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    Water-dispersible and multicomponent fibers from sulfopolyesters
    23.
    发明授权
    Water-dispersible and multicomponent fibers from sulfopolyesters 有权
    来自磺基多酯的水分散性和多组分纤维

    公开(公告)号：US07687143B2

    公开(公告)日：2010-03-30

    申请号：US11648955

    申请日：2007-01-03

    申请人： Rakesh Kumar Gupta ,  Scott Ellery George ,  Daniel William Klosiewicz ,  Kab Sik Seo ,  Coralie McKenna Fleenor ,  Allen Lynn Crain

    发明人： Rakesh Kumar Gupta ,  Scott Ellery George ,  Daniel William Klosiewicz ,  Kab Sik Seo ,  Coralie McKenna Fleenor ,  Allen Lynn Crain

    IPC分类号： D02G3/00

    CPC分类号： D01F8/14 ,  Y10T428/2913 ,  Y10T428/2918 ,  Y10T428/2924 ,  Y10T428/2929

    摘要： Disclosed are multicomponent fibers derived from a blend of a sulfopolyester with a water non-dispersible polymer wherein the as-spun denier is less than about 6 and wherein the water dispersible sulfopolyester exhibits a melt viscosity of less than 12,000 poise measured at 240° C. at a strain rate of 1 rad/sec, wherein the sulfopolyester comprising less than about 25 mole % of residues of at least one sulfomonomer, based on the total moles of diacid or diol residues, and wherein said poly(ethylene) terephthalate has an inherent viscosity of less than 0.55 dL/g. The multicomponent fiber is capable of being drawn at a relatively high fiber speed, particularly at least about 2000 m/min, and may be used to produce microdenier fibers. Fibrous articles may be produced from the multicomponent fibers and microdenier fibers. Also disclosed is a process for multicomponent fibers, nonwoven fabrics, and microdenier webs.

    摘要翻译： 公开了衍生自磺基聚酯与水不可分散聚合物的共混物的多组分纤维，其中初纺旦尼尔小于约6，并且其中水分散性磺基聚酯在240℃下测量的熔体粘度小于12,000泊。 以1rad / sec的应变速率，其中基于二酸或二醇残基的总摩尔数，磺基聚酯包含少于约25摩尔％的至少一种磺基单体的残基，并且其中所述聚（乙烯）对苯二甲酸酯具有固有的 粘度小于0.55 dL / g。 多组分纤维能够以相对高的纤维速度，特别是至少约2000m / min的速度拉伸，并且可以用于生产微旦尼尔纤维。 纤维制品可以由多组分纤维和微旦尼尔纤维生产。 还公开了一种多组分纤维，非织造织物和微米网的方法。

    Nonwovens fabrics produced from multicomponent fibers comprising sulfopolyesters
    24.
    发明申请
    Nonwovens fabrics produced from multicomponent fibers comprising sulfopolyesters 审中-公开
    由包含磺基多聚酯的多组分纤维生产的无纺布织物

    公开(公告)号：US20080160859A1

    公开(公告)日：2008-07-03

    申请号：US11648953

    申请日：2007-01-03

    申请人： Rakesh Kumar Gupta ,  Daniel William Klosiewicz ,  Scott Ellery George

    发明人： Rakesh Kumar Gupta ,  Daniel William Klosiewicz ,  Scott Ellery George

    IPC分类号： D04H1/00 ,  D01D5/30

    CPC分类号： D01F8/14 ,  D04H1/4291 ,  D04H1/4334 ,  D04H1/435 ,  D04H1/4358 ,  D04H1/4382 ,  D04H1/49 ,  Y10T442/641

    摘要： A process for making a nonwoven fabric is provided comprising: (A) collecting multicomponent fibers to form a non-woven web; wherein the multicomponent fiber comprises at least one water dispersible sulfopolyester and at least one water non-dispersible polymer; wherein said multicomponent fiber has a plurality of domains comprising the water non-dispersible polymer; wherein the domains are substantially isolated from each other by the water dispersible sulfopolyester intervening between the domains; (B) contacting the non-woven web with water at a sufficient temperature and pressure to remove a portion of the water dispersible sulfopolyester thereby forming a microfiber web; and (C) hydroentangling the microfiber web to produce the nonwoven fabric. A process is also provided wherein steps (B) and (C) are combined. Fibrous articles utilizing the nonwoven fabrics are also provided.

    摘要翻译： 提供一种制造无纺布的方法，包括：（A）收集多组分纤维以形成无纺织物; 其中所述多组分纤维包含至少一种水分散性磺基聚酯和至少一种水不分散性聚合物; 其中所述多组分纤维具有包含水不分散性聚合物的多个结构域; 其中所述结构域通过介于所述结构域之间的水分散性磺基聚合物彼此基本上分离; （B）在足够的温度和压力下使无纺网与水接触以除去一部分水分散性磺基聚酯，从而形成超细纤维网; 和（C）水解缠绕超细纤维网以制造非织造织物。 还提供了步骤（B）和（C）组合的方法。 还提供了使用非织造织物的纤维制品。