TW200529796A - Stretchable absorbent compositions having high permeability - Google Patents
Stretchable absorbent compositions having high permeability Download PDFInfo
- Publication number
- TW200529796A TW200529796A TW093137270A TW93137270A TW200529796A TW 200529796 A TW200529796 A TW 200529796A TW 093137270 A TW093137270 A TW 093137270A TW 93137270 A TW93137270 A TW 93137270A TW 200529796 A TW200529796 A TW 200529796A
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- Prior art keywords
- absorbent
- composite
- sample
- weight
- permeability
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- 235000013343 vitamin Nutrition 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/531—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/15203—Properties of the article, e.g. stiffness or absorbency
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F2013/530481—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F2013/530481—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
- A61F2013/530708—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the absorbency properties
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F2013/530481—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials
- A61F2013/530788—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having superabsorbent materials, i.e. highly absorbent polymer gel materials characterized by the gel layer permeability
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
- A61F13/534—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad
- A61F13/537—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer
- A61F2013/53791—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having an inhomogeneous composition through the thickness of the pad characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer being resilient or elastic
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
200529796 九、發明說明: 【發明所屬之技術領域】 結合各式吸收物件的吸收複合物,舉例來說包括:個人護理產品、 健康/醫療產品及家庭/工業產品。一般來說,傳統吸收複合物是沒有伸張 能力。 ^ x 將彈性材料結合在吸收物件的各式結構元件中,達到更好的貼身設 計、更佳的舒適性以及增強的維護效果。舉例來說,在美國專利編號J 4,834,738號中揭示-種具有延伸外部覆蓋部分及_____ 吸收物件,由kidpikowski等人提出,以及在專利合作條約的公開編號w〇 02/34184,以Vukos等人的名義提出。由於彈性材料本質上不具有吸收性, 因此不易將額外的伸張性加人吸收複合物,而且將彈性體材料加入吸收複 合物中,通常會抑制該吸收複合物的液體處理特性。更明確地,由於顆粒 間總體積_顯減少錢彈性體機的低可濕性導致不㈣液體分佈,因 而彈性材料巾_對地大阻城回縮力使賴流人的速率/ 。 【先前技術】 ★ 已開發料具有伸祕的魏複合物㈣,如揭示於錢專利編號 第6,362,389號,由McDowall等人所提出。然而,現存具有伸張性的吸收 複合物並未有效地達到液體處理能力的最佳範圍。在該·複合物還有機 會將該液體全體吸收之前,低液體攝入速率或低液體滲透性引起高速、高 壓液體滲人,不是在頂端的部分積水,就是㈣讀複合物_邊流出。 而且,在缺少合適液體分配能力的情況下,#需要的時候,液體無法充分 地針對該吸收複合物的未飽和區域滲入。 現階段需要或預期相關吸收複合物,其令複合物具有伸張性以及具 有足夠的複口滲透性。更進一步需要或預期相關吸收複合物,包括一可伸 張的吸收複合物,附含最_液體處理能力。健進 造方法㈣製造具«佳_處魏力的可伸張吸收複合物。城期 ALICE-D\PATENT\PK-001 -0904 5 200529796 【發明内容】 在°及收複合物中發現高伸張性及滲透性之結合,同時在吸收物件 情供舒適性^及液體處理能力。因此,本發明針對具有將近15達爾西 、arcy (10平方公分)或更高的複合物滲透性以及將近5〇% (或更多) 的複合物伸張性之吸收複合物。 _本發_另—具體實施例是針對包含60重f百分率的高吸收體, 同時具有15達爾西(或更高)的複合滲透性及鄕(或更多)的複 張性之吸收複合物。 —在本發明中仍有另一具體實施例,針對具有1〇達爾西(或更高) 的複合滲透性及10% (或更多)的複合伸張性之吸收複合物。 為了實現本發明的吸收複合物,選擇合適的高吸收性材料、彈性體 材料及可選獅紙漿、娜,並以最佳地_結合。更明雜,該吸收複合 物可以包含5%到95%重量百分率,或爾到95%重量百分率,或者介 於3(U到85%重量百分率之間的高吸收性材料以及5%到现重量百分 率’或8%到18%重量百分率之間的彈性體材料以及〇%到乃%重量百分 率,或者10%到70%重量百分率之間的紙漿纖維。 该吸收複合物的複合滲透性是從屬關係,至少部分地存在該高吸收 性材料的特性中。使用在該吸收複合物巾的高吸收性材料應該具有足夠的 吸收能力及膠強度,使龍吸收複合彻的可伸絲質關其結構,特別 是在承受壓力的情況下。因此,該超吸收性材料適度地具有一膠床滲透 性,在0.3psi壓力之下具有30達爾西或更大。一般來說,在該吸收複合物 中越少量的南吸收性材料及/或彈性材料,針對該高吸收性材料在〇.3psi壓 力之下需求較低的膠床滲透性。在某些具體實施例中,該高吸收性材料可 為預先過篩的300-600微米粒子形式。此外,在各式具體實施例中,該高 吸收性材料可以利用聚乙烯胺溶液加以表面處理。 適當的彈性材料範例包括彈性聚合物成分,其中可包括豨烴共聚 物、聚乙烯彈性體、聚丙烯彈性體、聚酯彈性體、乙烯_丙烯_二烯三元共 聚物、苯乙烯-異戊二烯_苯乙烯、苯乙烯_丁二烯_苯乙烯、苯乙烯_乙烯/丁 烯-苯乙烯、苯乙稀·乙烯/丙烯-苯乙烯、聚胺基甲酸酯、異戊二烯、交聯聚 6 ALICE-D\PATENT\PK-001 -0904 200529796 丁二烯或這些聚合材料的任一結合。 適合使用在各式吸收物件之該可伸張吸收複合物包括(但不限制) 個人護理用品、健康/醫療吸收物件、家庭/工業吸收物品以及其相似物。 尤其,在該吸收物件中該吸收複合物可以位於該外部覆蓋及一體側襯裡之 間,同時該外部覆蓋及/或體側襯裡可以為彈性體的或至少具有伸張性。 其中種氣ieδ亥可伸張吸收複合物的方法包括,透過至少一個溶喷 鑄模從該模型中擠出一彈性體材料、纖維化多數的紙漿纖維,並且使該高 吸收性材料與該纖維化的紙漿纖維及該射出成形的彈性體材料混合。當在 一輸送機上轉移高吸收性材料、纖維化紙漿纖維及射出成形的彈性材料之 混合物時,一似水的表面活化劑混合物可以噴灑在高吸收性材料、纖維化 紙漿纖維及射出成形的彈性材料之混合物上。 、 考慮以上所述,本發明的特徵及優點為提供具有伸張性及足夠複合 渗透性的雜複合物,収製造歧收複合包含此讀複合物之吸收 物件的方法。 