TW201941751A - 以緊密相鄰之多重纖維束彈性化之非織物或織物 - Google Patents
以緊密相鄰之多重纖維束彈性化之非織物或織物 Download PDFInfo
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- TW201941751A TW201941751A TW108105397A TW108105397A TW201941751A TW 201941751 A TW201941751 A TW 201941751A TW 108105397 A TW108105397 A TW 108105397A TW 108105397 A TW108105397 A TW 108105397A TW 201941751 A TW201941751 A TW 201941751A
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Classifications
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- A61F13/01034—Non-adhesive bandages or dressings characterised by a property
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- 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
- A61F13/15577—Apparatus or processes for manufacturing
- A61F13/15585—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers
- A61F13/15593—Apparatus or processes for manufacturing of babies' napkins, e.g. diapers having elastic ribbons fixed thereto; Devices for applying the ribbons
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- A61F13/00—Bandages or dressings; Absorbent pads
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/12—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
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- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
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- D—TEXTILES; PAPER
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- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/593—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
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Abstract
本發明提供具有多個以緊密間距配置之末端之拋棄式或可再用彈性化或可拉伸非織物或織物複合物以及其生產方法。
Description
本發明係關於具有多個以緊密間距配置之末端之拋棄式或可再用彈性化或可拉伸非織物或織物以及其生產方法。此等非織物及織物適用於多種應用,包括但不限於家用紡織物、醫療組件、個人及衛生物品(諸如紙尿布及成人失禁服裝)及繃帶。
拉伸非織物或彈性化織物廣泛用於女性衛生、成人失禁及嬰兒及兒童護理目的。此等非織物或織物線上生產且與紙尿布或成人失禁生產整合。然而,由於紙尿布或醫療製造商無法生產具有多個緊密間距配置之纖維末端之寬織物(12吋至65吋)其限於寬間距及較少末端。
美國專利6,713,415揭示一種基於至少400分特及至少8根絲條/吋之彈性體纖維之兩個非編織外層及預拉伸內層的洗衣耐久複合織物。
