M269049 (1) 九、發明說明 【新型所屬之技術領域】 本創作係關於一種適於就寢時等的穿用之生理用衛生 棉’特別是關於一種安裝有從胯股部大範圍包覆臀部的後 方翼部之生理用衛生棉。 【先前技術】 做爲適於在生理期中的女性就寢時等的穿用之生理用 衛生棉，有使用縱長方向的尺寸長，在前方安裝有往横寬 方向的兩側突出之反折翼部，在後方安裝有突出於橫寬方 向的兩側之後方翼部者。在將此生理用衛生棉安裝於內褲 的內側時，將上述反折翼部反折至內褲的褲襠部外面並利 用感壓接著劑層來接著固定。並且，將後方翼部介由感壓 接著劑層接著固定於內褲的後半身之內面。 記載於以下的專利文獻1至專利文獻4的生理用衛生 棉，任何一個都具有反折翼部及後方翼部。這些生理用衛 生棉，後方翼部朝向衛生棉的後緣，其寬度尺寸漸漸地變 大’在靠近衛生棉的後緣之位置，寬度尺寸變成最大。 而且，記載於專利文獻1者，安裝於衛生棉的穿衣側 表面之感壓接著劑層，被安裝在後方翼部的寬度尺寸變成 最大的部份。 〔專利文獻1〕日本特開平8 - 3 2 2 8 7 9號 〔專利文獻2〕日本特開2000-189459號 〔專利文獻3〕日本特開2 0 0 3 - 5 2 7 4 3號 M269049 (2) 〔專利文獻4〕日本特開2 0 03 -5 2 744號 【新型內容】 ί.創作的開示〕 L創作所欲解決之課題〕 上述以往的生理用衛生棉，任何一個都藉由安裝後方 翼部，在就寢時等，可以防止往臀部方向的經血之洩漏。 但是，記載於各專利文獻的生理用衛生棉，後方翼部的寬 度尺寸變成最大的部份，係在靠近衛生棉的後緣之位置， 在後方翼部的前方部份，衛生棉的寬度尺寸會變小。因此 ，在就寢時爲側躺姿勢等，經血沿著生理用衛生棉的肌側 表面往斜後方流動時，無法藉由後方翼部充分地防止此經 血的滲出。 而且，在將縱長的生理用衛生棉裝著於身體時，該前 方部份夾在身體的大腿部，並且因爲上述反折翼部被固定 於內褲，所以此前方部份相對地較不容易脫離位置。但是 ，生理用衛生棉的後方部份，隨著身體的動作，以横寬方 向中心線附近做爲支點而容易左右地移動，該移動幅度隨 著從上述横寬方向中心線遠離，亦即靠近衛生棉的後緣而 變大。 在記載於各專利文獻的生理用衛生棉，因爲在靠近往 横寬方向的移動大之後緣，後方翼部的寬度尺寸變大，所 以在寬度變大的部份’容易發生在後方翼部產生皺褶而從 內褲的內面捲曲的現象。而且，記載於專利文獻1者，係 -5- M269049 (3) 在靠近衛生棉的後緣之位置，安裝有將後方翼部固定於內 褲的感壓接著劑層，但因爲在此部份，衛生棉容易往横寬 方向大幅度移動，所以在利用感壓接著劑層的固定部之周 圍部份，衛生棉容易起皺褶。因此，因爲產生於衛生棉的 後緣附近之上述皺褶及捲曲，會傳導至衛生棉的前方，所 以生理用衛生棉整體容易變形，而且該裝著位置也容易不 穩定。 記載於專利文獻2至4者，在肌側表面以壓紋花樣所 包圍的區域係在縱長方向長形地形成。如此裝設以壓紋花 樣所包圍的縱長區域，則從女性的胯股部的陰道至肛門附 近，衛生棉的肌側表面和身體之間難以形成縫隙。但是， 如上述般將後方翼部的寬度尺寸大的部份做爲關鍵，若衛 生棉整體容易產生變形，則上述區域的特別是後方部份從 會陰部及肛門隔開，往横寬方向位置脫離，無法充分地發 揮裝設上述壓紋花樣的效果。 本創作爲解決上述以往的課題者，其目的係提供一種 後方翼部不易變形，經常大範圍包覆臀部，不易發生往後 方及斜後方的經血之洩漏的生理用衛生棉。 〔用以解決課題之手段〕 本創作係具有肌側表面及穿衣側表面，且具備吸收被 給予至上述肌側表面的液體之液體吸收層、及出現於上述 穿衣側表面的背面薄膜之縱長的生理用衛生棉，其特徵爲 -6 - M269049 (4) 具有突出於横寬方向的兩側之反折翼部、及在從比此 反折翼部更後方的突出起點至衛生棉的後緣爲止的範圍， 突出於橫寬方向的兩側之後方翼部，且上述後方翼部，在 比從上述突出起點至上述後緣爲止的縱長方向之長度的中 點更前方，從縱長方向中心的半幅尺寸變成最大。 此生理用衛生棉，因爲在後方翼部的前方部份，該寬 度尺寸變成最大，所以在就寢時爲側躺姿勢等，即使經血 往斜後方流動，也可以在後方翼部接收此經血，而可以輕 易防止往衛生棉外的經血之洩漏。再者，縱長的生理用衛 生棉，越往後緣朝横寬方向的移動就越大，但因爲後方翼 部的寬度尺寸大的部份，位於從衛生棉的後緣與前方隔離 的位置，所以作用於寬度尺寸大的部份之往横寬方向的移 動相對地變小，不易在衛生棉產生皺褶及捲曲。 而且，在本創作，上述後方翼部’最好是從半幅尺寸 變成最大的位置朝向上述後緣，半幅尺寸漸漸地變小的形 狀。 後方翼部若爲越往後緣寬度尺寸漸漸地變小的形狀， 則可以避免作用於後方翼部的後緣之作用力局部地集中， 而容易以後方翼部包覆臀部的狀態來保持穩定之形狀。 而且，在本創作，從將上述反折翼部在縱長方向平分 爲二半的橫寬方向基準線至上述半幅尺寸變成最大的位置 爲止之縱長方向的長度尺寸，最好爲5 0〜I 5 0 m m的範圍 〇 而且，在本創作，上述後方翼部的半幅尺寸之最大値 -7- M269049 (5) ，最好爲6 0〜1 2 0 in ηι的範圍。 若後方翼部的半幅尺寸在上述範圍內，則藉由後方翼 部，可以從肛門的側方至後方爲止大範圍包覆臀部。 而且，本創作在上述後方翼部的穿衣側表面安裝有感 壓接著劑層，此感壓接著劑層，在後方翼部的半幅尺寸變 成最大的位置存在有該一部份，或在上述變成最大的位置 之前後1 Omm的範圍內存在有該一部份。 後方翼部的寬度尺寸變成最大的位置及該附近部份， 介由感壓接著劑層被固定於內褲，則因爲此部份是從後緣 與前方隔離的部份，往橫寬方向的移動不會那麼大，所以 可以用上述感壓接著劑層將後方翼部牢牢地固定於內褲。 因此，利用感壓接著劑層的固定部之周圍不易在衛生棉產 生皴褶。 而且，本創作在上述肌側表面，形成有包圍液體吸收 區域的壓縮溝，此壓縮溝，存在於上述後方翼部的半幅尺 寸變成最大的位置，或位於比上述變成最大的位置更前方 1 0 m m以內的範圍。 由於壓縮溝使被包圍的部份隆起於肌側，此隆起部份 容易緊貼從陰道口至會陰部及肛門的部位。之後，在由此 壓縮溝形成的被包圍部份之兩側，後方翼部的寬度尺寸變 大，因爲此部份以感壓接著劑層牢牢地固定於內褲，所以 由壓縮溝形成的被包圍部份不易從會陰部及肛門脫離，因 此可容易在由壓縮溝形成的被包圍部份接收從胯股部往後 方洩漏的經血。 -8 - M269049 (6) 〔創作的效果〕 在本創作，不易在後方翼部產生皺褶及捲曲，而且後 方翼部及衛生棉整體不易變形，可維持被裝著於身體的適 當位置之狀態，可高度發揮經血的接收功能，使經血難以 洩漏至外部。 【實施方式】 〔創作之最佳實施形態〕 第1圖，爲從肌側表面所見的本創作之第1實施形態 的生理用衛生棉1之平面圖、第2圖，爲從穿衣側表面所 見的上述生理用衛生棉1之底面圖、第3圖，爲從身體的 臀部方向所見的生理用衛生棉1被裝著於身體之狀態的說 明圖、第4圖，爲被裝設於臀部的生理用衛生棉丨之剖面 圖，相當於在第1圖的IV · I V線之剖面圖。 此生理用Μ生棉1 ’具有出現於第1圖的肌側表面2 、及出現於第2圖的穿衣側表面3。如第4圖所示，此 生理用衛生棉1的基本構造，具有位於肌側表面2的透液 性之表面薄膜4、及位於穿衣側表面3的液體遮斷性之背 面薄膜5、及夾介於表面薄膜4與背面薄膜5之間的液體 吸收層6。而且肌側表面2，在表面薄膜4的左右兩側部 安裝有不透液性的側方薄膜7、7。此側方薄膜7、7延伸 於縱長方向且被接著固定於上述表面薄膜4的左右兩側部 。之後，藉由此側方薄膜7、7形成之後說明的防漏壁2 5 M269049 (7) 如第1圖所示般，液體吸收層6，具有朝向前方爲 凸曲線形狀的前緣部6 a、及朝向後方爲凸曲線形狀的後 緣部6 b、及直線狀延伸於縱長方向（Y方向）的右側緣 部6 c及左側緣部6 d。 生理用衛生棉1的前緣部1 a係朝向前方爲凸曲線形 狀’在此前緣部1 a與上述液體吸收層6的前緣部6a之間 ’藉由在表面薄膜4與背面薄膜5之間塗抹熱熔型接著劑 且施行壓紋花樣加工壓著而接著。生理用衛生棉1的後緣 部1 b係朝向後方爲凸曲線形狀，在此後緣部1 b與上述液 體吸收層6的後緣部6b之間，也在表面薄膜4與背面薄 膜5之間用上述同樣的做法而接著。此生理用衛生棉1， 縱長方向中心線Oy的前緣部1 a至後緣部1 b爲止的縱長 方向之全長尺寸爲2 3 0〜45 0mm的範圍。 在液體吸收層6的右側緣部6 c之外側，上述背面薄 膜5與上述側方薄膜7以熱熔型接著劑接著固定，在液體 吸收層6的左側緣部6 d之外側，上述背面薄膜5與側方 薄膜7以熱熔型接著劑接著固定。 生理用衛生棉1的硬性，在安裝液體吸收層6的區域 、及比液體吸收層6的右側緣部6 c及左側緣部6 d更左右 外側的區域不同。此實施形態的生理用衛生棉1，在比上 述右側緣部6 c及左側緣部6 d更左右外側的區域，接著背 面薄膜5與側方薄膜7且硬性低的部份爲翼部。此生理用 衛生棉1，介由縱長方向中心線Oy而爲左右對稱形狀， -10- (8) M269049 從右側緣部6c延伸於外側的翼部、與從左側緣部6d延伸 於外側的翼部之形狀也是對稱的形狀。 上述翼部的一部份成爲反折翼部Π。此反折翼部Π 突出於左右兩側方。此反折翼部 Π，存在於在前方生理 用衛生棉1的寬度尺寸成爲最小之前方起點1 2、與在後 方生理用衛生棉1的寬度尺寸成爲最小之後方起點1 3所 挾住的範圍。而且，上述反折翼部1 1的緣部1 1 a的形狀 大約爲梯形。 將從上述前方起點1 2至後方起點1 3爲止的縱長方向 之尺寸平分爲二半而延伸於横寬方向（X方向）的線爲横 寬方向基準線X 1。在穿著此生理用衛生棉1時，上述横 寬方向基準線X1與縱長方向中心線〇 y的交叉點附近， 成爲與陰道口的中心一致之標準。 上述翼部之中的比前方起點1 2更前方部份係爲前方 翼部1 5。前方翼部1 5的左右兩側之緣部1 5 a，爲從上述 前方起點1 2隨著越往前方，衛生棉的寬度尺寸漸漸變大 ，之後往前緣部1 a寬度尺寸漸漸變小的形狀。 上述翼部之中的後方部份係爲後方翼部2 1。此後方 翼部2 1，從位於比上述後方起點1 3更後方的突出起點2 2 ，朝向生理用衛生棉1的後緣部1 b而形成。如第1圖所 示，將從液體吸收層6的上述右側緣部6 c及左側緣部6 d 分別往後方延伸的假想線，與生理用衛生棉1的後端之交 叉點做爲（i )時，上述後方翼部2 1係位於從上述突出起 點2 2至上述交叉點（i )爲止的範園。而且，左右兩側的 -11 - M269049 Ο) 交叉點（i )與交叉點（i )之間爲上述後緣部1 b。 上述後方翼部21，具有從上述突出起點22隨著越往 後方，生理用衛生棉1的寬度尺寸漸漸變大的前方緣部 2 1 a。此前方緣部2 1 a係爲直線狀或約直線狀。或者，上 述前方緣部2 1 a，係爲比後方翼部2 1的緣部之任一部份 曲率半徑大的曲線狀，亦可以形成於朝向左右兩外側的凸 出部，或朝向縱長方向中心線〇 y的凸出部。 上述後方翼部2 1，在上述前方緣部2 1 a的後端部， 具有該曲率半徑急遽變小的前方彎曲部2 1 b。後方翼部2 1 在比前方彎曲部2 1 b更後方部份具有側方緣部2 1 d。此側 方緣部2 1 d的曲率半徑比上述前方彎曲部2 1 b更大，且爲 在左右兩外側朝向凸出側的曲線狀。在上述側方緣部2 1 d 的後方，安裝有該曲率半徑急遽變小的後方彎曲部2 1 e。 比此後方彎曲部2 1 e更後方，係爲比上述後方彎曲部2 1 e 曲率半徑更大，或者約直線狀的後方緣部2 1 f。 將從上述縱長方向中心線〇 y至緣部爲止的尺寸做爲 翼部的半幅尺寸，則此半幅尺寸，從上述突出起點2 2往 後緣部1 b漸漸變大而成爲前方彎曲部2 1 b，更且隨著從 前方彎曲部2 1 b往後緣部1 b，半幅尺寸約略變大，成爲 半幅尺寸變成最大的最大幅部2 1 c。在側方緣部2 1 d，半 幅尺寸從上述最大幅部2 ] c往後方彎曲部2 1 e漸漸變小， 在比後方彎曲部2 1 e更後方，往後緣部1 b，半幅尺寸相 對地急遽的結束。 第1圖所示的實施形態，在比將生理用衛生棉1於縱 -12- M269049 (10) 長方向（Y方向）平分爲二半而延伸於横寬方向（X方向 )的横寬方向中心線Οχ更前方，位有後方起點13，在比 上述横寬方向中心線Οχ更後方’位有突出起點22。在上 述後方起點I 3與突出起點2 2之間，生理用衛生棉1的半 幅尺寸約略一定。並且，在反折翼部Η與後方翼部2 1之 間，緣部爲朝向縱長方向中心線〇y的凸出狀之曲線狀時 ，半幅尺寸成爲最短的部份，在上述後方起點1 3而且成 爲突出起點2 2。 上述最大幅部2 1 c，位於比後方翼部2 1的縱長方向 之尺寸的中心更前方。在將後方翼部2 1的縱長方向之長 度尺寸，亦即從上述突出起點22至生理用衛生棉1的後 緣部1 b (上述交叉點（i ))爲止的縱長方向之長度尺寸 做爲La，將從上述突出起點22至最大幅部2 1 c爲止的縱 長方向之尺寸做爲Lb時，Lb爲La的1/2以下。最好Lb 爲La的0.4倍以下，更且最好爲〇 . 3 5倍以下。 從上述横寬方向基準線X 1至最大幅部2 1 c爲止的，縱 長方向之尺寸L c，最好爲5 0 m m以上1 5 0 m m以下，更且 最好爲7 〇 m m以上1 2 0 m m以下。 若最大幅部2 1 c的位置設定在上述尺寸範圍內，則在 比肛門更略後方的區域’後方翼部2 1往左右變大，容易 防止經血往斜後方的洩漏，而且也容易防止後方翼部2】 的皺褶及捲曲。 上述突出起點2 2，最好從上述横寬方向基準線χ ]起 在後方3 0〜9 0 m m的位置。若未滿3 0 m m，則恐有後方翼 -13- M269049 (11) 部2 1的前方緣部2 1 a從內褲的褲襠部變大突出之虞，若 超過9 0 m m，則後方翼部2 1與横寬方向基準線X 1過於分 開，不易有效的發揮利用後方翼部2 1的洩漏防止效果。 上述前方彎曲部2 1 b與最大幅部2 1 c、的縱長方向之距 離爲2 0 m m以內’最好是在I 〇 nl nl以內。再者’更且最好 上述前方彎曲部2 1 b與最大幅部2】c約略一致。 而且，上述最大幅部2 1 c的半幅尺寸在縱長方向的一 定之範圍內爲一定値時，此最大幅部2 1 c的前端，最好位 於比上述尺寸La的1/2更前方且在上述尺寸的範圍內， 更且最好最大幅部2 1 c的前端與後端雙方，位於比上述尺 寸La的1/2更前方且在上述尺寸的範圍內。 後方翼部2 1的上述最大幅部2 1 c之半幅尺寸，最好 爲60〜120mm的範圍。而且，從上述液體吸收層6的右 側緣部6c及左側緣部6d至各最大幅部2 1 c爲止的寬度尺 寸，最好分別爲2 0〜1 〇 〇 m m的範圍，更且最好爲3 0〜 8 0 m m的範圍。若爲2 0〜1 0 0 m m的範圍，則在液體吸收層 6的左右兩側，後方翼部2 1可以充份地擴展。 如第4圖所示般，在生理用衛生棉1的肌側表面2， 折疊相對向於上述側方薄膜7的縱長方向中心線〇y的緣 部而形成折置體7 a ’在此折疊體7 a安裝可發揮往縱長方 向的收縮力之彈性構件。上述折疊體7 a，在比顯示於第] 圖的前方接合線2 6更前方，其整體被接著固定於肌側表 面2，即使在後方接合線2 7的後方，其整體也被接著固 定於肌側表面2。而且，折疊體7a，在上述前方接合線 -14- (12) (12)M269049 2 6與後方接合線2 7之間，如第4圖所示般地爲自由狀態 〇 安裝於上述折疊體7 a的上述彈性構件之彈性收縮力 ’有使前方接合線26與後方接合線27相互地接近的功能 ’當外力不作用於生理用衛生棉1時，在上述前方接合線 26與後方接合線27之間，生理用衛生棉1會肌側表面2 塌陷般地變形，其結果，在前方接合線26與後方接合線 27之間’上述側方薄膜7的折疊體7a，如第4圖所示般 ’從肌側表面立起而形成防漏壁2 5。 如第1圖所示般，上述前方接合線2 6與後方接合線 2 7相對於縱長方向爲往斜邊直線地延伸，前方接合線2 6 的前端，成爲防漏壁2 5的前方立起起點2 6 a，後方接合 線2 7的後端，成爲防漏壁2 5的後方立起起點2 7 a。 如第1圖所示般，將透過上述後方翼部2 1的最大幅 部2〗c而延伸於横寬方向（X方向）的假想線做爲X2時 ，在此假想線X 2的一部份最好立起有防漏壁2 5。或者， 上述防漏壁2 5的後方立起起點2 7 a，最好不要距離比上 述假想線X 2更前方1 〇 m ηι以上。在比後方翼部2 1的上述 最大幅部2 1 c更前方部份的內側存在有防漏壁2 5，在防 漏壁2 5與往横寬方向凸出的後方翼部2 ；[，可確實地輕易 防止經血的洩漏。 再者’上述最大幅部2 1 c在縱長方向以一定的長度範 圍被形成時，上述假想線X 2，可以定義爲通過該最大幅 部2】c的最前端的線。 -15- M269049 (13) 生理用衛生棉1的肌側表面2，在以防漏壁2 5與防 漏壁2 5所挾住的區域，安裝有壓縮表面薄膜4及液體吸 收層6而被形成的壓縮構。上述壓縮溝，具有在縱長方向 彎曲而延伸的縱長壓縮溝3 1、3 1、及在前方位於上述縱 長壓縮溝3 1及3 1之間的前方横寬壓縮溝3 2、及在後方 連接縱長壓縮溝3 1及3 1的後方横寬壓縮溝3 3。 以上述縱長壓縮溝3 1、3 1與前方横寬壓縮溝3 2及後 方橫寬壓縮溝3 3所包圍的區域，成爲縱長的主吸收區域 40。此主吸收區域40，可以區分爲前方主吸收區域40 A 、中間主吸收區域4 0 B及後方主吸收區域4 0 D。前方主吸 收區域4 0 A，於横寬方向基準線X 1的前後在一定的範圍 內延伸，左右的縱長壓縮溝3 1、3 1，爲在縱長方向中心 線 Oy-Oy朝向凸出側的曲線形狀。在上述横寬方向基準 線X 1 - X 1 ’縱長壓縮溝3 1與縱長壓縮溝3 1的間隔變成最 窄小。 中間主吸收區域4 〇 B，以縱長方向中心線〇 X爲中心 而位於該前後的特定範圍內，在此中間主吸收區域40B， 縱長壓縮溝3 1與縱長壓縮溝3 ϊ的間隔變寬，主吸收區域 4 〇往横寬方向擴大。而且在後方主吸收區域4 0 D，縱長 壓縮溝3 1與縱長壓縮溝3〗的間隔，變得比上述中間主吸 收區域40Β更窄小，後方主吸收區域4〇D往縱長方向細 長的形成。 如第1圖所示般，主吸收區域4〇係爲縱長尺寸。主 吸收區域40的後端部40E，最好位於比上述假想線X2更 M269049 (14) 後方。但是，如顯示於第1圖的實施形態，後端部40E也 可以位於比上述假想線X2更前方1 Omm以內的範圍° 在上述前方主吸收區域4 0 A的左右兩側’在縱長壓 縮溝3 1、3 1的外側隔著間隔，形成有側方外側壓縮溝3 4 、3 4。