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    Device for producing Lyocell fibers
    1.
    发明授权
    Device for producing Lyocell fibers 有权
    用于生产Lyocell纤维的装置

    公开(公告)号：US08317503B2

    公开(公告)日：2012-11-27

    申请号：US12776737

    申请日：2010-05-10

    申请人： Stefan Zikeli ,  Michael Longin

    发明人： Stefan Zikeli ,  Michael Longin

    IPC分类号： B29C47/92 ,  D01D5/06 ,  D01F2/02

    CPC分类号： D01F2/00 ,  B29C47/0014 ,  B29C47/8895 ,  B29C47/92 ,  B29C2947/92314 ,  B29C2947/92409 ,  B29C2947/92809 ,  B29C2947/92904 ,  C08B1/003 ,  D01D1/02 ,  D01D5/06

    摘要： A device for producing Lyocell fibers which are extruded from a cellulose solution of water, cellulose and tertiary amine oxide in a spinning head (25). The cellulose solution is obtained in a number of process steps directly from the cellulose (3, 4) or with the formation of a cellulose suspension. Since the degree of polymerization decreases in the course of processing the cellulose through to its extrusion in the cellulose solution, with the processing of celluloses with a low degree of polymerization there is the risk that the endless molded bodies (2) extruded in the spinning head (25) exhibit defective quality. In order to also be able to process celluloses (3, 4) with a low degree of polymerization without having to accept reduced quality, according to the invention, the residence time of the cellulose from its introduction into the device (1) through to the extrusion of the cellulose (3, 4) in the cellulose solution is set in dependence of the degree of polymerization of the cellulose, of the cellulose suspension and/or of the cellulose solution.

    摘要翻译： 一种用于生产从纺丝头（25）中的水，纤维素和叔胺氧化物的纤维素溶液挤出的莱赛尔纤维的装置。 纤维素溶液在直接由纤维素（3,4））或纤维素悬浮液的形成的多个工艺步骤中获得。 由于在将纤维素加工成在纤维素溶液中挤出的过程中聚合度降低，由于聚合度低的纤维素的加工存在在纺丝头中挤出的环形成型体（2）的风险 （25）品质不佳。 为了也能够以低聚合度处理纤维素（3,4），而不必接受质量降低，根据本发明，纤维素从其引入到装置（1）中的停留时间到达 依赖于纤维素，纤维素悬浮液和/或纤维素溶液的聚合度，将纤维素（3,4）挤出在纤维素溶液中。