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1. 发明授权

US3967441A Yarns and process for production thereof 失效
标题翻译：纱线及其制造方法
公开(公告)号：US3967441A
公开(公告)日：1976-07-06
申请号：US464878
申请日：1974-04-29
申请人： Katsumi Yasuzuka , Takaaki Matsuo , Hachiro Fujiwara
发明人： Katsumi Yasuzuka , Takaaki Matsuo , Hachiro Fujiwara
IPC分类号： D02G1/02 , D01G1/08 , D02G3/22 , D02G3/42 , D02G3/00 , D01G1/06 , D01H5/30 , D02G1/00
CPC分类号： D02G3/22 , D01G1/081
摘要： A yarn comprising thermoplastic synthetic staple fibers or thermoplastic synthetic staple fibers and continuous filaments, in which the individual fibers constituting the yarn contain twisted crimps and having cross-sectional surfaces with a markedly flattened portion, in which the staple fibers contained therein have broken ends comprising mainly portions flattened to a lesser degree, a plurality of fibers having this structure uniformly and alternately forming the surface and inner layers of the yarn and being intertwined in a truly twisted state or in a substantially non-twisted state at fluffs formed of the broken ends of the individual fibers, and a process for producing a yarn which comprises drawing an undrawn yarn comprising multifilaments of a thermoplastic synthetic polymer and having substantially the same break elongation, in a twisted state at an elevated temperature thereby to remarkably flatten portions of the individual filaments which appear on the outer layer of the yarn, and immediately detwisting the yarn to break a part or all of those portions of the filaments which are flattened to a lesser degree, followed by taking up the yarn.
摘要翻译：一种包含热塑性合成短纤维或热塑性合成短纤维和连续长丝的纱线，其中构成纱线的单根纤维含有扭曲的卷曲并且具有显着扁平部分的横截面，其中包含其中的短纤维具有断裂端，包括主要部分平坦化，多个具有这种结构的纤维均匀地并且交替地形成纱线的表面和内层，并且以真实扭曲状态或基本上非扭转状态缠绕在由断裂端形成的绒毛处的单根纤维，以及一种生产纱线的方法，其包括在高温下以扭曲状态拉伸包含热塑性合成聚合物的复丝并具有基本相同的断裂伸长率的未拉伸丝，从而显着平坦化各个长丝的部分它出现在y的外层并立即将纱线绞合以将一部分或全部长丝的部分或全部破碎得较小，然后卷起纱线。

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