| 摘要 |
The latent crimping different shrink polyester mixed yarn is produced by mix spinning a high shrinkage polyester yarn as a core yarn of 10%<=S1<=50%, 10%,<=S2<=50%, 0.6S1%<=S2<=3.0S1, 09g/d<=Ts1, 0.9g/d<=Ts2 and a low shrinkage polyester yarn as a sheath yarn of 3%<=S1<=10%, 10%<=S1<=20%, 0.6S1%<=S2<=3.0S1 [S1=shrinkage ratio in boiling water at tensionless condition for 15 min; S2=shrinkage ratio at dry heat of 170deg. C and tensionless condition for 15min; Ts1=heat shrinkage stress at 100deg. C; Ts2=heat shrinkage stress at 145deg. C . The polyester mixed yarn has a silky luster and touch.
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