【實施方式】 在此制書的上下文中,下述的每-健語或措辭將包括該下述 (各式)含義。 驛篮的CElastomeric),,或“有彈性的(elastic),,交替地使 -材料或複合物,即在變形後當該變形力量移除時,_般能夠重新 雜之材料或複合物。尤其,如使用在此,有彈性的或彈性體 達-料的特性,根據一偏向力的應用,允許該材料具有伸張性 /度’其至少大於本身放鬆狀態未偏向長度的50%,並且當 ‘4=鬆時’其將使該材料恢復至少本身伸長的.一储設範 體材料的定義可以為—射的㈣樣本,其可延伸達 許多有Lm㈣達1,5英奴舰鬆,料恢復少於L3射的長度。 鬆時可以延伸超過其放鬆長度的爾,同時在該延伸力量放 、心的24些材料實質上將能恢復至其原始的放鬆長度。 數要素之雙層重ΪΓ。)#以單數形式使用時,可以具有一單一要素或多 ALICE-D\PATENT\PK-001 -0904 7 200529796 液體無法透過的(Liquid-impermeable) ”當使用來描述一層或 疊層時,表示在原本的使用條件下,該液體如水或體液無法透過該層或疊 層通過,通常在液體接觸點垂直該層或疊層平面的方向。 液體可滲透的(Liquid-permeable),,表示一層或疊層不是液體 無法透過的。 炼噴纖維(Meltblownfiber) ”表示藉由模型噴出一熔融的熱塑 性材料形成各式纖維’透過許多細小的轉模毛細管,通常為圓形或矩形, 做為溶融線或細絲,進入集中的高速氣體(例如空氣)流中,期使該炫融 的熱塑性材料的細絲變細,用以降低自身的直徑,為一微纖直徑(蠢〇黯 dmmeter)。其後,由高速氣鱗送雜钱維銳置在—錢面上,形成 -隨意地分舰喷纖維的纖維網。舉例來說,如此—程序揭示在美國專利 編號第3,849,241號中由Butin提出。溶噴纖維為連續或不連續的微細纖 維’-般等於或小於6丹尼爾(denier),當放置在—收集表面上時,通常 為自身黏合,而且與其他非熔融_構件黏合在一起。 “非梭織的(N_oven)”及“非梭織纖維網(n〇nw〇venweb)” =關具有個職維或細絲結構㈣之原料或纖維網,其中纖維或細絲為中 間插入,但並非以同-方式如以一針織方式。該名詞“纖維(fiber),,及 細絲(mament) ”在此可交替地運用。非梭織織物或纖維網可由許多方 纖唯^例來*兒’溶喷方法、紡黏方法、氣流舖置以及黏合梳理 ===12織織物的基重一般以每平方碼材料多少盘司或 ;主由MJ&l A gSm)表不’且該纖維的直徑一般以微米表示。(附 δ主由0sy轉換成gsm時,將0Sy乘以33 91)。 例來飞舰聚合il(PGlymers) ”包括(但不限制)均質聚合物,例如,舉 。成鬼、接枝、任意及㈣侧的共聚物三聚物料,以及其混人 =更。再者’除了其他特殊限制,該名詞“聚合物⑽卿s) ”應勺 位及IL排對稱。 ^構1包括,但不限制同位、對 紡黏纖維(Spunbond fiber),,志-ϊ 士/-的熱塑性材料噴出形成如細絲,由許多具有:或=:== ALICE-D\PATENT\PK-001 -0904 200529796 細&具有忒射出成形細絲的直徑,之後快速地如所知的消減,舉例來說, 在美國專利編絲4,34G,563餘Appe丨等人提纽美目專利編號第 ^692=18戒由Dorsehner等人提出、美國專利編號第3,8G2,817號由Matsuki 等人提出、美國專利編號第3,338,992號及第3,341,394號由Kinney提出、 美國專利編麟3,5〇2,763號由Hartmann提&、美國專機號第3,取538 號由柯⑽11提出以及美國專利編號第3,542,615號由Dobo等人提出,將 其全體結合於此,做為參考,在隸意義上與本文_致。當紡黏纖維放置 在收集表面上時,紡黏纖維經過驟冷且通常不會發黏。一般紡黏纖維是 連續的’且-般具有大於G·3的平均丹尼爾,更明確地,介於0.6到10之 間。 可伸張的(Stretchable)”表示一材料可以被拉伸,而不會分裂, 至J在"Γ方向上最少延伸30% (達其原始(未拉伸)長度的至少130% ), 至少適當地5〇% (達其原始(未拉伸)長度的至少130%)或至少1〇〇%。 該用扣包括彈性材料其同時具有可延伸及可收縮的特性,和可延伸但沒有 明顯地縮珊料-樣。—假設範例其能滿足_延伸材料此處的定義可以為 一個1英吋的材料樣本,其可延長至少3〇%,達至少13〇英吋。 南吸收性(Superabsorbent) ”表示一吸水膨脹、水不溶解的有 機或無機材料’在最有利的條件下,於包含G·9重量百分率氣化鈉的水溶 液中Sb夠吸收至少本身重量的10倍,或至少本身重量的15倍,或至少本 身重量的25倍。該高吸收性材料可以為天然的、合成的及改質天然聚合 物及材料。另外,該高吸收性材料可以為無機材料,例如矽膠或有機化合 物如交聯聚合物。該高做性材料可以具有微生物可分解或非微生物分解 的性質。該高吸收性材料可以包括粒子、纖維、麻屑、薄片、薄層、泡沫 及其相似物。一材料為“有吸收力的(abs〇rbent),,時,其在這些情況下, 至少吸收其本身重量的五倍該水溶液。 有吸收力的物件(Absorbent article) ”包括,但不限制,個人護 理吸收物件、健康/醫療吸收物件及家庭/工業吸收物件。 個人護理吸收物件(personal care abs〇rbent article),,包括(但 不限制)例如尿布、尿布褲、嬰兒擦拭品、學習褲、吸收襯褲、孩童照護 ALICE-D\PATENT\PK-001 -0904 9 200529796 ? 4冰衣及其他拋棄式外衣;女性護則品包括衛生棉、擦拭品、月經 ^ ·、月經褲、短褲的襯裡、短褲的護套、唇_品,止血塞及止血塞塗藥 為,成人護理用品包括擦拭品、塾子、容器、失禁用品及尿壺 =牛: 圍兜;運動及休閒產品及其相似物。 構件, 健康/醫療吸收物件(Health/medical abs〇rbent ,,包括各 式專,及/肖費型的健康·護理產品包括(但不關)應用於熱或冷療法的產 品、醫療長袍(例如防護及/或外科長袍)、外科用無塵套、便帽;;手套、 面膜、、崩帶又傷包裹用品、擦拭品、遮蓋物、容器、過遽器、抛棄式衣 服及床墊、醫療吸收外衣、護理床墊及其相似物。 豕庭/工業吸收物件(Household/industrial absorbent articles ),,包 括架设及包裝供應品、用以清潔及消毒的產品、擦拭品、遮蓋物、過渡、 毛巾、拋棄式裁切薄紙、浴紙、面紙、非梭織滾筒產品、家居設備產品包 括枕頭、塾子、椅墊、面罩及身體保養產品例如使用於清潔或治療該皮膚、 實驗衣、連身服飾、垃圾袋、污垢清除劑、外用組合物、洗衣、洗務防污 /油墨吸收劑、洗淨凝聚劑、親脂液體分離劑及其相似物。 這些用語在此說明文的其餘部分,將以額外的術語界定。 較佳具體實施例的描述 根據本發明,提供具有高滲透性的可伸張吸收複合物,運用於各式 物件中。同樣地提供製造這些可伸張吸收複合物的方法。 當吸收複合物存在時,可伸張性及液體滲透性兩個特質是成反比地 存在的。在吸收複合物中無法同時提供足夠程度的兩種特質。本發明的吸 收複合物設計具有足夠的可伸張性及足夠的滲透性,透過細心挑選的高吸 收性材料、彈性體材料及紙漿纖維,以調和的比例結合而得。 最後,該高吸收性複合物具有30%或更多的複合延伸性,或5〇% 或更多,或100%或更多。任何可伸張材料的延伸性同時為材料/結構方面 的功能及測試條件。因此,在此表示用以參照之可延伸性的程度,以下段 測試方法所提供的延伸性測試程序為基礎進行測定。 該吸收複合物的該複合可伸張性,使該吸收複合物特別地適合使用 以結合其他可伸張結構構件。在該吸收複合物中,一吸收複合物的可伸張 ALICE-D\PATENT\PK-001 -0904 10 200529796 性取決縛性體材料的_,如彈性體材料鱗其他包含在槪 中之材料的百分比。-般來說,t該彈性體材料的比 : 合物的可伸張性即會上升。相反地,包括越少量的彈性體材料,該 合物的可㈣性越低。彈性體材料在可伸張性的的效果圖式在下述範例 中。吸收複合物結構同樣地會影響該吸收複合物的可伸張性。舉例來%, 當固定數量的彈性體材料在—吸收複合物中,—吸收複合物具有更多 的-致混合(或分散)介於彈性體材料及其他構件之間,相較於具有較少 -致混合的材料將可產生更高的可伸張性。其他結構的因素包括纖維尺寸 及彈性體材料的長度,多數_合形成以及吸收複合物的黏合強度、基重 及密度、存在的瑕疲及其相似情況。 該吸收複合物適當地包括介於5% @ 25%重量百分比之間的彈性 體材料或介於8%到18%重量百分比之間的彈性體材料。