更且，在後方主吸收區域4 0 D的左右兩外側’從 上述縱長壓縮溝3 ]、3 1往橫寬方向隔著間隔，形成有後 方外側壓縮溝3 5、3 5。此後方外側壓縮溝3 5、3 5與縱長 方向中心線 〇 y - 〇 y約略平行而延伸於縱長方向。而且’ 朝向比主吸收區域4 0的後端部4 0 E更後方而延伸。 上述各壓縮溝，從表面薄膜4側，藉由將此表面薄膜 4及液體吸收層6 —倂加熱並且加壓而形成。在各壓縮部 的底部，被壓縮至高密度的高密度壓縮部及比此密度略低 的中密度壓縮部，沿著壓縮部的線圖型交互地形成，整體 成爲低陷的溝漕形狀。但是上述各個的壓縮溝，也可以是 被壓縮至特定密度的點狀物，沿著上述各壓縮部的線圖型 以特定的間隔而形成。 如第4圖所示般，在上述主吸收區域40，表面薄膜4 及液體吸收層6朝向肌側而隆起。並且，此主吸收區域 4 〇 ’在表面薄膜4及液體吸收層6之間，也可以夾介膨鬆 且比液體吸收層6低密度的透液層（緩衝層）。 如第2圖所示般，生理用衛生棉1的穿衣側表面3， 在延伸於反折翼部1 1的背面薄膜5之表面，安裝有前方 感壓接著劑層5 1。此前方感壓接著劑層5 1，係爲矩形的 圖型，以横寬方向基準線X 1-X 1爲中心，在縱長方向的 (15) (15)M269049 前後以特定的長度範圍被設置。 穿衣側表面3，在延伸於後方翼部2 1的背面薄膜5 之表面，安裝有後方感壓接著劑層52。第1圖所示般， 後方感壓接著劑層5 2，其一部份係位於後方翼部2 1的最 大幅部2 1 c亦即，上述假想線X2横切後方感壓接著劑層 52 ° 上述後方感壓接著劑層5 2，也可以位於比假想線X2 更前方或後方，但此時，後方感壓接著劑層5 2，最好不 要距離上述假想線X2在1 Omm以上，更且最理想爲不要 距離5mm以上。 而且，後方翼部2 1的穿衣側表面3，在比上述後方 感壓接著劑層5 2更後方位置，也可以再添加其他的後方 感壓接著劑層。 如第2圖所示般，生理用衛生棉1的穿衣側表面3， 在挾住縱長方向中心線 Ο y - 〇 y的左右兩側，安裝有延伸 於縱長方向的中央感壓接著劑層5 4、5 4。 以下說明形成生理用衛生棉1的各材料之最佳例子。 表面薄膜4係有透液性，用通氣型不織布、射流噴網 型不織布或者形成有多數的透液孔之樹脂薄膜所形成。背 面薄膜5係爲液體遮斷性的樹脂薄膜，使用具通氣性者。 液體吸收層6係以紙獎的層疊體、及紙漿與高吸收性 聚合體的層疊體、或者以空袋法層疊纖維素系纖維與合成 樹脂纖維，並用接著劑來固定纖維間的空袋型不織布等所 形成。 -18- (16) (16)M269049 其次，側方薄膜7係具液體遮斷性，最好使用被施以 防水處理者。做爲形成側方薄膜7的材料，可以使用熔噴 不方‘型不織布及紡黏型不織布，或者紡黏型不織布/熔噴 紡黏型不織布/紡黏型不織布的層疊不織布等。 感壓接者劑層5 1、5 2、5 4係以橡膠系的熱融合型接 著劑等所形成。 第3圖及第4圖係顯示上述生理用衛生棉1被裝著於 女性的身體7 0之狀態。並且，在第4圖，圖示爲生理用 衛生棉1與身體分開，但是實際上生理用衛生棉1的肌側 表面2係緊貼於身體。 此生理用衛生棉1，以縱長方向中心線〇 y - 〇 y與横寬 方向基準線X 1 - X 1的交叉點附近，一致於女性的陰道口 之中心爲標準而穿著。以該狀態，將反折翼部1 1從內褲 的腿部開口反折至褲襠部的外側，將裝設在反折翼部11 的前方感壓接著劑層5 1接著於內補的褲檔部之外面。而 且，藉由中央感壓接著劑層 5 4，使生理用衛生棉1的穿 衣側表面3之中央部份，接著於內褲的褲襠部至後半身的 下部之內面。 如第3圖所示般，後方翼部2 1，以在內褲的後半身 之內面左右地展開的狀態，該穿衣側表面，藉由後方感壓 接著劑層5 2而被接著固定於內褲的內面。 此生理用衛生棉1，藉由防漏壁25的縱長方向之彈 性收縮力，肌側表面2塌陷般地變形，如第4圖所示般， 防漏壁2 5從肌側表面2立起般地變形。 -19- M269049 (17) 在穿著狀態方面，如上所述’縱長方向中心線0y-〇y 與横寬方向基準線X】-X 1的交叉部份及該周圍抵接於女 性的陰道口，前方主吸收區域4 0 A與中間主吸收區域4 0 B 的中間部份相對向於會陰部，中間主吸收區域40B的前方 部份相對向於肛門。之後如第4圖所示般，從中間主吸收 區域40B至後方主吸收區域40D爲止，變成從身體70的 肛門順沿著臀部的溝7 1，後方主吸收區域40D的後方部 份，亦即比主吸收區域4 0的後端部4 0 E更前方5〜2 0 m m 左右的範圍相對向於尾骨。 從陰道口排出的經血，主要被給予至前方主吸收區域 40 A，透過表面薄膜4而在液體吸收層6被吸收。因爲主 吸收區域4 0被以縱長壓縮溝3 1挾住，所以可以用上述縱 長壓縮溝3 1限制經血往横寬方向的擴散。 上述主吸收區域4 0爲縱長尺寸，從中間主吸收區域 4 0B至後方主吸收區域40D爲止，從會陰部經過肛門往尾 骨延伸。之後此部份，藉由從內褲的胯股部往後半身延伸 的彈性帶62，如第4圖所示般，使進入臀部的溝內而變 形。 因此，身體7 0爲就寢姿勢時，從陰道口於短時間內 被排出較多量的經血，即使此經血經由生理用衛生棉1的 肌側表面2移住後方，也可以藉由中間主吸收區域40B及 後方主吸收區域4 0 D，來防止經血擴散。 在身體7 0就寢時爲側躺姿勢等時，經血會從上述中 間主吸收區域40B或後方主吸收區域40D往斜後方流出 -20- M269049 (18) 。此時’萬一即使經血越過縱長壓縮溝3 1及後方外側壓 縮溝3 5，更且越過防漏壁2 5，因爲在該側方外側存在有 後方翼部2 1的最大幅部2 1 c，所以可以在後方翼部2 1擋 住該經血，易於防止往生理用衛生棉1外面的經血之滲出 〇 如第3圖所示般，生理用衛生棉1的後方翼部2 1， 在內褲6 1的後半身寬廣展開而設置，但是後方翼部2 1的 最大幅部2 1 c，相對向於臀部下方位置，在後半身隨著越 往上方，生理用衛生棉1的寬度尺寸漸漸變得窄小。 比此生理用衛生棉1的横寬方向中心線〇x-〇x更前 方部份，在胯股部被挾於腿部之間，而且藉由安裝於反折 翼部1 1的感·壓接著劑層51，而被牢牢地固定在內褲61 的褲襠部之外面。因此，身體7 0移動時，比生理用衛生 棉1的横寬方向中心線Ο X - Ο X更前方部份，在內褲6 1的 內部不易往左右大幅地移動。 針對於此，在比生理用衛生棉1的横寬方向中心線 〇x-〇x更後方部份，隨著身體70的移動，將縱長方向中 心線〇y與横寬方向中心線0x的交叉點0xy附近做爲支 點而易產生往左右方向的移動Μ。此時的生理用衛生棉1 的左右方向的移動Μ的量，隨著遠離上述交叉點Ox y而 變大。 如以往般，若生理用衛生棉的最大幅部係在接近生理 用衛生棉的後緣之位置，則此最大幅部在遠離上述交叉點 〇 X y的位置而左右方向的移動Μ的量變大。因此在最大 -21 - M269049 (19) 幅部容易產生皺褶及內褲6】的捲曲。針對於此’若裝著 上述生理用衛生棉1，則因爲通過最大幅部2 1 c的假想線 X2，係在接近上述交叉點Oxy的位置，所以此最大幅部 2 1 c之左右方向的移動Μ的量會相對地變小。而且在此最 大幅部2 1 c的內側安裝有後方感壓接著劑層5 2 ’因爲此 部份被牢牢地固定於內褲6 1，所以在最大幅部2 U不易 於後方翼部2〗產生皺褶及捲曲。 而且，如第3圖所示般，因爲在生理用衛生棉1的後 緣部：I b之寬度尺寸相對地較小， 所以即使在此部份的左右方向的移動Μ的量變大’ 在此後緣部1 b也不易生皺褶及捲曲。 如此，因爲是難以產生生理用衛生棉1的後方部份之 皺褶及捲曲的構造，所以上述皺褶不會傳至横寬方向中心 線〇x更前方，生理用衛生棉]整體爲安定的狀態而不易 位置脫落。 而且，縱長壓縮溝3 1爲高密度、高硬性，被此縱長 壓縮溝3 1挾住的主吸收區域4 0會膨鬆且隆起而易於保持 該形狀。如上所述從中間主吸收區域4 0 B至後方主吸收區 域4〇D爲止，從會陰部到尾骨會順沿著臀部的溝7 1。但 是，在後方主吸收區域4 0 D的後端部4 0 E的左右兩側位 有後方翼部2的最大幅部2 1 c，因爲此最大幅部2】c以後 方感壓接著劑層5 2牢牢地固定於內褲6 1，所以後方主吸 收區域4 0 D不易左右地移動。 更且，因爲作用於此最大幅部2 1 c.的横寬方向的移動 -22- M269049 (20) Μ的量很小，所以針對於上述後方主吸收區域40D會往 左右移動的力及起皺褶的力都不易起作用。因此，後方主 吸收區域40D因緊貼於臀部的溝7 1之狀態而不易左右地 移動，後方主吸收區域40D與身體之間不易產生空隙’ 也就不易產生經血往後方的洩漏。 第5圖爲從肌側表面來看本創作的第2實施形態之生 理用衛生棉1 〇 〇的平面圖、第6圖爲從穿衣側表面來看上 述生理用衛生棉1 0 0的底面圖。 此生理用衛生棉1 00，係提供一種比上述第1實施形 態的生理用衛生棉1的縱長方向中心線0 y之縱長方向的 全長尺寸更短的構造爲目的。因此，在第2實施形態的生 理用衛生棉1 00及第1實施形態的生理用衛生棉1，整體 的形狀及各部份的形狀有不同的部份，但是在第2實施形 態的生理用衛生棉1 0 0，有關與第1實施形態的生理用衛 生棉1因相同之目的而安裝之構成，附加與第1實施形態 的生理用衛生棉1相同的符號，省略該詳細說明。 以下，主要以生理用衛生棉]00之中與生理用衛生棉 1不同的部份加以說明。 第2實施形態的生理用衛生棉1 〇 〇，其縱長方向中心 線〇 y的縱長方向之全長尺寸，爲2 0 0〜3 3 0 m m左右。因 此’橫寬方向中心線Ox，位於横切反折翼部n的位置。 而且’在反折翼部1 1與後方翼部2 1的中間部份之縱長方 向的長度尺寸變短，反折翼部1 1的後方起點1 3與後方翼 部2 1的突出起點2 2 —致（大約一致）。 -23- M269049 (21) 在此生理用衛生棉1 00，後方翼部2 1的前方彎曲部 2 1 b與最大幅部2 1 c非常的接近或大約—致。但疋，上述 最大幅部2 1 c，係位於比將後方翼部2 1的縱長方向之長 度尺寸L a平分爲二半的中點更前方。而且，在後方翼部 2 ]的側方緣部2 1 d，從上述最大幅部2 1 c往後方L d的長 度範圍內，安裝有從縱長方向中心線〇y的半幅尺寸大約 相等的平行部2 1 g。 以縱長壓縮溝3 1、3 1、前方橫寬壓縮溝3 2及後方橫 寬壓縮溝3 3所包圍的主吸收區域4 0爲縱長尺寸，但此主 吸收區域4 0的後端部4 0 E，係位於比通過最大幅部2 1 c 的假想線X 2更後方，上述後端部4 0 E，係位於與上述平 行部2 1 g的後端部大約相同的位置。 防漏壁2 5的後方立起起點2 7 a，係位於比上述假想 線X 2更後方，而且上述後方立起起點2 7 a，係位於比上 述平行部2 1 g的後端更後方。 在後方翼部2 1的最大幅部2 ] c的半幅尺寸，與上述 第I實施形態的生理用衛生棉1相同。而且，後方感壓接 著劑層5 2的前端，與上述假想線X2大約一致，在上述 平行部2 1 g的內側存在有上述後方感壓接著劑層5 2的至 少一部份。M269049 (1) IX. Description of the invention [Technical field to which the new type belongs] This creation relates to a sanitary napkin suitable for wearing at bedtime, etc., and particularly to a device provided with a large area covering the buttocks from the patellofemoral area. Sanitary pads on the rear wings. [Prior art] As a sanitary napkin suitable for wearing by women during the physiological period during bedtime, it has a length in the longitudinal direction, and is equipped with anti-folding wings protruding in the lateral direction in both sides. The rear side wing part is attached to the rear side which protrudes from both sides of the width direction. When this sanitary napkin is mounted on the inner side of the panties, the above-mentioned anti-folding flap portion is folded back to the outside of the crotch portion of the panties, and then fixed with a pressure-sensitive adhesive layer. Then, the rear wings are fixed to the inner surface of the rear half of the undergarment through a pressure-sensitive adhesive layer. Each of the sanitary napkins described in Patent Documents 1 to 4 below has a reflexed wing portion and a rear wing portion. These physiological sanitary cottons have rear wings facing the trailing edge of the sanitary napkin, and their width gradually increases. The width dimension becomes maximum near the trailing edge of the sanitary napkin. Further, in Patent Document 1, the pressure-sensitive adhesive layer attached to the surface of the sanitary napkin on the clothing side is attached to the largest portion of the width of the rear wings. [Patent Document 1] Japanese Patent Laid-Open No. 8-3 2 2 8 7 9 [Patent Document 2] Japanese Patent Laid-Open No. 2000-189459 [Patent Document 3] Japanese Patent Laid-Open No. 2 0 0 3-5 2 7 4 3 M269049 ( 2) [Patent Document 4] Japanese Patent Laid-Open No. 2 0 03 -5 2 744 [New Content] ί. Instruction to creation] Problems to be solved by L creation] Any of the above-mentioned conventional sanitary napkins can be fitted with a rear wing to prevent leakage of menstrual blood toward the hips at bedtime. However, in the sanitary napkins described in each of the patent documents, the width dimension of the rear wing portion becomes the largest, and the position is near the trailing edge of the sanitary napkin. Will become smaller. Therefore, when menstrual blood flows obliquely rearward along the muscle side surface of a sanitary napkin when bedtime, etc., the bleeding of this menstrual blood cannot be sufficiently prevented by the rear wings. In addition, when a longitudinal sanitary napkin is attached to the body, the front portion is sandwiched between the thighs of the body, and the above-mentioned reverse flap portion is fixed to the underwear, so this front portion is relatively insignificant. Easy to get out of position. However, the rear part of the sanitary napkin is easily moved left and right with the body's movement around the centerline in the horizontal and horizontal directions, and the movement range moves away from the centerline in the horizontal and horizontal directions, that is, approaches. The rear edge of the tampon becomes larger. In the sanitary