M270791 ⑴ 八、新型說明 【新型所屬之技術領域】 本創作係有關於一種經血不易滯留在表面，且可被 迅速引導至吸收層的生理用衛生棉。 【先前技術】 一般的生理用衛生棉多爲具有：液吸收層、及包覆 該液吸收層之肌膚側表面的透液性表面薄片。上述表面 薄片係由具多數之液透過孔之開口的樹脂薄膜、或透液 性不織布所形成。 流至生理用衛生棉之肌膚側表面的經血黏度較高， 也有可能因爲穿用者個人的因素或健康狀態，而在短時 間內就會有大量的經血流至生理用衛生棉的表面薄片。 例如：在表面薄片係由具液透過孔之樹脂薄膜所形 成時，可藉由將各個液透過孔的開口面積增大，並提高 液透過孔的開口面積率，即可在短時間內將大量的經血 移行至液吸收層。但是，若液透過孔的開口面積太大’ 或開口面積率太高的話，則生理用衛生棉會因爲接觸到 身體的壓力而使得已被液吸收層所吸收的經血，變得容 易透過上述液透過孔而目視得到，故極易引起穿用者有 不衛生的感覺。 相反地，如果各個的液透過孔的開口面積小，且開 口面積率低的話，則可輕鬆防止經血回流至表面薄片的 表面，並可輕易隱藏被液吸收層所吸收之經血的顏色， -4- (2) (2)M270791 但是，當表面薄片的液透過速度變慢，或是在短時間內 流入大量粘度較高的經血時，經血就會殘留在表面薄片 的肌膚側表面，並因爲接觸到肌膚而容易讓穿用者產生 不適感。 因爲如此，生理用衛生棉的表面構造體，就被要求 爲須具備：液的透過機能、及防止液體回流、及可隱藏 經血顏色等的相反功能了。 對於這樣的須求，以往的生理用衛生棉即具有下述 顯示在生理用衛生棉之肌膚側表面的表面構造體。 於下述專利文獻1中所記載者係爲：生理用衛生棉 的表面材係由排水性薄膜所形成，且在該排.水性薄膜係 具有朝向液吸收層凹陷的多數的凹部。且在該凹部之傾 斜部的一部份，係具有液透過孔。藉由具有這樣的表面 材，即可讓經血自由地移行至液吸收層，且來自液吸收 層的液體也不太會回流，並且也可輕易地隱蔽被液吸收 層所吸收的經血。 於下述專利文獻2至4中所記載者係爲：在液吸收 層的肌膚側表面係具有透液性的表面薄片，並且，朝縱 方向延伸的連續纖絲束係隔著間距，被固定在表面薄片 的肌膚側表面，且位在該固定部與固定部之間的上述連 續纖絲束，係形成了朝肌膚側隆起的多數的環部。因爲 上述連續纖絲束形成了多數的環狀隆起部，所以會給予 穿用者良好的膚觸感’並且，即使經血從液吸收層回流 到表面薄片的表面’該表面也會因爲具有連續纖絲束， -5- (3) (3)M270791 而使經血不易直接接觸到肌膚。 [專利文獻1]特開平1-343 65號公報 [專利文獻2]特開2002-6573 6號公報 [專利文獻3]特開2002-6573 7號公報 [專利文獻4]特開2002-6978 1號公報 【新型內容】 [創作所欲解決之課題] 於上述專利文獻1中所記載者，係在由排水性薄膜 所形成的表面材上，形成多數的凹部，並藉由將經血引 導至上述凹部內，而使經血更易從該凹部內移行至液吸 收層。但是，表面材的開孔只有設在凹部的傾斜部，所 以凹部的頂部係呈不具開孔的平坦狀態。因此，一旦黏 度較高的經血在短時間內大量地流至該表面材時，上述 凹部內會因經血而呈飽和狀態，而使經血容易越過上述 頂部的平坦部份並往周圍擴散。所以，經血就容易殘留 在表面材的肌膚側表面而接觸到肌膚。 此外，專利文獻2至4中所記載者，係爲利用在表 面薄片的表面設有將連續纖絲做成環狀的隆起部，而使 膚觸感良好，並且，即使經血殘留在表面薄片的肌膚側 表面時，也會因爲連續纖絲的存在而可防止上述經血不 會直接接觸到肌膚。但是，將表面薄片的經血導引至液 吸收層的功能，係僅依賴表面薄片的透液功能，所以， 若將該表面薄片的液透過孔的開口面積加大，以提高其 -6- (4) (4)M270791 透液功能時，同樣地也會容易發生液體回流的問題。 本創作爲了解決上述以往的課題，其目的即爲提供 一種即使流入大量經血，仍可迅速地將該經血移行至液 吸收層，並且防止液體回流及隱蔽被液吸收層所吸收之 經血的顏色的效果極佳，甚至膚觸感良好的生理用衛生 棉0 [用以解決課題之手段] 爲達成上述目的，本創作係針對一種具有液吸收層 、及包覆上述液吸收層之肌膚側表面的表面構造體的生 理用衛生棉，其特徵爲： 上述表面構造體係具有：包覆上述液吸收層之肌膚 側表面之透液性的基部薄片、及位於上述基部薄片之肌 膚側表面的表面薄片，上述表面薄片的至少肌膚側表面 係由樹脂薄膜所形成； 因爲上述表面薄片，而從上述基部薄片的肌膚側表 面更加朝向肌膚側隆起，而形成多數的隆起部，且在上 述隆起部的側部’形成有可通至上述基部薄片的側方開 口部。 本創作之生理用衛生棉的表面構造體係由：包覆液 吸收體之具透液機能的基部薄片、及包覆該基部薄片之 至少肌膚側表面係由樹脂薄膜所形成的表面薄片所構成 。在由表面薄片所形成的隆起部形成開口的側方開口部 的同時，在隆起部的正下方也會顯現出上述基部薄片。 (5) (5)M270791 因此，當黏度較高的經血在短時間內大量流入時’上述 經血會經過上述隆起部的側方開口，流至基部薄片，並 透過該基部薄片而被液吸收層所吸收。 此外，由表面薄片所形成的隆起部，係藉由經血本 身的重量而可朝基部薄片變形，所以，經血就會流入鄰 接著變形之隆起部旁的其他隆起部的側方開口部，而到 達基部薄片。因此，當流入大量經血時，該經血仍可迅 速流至液吸收層，故可防止經血擴散到生理用衛生棉的 肌膚側表面。 再者，形成隆起部的表面薄片，因爲其至少肌膚側 是由樹脂薄膜所形成，所以即使經血從液吸收層透過基 部薄片回流，因爲該經血係被表面薄片所包覆，所以經 血不易直接附著到肌膚。並且，因爲表面薄片的肌膚側 表面係由樹脂薄膜所形成，所以表面薄片可掩蓋住被液 吸收層所吸收之經血的顏色，故當目視著穿用中之生理 用衛生棉的肌膚側表面時，就會感覺較衛生。 本創作在上述表面薄片，係在橫方向及縱方向上， 間隔地形成多數在橫方向上間隔，而朝縱方向延伸的細 縫，在橫方向上，上述隆起部即由位於相鄰的上述細縫 與細縫間的上述表面薄片的部份所形成，而在上述隆起 部以外的部份，上述表面薄片與上述基部薄片則彼此接 合在一起。 此外，本創作之上述細縫之橫方向的間隔，係因位 置不同而有所差別，被上述細縫所包夾的幅寬部係朝肌 -8- (6) (6)M270791 膚側隆起，而形成上述隆起部，而比被上述細縫所包夾 之上述幅寬部的寬度尺寸小的幅窄部，則位於比上述隆 起部的頂部，更靠近基部薄片之表面的位置。 如上述般，因爲在表面薄片上加入了細縫，所以可 較輕易地形成上述隆起部及側方開口部。特別是，如上 所述般，因爲在表面薄片上形成了被細縫所畫分出來的 幅寬部及幅窄部，所以在由幅寬部所形成隆起部的構造 中，在隆起部以外的部份，基部薄片係被上述幅窄部所 包覆，或者在幅窄部上形成較低的隆起部。因此，與表 面肌膚的接觸感會較柔軟，並且基部薄片的全區域可被 表面薄片所完全包覆，故可防止經血回流至液吸收層， 並且可藉由表面薄片來掩蔽被液吸收層所吸收的經血的 顏色。 在上述中，上述幅寬部與上述幅窄部，係在橫方向 上交互形成。 例如，本創作可藉由將被上述表面薄片的上述細縫 所包夾的部份，朝肌膚側施以加壓或加壓·加熱步驟， 使其變形而形成隆起部。 或者是，將上述表面薄片朝橫方向擴張，使其在朝 縱方向收縮的狀態下，上述表面薄片會在複數個地方與 上述基部薄片接合，則被細縫與細縫所包夾的部份就會 朝肌膚側隆起，而可形成隆起部。 此外，本創作之上述表面薄片，係爲彼此分離且朝 縱方向連續延伸的複數的帶狀薄片，各個的帶狀薄片係 -9- (7) (7)M270791 在於縱方向上間隔著距離的接合部與上述基部薄片接合 ，並且彼此相鄰的接合部間的上述帶狀薄片的部份，係 從基部薄片朝肌膚側隆起，而形成上述隆起部。 此時，上述帶狀薄片係以間隔的方式被配置在橫方 向，且在相鄰的帶狀薄片之間，係設有包覆上述基部薄 片之表面的包覆樹脂薄膜。 再者，上述包覆樹脂薄膜也可以是具有透液孔者， 或者是不具透液孔者皆可。但是，該包覆樹脂薄膜的透 液機能，最好是低於基部薄片的透液機能。在上述創作 中，在不具隆起部的部份，基部薄片係被包覆樹脂薄膜 所包覆，所以可防止從液吸收層往基部薄片表面之經血 的回流，並且，被液吸收層所吸收的經血的顏色，也可 被表面薄片及包覆樹脂薄膜所掩蔽。 在上述中，可藉由使上述帶狀薄片朝向肌膚側，並 施以加壓或加壓·加熱步驟使其變形，以形成上述隆起 部。 或者是，使基部薄片朝縱方向收縮，利用讓表面薄 片與基部薄片的接合部的間隔朝縱方向接近，而使上述 表面薄片從基部薄片隆起，而形成上述隆起部。 甚至，本創作之生理用衛生棉，當上述肌膚側表面 呈凹陷狀變形時，上述表面薄片係會從基部薄片隆起， 而形成上述隆起部。 也就是說，當生理用衛生棉配合著身體的形狀變形 時，或者是在生理用衛生棉配置可朝縱方向發揮彈性收 -10- (8) (8)M270791 縮力的防漏壁時，在利用該彈性收縮力使肌膚側表面呈 凹陷般彎曲變形時，上述表面薄片會豎立而形成上述隆 起部，也可以藉由上述變形，來增大隆起部的隆起高度 〇 本創作在其形成上述表面薄片的上述樹脂薄膜上， 係具有開孔，並且藉由使上述開孔擴張，或者是使上述 開孔的周圍的樹脂薄膜破裂，而形成了上述側方開口部 0 在此構成中，係藉由使用具有開孔者來做爲表面薄 片，並不須特別具有細縫，即可形成上述側方開口部。 此外，在本創作中，上述基部薄片最好是由具有比 上述表面薄片更佳之透液機能的高透液性薄片所形成。 因爲基部薄片具有優異的透液性，所以經過上述側 方開口部的經血，能通過基部薄片而迅速地移行至液吸 收層。並且，因爲表面薄片的透液機能劣於基部薄片， 所以可利用表面薄片而來防止經血附著到肌膚。 本創作最好是上述基部薄片，至少是肌膚側表面， 係由具多數液透過孔的樹脂薄膜所形成。 若基部薄片係由樹脂薄膜所形成，則因爲可形成開 孔面積較大，且開孔面積率較高的液透過孔，所以流到 該基部薄片的經血就可以更快的速度通過液透過孔，而 被液吸收層所吸收。 此時，出現在上述表面薄片之肌膚側表面的上述樹 脂薄膜就會形成液透過孔，而表面薄片的液透過孔的開 -11 - (9) (9)M270791 口面積率，係可小於上述基部薄片之液透過孔的開口面 積率。 但是，由上述表面薄片所形成的上述隆起部，也可 爲不具有多數液透過孔的構成。 〔創作的效果〕 在本創作中，表面構造體係由透液性之基部薄片、 及至少肌膚側表面係由樹脂薄膜所形成的表面薄片所構 成，因爲在上述表面薄片具有隆起部，所以經血可通過 隆起部的側方開口部，而到達基部薄片，並透過基部薄 片，而容易被液吸收層所吸收。此外，本創作因爲具有 由樹脂薄脂所形成，或包含了樹脂薄膜的表面薄片，所 以從液吸收層所滲出的經血不易接觸到穿用者的肌膚， 並且被液吸收層所吸收的經血的顏色，也可被上述表面 薄片所掩蔽。甚至，因爲具有多數的上述隆起部，所以 可讓膚觸感變柔軟。 【實施方式】 第1圖係爲將本創作之第1實施形態的生理用衛生 棉，以肌膚側表面朝上所顯示的立體圖，第2圖係用π-II線將第1圖之生理用衛生棉予以切斷的擴大半剖面圖 ，第3圖係變形例的擴大半剖面圖，第4圖A係顯示表 面構造體之構造的擴大分解立體解，第4圖B係隆起部 之開口部的形狀的說明圖。 -12- (10) (10)M270791 如第1圖所示般，本創作之實施形態的生理用衛生 棉1，係呈縱方向（γ方向）的長度尺寸，比橫方向（X 方向）的寬度尺寸長的縱長方形，且隔著縱方向中心線0 -〇，而呈左右對稱形狀。 生理用衛生棉1的外觀形狀’其朝向穿用者之腹部 的前緣部1 a，與朝向臀部的後緣部1 b均呈凸曲線狀。生 理用衛生棉1具有朝左右兩側方伸出的側翼部2，2，且 在比側翼部2，2更爲前方的位置，具有朝左右兩側方， 呈突曲線狀的前方側緣部1 c，1 c，而在比側翼部2，2的 後方的位置，則具有朝左右兩側呈突曲線狀的後方側緣 部 1 d，1 d。 如第2圖的剖面圖所示般，生理用衛生棉1的構造 係爲：具有包覆液吸收層4的穿衣側表面的不透液性的 背面薄片3、及包覆液吸收層4之肌膚側表面的表面構造 構20。該表面構造體20係由：包覆上述液吸收層4之肌 膚側表面的基部薄片2 1、及位在該基部薄片2 1之肌膚側 表面的表面薄片2 2所構成。液吸收層4的周緣在第1圖 中係以虛線來表示，且液吸收層4除了上述側翼部2外 ，係存在於生理用衛生棉1的絕大部份。 在生理用衛生棉1的左右兩側，係具有不透液性的 側方薄片5，5，上述基部薄片2 1的左右兩側部係在被上 述背面薄片3及側部薄片5所包夾的狀態下，與背面薄 片3、基部薄片2 1及側方薄片5相互黏接。各個的側方 薄片5的對向緣部5 a，係位在液吸收層4之左右兩側部 -13- (11) (11)M270791 的上方’且被上述對向緣部5a及對向緣部5a所包夾的 部份，係成爲液吸收區域6。 上述側翼部2，2係由上述背面薄片3與側方薄片5 ，5重疊接合所形成。在上述液吸收區域6的相反側，在 背面薄片4的表面係具有感壓接著劑層7，7，且在各個 側翼部2的肌膚側表面，亦設有感壓接著劑層8。 上述背面薄片4係由不透液性之聚乙烯樹脂等的樹 脂薄膜所形成。上述液吸收層4係由粉碎紙漿與高吸收 性聚合物（SAP)的混合體、或是用黏合劑將利用氣流法所 疊積成之紙漿予以固定的氣流型紙漿等所形成。上述側 方薄片5係爲不透液性，係由如聚乙烯（pE)樹脂纖維、 聚丙烯（PP)樹脂纖維、聚對苯二甲酸乙二酯（PET)樹脂纖 維等所形成之溶融型不織布、紡黏型不織布、紡黏型不 織布/溶融型不織布/紡黏型不織布所重疊而成之疊合不織 布等所成。 如第1圖所示般，在上述液吸收區域6，係具有因上 述液吸收層4及基部薄片21、及表面薄片22 —起被壓縮 所形成的壓縮溝。該壓縮溝係由：朝縱方向延伸的一對 縱壓縮溝1 1，1 1、及連結兩縱壓縮溝1 1，1 1，且朝前方 形成凸狀的前方橫壓縮溝1 2、及連結兩縱壓縮溝1 1，1 1 ，且朝後方形成凸狀的後方橫壓縮溝1 3所構成。 在被上述縱壓縮溝1 1，1 1、前方橫壓縮溝1 2及後方 橫壓縮溝1 3所包圍的中央吸收區域1 4，係具有由上述表 面薄片2 2所形成的多數的隆起部2 3。 -14- (12) M270791 第4圖A係顯示了由形成上述隆起部23之表面薄片 22及基部薄片所形成之上述表面構造體2〇的構造的擴大 圖。 第1實施形態之生理用衛生棉1，其基部薄片21與 表面薄片22，係皆由樹脂薄膜所形成。 形成基部薄片2 1的樹脂薄膜係可爲PE樹脂薄膜、 PP樹脂薄膜等，再加入氧化鈦、硫化鋇、碳酸鈣等之無 機塡充物並予以白色化。在上述基部薄片21，係有多數 的液透過孔2 1 a呈規則配列，而使液的透過機能昇高。 各個的液透過孔2 1 a的開孔面積（實際的開口面積）係大於 〇 · 2〜3 0 m m 2，最好是1〜3 0 m m2。此外，液透過孔2 1 a的 開孔面積率在上述中央吸收區域1 4，係約爲5〜40 %左右 〇 再者，爲了讓經血可通過上述液透過孔2 1 a，並迅速 朝液吸收層4移行，基部薄片2 1最好是使用表面有塗佈 了界面活性劑，或是在薄膜內部塗上界面活性劑等後， 再施以親水性處理者。 上述表面薄片22係爲低密度聚乙烯（LDPE)樹脂薄膜 、直鏈上低密度聚乙烯（LLDPE)樹脂薄膜、高密度聚乙烯 (HDPE)樹脂薄膜、PP樹脂薄膜、或摻合了上述樹脂的樹 脂薄片，在形成隆起部2 3之前的質地時，並不具液透過 孔，而無法發揮透液機能者。 在第1圖所示的實施形態中，因爲在除了被上述縱 方向壓縮溝Π，1 1與前方橫壓縮溝1 2及後方橫壓縮溝 -15- (13) (13)M270791 1 3所包圍的中央吸收區域1 4以外的部份，並不具有隆起 部23，所以在不具有隆起部23的區域，最好在表面薄片 2 2能形成液透過孔。但是，該液透過孔的開口面積要小 於基部薄片2 1的液透過孔2 1 a的開口面積，且開口面積 率亦較低。 如第4圖A所示般，爲了讓隆起部23可因經血本身 的重量而輕易自由變形，所以樹脂薄膜的厚度最好是在 10〜150/zm的範圍內，最好是在15〜80//m的範圍內。 形成表面薄片22的樹脂薄膜，係被混入了上述無機 塡充物並被施以白色化。此外，爲了讓經血可迅速地朝 基部薄片2 1移行，所以表面薄片22的表面最好是被施 以撥水性處理，且爲了讓經血可朝基部薄片2 1移行，亦 可相反地施以親水處理。 表面薄片22的隆起部23，係可根據如第6圖A、B 所示之步驟來形成。 如上所述般，在第1實施形態中，成爲表面薄片22 的樹脂薄膜雖不具有透液功能，但如第6圖A所示，係 在縱（Y)方向上，間隔地形成直線排列的細縫24、及同樣 在縱方向上，隔以間距呈直線配置的細縫2 5。各個的細 縫24與細縫25在縱方向上係爲相同長度，且呈相互平 行1 °並且，在縱方向上，以相同的位相、同的間距形成. 。細縫24與細縫25的橫方向（X方向）間隔爲W1。 細縫2 6與細縫2 7的縱方向（Y方向）長度尺寸， 係同於上述細縫2 4與細縫2 5者。細縫2 6與細縫2 7係 -16- (14) (14)M270791 互爲平行，且在縱方向，以相同的位相、相同的間距， 呈直線配列。細縫26與細縫27的X方向的間隔與上述 同爲W1。但是，細縫26與細縫27對於細縫24與細縫 25係’其縱方向（Y方向）的配列位相係相差半周期。 細縫2 5與細縫2 6的橫方向（X方向）的間隔，及細縫 2 7與細縫2 4的橫方向（X方向）的間隔，係皆爲w 2，間 隔W2遠比上述間隔W1爲小。 如弟6圖A所不般，一對的細縫2 4，2 5的組，與一* 對的細縫26，27的組，係朝橫方向（X方向）呈交互配列 。因此，被細縫24及細縫25所包夾的部份，係爲寬度 尺寸W 1的第1幅寬部3 1，而被細縫26及細縫27所包 夾的部份，係爲寬度尺寸W 1的第2幅寬部3 2，且被細 縫2 5及細縫2 6所包夾的部份，則爲寬度尺寸W2的第1 福寬部3 3，而被細縫27及細縫24所包夾的部份，係爲 寬度尺寸W2的第1幅寬部34。 在第6圖B中，如上述般，係顯示了形成複數的細 縫的表面薄片22之成形模40。成形模40係具有對向之 形模4 1與衝模43。且在形模4 1形成有數的成形凸部42 。各個的成形凸部42係爲同形狀同尺寸，上面42a係朝 γ方向彎曲，而兩側面4 2 b，4 2 b則呈垂直平面。 各個的成形凸部42係呈可與各個的上述表面薄片22 之第1幅寬部31與第2幅寬部3 2呈對向般配列。並且 ，在X方向上相鄰的成形凸部42與成形凸部42之間， 上述第1幅窄部3 3與第2幅窄部3 4係呈一個個對向般 -17- (15) M270791 在衝模4 3，於縱方向上並列的上述成 形凸部42之間，係設有以最小空隙之嵌合 藉由將形成複數的細縫的上述表面薄片 模41與衝模4 3之間，利用形模4 1與衝模 將表面薄片22予以加壓，或者是在構成表 樹脂薄膜的軟化點以下的溫度下，且在將形 43予以加熱的狀態下，即可如第4圖A所 薄片22上形成複數的隆起部23。 在本實施形態中，所有的隆起部23的 皆爲相同，但是，被上述細縫24與細縫25 幅寬部3 1，則是以符號23 A來表示被上劲 所押壓形成的隆起部，而被細縫26及細縫 第2幅寬部3 2，則是以符號2 3 B來表示被 42所押壓形成的隆起部。 上述細縫24，25組與細縫26，27的 方向上相隔半周期，所以上述隆起部2 3 A ，就會朝Y方向相隔半個間距。此外，隆產 起部23B係朝橫方向（X方向）呈交互配列。 在第4圖A中，若要說明上述隆起部 話，在該隆起部23 A，被上述細縫24與細 的第1幅寬部3 1，係對應成形凸部42之上 ，而呈彎曲的隆起形狀。 以下就把因被細縫25所分離而形成之 多凸部3 2與成 丨勺押壓部44。 2 2夾持在形 4 3，在常溫下 面薄片22之 模4 1與衝模 示般，在表面 形狀與尺寸雖 所包夾的第1 g成形凸部42 2 7所包夾的 上述成形凸部 組〃因爲在Y 與隆起部2 3 B S部23A與隆 23A的構造的 縫25所隔開 面4 2 a的形狀 表面薄片的緣 -18- (16) (16)M270791 部，稱之爲分離緣部。表面薄片2 1因細縫2 4而相互分 離所形成的一方的分離緣部24b，雖成爲第1幅寬部3 1 的緣，但是該分離緣部24b係從另一方的分離緣部24a， 朝上方大幅度分離，所以在隆起部2 3 A的側方，就形成 了大開.口的側方開口部35a ° 同樣地，因細縫2 5而相互分離的一方的分灕緣部 25b，係成爲第1幅寬部31的緣，而該分離緣部25b則 因自另一方的分離緣部25a朝上方大幅度分離，而以在 隆起部23 A的側方，就形成了大開口的側方開口部3 5 b 。此外，在形成隆起部23 A的第1幅寬部3 1的正下方， 在分離緣部24a與分離緣部25a之間，係形成了底部開 口部3 6，且在該底部開口部3 6內，位於其下方的基部薄 片會露出來。 在第4圖B中，係以朝X方向投影者來表示上述側 方開口部3 5 a，3 5 b。此外，在第4圖B中，又以陰影線 來表示底部開口部36。 同樣地，在隆起部23B，被細縫26所分離的一方的 分離緣部26b係從另一方的分離緣部26a，朝上方大幅度 分離，所以形成了側方開口部37a ’而被細縫27所分離 的分離緣部27b，則從分離緣部27a朝上方大幅度分離， 而形成了側方開口部37b。此外，在形成隆起部23ΊΒ之 第2幅寬部32的正下方，在分離緣部26a與分離緣部 2 7 a之間，係具有使基部薄片2 1露出來的底部開口部3 8 -19- (17) (17)M270791 如第4圖A所示般，在各個的隆起部2 3 a係具有第 1幅寬部3 1的Y方向的兩端部份，也就是在從基部薄片 2 1豎立起的基部’係具有朝Y方向開口的前後開口部 3 9a。同樣地，在各個的隆起部2 3 B，也具有第2幅寬部 32之Y方向的兩端部份，也就是在從基部薄片21豎立 起的基部，具有朝Y方向開口的前後開口部3 9 b。該各 個的前後開口部3 9 a ’ 3 9 b的開口面積，係小於各個的側 方開口部35a，35b，37a，37b的開口面積。 位於細縫25與細縫26之間的第1幅窄部33，並沒 有像隆起部23般，朝上方大幅度隆起，而是位在比隆起 部2 3的頂部稍下側的位置，並包覆著基部薄片 2 1的表 面。同樣地，被細縫27與細縫24包夾的第2·幅窄部34 ，也沒有像隆起部2 3 —樣朝上方大幅度隆起，而是包覆 著基部薄片2 1的表面。 在本表面構造體20中，基部薄片21與表面薄片22 ，係在上述隆起部23 (23 A，23 B)以外的部份，彼此接合 〇 接下來，針對上述第1實施形態之生理甩衛生棉的 經血吸收功能來加以說明。 本生理用衛生棉1，係如第2圖所示般’液吸收層4 的肌膚側表面係被具高透液性的基部薄片21所包覆’甚 至在該肌膚側表面，還重疊著本身之液吸收功能比上述 基部薄片2 1差（在第1實施形態中，沒有發揮透液功能） 的表面薄片22，且在中央吸收區域14，還因爲上述表面 -20- (18) (18)M270791 薄片22而形成了多數呈環狀的隆起部23(23A，23B)。 當經血流到中央吸收區域1 4時，該經血會通過在隆 起部2 3 A朝X側大開口的側方開口部3 5 a，3 5 b，而流到 露出於隆起部2 3 A之正下方的底部開口部3 6內的基部薄 片21。同樣地，經血也會通過在隆起部23B朝X方向大 開口的側方開口部37a，37b，而到達露出於隆起部23B 之正下方的底部開口部3 8的基部薄片2 1。 因爲基部薄片21，其較大開口面積的液透過孔21a 係以高開口面積率形成，所以，流至上述底部開口部3 6 ，3 8的經血，可迅速地通過基部薄片2 1的液透過孔2 1 a ，而被其下方的液吸收層4所吸收。 第4圖A係顯示黏度較高的經血4 5流至中央吸收區 域1 4的狀態模式。黏度較高的經血4 5 —旦流至中央吸 收區域，形成隆起部的第1幅寬部3 1，就會因爲經血4 5 本身的重量而朝基部薄片2 1呈凹狀變形。之後，經血45 就會流入位在已變形之隆起部23A旁邊的隆起部32B的 側方開口部3 7 a ’而直接到達位在隆起2 3 B之正下方的 底部開口部3 8的基部薄片2 1 ’並通過液透過孔2 1 a而被 液吸收層4所吸收。 因此，即使在短時間內流入大量的經血，經血會經 過側方開口部3 5 a，3 5 b ’ 3 7 a，3 7 b而到達底部開口部3 6 ，3 8，並通過露出於該底部開口部3 6，3 8的基部薄片2 1 ，而可迅速被液吸收層4所吸收。 此外，即使在生理用衛生棉上施以壓力，而使得已 -21 - (19) (19)M270791 被液吸收層4所吸收的經血透過基部薄片2 1的液透過孔 2 1 a，而滲出基部薄片2 1的肌膚側表面，因爲在基部薄 片21的表面，具有形成隆起部23A的第1幅寬部3 1、 及形成隆起部23B的第2幅寬部23B、及位在隆起部 2 3 A，2 3 B之間的第1幅窄部3 3與竹2幅窄部3 4，而可 防止基部薄片2 1的經血直接與肌膚接觸。 再者，在生理用衛生棉1的肌膚側的最表面，因爲 具有白色化的上述表面薄片22，所以被液吸收層4所吸 收的經血的顏色可被上述表面薄片22所掩蔽，故在穿用 中無法目視到經血的顏色，所以可維持衛生的外觀。 發揮這種功能的生理用衛生棉1，在穿用者有以下舉 動時更具效果。 當穿用本生理用衛生棉1的穿用者呈坐姿時，因爲 陰道口被到壓迫所以經血的排泄量較少。此時，會因爲 股間部的壓力而使構成隆起部2 3 A的第1幅寬部3 1與構 成隆起部23B的第2幅寬部32變形，而呈在基部薄片 2 1重疊的狀態。因此，即使被液吸收層4所吸收的經血 因爲壓力而透過基部薄片的液透過孔21A而滲透出來 ，也可被上述幅寬部3 1，3 2所阻擋，經血不易接觸到穿 用者的肌膚，故可有較舒適的穿用觸感。 當穿用者從上述坐姿突然站立時，陰道口的壓力不 見，而使得大量的經血急速地流至生理用衛生棉1的肌 膚側表面。此時，因爲生理用衛生棉1所受的壓力也減 低，所以就如第4圖A所示般，各個的隆起部2 3會從基 -22- (20) (20)M270791 部薄片2 1朝肌膚側豎立，而使經血流入隆起部2 3 A的側 方開口部3 5 a，3 5 b及隆起部2 3 B的側方開口部3 7 a，3 7 b ，並通過露出於底部開口部36與底部開口部38的基部 薄片2 1，而迅速被液吸收層4所吸收。 在第4圖A所示的實施形態中，因爲隆起部23 A具 有前後開口部3 9 a ’所以朝縱方向流動’並流入隆起部 2 3 A與隆起部2 3 A之間的經血’就會通過前後開口部3 9 a 而到達基部薄片2 1。在形成於隆起部2 3 B與隆起部2 3 B 的前後開口部39b也是同樣的情況。因此，可抑制經血 朝縱方向及橫方向擴散，而迅速被液吸收層4所吸收。 第5圖A係上述第1實施形態之變形例的立體圖。 於第5圖A所示的生理用衛生棉1 A的表面構造體 2 OA，其表面薄片22 A係由同於上述第1實施形態的樹 脂薄膜所形成，且在該表面薄片22A亦具有多數的液透 過孔2 2 a。 各個的液透過孔22a的開孔面積爲0.2〜10.0mm2’ 開孔面積率爲1〜25 %左右，表面薄片22A本身的液透過 功能則比基部薄片2 1的液透過功能低。 在本說明書中所謂的液透過功能，係指在相同的條 件下，同量的經血以同速度流至基部薄片2 1與表面薄片 22A之肌膚側表面時，在基部薄片21之透過薄片之人工 經血的流量（每單位面積，且每單位面積的人工經血的透 過量）係大於表面薄片22A。 再者，在基部薄片21與表面薄片22A，皆爲相同厚 -23- (21) (21)M270791 度且相同的樹脂薄膜，並在親水處理等之相同條件的情 況下，液透過孔的開孔面積較大，且開孔面積率較高的 一方就具有較佳的透液功能。但是，透液功能並非絕對 與液透過孔的開孔積及開孔面積率成正比，也會因爲樹 脂薄膜的親水能力或撥水能力、樹脂薄膜的厚度或液透 過孔2 1 a，2 2 a的形狀而有所差異。 