... to dying cottonm,mucilage glue,rayon,lien,knitgoods,corduroy and wool,meanwhile,it is used on the pirmentation such as the ... on. acid dye are mainly used in pigmentation such as wool,woolen cloth,caddice,silk,leather,the paper and metal etc ... . basic dyes are mainly used in dye such as paper,cotton,wool,silk,bamaboo,leather,feather and grass products.