Method for manufacturing filaments of viscose
    3.
    发明授权
    Method for manufacturing filaments of viscose 失效
    制造粘胶纤维的方法

    公开(公告)号:US4126656A

    公开(公告)日:1978-11-21

    申请号:US794584

    申请日:1977-05-06

    CPC分类号: D01D5/04 D01F2/06 D01F2/22

    摘要: A method for manufacturing viscose filaments from a cellulosic starting material wherein a viscose is prepared from the cellulosic starting material, the viscose is extruded by passing it through a spinneret to form continuous thin strands, the extruded strands are passed continuously through a gaseous medium which contains at least one volatile agent of such a nature, and under such conditions, that a coagulating action on the said strands results, the strands which have thus been coagulated are then brought into contact with an acid medium which causes a pre-regeneration of the initial cellulose, so that the strands are converted to continuous filaments, and the filaments are passed through at least one other acid liquid medium which causes ultimate regeneration of the cellulose.