part of the leg to the 421. Therefore, the sanitary napkin 1 is not hindered, and the rear side of the pair of transverse pressure cotton 1 is attached to the rear part BP. The center line CL of the sanitary napkin 1 is in the width direction of each of the first, and is formed in the width direction of the physiological cotton 1 and 421 in the width direction of the inner side, and is formed by the force of the inner side. The foot of the live-13-200934451 moves. Therefore, the feeling of attachment of the sanitary napkin 1 can be improved. 2. Other Embodiments Other embodiments will be described with reference to Figs. 3 to 6 . In the second embodiment and the third embodiment, the shape of the rear compression groove 42 is different from that of the first embodiment. In the fourth embodiment, the shape of the rear compression groove 42 and the central compression groove 41 is different from that of the first embodiment. In the fifth embodiment, the shape of the rear pressure φ contraction groove 42, the central compression groove 41, the absorber 30, and the sanitary napkin 1 is different from that of the first embodiment. In the following embodiments, the differences from the first embodiment will be mainly described, and the same portions as those in the first embodiment will be denoted by the same reference numerals. 2-1. Second Embodiment As shown in Fig. 3, in the sanitary napkin 1 of the second embodiment, the pair of rear compression grooves 42 and 42 are continuously formed in the width direction WD of each of the lateral compression groove portions 421 and 421 0. The inside of the square is different from the first embodiment in that the groove portions 422 and 42 2 are compressed. In the second embodiment, the lateral compression groove portion 421 is formed by a smooth curve extending in the width direction WD of the sanitary napkin 1. Further, the horizontal compression groove portion 421 has an angle formed by a straight line forming the lateral compression groove portion 421 and extending in the width direction WD of the sanitary napkin 1 by 5 degrees. In other words, the angle formed by the imaginary extension lines V2 and V2 extending so as to be orthogonal to the longitudinal center line CL side of the lateral compression groove portion 42 1 and the vertical center line CL is 85 degrees. The inner compression groove portion 422 is a pair of-14-200934451 inner compression groove portions 422 and 422 formed via the vertical center line CL, and the end portions of the pair of inner side compression groove portions 422 and 42 2 from the longitudinal center line CL side are The extension lines V extending from the end portions are formed, and Vi intersects each other. In detail, the pair of inner side compression portions 422 and 422 are formed so as to extend in the longitudinal direction LD toward the front side edge 3 from the inner side in the direction WD of each of the pair of lateral compression groove portions 421 and 421. Further, the pair of inner side compressed groove portions 422 are formed to gradually decrease toward the front edge 3 side. Further, on the side of the longitudinal center line CL of each of the inner side compressed groove portions 422 and 422, that is, the virtual extension lines V! and V i extending from the one end portion on the side of the front edge 3 toward the side edge 3 are formed to each other. Further, the rear compression groove 42 as a whole is formed by a curved line. The distance from the position Z to the intersection point P of the imaginary extension lines Vi and Vi is intended to be 30 to 300 mm. In the second embodiment, the distance from the position Z to the intersection point P is, for example, 65 mm. When the distance from the position Z to the intersection point P is 30 mm, the convex compression grooves Q in the center of the width direction WD of the sanitary napkin 1 are in the physiological sanitary napkin 1 because the rear compression grooves 42 and 42 are separated from each other. When the installation is performed, the position of the groove may not be corresponding to the position of the groove. When the distance from the position Z to the intersection point P is greater than 300 mm, when the sanitary napkin 1 is installed, the above-mentioned deformation portion may be located at the rear of the groove. Hey. According to the second embodiment, the sanitary napkin 1 is formed to have an inner compression extending toward the front edge 3 side and extending in the longitudinal direction LD so that the extension lines Vi and Vi intersect. Grooves 422, 422. Thereby, the center of the width WD of the sanitary napkin 1 is caused to be convexly deformed toward the body side at the time of attachment. Moreover, the rear compression grooves 42 and 42 of the square compression groove 422 can be prevented from being rearward of the sanitary napkin 1 by including the respective grooves and the width of the skin. The BP is twisted and twisted, and at the same time, the physiological sanitary napkin 1 is deformed along the body to prevent leakage. 