Method for producing ultrafine fiber and artificial leather
    1.
    发明授权
    Method for producing ultrafine fiber and artificial leather 失效
    超细纤维和人造革生产方法

    公开(公告)号:US07025915B2

    公开(公告)日:2006-04-11

    申请号:US10393777

    申请日:2003-03-21

    IPC分类号: D01D5/36 D04H3/02 D04H3/10

    摘要: A method for producing an artificial leather includes mixed spinning an island polymer and a sea polymer having a different dissolving property from that of the island polymer at a predetermined temperature, producing a non-woven substrate from the fiber obtained, immersing the non-woven substrate into a polymer, dissolving and removing the sea polymer in the non-woven substrate to obtain an artificial leather as a semi-finished product, and polishing the surface of the artificial leather to obtain an artificial leather having excellent dyeability and advanced fluff-like property. The ratio of melt flow index of the sea polymer to relative viscosity of the island polymer is about 20 to about 55, in which the relative viscosity of the island polymer is about 2.7 to about 3.5 and the weight percentage of the sea polymer relative to the sum of the sea polymer and the island polymer is about 30% to about 70%.

    摘要翻译: 制造人造革的方法包括在预定温度下将岛聚合物和岛聚合物的溶解性不同的海聚合物混合,由所得纤维制成无纺基材,将无纺基材 在聚合物中溶解除去海绵状聚合物,得到作为半成品的人造革,对人造革的表面进行研磨,得到染色性和绒毛状特性优异的人造革 。 海聚合物的熔体流动指数与岛聚合物的相对粘度的比率为约20至约55,其中岛聚合物的相对粘度为约2.7至约3.5,并且海聚合物相对于 海聚合物和岛聚合物的总和为约30%至约70%。