當基部薄片21與表面薄片22A非爲相同之樹脂薄膜 ，或非相同厚度，而液透過孔2 1 a，2 2 a的形狀也不同時 ，利用上述人工經血所測定的透液功能，最好是設定成 基部薄片2 1比表面薄片。 最好是，人工經血透過基部薄片22的流量，是表面 薄片2 2 A之流ΐ的1 . 5倍以上’最好是2倍以上更佳。 上述人工經血係爲在1.4升的離子交換水中，加入 3〇〇公克的甘油，及30公克的羧甲基纖維素·鈉、4〇公 克的氯化鈉者，必要的話，還可以加以食用紅色素等。 於第5圖Α中所示的表面構造體20Α中，在表面薄 片22A，係設有朝縱方向（Y方向）依一定之間距所形成的 隆起部2 3 D、及同樣朝縱方向依一定間距所形成的隆起 部23E。上述隆起部23D與第4圖A中所示的隆起部 2 3 A係爲相同的形狀，而隆起部2 3 E的形狀則同於第4 圖A中所示的隆起部2 3 B。這差別是在於，相對於第4 圖A所不的隆起部23A，23B具有前後開口部39a，39b ，第5圖A所示的隆起部23D，23E雖然不具上述前後 開口部3 9 a，3 9 b，但在形成隆起部2 3 D，2 3 E的表面薄 -24- (22) M270791 片22A，則具有多數的液透過孔22a。 於第5圖A所示的表面構造體20A 起部23D，23E的表面薄片22A具有液3 經血不易殘留在隆起部2 3 D，2 3 E。 在上述各實施形態中，於表面薄片 部2 3 A，2 3 B，2 3 D，2 3 E係具有側方開 3 7a，3 7b，所以經血可過通該側方開口 至基部薄片2 1。因此，基部薄片若爲具 流至液吸收層4之效果的構造的話，則 是具優良透液性，且可有效防止液體回涕 爲了提昇防止基部薄片21之液體回 第5圖B(第5圖A之B-B線的剖面擴: 各個液透過孔2 1 a設計成隨著朝向液吸叱 積就逐漸變小的錐形孔，並在該下端形尽 突出的閥2 1 b。或者是，將液透過孔2 1 a 口面積率設定在上述最佳範圍內的最小 對基部薄片2 1施以撥水處理，也可提高 的效果。此外，具有上述閥2 1 b的液透站 昇對被液吸收層4所吸收之經血的顏色的 在此，所謂防止基部薄片21之液體 依下述來加以評價。 讓平面形狀爲正方形（ 1 00x 1 00mm)， 1 00 g/m2的紙漿，吸引5公克的人工經血 片樣本，並在薄片樣本上又放上濾紙， 中，因爲形成隆 I過孔22a，所以 2 2，2 2 A的隆起 □部 35a， 35b， 部而迅速地被送 有可防止液體回 表面構造體就可 ί者。 流的效果，可如 大圖,)所示般，將 t層4，而開口面 ^朝著液吸收層4 的開口面積與開 範圍，或是藉由 防止液體的回流 ^孔2 1 a，也可提 f掩蔽效果。 回流的效果，可 單位面積重量爲 ，在其上放置薄 來然再放上底面 -25- (23) (23)M270791 形狀爲100x100mm的正方形，且本身重量爲5kg的錘， 施以約4.9kPa的壓力，此時，轉印至濾紙的人工經血的 量（人工經血在濾紙上的擴散面積）愈少，表示其防止 液體回流的效果愈佳。 在第5圖A所示的實施形態中，具有顯著之上述防 止液體回流效果的表面薄片22A及基部薄片2 1的組合， 可如下所述。 (1) 表面薄片22A的液透過孔22a與基部薄片21的 液透過孔2 1 a，都不具有閥2 1 b。此時，爲了讓基部薄片 2 1的透液功能高於表面薄片22A的透液功能，最好是設 定好液透過孔2 1 a，22a的開口面積與開口面積率。 這是適用於穿用該生理用衛生棉的女性’站立時的 工作較多等時，較難對生理用衛生棉的肌膚側表面施以 壓力的使用形態。 (2) 表面薄片22A的液透過孔22a與基部薄片21的 液透過孔2 1 a，都具有閥2 1 b。此時，爲了讓基部薄片2 1 的透液功能高於表面薄片22A的透液功能’最好是設定 好液透過孔21a，22a的開口面積與開口面積率’並且讓 表面薄片22 A的防止液體回流的效果優於基部薄片2 1。 這是適用於穿用該生理用衛生棉的女性’坐下時的 工作較多等時，易於對生理用衛生棉的肌膚側表面施以 壓力的使用形態。 (3) 在表面薄片22A的液透過孔22a不具閥21a，而 在基部薄片2 1的液透過孔2 1 a具有閥2 1 b的組合。此時 -26- (24) (24)M270791 ’爲了議基部薄片2 1的透液功能優於表面薄片2 2 A的透 液功能’最好是設定好液透過孔2 1 a，2 2 a的開口面積及 開口面積率。此外，表面薄片2 2 A與基部薄片2 1的防止 液體回流的效果可爲相同，或者是表面薄片22A的防止 液體回流的效果優於基部薄片2 1。 這是適用於穿用該生理用衛生棉之女性，其站立與 坐下時的工作是交替進行等，而被要求須符合上述（1)及 (2)中間的功能的使用形態。 在上述各實施形態中，形成上述隆起部2 3的表面薄 片22，22A的幅寬部31，32的X方向的寬度尺寸，係 爲 0.5〜l〇mm，最好是在 1〜5mm。此外，隆起部23的 縱方向（Y方向）的長度尺寸，係爲3〜20mm，最好是在8 〜15mm。當尺寸在上述範圍內時，陰道口就不會產生不 適感，並且即使隆起部因爲體壓而倒塌，也可輕易地回 復成凸狀。 在橫方向上並列的隆起部2 3的間隔係爲〇〜1 0 mm， 最好是在0〜5mm。 每1個上述側方開口部3 5 a，3 5 b，3 7 a，3 7 b的開口 面積係爲3〜100mm2，最好是10〜50mm2。如果在上述 範圍以下的話’則經血不易被導至隆起部2 3的內部’而 若超過上述範圍的話’則滲出於基部薄片2 1的表面0勺，經 血，就容易附著到肌膚。 上述隆起部23的數目以每100cm2，具有50〜8〇〇個 爲宜，最好是1 0 0〜5 0 0個。如果在上述範圍以下的話’ -27- (25) (25)M270791 則隆起部可防止經血朝周圍擴散的功能較低’所以經血 就容易在生理用衛生棉的表面擴散。而若超過上述範圍 的話，則因側方開口部35a，35b，37a，37b的數目過多 ，而使得滲出於基部薄片2 1表面的經血’變得容易附著 到肌膚上。 在上述實施形態中，各個的隆起部2 3雖爲相同大小 ，但各個隆起部的大小也可因場所的不同而有大小的差 異，也可是從上方所視之面積各異的隆起部互相混合存 在。此外，也可是位於縱方向中心線〇_0的隆起部的面 稹較大，但隨著遠離上述縱方向中心線0 -0，該隆起部 的面積就會逐漸變小的構造。 第3圖係顯示成爲上述第1實施形態之變形例的生 理用衛生棉1B的表面構造體20B。 在該表面構造體20B中，隆起部23F與隆起部23G ，係同於上述隆起部2 3 A及隆起部2 3 B，是朝著縱方向 (Y方向）隔著半間距而配置著。且形成隆起部23F及隆起 部23G的表面薄片22 (或22 A)，係朝向橫方向（X方向）傾 斜。如第3圖所示的隆起部2 3 F ’ 2 3 G，係朝向縱方向中 心線0 - 0，而有側方開口部3 5 b，3 7 b呈大開口狀，且朝 向生理用衛生棉的緣部，而有側方開口部3 5 a，3 7 a呈小 開口狀。因此，在生理用衛生棉1 B的肌膚側表面，經血 就不易朝生理用衛生棉之左右兩緣部擴散。 第7圖A、B係本創作之第2實施形態的生理用衛生 棉的表面構造體120，及其製造步驟的立體圖。 -28- (26) (26)M270791 在第2實施形態中，如第7圖A所示般，係使用形 成細縫24，25，26，27的表面薄片22(或22A)。該表面 薄片2 2的細縫的形成方法，係同於第6圖A中所示的第 1實施形態。 在第2實施形態中，形成細縫24，25，26，27的表 面薄片22，係具有朝橫方向（X方向）的拉引力Fx。因爲 該拉引力Fx而使表面薄片22在細縫24，25，26，27會 被分離，且朝X方向擴張，最後，就會在表面薄片22上 產生朝縱方向（Y方向）的收縮力f y。 一旦縱方向的收縮力fy開始作用，表面薄片22朝 縱方向收縮的話，則被細縫24與細縫25所包夾的第1 幅寬部31就會向上隆起變形，而形成隆起部123A，同 樣地，被細縫26與細縫27所包夾的第2幅窄部33與第 2幅窄部3 4，就會在表面薄片朝橫方向被拉引時，朝橫 方向（X方向）變形，而使該幅窄部3 3，3 4，得以發揮連 結隆起123A與隆起部123B的功能。 在給予上述表面薄片22上述的拉引力Fx的狀態下 ，在隆起部123A，123B以外的部份，係與基部薄片21 接合。因此，在隆起部1 2 3 A的兩側部，通過基部薄片 2 1的側方開口部1 3 5 a，1 3 5 b就會開口，且在隆起部 1 23B的兩側部，也就形成通過基部薄片2 1的側方開口 部 13 7a，13 7 b ° 該表面構造體1 2 0只是因爲在塡入細縫的表面薄片 22上，施以朝橫方向的拉引力Fx所形成，所以其製造步 -29- (27) (27)M270791 驟極爲簡單。此外，流至表面構造體120的經血，也可 流入上述側方開口部135a，135b，137a，137b內，透過 基部薄片2 1而可迅速移行至液吸收層4。 在給予上述表面薄片22朝橫方向的拉引力Fx的步 驟中，可在將表面薄片2 2朝Y方向送出時，利用輥子等 慢慢地朝X方向拉伸。或者是，在液吸收層4，層疊上 基部薄片21及於第7圖A所示的表面薄片22，再如第1 圖所示般，藉由縱壓縮溝Π 5 1 1的形成，而使朝橫方向 拉引的拉引力 Fx作用在表面薄片 22，而形成隆起部 123 A，123B。此時，在被縱壓縮溝1 1與縱壓縮溝1 1所 包夾的區域，事先使衛生棉的一部份的膨鬆度較高，則 可藉由上述縱壓縮溝1 1，1 1的形成，而可輕易地在表面 薄片22作用朝上述橫方向的拉引力Fx。 第8圖係顯示本創作之第3實施形態的表面構造體 的製造步驟的立體圖。 在第3實施形態中，如第8圖A所示般，在表面薄 片22(或22A)的縱方向上係形成了連續延伸的複數的細 縫2 8。細縫2 8係爲相互平行，且朝橫方向隔著一定的距 離 W3。再者，上述細縫28也可爲朝橫方向，相互隔著 不同的間隔而形成。 在第8圖B中，係顯示了成模於第8圖A中所示之 表面薄片22的成形模140。成形模140的係具有呈對向 配置的形模1 4 1及衝模1 4 3。且形模1 4 1係具有多數的成 形凸部1 42。各個的成形凸部1 42係爲相同形狀，且在橫 -30- (28) (28)M270791 方向（X方向）上爲連續，而朝縱方向（Y方向）隔以一定間 距地形成。各個的成形凸部1 42的上面1 42a，係朝Υ方 向彎曲形成。 此外，在衝模1 43，於朝縱方向並列的上述成形凸部 1 42與成形凸部1 42之間，係設有以最小空隙嵌合的押壓 部1 4 4，該押壓部1 4 4係朝橫方向（X方向）連續形成。 將於第8圖A所示的上述表面薄片22夾持在形模 141與衝模143之間，並在常溫下，用形模141及衝模 143來對表面薄片22加壓，或在形成表面薄片22之樹脂 薄膜的軟化點以下的溫度，且在已加熱的狀態下，對形 模141與衝模143加壓。因爲這個步驟，表面薄片22之 被細縫2 8與細縫2 8所包夾的部份，就會隆起而形成隆 起部。 藉由將該表面薄片22的隆起部與隆起部的中間部份 (被上述押壓部所押壓的部份），接合到基部薄片2 1的表 面，即可形成表面構造體。該表面構造體，其如第4圖 A所示之形狀的隆起部，係在縱方向上依一定的間距配 置’並在橫方向上成列並排的形狀。 第9圖A、B係顯示使用於本創作之第4實施形態的 生理用衛生棉的表面構告體220，及其製造步驟。 在第4實施形態中，如第9圖A所示般，係使用依 一定的寬度尺寸W4，將表面薄片22(或22A )予以裁斷 的複數條的帶狀薄片1 2 2。 將上述帶狀薄片122及基部薄片21朝Y方向送出， -31 - (29) (29)M270791 此時，可將帶狀薄片1 22的送出速度V 1，設定得比基部 薄片2 1的送出速度V2快。然後，再如第9圖所示，利 用在縱方向上隔以間距的接合部22 1，而使帶狀薄片1 22 與基部薄片2 1相互接合。 因爲上述輸送速度的不同，帶狀薄片122在縱方向 隔以間距的接合部221與接合部22 1之間，就會朝上方 隆起，而形成隆起部223 A，223 B。在第4圖B所示的圖 例中，隆起部223 A與隆起部223 B係朝向縱方向，並以 配列周期爲彼此間隔半個間隔而形成。此外，在第9圖 所示的實施形態中，帶狀薄片1 22並沒有朝橫方向有實 質的間隔而伸出，因爲具上述隆起部2 2 3 A，2 2 3 B，所以 在基部薄片2 1的肌膚側表面，就存在著實質上沒有間距 的隆起部2 2 3 A，2 2 3 B。 因此，上述帶狀薄片1 2 2係可被覆從液吸收層4流 回至基部薄片2 1之表面的經血，故可防止經血附著到肌 膚，並可發揮被液吸收層4所吸收之經血的遮蔽效果。 於第9圖B中所示之表面構造體220的製造步驟， 亦可用下記方法來實施。 使用具有朝縱方向（Y方向）伸縮性者來做爲上述基部 薄片2 1。例如可使用：在對基部薄片2 1施以波紋加工的 同時，將由具透液性及伸縮性的透氣型不織布等的不織 布，部份地接著在基部薄片2 1的著衣側表面者。 在將具上述伸縮性之基部薄片2 1朝縱方向伸長的狀 態下，使帶狀薄片1 2 2在縱方向上隔以間距而與該肌膚 -32- (30) M270791 側表面接合，而形成上述接合部22 1 °之後’解除基部薄 片2 1的拉引力，並藉由使基部薄片2 1朝係縱方向伸縮 ,即可形成如第9圖B所示的隆起部223A，223B。再者 ，從上述第1實施形態至第3實施形態’及該等的變形 例，甚至是在以後所說明的實施形態中，同樣地，都可 利用給予基部薄片2 1拉引力，使其收縮’而來形成隆起 部。 第10圖A、B、C係各爲利用第9圖所示之製造步 驟，所製造之表面構造體之其他實施形態的部份立體圖 〇 於第1 0圖A所示之第5實施形態的表面構造體 2 20A，基部薄片321係由透液性之不織布所形成。該不 織布係爲：在以紙漿或人造絲等之親水性纖維爲主體所 形成之無跨接型不織布、或利用熱風將經親水處理之熱 融著性的複合合成纖維予以融著透氣型不織布、或者是 在由經親水處理之合成樹脂纖維所形成的紡黏型不織上 ，形成多數的液透過孔等者。或是，如上述各實施形態 般，也可使用具多數液透過孔之樹脂薄膜的基部薄片2 1 〇 利用同於第9圖所示的製造步驟，就可將帶狀薄片 1 2 2在縱方向上隔以間距’部份地接合在基部薄片3 2 1， 而形成接合部2 2 3 A，並在接合部2 2 1與接合部2 2 1之間 ，使帶狀薄片1 2 2向上隆起，即可形成隆起部2 2 3 a， 223B。 -33- (31) (31)M270791 於第10圖A所示的表面構造體220A中，雖然隆起 223 A，223 B係在橫方向上隔以間距地配置著，但在隆起 部22 3 A，22 3 B之間的空隙，又設有被覆樹脂薄膜124， 且該被覆樹脂薄膜124係接著在基部薄片321的肌膚側 表面。 上述包覆樹脂薄膜124如上述表面薄片22般，係爲 實質上不透液者，或者是如表面薄片22A般，具有開口 面積較小之液透過孔22a，且透液功能劣於基部薄片321 者。無論如何，被覆樹脂薄膜1 24係含無機塡充物且經 白色化處理。 當經血流至該表面構造體22 0A時，該經血會流入隆 起部223 A，22 3 B的內部，透過基部薄片321而被液吸收 層所吸收。且因基部薄片321的表面，係被隆起部22 3 A ，223 B及被覆樹脂薄膜124所包覆，所以被液吸收層4 所吸收的經血不易附著在肌膚，並可遮蔽在隆起部223 A ，223 B及被覆樹脂薄膜124的經血的顏色。 第1 〇圖B係顯示做爲第5實施形態之變形例的表面 構造體220B。 在該表面構造體220B，基部薄片321係由帶狀薄膜 的集合體所形成，且各個帶狀薄膜係具有液透過孔。並 且，帶狀薄片1 22係部份地與基部薄片3 2 1的肌膚側表 面接合，形成隆起部223 A，223 B。M270791 ⑴ 8. Description of the new type [Technical field to which the new type belongs] This creation relates to a type of sanitary napkin that is difficult for menstrual blood to stay on the surface and can be quickly guided to the absorbent layer. [Prior art] Most general sanitary napkins are provided with a liquid-absorbing layer and a liquid-permeable surface sheet covering the skin-side surface of the liquid-absorbing layer. The surface sheet is formed of a resin film having a large number of liquid-permeation openings or a liquid-permeable nonwoven fabric. The viscosity of menstrual blood flowing to the skin side surface of the sanitary napkin is relatively high, and there may be a large amount of menstrual blood flowing to the surface sheet of the sanitary napkin in a short time due to the wearer's personal factors or health status. . For example, when the surface sheet is formed of a resin film with a liquid perforation hole, by increasing the opening area of each liquid perforation hole and increasing the opening area ratio of the liquid perforation hole, a large amount of liquid Menstrual blood migrates to the fluid-absorbing layer. However, if the opening area of the liquid permeation hole is too large or the opening area ratio is too high, the menstrual pads that have been absorbed by the liquid absorption layer due to the pressure on the body will easily pass through the liquid. It can be seen through the hole, so it is easy to cause the wearer to feel unsanitary. Conversely, if the opening area of each liquid permeation hole is small and the opening area ratio is low, the menstrual blood can be easily prevented from flowing back to the surface of the surface sheet, and the color of the menstrual blood absorbed by the liquid absorbing layer can be easily hidden, -4 -(2) (2) M270791 However, when the liquid permeation speed of the surface sheet becomes slow or a large amount of menstrual blood with a high viscosity flows into the surface sheet within a short period of time, the menstrual blood will remain on the skin-side surface of the surface sheet and contact with To the skin and easily cause discomfort to the wearer. For this reason, the surface structure of a sanitary napkin is required to have the reverse function of the liquid permeation function, the prevention of liquid backflow, and the ability to hide the color of menstrual blood. To meet such a demand, the conventional sanitary napkin has a surface structure shown on the skin-side surface of the sanitary napkin as described below. It is described in the following Patent Document 1 that the surface material of the sanitary napkin is formed of a water-repellent film and is in this row. The aqueous film system has a large number of recessed portions which are recessed toward the liquid absorbing layer. And a part of the inclined portion of the recessed portion has a liquid transmission hole. By having such a surface material, the menstrual blood can freely move to the liquid absorbing layer, and the liquid from the liquid absorbing layer is less likely to flow back, and the menstrual blood absorbed by the liquid absorbing layer can be easily concealed. The following patent documents 2 to 4 are those in which a liquid-permeable surface sheet is provided on the skin-side surface of the liquid-absorbing layer, and the continuous filament bundles extending in the longitudinal direction are fixed with a gap therebetween. The continuous filament bundles on the skin-side surface of the surface sheet and located between the fixing portion and the fixing portion form a plurality of ring portions that bulge toward the skin side. Since the above-mentioned continuous filament bundles form a large number of ring-shaped bulges, they give the wearer a good skin feel. Moreover, even if menstrual blood flows back from the liquid-absorbing layer to the surface of the surface sheet, the surface will have continuous fibers. Tow, -5- (3) (3) M270791 makes it difficult for menstrual blood to directly contact the skin. [Patent Document 1] Japanese Patent Laid-Open No. 1-343 65 [Patent Literature 2] Japanese Patent Laid-Open No. 2002-6573 [Patent Literature 3] Japanese Patent Laid-Open No. 2002-6573 Japanese Patent No. 7 [Patent Literature 4] Japanese Patent Laid-Open No. 2002-6978 1 Publication No. [New Content] [Problems to be Solved by the Author] Those described in the above-mentioned Patent Document 1 are formed on the surface material formed of a water-repellent film, and have a large number of recesses, and guide menstrual blood to the above. The recessed portion makes it easier for menstrual blood to migrate from the recessed portion to the liquid-absorbing layer. However, the opening of the surface material is provided only in the inclined portion of the recessed portion, so the top of the recessed portion has a flat state without openings. Therefore, once menstrual blood having a relatively high viscosity flows to the surface material in a short period of time, the recessed portion will be saturated with menstrual blood, and menstrual blood will easily pass through the flat portion of the top portion and