該彈性體材料可 包括浠烴共聚物、聚乙烯彈性體、聚丙烯彈性體、聚酯彈性體、聚異戊二 烯、父聯聚丁二烯、雙團、三團、四團或其他多段式熱塑性彈性及/或柔韌 共聚物,例如嵌段共聚物(blockcopolymer)包括氫化丁二烯-異戊二烯丁二 烯嵌段式共聚物,立體嵌段式共聚物;接枝共聚物包括乙稀_丙烯_二烯三 元共聚物或乙烯-丙烯-二烯單體(EPDM)、乙烯-醋酸乙烯(EVA)及乙烯 -丙烯酸甲酯(EMA);苯乙烯嵌段式共聚物包括雙團及三團共聚物例如苯 乙烯-異戊二烯-苯乙烯(SIS)、苯乙烯·丁二烯-苯乙烯(SBS)、苯乙烯-異 戊二烯-丁二烯-苯乙烯(SIBS)、苯乙烯-乙烯/丁烯-苯乙烯(SEBS)或苯 乙稀-乙稀/丙稀-本乙稀(SEPS),其可從德州休士頓的Kraton公司獲得, 以该KRATON®商標為名的彈性體樹脂,或來自Dexco,Exxon-Mobil的 部分,以該VECTOR㊣商標為名的SIS及SBS聚合物;熱塑性彈性體與機 能的醯化彈性體-熱塑性混合物混合;熱塑性聚醚酯彈性體;離子性熱塑性 彈性體;熱塑性彈性聚亞胺S旨包括這些來自E.I. Du Pont de Nemours公司, 以該LYCRA®商標為名的聚亞胺酯,以及由Noveon公司購得ESTANE® ; 熱塑性聚醯胺,包括聚醚崁段醯胺由Ato化學公司購得,以PEBAX®商標 命名之聚醚崁段醯胺;熱塑性彈性聚酯,包括這些由Ε·Ι· Du Pont de Nemours公司購得,以HYTREL⑧商標命名之具酯,以及由印第安那州艾 11 ALICE-D\PATENT\PK-001 -0904 200529796 凡斯維爾的DSM工程歸購得ARNITEL⑧,以及由Dow化學公司購得具 有J於0.89 a克/立方公分雄、度的單點或金稀催化聚烯,以affinity^商 標命名之物及其化合物。 如使用於此,-三嵌段共聚物具有—ABA結構,其中該A表示數 個類型A的重複單元而b代表數個類型β的重複單元。如上所述,苯乙婦 嵌段共聚物的部分範例為SBS、SIS、SIBS、SEBS及SEps。在這些共聚 物中,該A炭段為聚苯乙婦,而該B炭段為一彈性構件。一般來說,這些 三炭段共雜所具有的分子量,可以贱千魏十萬,且鮮乙烯的含量 以該三鎌聚合物4量為基_ 5%到75%之比例。二紐共聚物與該三 炭段共聚物相似,但其為- AB結構。合適的二紐共聚物包括苯乙婦_ 異戊二烯之二紐物,其所具有的分子量為該三統共㈣的—半,其中 具有相似的A崁段物及B崁段物之比例。 複合滲透性為一吸收複合物液體處理能力的其中一項量測,並可以 利用下述詳細的測試方法測量。本發明的吸收複合物具有_ 1〇達爾西(ι〇·8 平方公分)或更大的複合滲透性,或15達爾西或更大,或20達爾西或更 大。 該吸收複合物的複合滲透性主要依據該吸收複合物中之高吸收材 料的類型,即包含在該吸收複合物巾該其他材料相對該高吸收材料的百分 比。高吸收材料可依據組成成份(如粒子大小)具有各式變化。舉例來說, 一種達成較高複合滲透性之有效方法,在〇.3psi澎潤壓之下挑選一具有相 對高GBP值之適當組成物。另一有效方法是改變該彈性體材料,用以產生 更小的纖維直徑,例如在該複合物形成期間藉由增加該鑄模上的主要空 氣’下文中將具有更詳細地描述。舉例來說,在一個具體實施例中,該高 吸收材料將包含預先過篩的300-600微米粒子。尚有另一有效方式, 該吸收複合物内該可伸張基質之抗張強度,例如在該吸收複合物中縮減彈 性體材料的數量。 / 更明確地’該尚吸收材料應該具有足夠的吸收能力及凝膠強度,克 服該吸收複合物中可伸張基質之阻力,並開啟該可伸張基質之結構,尤其 當該吸收複合物處於壓力下之時。在0.3psi壓力之下於此運用之膠床渗透 AUCE-D\PATENT\PK-001 -0904 12 200529796 性(GBP) ’用以評估該高吸收材料之要件。該吸收複合物之滲透性同時為 該GBP在〇.3psi壓力之下之機能以及在該吸收複合物中高吸收材料的百分 比。包含在本發明吸收複合物中之高吸收材料,在〇 3psi的壓力之下適當 具有30達爾西或更大,或35達爾西或更大。目前最常見的超吸收材料, 當其在包含0.9重量百分比之氯化鈉水溶液中吸收至少2〇倍自身重量的時 候,在0.3psi壓力之下具有一 GBP值為15達爾西或更低。包含在本發明 吸收複合物中之高吸收材料,適當地具有一 2〇克/克或更多的離心保留能 力(CRC),由下列詳述之CRC測試方法來測定。該吸收複合物適當地包 含5%至95%重量之間、或50%至95%重量之間、或30%至85%重量之 間的高吸收材料。 如下述範例所示,在0.3psi壓力之下,具有較高GBP值之高吸收 材料有益於改善複合滲透性。舉例來說,在一吸收複合物中包括75%重量 之兩及收材料,針對300-600微米的高吸收材料,在〇 3psi的壓力之下適 當地具有30達爾西或更大之GBP值。一般來說,在該吸收複合物中高吸 收材料的數量越少,該高吸收材料在〇.3psi壓力之下所需求的的GBp值越 低。 該高吸收材料可以包括,舉例來說,微粒狀物質、纖維、細絲、泡 洙狀物質、非離子高吸收物質及/或聚丙烯酸酯高吸收物質。該高吸收材料 可從天然、合成及改質天然聚合物及材料挑選。該高吸收材料可以為無機 材料,例如矽膠或無機化合物(例如交聯聚合物)。一般高吸收材料為交 聯聚合電解質。聚合電解質包括陽離子或陰離子聚合物。陰離子聚合物包 含之官能基如羧基、續酸鹽、硫酸鹽、亞硫酸鹽、磷酸鹽或其混合物。陰 離子聚合物的範例包括,但不限制,聚丙烯酸的鹽類或部分鹽類、聚丙醯 甲基丙烧績S复、聚乙烯醋酸、聚乙烯填g复、異丁烯_順丁烯二酸脫水共聚物、 羧甲基纖維素、藻朊酸、鹿角菜、天門冬氨酸及其共聚物或混合物。陽離 子聚合物包括之官能基如一級胺、次級胺及三級胺、亞胺、醯胺、四及胺 鹽或其混合物。陽離子聚合物的範例包括(但不限制)聚乙烯胺的鹽類或 精麵、二稀二甲基氫氧化銨、聚丙烯丙氨基三甲基氫氧化錄、聚氣基 丙醇二乙烯醚、聚丙烯胺、殼聚糖、聚二氨基己酸、多麩醯胺酸及其共聚 ALICE-D\PATENT\PK-001 -0904 13 200529796 物或混合物。商業上可購得高吸收材料的範例包括SXM9394、SXM9543 及FAVOR80 ’各自分別由美國北卡羅來納州格陵斯堡的Degussa Superabsorber及美國密西根州中部的Dow Chemical公司購得。這些及其 他高吸收材料包括商業上經過表面處理的高吸收粒子及微生物可分解的 高吸收粒子皆適合使用於該吸收複合物中。 一般經過表面處理的高吸收物質包括一吸收物質及一該吸收物質 經過表面處理的外部表面。在一個特殊的具體實施例中,該高吸收物質包 含一交聯聚合物其中含有75%重量百分比或更多的陰離子聚合物。該用語 “聚合物”如使用於此,表示不是單一聚合物,即為一聚合物的混合。該 用語陰離子聚合物如使用於此,表示一聚合物或聚合物的混合包括一 吕能基或官能基群中具有具有一電位,在一水溶液中於離子化作用時轉變 成陰極地帶電離子。在某些具體實施例中,該高吸收物質包含一交聯聚合 物包括85%重量百分比或更多的陰離子聚合物,或將近9〇%重量百分比 或更多的陰離子聚合物。在另一具體實施例中,該高吸收物質包括一交聯 聚合物其中包含75%重量百分比或更多的陽離子聚合物。該用語“陽離子 聚合物”如使用在此,表示一聚合物或各式聚合物的混合包含一官能基或 官能基群中具有一電位,在一水溶液終於離子化作用時轉變成陽極地帶電 離子。在某些具體實施例中,該高吸收物質包括一交聯聚合物,其中包含 85%重1百为比或更多的㈤離子聚合物,或9〇%重量百分比或更多的陽離 子聚合物。 该經過表面處理的鬲吸收物質之表面處理包括,至少一部分地,可 ,解於水巾非交聯聚合物具有—電位,㈣與該高吸收物,有相反的電 何’運用於該高吸收物質的全部或部分外部表面。舉例來說,其中該高吸 收物質包括-交聯聚合物,其通常為陰離子(例如包括,或更多重量百 刀比的陰離子聚合物),以便具有—電位,轉變成陰極地帶電離子,該表 面處理至少部分地包括-水雜非交卿合物包含—陽離子聚合物,其中 具有轉變祕極帶_子之。㈣_具體實施例,其中該高吸收物質 包括-父聯聚合物,通常即為陽離子(如包括紋多重量百分比的陽 離子聚合物),以便具有-電位,轉變賴極帶電離子,該表面處理至少 ALICE-D\PATENT\PK-001 -0904 14 200529796 部分地包括一水溶性的非交聯聚合物包含一陰離子聚合物,其中具有一轉 變成陰極帶電離子的電位。 ~ 在部分具體實施例中,該商業上可購得的高吸收材料(陰離子聚合 物)可以利用聚乙烯胺溶液或其他適當的溶液經由表面處理,增強在 壓力之下的a GBP值。-合適聚乙烯胺溶液中的_個範例可由新澤西州芒 特奥利夫的BASF公司講得以CATI〇FAST㊣pR81〇6 (25加%固體)為商 標為名之物。該聚乙職溶液可以溶解在細水巾,在其巾添加該高吸收 材料並且一起攪拌。在膨脹之後,乾燥該高吸收材料,例如以⑼它乾燥 15小時或更長的時間。該乾燥的高吸收材料可以研磨及透過一過濾器過 濾。該經過表面處理的高吸收材料適當地包括介於〇1%至1〇%重量百分 比的聚乙烯胺。 該吸收複合物可以包括〇%到75%之間,或1〇%到7〇%重量百分 比之間的紙m維。在某-具體實施例中,該吸收複合物可以包括5%到 4(U重量百分比之間的紙漿纖維。如下列範例2所述,在該吸收複合物中 紙維的麵及/或數量φ會影響該雜複合物的複合料性。舉例來 說,當該高吸收材料及該彈性材料為_固定量時以及高吸收材料/彈性材料 /紙梁纖賴比烟樣為-m紐,呈現不囉綱紙漿_將會影響該複 口滲透性。再者,一般來說該複合滲透性會藉由紙漿纖維所增加的百分比 而有所提升,尤其在同時增加彈性材料的百分比時。 , 雜漿纖維可包括(但不限制)化學紙聚,例如亞硫酸紙漿(有時 稱做牛皮紙),如同機械紙漿例如磨碎的木材,熱機械紙漿及半化學熱機 械紙聚。