| 摘要 |
PROBLEM TO BE SOLVED: To provide a product generating no imperfect dyeing and have excellent deep color and appearance quality, and high fastness, in the product produced by dyeing a tape by an acid dye homochromy test, measuring color of a polyurethane elastic fiber and an acid dye dyeable fiber, respectively, to specify K/S andΔE* and degree of contamination, and performing finish dyeing under a product dyeing condition, and provide the tape using a polyurethane elastic fiber having high fastness. SOLUTION: The tape is prepared by interlacingly knitting the polyurethane fiber and an acid dye-dyeable fiber. In the tape, the difference of K/S of the polyurethane elastic fiber and that of the acid dye dyeable type fiber is 10 or less,ΔE* of the polyurethane elastic fiber and that of the acid dye dyeable type fiber are 30 or less and the degree of contamination is 3.5 degree or more, when the tape is colored by the acid dye homochromy test and measured the color of the polyurethane elastic fiber and the acid dye dyeable fiber, respectively. COPYRIGHT: (C)2009,JPO&INPIT
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