spread to the surroundings. Therefore, menstrual blood easily remains on the skin-side surface of the surface material and comes into contact with the skin. In addition, those described in Patent Documents 2 to 4 are designed to provide a raised portion made of continuous filaments in a ring shape on the surface of the surface sheet, so that the skin feels good, and even if menstrual blood remains on the surface sheet, On the skin side, the presence of continuous filaments prevents the menstrual blood from directly contacting the skin. However, the function of guiding the menstrual blood of the surface sheet to the liquid-absorbing layer depends only on the liquid-permeability function of the surface sheet. Therefore, if the opening area of the liquid-permeation hole of the surface sheet is increased, the -6- ( 4) (4) When the M270791 liquid permeation function, the problem of liquid backflow also occurs easily. In order to solve the above-mentioned conventional problems, the purpose of this creation is to provide a method that can quickly transfer the menstrual blood to the liquid absorbing layer even if a large amount of menstrual blood flows in, and prevent the liquid from flowing back and concealing the color of the menstrual blood absorbed by the liquid absorbing layer. A sanitary napkin with excellent effect and even good skin feel [Method to solve the problem] In order to achieve the above purpose, this creation is directed to a skin-side surface having a liquid-absorbing layer and covering the skin-side surface of the liquid-absorbing layer The sanitary napkin for a surface structure is characterized in that the surface structure system includes a liquid-permeable base sheet covering the skin-side surface of the liquid-absorbing layer, and a surface sheet positioned on the skin-side surface of the base sheet, At least the skin-side surface of the surface sheet is formed of a resin film; because the surface sheet bulges further from the skin-side surface of the base sheet toward the skin side, forming a large number of bulges, and on the side of the bulge 'A side opening is formed which can pass to the base sheet. The surface structure system of the physiological sanitary napkin created by the present invention is composed of a base sheet with a liquid-permeability function of a coating liquid absorber, and at least the skin-side surface covering the base sheet is a surface sheet formed of a resin film. The bulging portion formed by the surface sheet forms the side opening portion of the opening, and the above-mentioned base sheet also appears just below the bulging portion. (5) (5) M270791 Therefore, when menstrual blood with a relatively high viscosity flows in in a short period of time, the menstrual blood will pass through the side opening of the bulge, flow to the base sheet, and pass through the base sheet to be absorbed by the liquid. Absorbed. In addition, the bulge formed by the surface sheet can be deformed toward the base sheet by the weight of menstrual blood itself, so menstrual blood flows into the side openings of other bulges adjacent to the deformed bulge and reaches Base sheet. Therefore, when a large amount of menstrual blood flows, the menstrual blood can quickly flow to the liquid absorbing layer, and the menstrual blood can be prevented from spreading to the skin-side surface of the sanitary napkin. In addition, since the surface sheet forming the raised portion is formed of a resin film at least on the skin side, even if menstrual blood flows back from the liquid-absorbing layer through the base sheet, the menstrual blood line is covered by the surface sheet, so menstrual blood is not easily attached directly. To the skin. In addition, since the skin-side surface of the surface sheet is formed of a resin film, the surface sheet can cover the color of menstrual blood absorbed by the liquid-absorbing layer. Therefore, when looking at the skin-side surface of a physiological sanitary napkin during wearing, , It will feel healthier. In the above-mentioned surface sheet, in the horizontal direction and the vertical direction, a plurality of thin slits that are spaced in the horizontal direction and extend in the vertical direction are formed at intervals. In the horizontal direction, the raised portions are formed by the adjacent ones. The slit and the portion of the surface sheet between the slits are formed, and in a portion other than the raised portion, the surface sheet and the base sheet are joined to each other. In addition, the interval in the horizontal direction of the above-mentioned slits varies according to the position. The wide part enclosed by the above slits is toward the muscle. 8- (6) (6) M270791 Skin side bulge And forming the raised portion, and the narrow portion smaller than the width of the wide portion surrounded by the narrow slit is located closer to the surface of the base sheet than the top of the raised portion. As described above, since the fine slits are added to the surface sheet, it is possible to easily form the raised portions and the side openings. In particular, as described above, since the wide and narrow portions drawn by the slits are formed on the surface sheet, in the structure of the raised portion formed by the wide portion, the portion other than the raised portion is formed. In some cases, the base sheet is covered by the narrow section, or a lower ridge is formed on the narrow section. Therefore, the contact with the skin on the surface will be soft, and the entire area of the base sheet can be completely covered by the surface sheet. Therefore, menstrual blood can be prevented from flowing back to the liquid-absorbing layer, and the surface sheet can be used to mask the liquid-absorbing layer. Color of absorbed menstrual blood. In the above, the width portion and the width portion are alternately formed in the horizontal direction. For example, in this creation, the portion surrounded by the thin slits of the surface sheet may be subjected to a pressure or pressure / heating step to the skin side to deform it to form a raised portion. Or, when the surface sheet is expanded in the horizontal direction and contracted in the longitudinal direction, the surface sheet will be joined to the base sheet in a plurality of places, and the portion surrounded by the crevices and crevices It will bulge towards the skin side and form a bulge. In addition, the above-mentioned surface sheets in this work are a plurality of strip-shaped sheets that are separated from each other and extend continuously in the longitudinal direction. Each of the strip-shaped sheets is -9- (7) (7) M270791 at a distance in the longitudinal direction. The bonding portion is bonded to the base sheet, and a portion of the band-shaped sheet between the bonding portions adjacent to each other is raised from the base sheet toward the skin side to form the raised portion. At this time, the strip-shaped sheets are arranged in a horizontal direction at intervals, and between the adjacent strip-shaped sheets, a coating resin film covering the surface of the base sheet is provided. In addition, the coating resin film may be one having liquid-pervious holes or one having no liquid-pervious holes. However, the liquid-permeability of the coated resin film is preferably lower than that of the base sheet. In the above creation, the base sheet is covered with a resin film in the portion without the raised portion, so the backflow of menstrual blood from the liquid-absorbing layer to the surface of the base sheet can be prevented, and the liquid absorbed by the liquid-absorbing layer is prevented. The color of menstrual blood can also be masked by the surface sheet and the coated resin film. In the above, the raised portion may be formed by orienting the band-shaped sheet toward the skin side and deforming it by applying pressure or a pressurization / heating step. Alternatively, the base sheet is contracted in the longitudinal direction, and the space between the surface sheet and the joint portion of the base sheet is approached in the longitudinal direction, so that the surface sheet is raised from the base sheet to form the raised portion. Furthermore, when the sanitary napkin for the present invention is deformed in a concave shape on the skin side surface, the surface sheet is raised from the base sheet to form the raised portion. In other words, when the physiological sanitary napkin is deformed in accordance with the shape of the body, or when the physiological sanitary napkin is configured to stretch elastically in the longitudinal direction -10- (8) (8) M270791 shrinkage-proof leak-proof wall, When the skin side surface is bent and deformed by using this elastic contraction force, the surface sheet will stand up to form the raised portion. The deformation height can also be used to increase the raised height of the raised portion. The resin film on the surface sheet has openings, and the side openings are formed by expanding the openings or breaking the resin film around the openings. In this configuration, the system By using a person with a hole as the surface sheet, it is not necessary to particularly have a slit to form the above-mentioned lateral opening. Further, in the present invention, it is preferable that the base sheet is formed of a highly liquid-pervious sheet having a liquid-permeation function better than that of the surface sheet. Since the base sheet has excellent liquid permeability, the menstrual blood passing through the above-mentioned lateral openings can quickly move to the liquid-absorbing layer through the base sheet. In addition, since the surface sheet has a lower liquid permeability than the base sheet, the surface sheet can be used to prevent menstrual blood from adhering to the skin. In this case, it is preferable that the above-mentioned base sheet, at least the skin-side surface, is formed of a resin film having a large number of liquid permeation holes. If the base sheet is formed of a resin film, since a liquid perforation hole having a large opening area and a high area ratio can be formed, the menstrual blood flowing to the base sheet can pass through the liquid perforation hole more quickly. And absorbed by the liquid absorption layer. At this time, the resin film appearing on the skin side surface of the surface sheet will form a liquid-permeation hole, and the opening of the liquid-permeation hole of the surface sheet may be smaller than the above-mentioned ratio of -11-(9) (9) M270791. Opening area ratio of liquid permeation holes in the base sheet. However, the raised portion formed by the surface sheet may have a configuration that does not have a large number of liquid-permeation holes. [Effects of creation] In this creation, the surface structure system is composed of a liquid-permeable base sheet and at least the skin-side surface is made of a resin sheet. Since the surface sheet has a raised portion, menstrual blood can It passes through the side opening of the bulge to reach the base sheet and passes through the base sheet, and is easily absorbed by the liquid absorbing layer. In addition, since this work has a thin sheet of resin or a surface sheet containing a resin film, the menstrual blood exuded from the liquid-absorbing layer does not easily touch the skin of the wearer, and the menstrual blood absorbed by the liquid-absorbing layer The color can also be masked by the surface sheet. In addition, since there are a large number of the raised portions, the skin feel can be softened. [Embodiment] Fig. 1 is a perspective view showing a sanitary napkin according to the first embodiment of the present invention with the skin side surface facing upwards, and Fig. 2 is a π-II line for applying the physiology of Fig. 1 An enlarged half-section view of a sanitary napkin cut, FIG. 3 is an enlarged half-section view of a modified example, FIG. 4A is an enlarged exploded three-dimensional solution showing the structure of a surface structure, and FIG. 4B is an opening portion of a bulge Illustration of the shape. -12- (10) (10) M270791 As shown in Figure 1, the sanitary napkin 1 of the embodiment of this creation is a length dimension in the longitudinal direction (γ direction), which is longer than that in the horizontal direction (X direction). The longitudinal rectangle with a long width dimension has a symmetrical shape with a center line of 0 to 0 across the longitudinal direction. The external shape of the sanitary napkin 1 is convexly curved toward the front edge portion 1 a facing the wearer's abdomen and the rear edge portion 1 b facing the buttocks. The sanitary napkin 1 has side flap portions 2 and 2 protruding toward the left and right sides, and has a forward side edge portion that is curved toward the left and right sides at a position further forward than the side flap portions 2 and 2. 