发明授权
- 专利标题： Spontaneously crimping synthetic composite filament and process of manufacturing the same
- 专利标题（中）： 自发制造合成复合纤维及其制造方法
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申请号： US3718534D申请日： 1970-03-26
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公开(公告)号： US3718534A公开(公告)日： 1973-02-27
- 发明人: OKAMOTO M , WATANABE K
- 申请人： TORAY INDUSTRIES
- 专利权人： Toray Industries
- 当前专利权人： Toray Industries
- 优先权： JP2238169 1969-03-26
- 主分类号： D01D5/30
- IPC分类号： D01D5/30 ; B29F3/10 ; D02G3/00
摘要：
A SPONTANEOUSLY CRIMPING SYNTHETIC COMPOSITE FILAMENT HAVING SILK-LIKE HAND FEEL AND SHEEN COMPRISES AT LEAST TWO SYNTHESIS POLYMERIC FILAMENTARY CONSTITUENTS WHICH ARE DIFFERENT FROM EACH OTHER AND ECCENTRICALLY INCORPORATED INTO A FILAMENT BODY AND HAS A FINENESS NOT EXCEEDING 2.0 DENIER. THE COMPOSITE FILAMENT IS MANUFACTURED USING A PROCESS COMPRISING (1) PREPARING A PLURALITY OF COMPOSITE STREAMS EACH OF WHICH IS CMPOSED OF AT LEAST TWO POLYMERIC CONSTITUENTS STREAMS ECCENTRICALLY INCORPORATED, (2) UNITING THE COMPOSITE STREAMS WITH A POLYMERIC STREAM INTO A COMPLEX CONJUGATE STREAM IN WHICH THE UNITING STREAM FILLS UP SPACES BETWEEN THE COMPOSITE STREAMS, (3) SPINNING THE COMPLEX CONJUGATE STREAM INTO A FILAMENT FORM, AND (4) REMOVING THE UNITING CONSTITUENT IN ORDER TO OBTAIN THE COMPOSITE FILAMENTS. THE INVENTION INCLUDES A COMPLEX CONJUGATE FILAMENT INTERMEDIATELY OBTAINED IN THE ABOVE-STATED PROCESS. THE COMPLEX CONJUGATE FILAMENT IS COMPOSED OF A PLURALITY OF COMPOSITE FILAMENTARY SEGMENTS AND A UNITING CONSTITUENT WHICH IS REMOVABLE.