发明名称 |
TEXTURED POLYESTER YARNS AND PROCESS FOR THE PRODUCTION THEREOF |
摘要 |
<p>TEXTURED POLYESTER YARNS AND PROCESS FOR THE PRODUCTION THEREOF A textured polyester yarn having improved variation in dyeability along its length is composed of a plurality of individual filaments each having thick and thin sections randomly distributed along the filament axis, said yarn having an Uster evenness value of 1.0 to 10.0%, a T index of 3 to 30 and a variation in reflected light intensity in a continuous dyeing test of +0.15 to +0.80 and said yarn preferably having not-untwisted. portions containing genuine twists of a fixed direction intermittently retained at random along its length. The yarn is produced by false twisting a polyester yarn composed of a plurality-of individual filaments each having variation in cross-sectional area along its length, in which the thick sections have a birefringence of 15 to 80x10-3 and the thin sections have a birefringence of 90 to 200x10-3, at a temperature of not lower than 180.degree.C and under a twisting tension of 0.05 to 0.8 g/d with a variation with respect to the average twisting tension of +5 to +20%.</p> |
申请公布号 |
CA1050366(A) |
申请公布日期 |
1979.03.13 |
申请号 |
CA19760254321 |
申请日期 |
1976.06.08 |
申请人 |
TORAY INDUSTRIES, INC. |
发明人 |
NAKAGAWA, KIYOSHI;OTAKI, YUKIO;MINEO, MASATOSHI;ARATANI, YOSHIO;TATSUOKA, YOSHIO;KUSAKABE, HARUHIKO |
分类号 |
D02G1/02;(IPC1-7):01H7/00 |
主分类号 |
D02G1/02 |
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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