Pigment compositions

An azo pigment composition comprising one or more compounds of the formula:

• ##STR13## wherein X is a hydrocarbyl, carboxylic acid ester, sulfonic acid ester, carboxylic acid amide or sulfonic acid amide group;
• Y is a hydrocarbyl, halogen or hydrocarbyloxy group;
• and Ar is an aromatic moeity characterized by the formula:
• ##STR14## wherein A is a halogen group;
• each Z is independently a salt of a --COOH or --SO.sub.3 H group;
• m is 1 or 2;
• each R is independently a halogen, hydrocarbyl, hydrocarbyloxy, carboxylic acid ester, sulfonic acid ester, carboxylic acid amide, imidazolone, sulfonic acid amide or nitro group;
• and n is 0, 1 or 2.

A process for preparing an azo dye which comprises coupling (i) at least one diazonium component of one or more aromatic amines characterized by the formula:

• ##STR15## wherein A is a halogen group, each R is independently a halogen, hydrocarbyl, hydrocarbyloxy, carboxylic acid ester, sulfonic acid ester, carboxylic acid amide, imidazolone, sulfonic acid amide or nitro group;
• n is equal to 0, 1 or 2;
• each Z is independently a --COOH or --SO.sub.3 H group, or salts of such groups;
• and m is equal to 1 or 2;
• with (ii) at least one coupling component of the formula:
• ##STR16## wherein X is a hydrocarbyl, carboxylic acid ester, sulfonic acid ester, carboxylic acid amide or sulfonic acid amide group;
• and Y is a hydrocarbyl, halogen or hydrocarbyloxy group.