公开(公告)号：US5028369A

公开(公告)日：1991-07-02

申请号：US409698

申请日：1989-09-20

申请人： Ulrich Reinehr ,  Gunter Turck ,  Egon Kunzel ,  Dieter Paulini ,  Dieter Heinkes

发明人： Ulrich Reinehr ,  Gunter Turck ,  Egon Kunzel ,  Dieter Paulini ,  Dieter Heinkes

IPC分类号： D01F6/54 ,  D01D5/04 ,  D01F8/08 ,  D01G1/04

CPC分类号： D01F8/08

摘要： A process for the discontinuous or (preferably) continuous production of dry spun hydrophilic acrylic fibers and threads with a core/sheath structure which have improved color fastness properties, more uniform cross-sections and better processing characteristics. By employing a new after-treatment combination of more intensive counterflow washing, stretching in steam, fixing in steam and careful drying of the fibers as staple fibers, improved hydrophilic fibers with a water retention capacity above 30% can be obtained from spinning solutions which have a much lower non-solvent content than is necessary in the present-state of the art for obtaining a high water retention capacity of the order indicated above.

摘要翻译： 用于不连续或（优选）连续生产具有改善的色牢度特性，更均匀的横截面和更好的加工特性的具有芯/鞘结构的干纺亲水丙烯酸纤维和线的方法。 通过采用更强烈的逆流洗涤，蒸汽拉伸，蒸汽固定和纤维仔细干燥作为短纤维的新的后处理组合的新的后处理组合，可以从具有30％以上的纺丝溶液获得具有30％以上的改善的亲水性纤维， 比现有技术中所需的低得多的非溶剂含量，以获得上述顺序的高保水能力。