Spinneret device for conjugate melt-blow spinning
    23.
    发明授权
    Spinneret device for conjugate melt-blow spinning 失效
    用于共轭熔体纺丝的喷丝装置

    公开(公告)号:US5511960A

    公开(公告)日:1996-04-30

    申请号:US032325

    申请日:1993-03-17

    Abstract: A spinneret device for side-by-side, conjugate melt-blow spinning can correspond to combinations of various heterogeneous polymers for conjugate spinning and is uniform in the conjugate state such as conjugate ratio between single fibers, the proportion of the peripheral percentage of both the components in the fiber cross-section, etc. and has fineness, a large nozzle plate width and a superior productivity. The device is composed mainly of a spinning resin-feeding plate; a distributing plate; a separating plate provided with confluent grooves of conjugate components engraved at the bottom part of the plate, corresponding in number to the spinning nozzles; a nozzle plate; and a plate for controlling the clearance for a gas. Even when the viscosity unevenness, spinning temperature unevenness, etc. of the spinning resins occur in the cavity of the nozzle plate to some extent, microfine fibers can be obtained which are uniform in the composite ratio and the cross-sectional, peripheral percentages of the respective components in the fiber cross-section, while being uniformly fine.

    Abstract translation: 用于并列共轭熔体纺丝的喷丝头装置可以对应于用于共轭纺丝的各种异种聚合物的组合,并且在共轭状态下是均匀的,例如单纤维之间的共轭比,两者的外围百分比 纤维横截面中的部件等,并且具有细度,大的喷嘴板宽度和优异的生产率。 该装置主要由纺纱树脂进料板组成; 分配板; 分离板,其设置有与所述纺丝喷嘴相对应的在所述板的底部刻有的共轭组分的汇合槽; 喷嘴板; 以及用于控制气体间隙的板。 即使纺丝树脂的粘度不均匀性,纺丝温度不均匀等发生在喷嘴板的空腔中,也可以获得在复合比例和横截面外周百分比 纤维横截面中的各个部件,同时均匀。

    Multicomponent cross-section fiber
    24.
    发明授权
    Multicomponent cross-section fiber 失效
    多组分横截面纤维

    公开(公告)号:US5458972A

    公开(公告)日:1995-10-17

    申请号:US317985

    申请日:1994-10-04

    Applicant: Gerry A. Hagen

    Inventor: Gerry A. Hagen

    Abstract: A method of producing a multicomponent trilobal fiber includes providing a trilobal capillary defining three legs, three apexes and an axial center, directing a first molten polymer composition to the axial center and presenting a second molten polymer composition to at least one of the apexes. The fiber produced has a trilobal core defining an outer core surface and a sheath abutting at least about one-third of the outer core surface.

    Abstract translation: 制备多组分三叶形纤维的方法包括提供限定三条腿,三个顶点和一个轴向中心的三叶形毛细管,将第一熔融聚合物组合物引导到轴向中心,并将第二熔融聚合物组合物呈现至至少一个顶点。 所生产的纤维具有限定外芯表面的三叶形芯和与外芯表面的至少约三分之一相邻的护套。

    Wholly aromatic polyamide fibers and composite fibers, process for
production thereof and use thereof
    27.
    发明授权
    Wholly aromatic polyamide fibers and composite fibers, process for production thereof and use thereof 失效
    全芳族聚酰胺纤维和复合纤维,其制备方法和用途

    公开(公告)号:US4751760A

    公开(公告)日:1988-06-21

    申请号:US854839

    申请日:1986-04-23

    Applicant: Susumu Norota

    Inventor: Susumu Norota

    Abstract: A stretchable wholly aromatic polyamide fiber which (A) is composed of a wholly aromatic polyamide containing at least 85 mole %, based on the entire recurring units, of m-phenylene isophthalamide units as a main component, (B) does not substantially contain an aprotic polar solvent, (C) has an average denier size of 50 to 50,000, (D) when stretched to two times at the glass transition temperature of the wholly aromatic polyamide, has a maximum heat shrinkage under a fixed load of at least 30%.A stretched wholly aromatic polyamide fiber which has the same properties with (A), (B) and (C), and (D) has a maximum heat shrinkage under a fixed load of at least 20% and (E) is substantially amorphous.The present invention provides a stretchable and stretched wholly aromatic polyamide composite fiber containing inorganic pieces and processes for preparing the above fibers.

    Abstract translation: 一种可拉伸的全芳族聚酰胺纤维,其中(A)由基于全部重复单元的至少85摩尔%的以间亚苯基间苯二酰胺单元为主要成分的全芳族聚酰胺构成,(B)基本上不含有 非质子极性溶剂(C)的平均旦尼尔尺寸为50〜50,000,(D)在全芳香族聚酰胺的玻璃化转变温度下拉伸2次时,固定载荷下的最大热收缩率为30%以上, 。 与(A),(B)和(C)和(D)具有相同性质的拉伸全芳族聚酰胺纤维在固定载荷下具有至少20%的最大热收缩率,(E)基本上是无定形的。 本发明提供了一种包含无机片的可拉伸和拉伸的全芳族聚酰胺复合纤维和制备上述纤维的方法。

    Self-texturing nylon yarn spinning process
    28.
    发明授权
    Self-texturing nylon yarn spinning process 失效
    自织尼龙纱线纺纱工艺

    公开(公告)号:US4619803A

    公开(公告)日:1986-10-28

    申请号:US633313

    申请日:1984-07-23

    Applicant: Jing-peir Yu

    Inventor: Jing-peir Yu

    CPC classification number: D01D5/22 D01D5/32

    Abstract: A self-crimping filament is formed in high-speed spinning by joining hot and cool molten substances of a single polymer substantially at or preferably below the face of the spinneret. This increases the bulk of a yarn containing such filaments.

    Abstract translation: 通过将基本上在或优选低于喷丝头表面的单一聚合物的热和冷熔融物质接合在高速纺丝中形成自卷曲长丝。 这增加了含有这种细丝的纱线的体积。

    Apparatus for producing composite fibers
    30.
    发明授权
    Apparatus for producing composite fibers 失效
    用于生产复合纤维的装置

    公开(公告)号:US3669591A

    公开(公告)日:1972-06-13

    申请号:US3669591D

    申请日:1970-03-11

    Applicant: SNAM PROGETTI

    CPC classification number: B29C47/30 B29C47/0014 B29C47/04 D01D5/32

    Abstract: A SPINNING HEAD FOR MELT SPINNING OF COMPOSITE FILAMENTS COMPRISED OF TWO POLYMERS OF EQUAL SEMI-CIRCULAR CROSS-SECTION IN WHICH THE MATING FACES OF A DISTRIBUTION PLATE AND A SPINNERET PLATE FORM TWO SEPARATE ANNULAR CAVITIES EACH COMMUNICATING WITH A DIFFERENT POLYMER SUPPLY CONTAINED IN THE DISTRIBUTION PLATE. A PLURALITY OF EXTRUSION HOLES IN THE SPINNERET PLATE HAVE THEIR UPPER END PORTIONS OF SEMI-CIRCULAR CROSS-SECTION COMMUNICATION WITH ONE OF THE ANNULAR CAVITIES AND THE REMAINING PORTIONS OF CIRCULAR CROSS-SECTION COMMUNICATING WITH THE OTHER ANNULAR CAVITY.

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