更明確地’該紙聚嫌為可以包括棉、典型的木質紙聚、醋酸纖維 素、嫘繁、熱機械木質紙漿、化學木質紙製、分割的化學木質紙聚、馬 利筋屬植麟及其混合物。可制落葉或針葉樹兩者所衍生的紙衆。另 外’錢_料包括如親水性材料例如微晶質纖維素、微_形成的纖 維素,或上述這些材料與木質紙漿纖維的結合。 亦可將一表面活化劑添加入該吸收複合物中,用以增加該吸收複合 物的可祕錢水性。合適的表面活化舰例在商業上可由德拉威州維明 頓的Uniqema購入,以AHC0VEL為註冊商標之物,以及由俄亥俄州辛辛 ALICE-D\PATENT\PK-001 -0904 15 200529796 那提的Cognis股份有限公司購得,以GLUCOPON220為註冊商標之物。 该吸收複合物可以形成在一共形成線(coform line)上。共形成過 程將分離聚合物及附加蒸氣結合成一單獨的沈積流,形成在非梭織纖維網 上。如此一過程的其中一個範例揭示於美國專利編號第4,1〇〇,324號由 Anderson專人提出,將其全體結合於本發明的文件中作為參考。另一有關 开> 成一吸收複合物之適當過程的範例揭示於美國專利編號第號第 5,350,624號由Georger等人提出,將其全體結合於本發明的文件中作為參 考。 ”、 一形成該吸收複合物(20)方法的其一範例描述於第一圖中。該裝 置的規模於此在第一圖中做為範例。具有不同規模及/或不同結構之裝置的 其他類型亦可用來形成該吸收複合物(2〇)。如第一圖所示,以小球為形 狀的彈性體材料(22)可透過_小_斗(24)送人兩個單螺桿擠麵 (26),其各自送入一旋轉幫浦(28)。該彈性體材料(22)可以為一多成 份彈性體混合,可由德克薩斯州休斯頓的&泣〇11公司購得,以 KRATO_G2755言主冊商標之物。兩邊的旋轉幫冑(28)將該彈性體材料 (22)送入一分離的熔噴模具〇〇)。各個熔喷模具(3〇)每英吋具有3〇 個孔洞(hpi)。該模具的角度可由水平的〇度到7〇度任替調整,而最合適 地設定在45度左右。該成形的高度可以為16英忖的最大高度,但此限制 會根據不同的裝置而有所改變。 一具有將近24英吋寬的滑槽(32)放置於該熔噴模具之間。該滑 ,(32^的深度或厚度皆可調整在〇·5英忖到125英忖或〇•乃英忖到α 英忖的範圍之間。一摘棉機(34)連結在該滑槽(32)的頂端。該摘棉機 (=)用以將該紙漿纖維(36)纖維化。限制該摘棉機(34)加工低強力 或分割(處理)_,其巾該摘棉機將條於該圖式之方法使用非常小範 圍的紙_類。對照—般錘磨機使賴子重複地撞擊該紙雜維,該摘棉 機(34)運用小黯狀物將該紙_維(36)撕開。適用於第一圖說明方 =紙觀維㈤包括硫酸鹽m _,為一短纖維、低強力的硬木紙 ,,由位於喬治亞洲Jesup的Ray〇nier股份有限公司購得。 在該滑槽的末端相對該摘棉機的位置為—高吸收材料的供料裝置 ALICE-D\PATENT\PK-001 -0904 16 200529796
〇8)。該供料裝置將高吸收材料⑽)倒入輸送管(Μ)的孔洞⑹ 中,接著送入-鼓風機(46) +。通過該鼓風機(46)後為一 4对直捏的 輸运& (48) 口P刀’其足以發揮一每秒鐘5〇〇英叹的完整發揮滿流,在其 中允許該高吸收材料(40)適於流動。該輸送管(48)從4英叶直徑變寬 成24英f寬〇·75英忖長的滑槽⑶),在其中該高吸收材料(4〇)與該紙 聚纖維(36)混合,同時該混合物直直地落下並且在另一傾斜將近必度 的側邊與雜性體材料(22)混合。該高吸收材料(4〇)、紙聚纖維(⑹ 及彈性體材料(⑵的混合物落在每秒移動M到%英叹的細線轉運帶(5〇) 上。然而,在觸及該細線轉運帶之前…儒吊桿⑼彌一水狀表面 活化劑的混合物,藉以使該最終吸收複合物⑼)變得可濕潤的。該表面 活化知十昆口物(54 )可以刀別由c〇gnis公司及㈣脱講得之GLUC〇p〇N 220 UP及AHCOVEL BaseN-62的1 ·· 3混合物。一個在下層的細線真空機 ⑼位於該轉運帶⑼)的下方,協助形成該吸收複合物(2〇)。 舰收複σ物(20)可結合任何吸收物件。此合適物件的範例包括 個人護理吸收物件,例如尿布、尿布褲、嬰兒擦拭品、學習褲、吸收内裤、 孩童護理褲游泳衣、衛生棉、擦拭品、月缝、轉雜、月經褲、緊身内 褲襯裡、短褲護套、陰唇_品、止血塞、衛生棉條、尿絲產品、泌尿 相關保護護套、布料構件、圍兜、雜、勒及賴產品;健康/醫療吸收 物件例如運用於冷或熱療法的產品,醫用長袍(亦即保護及/或外科袍)、 外科用無塵套、帽子、手套、面罩、解受傷敷用材料、擦拭品、毛毯、 容裔、過滤器、抛棄式衣服及床墊、醫療吸收衣物、襯墊;家庭/工業吸收 物件例如架⑧及包裝供給物用以清潔及消毒的擦拭品、遮蓋物、過滤器、 毛巾、拋棄式裁切薄紙、廁所紙、面紙、非梭織滾筒產品、居家舒適的商 =包減頭、墊子、錄、面罩及身體護理產品例如用於清潔或處理該皮 貫驗衣連身衣、垃圾袋、去污用品、局部、外用組合物、洗淨固體 /油墨吸收物、洗淨凝結劑、油液分離劑及其相似物。本發明的吸收複合物 可^早層結構或多層結構的方式顧,例如以雙層結構的形式,其中該吸 收複合物可以視為該上該較低層或兩層时。如範例之說明,於下述 中以尿布的觀點加以說明。 ALICE-D\PATENT\PK-〇〇 I -0904 17 200529796 尿布(12G)範例與該吸收複合物(2g)結合圖式於第二 布(12_,(132>該底賴-前區⑽)、 -配置料φ Γ連結知m (122)及該㈣區(124)的胯輕(126)、 面⑴Γϋ的接觸身體綱表面(128),以及相騎身體接觸表 觸φ(13()),其*配置料部表面與該穿用者的衣服接 =、=)22_與該前腰邊緣(13物,而該背部區⑽與該 属妨Β君二^布(120)-包括外部覆蓋物(140)、一體側襯裡(142)以一 外1覆讀(14G)連結還有—對側布4黏附該外部覆蓋物 及/或w亥體側概裡(142)。ij·此彳目!丨;^ y , irr\、 …“ $ 側布片(l6〇)可以包括貼紙、帶子、可撕 伽裝置,可藉由適當的方式(包括膠帶)固定該前區⑽ 及5亥彦部區(124)之間。 丘门^如圖目t於第二圖中的尿布(12G),該前區(122)及背部區⑽) 配部開口 〇5〇)及—對腿部開口 (152)的立體褲形配置。 用者:腰;"L的腰帶邊緣(138)及(139) ’當穿用時使其環繞該穿 =腰T並提供該腰部開口 (150),界定一腰部周圍大小。在該胯部 μ邊缘定該腿部開σ (152),位於該底部⑽的部分橫向相 Τ邊緣⑽。該前區⑽包括該尿布⑽的一部分,其當穿用 者的前面’而該背部區(124)包括該尿布⑽)的一部分, ===對於該穿用者的背部。該尿布⑽)的胯部區(126)涵蓋該 il L 份,其當穿用時介於該穿用著的腿部以及覆蓋該穿用 =:。該尿布⑽)的侧布片⑽)當跡 為了增強抑制任何由穿用者釋出之滲出物,該底部(132)可包括 =f過伸縮處理的牽制翼片(未顯示),配置該翼片提供-隔閡該身體 通㊉垂直配置於至少該尿布(120)的胯部區(i26),形成—密 封處緊用者的身體。有關該牽織片的適當結構及布置,通常在此 領域的這些技能巾絲所周知的技術,㈣麻於美目專利編號第 ALICE-D\PATENT\PK-001 -0904 18 200529796 將其全體結合 4,704,116號,西元1987年11月3曰頒佈,由Enl〇e提出 於此文件中,做為參考。 為了更進-步增強該身體渗出物的牽制,該尿布(12G)可以包括 腰部彈性部分057)及/或腿部彈性部分(158),如此領域中已知的^ 技能。該腰部彈性部分(157)可轉動地沿著該相對的腰部邊緣⑽)^ (139)連結該外部物蓋物及/或體_裡〇42),且可部分延伸或整體延 伸超過該腰部邊緣。麵響性部分⑽)可躺地沿著_對的侧邊 緣(136),縱向地連結該外部覆蓋物(14〇)及或該體侧概裡⑽),並 置於該尿布(120)的胯部區(126)。 耕部覆蓋物(140)實質上可包括一液體無法通過的材料,又合 適-彈性絲少能伸張或在部分_可能甚至為非伸張材f。該外部覆& 物可為液體無法通珊料之單層,或可包括—錢疊層結構,其中至少該 層的其中之一為液體無法通過之材料。舉例來說,該外部覆蓋物(14〇) 可包括一液體滲透的外部層及液體無法通過之内層,藉由疊層黏合(未顯 不)適當地結合在-起。適當的疊層黏合,其可連續地或間歇地運用如泡 沫、水霧、平行旋渦或該相似物,可由美國威斯康辛州沃瓦陀沙的Findiey
