200938171 九、發明說明 【發明所屬之技術領域】 本發明，係關於生理用衛生棉等之吸收性物品。 【先前技術】 以往，於作爲吸收性物品之生理用衛生棉，爲了抑制 被排泄出來的經血等之液體漏出，提案有一種於表面薄片 G 側形成有凹狀之防漏溝的生理用衛生棉。 例如，提案有一種由透液性表面薄片及不透液性背面 薄片、及夾介於該等兩薄片間之吸收體所組成，且於芯片 所在之區域的上兩面側，具備有朝向芯片的長度方向延伸 之一對壓縮條溝的生理用衛生棉（例如，參照專利文獻1 )。具備有此等壓縮條溝生之理用衛生棉，係藉由在使透 液性表面薄片與吸收體重合之狀態下使用所期望之成形模 型以高壓壓縮而得到。藉由具備有此等之壓縮條溝，可抑 © 制在表面流動的經血之漏出。 又，藉由具備有此等之壓縮條溝，可抑制滲透過表面 ，薄片被芯片吸收的經血朝向寬幅方向外側漏出。亦即，滲 .透過表面薄片被芯片吸收的經血朝向寬幅方向外側移動時 ，經血被其爲位於芯片的壓縮條溝之被壓縮的部分之高密 度部所吸附，而可抑制朝向寬幅方向外側之漏出。 又，由於此等之壓縮條溝會發揮其作爲折彎起點的功 能，故可使生理用衛生棉之朝向排泄部的合貼性提昇。亦 即，以此等之壓縮條溝作爲折彎起點，被夾於壓縮條溝的 -4- 200938171 區域會以朝向排泄部側突出’並緊貼於排泄部之方式變形 0 [專利文獻〗]專利第3 053 56 1號公報 【發明內容】 [發明所欲解決之技術問題] 但是，專利文獻1之生理用衛生棉的壓縮條溝，係將 φ 表面薄片及芯片之雙方予以壓縮而形成，故藉由形成於芯 片的壓縮條溝之高密度部被吸附的經血會朝向表面薄片側 移動。因此，經血的紅色夾介表面薄片在視覺上被過度辨 認，故有讓使用者感到不快之情形。 又，專利文獻1之生理用衛生棉的壓縮條溝，具有顯 示從表面觀察之經血吸收可能的區域之角色功能，故必須 使彼此隔開一定之寬幅來形成。此爲於壓縮條溝彼此之寬 幅較窄之場合，會讓使用者對於吸收量感到不安之故。因 © 此，以朝向排泄部側突出之方式變形的區域之寬幅，會有 與排泄部之寬幅不一致之情形。 本發明，目的爲提供一種藉由把形成於吸收體的高密 度區域，形成於：相對於形成於至少表面薄片的凹溝部之 寬幅方向內側，對於被吸收體吸收的經血具優異之隱蔽性 的吸收性物品。 [解決問題之技術手段] (1)具備有：其至少一部分爲透液性之表面薄片、 -5- 200938171 及不透液性之背面薄片、以及被配置於上述表面薄片與上 述背面薄片間之保液性之吸收體的縱長狀之吸收性物品， 其特徵爲：具備有：朝向該吸收性物品之長邊方向延伸地 形成於上述吸收體，並具有連續性或斷續性地形成於上述 長邊方向的高密度部之一對高密度區域；以及朝向上述長 邊方向延伸地形成於至少上述表面薄片之一對凹溝區域， 上述高密度區域，爲夾著將該吸收性物品於寬幅方向均分 Ο 的中心線而形成，上述凹溝區域，係於上述寬幅方向，形 成於上述高密度區域之外側。 (2 )如（1 )所記載之吸收性物品，其中上述高密度 區域之各別，係形成爲位於上述吸收體之上述表面薄片側 凹陷的凹溝狀，上述高密度部，爲斷續性地形成於該凹溝 狀之底部。 (3 )如（2 )所記載之吸收性物品，其中上述凹溝區 域之各別，爲上述表面薄片及上述吸收體凹陷所形成，於 © 上述凹溝區域各別的底部，斷續性地形成有上述表面薄片 及上述吸收體被壓縮而形成的高密度積層部。 .(4 )如（3 )所記載之吸收性物品，其中於上述長邊 方向’形成於上述凹溝區域各別的高密度積層部之間隔， 爲比形成於上述高密度區域各別的高密度部之間隔還寬。 【實施方式】 以下，根據附圖說明關於作爲本發明之實施形態的吸 收性物品之生理用衛生棉1。 -6 - 200938171 首先，根據第1圖到第3圖，說明關於生理用衛生棉 1之構造。第1圖，爲生理用衛生棉1之平面圖。第2圖 ，爲生理用衛生棉1之X-X斷面圖。第3圖，爲構成生理 用衛生棉1的吸收體4之平面圖。 如第1圖所示，作爲吸收性物品之生理用衛生棉1， 爲大致縱長狀。生理用衛生棉1，具備有：透液性之表面 薄片2、及不透液性之背面薄片3、以及被配置於表面薄 〇 片2與背面薄片3間之吸收體4。又，生理用衛生棉1， 具備有：形成於吸收體4之作爲高密度區域的一對第1壓 縮溝5、5、以及形成於表面薄片2與吸收體4之作爲凹溝 區域的一對第2壓縮溝6、6。 表面薄片2及形成有第1壓縮溝5、5的吸收體4，係 藉由在將表面薄片2積層於吸收體4之狀態下形成之第2 壓縮溝6、6以及熱熔接著劑等被貼合固定。又，背面薄 片3及吸收體4,係藉由熱熔接著劑等被貼合固定。表面 ® 薄片2與背面薄片3,係藉由熱熔接著劑及熱密封被貼合 地接合。 .又，於生理用衛生棉1，形成有用以固定於內褲的側 翼10、10及無圖示之固定部。無圖示之固定部，係形成 於位於生理用衛生棉1之背面薄片3的中央。藉由固定部 被固定於內褲的胯下部之內側，使生理用衛生棉1被固定 於內褲。於側翼1 〇、1 〇之第1圖的背面側，形成有無圖 示之黏著部。藉由將該側翼1 0、1 0翻折於背面薄片3側 並將黏著部貼附於內褲之外側，可將生理用衛生棉1安裝 200938171 於內褲。 其次，說明關於構成生理用衛生棉1之各構成要素。 表面薄片2，爲採用嫘縈等之纖維素纖維、由合成纖 維樹脂等所形成的噴網不織布、由PE、PP、PET等之合 成樹脂纖維所形成的不織布、藉由上述合成樹脂纖維所形 成的氣流不織布等。又，背面薄片3、吸收體4以及熱熔 黏著劑，可採用使用於一般生理用衛生棉者。在此，關於 〇 本實施形態，於吸收體4，亦含有被配置於表面薄片2與 該吸收體4間之被稱作第二薄片或緩衝薄片的不織布。 如第1圖至第3圖所示，作爲高密度區域之第1壓縮 溝5、5，爲形成於吸收體4。第1壓縮溝5、5，爲夾著中 心線CL朝寬幅方向X彼此相互分離地形成於吸收體4。 又，第1壓縮溝5、5，爲朝向長邊方向Y延伸地形成。 第1壓縮溝5、5，係被形成爲位於吸收體4之表面薄片2 側所凹陷的凹溝狀。 Φ 第1壓縮溝5、5之各別，係具備有：斷續性地朝向 長邊方向Y延伸形成之複數個高密度部5a地構成。具體 上，第1壓縮溝5、5之各別，爲具備有：斷續性地沿著 位於該第1壓縮溝5、5各別的底部形成之複數個高密度 部5a。詳細爲，如第1圖及第3圖所示，第1壓縮溝5、 5之各別，爲具備有：交互形成於第1壓縮溝5、5各別的 底部之高密度部5a與中密度部5b地構成。 第1壓縮溝5、5之各別，係藉由使吸收體4通過形 成有：對應於第1壓縮溝5、5之形狀而形成的凸狀部之 -8 - 200938171 壓花輥筒與平面輥筒之間而形成。具體上，爲藉由使吸收 體4通過在第1壓縮溝5、5之表面斷續性地形成突起部 而形成的凸狀部與平面輥筒之間並施以壓擠（壓縮）處理 而形成。在此，作爲壓縮（壓擠）處理吸收體4之手段， 不僅爲如上述般壓花與平面輥筒之組合，亦可爲其一方或 兩方爲板狀之模型，亦可於其沒有形成凸狀部之側的表面 形成對應於該凸狀部的凹部。 〇 高密度部5a，爲被強力壓縮（壓擠）之部分，中密度 部5b，爲被壓縮較弱之部分。高密度部5a，爲在位於上 述之凸狀部的突起部處，將吸收體4之一部分強力壓擠而 形成的部分，且爲使構成吸收體4的材料之密度變得較高 地構成之部分。具體上，爲以吸收體4之鄰接於第1壓縮 溝5、5的區域（沒有被壓縮之區域）的密度作爲基準， 使密度變高地構成。該高密度部5a，爲密度形成得比中密 度部5b還高。 © 中密度部5b，爲如上述般壓縮較弱的部分，且爲以其 構成吸收體4的材料之密度比鄰接的區域還高之方式形成 _ 的區域。中密度部5b，爲對應於：鄰接於位在凸狀部的突 起部之突起部間的部分，且爲藉由鄰接之高密度部5a與 高密度部5a被強力壓縮，其結果成爲被壓縮較弱的區域 。中密度部5b，係以其構成吸收體4的材料之密度爲比鄰 接之區域還高，而比高密度部5a的密度還低之方式形成 〇 第1壓縮溝5、5，爲相對於中心線CL成爲線對稱地 -9- 200938171 形成。而，第1壓縮溝5、5，爲於寬幅方向X相互分離 20mm到50mm，較佳爲僅分離25mm到45mm地形成。第 1壓縮溝5、5之寬幅方向X的分離間距比20mm更小時， 則作爲形成於第1壓縮溝5、5間之中央區域的中央部20 之密度會變高而有剛性比所需以上還高之情形。亦即，以 朝向排泄部側突出之方式變形時，會有無法順利變形之情 形。又，於裝著狀態，會有中央部20變得比所需以上還 ® 硬而裝著性降低之情形。相反地，第1壓縮溝5、5之寬 幅方向X的分離間距比50mm更大時，則中央部20之寬 幅比排出部的寬幅寬太多，故會有對於排泄部得不到適切 之貼合性之情形。 其爲位於第1壓縮溝5、5之寬幅方向X的長度之寬 幅尺寸，爲〇_5mm到10mm，較佳爲1mm到5mm。於第1 壓縮溝5、5之寬幅尺寸比0.5mm更小之場合，則會有吸 收體4於製造時或使用時沿著第1壓縮溝5、5斷掉之情 ® 形。又，會有不能充分吸附經血，而無法抑制經血漏出於 寬幅方向X外側之情形。又，會有不能得到充分的剛性， 故在中央部20以朝向排泄部側突出之方式變形時不能發 揮作爲折彎起點的功能之情形。相反地，第1壓縮溝5、5 之寬幅尺寸比1 〇mm更大時，則第1壓縮溝5、5之剛性 過變得過高，故會有裝著時之合貼性或使用感降低之情形 〇 在此，第1壓縮溝5、5之剛度，爲300mgWnch到 3000mg/inch，較佳爲 500mg/inch 到 2500mg/inch。於第 1 -10- 200938171 壓縮溝5、5之剛度爲比300mgWnch還小之値的場合，於 裝著時，相對於生理用衛生棉1之寬幅方向X兩側，不能 使從兩大腿部施加而來之朝向寬幅方向X內側的力傳達至 吸收體4，故有不能使中央部20朝向排泄部側突出地變形 之情形。相反地，於第 1壓縮溝 5、5之剛度爲比 3000mg/inCh更大之値的場合，會有剛性太高而使裝著時 之合貼性或使用感降低之情形。在此，第1壓縮溝5、5 © 之剛度，係根據JIS L-1096 8.20.1 A法（格利法）之規定 來測量。 構成第1壓縮溝5、5的高密度部5a彼此之位於長邊 方向Y的間隔，爲0.5mm到10mm，較佳爲2mm到5mm 。高密度部5a彼此之位於長邊方向Y的間隔比〇.5mm更 小時，則第1壓縮溝5、5之剛性變高’會有使裝著時之 合貼性或使用感降低之情形。相反地，高密度部5 a彼此 之位於長邊方向Y的間隔比1 〇mm更大時’則高密度部5a ❹ 彼此之間隔太寬，而有無法抑制後述之經血從寬幅方向X 外側漏出之情形。 第1壓縮溝5、5之各別，會發揮作爲抑制其滲透過 表面薄片2被吸收體4吸收的經血漏出於寬幅方向X外側 之防漏部的功能。具體上，第1壓縮溝5、5，主要爲藉由 構成該第1壓縮溝5、5的複數個高密度部5a’吸附滲透 過表面薄片2被吸收體4之中央部20吸收的經血且爲朝 向寬幅方向X外側移動的經血’而抑制經血漏出於寬幅方 向X外側。 -11 - 200938171 又，第1壓縮溝5、5之各別，係作爲使中央部20以 朝向排泄部側突出之方式變形的折彎起點來發揮其功能° 具體上，第1壓縮溝5、5,係使其爲寬幅方向X之長度 比後述之2條壓縮溝6、6還短（寬幅較窄）的區域之中 央部20突出地擋接於排泄部。 第1壓縮溝5、5之各別，爲僅形成於吸收體4。換言 之，爲與後述之第2壓縮溝6、6不同，第1壓縮溝5、5 〇 之各別，並非在被積層於表面薄片2或背面薄片3之狀態 下形成。亦即，在表面薄片2之對應（覆蓋）於第1壓縮 溝5、5的區域，沒有形成密度被調高之高密度部或相當 於後述之第2壓縮溝6、6的凹溝區域。又，構成第1壓 縮溝5、5的高密度部5a之各別，爲從表面薄片2分離。 又，第1壓縮溝5、5之各別，沒有直接接合於表面薄片2 。具體上，高密度部5a之各別，沒有被壓著於表面薄片2 〇 ❹ 在此，於生理用衛生棉1，在第1壓縮溝5、5各別的 寬幅方向外側，形成有第2壓縮溝6、6。 作爲凹溝區域之第2壓縮溝6、6之各別，係形成爲 表面薄片2及吸收體4所凹陷之凹溝狀的區域。第2壓縮 溝6、6之各別，爲在使表面薄片2與吸收體4積層之狀 態下藉由壓縮（壓擠）處理而形成。第2壓縮溝6、6，係 構成其整體爲呈葫蘆狀之環狀的防漏溝60之一部分的部 分，且爲形成於上述之第1壓縮溝5、5的寬幅方向X外 側的部分。在此，第2壓縮溝6、6，從表面薄片2之上面 -12- 200938171 觀察，爲形成於寬幅方向χ之最內側的壓縮溝。 第2壓縮溝6、6之各別，爲具備有斷續性地朝向長 邊方向Y延伸地形成之複數個高密度積層部6a地構成。 具體上，第2壓縮溝6、6之各別，爲具備有沿著該第2 壓縮溝6、6各別之底部斷續性地形成之複數個高密度積 層部6a。詳細爲，如第1圖所示，第2壓縮溝6、6之各 別，爲具備有交互形成於第2壓縮溝6、6各別之底部的 〇 高密度積層部6a、以及中密度積層部6b地構成。 第2壓縮溝6、6，係可與上述之第1壓縮溝5、5同 樣地形成。亦即，第2壓縮溝6、6，可藉由使表面薄片2 及形成有第1壓縮溝5、5的吸收體4在積層之狀態下， 通過形成有對應於第2壓縮溝6、6之凸狀部的壓花輥筒 與平面輥筒之間，施以壓縮（壓擠）處理而形成。在此， 作爲形成第2壓縮溝6、6之手段，其不限定於壓花輥筒 及平面輥筒的組合之點爲與上述相同。 β 與第1壓縮溝5、5之高密度部5a同樣地，高密度積 層部6a，爲被強力壓擠（壓縮）之部分，而中密度積層部 6b，爲壓縮較弱之部分。高密度積層部6a，爲將表面薄片 . 2及吸收體4之一部分強力壓擠（壓縮）而形成之部分， 且爲構成表面薄片2的材料之密度變高，同時構成吸收體 4的材料之密度變高地構成之部分。該高密度積層部6a， 爲以其表面薄片2及吸收體4各別之密度變得比中密度積 層部6b還高之方式形成。 中密度積層部6b，如上述般爲壓縮較弱之部分，係以 -13- 200938171 其構成表面薄片2及吸收體4的材料之密度變得比鄰接區 域之各別還高之方式形成的區域。中密度積層部6b，係藉 由鄰接之高密度積層部6a與高密度積層部6a被強力壓縮 ，其結果成爲壓縮較弱的區域。中密度積層部6b，係以其 構成表面薄片2及吸收體4各別的材料之密度變得比鄰接 之區域還高，且各別之密度比高密度部5a還低之方式形 成。 〇 第2壓縮溝6、6，爲相對於中心線CL成爲線對稱地 形成。又，第2壓縮溝6、6，爲於寬幅方向X，形成得比 第1壓縮溝5、5更外側。具體上，第2壓縮溝6、6之各 別，爲從第1壓縮溝5、5之各別朝向寬幅方向X外側分 離1 · 5 mm到2 0 mm，較佳爲僅分離3 mm到1 0mm地形成。 第2壓縮溝6、6之各別及第1壓縮溝5、5之各別的距離 比1.5mm更小時，會有被第1壓縮溝5、5吸附的經血被 第2壓縮溝6、6之高密度積層部6a吸附之情形。亦即， Φ 由於其爲被表面薄片2覆蓋而處於被隱蔽之狀態的第1壓 縮溝5、5之高密度部5a所吸附的經血被高密度積層部6a 吸附，而有經血之紅色露出於外部的情形。又，會不易使 後述之中央部20以立起之方式變形。相反地，第2壓縮 溝6、6之各別及第1壓縮溝5、5之各別的距離比20mm 更大時，會有中央部20之寬幅變窄之情形。此時，不能 完全吸收滲透過表面薄片2之經血，會有經血越過第1壓 縮溝5、5而漏出於寬幅方向X外側之情形。此時，經血 朝向高密度積層部6a移動，亦有經血之紅色露出於外部 -14- 200938171 的情形。 其爲位於第2壓縮溝6、6之寬幅方向X的長度之寬 幅尺寸，爲〇.5mm到10mm，較佳爲lmm到5mm。