发明授权
- 专利标题： False twisted yarn of polyester composite fiber and method for production thereof
- 专利标题（中）： 聚酯复合纤维的假捻纱及其制造方法
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申请号： US10122296申请日： 2002-04-16
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公开(公告)号： US06689461B2公开(公告)日： 2004-02-10
- 发明人: Tadashi Koyanagi , Takao Abe , Teruhiko Matsuo , Mitsuyuki Yamamoto
- 申请人： Tadashi Koyanagi , Takao Abe , Teruhiko Matsuo , Mitsuyuki Yamamoto
- 优先权： JP2001-117915 20010417; JP2001-328870 20011026; JP2001-356975 20011122; JP2002-031639 20020208
- 主分类号： D01F600
- IPC分类号： D01F600
摘要：
The invention provides false twisted yarn of a polyester composite fiber characterized in that the fiber is composed of single-filaments which are laminated with two types of polyester components in a side-by-side or eccentrical core/sheath fashion, at least one of the two polyester components is poly(trimethylene terephthalate), the difference in intrinsic viscosity between the two polyester components is 0.05-0.9 (dl/g), and the false twisted yarn has latent crimpability and has at least 50% stretching elongation of developed crimps prior to boiling water treatment.