Metal-free monoazo and disazo compounds having a 1-hydroxy-5,6-,
Method and apparatus for the manufacture of tanned hides and ski
Method for dyeing leather with water-soluble sulpho group-contai
Method for dyeing of natural leathers using reactive dyes
Method of coloring porous material
Method of dyeing leather with metal complex dyes comprised of me
Mixture of cationic compounds for dyeing and printing textiles,