Vat dyes have a significant set of characteristics compared to other dyes. Due to these characteristics, it is often used to solve some problems of color fastness.
① The majority of color of vat dye is intermediate colors
② with excellent light fastness and based on light fastness a variety of complex fastness
③ has excellent resistance to chlorine and wet fastness
④ has excellent stability for the printing and dyeing fabric finishing
⑤ suitable for blended fabric with a bath dyeing
⑥ has excellent resistance to reduction
⑦ can be dyed to a natural tone, very straight sense of a clear color
In summary, compared with vat dyes and other cotton dyes, vat dyes have a series of significant features, especially reflected in the fastness performance.