於第2 壓縮溝6、6之寬幅尺寸比〇.5mm更小之場合，有表面薄 片2及吸收體4在製造時或使用時沿著第2壓縮溝6、6 斷掉之情形。亦有不能充分捕集沿著表面薄片2之表面流 動的經血之情形。又，不能充分地吸附經血，而有無法抑 Φ 制經血漏出於寬幅方向X外側之情形。相反地，第2壓縮 溝6、6之寬幅尺寸比l〇mm更大時，則第2壓縮溝6、6 之剛性過高，故會有裝著時之合貼性或使用感降低之情形 〇 在此，位於第2壓縮溝6、6之高密度積層部6a彼此 的間隔，爲比位於第1壓縮溝5、5之高密度部5a彼此的 間隔還寬地形成。位於第1壓縮溝5、5之高密度部5a， 由於必須使在吸收體4之內部朝向寬幅方向X外側移動之 © 經血不會漏出於外側地在短時間內將其吸附，故有相互近 接地形成之必要。相對於此，第2壓縮溝6、6，是爲了阻 止沿著表面薄片2之表面流動的經血之流動，故只要形成 爲凹狀即可，且只要高密度積層部6a可於特定時間內吸 附流入凹部的經血之程度地形成即可。具體上’位於高密 度積層部6a之長邊方向Y的間隔，爲2mm到20mm ’較 佳爲5mm到15mm。於位在高密度積層部6a之長邊方向 Y的間隔比2mm更小之場合，會有第2壓縮溝6、6之剛 性沒有提升而於裝著時不能以合貼於身體之方式變形的情 -15- 200938171 形。相反地，位於高密度積層部6 a之長邊方向γ的間隔 比20mm更大時，會有不能吸附沿著表面薄片2之表面陷 入第2壓縮溝6、6的經血之情形。此時’在陷入第2壓 縮溝6、6的經血移動於吸收體4之前’又會有沿著表面 薄片2之表面漏出於生理用衛生棉1之寬幅方向X外側的 情形。 又，位於第1壓縮溝5、5之高密度部5 a的面積率P @ ;以及位於第2壓縮溝6、6之高密度積層部6a的面積率 Q，爲面積率P>面積率Q。在位於第2壓縮溝6、6之高 密度積層部6a之面積率Q較高之場合’由於位於第2壓 縮溝6、6整體之密度會上昇，故被第1壓縮溝5、5吸入 的經血易於被第2壓縮溝6、6吸入。因此，會有經血之 紅色露出於外部的情形。 第2壓縮溝6、6之各別，會發揮其作爲抑制沿著表 面薄片2之表面流動的經血漏出於寬幅方向X外側之防漏 〇 溝的功能。具體上，第2壓縮溝6、6，爲藉由把沿著表面 薄片2之表面流動的經血用凹部捕集，同時其形成於位在 該凹部之底部的高密度積層部6a將該被捕集之經血朝吸 收體4側吸附，而抑制經血漏出於寬幅方向X外側。 又，第2壓縮溝6、6之各別，爲發揮其作爲使被夾 於第2壓縮溝6、6彼此的區域3 0以朝向排泄部側突出之 方式變形的折彎起點之功能。具體上，爲與第1壓縮溝5 、5協力使中央部20以擋接於排泄部之方式變形。 又，第2壓縮溝6、6之各別，係發揮其作爲可從外 -16- 200938171 部視覺辨認之防漏溝且作爲顯示可吸收經血的區域之標記 的功能。亦即，藉由第2壓縮溝6、6，可讓使用者對於漏 出不安放心。根據該點，第2壓縮溝6、6，亦有朝向寬幅 方向X隔開某程度之間隔地形成之必要。 接著，根據第4圖A到第5圖C，說明關於被排泄於 生理用衛生棉1之表面的經血之流動動向。 第4圖A及第4圖B，爲說明被排泄於生理用衛生棉 e 1之表面的經血之流動動向之圖。第5圖A到第5圖C， 爲說明被過剩排泄於生理用衛生棉1之表面的經血之流動 動向之圖。 說明關於在生理用衛生棉1之表面排泄有一般量之經 血L時之經血L的流動動向。 首先，如第4圖A所示，於生理用衛生棉1之表面使 經血L被排泄似地滴下。被排泄於表面薄片2之表面的經 血L，滲透過表面薄片2被吸收體4吸收。而，被吸收體 Φ 4吸收的經血L，會以朝向寬幅方向X外側擴開之方式移 動。 其次，如第4圖B所示，於吸收體4之內部朝向寬幅 方向X外側移動之經血L，係被第1壓縮溝5、5之高密 度部5 a吸附。而，被吸附之經血L ’以朝向鄰接於高密 度部5a的中密度部5b擴散之方式移動。如此’可抑制經 血L漏出於寬幅方向X外側。再者’位於第1壓縮溝5、 5之高密度部5 a的面積率P ’係以比形成於第2壓縮溝ό 、6的高密度積層部6a之面積率Q還高之方式構成’換 -17- 200938171 言之，第1壓縮溝5、5之密度以比第2壓縮溝6、6之密 度還高之方式構成’故被第1壓縮溝5、5吸附的經血被 第2壓縮溝6、6吸附之可能性較少。 在此，於第4圖B之狀態，從表面薄片2側觀察生理 用衛生棉1時，由被吸附有經血L的第1壓縮溝5、5之 高密度部5a被表面薄片2覆蓋，故可從外部隱蔽經血L 之紅色。200938171 IX. Description of the Invention [Technical Field of the Invention] The present invention relates to an absorbent article such as a sanitary napkin. [Prior Art] Conventionally, in the sanitary napkin as an absorbent article, in order to suppress the leakage of the discharged menstrual blood or the like, there is proposed a sanitary napkin in which a concave leakage preventing groove is formed on the surface sheet G side. . For example, it is proposed to have a liquid-permeable surface sheet and a liquid-impermeable back sheet, and an absorber sandwiched between the two sheets, and on the upper two sides of the region where the chip is located, having a chip facing surface A sanitary napkin that compresses one of the grooves in the longitudinal direction (for example, refer to Patent Document 1). The sanitary napkin having such a compressed groove is obtained by compressing at a high pressure by using a desired molding die in a state where the liquid permeable surface sheet is combined with the absorbed body weight. By having such a compressed groove, it is possible to suppress leakage of menstrual blood flowing on the surface. Further, by providing such a compressed groove, it is possible to suppress permeation of the menstrual blood which has permeated the surface and the sheet is absorbed by the chip toward the outside in the width direction. That is, when the menstrual blood that has been absorbed by the chip by the surface sheet is moved outward in the broad direction, the menstrual blood is adsorbed by the high-density portion of the compressed portion of the compression groove of the chip, and the direction toward the wide direction can be suppressed. The outer side leaks out. Further, since these compression grooves exhibit the function as the starting point of the bending, the sanitary napkin can be improved in the adhesion toward the excretion portion. That is, the compression groove is used as the starting point of the bending, and the -4-200938171 region sandwiched by the compression groove is deformed toward the side of the discharge portion and is closely attached to the discharge portion. [Patent Document] [Patent No. 3 053 56 1] [Technical Problem to be Solved by the Invention] However, the compression groove of the sanitary napkin of Patent Document 1 is formed by compressing both the φ surface sheet and the chip. Therefore, the menstrual blood adsorbed by the high-density portion formed in the compression groove of the chip moves toward the surface sheet side. Therefore, the red interlaced surface sheet of the menstrual blood is visually over-recognized, so that the user feels uncomfortable. Further, the compressed groove of the sanitary napkin of Patent Document 1 has a character function of a region which is likely to be absorbed by the blood as viewed from the surface, and therefore must be formed so as to be spaced apart from each other by a predetermined width. This is a case where the compression strips are narrower in width, which makes the user feel uncomfortable with the amount of absorption. Because of this, the width of the area deformed so as to protrude toward the side of the excretion portion may be inconsistent with the width of the excretory portion. It is an object of the present invention to provide a high-density region formed in an absorbent body which is excellent in concealability of a menstrual blood absorbed by an absorbent body with respect to an inner side in a width direction formed on at least a groove portion of a surface sheet. Absorbent items. [Means for Solving the Problem] (1) A surface sheet having at least a portion thereof, a liquid-permeable surface sheet, -5-200938171, and a liquid-impermeable back sheet, and being disposed between the surface sheet and the back sheet The longitudinal absorbent article of the liquid-repellent absorbent body is characterized in that it is formed on the absorbent body so as to extend in the longitudinal direction of the absorbent article, and is formed continuously or intermittently. One of the high-density portions in the longitudinal direction is formed in the high-density region; and is formed in at least one of the surface sheets extending toward the longitudinal direction, and the high-density region sandwiches the absorbent article The wide direction is formed by dividing the center line of the ridge, and the grooved region is formed on the outer side of the high-density region in the wide direction. (2) The absorbent article according to the above aspect, wherein the high-density region is formed in a groove shape which is recessed on the surface sheet side of the