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25 条记录 (耗时 0.021 秒)

    Method for the production of spun bonded nonwoven fabrics having a uniform structure
    21.
    发明授权
    Method for the production of spun bonded nonwoven fabrics having a uniform structure 失效
    用于生产具有均匀结构的纺粘非织造织物的方法

    公开(公告)号：US4753698A

    公开(公告)日：1988-06-28

    申请号：US919849

    申请日：1986-10-16

    申请人： Ludwig Hartmann ,  Gerhard Muller

    发明人： Ludwig Hartmann ,  Gerhard Muller

    IPC分类号： D04H3/03 ,  D04H3/05 ,  D04H3/16

    CPC分类号： D04H3/16 ,  D04H3/03

    摘要： Disclosed is a method for producing spun bonded nonwoven fabrics which have a highly uniform fleece structure and a uniform weight per unit area. In the method, a plurality of linear ranks of filaments, disposed side by side are spun from a plurality of long spinnerets. The filaments are aerodynamically drawn downward, stretched, and then fixed on a moving screen. The linear ranks of filaments are deflected and set in a pendular movement. The ranks are carried on an air cushion on the moving screen through a spreading section in which the ranks of filaments are turned around and laid down in a criss-crossing and substantially loop-like manner, and are fixed on the screen by vacuum.

    摘要翻译： 公开了一种具有高度均匀的羊毛结构并且每单位面积重均匀的纺粘非织造织物的方法。 在该方法中，并列设置的多根线状丝线从多根长喷丝头纺出。 细丝在空气动力学上向下拉伸，拉伸，然后固定在移动的筛网上。 线的线性排列偏转并设置在摆动运动中。 行星通过扩展部分在活动屏幕上的气垫上承载，其中细丝的排列以交叉和基本上环状的方式转动并放置，并通过真空固定在屏幕上。

    Spun non-woven fabrics with high dimensional stability, and processes for their production
    24.
    发明授权
    Spun non-woven fabrics with high dimensional stability, and processes for their production 失效
    旋转具有高尺寸稳定性的无纺布及其生产工艺

    公开(公告)号：US4363845A

    公开(公告)日：1982-12-14

    申请号：US252024

    申请日：1981-04-08

    申请人： Ludwig Hartmann

    发明人： Ludwig Hartmann

    IPC分类号： D04H3/011 ,  D04H3/12 ,  D04H3/14 ,  D04H3/16 ,  D04H1/58

    CPC分类号： D04H3/12 ,  D04H3/011 ,  D04H3/14 ,  D04H3/16 ,  Y10S428/904 ,  Y10T428/24826 ,  Y10T442/608 ,  Y10T442/681

    摘要： Non-woven fabrics made from spun, synthetic polymer filaments and composed of several superposed layers of interbonded monofilaments and multifilament strands deposited in a tangled form; at least segments of the individual filaments of the multifilament strands being disposed parallel to one another with total or partial bonding together of the parallel filaments, and the individual filaments and the multifilament strands being bonded together at least at the points of their random crossings.

    摘要翻译： 由旋转的合成聚合物长丝制成的无纺织物，并且以缠结形式沉积的多个相互连接的单丝和多丝线的重叠层组成; 复丝线的单根细丝的至少片段彼此平行地设置，并且将平行长丝全部或部分粘合在一起，并且至少在其随机交叉点处将各单丝和多丝股线结合在一起。

    Non-woven fabrics of polyolefin filament and processes of production thereof
    25.
    发明授权
    Non-woven fabrics of polyolefin filament and processes of production thereof 失效
    聚烯烃长丝的无纺布及其生产方法

    公开(公告)号：US4304234A

    公开(公告)日：1981-12-08

    申请号：US135699

    申请日：1980-03-31

    申请人： Ludwig Hartmann

    发明人： Ludwig Hartmann

    IPC分类号： A61F13/15 ,  A61F13/20 ,  A61F13/49 ,  A61F13/511 ,  A61F13/53 ,  D04H3/007 ,  D04H3/12 ,  D04H3/14 ,  D04H3/153 ,  D04H3/16 ,  D06M15/53 ,  D06M101/00 ,  D06M101/16 ,  D06M101/18 ,  D04H1/58

    CPC分类号： D04H3/007 ,  D04H3/14 ,  D04H3/153 ,  D04H3/16 ,  Y10S604/904 ,  Y10T428/24826 ,  Y10T442/635 ,  Y10T442/66 ,  Y10T442/69

    摘要： Spun, non-woven fabrics from bonded polyolefin filaments deposited in a random fashion and comprising individual filaments and filament groups of at least two parallelized individual filaments, and at least a portion of the individual filaments and filament groups are modified by polar groups in ethylene oxide and/or propylene oxide adducts, added in the nature of fibrillae on the filament or filament group surfaces or by surface treatment thereof with ethylene oxide adducts of propylene oxide block polymers with at least 20% by weight of ethylene oxide; and processes for the production of such spun, non-woven fabrics wherein the polyolefin filaments are extruded from a multiplicity of spinnerets, which are then deposited in random fashion as a mixed fleece of individual and groups of parallelized filaments and wherein, during or after extrusion, adducts of the propylene oxide and/or of the ethylene oxide are added to the filaments and/or filament groups, after which the mixed fleece thus produced is bonded by autogenous bonding.

    摘要翻译： 来自粘结聚烯烃长丝的无纺织物以随机方式沉积并且包含至少两个平行化单独长丝的单丝和长丝组，以及至少一部分单丝和长丝基团的环氧乙烷中的极性基团改性 和/或环氧丙烷加成物，其在纤维或丝群表面上的原纤维性质中加入，或通过用环氧丙烷嵌段聚合物与至少20重量％的环氧乙烷的环氧乙烷加合物进行表面处理而加入; 以及用于生产这种纺丝非织造织物的方法，其中聚烯烃长丝从多个喷丝头挤出，然后以随机方式将它们作为单独的和平行化的长丝的组合混合，并且其中在挤出期间或之后 ，将环氧丙烷和/或环氧乙烷的加成物加入到长丝和/或长丝组中，然后通过自生键合结合如此制备的混合羊毛。