2-2. Third Embodiment As shown in Fig. 4, a third embodiment will be described. In the sanitary napkin 1 of the third embodiment, the pair of rear compression grooves 42 and 42 are provided with a zero compression of the end portion of the pair of lateral compression groove portions 421 421 which are formed on the outer side in the width direction WD. The other portions other than the groove portions 423 and 423 have the same configuration as that of the second embodiment. The rear compression grooves 42 and 42 of the third embodiment each have a lateral compression groove portion 42 1 and 42 1 and an inner compression groove portion 422 which is continuously formed from an end portion located inside the width direction WD of the lateral compression groove portions 42 1 and 42 1 . And 422; and outer compression groove portions 423 and 423 which are continuously formed from end portions located outside the widthwise direction WD of the lateral compression groove portions 421 and 421. The Q outer compression groove portions 42 3 and 42 3 are continuously formed from the end portions of the lateral compression groove portions 421 and 421 which are outward in the width direction WD. Further, each of the outer compression groove portions 423 and 423 has one end located outside the width direction WD of each of the outer compression groove portions 423 and 423, and is located closer to the front edge 3 than the lateral compression groove portions 421 and 421. In detail, the outer compression groove portions 423 and 423 are formed so as to be continuous with the end portions of the lateral compression groove portions 421 and 421 on the outer side in the width direction WD, and are oriented outward in the width direction WD of the sanitary napkin 1 . A convex curve is formed. Further, the end portions on the side opposite to the lateral compression groove portions -16 - 200934451 42 1 and 42 1 sides of the outer compression groove portions 423 and 423 are formed in the front direction in the longitudinal direction LD than the positions at which the lateral compression groove portions 42 1 and 421 are formed. Edge 3 side. According to the third embodiment, in addition to the effects similar to those of the second embodiment, when the sanitary napkin 1 is attached, the lateral compression groove portion 421 and the inner compression groove portion 422 are formed on the rear edge 4 side. Since the area surrounded by the groove portion 423 is compressed, even when the force in the width direction WD is applied to the sanitary napkin 1, the area surrounded by the φ can be maintained without being deformed. Therefore, the rear portion BP suppresses deformation of the force applied to the inner side in the wide direction WD. Further, since the outer side in the width direction WD of the rear compression grooves 42 and 42 is formed toward the front edge 3 side, even if liquid such as excrement flows, liquid will fall into each rear compression groove 42. 42, so it can prevent leakage. 2-3. Fourth Embodiment ❹ A fourth embodiment will be described with reference to Fig. 5 . In the sanitary napkin 1 of the fourth embodiment, the pair of rear compression grooves 42 and 42 are connected to each other in the center in the width direction WD, and the pair of rear compression grooves 42 and 42 and the pair of central compression grooves 41 and 41 are the respective rear compression grooves 42. Further, the outer end portion of the width direction WD of the 42 and the end portion of the rear end edge 4 of each of the central compression grooves 4 1 and 4 1 are connected to each other, and the front compression groove 43 is curved toward the front edge 3 side. The end portion on the side of the rear edge 4 and the end portion on the side of the front edge 3 of each of the central compression grooves 41 and 41 are coupled to each other. Further, the configuration is the same as that of the third embodiment except for the annular -17-200934451 compression groove formed by the central compression groove 41, the rear compression groove 42, and the front compression groove 43 as a whole. Specifically, in the rear portion BP, the rear compression groove 42 is formed by the lateral compression groove portion 421, the inner compression groove portion 422, and the outer compression groove portion 423. The pair of inner side compressed groove portions 422 are formed by a rounded curve in which the inner side of the pair of laterally compressed groove portions 4 2 1 and 4 2 1 in the width direction WD is convex toward the longitudinal center line CL, and the inner side is formed. The compression groove portions 422 are coupled to each other on the longitudinal center line CL. φ—The outer compression groove portions 423 and 423 are formed by a curved line which is convex toward the outer side in the width direction WD on the outer side in the width direction WD of each of the pair of lateral compression grooves 421 and 421. Moreover, the side located on the outer side in the width direction WD of the outer compression groove portions 423 and 423 is formed to extend toward the front edge 3 side, and is formed closer to each other in the inner side in the width direction WD, and a pair of central compression grooves 41, 41 are connected individually. The pair of central compression grooves 41 and 41 are formed from the central portion C P of the sanitary napkin 1 to the front edge 3 side of the rear portion B P . The central compression groove 41 is formed by a curved line in which the both end sides of the longitudinal direction LD