Monoazo dyes containing sulphonylbetaine groups for - cellulose acetate polamide polyurethane or poly-

摘要

MONOAZO DYES CONTAINING SULPHONYLBETAINE GROUPS FOR CELLULOSE ACETATE, POLYAMIDE, POLYURETHANE OR POLYACRYLONITRILE FIBRES. G2A. Are of formula: and (II) in which N is not is quaternised with YZ where Y is a lower alkyl benzyl residue and Z - halogen, alkyl-sulphonic acid residue or a benzene or p-toluene sulphonic acid residue.