napkins described in each of the patent documents, since the width dimension of the rear wing portion becomes larger near the rear edge where the movement in the widthwise direction is large, it is easy to occur in the rear wing portion where the width becomes larger. Wrinkling and curling from the inner surface of underwear. Furthermore, it is described in Patent Document 1 that is -5- M269049 (3) A pressure-sensitive adhesive layer that fixes the rear wing portion to the underwear is installed near the rear edge of the sanitary napkin, but because of this, The tampon easily moves in the width and width direction. Therefore, the tampon is easy to wrinkle around the fixed portion of the pressure-sensitive adhesive layer. Therefore, since the wrinkles and curls generated near the rear edge of the sanitary napkin are transmitted to the front of the sanitary napkin, the entire sanitary napkin is easily deformed, and the mounting position is also unstable. It is described in Patent Documents 2 to 4 that the area surrounded by the embossing pattern on the muscle side surface is formed in an elongated shape in the longitudinal direction. If the longitudinal area surrounded by the embossing pattern is installed in this way, it is difficult to form a gap between the muscle-side surface of the sanitary napkin and the body from the vagina of the femoral part of the woman to the vicinity of the anus. However, as described above, the width of the rear wing is the key. If the sanitary napkin is easily deformed as a whole, the above part, especially the rear part, is separated from the perineum and the anus and positioned in the horizontal direction. The effect of installing the above embossing pattern cannot be fully exerted. The purpose of this work is to provide a sanitary napkin that does not easily deform the rear wing, often covers the buttocks in a large area, and prevents the leakage of menstrual blood from the rear and diagonally behind. [Means to Solve the Problem] This creation has a muscle-side surface and a dressing-side surface, a liquid-absorbing layer that absorbs the liquid given to the muscle-side surface, and a back film that appears on the dressing-side surface. Vertical sanitary napkin, characterized by -6-M269049 (4) It has anti-folding wings that protrude from both sides in the width and width direction, and the protruding starting point from the rear of the anti-folding wings to the tampon. The range up to the trailing edge is projected behind the lateral wings in both sides in the widthwise direction, and the rear wings are more forward than the midpoint of the length in the longitudinal direction from the protruding start point to the trailing edge, from The half-width size in the longitudinal center becomes the largest. In this sanitary napkin, the width dimension becomes the largest at the front part of the rear wing, so it is in a side-lying position at bedtime. Even if menstrual blood flows diagonally to the rear, the menstrual blood can be received at the rear wing, and Can easily prevent the leakage of menstrual blood outside the tampon. Moreover, the longitudinal sanitary napkins move more toward the rear edge in the widthwise direction, but because the width of the rear wings is larger, they are located away from the front edge of the sanitary napkin. Therefore, the movement in the widthwise direction acting on the part with a large width dimension is relatively small, and it is not easy to cause wrinkles and curls in the sanitary napkin. Furthermore, in this creation, it is preferable that the rear wing portion ′ is formed from a position where the half-size becomes the largest toward the rear edge, and the half-size gradually decreases. If the width of the rear wing gradually decreases toward the rear edge, it is possible to avoid the local concentration of the force acting on the rear edge of the rear wing, and it is easy to maintain stability by covering the buttocks with the rear wing. Its shape. Moreover, in this creation, the length dimension in the lengthwise direction from the horizontal width direction reference line that divides the above-mentioned anti-folding wing part into two halves in the lengthwise direction to the position where the half-size dimension becomes the largest is preferably 50 to The range of I 50 mm. Furthermore, in the present creation, the maximum half-size of the rear wing is 値 -7- M269049 (5), preferably in the range of 60 to 120 in in. If the half size of the rear wing is within the above range, the rear wing can cover the buttocks in a wide range from the side of the anus to the rear. In addition, in this creation, a pressure-sensitive adhesive layer is installed on the wearing side surface of the rear wing portion, and this pressure-sensitive adhesive layer exists at the position where the half-size of the rear wing portion becomes the largest, or This part exists within a range of 1 mm before and after it becomes the largest position. The width of the rear wing becomes the largest position and the nearby part. The pressure-sensitive adhesive layer is fixed to the underwear, because this part is a part that is separated from the front edge from the front and moves in the width direction. It is not so large, so the rear wing can be firmly fixed to the underwear with the pressure-sensitive adhesive layer. Therefore, it is difficult to generate pleats in the sanitary napkin around the fixed portion using the pressure-sensitive adhesive layer. In addition, in this work, a compression groove surrounding the liquid absorption region is formed on the muscle-side surface. This compression groove exists at a position where the half-size of the rear wing portion becomes the largest, or is located in front of the position where the maximum becomes 10 Within mm. The compressed groove causes the surrounding part to bulge on the muscle side, and this bulged part is easy to fit tightly from the vaginal opening to the perineum and anus. After that, on both sides of the enclosed portion formed by the compression groove, the width of the rear wing portion becomes larger. Because this portion is firmly fixed to the underwear with a pressure-sensitive adhesive layer, the quilt formed by the compression groove The surrounding part is not easy to be detached from the perineum and anus. Therefore, menstrual blood leaking from the patellofemoral part can be easily received in the surrounded part formed by the compression groove. -8-M269049 (6) [Effect of the creation] In this creation, it is not easy to produce wrinkles and curls on the rear wings, and the rear wings and sanitary napkins as a whole are not easily deformed, and can be maintained in an appropriate position on the body. It can highly exert the function of receiving menstrual blood, making it difficult for menstrual blood to leak to the outside. [Embodiment] [The best embodiment of the creation] FIG. 1 is a plan view of the sanitary napkin 1 of the first embodiment of the present creation as viewed from the muscle side surface, and FIG. 2 is a view from the surface of the garment side The bottom view and FIG. 3 of the above-mentioned physiological sanitary napkin 1 are explanatory diagrams of the state in which the physiological sanitary napkin 1 is mounted on the body as viewed from the hip direction of the body, and FIG. The cross-sectional view of the sanitary napkin 丨 is equivalent to the cross-sectional view taken along line IV and IV in FIG. 1. The physiological M raw cotton 1 'has a muscle-side surface 2 shown in Fig. 1 and a clothing-side surface 3 shown in Fig. 2. As shown in FIG. 4, the basic structure of the sanitary napkin 1 includes a liquid-permeable top film 4 on the muscle-side surface 2 and a liquid-barrier back film 5 on the wear-side surface 3, and The liquid absorbing layer 6 is interposed between the front film 4 and the back film 5. The muscle-side surface 2 is provided with liquid-impermeable side films 7 and 7 on the left and right sides of the surface film 4. The side films 7 and 7 extend in the longitudinal direction and are fixed to the left and right side portions of the surface film 4. Then, a leak-proof wall 2 5 to be described later is formed by the side films 7, 7. M269049 (7) As shown in FIG. 1, the liquid absorbing layer 6 has a front edge portion 6a having a convex curve shape toward the front. And a rear edge portion 6 b having a convex curve shape toward the rear, and a right edge portion 6 c and a left edge portion 6 d extending linearly in the longitudinal direction (Y direction). The front edge portion 1 a of the sanitary napkin 1 has a convex curve shape toward the front. 