| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a combined filament yarn, having a high spinning stability, capable of forming a fabric low in cost and excellent in texture in the method for producing a spun combined filament yarn using a single polyester. SOLUTION: This method for producing a combined filament yarn is characterized by including a group having 3,000-9,500 spinning draft and a group having 20-500 spinning draft in carrying out melt spinning of two or more kinds of yarns from the same spinneret by using a single polyester having 0.68-2.00 intrinsic viscosity [η].
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