需要拋棄式或可再用彈性化或可拉伸非織物或織物複合物及用於此生產之方法,其解決需要較寬網狀物及離線獨立生產之問題。
本發明之一態樣係關於拉伸非織物或彈性化織物複合物,其包含兩個實質上相同寬度之非織物或織物之外層,其中各層具有相對於複合織物之一內部表面及一外部表面、具有多個以緊密間距配置之末端之彈性體纖維的一內層;及黏結外層及內層之一黏著劑組合物。
在一個非限制性實施例中,彈性體纖維之內層包含10至700個末端。在一個非限制性實施例中,內層之彈性體纖維間隔1.5 mm至5 mm。
本發明之另一態樣係關於一種用於製造拉伸非織物或彈性化織物複合物之方法。該方法包含將具有多個以緊密間距配置之末端之彈性體纖維的一內層置放於兩個非織物或織物之層之間。在一個非限制性實施例中,內層處於張力下。在一個非限制性實施例中,內層經牽伸2X至4X。在一個非限制性實施例中,內層經牽伸2.5X至4X。接著藉由塗覆黏著劑組合物來黏結兩個非織物或織物之層與彈性體纖維之內層。在一個非限制性實施例中,黏著劑經塗覆至內層纖維且附著至非織物。在一個非限制性實施例中,非織物不含黏著劑。
在一個非限制性實施例中,光束配置之纖維饋入系統用以將彈性體纖維之內層及黏著劑饋入至頂部及/或底部非織物或織物外層上。在另一非限制性實施例中,多紗架纖維配置之系統用以饋入彈性體纖維之內層且在附著至頂部及/或底部非織物或織物外層上之前將黏著劑塗覆至內層纖維。
在一個非限制性實施例中,光束配置之纖維饋入系統用以將彈性體纖維之內層及黏著劑饋入至頂部及/或底部非織物或織物外層上。在另一非限制性實施例中,多紗架纖維配置之系統用以饋入彈性體纖維之內層且在附著至頂部及/或底部非織物或織物外層上之前將黏著劑塗覆至內層纖維。
在此方法之一個非限制性實施例中,彈性體纖維之內層包含10至700個末端。在此方法之一個非限制性實施例中,內層之彈性體纖維間隔1.5 mm至5 mm。
本發明之另一態樣係關於製品,其至少一部分包含本文中所揭示之拉伸非織物或彈性化織物複合物。
本發明提供的係拋棄式或可再用彈性化或可拉伸非織物或織物複合物及用於產生此等可拉伸非織物或織物複合物之方法,該等複合物適用作例如家用紡織物、醫療組件、個人及衛生物品(諸如尿布、成人失禁服裝、繃帶等)及其生產方法。
本發明之拋棄式或可再用彈性化或可拉伸非織物或織物複合物包含兩個非織物或織物之外層,其各自具有內部表面及外部表面。在一個非限制性實施例中,此等兩個外層具有實質上相等之寬度。
本發明之拋棄式或可再用彈性化或可拉伸非織物或織物複合物進一步包含具有多個以緊密間距配置之末端的彈性體纖維之內層。
如本文中所使用,「多個末端」意欲包括但不限於約10至約700個末端。
如本文中所使用,「緊密間距」意謂彈性體纖維間隔1.5 mm至5 mm。
在一個非限制性實施例中,彈性體纖維之至少一部分包含彈性人造纖維。
此外,本發明之拋棄式或可再用彈性化或可拉伸非織物或織物複合物包含黏結外層與內層之黏著劑組合物。
各種基板可用作外層。
在一個非限制性實施例中,使用如本文中所描述之用於彈性化之相對非彈性外層。非織物基板或「網狀物」為具有個別纖維、長絲或線之結構的基板,該等纖維、長絲或線插入中間,但不以可識別重複方式。非織物基板可藉由多種習知方法,諸如例如熔噴方法、紡黏方法及黏梳織物方法形成。梳織物方法之非限制性實例為使用水力噴射以使切段纖維纏繞之射流。熔噴基板或網狀物為由熔噴纖維製成之彼等基板或網狀物。熔噴纖維係藉由將熔融之熱塑性材料擠壓通過複數個精細(通常圓形)模毛細管呈熔融之熱塑性材料或長絲形式成為高速度氣體(例如空氣)流來形成。此使熔融之熱塑性材料之長絲變細以減小其直徑,其可為微纖維直徑。其後,熔噴纖維藉由高速度氣體流承載且沈積於收集表面上以形成隨機分配之熔噴纖維之網狀物。此類方法揭示於例如美國專利第3,849,241號中,該專利以引用之方式併入本文中。
紡黏型基板或「網狀物」為由紡黏型纖維製成之彼等基板或「網狀物」。紡黏型纖維為藉由自spinerette之複數個精細(通常圓形)毛細管擠壓熔融之熱塑性材料為長絲來形成之小直徑纖維。經擠壓之長絲之直徑接著如藉由例如拉伸或其他熟知紡黏機構而快速減小。紡黏型非織物網狀物之生產說明於例如美國專利第3,692,618號及第4,340,563號中,兩個專利皆以引用之方式併入本文中。
可自廣泛多種材料建構相對非彈性基板。適合的材料例如可包括:聚乙烯、聚丙烯、聚酯(諸如聚對苯二甲酸伸乙酯)、聚丁烷、聚甲基戊烯、乙烯丙烯共聚物、聚醯胺、四嵌段聚合物、苯乙烯類嵌段共聚物、聚六亞甲基己二醯胺、聚-(oc-己醯胺)、聚六亞甲基癸二醯胺、聚乙烯、聚苯乙烯、聚胺基甲酸酯、聚三氟氯乙烯、乙烯乙酸乙烯酯聚合物、聚醚酯、棉、嫘縈、大麻及耐綸。此外,此類材料類型之組合可用於形成本文中待彈性化之相對非彈性基板。