1 c, 1 c, and the rear side edge portions 1 d, 1 d which are convexly curved toward the left and right sides are located behind the side wings 2 and 2. As shown in the cross-sectional view of FIG. 2, the structure of the sanitary napkin 1 is a liquid-impermeable back sheet 3 having a clothing-side surface of the coating liquid-absorbing layer 4 and a coating liquid-absorbing layer 4. The surface structure 20 of the skin side surface. The surface structure 20 is composed of a base sheet 21 covering the skin-side surface of the liquid-absorbing layer 4 and a surface sheet 22 located on the skin-side surface of the base sheet 21. The peripheral edge of the liquid absorbing layer 4 is indicated by a dashed line in FIG. 1, and the liquid absorbing layer 4 is present in most of the sanitary napkin 1 except for the side wings 2 described above. The left and right sides of the sanitary napkin 1 are liquid-impermeable side sheets 5 and 5. The left and right sides of the base sheet 21 are sandwiched by the back sheet 3 and the side sheet 5. In this state, the back sheet 3, the base sheet 21, and the side sheet 5 are adhered to each other. The facing edge portions 5 a of the respective side sheets 5 are located above and below the left and right side portions of the liquid absorbing layer -13- (11) (11) M270791 'and are opposed by the facing edge portions 5a and the facing The portion surrounded by the edge portion 5 a becomes the liquid absorption region 6. The side wing portions 2 and 2 are formed by overlapping the back sheet 3 and the side sheets 5 and 5 with each other. On the opposite side of the liquid-absorbing region 6, the surface of the back sheet 4 has pressure-sensitive adhesive layers 7, 7, and a pressure-sensitive adhesive layer 8 is also provided on the skin-side surface of each flank portion 2. The back sheet 4 is formed of a resin film such as a liquid-impermeable polyethylene resin. The liquid absorbing layer 4 is formed of a mixture of pulverized pulp and a superabsorbent polymer (SAP), or an air-flow type pulp in which the pulp stacked by the air-flow method is fixed with an adhesive. The above-mentioned side sheet 5 is liquid-impermeable, and is a melting type formed of polyethylene (pE) resin fibers, polypropylene (PP) resin fibers, polyethylene terephthalate (PET) resin fibers, and the like. Nonwovens, spunbond nonwovens, spunbond nonwovens / melt nonwovens / spunbond nonwovens are superimposed on each other. As shown in Fig. 1, the liquid absorption region 6 has a compression groove formed by the liquid absorption layer 4 and the base sheet 21 and the surface sheet 22 being compressed together. The compression groove is composed of a pair of longitudinal compression grooves 11, 1 1 extending in the longitudinal direction, and a pair of longitudinal compression grooves 11, 1 1 connecting the two longitudinal compression grooves, and a convex lateral transverse compression groove 12, which is formed forward, and connected. The two longitudinal compression grooves 11 and 1 1 are formed by forming a convex rear transverse compression groove 13 toward the rear. The central absorbing region 14 surrounded by the longitudinal compression grooves 11 and 11, the front transverse compression grooves 12 and the rear transverse compression grooves 13 includes a plurality of raised portions 2 formed by the surface sheet 22. 3. -14- (12) M270791 FIG. 4A is an enlarged view showing the structure of the surface structure 20 formed by the surface sheet 22 and the base sheet forming the bulge 23. Both the base sheet 21 and the surface sheet 22 of the sanitary napkin 1 of the first embodiment are formed of a resin film. The resin film forming the base sheet 21 may be a PE resin film, a PP resin film, etc., and an inorganic filler such as titanium oxide, barium sulfide, or calcium carbonate is added and whitened. The above-mentioned base sheet 21 has a large number of liquid perforation holes 2 1 a arranged regularly, so that the liquid permeation function is enhanced. The opening area (actual opening area) of each of the liquid-permeation holes 21a is larger than 0. 2 to 30 m m2, and preferably 1 to 30 m m2. In addition, the area ratio of the opening of the liquid perforation hole 2 1 a is about 5 to 40% in the central absorption region 14, and in addition, in order to allow menstrual blood to pass through the liquid perforation hole 2 1 a, the liquid permeation hole 2 1 a is rapidly moved toward the liquid. The absorption layer 4 moves, and the base sheet 21 is preferably one having a surface coated with a surfactant, or coated with a surfactant on the inside of the film, and then subjected to a hydrophilic treatment. The surface sheet 22 is a low-density polyethylene (LDPE) resin film, a linear low-density polyethylene (LLDPE) resin film, a high-density polyethylene (HDPE) resin film, a PP resin film, or a mixture of the above resins. The resin sheet does not have a liquid permeation hole when forming the texture before the ridges 23 and 3, and cannot perform the liquid permeation function. In the embodiment shown in FIG. 1, in addition to being surrounded by the longitudinal compression groove Π, 11 and the front transverse compression groove 12 and the rear transverse compression groove -15- (13) (13) M270791 1 3 Parts other than the central absorption region 14 do not have the raised portion 23, so in the region without the raised portion 23, it is preferable to form a liquid permeation hole in the surface sheet 22. However, the opening area of the liquid permeation hole is smaller than the opening area of the liquid perforation hole 21a of the base sheet 21, and the opening area ratio is also low. As shown in Figure 4A, in order to allow the bulge 23 to easily deform freely due to the weight of the menstrual blood itself, the thickness of the resin film is preferably in the range of 10 to 150 / zm, and preferably 15 to 80. // m. The resin film forming the surface sheet 22 is mixed with the inorganic filler and whitened. In addition, in order to allow the menstrual blood to quickly move toward the base sheet 21, the surface of the surface sheet 22 is preferably subjected to a water-repellent treatment, and in order to allow the menstrual blood to move toward the base sheet 21, the hydrophilicity can be reversed. deal with. The raised portion 23 of the surface sheet 22 can be formed according to the steps shown in FIGS. 6A and 6B. As described above, in the first embodiment, although the resin film serving as the surface sheet 22 does not have a liquid-permeability function, as shown in FIG. 6A, the resin film is linearly arranged at intervals in the longitudinal (Y) direction. The slits 24 and the slits 25 which are also arranged linearly at a pitch in the longitudinal direction. Each of the fine slits 24 and the fine slits 25 are the same length in the longitudinal direction and are parallel to each other 1 °, and in the longitudinal direction, are formed with the same phase and the same pitch. . The horizontal direction (X direction) of the slits 24 and 25 is W1. The lengths in the longitudinal direction (Y direction) of the slits 26 and 27 are the same as those of the slits 24 and 25 described above. Slit 2 6 and Slit 2 7 series -16- (14) (14) M270791 are parallel to each other, and are aligned in the vertical direction with the same phase and the same pitch. The interval in the X direction between the slits 26 and 27 is W1 as described above. However, the arrangement of the slits 26 and 27 with respect to the arrangement of the slits 24 and 25 in the longitudinal direction (Y direction) differs by a half cycle. The interval in the horizontal direction (X direction) between the thin slits 25 and 26 and the interval in the horizontal direction (X direction) between the thin slits 2 7 and 24 are both w 2, and the interval W 2 is far greater than the above. The interval W1 is small. As shown in Figure A of Figure 6, the group of a pair of fine slits 2 4 and 25 and the group of one * pair of fine slits 26 and 27 are arranged in an alternating direction in the horizontal direction (X direction). Therefore, the portion enclosed by the slits 24 and 25 is the first width portion 31 of the width dimension W 1, and the portion enclosed by the slits 26 and 27 is The second wide portion 3 2 of the width dimension W 1 and the portion enclosed by the narrow slits 25 and 26 are the first wide width portion 3 3 of the width dimension W2 and the narrow slit 27 The portion enclosed by the slits 24 is the first wide portion 34 of the width dimension W2. Fig. 6B shows the forming die 40 for forming the surface sheet 22 having a plurality of slits as described above. The forming die 40 includes a facing die 41 and a punch 43. In addition, a plurality of forming protrusions 42 are formed in the die 41. Each of the formed convex portions 42 has the same shape and size, the upper surface 42a is bent in the γ direction, and the two side surfaces 4 2 b and 4 2 b are vertical planes. Each of the forming convex portions 42 is aligned so as to face the first wide portion 31 and the second wide portion 32 of each of the surface sheets 22. In addition, the first narrow portion 3 3 and the second narrow portion 34 between the forming convex portions 42 and the forming convex portions 42 adjacent to each other in the X direction face each other -17- (15) M270791 Between the die 4 3 and the above-mentioned forming protrusions 42 juxtaposed in the vertical direction, there is a fitting with a minimum gap between the surface sheet die 41 and the die 43 which will form a plurality of fine slits. Use the die 41 and the die to press the surface sheet 22, or at a temperature below the softening point of the surface resin film, and in the state where the shape 43 is heated, the sheet can be as shown in Figure 4A. A plurality of raised portions 23 are formed on 22. In this embodiment, all the raised portions 23 are the same. However, the width portion 31 of the narrow slits 24 and 25 of the narrow slits 31 is represented by the symbol 23 A for the raised portions formed by being pressed by the force. The quilt 26 and the second wide portion 32 of the quilt are represented by the symbol 2 3 B as a raised portion formed by being pressed by 42. The groups of the fine slits 24 and 25 are separated from each other by a half period in the direction of the fine slits 26 and 27. Therefore, the ridges 2 3 A are separated by a half pitch in the Y direction. In addition, the ridges 23B are arranged alternately in the horizontal direction (X direction). In FIG. 4A, in order to explain the raised portion, the raised portion 23A is curved by the thin slit 24 and the thin first wide portion 31 corresponding to the forming convex portion 42. Bulge shape. In the following, the multiple convex portions 32 and the pressing portion 44 formed by being separated by the slits 25 are formed. 