| 摘要 |
PROBLEM TO BE SOLVED: To provide a fiber product composed of a fiber dyed with a dispersion dyestuff and a polyamide fiber, excellent in dye fastness, and a method for producing the same. SOLUTION: This fibrous product is provided by containing the fiber dyed with the dispersion dyestuff and the polyamide-based fiber in at least a part of it and treating the surface of the polyamide-based fiber with at least one compound among a sulfon group-containing compound, a polyhydric phenol-based compound and an acid anhydride. The above product is obtained by treating the fibrous product containing a fiber dyeable with the dispersion dyestuff and the polyamide-base fiber in at least one part of it with a treating liquid containing at least one kind of compound among the sulfon group-containing compound, polyhydric phenol-based compound and acid anhydride before and/or during dyeing the product with the dispersion dyestuff.
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