較佳的本文中待彈性化之基板包括諸如聚合性紡黏型非織物網狀物之結構。尤其較佳的係具有約10至約40公克/平方米之基本重量之紡黏型聚烯烴非織物網狀物。更佳地,此類結構為具有約14至約25公克/平方米之基本重量之聚丙烯紡黏型非織物網狀物。
如上文所描述之相對非彈性基板可藉由將某一類型之彈性體聚胺基甲酸酯材料以黏著方式黏結至此類基板中之一或多者來彈性化。在聚胺基甲酸酯材料牽伸至伸長狀態時,發生與待彈性化之基板的此類黏著性黏結。
在一個非限制性實施例中,內層之彈性體纖維包含彈性人造纖維。
本發明之彈性人造纖維符合「其中纖維成型物質為包含至少85%之嵌段聚胺基甲酸酯之長鏈合成聚合物的製造纖維」之定義。在彈性人造纖維之熱處理之後的彈性特性及彈性特性之保持非常取決於嵌段聚胺基甲酸酯之含量及嵌段聚胺基甲酸酯之化學組成、微域結構及聚合物分子量。如已明確,嵌段聚胺基甲酸酯為長鏈聚胺基甲酸酯之一個家族,其藉由羥基封端聚合二醇、二異氰酸酯及低分子量增鏈劑之階段聚合作用由硬鏈段與軟鏈段組成。視所用增鏈劑、二醇或二胺之性質而定,嵌段聚胺基甲酸酯中之硬鏈段可為胺基甲酸酯或脲。將具有脲硬鏈段之嵌段聚胺基甲酸酯分類為聚胺基甲酸酯脲。一般而言,脲硬鏈段比胺基甲酸酯硬鏈段形成更強的充當物理交聯點之鏈間氫鍵結。因此,二胺鏈擴增之聚胺基甲酸酯脲通常比短鏈二醇擴增之聚胺基甲酸酯具有較好成型的結晶硬鏈段域伴以較高熔融溫度及軟鏈段與硬鏈段之間的較好的相分離。由於脲硬鏈段對熱處理之完整性及抵抗性,通常經由溶液紡絲方法(濕式紡絲或乾式紡絲)將聚胺基甲酸酯脲紡絲成纖維。用胺基甲酸酯硬鏈段及所選擇之聚胺基甲酸酯脲纖維生產之聚胺基甲酸酯纖維亦可藉由熔融紡絲生產。
可使用兩種或兩種以上嵌段聚胺基甲酸酯或聚胺基甲酸酯脲之混合物或摻合物。視情況,嵌段聚胺基甲酸酯脲之混合物或摻合物亦可與另一嵌段聚胺基甲酸酯或其他纖維成型聚合物一起使用。
聚胺基甲酸酯或聚胺基甲酸酯脲係藉由兩步驟方法製得。在第一步驟中,異氰酸酯封端胺基甲酸酯預聚物係藉由使聚合二醇與二異氰酸酯反應來形成。通常,二異氰酸酯與二醇之莫耳比控制在1.50至2.50範圍內。視需要,可在此預聚合步驟中使用催化劑以輔助反應。在第二步驟中,將胺基甲酸酯預聚物溶解於諸如N,N-二甲基乙醯胺(DMAc)之溶劑中,且用短鏈二胺或二胺之混合物增鏈以形成聚胺基甲酸酯脲溶液。聚胺基甲酸酯脲之聚合物分子量係藉由少量單官能性乙醇或胺,通常小於60毫當量/公斤之聚胺基甲酸酯脲固體(在第一步驟中及/或在第二步驟中添加與反應)控制。可在形成聚胺基甲酸酯脲之後但將溶液紡絲成纖維之前的任何階段將添加劑混合至聚合物溶液中。纖維中之總添加劑量通常小於10重量%。在紡絲之前聚合物溶液中之包括添加劑的固體含量通常控制在溶液之30.0重量%至40.0重量%範圍內。為了最優紡絲效能,溶液黏度通常控制在2000至5000泊範圍內。適合的嵌段聚胺基甲酸酯聚合物亦可於熔融物中製得,其限制條件為硬鏈段熔點足夠低。用於聚胺基甲酸酯脲之適合的聚合二醇包括數量平均分子量為約600至約3,500之聚醚二醇、聚碳酸酯二醇及聚酯二醇。可包括兩種或更多種聚合二醇或共聚物之混合物。
可使用之聚醚二醇之實例包括來自環氧乙烷、環氧丙烷、氧化三亞甲基、四氫呋喃及3-甲基四氫呋喃之開環聚合及/或共聚合或來自縮合的具有兩個末端羥基之彼等二醇。
在各分子中具有小於12個碳原子之多元醇(諸如二醇或二醇混合物)之聚合,諸如乙二醇、1,3-丙二醇、1,4-丁二醇、1,5-戊二醇、1,6-己二醇、2,2-二甲基-1,3-丙二醇、3-甲基-1,5-戊二醇、1,7-庚二醇、1,8-辛二醇、1,9-壬二醇、1,10-癸二醇及1,12-十二烷二醇。線性、雙功能聚醚多元醇為較佳的,且具有約1,700至約2,100之數目平均分子量之聚(四亞甲基醚)二醇,諸如具有2個官能基之Terathane®1800 (Wichita,Kans.之INVISTA)為特定適合二醇之一個實例。共聚物可包括聚(四亞甲基醚共伸乙醚)二醇及聚(2-甲基四亞甲基醚共伸丁醚)二醇。
可使用之聚酯二醇之實例包括具有兩個末端羥基的彼等酯二醇,其藉由脂族聚羧酸與在各分子中具有不超過12個碳原子的低分子量多元醇或其混合物之縮聚產生。適合的聚羧酸之實例為丙二酸、丁二酸、戊二酸、己二酸、庚二酸、辛二酸、壬二酸、癸二酸、十一烷二甲酸及十二烷二甲酸。用於製備聚酯多元醇之適合的二醇之實例為乙二醇、1,3-丙二醇、1,4-丁二醇、1,5-戊二醇、1,6-己二醇、新戊二醇、3-甲基-1,5-戊二醇、1,7-庚二醇、1,8-辛二醇、1,9-壬二醇、1,10-癸二醇及1,12-十二烷二醇。熔融溫度為約5℃至約50℃之線性雙官能聚酯多元醇為特定聚酯二醇之實例。