Adhesives 公司、或從美國新澤西州 Bridgewater 的 National Starch and chemical Company購得。該液體滲透外層可為任何合適的材料,例如提供 一種常見類似織物的結構。如此材料的其一範例為2〇gsm(公克/平方公尺) 紡黏非梭__。料部層亦可錢些材料製成,其巾賴滲透的體側 槪裡(142)即由此製造。雖然該外部層不需要為液體滲透的材質,但預 期能提供給穿用者一相對類似織物之材質。 σ適的外部覆蓋物材料的另一範例為一 聚丙晞紡枯物,即 在k方向上具有60%的頸縮,且在縱方向上具有6〇%的縐絲,將每平方 公尺3公克(gSm)的Findley 2525a苯乙烯_異戊二烯-苯乙烯以2〇% Ti〇2 黏口 8 gsm的PEBAX®2533薄膜。該外部層可適當地被橫向地及/或縱向 地拉伸至少50% (至少該外部覆蓋物(14〇)的最初(未拉伸)寬度及/或 長度)。 仍有另一合適的外部覆蓋物材料之範例,為一透氣性彈性薄膜/非 19 ALICE-D\PATENT\PK-001 -0904 200529796 梭織疊層,描述於美國專利編號第5,883,028號,由Μ_η等人提出,將 其王n於此文件巾,做為參考。具有兩種伸張性及伸縮力的材料範 例,揭示於美國專利編號第5,_62號,由Μ〇_提出以及美國專利編 號第5,114,781號,由M_n提出,同樣地將其兩者結合於此文件中,做 為參考。這兩種專利所描述的複合彈性材料至少能夠拉伸在兩個方向上。 該材料至少具有-個彈性薄層及至少一個頸縮材料,或兩面式的頸縮材 料至乂在一處位置與该彈性薄層連結,以一非線性的配置排歹4,如此該 頸縮、或兩面式頸縮及纖維網至少聚集在這些位置的兩處之間。 該外部覆蓋物(140)的内部層可為液體及氣體不可通過,或液體 及氣體可通稿者。軸亦可烟其他具有與親無法滲透之材料, 但該内部層可由-薄彈性薄層製成。該内部層或該液體不可滲透的外部覆 蓋物⑽)為單-層時可防止其餘材料魏物品,例如床單或布料,如 該穿用者及照護者。-合刺液體不可滲透薄層使祕為_顏不可渗透 之内部層或單層液體不可滲透的外部覆蓋物(14〇),為一 _公羞的聚乙 =薄層,商業上可由美國維吉尼亞州紐波特紐司的脑㈣心㈣㈣購 '假心亥外。[5覆蓋物(14〇)為一材料的單層,其可被壓紋及/或去光處 kt、更似布料的外觀。如上所述,該液體不可滲透的材料可禁止蒸汽 從該拋棄式吸收物件_部逃離,同雜止液體由該外部覆蓋物(14〇) 通過。-合適的“可透氣,,㈣由多微孔聚合物薄層或非梭織纖維組成, 其已經塗上和目反經過處理,增加―職的液體不可滲透程度。一合適的 多孔薄層為-ΡΜΡ·1騎材料,商#上可由日本東京的讀㈤τ〇_
Chemicals公司購得或一 χκα難聚烯烴薄層,商業上可由明尼蘇達州 明尼阿波利斯的3Μ公司購得。 圖式該液體滲透的體側襯裡(142),為_越過該外部覆蓋物(14〇) 及吸收複合物(2〇)之物,但不需要與該外部覆蓋物⑽)的尺寸相同。 該體側襯裡(M2)具有柔順的觸感且不刺激該穿用者的皮膚,同時可以 為—能伸張或彈性的材質。再者’該體側概裡(142)相較於該吸收複合 物(20)可以具有較少的親水性,呈現一相對乾燥表面至該穿用者,且允 許液體輕易地穿透其厚度。 AUCE-D\PATENT\PK-001 -0904 20 200529796 該體側襯裡(142)可由纖_材料的各種樣式製造,例如合成纖 維(舉例來說,聚醋或聚丙烯纖維)、天然纖、維(舉例來說,木質或棉纖 維)、天然或合成纖維的結合、多孔泡珠、網狀泡沐、有孔塑膠薄膜,或 該相似物。各式梭織品及非梭織纖維可運用於該體側襯裡〇42)。舉例來 說,該體側襯裡(142)可以由聚驗纖維的时或紡__組成。該 體側襯裡(142)亦可由天然及/或合成纖維,或—頸縮伸_減祕物所 組成的黏合梳理纖維網。該體側襯裡(142)實質上可由疏水材料及親水 材料組成,可任意地以-表面活化麟理,或減加工處理添加—預期程 度的可濕性及親水性。 該吸收複合物可以放置於或位於該外部覆蓋物(刚)及該體側襯 裡(M2)之間,可賴任何合適的方法將其連結在_起,例如在此領域 中已知的黏合劑。第三圖·該尿布⑽)具有結合其中之該吸收複合 物(20)〇 該底部(I32)亦可結合其崎料,其主要地設制以接收、暫時 地儲存及/或輸驗體沿著該具有該吸倾合物的麵表面,如預期,使該 吸收複合物(2G )的整體吸收能力達到最大。一種合適材料稱為間歇層(未 顯示)同B寺包括一每平方公尺具有50到12〇公克基重的材料 ,以及包含 一 60% 3丹尼_型號T_256雙成份纖維(包含一聚酯芯/聚乙烯㈤及4〇 % 6丹尼爾型號Τ-295聚醋纖維的同質混合之透氣梳理黏合纖維網,兩者 在商業上皆可由細北卡羅來酬索爾斯伯_ KQsa公㈣得。一合適 間歇層的另-範例可包括_材料由6丹尼爾聚對苯二曱酸乙二軸(ρΕτ) 及6丹尼爾複合黏結纖維製成,具有5〇至12〇供^的基重。 该尿布(120)的各式構件可以運用各種合適的黏接方法將其完整 地組合在-起,例如黏合劑、超音波及齡合或其結合。 如此處所述’本發明的吸收複合物包括仔細挑選的高吸收材料、 彈f生體材料級任意地紙漿纖維,以特定的比例呈現整體,達到具有鄕或 更多複合伸張性以及15朝西(或更多)的複合滲透性之吸收複合物。 本發明的另-吸收複合物包括6G重量百分比(歧多)的吸收劑、彈性 體材料以及任意地紙_維,達到具有鄕或更多複合伸張性以及15達 21 ALICE-D\PATENT\PK-001 -0904 200529796 爾西(或更多)的複合滲透性。仍有本發明的另一吸收複合物包括高吸收 材料、彈性體材料以及任意地紙漿具有屬或更多複合伸張 性以及1G達爾西(歧多)的複合滲透性。此外,她於傳統包含高吸 收物的吸收複合物,該吸收複合物具有改良的高吸收牽制。本發明的吸收 複合物提供更佳的合雜、更好的舒舰及她_紐收複合物,以各 式吸收物件提供改良的液體處理特性。 -般來說,-吸收複合物的伸雜主要是取決_吸收複合物中 彈性體材_數量。彈性·料的含量較高,該魏複合物的伸張性即越 高。換句話說,當棉毛纖維的數量增加時,該伸張性則明顯地縮減。部分 地渗透性是根_高吸收觀的GBP值,即高吸收材該吸收複合物中 的數量一樣。 如上所述’結構因子«彡響—吸收複合物的伸張立即滲透性,例 如纖維尺寸及雜體獅的長度、齡職的數量及結合強度、吸收複合 物的基重及密度、瑕敲其她航。时或祕織物)溶融 紡絲技術啦雜騎料的_尺找長度。财—做複合物的基重及 密度兩項結構,不會因為纖維紡絲技術而有所變動。針對—單層複合物, 本發明合適的吸收複合物基重範圍,可從每平方公尺卿公克到公 克’或每平方公尺細公克到_公克。為了達到更高的總基重可使用多 層複合物。本發明吸收複合物的密度範圍,可由每立方公分公克到 0.5公克’或從每立方公分αι公克到Q 3公克。如需求更高的密度,可適 用於以壓實處理。 測試方法 【複合伸張性測試】 為了測定-材料的伸張性,選定三種預定的拉伸比例:郷、5〇 ^、屬。每個材料最先測試3〇%,假使該材料通過該观的測試,接 著測試50%,之後假使該材料同時通過郷及·的測試,則最後以卿 心以似。針對每個階段㈣張性測試,測試三鋪例,為了將該樣本 視為具有各別&度的伸張因此三種都必須通過。每個樣本僅測試一次,即 使該樣本並沒有損壞。 22 ALICE-D\P ΑΤΕΝΤΛΡΚ-00 卜〇9〇4 200529796 經過3次張力及釋放的預定比例拉伸,量測一複合物伸張性的量 測,允許該伸張複合物縮回至其本身原來的尺寸。 根據下述的方程式定義伸張性 伸張性=(Le—L。)xlOO% /L。 其中Le為延伸後的長度(即該預定的比例)而L。為該原始樣本長 度。具有-預定的伸張性則具備-樣本的資格,該樣本必須能夠示範下述 的所有條件: (1) ·該樣本必須能夠達到該預定伸張比例。 (2) .當該力量移除的一分鐘間隔内,該樣本必須能夠回縮該張力 的至少80%。該縮回的定義如下: 縮回= {1- (L厂L。)/ (Le—L。)}χ1〇〇〇/0 其中該Lf為該樣本經過該力量釋放一分鐘後的長度,、為伸張過 後的長度(即該預定比例),以及L。為伸張前該原始樣本長度。 (3) .經過第二次及第三次的伸張後,該樣本必須滿足該第一次基 準’接著該侧樣本在、經過第三次伸張後滿足第二次基準。(#實行該測 試期間,僅在第三次伸張之後,檢查該縮回基準)。 (4) .相較於該原始樣本,該樣本不該呈現明顯的結構變化,例如 不明顯的缺失、龜裂或缺陷的產生。 將該吸收複合物裁切成3英吋χ7英吋的樣本,使用由麻薩諸塞州 Carton的Instron公司購得之INSTR〇N4443量測伸張性。使用兩個夾;垂 直地將每讎本固定在職置上,並且在_本上標記域子的位置。兩 個夾子之關距離為4射(L。)。藉由移_上部夾子伸張該樣本,以每 分鐘5公釐的速度向上並且以該延伸的預定長度持續5秒鐘。持續$秒鐘 後,该上部夾子回到原本的位置之後放開該樣本縮回。該上部夹子回到該 原始位置之後的w秒鐘啟動第二次的伸張循環,之後接著第三:欠的循環Α。 第一次及第二次循環的伸張及縮回過程與第一次相同。第三次的伸張循環 完成後將該樣本從該裝置上移除,並且放置在工作台上。釋放該樣本'一= 鐘後測量該兩個記號(Lf)之間的距離。每個樣本在相同的機械方向(md) 及橫向機械方向(CD)上伸張。自該機械方向及橫向機械方向的量測挑選 ALICE-D\PATENT\PK-00 ] -0904 23 200529796 較低伸張值,代表該吸收複合物的伸張性。 【離心保留能力(CRC)測試】 雜。保I力(CRC)峨,量顺高吸收材料在飽和後及在 控制的情況下加上離心力後,將液體留存在其中之測定。該最终保留能力 以每公克重之樣本留存的液體公克數(g/g)表示之。預先筛選通過美國標 準30網孔筛網但留存於美國標準5〇網孔筛網之粒子,做為該樣本測試之 準備。結果’-樣本所包含粒子之尺寸範圍,介於賴〇微米之間。 可手動或自動地預先_檢該粒子,並儲存於一密封不透氣的容器中,直到 測試之時。 將0.2±0駕公克的該預先過本放入不透水的袋子中,測量該 保留能力,其中該袋子包括該樣本且許允_測試溶液(在細水中〇.9重 量百分比的氣化鈉)任意地由該樣本吸收。