Triphendioxazine triazinyl dyes having phosphonic acid groups

Claim 1

A dyestuff having the formula: ##STR31## wherein X is NH R 4 is selected from the group consisting of H, C 1-4 alkyl and C 1-4 alkyl substituted by one of OH, SO 3 H or COOH; Y is selected from the group consisting of phenylene substituted by 0-2 SO 3 H, or --CH 2 CH 2 --, or --CH 2 --CH(OH)--CH 2 --, or --CH 2 --CH 2 --CH(OSO 3 H)CH 2 --, or ##STR32## or X and Y together are a direct link; or the group --X--Y--NR 4 -- is ##STR33## Z and Z' are each selected from the group consisting of H and ##STR34## wherein R 2 is OH; Cl; Br; NH 2 ; C 1-4 alkylamino; di(C 1-4 alkyl)amino; C 1-4 alkyl amino or di(C 1-4 alkyl) amino radicals of which one or both of the alkyl groups is substituted by OH, SO 3 H, OSO 3 H or COOH; N-morpholino; benzylamino; sulphobenzylamino; phenoxy; sulphophenoxy; mono-, di- or tri-sulphonaphthylamino; dicarboxy anilino; or a radical of the formula: ##STR35## wherein q = 0, 1 or 2; R 5 is H, methyl, sulphomethyl, ethyl or hydroxyethyl; and R 6 is H, CH 3 , OCH 3 , COOH, Cl, NH 2 or ##STR36## where r = 0 or 1 or R 2 is a quaternary ammonium group selected from the group consisting of N + (CH 3 ) 3 hal - , N + (CH 3 ) 2 C 2 H 5 hal - and ##STR37## where hal is Cl or Br, ω = 0 or 1 and z = 0 or 1; R 1 is selected from the group consisting of H, C 1-4 alkyl and C 1-4 alkyl substituted by one of OH, SO 3 H, or COOH, and R is selected from the group consisting of C 1-6 alkylene, C 1-6 hydroxyalkylene, phenylene having 0-3 substituents each selected from the group consisting of SO 3 H, C 1-4 alkyl, alkoxy and chloro; naphthylene, sulphonaphthylene, benzylidene and a group of the formula: ##STR38## where x = 0 or 1 providing that at least one of Z and Z 1 is not H.