absorber, and the high-density portion is intermittent. The ground is formed at the bottom of the groove. (3) The absorbent article according to (2), wherein each of the grooved regions is formed by recessing the surface sheet and the absorber, and is intermittently at a bottom of each of the groove regions. The surface sheet and the high-density laminated portion formed by compressing the absorber are formed. (4) The absorbent article according to (3), wherein the interval between the high-density laminated portions formed in the groove direction in the longitudinal direction is higher than the height formed in the high-density region The interval between the density sections is also wide. [Embodiment] Hereinafter, a sanitary napkin 1 as an absorbent article according to an embodiment of the present invention will be described with reference to the drawings. -6 - 200938171 First, the structure of the sanitary napkin 1 will be described based on Figs. 1 to 3 . Fig. 1 is a plan view of a sanitary napkin 1 for physiological use. Fig. 2 is a X-X sectional view of the sanitary napkin 1 for physiological use. Fig. 3 is a plan view showing the absorbent body 4 constituting the sanitary napkin 1. As shown in Fig. 1, the sanitary napkin 1 as an absorbent article has a substantially vertical shape. The sanitary napkin 1 includes a liquid permeable surface sheet 2, a liquid-impermeable back sheet 3, and an absorber 4 disposed between the surface sheet 2 and the back sheet 3. Further, the sanitary napkin 1 includes a pair of first compression grooves 5 and 5 which are formed in the high-density region of the absorber 4, and a pair of groove regions formed in the surface sheet 2 and the absorber 4 The second compression grooves 6 and 6. The surface sheet 2 and the absorber 4 in which the first compression grooves 5 and 5 are formed are the second compression grooves 6 and 6 and the hot-melt adhesive which are formed in a state in which the surface sheet 2 is laminated on the absorber 4, and the like. Fit and fix. Further, the back sheet 3 and the absorber 4 are bonded and fixed by a hot melt adhesive or the like. The surface ® sheet 2 and the back sheet 3 are bonded by a hot melt adhesive and a heat seal. Further, in the sanitary napkin 1, the side flaps 10, 10 for fixing to the undergarment and the fixing portion (not shown) are formed. The fixing portion (not shown) is formed in the center of the back sheet 3 of the sanitary napkin 1. The sanitary napkin 1 is fixed to the undergarment by being fixed to the inner side of the crotch portion of the undergarment by the fixing portion. On the back side of the first side of the side flaps 1 〇 and 1 ,, there is an adhesive portion which is not shown. The sanitary napkin 1 can be attached to the undergarment by folding the side flaps 10, 10 to the side of the back sheet 3 and attaching the adhesive portion to the outer side of the undergarment. Next, each constituent element constituting the sanitary napkin 1 will be described. The surface sheet 2 is a nonwoven fabric made of a cellulose fiber such as enamel, a non-woven fabric formed of a synthetic fiber resin, or the like, and a non-woven fabric made of a synthetic resin fiber such as PE, PP or PET, and formed of the above-mentioned synthetic resin fiber. The airflow is not woven, etc. Further, the back sheet 3, the absorbent body 4, and the hot-melt adhesive can be used for general sanitary napkins. Here, in the present embodiment, the absorbent body 4 also includes a nonwoven fabric called a second sheet or a cushion sheet disposed between the surface sheet 2 and the absorbent body 4. As shown in Figs. 1 to 3, the first compression grooves 5 and 5 which are high-density regions are formed in the absorber 4. The first compression grooves 5 and 5 are formed on the absorber 4 so as to be separated from each other in the width direction X with the center line CL interposed therebetween. Further, the first compression grooves 5 and 5 are formed to extend in the longitudinal direction Y. The first compression grooves 5 and 5 are formed in a groove shape which is recessed on the side of the surface sheet 2 of the absorber 4. Φ Each of the first compression grooves 5 and 5 is configured to include a plurality of high-density portions 5a that are intermittently formed in the longitudinal direction Y. Specifically, each of the first compression grooves 5 and 5 is provided with a plurality of high-density portions 5a which are intermittently formed along the respective bottom portions of the first compression grooves 5 and 5. Specifically, as shown in FIG. 1 and FIG. 3, each of the first compression grooves 5 and 5 is provided with a high-density portion 5a and a middle portion which are alternately formed at the bottoms of the first compression grooves 5 and 5, respectively. The density portion 5b is configured. Each of the first compression grooves 5 and 5 is formed by passing the absorber 4 through a convex portion formed in a shape corresponding to the shape of the first compression grooves 5 and 5 - 200938171 embossing roller and plane Formed between the rollers. Specifically, the absorbing body 4 is subjected to a pressing (compression) process between the convex portion formed by intermittently forming the projections on the surfaces of the first compression grooves 5 and 5 and the flat roller. form. Here, as means for compressing (pressing) the absorbent body 4, not only the combination of the embossing and the flat roll as described above, but also a plate shape of one or both of them may be used, or it may not be formed. The surface on the side of the convex portion forms a concave portion corresponding to the convex portion. 