Fiber structures of split multicomponent fibers and process therefor
    72.
    发明授权
    Fiber structures of split multicomponent fibers and process therefor 失效
    分裂多组分纤维的纤维结构及其工艺

    公开(公告)号:US4361609A

    公开(公告)日:1982-11-30

    申请号:US169541

    申请日:1980-07-17

    摘要: Fibrillatable multicomponent fibers of the matrix segment type and a process for production of fiber structures by splitting shrinkable, basically unset, multi-component fibers consisting of at least two incompatible components which in the fiber cross section are arranged in the form of a matrix and several segments, the latter accounting for about 20% to 80% of the total cross section. After having been processed into fiber structures such as staple fibers, yarns or fabrics, the multicomponent fibers are treated with a liquid or gaseous organic solvent, particularly chlorinated lower alkanes, to partially or completely split the segment filaments from the matrix component. Useful solvents are those which will reduce the zero-shrinkage temperature of the matrix or the segment polymer by at least 160.degree. C. and in which the polymer components constituting the fiber show different shrinkage behavior. Splitting may be further enhanced by the application of mechanical agitation, e.g. by ultrasonic waves. Fabrics made from the multicomponent fibers may be woven, knitted, non-woven, flocked and three-dimensional.

    摘要翻译: 基质片段的可纤维化的多组分纤维以及由纤维横截面中至少两个不相容的组分组成的可收缩的,基本上未设定的多组分纤维来生产纤维结构的方法以矩阵形式排列成几个 段占总截面的20%〜80%左右。 在被加工成诸如短纤维,纱线或织物的纤维结构之后,多组分纤维用液体或气态有机溶剂,特别是氯化的低级烷烃处理,以将部分纤维从基质组分部分或完全分裂。 有用的溶剂是将基质或段聚合物的零收缩温度降低至少160℃的溶剂,其中构成纤维的聚合物组分显示出不同的收缩行为。 可以通过施加机械搅拌来进一步增强分裂。 通过超声波。 由多组分纤维制成的织物可以是编织,针织,非织造,植绒和三维织物。

    Mixed filaments
    73.
    发明授权
    Mixed filaments 失效
    混合长丝

    公开(公告)号:US3968307A

    公开(公告)日:1976-07-06

    申请号:US366516

    申请日:1973-06-04

    IPC分类号: D01D5/28 D01D5/30

    摘要: Multi-component mixed filament, wherein at least two spinning materials having poor affinity are mixed and dispersed in unitary filament in a nebular configuration containing at least 50 stars at least in one portion of the cross-section of the filament and the nebular configuration continues substantially in the longitudinal direction of the filament is manufactured by subjecting said spinning materials to at least eight times of "joining and dividing step in different phase" repeatedly to layer-multiply said spinning materials so as to form a nebular configuration in the cross-section of the resulting filament and then extruding the resulting mixture from orifice in a spinneret. In this manufacture, the preferable combinations of said two spinning materials having poor affinity are polyamide-polyester, polyamide-polyalkylne oxide, polyester-polyalkylene oxide and polyamide-polyolefin.

    摘要翻译: 多组分混合长丝,其中具有差的亲和性的至少两种纺丝材料以单丝状态混合并分散在包含至少50颗至少一半的细丝横截面部分中的至少50颗星的星形结构中,并且星云形状基本上持续 通过将所述纺丝材料重复地进行至少八次“不同相的接合分离步骤”来制造,以使所述纺丝材料层叠,从而在横截面中形成星云形状 然后将所得到的细丝从孔中挤出所得到的混合物。 在该制造中,亲和性差的所述两种纺丝材料的优选组合是聚酰胺 - 聚酯,聚酰胺 - 聚烷基氧化物,聚酯 - 聚环氧烷和聚酰胺 - 聚烯烃。

    Novel polyamide multisegmented unitary fiber
    74.
    发明授权
    Novel polyamide multisegmented unitary fiber 失效
    新型聚酰胺多元纤维

    公开(公告)号:US3684647A

    公开(公告)日:1972-08-15

    申请号:US3684647D

    申请日:1970-03-31

    IPC分类号: D01F8/12 D01D5/28

    摘要: A NOVEL POLYAMIDE MULTISEGMENTED UNITARY FIBER HAVING AN EXCELLENT ANTISTATIC PROPERTY WHICH COMPRISES AT LEAST TWO DIFFERENT POLYAMIDES IN THE FORM OF ADHERENT FINE MULTISEGMENTS WHICH ARE DISPOSED IN AN INTERMINGLED RELATIONSHIP WITH EACH OTHER IN AN ARIBITRARY CROSS SECTION OF THE UNITARY FIBER, AND WHICH EXTEND SUB-TANTIALLY CONTINUOUSLY ALONG THE LONGITUDINAL AXIS OF THE UNITARY FIBER AND OCCUPY AT LEAST A PART OF A PERIPHERY OF THE UNITARY FIBER,

    ONE OF THE POLYAMIDES HAVING A CHARGEABLE PROPERTY WITH POSITIVE TRIBOELECTRICITY AND THE OTHER POLYAMIDE HAVING A CHARGEABLE PROPERTY WITH NEGATIVE TRIBOELECTRICITY.

    Interfacial surface generators
    77.
    发明授权
    Interfacial surface generators 失效
    界面发生器

    公开(公告)号:US3583678A

    公开(公告)日:1971-06-08

    申请号:US3583678D

    申请日:1969-09-15

    申请人: DOW BADISCHE CO

    发明人: HARDER RICHARD E

    CPC分类号: B01F5/0644

    摘要: Interfacial surface generating means are disclosed which have an inlet end adapted to receive fluid, and outlet end adapted to discharge fluid, and a plurality of separate passage ways connecting the inlet end and outlet end, the passage ways opening (1) on the inlet end essentially along a first line lying approximately through the center of the inlet end and (2) on the outlet end essentially along a second line lying approximately through the center of the outlet end the second line being essentially normal to the first line. A plurality of the generating means can be used in series to make an interfacial surface generator which will produce many layers within a stream.