2 2 is clamped in shape 4 3, and the die 22 of the sheet 22 is shown at the normal temperature as a die. The surface shape and size of the 1g shaped convex portion 42 2 7 are sandwiched by the above-mentioned shaped convex portion. It is because the edge of the surface sheet at the shape of the surface 4 2 a which is separated by the slit 25 in the structure of Y and the bulge 2 3 BS 23A and the bulge 23A is called the separation -18- (16) (16) M270791. Edge. One of the separation edge portions 24b formed by the surface sheet 21 being separated from each other by the slits 24 is the edge of the first wide portion 31, but the separation edge portion 24b is from the other separation edge portion 24a. Widely separated upward, so a wide opening is formed on the side of the ridge 2 3 A. The side opening 35a of the mouth is the same. The dividing edge portion 25b of one side separated from each other by the slits 25 is the edge of the first wide portion 31, and the separating edge portion 25b is formed from the other side. The separation edge portion 25a is largely separated upward, and a side opening portion 3 5 b with a large opening is formed on the side of the raised portion 23 A. In addition, a bottom opening portion 36 is formed directly below the first wide portion 31 which forms the raised portion 23 A, and a separation opening portion 36 is formed between the separation edge portion 24a and the separation edge portion 25a. Inside, the base sheet below it will be exposed. In Fig. 4B, the side openings 3 5 a and 3 5 b are shown by a person projecting in the X direction. In addition, in Fig. 4B, the bottom opening portion 36 is indicated by hatching. Similarly, in the raised portion 23B, one of the separation edge portions 26b separated by the slit 26 is largely separated upward from the other separation edge portion 26a, so that a side opening 37a 'is formed and is slit. The separation edge portion 27b separated by 27 is largely separated upward from the separation edge portion 27a to form a lateral opening portion 37b. In addition, directly below the second wide portion 32 forming the raised portion 23ΊB, between the separation edge portion 26a and the separation edge portion 27a, there is a bottom opening portion 3 8-19 which exposes the base sheet 21. -(17) (17) M270791 As shown in Figure 4A, each of the ridges 2 3 a has the first wide end 31 in the Y direction at both ends, that is, from the base sheet 2 1 The erected base portion has front and rear opening portions 39a that open in the Y direction. Similarly, each of the raised portions 2 3 B also has both ends in the Y direction of the second wide portion 32, that is, the base portion erected from the base sheet 21 has front and rear opening portions that open in the Y direction. 3 9 b. The opening areas of the respective front and rear openings 3 9 a ′ 3 9 b are smaller than the opening areas of the respective lateral openings 35 a, 35 b, 37 a, and 37 b. The first narrow portion 33 located between the narrow slits 25 and 26 does not swell upwards like the raised portions 23, but is located slightly lower than the top of the raised portions 23, and The surface of the base sheet 21 is covered. Similarly, the second narrow width portion 34 sandwiched by the narrow slits 27 and 24 does not substantially swell upward like the raised portions 23, but covers the surface of the base sheet 21. In the present surface structure 20, the base sheet 21 and the surface sheet 22 are connected to each other at portions other than the raised portions 23 (23 A, 23 B). Next, the physiological hygiene of the first embodiment described above is performed. Cotton's menstrual blood absorption function will be explained. As shown in FIG. 2, the present sanitary napkin 1 is “the skin-side surface of the liquid-absorbing layer 4 is covered with a base sheet 21 having high liquid permeability”, and even on the skin-side surface, it overlaps itself The surface sheet 22 whose liquid absorption function is inferior to that of the base sheet 21 (in the first embodiment, does not exert a liquid-permeability function), and in the central absorption region 14, also because of the above surface -20- (18) (18) The M270791 sheet 22 forms a plurality of ring-shaped raised portions 23 (23A, 23B). When the menstrual blood flows to the central absorption region 14, the menstrual blood passes through the lateral openings 3 5 a and 3 5 b which are large openings on the X side toward the X side, and flows to the exposed 2 3 A The base sheet 21 in the bottom opening 36 just below the bottom. Similarly, menstrual blood also passes through the side openings 37a, 37b which are large openings in the bulge 23B in the X direction to reach the base sheet 21 of the bottom opening 38 exposed directly below the bulge 23B. Because the base sheet 21 has a large opening area, the liquid perforation holes 21a are formed at a high opening area ratio. Therefore, menstrual blood flowing to the bottom openings 3 6 and 38 can quickly pass through the liquid of the base sheet 21. The holes 2 1 a are absorbed by the liquid absorption layer 4 below them. Fig. 4A shows a state pattern in which menstrual blood 45 with a high viscosity flows to the central absorption region 14. Menstrual blood with higher viscosity 4 5 — Once flowing to the central absorption area, forming the first wide portion 31 of the bulge, it will deform concavely toward the base sheet 21 due to the weight of the menstrual blood 4 5 itself. After that, menstrual blood 45 will flow into the lateral opening 3 7 a ′ of the bulge 32B located next to the deformed bulge 23A and directly reach the base sheet 38 of the bottom opening 3 8 directly below the bulge 2 3 B. 2 1 ′ and is absorbed by the liquid absorption layer 4 through the liquid transmission hole 2 1 a. Therefore, even if a large amount of menstrual blood flows in in a short period of time, the menstrual blood passes through the side openings 3 5 a, 3 5 b '3 7 a, 3 7 b and reaches the bottom openings 3 6, 3 8 and is exposed through the The base sheets 2 1 of the bottom openings 36, 38 can be quickly absorbed by the liquid absorbing layer 4. In addition, even if pressure is applied to a sanitary napkin, menstrual blood that has been absorbed by the liquid absorbing layer 4 passes through the liquid permeation holes 2 1 a of the base sheet 21 and oozes out through -21-(19) (19) M270791. The skin-side surface of the base sheet 21 has a first wide portion 3 1 forming a raised portion 23A, a second wide portion 23B forming a raised portion 23B, and the raised portion 2 on the surface of the base sheet 21. The first narrow part 3 3 between 3 A and 2 3 B and the narrow part 3 4 of bamboo 2 can prevent the menstrual blood of the base sheet 21 from directly contacting the skin. In addition, since the outermost surface of the sanitary napkin 1 on the skin side has the whitened surface sheet 22, the color of menstrual blood absorbed by the liquid-absorbing layer 4 can be masked by the surface sheet 22. The color of menstrual blood cannot be visually observed during use, so a hygienic appearance can be maintained. The sanitary napkin 1 that performs this function is more effective when the wearer has the following actions. When the wearer wearing the sanitary napkin 1 is in a sitting position, the amount of menstrual blood excretion is small because the vaginal opening is compressed. At this time, the first wide portion 31 constituting the raised portion 2 3 A and the second wide portion 32 constituting the raised portion 23B are deformed by the pressure of the inter-strand portion, so that the base sheet 21 overlaps. Therefore, even if the menstrual blood absorbed by the liquid absorbing layer 4 permeates through the liquid perforation holes 21A of the base sheet due to pressure, it can be blocked by the above-mentioned wide portions 3 1, 3 2 and the menstrual blood cannot easily contact the wearer's Skin, so it can have a more comfortable wearing touch. When the wearer suddenly stands from the sitting position described above, the pressure at the vaginal opening is not seen, and a large amount of menstrual blood quickly flows to the skin-side surface of the sanitary napkin 1. At this time, since the pressure on the sanitary napkin 1 is also reduced, as shown in FIG. 4A, each of the raised portions 2 3 will be from the base-22- (20) (20) M270791 sheet 2 1 Stand up to the skin side, and let the menstrual blood flow into the side openings 3 5 a, 3 5 b of the bulge 2 3 A and the side openings 3 7 a, 3 7 b of the bulge 2 3 B, and expose to the bottom through The base sheet 21 of the opening portion 36 and the bottom opening portion 38 is quickly absorbed by the liquid absorbing layer 4. In the embodiment shown in FIG. 4A, since the raised portion 23 A has front and rear opening portions 3 9 a 'so it flows in the longitudinal direction' and flows into the menstrual blood between the raised portion 2 3 A and the raised portion 2 3 A '. The base sheet 21 will pass through the front and rear openings 3 9 a. The same applies to the front and rear openings 39 b formed in the raised portion 2 3 B and the raised portion 2 3 B. Therefore, the menstrual blood can be prevented from spreading in the vertical and horizontal directions, and can be quickly absorbed by the liquid absorbing layer 4. Fig. 5A is a perspective view of a modification of the first embodiment. The surface structure 2 OA of the sanitary napkin 1 A shown in FIG. 5A has a surface sheet 22 A formed of the same resin film as the first embodiment, and the surface sheet 22A also has a large number Of the liquid through the hole 2 2 a. The opening area of each liquid permeation hole 22a is 0. 2 ~ 10. The opening area ratio of 0mm2 'is about 1 to 25%, and the liquid permeation function of the surface sheet 22A itself is lower than that of the base sheet 21. The so-called liquid permeation function in this specification refers to the artificial operation of the permeation sheet of the base sheet 21 when the same amount of menstrual blood flows to the skin-side surfaces of the base sheet 21 and the surface sheet 22A at the same speed under the same conditions The flow of menstrual blood (per unit area, and the permeation amount of artificial menstrual blood per unit area) is larger than the surface sheet 22A. Furthermore, when the base sheet 21 and the surface sheet 22A are both the same thickness -23- (21) (21) M270791 degrees and the same resin film, and under the same conditions such as hydrophilic treatment, the opening of the liquid permeation hole The one with a larger pore area and the higher pore area ratio has better liquid permeability. However, the liquid permeation function is not absolutely proportional to the opening area and area ratio of the liquid permeation hole, but also because of the hydrophilicity or water repellency of the resin film, the thickness of the resin film, or the liquid permeation hole 2 1 a, 2 2 The shape of a varies. When the base sheet 21 and the surface sheet 22A are not the same resin film or the same thickness, and the shapes of the liquid perforation holes 2 1 a, 2 2 a are not the same, it is best to use the liquid permeability function determined by the artificial menstrual blood described above. It is set so that the base sheet 21 is smaller than the surface sheet. Preferably, the flow of artificial menstrual blood through the base sheet 22 is 1 to the flow of the surface sheet 2 2 A. 5 times or more 'is more preferably 2 times or more. The above artificial menstrual blood line is 1. In 4 liters of ion-exchanged