〇 The high-density portion 5a is a portion that is strongly compressed (compressed), and the medium-density portion 5b is a portion that is weakly compressed. The high-density portion 5a is a portion formed by strongly pressing a portion of the absorber 4 at the protruding portion of the convex portion, and is a portion that is made of a material having a high density of the material constituting the absorber 4. . Specifically, the density is increased by using the density of the region of the absorber 4 adjacent to the first compression grooves 5 and 5 (the region not compressed). The high-density portion 5a is formed to have a higher density than the medium-density portion 5b. The medium-density portion 5b is a portion which is weakly compressed as described above, and is a region in which the density of the material constituting the absorber 4 is higher than the adjacent region. The medium-density portion 5b corresponds to a portion that is positioned between the protrusions of the protrusions of the convex portion, and is strongly compressed by the adjacent high-density portion 5a and the high-density portion 5a, and the result is compressed. Weak area. The medium density portion 5b is formed so that the density of the material constituting the absorber 4 is higher than the adjacent region, and the first compression grooves 5 and 5 are formed so as to be lower than the density of the high density portion 5a. The line CL is formed in line symmetry -9-200938171. Further, the first compression grooves 5 and 5 are formed to be separated from each other by 20 mm to 50 mm in the width direction X, and are preferably formed by separating only 25 mm to 45 mm. When the separation pitch of the first compression grooves 5 and 5 in the width direction X is smaller than 20 mm, the density of the central portion 20 formed in the central region between the first compression grooves 5 and 5 is increased to have a rigidity ratio. The above is still high. In other words, when it is deformed so as to protrude toward the side of the excretion portion, there is a case where the deformation cannot be smoothly performed. In addition, in the state of being mounted, the central portion 20 may be harder than necessary and the mounting degree may be lowered. On the other hand, when the separation pitch of the first compression grooves 5 and 5 in the width direction X is larger than 50 mm, the width of the central portion 20 is much wider than the width of the discharge portion, so that the discharge portion cannot be obtained. Appropriate fit. It is a wide dimension of the length in the width direction X of the first compression grooves 5, 5, and is 〇 5 mm to 10 mm, preferably 1 mm to 5 mm. When the width of the first compression grooves 5, 5 is smaller than 0.5 mm, the absorbent body 4 is broken along the first compression grooves 5, 5 at the time of manufacture or use. Further, there is a case where the menstrual blood cannot be sufficiently adsorbed, and the menstrual blood cannot be prevented from leaking out of the wide direction X. Further, there is a case where sufficient rigidity is not obtained, and therefore, when the central portion 20 is deformed so as to protrude toward the excretion portion side, the function as the starting point of the bending cannot be performed. On the other hand, when the width of the first compression grooves 5 and 5 is larger than 1 〇mm, the rigidity of the first compression grooves 5 and 5 is too high, so that the adhesion or the use at the time of attachment may be used. In the case where the feeling is lowered, the rigidity of the first compression grooves 5 and 5 is 300 mg Wnch to 3000 mg/inch, preferably 500 mg/inch to 2500 mg/inch. In the case of the 1st - 10th, 2009, when the stiffness of the compression grooves 5, 5 is smaller than 300mgWnch, it is not possible to make the two thighs from the two sides of the width direction X of the sanitary napkin 1 when it is attached. The force applied to the inner side in the wide direction X by the portion is transmitted to the absorber 4, so that the central portion 20 cannot be deformed to protrude toward the drain portion side. On the other hand, when the rigidity of the first compression grooves 5 and 5 is larger than 3000 mg/inCh, the rigidity is too high, and the adhesion or the feeling of use at the time of attachment is lowered. Here, the rigidity of the first compression grooves 5, 5© is measured in accordance with JIS L-1096 8.20.1 A (Glyfy). The interval between the high-density portions 5a constituting the first compression grooves 5 and 5 in the longitudinal direction Y is 0.5 mm to 10 mm, preferably 2 mm to 5 mm. When the interval between the high-density portions 5a in the longitudinal direction Y is smaller than 〇5 mm, the rigidity of the first compression grooves 5 and 5 becomes higher, and the adhesion or the feeling of use at the time of attachment may be lowered. On the other hand, when the interval between the high-density portions 5 a in the longitudinal direction Y is larger than 1 〇 mm, the height portions 5a ❹ are too wide apart from each other, and the menstrual blood described later cannot be suppressed from the wide direction X outside. The situation of leakage. Each of the first compression grooves 5 and 5 functions as a leakage preventing portion that suppresses the permeation of the menstrual sheet 2 by the absorber 4 and leaks out of the outer side in the wide direction X. Specifically, the first compression grooves 5 and 5 mainly absorb the menstrual blood absorbed by the central portion 20 of the absorber 4 through the plurality of high-density portions 5a' constituting the first compression grooves 5 and 5 and The menstrual blood 'moving toward the outer side in the wide direction X' is suppressed from leaking out of the wide direction X outside. -11 - 200938171 In addition, each of the first compression grooves 5 and 5 functions as a bending starting point that deforms the center portion 20 so as to protrude toward the discharge portion side. Specifically, the first compression groove 5, 5, the center portion 20 of the region in which the length in the width direction X is shorter than the two compression grooves 6 and 6 to be described later (the width is narrow) is projected to the drain portion. The respective first compression grooves 5 and 5 are formed only in the absorber 4. In other words, unlike the second compression grooves 6 and 6 to be described later, the respective first compression grooves 5 and 5 are formed not in the state of being laminated on the surface sheet 2 or the back sheet 3. In other words, in the region corresponding to (covering) the surface sheets 2 in the first compression grooves 5 and 5, the high-density portions whose density is increased or the groove regions corresponding to the second compression grooves 6 and 6 to be described later are not formed. Further, the respective high-density portions 5a constituting the first compression grooves 5 and 5 are separated from the surface sheet 2. Further, the respective first compression grooves 5 and 5 are not directly joined to the surface sheet 2. Specifically, the high-density portion 5a is not pressed against the surface sheet 2, and the sanitary napkin 1 is formed on the outer side in the width direction of the first compression grooves 5 and 5, respectively. 