可使用之聚碳酸酯二醇之實例包括具有兩個末端羥基的彼等碳酸酯二醇,其藉由光氣、氯甲酸酯、碳酸二烷基酯或碳酸二烯丙酯及在各分子中具有不超過12個碳原子的低分子量脂族多元醇或其混合物之縮聚產生。用於製備聚碳酸酯多元醇之適合的多元醇之實例為二乙二醇、1,3-丙二醇、1,4-丁二醇、1,5-戊二醇、1,6-己二醇、新戊二醇、3-甲基-1,5-戊二醇、1,7-庚二醇、1,8-辛二醇、1,9-壬二醇、1,10-癸二醇及1,12-十二烷二醇。具有約5℃至約50℃之融熔溫度的線性雙官能聚碳酸酯多元醇為特定的聚碳酸酯多元醇之實例。
用以製得聚胺基甲酸酯脲之二異氰酸酯組分可包括單一二異氰酸酯或不同二異氰酸酯之混合物,包括含有4,4'-亞甲基雙(異氰酸苯酯)及2,4'-亞甲基雙(異氰酸苯酯)之二苯基甲烷二異氰酸酯(diphenylmethane diisocyanate,MDI)的異構體混合物。可包括任何適合的芳族或脂族二異氰酸酯。可使用之二異氰酸酯之實例包括但不限於4,4'-亞甲基雙(異氰酸苯酯)、4,4'-亞甲基雙(異氰酸環己酯)、1,4-二甲苯二異氰酸酯、2,6-甲苯二異氰酸酯、2,4-甲苯二異氰酸酯及其混合物。特定聚異氰酸酯組份之實例包括Takenate® 500 (Mitsui Chemicals)、Mondur® MB (Bayer)、Lupranate® M (BASF)及lsonate® 125 MDR (Dow Chemical)及其組合。
用於製得聚胺基甲酸酯脲之適合的二胺增鏈劑之實例包括:1,2-乙二胺;1,4-丁二胺;1,2-丁二胺;1,3-丁二胺;1,3-二胺基-2,2-二甲基丁烷;1,6-己二胺;1,12-十二烷二胺;1,2-丙二胺;1,3-丙二胺;2-甲基-1,5-戊二胺;1-胺基-3,3,5-三甲基-5-胺甲基環己烷;2,4-二胺基-1-甲基環己烷;N-甲胺基雙(3-丙胺);1,2-環己二胺;1,4-環己二胺;4,4'-亞甲基-雙(環己胺);異佛爾酮二胺;2,2-二甲基-1,3-丙二胺;間四甲基二甲苯二胺;1,3-二胺基-4-甲基環己烷;1,3-環己烷-二胺;1,1-亞甲基-雙(4,4'-二胺基己烷);3-胺甲基-3,5,5-三甲基環己烷;1,3-戊二胺(1,3-二胺基戊烷);間二甲苯二胺;及Jeffamine® (Texaco)。視情況,水及三級醇,諸如第三丁醇與u-異丙苯基醇亦可被用作增鏈劑以製得聚胺基甲酸酯脲。
當需要聚胺基甲酸酯時,所用增鏈劑或增鏈劑之混合物應為二醇。可使用之此類二醇之實例包括但不限於乙二醇、1,3-丙二醇、1,2-丙二醇、3-甲基-1,5-戊二醇、2,2-二甲基-1,3-三亞甲基二醇、2,2,4-三甲基-1,5-戊二醇、2-甲基-2-乙基-1,3-丙二醇、1,4-雙(羥基乙氧基)苯、1,4-丁二醇以及其混合物。
單官能醇或初級/二級單官能胺可包括在內作為鏈終止劑以控制聚胺基甲酸酯脲之分子量。亦可包括一或多種單官能醇與一或多種單官能胺之摻合物。
適用作本發明之鏈終止劑之單官能醇的實例包括選自由以下組成之群的至少一個成員:具有1至18個碳之脂族及環脂族初級及二級醇;酚;經取代之酚;分子量小於約750之乙氧基化烷基酚及乙氧基化脂肪醇,包括分子量小於500;羥胺;經羥甲基及羥乙基取代之三級胺;經羥甲基及羥乙基取代之雜環化合物及其組合,包括糠醇、四氫糠醇、N-(2-羥乙基)丁二醯亞胺、4-(2-羥乙基)嗎啉、甲醇、乙醇、丁醇、新戊基醇、己醇、環己醇、環己烷甲醇、苄醇、辛醇、十八醇、N,N-二乙基羥胺、2-(二乙胺基)乙醇、2-二甲胺基乙醇及4-哌啶基乙醇及其組合。較佳地,此類單官能醇係在製得胺基甲酸酯預聚物以控制在稍後步驟形成之聚胺基甲酸酯脲之聚合物分子量的步驟中反應。
適用作聚胺基甲酸酯脲之鏈終止劑之適合的單官能一級胺之實例包括但限於乙胺、丙胺、異丙胺、正丁胺、第二丁胺、第三丁胺、異戊胺、己胺、辛胺、乙基己胺、十三胺、環己胺、油胺及十八胺。適合的單官能二烷基胺封端劑之實例包括:N,N-二乙胺、N-乙基-N-丙基胺、N,N-二異丙胺、N-第三丁基-N-甲胺、N-第三丁基-N-苄胺、N,N-二環己胺、N-乙基-N-異丙胺、N-第三丁基-N-異丙胺、N-異丙基-N-環己胺、N-乙基-N-環己胺、N,N-二乙醇胺及2,2,6,6-四甲基哌啶。較佳地,此類單官能胺在控制聚胺基甲酸酯脲之聚合物分子量之增鏈步驟期間使用。視情況,諸如乙醇胺、3-胺基-1-丙醇、異丙醇胺及N-甲基乙醇胺之胺基醇亦可用於在增鏈反應期間調節聚合物分子量。
