COLOR DEEPENING AGENT FOR FIBER AND METHOD FOR DEEPENING COLOR OF FIBER USING SAME

摘要

Disclosed is a color deepening agent containing silica particles which are treated with a silane coupling agent having an amino group under acidic conditions and a polyether-modified polysiloxane. By treating a colored fiber product such as natural fibers, semi-synthesized fibers and synthesized fibers with such a color deepening agent, there can be obtained a processed colored fiber product which is deepened in color and improved in water absorbing property without deteriorating the inherent characteristics of the colored fiber products.