'Between the front edge portion 1 a and the front edge portion 6 a of the liquid absorbing layer 6,' A hot-melt type adhesive is applied in between, and embossing is performed to press and adhere. The rear edge portion 1 b of the sanitary napkin 1 is convexly curved toward the rear, and between the rear edge portion 1 b and the rear edge portion 6 b of the liquid absorbing layer 6, and also between the surface film 4 and the back film 5. Continue in the same way as above. This sanitary napkin 1 has a length in the longitudinal direction from the leading edge portion 1 a to the trailing edge portion 1 b of the longitudinal centerline Oy in the range of 230 to 450 mm. On the outside of the right edge portion 6 c of the liquid absorption layer 6, the back film 5 and the side film 7 are fixed with a hot-melt adhesive, and on the outside of the left edge portion 6 d of the liquid absorption layer 6, the back film 5 and the side film 7 are fixed with a hot-melt adhesive. The rigidity of the sanitary napkin 1 is different in the region where the liquid-absorbent layer 6 is mounted and in the region further to the left and right than the right-side edge portion 6 c and the left-side edge portion 6 d of the liquid-absorbent layer 6. The sanitary napkin 1 according to this embodiment has wing portions in the lower left and right outer regions than the right edge portion 6c and the left edge portion 6d, followed by the back film 5 and the side film 7 and having low rigidity. This sanitary napkin 1 has a left-right symmetrical shape through the longitudinal centerline Oy. -10- (8) M269049 extends from the right edge portion 6c to the outer wings and from the left edge portion 6d to the outside. The shape of the wings is also symmetrical. A part of the above-mentioned wing part becomes a reverse folding wing part Π. This anti-folded wing portion Π protrudes from the left and right sides. This anti-folding wing portion Π exists in the range where the front sanitary napkin 1 becomes the smallest starting point 1 before the width dimension becomes the smallest, and the rear sanitary napkin 1 becomes the smallest starting point 1 3 after the width dimension becomes the smallest. . In addition, the shape of the edge portion 1 1 a of the above-mentioned folded-back wing portion 11 is approximately trapezoidal. The length in the longitudinal direction from the front starting point 12 to the rear starting point 13 is divided into two halves, and a line extending in the widthwise direction (X direction) is the widthwise reference line X1. When this sanitary napkin 1 is worn, the vicinity of the intersection of the horizontal reference line X1 and the longitudinal center line 0 y becomes a standard consistent with the center of the vaginal opening. Among the above-mentioned wing portions, a portion further forward than the forward starting point 12 is the forward wing portion 15. The front and rear edge portions 15a of the front wing portion 15 are 15a, and the width of the sanitary napkin gradually increases from the front starting point 12 to the front, and then the width of the sanitary napkin gradually increases toward the front edge 1a. Small shape. The rear part of the wing parts is the rear wing part 21. The rear wing portion 21 is formed from a protruding start point 2 2 located further rearward than the rear start point 1 3 toward the trailing edge portion 1 b of the sanitary napkin 1. As shown in FIG. 1, an imaginary line extending from the right edge portion 6 c and the left edge portion 6 d of the liquid absorbing layer 6 to the rear side and the rear end of the sanitary napkin 1 are defined as (i ), The rear wing portion 21 is a fan garden located from the protruding start point 22 to the intersection (i). The left and right -11-M269049 〇) The intersection (i) and the intersection (i) are the trailing edge portion 1 b. The rear wing portion 21 has a front edge portion 2 1 a gradually increasing in width from the protruding starting point 22 toward the rear. The front edge portion 2 1 a is linear or approximately linear. Alternatively, the front edge portion 2 1 a is a curved shape having a larger radius of curvature than any portion of the edge portion of the rear wing portion 21, and may also be formed in a convex portion facing the left and right outer sides, or oriented vertically. Projection in the direction centerline 〇y. The rear wing portion 21 has a front curved portion 2 1 b at a rear end portion of the front edge portion 2 1 a, which has a sharply reduced radius of curvature. The rear wing portion 2 1 has a side edge portion 2 1 d in a rearward portion than the forward curved portion 2 1 b. The radius of curvature of this side edge portion 2 1 d is larger than that of the aforementioned front curved portion 2 1 b and is a curved shape that faces the convex side on the left and right outer sides. Behind the side edge portion 2 1 d, a rear curved portion 2 1 e having a sharply reduced curvature radius is attached. The rear curved portion 2 1 e is further rearward than the rear curved portion 2 1 e, and has a larger radius of curvature or a rectilinear rear edge portion 2 1 f. Taking the length from the longitudinal centerline 0y to the edge portion as the half-width dimension of the wing portion, the half-width dimension gradually increases from the protruding starting point 2 2 to the rear edge portion 1 b to become the forward curved portion 2 1 b, and from the front curved portion 2 1 b to the trailing edge portion 1 b, the half-width size becomes slightly larger, and becomes the largest width portion 2 1 c where the half-width size becomes the largest. At the lateral edge portion 2 1 d, the half-width size gradually decreases from the above-mentioned largest width portion 2] c to the rear curved portion 2 1 e, and further rearward than the rear curved portion 2 1 e, to the rear edge portion 1 b, the half-width size A relatively hasty end. The embodiment shown in Fig. 1 extends in the widthwise direction (X direction) in half by dividing the sanitary napkin 1 in longitudinal direction -12- M269049 (10) into two halves. The center line 0x is further forward and has a rear starting point 13 and is located behind the centerline 0x in the widthwise direction. Between the rear starting point I 3 and the protruding starting point 2 2, the half size of the sanitary napkin 1 is approximately constant. In addition, when the edge portion is a convex curve toward the longitudinal centerline 0y between the reverse-folded wing portion Η and the rear wing portion 21, the half-width dimension becomes the shortest portion, and at the rear starting point 1 3 and become the prominent starting point 2 2. The maximum width portion 2 1 c is located further forward than the center of the longitudinal dimension of the rear wing portion 21. The length dimension in the longitudinal direction of the rear wing portion 21, that is, the length dimension in the longitudinal direction from the protruding starting point 22 to the trailing edge portion 1b of the sanitary napkin 1 (the intersection (i)) As La, when the dimension in the lengthwise direction from the protruding start point 22 to the maximum width portion 2 1 c is defined as Lb, Lb is 1/2 or less of La. Preferably Lb is 0 for La. 4 times or less, and more preferably 0. 