可視情況包括於彈性體纖維中之添加劑之類別列於以下。包括例示性及非限制性清單。然而,額外添加劑為此項技術中所熟知。實例包括:抗氧化劑、UV穩定劑、著色劑、顏料、交聯劑、相變材料(固體石臘)、抗微生物劑、礦物(亦即,銅)、微膠囊化添加劑(亦即,蘆薈、維生素E凝膠、蘆薈、海帶、菸鹼、咖啡鹼、香料或香精)、奈米粒子(亦即,二氧化矽或碳)、碳酸鈣、阻燃劑、抗黏劑、抗氯分解添加劑、維生素、藥品、芳香劑、導電添加劑、可染性及/或染料輔助試劑(諸如四級銨鹽)。
可添加之其他添加劑包括助黏劑及可熔性改良添加劑、抗靜電劑、抗蠕變劑、光學增亮劑、聚結劑、導電添加劑、發光添加劑、潤滑劑、有機及無機填充劑、防腐劑、調質劑、熱致變色添加劑、驅蟲劑及潤濕劑、穩定劑(受阻酚、氧化鋅、受阻胺)、助滑劑(聚矽氧油)及其組合。
添加劑可提供一或多種有益特性,包括:可染性、疏水性(亦即,聚四氟乙烯(PTFE))、親水性(亦即,纖維素)、摩擦控制、抗氯性、抗降解性(亦即,抗氧化劑)、黏著性及/或可熔性(亦即,黏著劑與助黏劑)、阻燃性、抗微生物特性(銀、銅、銨鹽)、障壁、導電性(碳黑)、拉伸特性、顏色、螢光、可循環性、生物降解性、芳香、黏性控制(亦即,金屬硬脂酸鹽)、觸覺特性、定型能力、熱調節(亦即,相變材料)、營養、消光劑(諸如二氧化鈦)、穩定劑(諸如水滑石)、碳鈣鎂礦與水菱鎂礦之混合物、防UV劑及其組合。
可以任何適合於達成所需效果之量包括添加劑。
彈性人造纖維可由聚胺基甲酸酯或聚胺基甲酸酯脲聚合物溶液經由纖維紡絲方法(諸如乾式紡絲、濕式紡絲或熔融紡絲)形成。在乾式紡絲中,將包含聚合物及溶劑之聚合物溶液經由紡絲頭孔計量至紡絲腔室中以形成一或多根長絲。當需要由聚胺基甲酸酯脲製得之彈性人造纖維時,聚胺基甲酸酯脲通常經乾式紡絲或濕式紡絲。當需要由聚胺基甲酸酯製得之彈性人造纖維時,聚胺基甲酸酯通常經熔融紡絲。
通常,將聚胺基甲酸酯脲聚合物自與已用於聚合反應之溶劑相同之溶劑乾式紡絲成長絲。氣體通過腔室以蒸發溶劑從而固化長絲。以至少200米/分鐘之捲繞速度使長絲乾式紡絲。可以任何所需速度,諸如超過800公尺/分鐘之速度使彈性人造纖維紡絲。如本文中所使用,術語「紡絲速度」係指紗線卷取速度。
彈性人造纖維長絲之良好紡絲能力之特徵為紡絲單元及捲繞中之不頻繁長絲斷裂。彈性人造纖維可紡絲為單一長絲或可藉由習知技術聚結為複絲紗線。複絲紗線中之各長絲可通常具有紡織品分特(dtex),例如,在每根長絲6至25 dtex範圍內。
呈單一長絲或複絲紗線形式之彈性人造纖維通常用於彈性化基板以形成本文中之複合結構。複絲彈性人造纖維紗線常常將包含每束紗線約4至約120根長絲。尤其適合的彈性人造纖維長絲或紗線為在約200至約3600分特,包括約200分特至約2400分特及約540至約1880分特範圍內者。
彈性體纖維之內層黏著性黏結或附著至彈性化之相對非彈性基板。一般經由使用習知熱熔黏著劑來實現本文中所選類型之聚胺基甲酸酯與此類非彈性可撓性基板之黏著性黏結。
習知熱熔黏著劑通常為熱塑性聚合物,其展現高初始黏性、在組分之間提供良好的黏結強度且具有良好的紫外線及熱穩定性。較佳的熱熔黏著劑將為壓敏性的。適合的熱熔黏著劑之實例為包含選自由以下組成之群之聚合物的彼等:苯乙烯-異戊二烯-苯乙烯(SIS)共聚物;苯乙烯-丁二烯-苯乙烯(SBS)共聚物;苯乙烯-乙烯-丁烯-苯乙烯(SEBS)共聚物;乙烯-乙酸乙烯酯(EVA)共聚物;非晶聚-α-烯烴(APAO)聚合物及共聚物;及乙烯-苯乙烯互聚物(ESI)。最佳為基於苯乙烯-異戊二烯-苯乙烯(SIS)嵌段共聚物之黏著劑。熱熔黏著劑係可商購的。
其由Bostik以諸如H-2104、H-2494、H-4232及H-20043;由H.B. Fuller Company以HL-1486及HL-1470;及由National Starch Company以NS-34-3260、NS-34-3322及NS-34-560之名稱出售。
其由Bostik以諸如H-2104、H-2494、H-4232及H-20043;由H.B. Fuller Company以HL-1486及HL-1470;及由National Starch Company以NS-34-3260、NS-34-3322及NS-34-560之名稱出售。
本發明亦提供一種製造此等拉伸非織物或彈性化織物複合物之方法。