2 compression grooves 6, 6. Each of the second compression grooves 6 and 6 as the groove region is formed as a groove-like region in which the surface sheet 2 and the absorber 4 are recessed. Each of the second compression grooves 6 and 6 is formed by a compression (squeezing) process in which the surface sheet 2 and the absorber 4 are laminated. The second compression grooves 6 and 6 are formed as a part of the hyacinoid-shaped annular leakage preventing groove 60 as a whole, and are formed on the outer side of the first compression grooves 5 and 5 in the width direction X. . Here, the second compression grooves 6 and 6 are viewed from the upper surface of the surface sheet 2, -12 to 200938171, and are compression grooves formed on the innermost side of the wide direction χ. Each of the second compression grooves 6 and 6 is formed of a plurality of high-density laminated portions 6a which are formed to extend discontinuously in the longitudinal direction Y. Specifically, each of the second compression grooves 6 and 6 is provided with a plurality of high-density laminated portions 6a which are intermittently formed along the respective bottoms of the second compression grooves 6 and 6. Specifically, as shown in Fig. 1, each of the second compression grooves 6 and 6 is provided with a 〇 high-density laminated portion 6a and a medium-density layer which are alternately formed at the bottoms of the second compression grooves 6 and 6 The part 6b is constructed. The second compression grooves 6 and 6 can be formed in the same manner as the first compression grooves 5 and 5 described above. In other words, the second compression grooves 6 and 6 can be formed to correspond to the second compression grooves 6 and 6 by laminating the surface sheet 2 and the absorber 4 in which the first compression grooves 5 and 5 are formed. The embossing roller of the convex portion and the flat roller are formed by compression (pressing). Here, the means for forming the second compression grooves 6 and 6 is not limited to the combination of the embossing cylinder and the flat roller, and is the same as described above. Similarly to the high-density portion 5a of the first compression grooves 5 and 5, the high-density laminated portion 6a is a portion that is strongly compressed (compressed), and the medium-density laminated portion 6b is a portion that is weakly compressed. The high-density laminated portion 6a is a portion formed by strongly pressing (compressing) one of the surface sheet 2 and the absorbent body 4, and the density of the material constituting the surface sheet 2 is increased, and the material constituting the absorbent body 4 is also formed. The part of the density becomes higher. The high-density laminated portion 6a is formed such that the density of each of the surface sheet 2 and the absorber 4 is higher than that of the medium-density layer portion 6b. The medium-density laminated portion 6b is a portion which is weakly compressed as described above, and is formed by a method in which the density of the material constituting the surface sheet 2 and the absorber 4 is higher than the adjacent regions by -13 to 200938171. . The medium-density laminated portion 6b is strongly compressed by the adjacent high-density laminated portion 6a and the high-density laminated portion 6a, and as a result, is a region where compression is weak. The medium-density laminated portion 6b is formed such that the density of the material constituting the surface sheet 2 and the absorber 4 is higher than that of the adjacent region, and the respective densities are lower than the high-density portion 5a. 〇 The second compression grooves 6 and 6 are formed in line symmetry with respect to the center line CL. Further, the second compression grooves 6 and 6 are formed outside the first compression grooves 5 and 5 in the width direction X. Specifically, the second compression grooves 6 and 6 are separated from the first compression grooves 5 and 5 toward the outer side in the width direction X by 1 · 5 mm to 20 mm, preferably only 3 mm to Formed at 10 mm. When the respective distances of the second compression grooves 6 and 6 and the first compression grooves 5 and 5 are smaller than 1.5 mm, the menstrual blood adsorbed by the first compression grooves 5 and 5 is subjected to the second compression grooves 6 and 6 The case where the high-density laminated portion 6a is adsorbed. In other words, Φ is absorbed by the high-density layered portion 6a of the high-density portion 5a of the first compression grooves 5 and 5 which are covered by the surface sheet 2 and is concealed, and the red blood of the menstrual blood is exposed. External situation. Further, it is difficult to deform the central portion 20, which will be described later, in an upright manner. On the other hand, when the respective distances of the second compression grooves 6 and 6 and the first compression grooves 5 and 5 are larger than 20 mm, the width of the central portion 20 may be narrowed. At this time, the menstrual blood that has permeated through the surface sheet 2 cannot be completely absorbed, and there is a case where the menstrual blood leaks beyond the first compression grooves 5 and 5 and leaks outward in the width direction X. At this time, the menstrual blood moves toward the high-density laminated portion 6a, and the red of the menstrual blood is also exposed to the outside -14-200938171. It is a width dimension of the length in the width direction X of the second compression grooves 6, 6 and is 〇5 mm to 10 mm, preferably 1 mm to 5 mm. In the case where the width of the second compression grooves 6, 6 is smaller than 〇5 mm, the surface sheet 2 and the absorber 4 are broken along the second compression grooves 6, 6 at the time of manufacture or use. There is also a case where the menstrual blood flowing along the surface of the surface sheet 2 cannot be sufficiently captured. Further, it is not possible to sufficiently adsorb the menstrual blood, and there is a case where it is impossible to suppress the menstrual blood leakage to the outside of the wide direction X. On the other hand, when the width of the second compression grooves 6 and 6 is larger than l〇mm, the rigidity of the second compression grooves 6 and 6 is too high, so that the adhesion at the time of attachment or the feeling of use is lowered. In this case, the interval between the high-density laminated portions 6a located in the second compression grooves 6 and 6 is wider