3 5 times or less. From the horizontal reference line X 1 to the maximum width 2 1 c, the length L c in the longitudinal direction is preferably 50 mm or more and 150 mm or less, and more preferably 70 mm or more 1 Less than 20 mm. If the position of the maximum width portion 2 1 c is set within the above-mentioned size range, the rear wing portion 2 1 becomes larger to the left and right in a region slightly behind the anus, and it is easy to prevent menstrual blood from leaking diagonally to the rear, and it is also easy to prevent the rear Wings 2] Wrinkled and curled. It is preferable that the protruding start point 22 is at a position of 30 to 90 mm from the horizontal and width direction reference line χ]. If it is less than 30 mm, there may be a rear wing-13- M269049 (11) The front edge 2 1 of the part 2 1 a may become larger and protrude from the crotch of the panties. If it exceeds 90 mm, the rear wing 2 1 is too far apart from the reference line X 1 in the width and width direction, and it is not easy to effectively use the leakage prevention effect of using the rear wings 21. The distance between the front curved portion 2 1 b and the maximum width portion 2 1 c in the longitudinal direction is preferably within 20 mm, and is preferably within IO nl nl. Furthermore, it is more preferable that the above-mentioned forward curved portion 2 1 b is approximately the same as the maximum width portion 2] c. In addition, when the half-width dimension of the maximum width portion 2 1 c is constant within a certain range in the longitudinal direction, the leading end of the maximum width portion 2 1 c is preferably located in front of 1/2 of the size La and Within the range of the above-mentioned size, it is more preferable that both the front end and the back end of the largest width portion 2 1 c are located further in front of and within the range of the above-mentioned size La than 1/2 of the above-mentioned size La. The half-width size of the aforementioned largest width portion 2 1 c of the rear wing portion 21 is preferably in the range of 60 to 120 mm. The width dimension from the right edge portion 6c and the left edge portion 6d of the liquid absorbing layer 6 to each of the largest width portions 2 1 c is preferably in the range of 20 to 100 mm, and more preferably 30 to 80 mm range. If it is in the range of 20 to 100 mm, the rear wings 21 can be sufficiently expanded on the left and right sides of the liquid absorbing layer 6. As shown in FIG. 4, on the muscle-side surface 2 of the sanitary napkin 1, a folded portion 7 a ′ is formed by folding an edge portion facing the longitudinal center line 〇y of the lateral film 7 here. An elastic member capable of exerting a contraction force in the longitudinal direction is attached to the folded body 7a. The above-mentioned folded body 7 a is further forwardly fixed to the muscle-side surface 2 than the front joint line 2 6 shown in the figure. Even after the rear joint line 2 7 is entirely fixed to the muscle side surface 2 Muscle side surface 2. Further, the folded body 7a is in a free state as shown in FIG. 4 between the front bonding line -14- (12) (12) M269049 2 6 and the rear bonding line 2 7. It is attached to the folded body 7. a The elastic contraction force of the elastic member "a has a function of bringing the front bonding wire 26 and the rear bonding wire 27 closer to each other" when the external force does not act on the sanitary napkin 1, the front bonding wire 26 and the rear bonding wire 27 Between them, the sanitary napkin 1 deforms like the muscle side surface 2 collapses. As a result, the folded body 7a of the lateral film 7 is located between the front bonding line 26 and the rear bonding line 27, as shown in FIG. Generally, the leak-proof wall 25 is formed from the muscle-side surface. As shown in FIG. 1, the front bonding line 26 and the rear bonding line 27 extend linearly to the oblique side with respect to the longitudinal direction, and the front end of the front bonding line 2 6 forms a forward standing position of the leak-proof wall 25. The starting point 2 6 a and the rear end of the rear bonding wire 27 are the starting points 2 7 a standing behind the leak-proof wall 25. As shown in FIG. 1, when X2 is an imaginary line extending in the widthwise direction (X direction) through the largest width portion 2 c of the rear wing portion 21 described above, a part of the imaginary line X 2 is used here. It is best to stand up with leak-proof walls 2 5. Alternatively, it is preferable that the starting point 27a is erected behind the leak-proof wall 25, and it is preferable that the distance is not more than 10 m in front of the imaginary line X2. A leak-proof wall 25 exists on the inner side of the front portion than the maximum width portion 2 1 c of the rear wing portion 21, and the leak-proof wall 25 and the rear wing portion 2 protruding in the widthwise direction; [, It is possible to easily and reliably prevent the leakage of menstrual blood. Furthermore, when the maximum width portion 2 1 c is formed in a certain length range in the longitudinal direction, the imaginary line X 2 may be defined as a line passing through the foremost end of the maximum width portion 2] c. -15- M269049 (13) On the muscle side surface 2 of the sanitary napkin 1, a compression surface film 4 and a liquid absorbing layer 6 are mounted on the area surrounded by the leak-proof wall 25 and the leak-proof wall 25. The formation of a compressed structure. The compression groove includes longitudinal compression grooves 3 1 and 3 1 which are bent and extended in the longitudinal direction, and forward lateral wide compression grooves 3 2 which are located between the longitudinal compression grooves 3 1 and 31 in the front, and The rear horizontally wide compression grooves 3 1 and 3 1 are connected to the rear. The area surrounded by the longitudinal compression grooves 31, 31, the front transverse width compression groove 32, and the rear transverse width compression groove 33 is the longitudinally long main absorption area 40. This main absorption region 40 can be divided into a front main absorption region 40 A, a middle main absorption region 4 0 B, and a rear main absorption region 40 D. The front main absorption area 40 A extends in a certain range before and after the reference line X 1 in the width and width direction. The left and right longitudinal compression grooves 3 1 and 3 1 are convex toward the center line Oy-Oy in the lengthwise direction. Side curve shape. The distance between the longitudinal compression grooves 31 and the longitudinal compression grooves 31 at the reference line X 1-X 1 'in the widthwise direction is the narrowest. The middle main absorption region 40B is located in a specific range around the longitudinal centerline 0X as the center, and in this middle main absorption region 40B, the interval between the longitudinal compression groove 31 and the longitudinal compression groove 31 As it widens, the main absorption region 40 is widened in the widthwise direction. In the rear main absorption region 40 D, the interval between the longitudinal compression groove 31 and the longitudinal compression groove 3 becomes narrower than the above-mentioned middle main absorption region 40B, and the rear main absorption region 40D goes in the longitudinal direction. Slender formation. As shown in FIG. 1, the main absorption region 40 is of a longitudinal dimension. The rear end portion 40E of the main absorption region 40 is preferably located further behind M269049 (14) than the imaginary line X2. However, as shown in the