—熱封性的茶包材料,例如由 美國WmdsorLocks的Dexter公司購得,如型號編號1234T可熱封滤紙, 非常適合多數的顧。錄子是5英咖射袋子材制樣本折疊成 :半而形成、,並熱封兩個開口邊緣,形成_2 5英咖3射的直角小袋。 該熱封處應為珊料_親㈣射驗置。觸樣本放置在該小袋 中,同樣地將該小袋的其餘開口邊緣熱封起來。且製作一個空袋做為對照 組。準,三個樣本(例如填滿的或密封的袋子)做為測試。除非立即地放 置於-密封容H巾,該填滿的袋子必須在配製的三分_分析,在此處的 案例,該填滿的袋子必須在配製的三十分鐘内分析。 將忒屣子放置於兩個具有3英吋開口塗滿玻璃纖維的TEFL〇N⑧篩 網彼得難T_iePlastie μ ),在坑下浸舰賴溶液的盤中, 確定該_固定,朗該帶子已經完全地测為止。测之後,將該樣本 留存在該溶液中將近3G±1分鐘的_,之後將袋子自該溶液移除,並且 暫時地放置在-非吸收的平坦表面上。為了多次的測試,該盤中必須倒空 並再以新鮮的職溶轉充。直到24個好在該财^全飽和之後。 接著將该濕潤的袋子放在一個適合離心的籃形容器中,將35〇的 重力加諸於該樣本上。Heraeus Lab〇Fuge4〇〇為一合適的離心分離機,具有 水伤的收集备、一數位的轉速表及一機械式的排水籃用於保存或排除該 ALICE-D\PATENT\PK-001 -0904 24 200529796 袋子樣本。在離心機中離心數個樣本,在 需相對放4,用鮮_許。以__ (例=;= 的速度離心織子(包括該测的、空的袋子)3分鐘 重,先秤重該空袋子(對照組),之後再將包含該 ^^子並杆 本保有的溶液《,考量由該袋子本身留存的數量,為該 能力(CRC),以每公克樣本所呈現驗體克重絲。更购地^離心 保留能力的測定如下: 乾燥樣本的重量 分析三個樣本’並且平均該結果,來測定該高吸收材料的保留能 力(CRC)。在23°C、50±2%的相對濕度下分析該樣本。 【0.3psi膨脹壓力之膠床滲透性測試】 如此處所述,郷床滲雜貞制試,在此以膨脹壓之膠床 渗透性表示之測定雜粒子(例如該高魏材料或触收複合物)膨脹基 底之滲透性,在此情況下一般稱為“負載,,條件。該用語“負載,,表示該 粒子之知脹由一負載約束,通常與一般運用於該粒子之常見負載一致,例 如由穿用者坐下、走路、扭動等等動作。 一適合用來控制該膠床滲透性測試之裝置圖式於第四圖及第五圖 中,並且標示為228。該分析裝置(228)包括一樣本容器,一般指示為 (230),以及一活塞,通常標示為(236)。該活塞(236)包括具有一同 心圓柱洞(240 )的圓筒LEXAN轉軸(238 ),該轉軸的縱軸方向往下穿孔。 該轉軸(238)的兩個末端以機械處體,提供上部及下部末端,分別標視 為(242)及(246)。一砝碼標示為(248),倚靠在一末端(242),並且 具有一圓筒孔,穿孔通過至少其部分的中心。 將一圓形活塞頭放置於該另一末端(246 ),同時提供一七孔(260 ) 的同心内部環,每個具有0.95公分的直徑,以及14孔(254)的同心外部 環’每個同樣具有0.95公分的直徑。該孔洞(254)及(260)是由該活塞 25 ALICE-D\PATENT\PK-001 -0904 200529796 員(50)的頂相底一穿I而得。該活塞頭亦同時具有—圓筒孔洞(施) 貫穿八中。用以接收雜軸(238)的末端(施)。該活塞頭(⑽)的 底部亦覆蓋有-则網孔向雙軸地伸張的不鏽鋼篩網(264)。 、…σ亥樣本合器(230)包括一圓柱(234)以及一 4〇〇網孔的不銹鋼 布料篩、、、罔(266) ’其向雙軸地伸張拉緊及附著該圓柱的下部末端。一膠體 粒子樣本,在第_中標示為(268),測試細在該圓筒(234)内維持 在該篩網(266)上。 該圓筒(234)可由一透明LEXAN桿或相同材料穿孔,或可由一 LEXAN管或’材料裁切而成,並具有—6公分_部直徑(例如28.27 平方公分的橫面積),具有〇·5公分的厚度以及⑽公分的高度。在該圓柱 (234)的側壁上形成一排水孔(未顯示),在該篩網(266)上將近7.8公 分的高度位置,允許㈣由關柱排出。藉轉_樣本容器·體的水 平線在㈣網(266)上將近7.8公分。由-LEXAN桿或同等材料以機械 製造該活塞頭(25G),使其具有16讀的高度及—符合大小的直徑,以 最小的側隙t裝在該圓柱内,且仍能自由地滑動。可由_ [ΕχΑΝ桿或同 等材料以機H製造該轉軸,同時具有_22公分的外部直徑及GΜ公分的 内部直徑。 乂 該轉軸的上部末端(242)具有2.54公分的長以及1·58公分的直 徑,形成一環狀肩形區(247)支撐該砝碼(248)。該環狀砝碼(248)具 有1.59公分的内部直徑,使其滑落在該轉軸(238)的上部末端(242), 並倚靠成形在該環狀肩形區(247)上。該環狀砝碼可由不鏽鋼或由在該 測试溶液愧夠抵抗其雜作用之其他合適材料製成,其巾朗試溶液為 在蒸顧水中〇·9重量百分比的氣化鈉。該活塞(236)及環狀砝碼(248) 的結合重量將近596公克(g),其與運用於該樣本(268)之壓力(每平 方英忖(psi) 〇·3 碎)相當,或 2〇.7dynes/cm2 (20.7kPa),在 28.27 平方公 分的樣本面積上。 如上所述,測試期間當該測試溶液流通該分析裝置時,該樣本容 器(230)通常倚靠在一 16網孔不銹鋼支撐篩網上(未顯示)。可替換地, 該樣本容器可倚靠在一支撐環上(未顯示)完全地與該圓柱(234)的體 26 ALICE-D\PATENT\PK-001 -0904 200529796 積相同,如此則不限制該支撐環於該容器的底部流動。 在“無膨脹”的條件下引導該膠床滲透性測試,該活塞(236)與 该砝碼(248)安裝於其上,放置在一空的樣本容器(23〇)中,並運用一 移除該台板時精確至〇·01公釐的合適計量器,量測該高度。量測各個樣本 容器(230)高度時是很重要的,當運用多重測試裝置時,使其清空並注 意使用的該活塞(236)及砝碼(248)。當該樣本(268)飽和之後接著產 生膨脹現象時,必須使用相同的活塞(236)及砝碼(248)量測。 預先篩選通過美國標準30網孔篩網但留存於美國標準5〇網孔篩 網之粒子,做為該樣本測試之準備。結果,該測試樣本包括的粒子尺寸介 於300到_微米之間。該粒子可預先由手動或自動地筛檢。同樣地測試 樣本可為as-is粒子。將〇·9公克的該樣本放置於該樣本容器(23〇)中, 並且均勻地在該樣本容器(23〇)的底部展開。該樣本溶劑具有一 〇·9公克 的樣本在其中,以及活塞(236)與站碼(248)放置在該樣本容器⑵ 内的該樣本上,接著放人測試溶液中將近6G分鐘的時間,使該樣本飽和。 、 在此時間的最後,將該樣本容器(230)、活塞(236)、結碼(248) 以及樣本(268)從該溶液中移出。利用之前使用該相同厚度規格,由該 最初的高度制得知只魏原點沒有鶴,藉由重複的量測舰碼(248) 底㈣1筒(234)頂端的高度,即可測定該飽和樣本(268)的厚度。 可藉由量測該空樣本容器(23())、活塞(236)及_ (248)減去飽和後 該樣本(268)所獲得的高度量測,而得知該高度量測。該最終值為該膨 脹樣本的厚度或高度“H”。 最初該滲透性制是藉由將制試溶㈣流動傳送人具有該飽和 樣本(268)、活塞(236)及缺碼(248)之樣本容器(則巾。流入該 樣本容器(23G)中_試溶液流速,細液體的高度,使其維持 本M (23G)底部上7·8公分的位置。量測該液體通過該樣本⑽) 、、广^相對日^間之重5分析。至少在2G秒内收集每秒的資料點,只要該 穩Γ且轉在78公分的高度時。由液體通過該樣本(268)(以 對時間(以秒為單位)的線性最小平方近似,測定通過該 祕樣本(268)的流速Q,以公克/秒(g/s)為單位。 AUCE-D\PATENT\PK-001 -0904 27 200529796 由下列公式獲得滲透性(以平方公分為單位) Κ,*Η*//]/[Α*ρ*Ρ] χ 其、中滲透性(平方公分),Q =流速(g/sec),H—篆本高度(公 刀)// /夜體黏度(泊)(使用於此分析之測試溶液為!泊),A =液體流 通的橫截面積(平方公分),p =液體密度(公克/立方公分)(運用於此分 析甲之測試溶液為丨公克/立方公分)以及p=流體壓力(達因/平方公分) (-般為3,923達因/平方公分)。該流體壓力的計算如下 P= p *g*h ,中液體密度(g/cm3),g=重力加速度,通常為981_2及 h-液體馬度’如於此有關轉床滲透性測試所描述之高度為7·8公分。 測試三個樣本的最低限度,並平均縣絲測定該樣本的膠床參 透性。 / 【複合渗透性測試方法】 利用複合滲透性測試來測定該吸收複合物的滲透性,同時更明確 地以液體流職複合物之厚度為m “ζ_方向”上的·複合物渗 透性。除了下述制提及之外,&測試實f上與上述膠床渗透性測試相 似。回頭參照第四第五圖,選擇不在G3Psi的壓力下膨脹,而讓該吸 收複合物在無負載的壓力下膨脹,但仍在03Psi的壓力下進行其滲透性之 測試(該吸收複合物任意地於0·9重量百分比的氯化鈉食鹽溶液中浸透㈧ 分鐘後,將該活塞(236)及砝碼(248)放置在該吸收複合物上)。