than the interval between the high-density portions 5a of the first compression grooves 5 and 5. In the high-density portion 5a of the first compression grooves 5 and 5, since it is necessary to move the inside of the absorber 4 toward the outside in the width direction X, the menstrual blood does not leak out of the outside and is adsorbed in a short time, so that there is mutual Necessary formation of near ground. On the other hand, in order to prevent the flow of menstrual blood flowing along the surface of the surface sheet 2, the second compression grooves 6 and 6 are formed in a concave shape, and the high-density laminated portion 6a can be adsorbed in a specific time. It is sufficient that the menstrual blood flowing into the concave portion is formed. Specifically, the interval between the longitudinal direction Y of the high-density laminated portion 6a is preferably 2 mm to 20 mm' and is preferably 5 mm to 15 mm. When the interval between the longitudinal direction Y of the high-density laminated portion 6a is smaller than 2 mm, the rigidity of the second compression grooves 6 and 6 is not increased, and the rigidity of the second compression grooves 6 and 6 cannot be deformed while being attached to the body.情-15- 200938171 Shape. On the other hand, when the interval between the longitudinal direction γ of the high-density laminated portion 6a is larger than 20 mm, the menstrual blood that has been trapped in the second compression grooves 6 and 6 along the surface of the surface sheet 2 cannot be adsorbed. At this time, before the menstrual blood that has fallen into the second compression grooves 6, 6 is moved to the absorbent body 4, there is a case where the surface of the surface sheet 2 leaks outside the width direction X of the sanitary napkin 1. Further, the area ratio P @ of the high-density portion 5 a of the first compression grooves 5 and 5 and the area ratio Q of the high-density laminated portion 6 a of the second compression grooves 6 and 6 are the area ratio P > the area ratio Q . When the area ratio Q of the high-density laminated portion 6a located in the second compression grooves 6 and 6 is high, the density of the entire second compression grooves 6 and 6 increases, so that it is sucked by the first compression grooves 5 and 5. The menstrual blood is easily inhaled by the second compression grooves 6, 6. Therefore, there is a case where the red color of menstrual blood is exposed to the outside. Each of the second compression grooves 6 and 6 functions as a leakage preventing groove in which the menstrual blood flowing along the surface of the surface sheet 2 is prevented from leaking outward in the width direction X. Specifically, the second compression grooves 6 and 6 are trapped by collecting the menstrual blood flowing along the surface of the surface sheet 2 and forming the high-density layered portion 6a positioned at the bottom of the concave portion. The collected menstrual blood is adsorbed toward the side of the absorber 4, and the menstrual blood is prevented from leaking out of the wide direction X. In addition, each of the second compression grooves 6 and 6 functions as a bending start point that deforms the region 30 that is sandwiched between the second compression grooves 6 and 6 so as to protrude toward the discharge portion side. Specifically, in order to cooperate with the first compression grooves 5 and 5, the center portion 20 is deformed so as to be in contact with the drain portion. Further, each of the second compression grooves 6 and 6 functions as a mark that can be visually recognized from the outer portion -16-200938171 and serves as a mark indicating a region in which menstrual blood can be absorbed. That is, the second compression grooves 6, 6 allow the user to feel uneasy about leaking. From this point, the second compression grooves 6 and 6 are also required to be formed at a certain interval in the width direction X. Next, the flow of menstrual blood discharged to the surface of the sanitary napkin 1 will be described based on Figs. 4A to 5C. Fig. 4A and Fig. 4B are diagrams for explaining the flow of menstrual blood excreted on the surface of the sanitary napkin e1. Fig. 5 to Fig. 5C are diagrams for explaining the flow of menstrual blood which is excessively excreted on the surface of the sanitary napkin 1. The flow of menstrual blood L when a normal amount of menstrual blood L is excreted on the surface of the sanitary napkin 1 will be described. First, as shown in Fig. 4A, the menstrual blood L is dripped as it is on the surface of the sanitary napkin 1. The menstrual blood L excreted on the surface of the surface sheet 2 is permeated through the surface sheet 2 and absorbed by the absorber 4. On the other hand, the menstrual blood L absorbed by the absorbent body Φ 4 is moved to expand outward in the width direction X. Then, as shown in Fig. 4B, the menstrual blood L that has moved toward the outside of the wide direction X inside the absorbent body 4 is adsorbed by the high density portion 5a of the first compression grooves 5 and 5. On the other hand, the adsorbed menstrual blood L' moves toward the intermediate density portion 5b adjacent to the high-density portion 5a. Thus, the menstrual blood L can be prevented from leaking out of the wide direction X. Further, the area ratio P' of the high-density portion 5a of the first compression grooves 5 and 5 is configured to be higher than the area ratio Q of the high-density laminated portion 6a formed in the second compression grooves 、 and 6. -17-200938171 In other words, the density of the first compression grooves 5 and 5 is higher than the density of the second compression grooves 6 and 6, so that the menstrual blood adsorbed by the first compression grooves 5 and 5 is compressed by the second. The grooves 6, 6 are less likely to adsorb. When the sanitary napkin 1 is viewed from the side sheet 2 side in the state of FIG. 4B, the high-density portion 5a of the first compression grooves 5 and 5 to which the menstrual blood L is adsorbed is covered with the surface sheet 2, so that the surface sheet 2 is covered. The red color of menstrual blood L can be concealed from the outside.
