发明名称 |
IMPROVEMENTS IN POLYESTER FILAMENTS, YARNS AND TOWS |
摘要 |
Air-jet texturing with drawing, especially cold-drawing, or hot-drawing or other heat-treatments of spin-oriented crystalline polyester filaments, and particularly polyester feed yarns, that have been prepared by spinning at speeds of, e.g., 4 km/min, and have low shrinkage and no natural draw ratio in the conventional sense, provides useful technique for obtaining uniform drawn filaments of desired denier and thereby provides improved flexibility to obtain air-jet textured filaments and yarns of various denier. The resulting yarns have useful properties that are improved in certain respects. |
申请公布号 |
WO9310293(A1) |
申请公布日期 |
1993.05.27 |
申请号 |
WO1991US08381 |
申请日期 |
1991.11.18 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
HENDRIX, JOHN, PAUL, JR.;KNOX, BENJAMIN, HUGHES;NOE, JAMES, BENNETT |
分类号 |
D01F6/62;D02J1/22 |
主分类号 |
D01F6/62 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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