同樣 地,以一圓形吸收複合物樣本(268)(如不是組成而成就是相反地由一較 大吸收複合物裁切而成)代替微粒狀的高吸收材料放置在該樣本容器 (230)中’移除該樣本上任何成形的材料覆蓋(例如成形組織),且將具 有6公分直徑該樣本放置在該樣本容器(23〇)中,位於該圓柱(234)的 底部與該篩網(264)接觸。接著在該樣本容器(230)中(其中不具該活 塞及砝碼)放入〇·9重量百分比的氣化鈉食鹽溶液,將近6〇分鐘的時間浸 透該吸收複合物。由該膠床滲透性(GBp)測試讀取,得到相同的高度量 測,例如在空該樣本容器(230)的狀態下及樣本容器(230)内具有該吸 收複合物樣本在其中的狀態下以及其飽和後的狀態。 28 auce-d\patent\pk-〇〇,.〇904 200529796 該吸收複合轉雜翻最轉由傳送—連舰動的食鹽水溶液 進入包含該飽和吸收複合物、雜塞(236)以及軸碼⑽)在_樣 本容器(230) +。以-足夠將液體高度維持在該樣本容器㈤)底部上 7.8公分高度的流速,將食鹽水溶液傳送入該樣本容器(23〇)巾。以重量 分析測量液體通過該吸收複合物相對時間的數量。只要該液面穩定且= 在7.8公分高度時,至少在20秒之内收集每秒的資料點。由液體通過該樣 本容器(23〇)(以公克為單位)相對時間(以秒為單位)的線性最小平方 近似,測定通過該吸收複合樣本(268)的流速Q,以公克緲(g/s)為單 位。接著顧上述提及錢娜床渗透性測試的公式,測定該吸收複合物 的渗透性。 如上所述當處理該吸收複合滲透性測試之時,更明確地將其中該 吸收複合物樣本放人該溶液巾,且不含騎塞級碼在其上,該測試據說 是在“無膨脹”條件下進行,藉以允許該吸收複合物在任何限制負載下自 由的膨脹。在此測試的變化中,可將該活塞級砝碼放置在該樣本容器(23〇 ) 内的樣本上,之後可將該整體裝配放入溶液中,如此將一負載應用於該樣 本上,則該樣本變得飽和且漸漸膨脹。當以此方式進行該測試時,通常表 示在“負載”下進行。 範例 範例1 在此範例中,測量五種不同吸收複合物樣本的複合滲透性,各自 包括不同的高吸收材料並且相互比較。在該吸收複合物樣本中的其他成份 仍存在該樣本之間,僅該高吸收材料(SAM)的種類在該樣本之間具有各 式變化。 在樣本1中的該樣本為SXM9543,可由北卡羅來納州格陵斯堡的 Degussa Superabsorber購得,表面可經由新澤西州Mount Olive的BASF公 司購得,以CATIOFAST®PR8106 (25wt%固體)為商標命名的聚乙烯胺 溶液處理。將該聚乙烯胺溶液預先溶解在蒸餾水中,之後將乾燥的 SXM9543高吸收物質加入該溶液中並且加以攪拌。在經過配置的聚乙烯胺 溶液中,該SXM9543膨脹,呈現每公克2.5公克的程度(舉例來說,30 29 ALICE-D\PATENT\PK-001 -0904 200529796 么克的,燥回吸收物質可由包含3公克的cati〇fast⑧pR8議與72·75 11的祕水處理),之後在60。〇的溫度下乾燥15小時。由0sterizer㊣擾 拌器μ在此雜的設定下高速研磨該乾燥的高吸收物質,並透過850微 米的師子顿。該經過表面處理的SXM9543包含2·5%重量的聚乙婦胺。 在樣本2中的該樣本為未經過處理的SXM9543。 在樣本3中的該樣本為SXM9394,亦可由Degussa Superabs〇rber 購得。 在樣本4中的該樣本為FAVOR(D880,亦可由Degussa Superabsorber 購得。 在樣本5中的該樣本為2035HP ,亦可由密西根州中部D〇w Chemical公司購得。 在各個樣本中’該樣本/彈性材料/紙漿纖維的比例為75/15/10。 該彈性材料為^^101^)02755 ,由德克撒斯州休斯頓的&站〇11 a T購付《亥、、.氏’灸纖維為SulfatateHj ,由喬治亞州jesUp的Ray⑽^公司 購得。 運用描述於此的測試方法分析該複合滲透性及伸張性。在表一及 表二中的全部複合物具有425公克/每平方公尺的基重以及〇·27公克/每立 方公分的密度。
如上表一所示,具有較高GBP值的該樣本有益於改善複合滲透 ALICE-D\PATENT\PK-001 -0904 30 200529796 ’其呈現的必要複 性。全部的樣本證實本發明的必要伸張性,但僅樣本 合滲透性屬於本發明的領域。 範例2 除了該樣本的GBP之外,該複合滲透性亦取決於樣本/彈性體材料 /紙漿纖維的比例。此範例顯示當紙漿纖維的比例增加時, 的比例增加時,該複合滲透性將因此提升。 / ' 表2所含的10個吸收複合物樣本與樣本類型、紙漿類型及/或樣本 /彈性體材料/紙漿纖維的比例的變化有關。在此範例中與範例i使用相同 類型的樣本及彈性體材料。使用於此範例的紙漿纖維種類為1^574仍,由華 盛頓聯邦路市的 Weyerhaeuser 購得;Sulfatate-H-J ( “S-H-J”),由夺、、a 亞
Jesup的Rayonier購得;以及CR1654,由阿拉巴馬州c⑽a朽咖的B〇water 購得。 表二:複合伸張性及滲透性測試結果 樣本 樣本類型 樣本/kraton/紙 漿比例 紙漿類型 滲透性 (達爾西) 伸張性 (% ) 6 PVAm-9543 (2.5%程度) 30/10/60 NF405 35.8 <30 7 PVAm-9543 (2.5%程度) 75/25/0 NA 12.7 100 8 SXM 9543 50/10/40 NF405 18.4 30 9 SXM 9543 75/15/10 NF405 3.1 100 10 SXM 9543 50/10/40 SHJ 11.0 50 11 SXM 9594 50/15/35 SHJ 8.0 50 12 SXM 9543 50/15/35 SHJ 8.7 50 13 PVAm-9543 (2.5%程度) 70/25/5 NF405 11.0 100 14 SXM 9543 50/0/50 CR1654 25.3 0 15 SXM 9394 50/0/50 CR1654 22.8 0 藉由變換該樣本/彈性體材料/紙漿纖維的比例或使用不同的紙漿 ALICE-D\PATENT\PK-001 -0904 31 200529796 纖維,在表-中的部分吸收複合物,如樣本丨滿足該最小的必要複合物渗 透性,如樣本6,無法滿足此例中該伸張性之目標。在表二中,樣本8及 9都同時包括NF405紙f,但具有不同的樣本/彈性體材料/紙聚纖維的比 例。因此,樣本8呈現較高滲透性及較低伸張性,而樣本9呈現出相反的 結果。 、 當樣本及彈性體材料類型與樣本/彈性體材料/紙聚纖維的比例維 持固定時,不同類型的紙漿纖維同樣會影響該複合滲透性。在表二中,樣 本8及10使用不同類型的紙漿纖維,則呈現不同滲透性及伸張性的結合。 該可延伸吸收複合物的伸張性,主要取決於該複合物中彈性聚合 物的類型,以及彈性聚合物的比例。一般來說,一彈性聚合物的比率增加, 一可延伸吸收複合物的伸張性則上升,反之亦然。在表二中,樣本6所具 有的複合滲透值包括在本發明的界限中,但其伸張性值卻落在本發明的界 限外。因此,樣本6將不考慮納入本發明的範圍中。 雖然在複合滲透性中棉毛類型具有細微的效果,不過在此觀點 中,高吸收GBP扮演更重要的角色。所有的樣本證實本發明的必要伸張性 及滲透性,包括表面經過SXM處理的聚乙烯胺高吸收物質,其在〇3psi 膨脹之下具有大於30達爾西的GBP值。在所有的樣本之間,樣本丨證實 50%或更多的複合伸張性以及15達爾西或更多的複合滲透性之結合。當 樣本1包含至少60重量百分比的高吸收物質時,樣本1亦證實3〇%或更 多的複合伸張性以及15達爾西的複合滲透性之結合。樣本1、7及13證 實100%或更多複合伸張性以及10達爾西或更多複合滲透性之結合。具有 低GBP值之咼吸收物質的該其他樣本無法證實複合伸張性及複合渗透值 之結合。 在表二中,樣本4及15僅包含樣本及紙漿纖維,並且依據目前尿 布的製造程序製成,其中不包括任何彈性聚合物,同時呈現100%伸張性。 提供樣本14及15做為參照。 在範例1及範例2中的樣本1-15證實該合適樣本、彈性材料、紙 漿種類及具有定義於此發明有關製造一可伸張吸收複合物材料中平衡比 例的選擇重要性。 ALICE-D\PATENT\PK-001 -0904 32 200529796 將可由前述具財施例鱗_容瞭解,
一特殊優點將不會被解釋成必然代表,如此 範圍之外。 竿父住的具體實施例,仍然缺乏 一具體實施例將屬於本發明的 【圖式簡單說明】 由上述詳細的描述與該圖式之連結,將可更清楚的瞭解本發明的 内容以及其他物件與特徵,其中: 第一圖顯示一方法及裝置,用以製造一吸收複合物的其中一個版 本之概略圖式。 第二圖為一吸收物件的透視圖,其中結合一吸收物件。 第三圖為一吸收物件其中結合一吸收複合物之平面圖,其中該吸 收物件以一水平延伸的狀態,同時顯示該吸收物件的接觸身體的表面。 第四圖描述使用於量測自由流動粒子或吸收複合物之滲透性的 裝置。 第五圖描述第四圖中該裝置之底視圖。 33 ALICE-D\PATENT\PK-001 -0904 200529796 【主要元件符號說明】 20 absorbent composite 吸收複合物 22 elastomeric material 彈性體材料 24 Hoppers 漏斗 26 screw extruder 螺桿擠壓機 28 spin pump 旋轉幫浦 30 meltblown die 熔喷模具 32 Chute 滑槽 34 Picker 摘棉機 36 pulp fiber 紙漿纖維 38 Feeder 供料裝置 40 superabsorbent material 高吸收複合物 42 Hole 孔洞 44 Pipe 輸送管 46 blower fan 鼓風機 48 Pipe 輸送管 50 wire conveyor 細線轉運帶 52 spray boom 喷霧吊桿 54 surfactant mixture 表面活化劑混合物 56 wire vacuum 細線真空機 120 diaper 尿布 122 Front region 前區 124 Back region 背部區 126 Crotch region 胯部區域 34 ALICE-D\PATENT\PK-001 -0904 200529796