φ 說明關於在生理用衛生棉1之表面排泄過量的經血L 時之經血L之流動動向。 首先，如第5圖A所示，與上述同樣地，於生理用衛 生棉1之表面使經血L被排泄似地滴下。被排泄於表面薄 片2之表面的經血L，滲透過表面薄片2被吸收體4吸收 。而，被吸收體4吸收的經血L，會以朝向寬幅方向X外 側擴開之方式移動。 接著，如第5圖B所示，於吸收體4之內部朝向寬幅 ❹ 方向X外側移動之經血L，會被第1壓縮溝5、5之高密 度部5a吸附。而，被吸附之經血L’會以朝向鄰接於高 密度部5 a的中密度部5 b擴散之方式移動。如此’可抑制 經血L漏出於寬幅方向X外側。又，如第5圖B所示， 過量之經血L被排泄於表面薄片2時’經血L會沿著表面 薄片2之表面以朝向寬幅方向X外側流動之方式移動。 再者，如第5圖C所示，沿著表面薄片2之表面朝向 寬幅方向X外側移動之經血L，會流入第2壓縮溝6、6 而被捕集。流入第2壓縮溝6、6的經血L，首先，會被 -18- 200938171 高密度積層部6a吸附，並且朝向中密度積層部6b擴散地 移動。而，被高密度積層部6a吸附的經血L’會被移動 於吸收體4側。如此，可抑制經血漏出於寬幅方向X外側 〇 接著，根據第6圖A到第6圖C，說明關於裝著時之 生理用衛生棉1的變形狀態。第6圖A到第6圖C’爲說 明裝著時之生理用衛生棉1的變形狀態之圖。 φ 首先，如第6圖A所示，裝著前之生理用衛生棉 爲於厚度方向Z呈扁平狀。第6圖A所示之生理用衛生棉 1，爲藉由上述之固定部及被翻折之側翼安裝於無圖示之 內褲。 其次，如第6圖B所示，藉由把無圖示之內褲上提而 將生理用衛生棉1裝著。藉由如此裝著生理用衛生棉 藉由兩腳大腿部，對於生理用衛生棉1之寬幅方向X兩側 施加有朝向寬幅方向X內側的力F、F。藉由承受該力F、 G F，生理用衛生棉1，會以其寬幅方向X之長度變短之方 式變形。 具體上，作爲吸收體4之中央區域的中央部20，其寬 幅方向X中央以朝向位於厚度方向Z之無圖示的排泄部側 (第6圖B之上方側）突出之方式變形。再者，中央部 20，係以形成於該中央部20之寬幅方向X兩側的第1壓 縮溝5、5作爲折彎起點朝向排泄部側突出地變形。亦即 ，比第2壓縮溝6、6彼此間之區域30的寬幅更窄且接近 於排泄部之寬幅的中央部20，以擋接於排泄部之方式，且 -19- 200938171 ，對應排泄部之形狀地變形。 接著，如第6圖C所示，在從生理用衛生棉 方向X兩側再施加有力F、F之場合，區域30會 縮溝6、6作爲折彎起點，以朝向位於厚度方向 部側突出之方式變形。此時，藉由第1壓縮溝5 壓縮溝6、6之各別發揮其作爲折彎起點的功能 圖C所示，第1壓縮溝5、5及與2壓縮溝6、6 φ 區域31、31會以支撐該中央部20之方式配置於 的下側。藉此，中央部2 0，會更緊貼地擋接於排 由中央部20如此緊貼地擋接於排泄部，從排泄 來的經血，會順利地被生理用衛生棉1吸收。 根據本實施形態，被吸收體4吸收的經血會 片2覆蓋，故可從外部隱蔽被吸收體4吸收的經 ，可抑制從外部視覺上辨認經血之紅色所引起之: 又，根據本實施形態，可使寬幅比第2壓翁 Φ 窄之中央部20擋接於排泄部地變形。藉此’可 對於生理用衛生棉1之緊貼性提昇。又，藉此’ 生棉1，可順利地吸收從排泄部排泄出來的經血c 又，根據本實施形態，比第1壓縮溝5、5 幅方向X更外側之第2壓縮溝6、6，會發揮其 溝的功能，同時在視覺上可從外部辨認，故可通 其係以較寬之範圍吸收經血。藉此，可抑制使用 出感到不安。 又，根據本實施形態，由於位於第2壓縮_ 1之寬幅 以第2壓 Z的排泄 、5及第2 ，如第6 間之細長 中央部20 泄部。藉 部排泄出 被表面薄 血。藉此 不快感。 旨溝6、6 使排泄部 生理用衛 I 形成於寬 作爲防漏 知使用者 者對於漏 6、6之 -20- 200938171 高密度積層部6a彼此之間隔較寬，故可降低生理用衛生 棉1之長邊方向Y的折彎剛性之。藉此’於裝著狀態’可 使生理用衛生棉1沿著身體之形狀柔軟地變形。藉此’可 提升裝著時之合貼性等。 以上，說明了關於本形態之理想實施形態，本發明並 不被限定於上述之實施形態，得以各種形態實施。於本實 施形態，第1壓縮溝5、5，其高密度部5a爲斷續性地形 0 成，不過並不限定於此，高密度部5a亦可連續性地形成 〇 又，於本實施形態，第1壓縮溝5、5及第2壓縮溝6 、6之各別爲由一對所形成，不過並不限定於此，各別亦 可由3條以上形成。 又，於本實施形態，位於第2壓縮溝6、6之高密度 積層部6a，可爲四角形、圓形、心形等之任意形狀。 又，於本實施形態，第2壓縮溝6、6，爲沿著第1壓 〇 縮溝5、5地形成，並且防漏溝60整體形成爲葫蘆狀，不 過並不限定於此，亦可整體作成橢圓形，兩側於長邊方向 Y具波浪之形狀等之任意形狀。 又，於本實施形態，第2壓縮溝6、6，係使表面薄片 2及吸收體4凹陷而形成，不過並不限定於此，亦可僅使 表面薄片2凹陷地形成。 又，於本實施形態，位於第〗壓縮溝5、5之高密度 部5a爲以等間隔地形成，不過並不限定於此。如第7圖 所示，高密度部5 a，亦可在以第1間隔形成複數個之後， -21 - 200938171 再以比第1間隔還寬的第2間隔來形成。亦即，高密度部 5a ’亦可規則地隔開第1間隔及第2間隔斷續性地形成。 此時，於第1間隔之區域形成有中密度部5 b，於第2間隔 之區域形成有中低密度部5c。該中低密度部5c，爲其構 成吸收體4的材料之密度比鄰接之區域還高，構成吸收體 4的材料之密度比中密度部5b還低的區域。 φ [發明之效果] 根據本發明，可提供一種藉由將形成於吸收體的高密 度區域，形成於：相對於形成於至少表面薄片的凹溝部之 寬幅方向內側，對於被吸收體吸收的經血具優異之隱蔽性 的吸收性物品。 【圖式簡單說明】 第1圖是生理用衛生棉1之平面圖。 Φ 第2圖是生理用衛生棉1之X-X斷面圖。 第3圖是構成生理用衛生棉1之吸收體的平面圖。 第4圖A是說明被排泄於生理用衛生棉1之表面的經 血之流動動向之圖。 第4圖B是說明被排泄於生理用衛生棉1之表面的經 血之流動動向之圖。 第5圖A是說明被過剩排泄於生理用衛生棉1之表面 的經血之流動動向之圖。 第5圖B是說明被過剩排泄於生理用衛生棉1之表面 -22- 200938171 的經血之流動動向之圖。 第5圖C是說明被過剩排泄於生理用衛生棉1之表面 @經血之流動動向之圖。 第6圖A是說明裝著時之生理用衛生棉1的變形狀態 之圖。 第6圖B是說明裝著時之生理用衛生棉1的變形狀態 之圖。 第6圖C是說明裝著時之生理用衛生棉1的變形狀態 之圖。 第7圖是其爲另一實施形態之生理用衛生棉1A的平 面圖。 【主要元件符號說明】 1 :生理用衛生棉 2 :表面薄片φ indicates the flow direction of menstrual blood L when excessive menstrual blood L is excreted on the surface of the sanitary napkin 1. First, as shown in Fig. 5, the menstrual blood L is dripped off on the surface of the sanitary napkin 1 in the same manner as described above. The menstrual blood L excreted on the surface of the surface sheet 2 is permeated through the surface sheet 2 and absorbed by the absorber 4. On the other hand, the menstrual blood L absorbed by the absorbent body 4 is moved to expand outward in the wide direction X. Then, as shown in Fig. 5B, the menstrual blood L that has moved toward the outside of the wide ❹ direction X inside the absorbent body 4 is adsorbed by the high density portion 5a of the first compression grooves 5 and 5. On the other hand, the adsorbed menstrual blood L' moves toward the medium-density portion 5b adjacent to the high-density portion 5a. Thus, the menstrual blood L can be prevented from leaking out of the wide direction X. Further, as shown in Fig. 5B, when excessive menstrual blood L is excreted on the surface sheet 2, the menstrual blood L moves along the surface of the surface sheet 2 so as to flow toward the outer side in the wide direction X. Further, as shown in Fig. 5C, the menstrual blood L that has moved toward the outer side in the width direction X along the surface of the surface sheet 2 flows into the second compression grooves 6, 6 and is trapped. The menstrual blood L that has flowed into the second compression grooves 6 and 6 is first adsorbed by the high-density laminated portion 6a of -18-200938171, and is diffusedly moved toward the medium-density laminated portion 6b. On the other hand, the menstrual blood L' adsorbed by the high-density laminated portion 6a is moved to the side of the absorbent body 4. In this way, it is possible to suppress the menstrual blood from leaking out of the wide direction X. Next, the state of deformation of the sanitary napkin 1 at the time of attachment will be described based on Fig. 6 to Fig. 6C. Fig. 6 to Fig. 6C' are views showing a state of deformation of the sanitary napkin 1 when it is attached. φ First, as shown in Fig. 6A, the sanitary napkin before the loading is flat in the thickness direction Z. The sanitary napkin 1 shown in Fig. 6A is attached to a panty (not shown) by the above-mentioned fixing portion and the folded side flap. Next, as shown in Fig. 6B, the sanitary napkin 1 is attached by lifting the underwear (not shown). By attaching the sanitary napkin to the thighs of the two legs, the forces F and F toward the inner side in the width direction X are applied to both sides of the width direction X of the sanitary napkin 1. By receiving the forces F and G F , the sanitary napkin 1 is deformed in such a manner that the length of the width direction X becomes shorter. Specifically, the center portion 20 of the central portion of the absorbent body 4 is deformed so as to protrude toward the side of the drain portion (the upper side of Fig. 6B) which is not shown in the thickness direction Z. Further, the central portion 20 is formed such that the first compression grooves 5 and 5 formed on both sides in the width direction X of the central portion 20 are deformed toward the discharge portion side as a bending starting point. That is, the width of the region 30 between the second compression grooves 6 and 6 is narrower and closer to the central portion 20 of the wide portion of the excretion portion, so as to be in contact with the excretion portion, and -19-200938171, corresponding The shape of the excretory portion is deformed. Next, as shown in Fig. 6C, when the forces F and F are applied from both sides of the sanitary napkin X, the region 30 shrinks the grooves 6, 6 as the starting point of the bending, and protrudes toward the side in the thickness direction. The way it is deformed. At this time, as shown in the function map C which is the starting point of the bending of the first compression groove 5, the first compression