are convex outward in the width direction WD, and the central portion of the longitudinal direction LD is formed into a smooth curve which is convex toward the inner side in the width direction WD. . Further, the end portions on the side of the rear edge 4 of each of the pair of central compression grooves 41, 41 are connected to the respective rear compression grooves 42, 42. Further, the end portions on the side of the front edge 3 of the pair of central compression grooves 41, 41 are connected to each other at the front compression groove 43. The front compression groove 43 is formed from the front edge 3 side of the center portion CP to the front portion FP. The front compression groove 43 is formed by a line of a curve -18-200934451 which is formed in a convex shape on the side of the front edge 3 in the end portion on the side of the front edge 3 of each of the pair of central compression grooves 41 and 41. Therefore, in the sanitary napkin 1 of the fourth embodiment, the rear compression groove 42, the central compression groove 41, and the front compression groove 43 are connected to each other, and the entire shape is annular. According to the fourth embodiment, the sanitary napkin 1 is connected to the rear compression groove 42, the central compression groove 41, and the front compression groove 43, and is integrally formed into a compression groove having a substantially annular shape. In addition to the effect of the third embodiment, the deformation of the force applied to the inside of the width direction 0 WD of the rear portion BP is suppressed, and the deformation in the center of the width direction WD does not hinder the deformation on the body side. shape. Further, even if the liquid such as excrement flows to the surface of the sanitary napkin 1, since the liquid falls into the bottom of each compression groove and is absorbed and held by the absorbent body 30, leakage can be prevented. 2-4. Fifth Embodiment As shown in Fig. 6, a fifth embodiment will be described. The sanitary napkin 1 of the fifth embodiment has a shape in which a central compression groove 41 and a rear compression groove 42 are connected to each other, and a central portion of the longitudinal direction LD is formed in a central compression groove 41 that is convex toward the inside in the width direction WD. The absorbent body 30 having the cut-in portion 46 formed at the center of the width direction WD at the end portion of the rear edge 4, the cut portion 47 formed at the center of the width direction WD of the end portion of the rear edge 4 of the sanitary napkin 1, and the physiological portion Other than the side seal portion 50 formed by the outer periphery of the sanitary napkin 1, the same configuration as that of the fourth embodiment is employed. The pair of central compression grooves 41 and 41 are formed from the front edge 3 side of the rear portion BP to the front edge 3 side of the center portion CP, and the longitudinal direction of each of the pair of central compression grooves 4 1 and -19- 200934451 41 is slightly centered. It is formed by a smooth curve which is convex toward the inner side in the width direction WD. The end portion of the absorber 30 on the side of the rear edge 4 has a cut-in portion 46 having a shape in which the inner side compressed groove portions 422 and 422 are connected to each other along the longitudinal center line CL. In other words, the absorber 30 has a cut-in portion 46 having a concave shape toward the front edge 3 side in the width direction WD on the side of the rear edge 4. The cut-in portion 46 is preferably a length from the end portion on the rear edge 4 side of the absorber 30 toward the side of the front edge 0 3 of 10 to 70 mm. In the fifth embodiment, the length of the cut portion 46 of the absorbent body 30 is 15 mm. When the cut-in portion 46 is smaller than 10 mm, there is a case where the outer side of the width direction WD of the rear portion BP of the absorber 30 cannot be moved in response to the movement of the two legs. Further, when the length of the cut portion 46 is more than 70 mm, the strength of the absorber 30 itself may be lowered. A cut-in portion 47 formed to be recessed toward the front edge 3 side is formed in the center of the width direction WD of the end portion of the rear edge 4 of the sanitary napkin 1 at the center. Φ The cut-in portion 47 of the sanitary napkin 1 is preferably formed in a range of 5 to 70 mm from the end portion on the rear edge 4 side of the sanitary napkin 1 to the front edge 3 side. In the present embodiment, the length of the cut portion 47 of the sanitary napkin 1 is 7 mm. Further, the apexes of the rear compression groove 42, the cut portion 46 of the absorbent body 30, and the cut portion 47 of the sanitary napkin 1 are arranged on the longitudinal center line CL. The outer edge of the sanitary napkin 1 is formed with a side seal portion 50 that presses and bonds the surface sheet 1 or the side sheet 11 and the back sheet 20 to each other. According to the present embodiment, the sanitary napkin 1 has the absorbent body 30 having the cut-in portion 46 having a shape formed by the inner compression groove portions 422 and 422 of -20-200934451; and the rear edge of the sanitary napkin 1 The cut portion 47 formed so that the width direction WD of