| 摘要 |
PROBLEM TO BE SOLVED: To provide a combined filament yarn giving synergistic effects of bulky feeling based on the difference of shrinkage between fibers, and bulky feeling caused by surface loops, providing various colors by utilizing the color difference in dyeing among the constituent fibers, and also providing excellent contrast between the colors, at a low cost. SOLUTION: The method for producing the combined filament yarn comprises simultaneously drawing an undrawn yarn comprising a polypropylene multifilament containing≥0.2 wt.% phthalocyanine-based pigment, and one or more kinds of polypropylene multifilaments containing <0.2 wt.% phthalocyanine-based pigment at 90-130°C drawing temperature, directly subjecting the drawn yarn to crimping without winding the yarn once, and winding the crimped yarn continuously. COPYRIGHT: (C)2005,JPO&NCIPI
|
