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1. 发明授权

US5794427A Process of and apparatus for making low shrinkage yarn 失效
标题翻译：制造低收缩纱线的方法和设备
公开(公告)号：US5794427A
公开(公告)日：1998-08-18
申请号：US887740
申请日：1997-07-03
申请人： Franco Cavedon , Hartmut Ritter , Martin Lohe
发明人： Franco Cavedon , Hartmut Ritter , Martin Lohe
IPC分类号： D02G3/34 , D02G1/16 , D02G1/20 , D02G3/24 , D02G3/46 , D01H13/26
CPC分类号： D02G1/20 , D02G3/46 , Y10S57/903
摘要： A process of making a low-shrinkage, air-textured yarn, in particular sewing yarn, of synthetic, pre-oriented polymer multifilaments, includes the steps of drawing multifilaments in the form of a single strand at a temperature of about 180.degree. to 230.degree. C. by a factor of 1.6 to 2.5, air-texturing the drawn strand at a rate of overfeed of 1.03 to 1.20 to form a single-strand raw yarn, feeding the raw yarn to a fluffing zone of predetermined length at a rate of overfeed of 1.003 to 1.025, winding the fluffy raw yarn at slightest possible tension, reeling off and twisting the wound raw yarn, and treating the twisted raw yarn at a temperature of 125.degree. to 135.degree. C. over 1 to 3 hours in a dyeing unit, and, optionally, dyeing the raw yarn. The process is equally applicable for making plied yarns.
摘要翻译：制造合成的预取向聚合物复丝的低收缩，空气变形纱线，特别是缝纫纱线的方法包括以下步骤：在约180°至230°的温度下拉制单丝形式的复丝以1.6至2.5的系数，以超过1.03至1.20的速率对拉伸线材进行空气变形以形成单股原丝，将原丝以预定长度的绒毛区域以过量供给1.003〜1.025，卷起松毛原纱，丝毫可能拉伸，卷起原丝并卷绕，并在125〜135℃的温度下处理绞合的原丝，染色时间为1〜3小时单元，并且可选地染色原纱。该方法同样适用于制造合股纱线。

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