128 Body-contacting surface 身體接觸表面 130 Outer surface 外部表面 132 chassis 底部 136 Side edge 側邊緣 138 Front waist edge 前腰邊緣 139 Back waist edge 背腰邊緣 140 Outer cover 外部覆蓋物 142 Body side liner 體側襯裡 152 Leg openings 腿部開口 157 Waist elastic member 腰部彈性部分 158 Leg elastic member 腿部彈性部分 160 Side panel 側布片 228 test apparatus 分析裝置 230 sample container 樣本容器 234 Cylinder 圓柱 236 Piston 活塞 238 shaft 轉軸 240 concentric cylindrical hole 同心圓柱洞 242 upper end 上部末端 246 lower end 下部末端 248 weight 石去碼 250 piston head 活塞頭 254 hole 孔洞 260 hole 孔洞 262 hole 孔洞 264 screen 師網 266 cloth screen 布料篩網 35 ALICE-D\PATENT\PK-001 -0904
Claims (1)
- 200529796 十、申請專利範圍: 1· 一種可伸張吸收複合物,包括: 一高吸收材料;及 一彈性體材料;其中該吸收複合物呈現50%或更多的複合伸張性及15 達爾西或更多的複合滲透性。 2· —種可伸張吸收複合物,包括: 一高吸收材料;及 一彈性體材料;其中該吸收複合物呈現1〇〇%或更多的複合伸張性及1〇 達爾西或更多的複合滲透性。 3·如申請專利範圍第1項或第2項的吸收複合物,包括介於5%及 95%,或50%及95%重量的高吸收材料。 4. 一種可伸張吸收複合物,包括: 60%或更多重量的高吸收材料;以及 一彈性體材料;其中該吸收複合物呈現30%或更多的複合伸張性及15 達爾西或更多的複合渗透性。 5·如申請專利範圍第1到第4項任一項的吸收複合物,進一步包括 介於0%到75%,或介於0%到25%重量的紙漿纖維。 6·如申請專利範圍第1項到第5項任一項的吸收複合物,包括介於5 %到25%重量的彈性體材料。 7·如申請專利範圍第1項到第6項任一項的吸收複合物,進一步包 括一表面活化劑。 8.如申吻專利範圍第1項到第7項任一項的吸收複合物,其中該高 吸收材料在〇.3Psi之下,具有3〇達爾西或更高的膠床滲透性。 9_如申請專利範圍第1項到第8項任一項的吸收複合物,其中該高 吸收材料具有2G公克/公克或更多的離心、保留能力。 10·如申請專利範圍第!項到第9項任一項的吸收複合物,其中該高 吸收材料包括-表面經過聚乙稀胺溶液處理的陰離子高吸收材料。 η·如申請專利範圍帛1項到第1〇項任-項的吸收複合物,其中該彈 性體材料包括至少該群其中一項,有稀烴共聚物、聚乙稀彈性體、聚丙 ALICE-D\P ΑΤΕΝΤ\ΡΚ-001 -0904 36 200529796 、、,,、AKg旨彈性體、乙烯·丙參二烯三聚物、苯乙烯-異戊二渗苯 乙烯苯乙烯-丁一烯·苯乙烯、笨乙烯-異戊二婦_ 丁二婦_苯乙婦、苯乙 稀乙稀/ 丁稀-苯乙烯、苯乙烯-乙婦/丙婦-苯乙婦、聚亞胺醋、聚異戊二 烯、交聯聚丁二烯及其結合。 12. -種吸收物件,其包含上述中請專利範圍任—項的吸收複合物。 13. 種製造方法’用以製造上述申請專利範圍中任一項該可伸張吸 收複合物,該步驟包括: 透過至少一個熔喷模具擠出該彈性體材料; 纖維化多數的紙漿纖維; 將纖維化的紙漿纖維及擠出的彈性體材料與在〇 3psi之下具有30 達爾西或更多膠床滲透性之高吸收材料混合;並且 將高吸收材料、纖維化紙漿纖維以及擠出彈性體材料的混合物轉 移到一轉運帶上。 Η如申請專利範圍第π項的製造方法,當高吸收材料、纖維化紙漿 纖維以及擠出彈性體材料的混合物轉移至一轉運帶時,進一步包括喷灑 一水狀表面活化劑混合物遍及高吸收材料、纖維化紙漿纖維及擠出彈性 體材料的混合物之步驟。 15.如申請專利範圍第13項或第14項的製造方法,其中該高吸收材 料、纖維化紙漿纖維以及擠出彈性體材料的混合物包括介於30%到85 %重量的高吸收材料,介於5%到25%重量的彈性體材料,以及介於 10%到70%重量的紙漿纖維。 37 ALICE-D\PATENT\PK-001 -0904
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-
2003
- 2003-12-18 US US10/739,385 patent/US7662745B2/en active Active
-
2004
- 2004-04-16 MX MXPA06006699A patent/MXPA06006699A/es active IP Right Grant
- 2004-04-16 DE DE602004025275T patent/DE602004025275D1/de not_active Expired - Lifetime
- 2004-04-16 BR BRPI0417722A patent/BRPI0417722B8/pt not_active IP Right Cessation
- 2004-04-16 EP EP04821124A patent/EP1694265B1/en not_active Expired - Lifetime
- 2004-04-16 WO PCT/US2004/011732 patent/WO2005067854A1/en not_active Ceased
- 2004-04-16 CN CN2004800379991A patent/CN1897903B/zh not_active Expired - Fee Related
- 2004-04-16 AU AU2004313345A patent/AU2004313345B2/en not_active Ceased
- 2004-04-16 KR KR1020067011962A patent/KR101075314B1/ko not_active Expired - Lifetime
- 2004-12-03 AR ARP040104524A patent/AR046469A1/es unknown
- 2004-12-03 TW TW093137270A patent/TW200529796A/zh unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0417722B8 (pt) | 2021-06-22 |
| DE602004025275D1 (de) | 2010-03-11 |
| EP1694265B1 (en) | 2010-01-20 |
| US20050137085A1 (en) | 2005-06-23 |
| MXPA06006699A (es) | 2006-08-23 |
| KR101075314B1 (ko) | 2011-10-19 |
| AR046469A1 (es) | 2005-12-07 |
| EP1694265A1 (en) | 2006-08-30 |
| BRPI0417722A (pt) | 2007-04-03 |
| BRPI0417722B1 (pt) | 2021-03-30 |
| CN1897903A (zh) | 2007-01-17 |
| US7662745B2 (en) | 2010-02-16 |
| CN1897903B (zh) | 2012-05-30 |
| WO2005067854A1 (en) | 2005-07-28 |
| AU2004313345B2 (en) | 2010-04-15 |
| KR20060121205A (ko) | 2006-11-28 |
| AU2004313345A1 (en) | 2005-07-28 |
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