water, 300 g of glycerin, 30 g of carboxymethylcellulose · sodium, and 40 g of sodium chloride are added, and if necessary, red pigment can be added. In the surface structure 20A shown in FIG. 5A, the surface sheet 22A is provided with raised portions 2 3 D formed at a certain interval in the longitudinal direction (Y direction), and also in the same direction in the longitudinal direction. The raised portion 23E formed by the pitch. The bulge 23D is the same shape as the bulge 2 3 A shown in FIG. 4A, and the shape of the bulge 2 3E is the same as that of the bulge 2 3B shown in FIG. 4A. This difference is that, compared with the ridges 23A and 23B shown in FIG. 4A, the front and rear openings 39a and 39b are provided. Although the ridges 23D and 23E shown in FIG. 5A do not have the front and rear openings 3 9 a, 3 9 b, but on the surface where the ridges 2 3 D and 2 3 E are formed are thin -24- (22) M270791 sheet 22A, which has a large number of liquid transmission holes 22a. The surface sheet 22A of the raised portions 23D and 23E of the surface structure 20A shown in FIG. 5 has liquid 3 menstrual blood which is unlikely to remain in the raised portions 2 3 D and 2 3 E. In each of the above embodiments, the surface sheet portions 2 3 A, 2 3 B, 2 3 D, 2 3 E have side openings 3 7a, 3 7b, so menstrual blood can pass through the side openings to the base sheet 2 1. Therefore, if the base sheet has a structure that has the effect of flowing to the liquid absorbing layer 4, it has excellent liquid permeability and can effectively prevent the liquid from dripping. In order to enhance the prevention of the liquid return of the base sheet 21, FIG. 5B (No. 5 The cross-sectional expansion of the BB line in FIG. A: Each liquid transmission hole 2 1 a is designed as a tapered hole that gradually becomes smaller as it accumulates toward the liquid, and a valve 2 1 b protruding at the lower end is formed. Or, It is also possible to improve the effect of applying a water repellent treatment to the base sheet 2 1 by setting the minimum area ratio of the liquid perforation hole 2 1 a in the optimal range. In addition, the liquid permeation station with the valve 2 1 b ascended Here, the color of the menstrual blood absorbed by the liquid absorbing layer 4 is evaluated as follows. The so-called prevention of the liquid of the base sheet 21 is as follows. Let the pulp having a square shape (100x100mm) and 100g / m2 attract A sample of 5 grams of artificial menstrual blood was placed on the sheet sample, and filter paper was placed on the sheet sample. Because the ridge I via hole 22a was formed, the ridge portions 35a, 35b of 2 2, 2 A were quickly and partly delivered. It can prevent the liquid from returning to the surface structure. FIG,) as shown, the layer 4 t, ^ towards the opening surface area of the liquid absorbing layer having an opening 4 of a range, or by preventing backflow of liquid ^ holes 2 1 a, f may be mentioned masking effect. The effect of reflow can be based on the weight per unit area. Place a thin layer on it and then place it on the bottom surface. -25- (23) (23) M270791 A square with a shape of 100x100mm and a weight of 5kg, apply about 4. At a pressure of 9 kPa, at this time, the less the amount of artificial menstrual blood transferred to the filter paper (the diffusion area of artificial menstrual blood on the filter paper), the better the effect of preventing the liquid from flowing back. In the embodiment shown in Fig. 5A, the combination of the surface sheet 22A and the base sheet 21 having the above-mentioned significant effect of preventing liquid reflux can be described as follows. (1) Neither the liquid passage hole 22a of the surface sheet 22A nor the liquid passage hole 2 1 a of the base sheet 21 has a valve 2 1 b. At this time, in order to make the liquid permeation function of the base sheet 21 higher than the liquid permeation function of the surface sheet 22A, it is preferable to set the opening area and opening area ratio of the liquid perforation holes 2a, 22a. This is a use form which is suitable for a female 'wearing the sanitary napkin, which is difficult to apply pressure to the skin-side surface of the sanitary napkin when there is a lot of work while standing. (2) The liquid transmission hole 22a of the surface sheet 22A and the liquid transmission hole 2 1 a of the base sheet 21 both have a valve 2 1 b. At this time, in order to make the liquid permeation function of the base sheet 2 1 higher than the liquid permeation function of the surface sheet 22A, it is better to set the opening area and opening area ratio of the liquid perforation holes 21a, 22a, and prevent the surface sheet 22A The effect of liquid reflux is better than that of the base sheet 21. This is a use form suitable for a woman 'who wears the sanitary napkin to work when she sits down and is likely to apply pressure to the skin-side surface of the sanitary napkin. (3) The liquid transmission hole 22a of the surface sheet 22A does not have the valve 21a, and the liquid transmission hole 2 1a of the base sheet 21 has a combination of a valve 2 1b. At this time -26- (24) (24) M270791 'For the base sheet 2 1 to have better liquid permeability than surface sheet 2 2 A', it is better to set the liquid permeation holes 2 1 a, 2 2 a Opening area and opening area ratio. In addition, the surface sheet 2 2 A and the base sheet 21 may have the same effect of preventing liquid backflow, or the surface sheet 22A may be more effective in preventing liquid backflow than the base sheet 21. This is suitable for women who wear the sanitary napkin. The work of standing and sitting is performed alternately, etc., and it is required to comply with the function form in the middle of (1) and (2) above. In each of the above embodiments, the width dimension in the X direction of the width portions 31, 32 of the surface sheets 22, 22A forming the raised portions 23 is 0. 5 to 10 mm, preferably 1 to 5 mm. In addition, the length dimension of the raised portion 23 in the longitudinal direction (Y direction) is 3 to 20 mm, and preferably 8 to 15 mm. When the size is within the above range, the vaginal opening does not feel uncomfortable, and even if the raised portion collapses due to body pressure, it can easily return to a convex shape. The interval between the ridges 23 parallel to each other in the horizontal direction is 0 to 10 mm, preferably 0 to 5 mm. The opening area of each of the side openings 3 5 a, 3 5 b, 3 7 a, and 3 7 b is 3 to 100 mm 2, preferably 10 to 50 mm 2. If it is below the range, 'menstrual blood will not be easily guided to the inside of the bulge portion 23', and if it exceeds the range, it will penetrate into the surface of the base sheet 21, and the menstrual blood will easily adhere to the skin. The number of the raised portions 23 is preferably 50 to 800 per 100 cm2, and more preferably 100 to 500. If it is below the range ’-27- (25) (25) M270791, the raised part has a low function of preventing menstrual blood from spreading to the surroundings’, so menstrual blood is likely to spread on the surface of the sanitary napkin. If it exceeds the above range, the number of the lateral openings 35a, 35b, 37a, 37b is too large, and the menstrual blood that penetrates the surface of the base sheet 21 becomes easy to adhere to the skin. In the above-mentioned embodiment, although the respective raised portions 23 are the same size, the sizes of the raised portions may be different depending on the location, or the raised portions having different areas viewed from above may be mixed with each other. presence. In addition, the surface 的 of the raised portion located at the longitudinal centerline 0_0 may be large, but as the distance from the longitudinal centerline 0-0 increases, the area of the raised portion gradually decreases. Fig. 3 shows a surface structure 20B of a sanitary napkin 1B as a modification of the first embodiment. In this surface structure 20B, the raised portions 23F and 23G are similar to the raised portions 2 3 A and the raised portions 2 3 B, and are arranged at a half pitch in the longitudinal direction (Y direction). The surface sheet 22 (or 22 A) forming the ridges 23F and 23G is inclined in the lateral direction (X direction). The bulge 2 3 F '2 3 G shown in FIG. 3 is oriented toward the longitudinal centerline 0-0, and the side openings 3 5 b and 3 7 b are large openings and are oriented toward physiological hygiene. The edge of cotton has side openings 3 5 a and 3 7 a with small openings. Therefore, menstrual blood does not easily spread to the left and right edges of the sanitary napkin on the skin-side surface of the sanitary napkin 1B. Figs. 7A and B are perspective views of the surface structure 120 of the sanitary napkin according to the second embodiment of the present invention and the manufacturing steps thereof. -28- (26) (26) M270791 In the second embodiment, as shown in Fig. 7A, the surface sheet 22 (or 22A) forming the slits 24, 25, 26, 27 is used. The method for forming the slits of the surface sheet 22 is the same as that of the first embodiment shown in Fig. 6A. In the second embodiment, the surface sheet 22 forming the slits 24, 25, 26, 27 has a pulling force Fx in the lateral direction (X direction). Due to the pulling force Fx, the surface sheet 22 is separated in the slits 24, 25, 26, 27 and expands in the X direction. Finally, a contraction force in the longitudinal direction (Y direction) is generated on the surface sheet 22 fy. Once the contraction force fy in the longitudinal direction starts to act, and the surface sheet 22 contracts in the longitudinal direction, the first wide portion 31 sandwiched by the slits 24 and 25 will bulge and deform upward to form a raised portion 123A. Similarly, the second narrow portion 33 and the second narrow portion 34 surrounded by the narrow slits 26 and 27 will face the lateral direction (X direction) when the surface sheet is pulled in the lateral direction. The narrow portions 3 3 and 3 4 are deformed to perform the function of connecting the ridges 123A and the ridges 123B. In a state where the above-mentioned surface sheet 22 is given the above-mentioned pulling force Fx, the portions other than the raised portions 123A and 123B are joined to the base sheet 21. Therefore, on both sides of the raised portion 1 2 3 A, the side openings 1 3 5 a and 1 3 5 b of the base sheet 21 will open, and on both sides of the raised portion 1 23B, The side openings 13 7a, 13 7 b through the base sheet 21 are formed. The surface structure 1 2 0 is formed only by applying a horizontal pulling force Fx to the surface sheet 22 that is inserted into the slit. So its manufacturing steps -29- (27) (27) M270791 are extremely simple. In addition, the menstrual blood flowing to the surface structure 120 can flow into the side openings 135a, 135b, 137a, and 137b, and can quickly move to the liquid-absorbing layer 4 through the base sheet 21. When the surface sheet 22 is given a pulling force Fx in the lateral direction, the surface sheet 22 may be gradually stretched in the X direction by a roller or the like when the surface sheet 22 is fed out in the Y direction. Alternatively, the base sheet 21 and the surface sheet 22 shown in FIG. 7A are laminated on the liquid absorbing layer 4, and then as shown in FIG. 1, the longitudinal compression grooves Π 5 1 1 are formed so that The pulling force Fx pulled in the lateral direction acts on the surface sheet 22 to form raised portions 123 A, 123B. At this time, in the area enclosed by the longitudinal compression groove 11 and the longitudinal compression groove 11, if the bulkiness of a part of the sanitary napkin is made higher in advance, the longitudinal compression groove 1 1, 1 1 can be