該方法包含將具有多個以緊密間距配置之末端之彈性體纖維的內層置放於兩個非織物或織物之層之間。在一個非限制性實施例中,內層處於張力下。在一個非限制性實施例中,內層經牽伸2X至4X。在一個非限制性實施例中,內層經牽伸2.5X至4X。在此方法之一個非限制性實施例中,彈性體纖維之內層包含10至700個末端。在此方法之一個非限制性實施例中,內層之彈性體纖維間隔1.5 mm至5 mm。
接著藉由塗覆黏著劑組合物來黏結兩個非織物或織物之層與彈性體纖維之內層。在一個非限制性實施例中,黏著劑經塗覆至內層纖維且附著至非織物。在一個非限制性實施例中,非織物不含黏著劑。
膠遷移通過多孔非織物或織物將導致過量停工時間以清潔膠堆積層壓機。此外,膠遷移至網狀物中將導致非織物或織物之發黏及粗糙之手感。因此,較佳為與非織物或織物之網狀物完整性或纖維黏結完整性經配置以停止或最小化膠遷移至非織物或織物中。
在一個非限制性實施例中,光束配置之纖維饋入系統用以將彈性體纖維之內層及黏著劑饋入至頂部及/或底部非織物或織物外層上。
在另一非限制性實施例中,多紗架纖維配置之系統用以饋入彈性體纖維之內層且在附著至頂部及/或底部非織物或織物外層上之前將黏著劑塗覆至內層纖維。紗架系統允許饋入10至200個末端而不損害纖維或網狀物完整性。
在一個非限制性實施例中,在方法中使用冷硬軋輥以淬滅黏著劑之熱溫度,藉此停止或最小化黏著劑遷移至非織物或織物基板中。
本發明亦提供製品,其至少部分包含本文中所揭示之拉伸非織物或彈性化織物複合物。此類製品之非限制性實例包括家用紡織物、醫學組件、個人衛生物品、尿布、成人失禁服裝及繃帶。用本文中所揭示之拉伸非織物或彈性化織物複合物製備之製品具有較好的手感、合身性及舒適度。
所引用之所有專利、專利申請案、測試程序、優先權文獻、文章、公開案、手冊及其他文獻以引用之方式完全併入本文中,引用之程度為該等揭示內容不會與本發明不一致及在所有權限中准許此類併入。
以下測試方法表明本發明及其使用功能。本發明能夠具有其他及不同實施例,且能夠在不背離本發明之範疇及精神下在各種明顯方面修改其若干細節。因此,測試方法應被視為本質上說明性且非限制性的。
用於複合物之測試方法
用於複合物之測試方法
用以測試複合物之回縮力之測試方法為使用ASTM D4964之拉伸測試。
圖式為概述用於產生本發明之拋棄式或可再用彈性化或可拉伸非織物或織物複合物之方法的非限制性實施例的圖式。
Claims (20)
- 一種拉伸非織物或彈性化織物複合物,其包含:(a)兩個實質上相等寬度之非織物或織物外層,其中各層具有相對於該複合織物之一內表面及一外表面;(b)具有多個以緊密間距配置之末端之彈性體纖維的一內層;及(c)黏結該等外層及內層之一黏著劑組合物。
- 如請求項1之拉伸非織物或彈性化複合織物,其中該內層處於張力下。
- 如請求項1之拉伸非織物或彈性化複合織物,其中該內層經牽伸2X至4X。
- 如請求項1之拉伸非織物或彈性化複合織物,其中該內層經牽伸2.5X至4X。
- 如請求項1至4中任一項之拉伸非織物或彈性化複合織物,其中彈性體纖維之該內層包含10至700個末端。
- 如請求項1至4中任一項之拉伸非織物或彈性化複合織物,其中該內層之該彈性體纖維間隔1.5 mm至5 mm。
- 如請求項1至4中任一項之拉伸非織物或彈性化複合織物,其中該彈性體纖維包含彈性人造纖維。
- 一種用於製造一拉伸非織物或彈性化織物複合物之方法,其包含以下步驟: (a)將具有多個以緊密間距配置之末端之彈性體纖維的一內層置放於非織物或織物之頂部外層與底部外層之間;及 (b)藉由塗覆一黏著劑組合物來使非織物或織物之該等頂部外層及底部外層與彈性體纖維之該內層黏結。
- 如請求項8之方法,其中該內層在張力下。
- 如請求項8之方法,其中該內層經牽伸2X至4X。
- 如請求項8之方法,其中該內層經牽伸2.5X至4X。
- 如請求項8至11中任一項之方法,其中彈性體纖維之該內層包含10至700個末端。
- 如請求項8至11中任一項之方法,其中該內層之該彈性體纖維間隔1.5 mm至5 mm。
- 如請求項8至11中任一項之方法,其中該彈性體纖維包含彈性人造纖維。
- 如請求項8至11中任一項之方法,其中光束配置之纖維饋入系統將彈性體纖維之該內層及黏著劑饋入至該等頂部及/或底部非織物或織物外層上。
- 如請求項8至11中任一項之方法,其中多紗架纖維配置之系統將彈性體纖維之該內層饋入至該等頂部及/或底部非織物或織物外層上。
- 如請求項16之方法,其中該紗架系統饋入10至200個末端。
- 如請求項8至11中任一項之方法,其中該黏著劑為熱熔黏著劑且一冷硬軋輥淬滅該黏著劑之熱溫度以停止或最小化至該等非織物或織物層中之遷移。
- 一種製品,其至少一部分包含如請求項1至7中任一項之拉伸非織物或彈性化織物複合物。
