Extrusion head for generating filaments, extrusion installation and method using said extrusion head

    公开(公告)号:US10472737B2

    公开(公告)日:2019-11-12

    申请号:US15190719

    申请日:2016-06-23

    摘要: The present invention relates to an extrusion head for generating filaments, extrusion installation and method using said extrusion head, the extrusion head comprising an inlet for the introduction by pressure of a solvent and polymer solution, and an extrusion plate provided with extrusion nozzles configured for forming filaments from the solvent and polymer solution, where the inlet is in fluid communication with a laminar chamber through which the solvent and polymer solution circulates to a peripheral chamber from which it is radially distributed into a central chamber in which the extrusion plate is arranged, and where the laminar chamber is in fluid communication with an excess solvent outlet, and the central chamber is in fluid communication with an excess solution outlet.

    PROCESS TO MANUFACTURE A SPUN-DYED PARA-ARAMID FILAMENT YARN AND A SLIVER, SLIVER, STAPLE FIBER YARN AND TEXTILE FABRIC
    5.
    发明申请
    PROCESS TO MANUFACTURE A SPUN-DYED PARA-ARAMID FILAMENT YARN AND A SLIVER, SLIVER, STAPLE FIBER YARN AND TEXTILE FABRIC 有权
    制造SPUN-DYED PARA-ARAMID FILAMENT YARN和SLIVER,SLIVER,STAPLE FIBER YARN和TEXTILE FABRIC的方法

    公开(公告)号:US20160273132A1

    公开(公告)日:2016-09-22

    申请号:US15034903

    申请日:2014-11-18

    摘要: Manufacturing a spun-dyed para-aramid filament yarn includes (a) preparing a spin dope comprising a para-aramid polymer, at least one dyestuff and concentrated sulfuric acid, (b) spinning the spin dope through a spinneret to obtain spun filaments, (c) coagulating the spun filaments to obtain coagulated filaments, (d) neutralizing the coagulated filaments to obtain neutralized filaments, (e) washing the neutralized filaments to obtain washed filaments, and (f) drying the washed filaments to obtain dried filaments. In step a) the spin dope includes 17.5 to 18.5% by weight of a para-aramid polymer with respect to the weight of the spin dope, and 4 to 15% by weight of the at least one dyestuff with respect to the weight of the para-aramid polymer plus the at least one dyestuff. In step f) the filaments are hold under a tension in a range from 0.2 to 0.8 cN/dtex.

    摘要翻译: 制造纺丝对位芳族聚酰胺长丝纱线包括(a)制备包含对位芳族聚酰胺聚合物,至少一种染料和浓硫酸的纺丝原液,(b)通过喷丝头纺丝纺丝原液以获得纺丝丝( c)使纺丝的细丝凝固以获得凝固的长丝,(d)中和凝固的长丝以获得中和的长丝,(e)洗涤中和的长丝以获得洗涤的长丝,和(f)干燥洗涤的长丝以获得干燥的长丝。 在步骤a)中,纺丝原液包含17.5-18.5重量%的对位芳族聚酰胺聚合物相对于纺丝原液的重量,和4至15重量%的至少一种染料相对于 对位芳族聚酰胺加上至少一种染料。 在步骤f)中,长丝保持在0.2至0.8cN / dtex的范围内的张力。

    APPARATUS FOR PRODUCING MONOFILAMENTS OR RIBBONS
    8.
    发明申请
    APPARATUS FOR PRODUCING MONOFILAMENTS OR RIBBONS 审中-公开
    用于生产单体或饼干的装置

    公开(公告)号:US20110318442A1

    公开(公告)日:2011-12-29

    申请号:US13203961

    申请日:2010-03-08

    IPC分类号: B28B7/38 D01D10/04

    摘要: The invention relates to an apparatus for producing monofilaments or ribbons which are guided in parallel through several treatment devices in an extrusion process. For this purpose, an extrusion device is connected downstream in several treatment device, wherein for guiding the monofilaments or ribbons at least one rod-shaped guide element is provided which has a contact surface for guiding the ribbons or monofilaments. In order to enable low-friction and wear-resistant guidance, in particular when using very elastic monofilaments or ribbons, the contact surface has a multiple coating comprising several coating materials that are applied in several single coatings, each with a different layer thicknesses, wherein the single coatings are formed in a sandwich-like manner on the contact surface.

    摘要翻译: 本发明涉及一种用于生产单丝或丝带的装置,其通过几个处理装置在挤压过程中平行地引导。 为此,挤出装置连接在几个处理装置的下游,其中为了引导单丝或带,提供了至少一个棒状引导元件,其具有用于引导条带或单丝的接触表面。 为了实现低摩擦和耐磨引导,特别是当使用非常弹性的单丝或带时,接触表面具有多个涂层,其包括多个涂覆材料,其涂覆在几个单个涂层中,每个具有不同的层厚度,其中 单个涂层以夹层状的方式形成在接触表面上。

    Heat transfer
    9.
    发明授权
    Heat transfer 失效
    传播热量

    公开(公告)号:US4138840A

    公开(公告)日:1979-02-13

    申请号:US766313

    申请日:1977-02-07

    CPC分类号: D02J13/00 D02G1/0266

    摘要: Process and apparatus for transferring heat between an advancing filamentary yarn and a fluid in which the yarn is passed through a vortex in the fluid substantially along or parallel to the longitudinal axis of the vortex.

    摘要翻译: 用于在推进的丝状纱线和流体之间传递热量的方法和装置,其中纱线基本上沿着或平行于涡流的纵向轴线流过流体中的涡流。

    Transfer of heat between two bodies
    10.
    发明授权
    Transfer of heat between two bodies 失效
    两个体之间的热传递

    公开(公告)号:US4055220A

    公开(公告)日:1977-10-25

    申请号:US60371

    申请日:1970-08-03

    申请人: Willem Stelwagen

    发明人: Willem Stelwagen

    摘要: This invention is directed to a method and apparatus for transferring heat between two bodies separated by a narrow space and movable relative to each other, the temperature of one body dependent upon the temperature of the other body.

    摘要翻译: 本发明涉及一种用于在两个物体之间传递热的方法和装置,所述两个物体由狭窄的空间分开并相对于彼此移动,一个体的温度取决于另一个体的温度。