embodiment shown in FIG. 1, the rear end portion 40E may be located within a range of 1 mm ahead of the imaginary line X2 °. The left and right sides of the front main absorption area 40 A may be compressed in a lengthwise direction. The outer sides of the grooves 3 1 and 31 are spaced apart from each other to form lateral outer compression grooves 3 4 and 3 4. Furthermore, at the left and right outer sides of the rear main absorption region 40D, the rear outer compression grooves 35, 35 are formed at intervals in the widthwise direction from the longitudinal compression grooves 3], 31 described above. The rear outer compression grooves 35 and 35 are approximately parallel to the longitudinal centerline 〇 y-〇 y and extend in the longitudinal direction. Further, '' extends toward the rear side than the rear end portion 40 E of the main absorption region 40. Each of the compression grooves is formed by heating and pressing the surface film 4 and the liquid absorbing layer 6 from the surface film 4 side. At the bottom of each compression section, a high-density compression section compressed to a high density and a medium-density compression section slightly lower in density are alternately formed along the line pattern of the compression section, and the overall shape is a low-pitched gully. However, each of the compression grooves may be dots compressed to a specific density and formed at specific intervals along the line pattern of each compression section. As shown in FIG. 4, in the main absorption region 40, the surface film 4 and the liquid absorption layer 6 are raised toward the muscle side. In addition, the main absorption region 4 0 'may interpose a bulky liquid-permeable layer (buffer layer) having a lower density than the liquid absorption layer 6 between the surface film 4 and the liquid absorption layer 6. As shown in Fig. 2, the garment-side surface 3 of the sanitary napkin 1 is provided with a front pressure-sensitive adhesive layer 51 on the surface of the back film 5 extending to the reverse-folded wing portion 1 1. This front pressure-sensitive adhesive layer 51 is a rectangular pattern, centered on the horizontal and vertical direction reference lines X 1-X 1, and is longitudinally (15) (15) M269049 before and after the specified length range. Settings. The dressing side surface 3 is provided with a rear pressure-sensitive adhesive layer 52 on the surface of the back film 5 extending to the rear wings 21. As shown in FIG. 1, a portion of the rear pressure-sensitive adhesive layer 5 2 is located at the largest width portion 2 1 c of the rear wing portion 21, that is, the imaginary line X2 crosses the rear pressure-sensitive adhesive layer 52. ° The above-mentioned back pressure-sensitive adhesive layer 5 2 may also be located in front of or behind the imaginary line X2, but at this time, the back pressure-sensitive adhesive layer 5 2 is preferably not more than 1 Omm from the imaginary line X2, more And the most ideal is not to be more than 5mm away. Further, the dressing-side surface 3 of the rear wing portion 21 may be further rearward than the aforementioned rear pressure-sensitive adhesive layer 5 2, and another rear pressure-sensitive adhesive layer may be further added. As shown in FIG. 2, the wearing side surface 3 of the sanitary napkin 1 is attached to the left and right sides of the longitudinal centerline 0 y-〇y, and a central pressure-sensitive adhesive extending in the longitudinal direction is attached.剂 层 5 4,5 4. The best examples of the materials forming the sanitary napkin 1 will be described below. The surface film 4 is liquid-permeable, and is formed of a breathable nonwoven fabric, a spunlaced nonwoven fabric, or a resin film having a large number of liquid-permeable holes. The back surface film 5 is a liquid-blocking resin film, and one having air permeability is used. The liquid absorbing layer 6 is a laminated body with a paper award, a laminated body of pulp and a superabsorbent polymer, or an empty bag type in which cellulose fibers and synthetic resin fibers are laminated by an empty bag method, and an adhesive is used to fix the fibers. Non-woven fabrics are formed. -18- (16) (16) M269049 Secondly, the side film 7 is liquid-blocking, and it is best to use a waterproofing treatment. As a material for forming the side film 7, a meltblown non-woven & spunbond nonwoven fabric, or a spunbond nonwoven / meltblown spunbond nonwoven / spunbond nonwoven laminated fabric can be used. The pressure-sensitive adhesive agent layers 5 1, 5, 2, and 5 are formed of a rubber-based heat-fusion adhesive and the like. Figures 3 and 4 show a state in which the aforementioned sanitary napkin 1 is mounted on a female body 70. In Fig. 4, the sanitary napkin 1 is shown as being separated from the body, but the muscle-side surface 2 of the sanitary napkin 1 is actually closely attached to the body. This sanitary napkin 1 is worn around the intersection of the longitudinal centerline 〇 y 〇 y and the horizontal and width direction reference lines X 1-X 1 and conforms to the center of a woman's vaginal opening. In this state, the fold-back wing portion 11 is folded back from the leg opening of the panty to the outside of the crotch portion, and the pressure-sensitive adhesive layer 5 1 installed on the front of the fold-back wing portion 11 is then attached to the underpants Outside. Further, the central pressure-sensitive adhesive layer 54 is used to make the central portion of the wearing side surface 3 of the sanitary napkin 1 follow the crotch portion of the underwear to the inner surface of the lower portion of the rear body. As shown in FIG. 3, the rear wings 21 are in a state where the inner surface of the rear half of the panties is spread left and right, and the dressing side surface is subsequently fixed to the rear pressure-sensitive adhesive layer 5 2 The underside of the panties. This sanitary napkin 1 is deformed in a collapsed manner by the elastic contraction force of the leak-proof wall 25 in the longitudinal direction. As shown in FIG. 4, the leak-proof wall 25 stands from the muscle-side surface 2. Deformed. -19- M269049 (17) Regarding the wearing state, as described above, the intersection of the centerline 0y-〇y in the longitudinal direction and the reference line X in the widthwise direction X-X1 and the surrounding area abut the female's vaginal opening The middle part of the front main absorption area 40 A and the middle main absorption area 40 B is opposite to the perineum, and the front part of the middle main absorption area 40B is opposite to the anus. Thereafter, as shown in FIG. 4, from the middle main absorption region 40B to the rear main absorption region 40D, it becomes a groove 71 from the anus of the body 70 along the buttocks, and the rear part of the rear main absorption region 40D, that is, A range of about 5 to 20 mm forward from the rear end portion 40 E of the main absorption area 40 is opposed to the coccyx. The menstrual blood discharged from the vaginal opening is mainly given to the front main absorption region 40 A, and is absorbed in the liquid absorption layer 6 through the surface film 4. Since the main absorption region 40 is held by the longitudinal compression grooves 31, the longitudinal compression grooves 31 can be used to limit the diffusion of menstrual blood in the widthwise direction. The above-mentioned main absorption region 40 is of a longitudinal length, and extends from the middle main absorption region 40B to the rear main absorption region 40D from the perineum through the anus to the coccyx. Thereafter, as shown in Fig. 4, the elastic band 62 extending from the patellofemoral portion of the panties to the back of the body is deformed into the groove of the buttocks. Therefore, when the body 70 is in the sleeping position, a large amount of menstrual blood is