- 如請求項19之製品,其包含一家用紡織物、一醫療組件、一個人衛生物品、一尿布、一成人失禁服裝或一繃帶。
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US201862634222P | 2018-02-23 | 2018-02-23 | |
US62/634,222 | 2018-02-23 |
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TW201941751A true TW201941751A (zh) | 2019-11-01 |
TWI794412B TWI794412B (zh) | 2023-03-01 |
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TW108105397A TWI794412B (zh) | 2018-02-23 | 2019-02-19 | 以緊密相鄰之多重纖維束彈性化之非織物或織物、其製造方法及纖維製品 |
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US (1) | US20210086473A1 (zh) |
EP (1) | EP3799566A1 (zh) |
JP (1) | JP7343512B2 (zh) |
KR (1) | KR20200124671A (zh) |
CN (1) | CN111836607A (zh) |
BR (1) | BR112020017102A2 (zh) |
MX (1) | MX2020008640A (zh) |
TW (1) | TWI794412B (zh) |
WO (1) | WO2019164696A1 (zh) |
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KR20230097123A (ko) * | 2020-10-30 | 2023-06-30 | 나이키 이노베이트 씨.브이. | 비대칭면 합성 부직 텍스타일 및 그 제조 방법 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
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DE1283430B (de) * | 1966-11-19 | 1968-11-21 | Mayer Textilmaschf | Spulengestell zum Schaeren von elastischen Faeden auf Teilkettbaeume fuer Kettenwirkmaschinen |
US3849241A (en) | 1968-12-23 | 1974-11-19 | Exxon Research Engineering Co | Non-woven mats by melt blowing |
DE1950669C3 (de) | 1969-10-08 | 1982-05-13 | Metallgesellschaft Ag, 6000 Frankfurt | Verfahren zur Vliesherstellung |
US4340563A (en) | 1980-05-05 | 1982-07-20 | Kimberly-Clark Corporation | Method for forming nonwoven webs |
GB2200594B (en) * | 1987-01-16 | 1991-02-13 | Riker Laboratories Inc | High elastic modulus bandage |
JP2999886B2 (ja) * | 1992-08-28 | 2000-01-17 | 花王株式会社 | 吸収性物品の製造方法 |
TW469226B (en) | 1998-10-02 | 2001-12-21 | Du Pont | Uniform stretchable fabric with flat surface appearance |
JP2005320636A (ja) | 2004-05-06 | 2005-11-17 | Opelontex Co Ltd | 紙おむつ用伸縮性不織布の製造方法 |
US7465367B2 (en) | 2005-01-07 | 2008-12-16 | Innovative Elastics Limited | Process for forming a laminate |
