Vat dyes are mainly used to dye and print cotton, polyester and hemp fibers, and are not soluble in water Vat dyes are mainly used to dye and print cotton, polyester and hemp fibers, and are not soluble in water. Now we have developed soluble vat dyes which can be soluble in water and are for the cotton, leather, painting and printing paste industries.VAT DYESTUFFSSJ1012 VAT YELLOW G Y-1SJ1018 ...