discharged from the vaginal opening in a short time. Even if this menstrual blood is moved to the rear through the muscle-side surface 2 of the sanitary napkin 1, the middle main absorption region 40B can be used. And the rear main absorption area 40 D to prevent the spread of menstrual blood. When the body 70 is in a side-lying position at bedtime, menstrual blood will flow obliquely backward from the central main absorption area 40B or the rear main absorption area 40D -20- M269049 (18). At this time, even if the menstrual blood crosses the longitudinal compression groove 3 1 and the rear outer compression groove 3 5 and the leakage prevention wall 25, the maximum width 2 1 of the rear wings 2 1 exists on the lateral side. c. Therefore, the menstrual blood can be blocked at the rear wing 21, and it is easy to prevent the bleeding of menstrual blood to the outside of the sanitary napkin 1. As shown in FIG. 3, the rear wing 21 of the sanitary napkin 1 is in underwear. The rear half of 6 1 is set wide open, but the maximum width 2 1 c of the rear wing 21 is relatively lower than the hip, and the width of the sanitary napkin 1 gradually increases in the rear half as it moves upward. Be narrow. It is more forward than the horizontal centerline 0x-〇x of the sanitary napkin 1. It is pinched between the thigh and the thigh, and is mounted on the anti-folding wings 1 1 Next, the agent layer 51 is firmly fixed to the outer surface of the crotch portion of the panty 61. Therefore, when the body 70 is moved, it is more forward than the center line 〇 X-Ο X in the horizontal width direction of the sanitary napkin 1 and it is difficult for the inside of the underpants 6 1 to move significantly to the left and right. In view of this, in the portion rearward of the horizontal and vertical centerline 0x-〇x of the sanitary napkin 1, as the body 70 moves, the vertical and horizontal centerline 0y and the horizontal and horizontal centerline 0x Near the intersection 0xy as a fulcrum, it is easy to generate a movement M in the left-right direction. The amount of movement M in the left-right direction of the sanitary napkin 1 at this time becomes larger as it moves away from the crossing point Ox y. As in the past, if the maximum width of the sanitary napkin is close to the trailing edge of the sanitary napkin, the amount of movement M of the maximum width in the left-right direction at a position far from the intersection θ y will increase. . Therefore, it is easy to produce wrinkles and curls of the panties in the largest -21-M269049 (19). In response to this, if the above-mentioned sanitary napkin 1 is installed, since the imaginary line X2 passing through the maximum width portion 2 1 c is located near the intersection Oxy, the left and right directions of the maximum width portion 2 1 c The amount of moving M will be relatively small. Moreover, a rear pressure-sensitive adhesive layer 5 2 'is installed inside the maximum width 2 1 c because this portion is firmly fixed to the underpants 6 1, so it is not easy for the rear wings 2 to be at the maximum width 2 U. Wrinkles and curls. Furthermore, as shown in FIG. 3, since the width dimension of the trailing edge portion: I b of the sanitary napkin 1 is relatively small, the amount of movement M in the left-right direction in this portion becomes large. The edge portion 1 b is also less prone to wrinkles and curls. In this way, because it is difficult to generate wrinkles and curls in the rear part of the sanitary napkin 1, the above-mentioned wrinkles do not pass to the center line in the widthwise direction 0x further forward, and the sanitary napkin is overall stable The state is not easy to fall off. Further, the longitudinal compression groove 31 is high in density and rigidity, and the main absorption region 40 held by the longitudinal compression groove 31 is bulky and bulged to easily maintain the shape. As described above, from the central main absorption region 40 B to the rear main absorption region 40D, the perineum to the coccyx will follow the groove 71 of the buttocks. However, on the left and right sides of the rear end portion 40 E of the rear main absorption area 40 D, there is a maximum width portion 2 1 c of the rear wing portion 2 because the maximum width portion 2] c pressure-sensitively adheres the adhesive layer at the rear. 5 2 is firmly fixed to the underwear 6 1, so the rear main absorption area 40 D is not easily moved left and right. Moreover, because it acts on this largest width 2 1 c. The amount of movement of -22- M269049 (20) M in the width direction is very small, so the force for the leftward and rightward movement of the main absorption region 40D mentioned above and the wrinkling force are not easily affected. Therefore, the rear main absorption region 40D is difficult to move left and right due to the state that it is in close contact with the groove 71 of the buttocks, and the gap between the rear main absorption region 40D and the body is difficult to produce. Fig. 5 is a plan view of a sanitary napkin 100 according to the second embodiment of the present invention as viewed from the muscle-side surface, and Fig. 6 is a bottom view of the aforementioned sanitary napkin 100 as viewed from the garment-side surface. . The sanitary napkin 100 is intended to provide a structure having a shorter overall length than the longitudinal direction center line 0 y of the sanitary napkin 1 of the first embodiment. Therefore, in the sanitary napkin 100 of the second embodiment and the sanitary napkin 1 of the first embodiment, the overall shape and the shape of each part are different, but the physiological sanitary napkin of the second embodiment is different. The sanitary napkin 100 has a configuration similar to that of the sanitary napkin 1 according to the first embodiment, and the same reference numerals as those of the sanitary napkin 1 according to the first embodiment are added, and detailed description is omitted. In the following, a description will be given mainly with respect to the physiological sanitary napkin] 00 which is different from the physiological sanitary napkin 1. The physiological sanitary napkin 100 of the second embodiment has a length in the longitudinal direction of the centerline 〇 y in the longitudinal direction, and the length is about 2000 to 330 mm. Therefore, the center line Ox in the widthwise direction is located at a position transverse to the anti-folded wing portion n. Furthermore, the length in the longitudinal direction of the middle portion of the reverse fold portion 11 and the rear wing portion 21 becomes shorter, and the rear start point 1 of the reverse fold portion 1 1 and the protruding start point 2 of the rear wing portion 2 1 become shorter. 2-Consistent (approximately consistent). -23- M269049 (21) Here, a sanitary napkin 100 is used, and the forward curved portion 2 1 b of the rear wing portion 2 1 is very close to or approximately the same as the maximum width portion 2 1 c. However, the above-mentioned maximum width portion 2 1 c is located more forward than the midpoint which divides the length dimension L a in the longitudinal direction of the rear wing portion 2 1 into two halves. Moreover, a half-width dimension from the longitudinal centerline 0y is mounted on the side edge portion 2 1 d of the rear wing portion 2] from the maximum width portion 2 1 c to the rear L d. Parallel section 2 1 g. The main absorption region 40 surrounded by the longitudinal compression grooves 3 1, 3, the front transverse width compression groove 3 2 and the rear transverse width compression groove 3 3 is a longitudinal dimension, but the rear end portion of the main absorption region 40 is 40 E is located further behind the imaginary line X 2 passing through the largest width portion 2 1 c, and the rear end portion 40 E is located at approximately the same position as the rear end portion of the parallel portion 2 1 g. The rear rising starting point 27a is located behind the imaginary line X2, and the rear rising starting point 27a is located behind the rear end of the parallel portion 21g. The half-width dimension of the maximum width portion 2] c of the rear wing portion 21 is the same as that of the sanitary napkin 1 of the first embodiment described above. The front end of the rear pressure-sensitive adhesive layer 52 is approximately the same as the imaginary line X2, and at least a part of the rear pressure-sensitive adhesive layer 52 is present inside the parallel portion 21g.