used. Formation, and the surface sheet 22 can easily act on the pulling force Fx in the lateral direction. Fig. 8 is a perspective view showing the manufacturing steps of the surface structure according to the third embodiment of the present invention. In the third embodiment, as shown in Fig. 8A, a plurality of slits 28 continuously extending in the longitudinal direction of the surface sheet 22 (or 22A) are formed. The slits 28 are parallel to each other and spaced a certain distance W3 in the lateral direction. The slits 28 may be formed in a horizontal direction at different intervals from each other. In Fig. 8B, a forming die 140 molded into the surface sheet 22 shown in Fig. 8A is shown. The forming die 140 is provided with a forming die 1 4 1 and a punching die 1 4 3 which are arranged to face each other. In addition, the die 1 4 1 has a plurality of forming protrusions 1 42. Each of the formed convex portions 142 has the same shape, and is continuous in the direction of -30- (28) (28) M270791 (X direction), and is formed at a certain interval in the longitudinal direction (Y direction). The upper surface 1 42a of each of the forming convex portions 1 42 is formed by being bent in the Υ direction. In addition, between the forming protrusions 1 42 and the forming protrusions 1 42 juxtaposed in the longitudinal direction, a punch 1 43 is provided with a pressing portion 1 4 4 fitted with a minimum clearance, and the pressing portion 1 4 The 4 series is formed continuously in the horizontal direction (X direction). The above-mentioned surface sheet 22 shown in FIG. 8A is sandwiched between the die 141 and the die 143, and the normal sheet 141 and the die 143 are used to press the surface sheet 22 at normal temperature, or the surface sheet is formed. The resin film of 22 is at a temperature below the softening point of the resin film, and in a heated state, the die 141 and the die 143 are pressed. Because of this step, the portion of the surface sheet 22 surrounded by the slits 28 and 28 will be raised to form a raised portion. A surface structure is formed by joining the raised portion of the surface sheet 22 and the middle portion of the raised portion (the portion pressed by the pressing portion) to the surface of the base sheet 21. This surface structure has bulges having a shape as shown in Fig. 4A, which are arranged at a certain pitch in the vertical direction and are arranged side by side in the horizontal direction. Figs. 9A and 9B show the surface structure 220 of the sanitary napkin used in the fourth embodiment of the present invention, and its manufacturing steps. In the fourth embodiment, as shown in FIG. 9A, a plurality of strip-shaped sheets 1 2 2 are used to cut the surface sheet 22 (or 22A) in a predetermined width dimension W4. Send the strip sheet 122 and the base sheet 21 in the Y direction. -31-(29) (29) M270791 At this time, the feeding speed V 1 of the strip sheet 1 22 can be set to be higher than that of the base sheet 21. Speed V2 is fast. Then, as shown in Fig. 9, the band-shaped sheet 1 22 and the base sheet 21 are bonded to each other by using the bonding portions 22 1 spaced apart from each other in the longitudinal direction. Because of the difference in the above-mentioned conveying speed, the strip-shaped sheet 122 bulges upwardly between the joining portion 221 and the joining portion 221 at a pitch in the longitudinal direction, thereby forming raised portions 223 A and 223 B. In the example shown in Fig. 4B, the ridges 223 A and 223 B are oriented in the longitudinal direction and are formed with a arranging period spaced at half intervals from each other. In addition, in the embodiment shown in FIG. 9, the strip-shaped sheet 1 22 does not protrude with a substantial interval in the horizontal direction. Since the ridges 2 2 3 A and 2 2 3 B are provided, the sheet is formed at the base. On the skin-side surface of 21, there are raised portions 2 2 3 A and 2 2 3 B having substantially no pitch. Therefore, the band-like sheet 1 2 2 can cover menstrual blood flowing back from the liquid-absorbing layer 4 to the surface of the base sheet 21, so that the menstrual blood can be prevented from adhering to the skin and the menstrual blood absorbed by the liquid-absorbing layer 4 can be exerted Masking effect. The manufacturing steps of the surface structure 220 shown in FIG. 9B can also be implemented by the following method. As the base sheet 21, a person having stretchability in the longitudinal direction (Y direction) is used. For example, when the base sheet 21 is corrugated, non-woven fabrics such as a breathable nonwoven fabric having liquid permeability and elasticity may be partially adhered to the clothing side surface of the base sheet 21. In a state where the elastic base sheet 21 is stretched in the longitudinal direction, the band-shaped sheet 1 2 2 is bonded to the skin-32- (30) M270791 side surface at a distance in the longitudinal direction to form After the above-mentioned joint portion 22 1 °, the pulling force of the base sheet 21 is released, and the base sheet 21 is expanded and contracted in the longitudinal direction to form the raised portions 223A and 223B as shown in FIG. 9B. In addition, from the first embodiment to the third embodiment described above and the modifications thereof, even in the embodiments described later, similarly, the base sheet 21 can be contracted by using the pulling force given to the base sheet 21. 'Come to form a bulge. Figures 10, A, B, and C are partial perspective views of other embodiments of the surface structure manufactured by using the manufacturing steps shown in Figure 9; The surface structure 2 20A, and the base sheet 321 are formed of a liquid-permeable non-woven fabric. The non-woven fabric is a non-crossover type non-woven fabric formed by using hydrophilic fibers such as pulp or rayon as the main body, or a hot-air-blown composite heat-synthetic composite synthetic fiber with hot air, and an air-permeable non-woven fabric, Alternatively, a plurality of liquid-permeating holes and the like are formed on a spunbond nonwoven fabric formed of a synthetic resin fiber subjected to hydrophilic treatment. Alternatively, as in the above-mentioned embodiments, the base sheet 2 1 of the resin film having a large number of liquid permeation holes can also be used to manufacture the band-shaped sheet 1 2 2 in the longitudinal direction by using the same manufacturing steps as shown in FIG. 9. Partially bonded to the base sheet 3 2 1 in the direction at a distance 'to form a bonding part 2 2 3 A, and between the bonding part 2 2 1 and the bonding part 2 2 1, the band-shaped sheet 1 2 2 faces upward The bulge can form bulges 2 2 3 a, 223B. -33- (31) (31) M270791 In the surface structure 220A shown in FIG. 10A, although the ridges 223 A and 223 B are arranged at intervals in the horizontal direction, the ridges 22 3 A A gap between 22 3 B is provided with a coating resin film 124, and the coating resin film 124 is attached to the skin-side surface of the base sheet 321. The coating resin film 124 is substantially liquid-impermeable like the surface sheet 22, or has a liquid-permeation hole 22a with a small opening area like the surface sheet 22A, and the liquid-permeation function is inferior to that of the base sheet 321. By. In any case, the coated resin film 1 24 contains an inorganic filler and is whitened. When menstrual blood flows to the surface structure 22 0A, the menstrual blood flows into the interior of the ridges 223 A and 22 3 B and passes through the base sheet 321 and is absorbed by the liquid-absorbing layer. And because the surface of the base sheet 321 is covered with the raised portions 22 3 A, 223 B and the coating resin film 124, the menstrual blood absorbed by the liquid absorbing layer 4 is not easily attached to the skin, and can be covered by the raised portion 223 A , 223 B and the color of menstrual blood of the resin film 124. Fig. 10B shows a surface structure 220B as a modification of the fifth embodiment. In this surface structure 220B, the base sheet 321 is formed of an assembly of strip-shaped films, and each strip-shaped film has a liquid-permeation hole. In addition, the band-shaped sheet 1 22 is partially bonded to the skin-side surface of the base sheet 3 2 1 to form raised portions 223 A and 223 B.
隆起部22 3 A，223 B係在橫方向（X方向）上隔以間距 地配置著。最好是，基部薄片3 2 1 A，其在隆起部2 2 3 A -34 - (32) (32)M270791 ，223B的正下方，疊層了 1張或2張左右的帶狀薄片， 在隆起部223A，223B之間，疊層2張以上，也就是疊層 張數多於上述隆起部223A，223B的正下方。如此一來， 就可形成基部薄片321 A在其隆起部22 3 A，223 B的正下 方，液體容易透過，而在隆起部22 3 A，22 3 B之間，則其 透液功能較差的構成。 在該表面構造體220B中，流至的經血移行到隆起部 223 A，223 B的內部，並透過疊層張數較小的帶狀薄片的 液透過孔，而流到液吸收層4。且因基部薄片3 2 1 A的肌 膚側表面係被隆起部223 A，223 B所包覆，所以在被隆起 部223 A，223 B所包覆的部份，因其透液功能較差，所以 被液吸收層4所吸收的經血就不易滲到最表面，故不易 接觸到肌膚。並且，也可遮蔽被液吸收層4所吸收之經 血的顏色。 第1 〇圖C係爲第5實施形態之變形例的表面構造體 220C的部份立體圖。 該表面構造體220C的基部薄片421，其肌膚側表面 係由具多數的液透過孔的樹脂薄膜422所形成，並在著 衣側表面係重疊黏著了由經親水處理之合成樹脂纖維所 形成的不織布423。帶狀薄片122係部份地接合在基部薄 片421上，而形成隆起部223A，223B。 上述基部薄片421係在位於隆起部22 3 A，223 B的正 下方的位置部份，形成了凹部424。隆起部22 3 A，22 3 B 係在橫方向（X方向）隔以間隔般地配置，且在隆起部 -35- (33) (33)M270791 223 A，223 B之間，基部薄片4 2 1並沒有形成凹部。 當經血流至該表面構造體220C時，經血會從開口於 隆起部2 23 A，22 3 B之側方的側方開口部流入隆起部 223A，223B的內部，且該經血在到達凹部424內後，就 會通過基部薄片4 2 1的液透過孔而被液吸收層4所吸收 〇 因爲上述凹部424可貯留液體，所以即使在短時間 內流入了大量經血，該經血可暫時被貯留在凹部424內 ，所以可防止經血朝橫方向擴散。此外，又因在凹部4 2 4 的上方具有形成隆起部223A，223B帶狀薄片122，所以 凹部424內的經血不易附著到肌膚。 再者，在上述各實施形態中，可利用讓生理用衛生 棉變形成彎曲狀，而使各隆起部隆起，或是可增大隆® 部的高度。當將生理用衛生棉裝著在胯間時，因爲生$ 用衛生棉的肌膚側表面會呈凹陷般變形，所以在變形@ 部份就會形成隆起部，或可增大隆起部的高度。 或者是，在生理用衛生棉的肌膚側表面設置可朝^ 方向發揮彈性收縮力的防漏壁，並藉由肌膚側表面@ # 防漏壁的彈性收縮力而呈凹部變形，而使上述隆起部$ 起，或也可增大隆起部的高度。 也就是說，生理用衛生棉之變形的部份，其隆起# 的隆起高度就愈大，故可防止該部份之經血的擴散’ _ 而提昇防止經血側漏的效果。 第Π圖係本創作之第6實施形態的表面構造體5 2 ^ -36- (34) (34)M270791 的立體圖。 在該表面構造體520，係使用於第5圖A或B所示 之具有液透過孔22a的表面薄片22A。在該表面薄片22 A 並不具有細縫，而被供給至於第6圖B中所示的成形模 4 0，並在常温下被形模41及衝模4 3所挾壓。或者是可 在樹脂薄膜的軟化點以下的温度，予以過熱挾壓亦可。 雖然可利用形模4 1的成形凸部4 2而使在表面薄片2 2 A 形成隆起部5 2 3 A，5 2 3 B，但此時，表面薄片2 2 A的液透 過孔22a係呈伸展張開狀，或是因液透過孔22a已被伸 展，所以在其周圍，表面薄片22A就會發生斷裂，並在 隆起部 5 2 3 A形成朝X方向之兩方向開孔的側方開口部 5 3 5 a，並在隆起部5 2 3 B形成側方開口部5 3 7 a。 在本實施形態中，側方開口部5 3 5 a，5 3 7的開孔面 積，係約小於上述各實施形態中者。因此，移行至隆起 5 2 3 A及5 2 3 B內部的經血，就不易流出外部而沾到肌膚 ，並且可通過位於隆起部523A及523B之下方的基部薄 片2 1的液透過孔2 1 a，而輕易被液吸收層4所吸收。 本創作並不受限於上述各實施形態’也可有各種不 同的變化。第12圖A，B，C則爲其他實施形態的立體 圖。 於第1 2圖A所示的表面構造體5 2 0 A，係因爲利用 成形模來挾壓具有多數的液透過孔22a的表面薄片22A ，而形成了約呈立方體狀的隆起部5 2 3 C，5 2 3 D ’此時’ 上述液透過孔22a係展開，或在液透過孔22a周圍的樹 -37- (35) (35)M270791 脂薄膜會斷裂，而形成側方開口部5 3 5 a，5 3 7 a。此外， 隆起部5 2 3 C，5 2 3 D係在橫方向（X方向）上呈並列配置。 再者’在第 4圖或第5圖所示的實施形態中，各隆起部 亦可如第1 2圖A所示般，呈立方體形狀。 於第12圖B所示的表面構造體52 0B，係藉由利用 成形模來挾壓具有多數的液透過孔22a之表面薄片22A ，而形成了圓點狀隆起部5 2 3 E，此時，上述液透過孔 22a係呈展開狀，或液透過孔22a之周圍的樹脂薄膜係呈 破裂，而在圓點狀基部周圍形成複數的側方開口部5 3 6。 如第1 2圖A，B所示般，隆起部的形狀係可任意變 更。此外，這些表面構造體52 OA，520B，因基部薄片21 係包覆著隆起部以外的部份，所以從基部薄片2 1所滲出 來的經血就不易附著到肌膚，且被液吸收層4所吸收的 經血的顏色，亦可被表面薄片22A所遮蔽。 於第12圖C所示的表面構造體620，係爲第8圖、 第9圖及第1 0圖A、B、C所示之實施形態的變形例。 在該表面構造體620，形成隆起部223C，223C的帶狀薄 片1 22A的兩側緣非爲直線，而形成鋸齒部1 23。 在本創作中，於上述各實施形態中，基部薄片及表 面薄片可僅由樹脂薄膜所形成，或者是基部薄片及表面 薄片，係由朝向肌膚側表面的樹脂薄膜、及在該著衣側 表面疊層的親水性不織布所形成。 【圖式簡單說明】 -38- (36) M270791 第1圖係顯示將本創作之第1實施形態的生理用衛 生棉的著衣側表面朝上的立體圖。 第2圖係顯示被Π -11線切斷之第1圖所示的生理用 衛生棉的半剖面圖。 第3圖係顯不上述生理用衛生棉之變形例的剖份剖 面圖。 第4圖A係顯示第1實施形態之生理用衛生棉的表 面構造體的分解立體圖，B則爲表面構造體之側方開口 部與底部開口部之形狀的說明圖。 第5圖A係顯示第1實施形態之生理用衛生棉的表 面構造體之變形例的分解立解圖，B則爲上述A的B - B 線的剖面擴大圖。 第6圖A、B係顯示本創作之第1實施形態的表面構 造體的製造方法之一例的立體圖。 第7圖A、B係顯示爲了說明本創作之第2實施形態 的表面構造體及其製造步驟的立體圖。 第8圖A、B係顯示本創作之第3實施形態的表面構 造體的製造方法的立體圖。 第9圖A、B係顯示本創作之第4實施形態的表面構 造體及其製造步驟的立體圖。 第1 〇圖A、B、C係顯示本創作之第5實施形態的 表面構造體及其變形例的部份立體圖。 第1 1圖係顯示本創作之第6實施形態的表面構造體 的立體圖。 -39- (37) M270791 第1 2圖A、B、C係顯示做爲各實施形態之變形例 的表面構造體的立體圖。 【主要元件符號說明】 1 ，：I A.................生理用衛生棉 3........................背面薄片 4 液吸收層 5 .. 