Use of 1:2 chromium of cobalt complex dyes for dyeing leather or
Use of 1:2 cobalt complex dyes for dyeing leather or furs
Use of certain quaternary ammonium compounds in dyeing leather w
Use of sulfonated polyazo dyes for dyeing leather in brilliant f
Water-soluble phthalocyanine sulfonyl cyanamide compounds, proce
Water-soluble polyazo dyestuffs