JP6026742B2 (ja) | 2008-08-06 | 2016-11-16 | インヴィスタ テクノロジーズ エスアエルエル | 使い捨て衛生用製品および衣料品の構成材に有用な、弾性の複合構造物の製造方法 |
JP5969730B2 (ja) * | 2009-12-28 | 2016-08-17 | ユニ・チャーム株式会社 | 吸収性物品の製造装置 |
US20120168068A1 (en) * | 2010-12-29 | 2012-07-05 | Saint-Gobain Technical Fabrics America, Inc. | Contourable core fabric and method of making same |
BR112015016813A2 (pt) * | 2013-01-14 | 2017-07-11 | Invista Tech Sarl | conjunto de transporte de fio elástico e método para transportar múltiplos fios |
JP6321928B2 (ja) * | 2013-07-18 | 2018-05-09 | 日東電工株式会社 | 伸縮性積層体およびそれを含む物品 |
JP6751284B2 (ja) | 2014-06-09 | 2020-09-02 | 旭化成株式会社 | 肌触りの良い伸縮複合材料 |
EP3558189B1 (en) * | 2016-12-20 | 2021-06-23 | The Procter & Gamble Company | Methods and apparatuses for making elastomeric laminates with elastic strands provided with a spin finish |
-
2019
- 2019-02-11 JP JP2020544523A patent/JP7343512B2/ja active Active
- 2019-02-11 MX MX2020008640A patent/MX2020008640A/es unknown
- 2019-02-11 KR KR1020207024180A patent/KR20200124671A/ko not_active Application Discontinuation
- 2019-02-11 CN CN201980014850.8A patent/CN111836607A/zh active Pending
- 2019-02-11 EP EP19707249.9A patent/EP3799566A1/en active Pending
- 2019-02-11 BR BR112020017102-6A patent/BR112020017102A2/pt active Search and Examination
- 2019-02-11 US US16/971,787 patent/US20210086473A1/en not_active Abandoned
- 2019-02-11 WO PCT/US2019/017535 patent/WO2019164696A1/en unknown
- 2019-02-19 TW TW108105397A patent/TWI794412B/zh active
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TWI794412B (zh) | 2023-03-01 |
BR112020017102A2 (pt) | 2021-03-23 |
US20210086473A1 (en) | 2021-03-25 |
JP2021514868A (ja) | 2021-06-17 |
KR20200124671A (ko) | 2020-11-03 |
MX2020008640A (es) | 2020-12-10 |
WO2019164696A1 (en) | 2019-08-29 |
JP7343512B2 (ja) | 2023-09-12 |
CN111836607A (zh) | 2020-10-27 |
EP3799566A1 (en) | 2021-04-07 |
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