6 " 11 12 13The raised portions 22 3 A and 223 B are arranged at intervals in the horizontal direction (X direction). Preferably, the base sheet 3 2 1 A is formed by laminating one or two band-shaped sheets directly below the bulge 2 2 3 A -34-(32) (32) M270791, 223B. Between the ridges 223A and 223B, two or more sheets are laminated, that is, the number of layups is more than directly below the ridges 223A and 223B. In this way, the base sheet 321 A can be formed directly below the raised portions 22 3 A, 223 B, and the liquid is easily transmitted, and between the raised portions 22 3 A, 22 3 B, the liquid permeability is poor. Make up. In this surface structure 220B, the menstrual blood flowing therethrough migrates to the inside of the ridges 223 A, 223 B, and passes through the liquid permeation holes of the strip-shaped thin sheets with a small number of laminations, and flows to the liquid absorbing layer 4. And because the skin-side surface of the base sheet 3 2 1 A is covered by the raised portions 223 A, 223 B, the portion covered by the raised portions 223 A, 223 B has poor liquid permeability, so Since the menstrual blood absorbed by the liquid-absorbing layer 4 cannot easily penetrate to the outermost surface, it is difficult to contact the skin. In addition, the color of menstrual blood absorbed by the liquid absorbing layer 4 may be masked. Fig. 10C is a partial perspective view of a surface structure 220C according to a modification of the fifth embodiment. The base sheet 421 of the surface structure 220C has a skin-side surface made of a resin film 422 having a large number of liquid-permeation holes, and a garment-side surface formed by superimposing a synthetic resin fiber that has been subjected to hydrophilic treatment. Non-woven 423. The band-like sheet 122 is partially bonded to the base sheet 421 to form raised portions 223A, 223B. The base sheet 421 is formed at a position directly below the raised portions 22 3 A, 223 B, and a recessed portion 424 is formed. The ridges 22 3 A, 22 3 B are arranged at intervals in the horizontal direction (X direction), and between the ridges -35- (33) (33) M270791 223 A, 223 B, the base sheet 4 2 1 does not form a recess. When menstrual blood flows to the surface structure 220C, menstrual blood flows into the bulges 223A, 223B from the side openings that open on the sides of the bulges 2 23 A, 22 3 B, and the menstrual blood reaches the recesses 424 After the inside, it will be absorbed by the liquid absorption layer 4 through the liquid transmission hole of the base sheet 4 2 1. Because the recessed portion 424 can store liquid, even if a large amount of menstrual blood flows into it in a short time, the menstrual blood can be temporarily stored in The recessed portion 424 prevents the menstrual blood from spreading in the horizontal direction. In addition, since the belt-shaped sheet 122 forming the raised portions 223A and 223B is provided above the recessed portion 4 2 4, menstrual blood in the recessed portion 424 is not easily attached to the skin. Furthermore, in each of the above-mentioned embodiments, each of the raised portions can be raised by making the sanitary napkin into a curved shape, or the height of the raised portion can be increased. When a sanitary napkin is placed in the chin, since the skin-side surface of the sanitary napkin is deformed like a depression, a raised portion may be formed at the deformed @ portion, or the height of the raised portion may be increased. Alternatively, a leak-proof wall capable of exerting elastic contraction force in the direction of ^ is provided on the skin-side surface of the physiological sanitary napkin, and the recess is deformed by the elastic contraction force of the skin-side surface @ # Or increase the height of the bulge. In other words, the deformed part of the physiological sanitary napkin has a larger bulge height, so the menstrual blood can be prevented from spreading in this part, and the effect of preventing menstrual blood leakage can be improved. Figure Π is a perspective view of the surface structure 5 2 ^ -36- (34) (34) M270791 of the sixth embodiment of the present creation. The surface structure 520 is used as a surface sheet 22A having a liquid transmission hole 22a shown in Fig. 5A or B. The sheet 22A does not have a slit on the surface, and is fed to the forming die 40 shown in FIG. 6B, and is pressed by the forming die 41 and the punch 43 at normal temperature. Alternatively, it may be superheated and pressed at a temperature below the softening point of the resin film. Although the raised portions 5 2 3 A and 5 2 3 B can be formed on the surface sheet 2 2 A by using the forming protrusions 4 2 of the die 41, the liquid transmission holes 22a of the surface sheet 2 2 A are present at this time. It is stretched, or because the liquid perforation hole 22a has been stretched, the surface sheet 22A will be broken around it, and the bulging portion 5 2 3 A will form a side opening 5 that opens in two directions in the X direction. 3 5 a, and a side opening 5 3 7 a is formed in the raised portion 5 2 3 B. In this embodiment, the areas of the openings of the side openings 5 3 5 a and 5 3 7 are approximately smaller than those in the above embodiments. Therefore, menstrual blood that migrates to the inside of the ridges 5 2 3 A and 5 2 3 B does not easily flow out and stick to the skin, and can pass through the liquid permeation holes 2 1 a of the base sheet 21 located below the ridges 523A and 523B. , And easily absorbed by the liquid absorption layer 4. This creation is not limited to the above-mentioned embodiments, and may have various changes. Figures 12A, B, and C are perspective views of other embodiments. The surface structure 5 2 0 A shown in FIG. 12A is formed by pressing a surface sheet 22A having a large number of liquid permeation holes 22a with a forming die, thereby forming a cuboid-shaped raised portion 5 2 3 C, 5 2 3 D 'At this time' The above-mentioned liquid perforation hole 22a is unfolded, or the tree around the liquid perforation hole 22a -37- (35) (35) M270791 The lipid film will break to form a side opening 5 3 5 a, 5 3 7 a. The ridges 5 2 3 C and 5 2 3 D are arranged side by side in the horizontal direction (X direction). Furthermore, in the embodiment shown in Fig. 4 or Fig. 5, each raised portion may have a cube shape as shown in Fig. 12A. In the surface structure body 52 0B shown in FIG. 12B, a dome-shaped raised portion 5 2 3 E is formed by pressing a surface sheet 22A having a large number of liquid transmission holes 22a with a forming die. The liquid permeation hole 22a is expanded, or the resin film around the liquid permeation hole 22a is cracked, and a plurality of lateral openings 5 3 6 are formed around the dot-shaped base. As shown in Figs. 12A and 12B, the shape of the raised portion can be arbitrarily changed. In addition, since these surface structures 52 OA and 520B are covered with the base sheet 21 other than the raised portion, menstrual blood leaked from the base sheet 21 is not easily attached to the skin and is absorbed by the liquid-absorbing layer 4 The color of the absorbed menstrual blood may be masked by the surface sheet 22A. The surface structure 620 shown in FIG. 12C is a modified example of the embodiment shown in FIGS. 8, 9 and 10A, B, and C. In this surface structure 620, the edges of both sides of the strip-shaped sheet 1 22A forming the raised portions 223C, 223C are not straight, and the serrated portions 123 are formed. In this creation, in each of the above embodiments, the base sheet and the surface sheet may be formed of only a resin film, or the base sheet and the surface sheet may be formed of a resin film facing the skin-side surface and the garment-side surface. It is formed by laminated hydrophilic nonwoven fabric. [Brief description of the drawings] -38- (36) M270791 The first figure is a perspective view showing the garment-side surface of the sanitary cotton of the first embodiment of the present invention facing upward. Fig. 2 is a half cross-sectional view of the sanitary napkin shown in Fig. 1 cut by the line Π-11. Fig. 3 is a sectional view showing a modified example of the aforementioned sanitary napkin. Fig. 4A is an exploded perspective view showing the surface structure of the sanitary napkin of the first embodiment, and B is an explanatory view showing the shapes of the side openings and the bottom openings of the surface structure. Fig. 5A is an exploded perspective view showing a modified example of the surface structure of the sanitary napkin according to the first embodiment, and B is an enlarged cross-sectional view taken along the line B-B of A. Figs. 6A and B are perspective views showing an example of a method of manufacturing a surface structure according to the first embodiment of the present invention. Figs. 7A and B are perspective views showing a surface structure and a manufacturing process for explaining the second embodiment of the present invention. Figs. 8A and 8B are perspective views showing a method of manufacturing a surface structure according to a third embodiment of the present invention. Figs. 9A and 9B are perspective views showing a surface structure and a manufacturing process of the fourth embodiment of the present invention. Fig. 10A, B, and C are partial perspective views showing a surface structure and a modified example of the fifth embodiment of the present invention. Fig. 11 is a perspective view showing a surface structure according to a sixth embodiment of the present invention. -39- (37) M270791 Fig. 12 A, B, and C are perspective views showing a surface structure as a modification of each embodiment. [Description of Symbols of Main Components] 1, ： I A .......... ....... back sheet 4 liquid absorbing layer 5 .. 6 " 11 12 13
14 20 ， 20A ， 20B 2 1·· 2 1a14 20 ， 20A ， 20B 2 1 ·· 2 1a
22 ， 22A ， 22B 22a................. 23，23A，23B ....側部薄片 ....液吸收區域 ....縱壓縮溝 ....前方橫壓縮溝 ....後方橫壓縮溝 ....中央吸收區域 ……表面構造體 ....基部薄片 .....液透過孔 .......表面薄片 ....液透過孔 ，23D， 23E，23F，23G.......隆起部 24，25，26，27，2 8...細縫 3 1........................第1幅寬部 32.........................第2幅寬部 3 3..........................第1幅窄部 -40- (38) M270791 34........................ 第2幅窄部 3 5a，35b，37a，37b.....側方開口部 36，3 8......... ..........底部開口部 39a， 39b...... ..........前後開口部 40 …·. .........成形模 4 1 …·· .........形模 4 3 …·. .........衝模 4 5 …·· .........經血 120.·· .........表面構造體 122... ........帶狀薄片 1 23 A ，1 23B. ..........隆起部 124... ……被覆樹脂薄膜 13 5a， 135b， 13 7a， 1 3 7b... ..........側方開口部 220， 220A … ..........表面構造體 22 1 ... .......接合部 223 A ，223B. .........隆起部 5 2 0， 5 2 0A， 5 20B ，620 ... .........表面構造體 5 2 3 A ，5 2 3 B ，523C ， 5 2 3 D ，523E. ..........隆起部 5 3 5 a， 53 7a， 5 3 6 ......側方開口部22, 22A, 22B 22a .............. 23, 23A, 23B ... Side flakes ... Liquid absorption area ... Longitudinal compression groove. ... Front horizontal compression groove ... Back rear horizontal compression groove ... Central absorption area ... Surface structure ... Base sheet ... Liquid perforation hole ... Surface sheet .... Liquid perforation holes, 23D, 23E, 23F, 23G ........ Swelled portions 24, 25, 26, 27, 2 8 ... Slit 3 1 ......... ......... 1st width 32 ......... 2nd width Part 3 3 ............. 1st narrow part-40- (38) M270791 34 ........ ...... 2nd narrow section 3 5a, 35b, 37a, 37b ......... side opening 36, 3 8 ........ ............... Bottom openings 39a, 39b .................. Front and rear openings 40 ............ Die 4 1 ............ Shaped die 4 3 ............ Punching die 4 5 ............ Menstrual blood 120. · · ...... Surface structure 122 ... ........ Strips 1 23 A, 1 23B ............... Bulge 124 .. ...... Coated resin films 13 5a, 135b, 13 7a, 1 3 7b ... ......... side openings 220, 220A ........... Surface structure 22 1 ............... Joint portions 223 A, 223B .......... Elevated portions 5 2 0, 5 2 0A, 5 20B, 620 ... ......... Surface structures 5 2 3 A, 5 2 3 B, 523C, 5 2 3 D, 523E ................ Bulge 5 3 5 a, 53 7a, 5 3 6 ... side opening
-41 --41-