WF-Series provides dyes that are more durable in water and that are less likely to change with washing detergents than other azo-free acidic leather dyes. These dyes are recommended for leather fashion items, such as high-end clothing, wallets, purses, and so forth because they have excellent bleeding and solvent migration effects. They are also environment-friendly dyes containing no toxic or harmful substance.
Highly waterproof and detergent-proof, these dyes are also very sunlight-resistant, and are preferred for usage on automotive products. They also have excellent bleeding and solvent migration effects.