將此生理用衛生棉1 〇 〇裝著於身體時，在前方主吸收 區域40A，横寬方向基準線XI與縱長方向中心線Oy的 交叉點附近係相對向於陰道口。而且，縱長壓縮溝3 1與 縱長壓縮溝3 1的相對向間隔變寬的中間主吸收區域4 0 B M269049 (22) ，係位於縱長方向中心線0 y與橫寬方向中心線〇 x的交 叉點〇xy約略後方，此中間主吸收區域40B相對向於會 陰部附近◦上述主吸收區域4 0，横切假想線X2的部份爲 後方主吸收區域40D，但從假想線X2至後端部40E爲止 的部份相對向於肛門附近。 第2實施形態之生理用衛生棉1 〇 〇，比第i實施形態 的生理用衛生棉1的整體長度尺寸約略稍短，但因爲後方 翼部2 1的最大幅部2 1 c，係位於前方，所以可以有與第1 實施形態的生理用衛生棉1完全相同的效果。 本創作，並不限於上述實施形態的生理用衛生棉1或 100，可以有種種的變化。第7圖至第9圖，後方翼部的 形狀與上述生理用衛生棉1、1 0 0不同，但是後方翼部以 外的構造及尺寸關係，完全與上述上述生理用衛生棉1、 1 0 0相同。 顯示於第7圖的生理用衛生棉1 0 1的後方翼部1 2 1， 該前方部份的形狀與已顯示於第1圖的後方翼部2 1相同 ，但是在該後方部份1 2 2，衛生棉的寬度尺寸急遽地減少 。之後，在後方部份1 2 2，縱長方向的一定範圍內，寬度 尺寸成爲大約一定。 顯示於第8圖的生理用衛生棉20 1的後方翼部22 1， 該前方部份的形狀與已顯示於第]圖的後方翼部2 1相同 ，在該後方部份22 2，衛生棉的寬度尺寸急遽地減少，更 且後方部份2 2 2，越往後緣部]b寬度尺寸漸漸地減少。 顯示於第9圖的生理用衛生棉3 0 1的後方翼部3 2 1， -25- M269049 (23) 該前方部份的形狀與已顯示於第1圖的後方翼部2 ]相同 ’但是在該後方部份3 2 2，衛生棉的寬度尺寸漸次地減少 〇 顯示於第7圖至第9圖的生理用衛生棉1 〇 ]、2 0 1、 3 0 1，因爲後方翼部1 2 1、2 2 1、3 2 1的最大幅部2 1 c係位 於前方，所以與上述生理用衛生棉]同樣地可以防止往斜 後方的經血之洩漏，而且可以在內褲 6 1的內側以安定的 狀態裝著。 但是，如顯示於第1圖的實施形態，後方翼部2 1的 緣部形狀，能夠隨著越往後緣部1 b，寬度尺寸漸漸地減 少，若緣部爲在左右外側朝向凸出側的突曲線形狀，則作 用於生理用衛生棉的起皺褶的力及捲曲的力，不會局部地 集中於緣部的任一部份，而不易產生上述皺褶及捲曲。因 此，後方翼部的形狀最理想係爲顯示於第]圖的實施形態 【圖式簡單說明】 第1圖爲將肌側表面做爲正面側顯示本創作的第】實 施形態之生理用衛生棉的平面圖、 第2圖爲將穿衣側表面做爲正面側顯示本創作的第1 ^ 實施形態之生理用衛生棉的底面圖、 · 第3圖爲從身體的臀部側顯示上述生理用衛生棉被裝 著於身體之狀態的說明圖、 第4圖爲顯示上述生理用衛生棉相對向於臀部的溝之 -26- (24) (24)M269049 狀態，在第I圖的IV-IV線切斷生理用衛生棉的剖面圖、 第5圖爲將肌側表面做爲正面側顯示本創作的第2實 施形態之生理用衛生棉的平面圖、 第6圖爲將穿衣側表面做爲正面側顯示本創作的第2 實施形態之生理用衛生棉的底面圖、 第7圖爲顯示本創作的生理用衛生棉之變形例的平面 圖、 第8圖爲顯示本創作的生理用衛生棉之變形例的平面 圖、 第9圖爲顯示本創作的生理用衛生棉之變形例的平面 圖。 [主要元件符號說明】 1，10 0，101，202，301 ：生理用衛生棉 1 a :前緣 1 b :後緣部 2 :肌側表面 3 :穿衣側表面 4 :表面薄膜4 5 :背面薄膜 6 :液體吸收層 7 :側方薄膜 Μ :反折翼部 I 5 :前方翼部 -27- M269049 (25) 2 1，1 2 1，2 2 1，3 2 1 :後方翼部 2 1 c :最大幅部 2 5 :防漏壁 3 1 ‘·縱長壓縮溝 3 2 :前方橫寬壓縮溝 3 3 :後方橫寬壓縮溝 4 0 :主吸收區域 4 0 A :前方主吸收區域When this physiological sanitary napkin 100 is attached to the body, the vicinity of the intersection of the horizontal and vertical reference line XI and the longitudinal centerline Oy is opposed to the vaginal opening in the front main absorption region 40A. Furthermore, the middle main absorption region 4 0 B M269049 (22) where the relative interval between the longitudinal compression groove 31 and the longitudinal compression groove 31 is widened is located between the longitudinal centerline 0 y and the transverse width centerline. The intersection point x of x is approximately rearward. This intermediate main absorption region 40B is relatively close to the perineum. The above-mentioned main absorption region 40 is a portion that crosses the imaginary line X2 as the rear main absorption region 40D. The portion up to the rear end portion 40E faces the vicinity of the anus. The physiological sanitary napkin 100 of the second embodiment is slightly shorter than the overall length of the physiological sanitary napkin 1 of the i-th embodiment, but because the largest width portion 2 1 c of the rear wing portion 21 is located in the front Therefore, the same effects as those of the sanitary napkin 1 of the first embodiment can be obtained. This creation is not limited to the sanitary napkin 1 or 100 of the embodiment described above, and there can be various changes. In FIGS. 7 to 9, the shape of the rear wings is different from the above-mentioned physiological sanitary napkins 1 and 100, but the structure and size relationship other than the rear wings are completely the same as the above-mentioned physiological sanitary napkins 1 and 100. the same. The rear wing portion 1 2 1 of the sanitary napkin 1 0 1 shown in FIG. 7 has the same shape as the rear wing portion 2 1 shown in FIG. 1, but at the rear portion 1 2 2. The width of the tampon has been reduced sharply. After that, the width dimension becomes approximately constant in a certain range in the longitudinal direction of the rear portion 1 2 2. The rear wing portion 22 1 of the sanitary napkin 20 1 shown in FIG. 8 has the same shape as the rear wing portion 2 1 shown in FIG. The width dimension is sharply reduced, and the rear part 2 2 2 is further reduced toward the rear edge part. B The width dimension is gradually reduced. The rear wing 3 2 1 of the sanitary napkin 3 0 1 shown in FIG. 9, -25- M269049 (23) The shape of the front part is the same as the rear wing 2 shown in FIG. 1] but In the rear portion 3 2 2, the width of the sanitary napkin is gradually reduced. The sanitary napkin 1 shown in FIGS. 7 to 9 is shown in FIG. 7 and FIG. 9 because the rear wings 1 2 1, 2 2 1, 3 2 1 The maximum width 2 1 c is located in the front, so similar to the above-mentioned physiological sanitary napkin] can prevent the leakage of menstrual blood obliquely rearward, and can be stabilized inside the underwear 6 1 Pretend to be. However, as shown in the embodiment shown in FIG. 1, the shape of the edge of the rear wing portion 21 can be gradually reduced as it goes toward the rear edge portion 1 b. If the edge portion faces the convex side on the left and right outer sides, The shape of the convex curve acts on the wrinkling force and curling force of the sanitary napkin, and it does not locally concentrate on any part of the edge, and it is difficult to generate the above-mentioned wrinkles and curls. Therefore, the shape of the rear wing is ideally shown in the figure. [Simplified description of the figure] Figure 1 is the sanitary napkin of the first embodiment of the present invention with the muscle side surface as the front side. Figure 2 and Figure 2 show the bottom surface of the sanitary napkin of the first embodiment of the present invention with the wear-side surface as the front side, and Fig. 3 shows the above-mentioned physiological napkin from the buttocks of the body An explanatory diagram of the state of being placed on the body, and Fig. 4 is a view showing the state of the aforementioned sanitary napkin with respect to the groove of the buttocks, -26- (24) (24) M269049, cut along the line IV-IV of Fig. I Sectional view of a sanitary napkin, Fig. 5 is a plan view showing a sanitary napkin of the second embodiment of the present invention with the muscle-side surface as the front side, and Fig. 6 is the front side of the garment-side surface A bottom view showing a second embodiment of the sanitary napkin of the present invention, FIG. 7 is a plan view showing a modification of the sanitary napkin of the present invention, and FIG. 8 is a view showing a modification of the sanitary napkin of the present invention The plan view and Figure 9 are the display The plan view for a modification of the sanitary napkin. [Description of main component symbols] 1, 10 0, 101, 202, 301: sanitary napkin 1 a: leading edge 1 b: trailing edge portion 2: muscle side surface 3: clothing side surface 4: surface film 4 5: Back film 6: Liquid absorbing layer 7: Side film M: Reverse wing section I 5: Front wing section 27- M269049 (25) 2 1, 1 2 1, 2 2 1, 3 2 1: Rear wing section 2 1 c: maximum width 2 5: leak-proof wall 3 1 '· long compression groove 3 2: front horizontal wide compression groove 3 3: rear horizontal width compression groove 4 0: main absorption area 4 0 A: front main absorption area
40B :中間主吸收區域 40D :後方主吸收區域 40E :後端部 5 2 :感壓接著劑層 -28-40B: middle main absorption area 40D: rear main absorption area 40E: rear end portion 5 2: pressure-sensitive adhesive layer -28-