| 摘要 |
PROBLEM TO BE SOLVED: To provide a polytrimethylene terephthalate multi-filament package allowing the production of superior quality drawn and temporarily-twisted yarns causing less breakage and fluff even in drawing and temporary twisting after storage. SOLUTION: The polyester multi-filament package comprises polytrimethylene terephthalate multi-filaments having a double refraction index of 0.040-0.060 and a hot water shrinkage percentage of 3-30%. The cheese package has a saddle percentage of 3% or less and a saddle charging percentage of 20% or less. COPYRIGHT: (C)2003,JPO
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