the side end portion is slightly recessed toward the front edge 3 side. By the same effect as in the fourth embodiment, the center of the width direction WD of the sanitary napkin 1 is centered on the cut portions 46 and 47, and the convex deformation is formed on the body side. Moreover, the movement of the legs can be prevented from hindering the independent operation of the rear portion BP. Therefore, the sanitary napkin 1 can be naturally changed even when the user operates in the middle of φ. Therefore, leakage due to the occurrence of the gap between the body and the sanitary napkin 1 can be prevented. In addition, since the rear compression groove 42 of the sanitary napkin 1 has the lateral pressure reduction groove portions 421 and 421, when the force is applied to the inner side in the width direction WD, the deformation of the outer portion B P is suppressed. Further, since the outer edge has the side seal portion 50, it is useful for maintaining the shape of the outer side of the sanitary napkin 1. φ In the first embodiment, the sanitary napkin 1 has a pair of laterally compressed groove portions 4 2 1 and 4 2 1 which are formed in parallel on one straight line, but is not limited thereto. For example, the lateral compression groove portions 421 and 421 may be located on the side of the rear edge 4 on the side of the longitudinal center line CL of each of the lateral compression groove portions 421 and 421, and may gradually move toward the width direction from the rear edge 4 side toward the front edge 3 side. The WD outside forms a so-called eight-character. On the other hand, the lateral compression groove portions 42 1 and 421 may form a so-called inverted eight from the end portion on the longitudinal center line CL side of each of the lateral compression groove portions 421 and 421 toward the rear edge 4 side toward the outside in the width direction WD. Glyph. -21 - 200934451 In the second embodiment and the third embodiment, the inner compression groove portions 422 and 422 and the outer compression groove portions 423 and 423 each have rear compression grooves 42 and 42' formed by curved lines, but are not limited thereto. this. For example, the inner side compressed groove portions 422, 422; the outer side compressed groove portions 423, 423 may be formed by straight lines. In the present embodiment, the bottom portion of the rear compression groove 42 and/or the central compression groove 41 is formed by alternately forming a high-compression portion 411 and a low-compression portion 412. However, the present invention is not limited thereto. For example, only the high pressure reducing portion 411 and/or the low compression portion 412 may be formed, and the entire groove may be formed at a uniform height. Further, the rear compression groove 42 or the central compression groove 41, the high compression portion 411 or the low compression portion 412 are not formed in all of the width of the groove, and may be formed in a part of the width of each groove. Further, the shape of the high compression portion 411 or the low compression portion 412 may be a dot shape or a heart shape, and the rear compression groove 42 and/or the central compression groove 41 may be creative. Thereby, the rear compression groove 42 and/or the central compression groove 41 achieve the above-described effects, and the visibility of the user can be improved with respect to the outer circumference of the sanitary napkin 0. In each of the above-described embodiments, the sanitary napkin as an example of the absorbent article is described, but the invention is not limited thereto. It is also possible to use such an absorbent article such as a sanitary pad or a urine absorbing pad, and a diarrhea pad that is incontinent. [Brief Description of the Drawings] Fig. 1 is a plan view showing a sanitary napkin 1 according to a first embodiment of the present invention. -22- 200934451 [Figure 2] is a picture! A-A cross-sectional view. Fig. 3 is a plan view showing a sanitary napkin according to a second embodiment of the present invention. Fig. 4 is a plan view showing a sanitary napkin according to a third preferred embodiment of the present invention. Fig. 5 is a plan view showing a sanitary napkin according to a fourth preferred embodiment of the present invention. Fig. 6 is a plan view showing a sanitary napkin φ according to a fifth embodiment of the present invention. [Explanation of main component symbols] 1 : Physiological sanitary napkin 2 : Wing 3 : Front edge 4 : Rear edge 4 1 : Central compression groove φ Z : Position 1 〇: Liquid permeable surface sheet 421 : Transverse compression groove portion 42 : Rear compression groove · '· Side sheet 3 〇: Liquid-retaining absorber 20: Liquid-impermeable back sheet 4 1 1 : High compression section -23- 200934451 422 : Inner compression groove part V2 : Imaginary extension line
Vj :假想延長線 P :交點 423 :外方壓縮溝部 4 3 :前方壓縮溝Vj: imaginary extension line P: intersection point 423: external compression groove section 4 3 : front compression groove
5 0 :側密封部 47 :切入部 46 :切入部 C P :中央部 BP :後方部 C L :縱中心線 WD :寬方向 LD :長方向 4 1 2 :低壓縮部50: side seal portion 47: cut portion 46: cut portion C P : center portion BP: rear portion C L : longitudinal center line WD: width direction LD: long direction 4 1 2 : low compression portion
-24-twenty four