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109 条记录 (耗时 0.028 秒)

    MIXED FIBERS AND NONWOVEN FABRICS MADE FROM THE SAME
    8.
    发明公开
    MIXED FIBERS AND NONWOVEN FABRICS MADE FROM THE SAME 有权
    VLIESSTOFFE混合纤维

    公开(公告)号：EP2179081A2

    公开(公告)日：2010-04-28

    申请号：EP08828670.3

    申请日：2008-08-01

    申请人： North Carolina State University

    发明人： POURDEYHIMI, Behnam

    IPC分类号： D01D5/36 ,  D04H3/16 ,  D04H3/10

    CPC分类号： D01D5/36 ,  D01D5/082 ,  D04H3/105 ,  D04H3/11 ,  D04H3/16 ,  Y10T442/60 ,  Y10T442/608 ,  Y10T442/609 ,  Y10T442/615 ,  Y10T442/619

    摘要： The subject matter disclosed herein relates generally to the production of a predetermined ratio of multicomponent fibers in combination with mono component fibers or other multicomponent fibers, preferably through a spun bonding process. After extrusion, these fibers can produce a fiber network that is subsequently bonded to produce a nonwoven fabric comprising multiple types of fibers. The multicomponent fibers within the network may be processed to remove one component by dissolution or to split the individual components into separate fibers. As a result, the fabric will be comprised of fibers with a range of diameters (micro- or nano-denier fibers as well as higher denier fibers) such that the fibers will not pack as tightly as in a homogeneous nonwoven fabric produced from one type of mono component or multicomponent fiber. The present invention additionally relates to methods for producing nonwoven fabrics with increased loft, breathability, strength, compressive properties, and filtration efficiency.

    METHOD AND APPARATUS FOR MAKING SUBMICRON DIAMETER FIBERS AND WEBS THERE FROM
    9.
    发明公开
    METHOD AND APPARATUS FOR MAKING SUBMICRON DIAMETER FIBERS AND WEBS THERE FROM 审中-公开
    方法及器具的纤维亚微米和网络及其制造

    公开(公告)号：EP2165011A2

    公开(公告)日：2010-03-24

    申请号：EP08772500.8

    申请日：2008-07-10

    申请人： E. I. du Pont de Nemours and Company

    发明人： SIMMONDS, Glen, E.

    IPC分类号： D01D5/30 ,  D01D5/36 ,  D01D5/098

    CPC分类号： D01D5/0985 ,  D01D5/36

    摘要： A method and device for the production of polymer filaments with a diameter of less than one micron. A plurality of polymer components are extruded through a spin pack and then attenuated using gas flows which are accelerated to achieve high velocity by means of a converging, diverging nozzle. The plurality polymer components may be extruded in an islands in the sea or segmented pie configuration. As a result of the high velocity gas flow, the plural components are split apart into their individual components resulting in filaments and fibers having a diameter or minor dimension of less than one micron.

    IMPROVED POLYOLEFIN-BASED SYNTHETIC FIBERS AND METHOD THEREFOR
    10.
    发明公开
    IMPROVED POLYOLEFIN-BASED SYNTHETIC FIBERS AND METHOD THEREFOR 有权
    合成工艺改进聚烯烃纤维及其方法

    公开(公告)号：EP1446518A4

    公开(公告)日：2005-09-07

    申请号：EP01975559

    申请日：2001-09-28

    申请人： AQUAFIL S P A

    发明人： BERTAMINI LUCA ,  PONTARIN LUIGI MARCO ,  CALDARA MAURO ,  MALLONEE WILLIAM C

    IPC分类号： D01D5/253 ,  D01F6/46 ,  D01D5/36 ,  D01F8/06 ,  D01F8/12 ,  D02G3/02

    CPC分类号： D01F6/46 ,  D01D5/253

    摘要： The invention provides a method for making fibers and yarns having improved dyeability with reactive and disperse dyes, resistance to staining and improved mechanical properties and charecteristics. The method includes blending a polyolefin polymer and a fibril forming polymer to provide a mixture of polyolefin and fibril forming polymers. The mixture is conducted to a hot melt extruder to provide a substantially homogenous molten mixture of polyolefin and fibril forming polymers. The molten mixture is forced through a spinneret having a length to diameter (L/D) ratio ranging from about 3 to about 30 to provide a fiber having a polyolefin matrix and elongate, substantially discontinuous fibrils of the fibril forming polymer dispersed into the polyolefin matrix, whereby the exterior surface of the fibers is substantially devoid of fibrils. Fibers made by the process of the invention are useful as carpet face yarn, in textiles, upholstery and other industrial applications, like chemical industry and others.