grooves 5 and 5 and the 2 compression grooves 6, 6 φ region 31, 31 is disposed on the lower side so as to support the central portion 20. As a result, the central portion 20 is more closely engaged with the row of the central portion 20 so as to be in close contact with the excretory portion, and the menstrual blood discharged therefrom is smoothly absorbed by the sanitary napkin 1. According to the present embodiment, the menstrual blood collection sheet 2 absorbed by the absorbent body 4 is covered, so that the absorption of the absorbed body 4 can be concealed from the outside, and the redness of the menstrual blood can be visually recognized from the outside. The central portion 20 having a wider width than the second pressing member Φ can be deformed by being in contact with the drain portion. Thereby, the adhesion to the sanitary napkin 1 can be improved. Further, the raw cotton 1 can smoothly absorb the menstrual blood c excreted from the excretory portion, and according to the present embodiment, the second compression grooves 6 and 6 which are outside the first compression groove 5 and the fifth direction X, It will exert its function as a ditch, and at the same time it can be visually recognized from the outside, so it can absorb menstrual blood through a wide range. Thereby, it is possible to suppress the use and feel uneasy. Further, according to the present embodiment, the width of the second compression _ 1 is the discharge of the second pressure Z, and the second and second portions of the second central portion 20 are vented. The excretion is thinned by the surface. This is not a pleasure. The grooves 6 and 6 are formed so that the physiological part of the excretory portion is formed as a leak-proof user. For the user of the leakage 6 and 6-20-200938171, the high-density laminated portion 6a is spaced apart from each other, so that the sanitary napkin can be lowered. The bending of the longitudinal direction Y of 1 is rigid. Thereby, the sanitary napkin 1 can be softly deformed along the shape of the body in the "attached state". By this, it is possible to improve the fit and the like at the time of loading. The preferred embodiments of the present invention have been described above, and the present invention is not limited to the above-described embodiments and can be implemented in various forms. In the present embodiment, the high-density portion 5a of the first compression grooves 5 and 5 is a discontinuous topography. However, the present invention is not limited thereto, and the high-density portion 5a may be formed continuously. The first compression grooves 5 and 5 and the second compression grooves 6 and 6 are each formed of a pair. However, the present invention is not limited thereto, and may be formed of three or more. Further, in the present embodiment, the high-density laminated portion 6a located in the second reduction grooves 6 and 6 may have any shape such as a square shape, a circular shape, or a heart shape. Further, in the present embodiment, the second compression grooves 6 and 6 are formed along the first pressure reduction grooves 5 and 5, and the leakage prevention groove 60 is formed in a gourd shape as a whole, but is not limited thereto. The whole is formed into an elliptical shape, and both sides have an arbitrary shape such as a shape of a wave in the longitudinal direction Y. Further, in the present embodiment, the second compression grooves 6 and 6 are formed by recessing the surface sheet 2 and the absorber 4, but the present invention is not limited thereto, and only the surface sheet 2 may be formed concavely. Further, in the present embodiment, the high-density portions 5a located in the first compression grooves 5 and 5 are formed at equal intervals, but are not limited thereto. As shown in Fig. 7, the high-density portion 5a may be formed by forming a plurality of spaces at the first interval, and -21 - 200938171, at a second interval wider than the first interval. In other words, the high-density portion 5a' may be formed intermittently with the first interval and the second interval regularly. At this time, the medium density portion 5b is formed in the region of the first interval, and the medium-low density portion 5c is formed in the region of the second interval. The medium-low density portion 5c has a higher density of the material constituting the absorber 4 than the adjacent region, and the material constituting the absorber 4 has a lower density than the medium-density portion 5b. φ [Effects of the Invention] According to the present invention, it is possible to provide a high-density region formed in an absorber, which is formed on the inner side in the width direction of the groove portion formed in at least the surface sheet, and is absorbed by the absorber A bloody, excellent, concealed absorbent article. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view of a sanitary napkin 1 for physiological use. Φ Fig. 2 is a X-X cross-sectional view of the sanitary napkin 1 . Fig. 3 is a plan view showing an absorbent body constituting the sanitary napkin 1. Fig. 4A is a view for explaining the flow of menstrual blood excreted on the surface of the sanitary napkin 1. Fig. 4B is a view for explaining the flow of menstrual blood excreted on the surface of the sanitary napkin 1. Fig. 5A is a view for explaining the flow of menstrual blood which is excessively excreted on the surface of the sanitary napkin 1. Fig. 5B is a view showing the flow of menstrual blood which is excessively excreted on the surface -22-200938171 of the sanitary napkin 1. Fig. 5C is a view for explaining the flow tendency of the menstrual blood by excessive excretion on the surface of the sanitary napkin 1. Fig. 6 is a view for explaining a deformed state of the sanitary napkin 1 at the time of attachment. Fig. 6B is a view for explaining a deformed state of the sanitary napkin 1 at the time of attachment. Fig. 6C is a view for explaining a deformed state of the sanitary napkin 1 at the time of attachment. Fig. 7 is a plan view showing a sanitary napkin 1A of another embodiment. [Main component symbol description] 1 : Physiological sanitary napkin 2 : Surface thin film
3 :背面薄片 4 :吸收體 5 :第1壓縮溝 5 a ·筒密度部 5 c :中密度部 6 :第2壓縮溝 6a :高密度積層部 6b :中密度積層部 :中心線 -23-3: back sheet 4 : absorber 5 : first compression groove 5 a · tube density portion 5 c : medium density portion 6 : second compression groove 6 a : high density laminated portion 6b : medium density laminated portion : center line -23-