Direct dyes are a type of dye that can be directly dissolved in water and directly combine with fibers. They are usually used to dye cellulose fibers such as cotton, linen and wood pulp. They do not require additional dye media or auxiliaries, and the dyeing process is simple and fast. Water-soluble direct dyes are usually dyed under neutral or slightly acidic conditions. They combine with fibers through intermolecular hydrogen bonds, van der Waals forces and other effects, and the dyeing effect is relatively uniform. Although its color fastness is relatively low, due to its simple operation and low cost, it is widely used in paper, cotton and linen textiles (active, dispersing), disinfectants, cleaning agents, etc.
Jingjiang Industrial park, xiaoshan, Hangzhou,China
About Us
Hangzhou Ritan Chemical was found in Year 2009, we are a firm specializing in producing and trading of dyes and dye intermediates.Based on more than 13years sevice, we have good reputation in our clients.
