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1. (US20110089593) CONJUGATE FIBER FOR AIR-LAID NONWOVEN FABRIC MANUFACTURE AND METHOD FOR MANUFACTURING A HIGH-DENSITY AIR-LAID NONWOVEN FABRIC

المكتب : الولايات المتحدة الأمريكية
رقم الطلب: 12993737 تاريخ الطلب: 19.05.2009
رقم النشر: 20110089593 تاريخ النشر: 21.04.2011
نوع النشر: A1
:مرجعية معاهدة التعاون بشأن البراءات رقم الطلب:PCTJP2009059481؛ رقم النشر:       اضغط لرؤية المعلومات
التصنيف الدولي للبراءات:
D02G 1/20
D02G 3/34
Description not available in lang arDescription not available in lang ar
المتقدمون: ES FIBERVISIONS CO., LTD.
ES FIBERVISIONS HONG KONG LIMITED
ES FIBERVISIONS LP
ES FIBERVISIONS APS
المخترعون: Miyauchi Minoru
Nishitani Takayuki
Teranaka Masashi
بيانات الأولوية: 2008-131090 19.05.2008 JP
العنوان: (EN) CONJUGATE FIBER FOR AIR-LAID NONWOVEN FABRIC MANUFACTURE AND METHOD FOR MANUFACTURING A HIGH-DENSITY AIR-LAID NONWOVEN FABRIC
الملخص:
(EN)

Provided is a conjugate fiber for air-laid nonwoven fabric manufacture having a planar zig-zag crimp shape before a thermal treatment, such that a uniform web is obtained by air laying with high processability and productivity, and the conjugate fiber develops a spiral crimp when the web is subjected to a thermal treatment to thereby enable the web to shrink significantly, as a result of which a nonwoven fabric can be obtained in which fibers are amassed to a high density.

The conjugate fiber for air-laid nonwoven fabric manufacture is a heat-fusible conjugate fiber in which a first component comprising an olefinic thermoplastic resin is conjugated with a second component comprising an olefinic thermoplastic resin having a melting point higher than that of the first component. The conjugate form is such that the centers of gravity of the conjugate components are mutually different in the fiber cross section, the fiber has a single-yarn fineness of 1 to 10 dtex, a fiber length of 3 to 20 mm, and a planar zig-zag crimp whose crimp shape index (actual length of short fiber/distance between both ends of short fiber) ranges from 1.05 to 1.60, and the web shrinkage upon thermal treatment at 145° C. of a web obtained by an air-laid method is not lower than 40%.


:نشرت أيضا باسم
AR071844EP2279293CN102037174KR1020110000756US20150330002WO/2009/142315