Polyamide fibers reacted with an epsilon-caprolactone compound have a reduced affinity for acid dyes. The fiber finds particular application in preparing two-tone yarn. Additionally, the polyamide fibers can be treated with one or more stainblockers to produce a stain resistant polyamide fiber having excellent resistance to acid dye colorants.
与
ε-己内酯化合物反应的聚酰胺纤维对
酸性染料的亲和力降低。这种纤维特别适用于制备双色纱线。此外,这种聚酰胺纤维还可以用一种或多种染色阻断剂进行处理,以生产出对
酸性染料着色剂具有优异抗污性的聚酰胺纤维。