Azo dyes suitable for ink jet printing

Abstract

Abstract Anionic azo compounds which, in the free acid form, have the Formula (1): ##STR1## wherein: Ar and Ar 1 are each independently aryl or substituted aryl providing at least one of Ar and Ar 1 has at least one substituent selected from COOH and COSH; J and J 1 are each independently of formula (2), (3) or (4): ##STR2## each R 5 is independently selected from H, alkyl, substituted alkyl, alkoxy, halogen, CN, ureido and NHCOR 6 ; R 6 is H, alkyl, substituted alkyl, aryl, substituted aryl, aralkyl or substituted aralkyl; each T is independently alkyl; each W is independently selected from H, CN, CONR 10 R 11 , pyridinium and COOH; each m is an alkylene chain having 2 to 8 carbon atoms; B is H, alkyl or COOH; R 1 , R 2 , R 3 , R 4 , R 10 and R 11 are each independently H, alkyl or substituted alkyl; L is a divalent organic linking group; n is 0 or 1; each X is independently carbonyl or a group of the Formula (5), (6) or (7): ##STR3## Z is OR 7 , SR 7 or NR 8 R 9 ; Y is H, Cl, CN or Z; E is Cl or CN; R 7 , R 8 and R 9 are independently H, alkenyl, substituted alkenyl, alkyl, substituted alkyl, aryl, substituted aryl, aralkyl or substituted aralkyl, or R 8 and R 9 together with the nitrogen atom to which they are attached form a 5 or 6 membered ring; provided (i) if the compound of Formula (1) has no --SO 3 H groups then it has at least two groups selected from --COOH and --COSH; and (ii) the compound of Formula (1) has at least as many groups selected from --COOH and --COSH as --SO 3 H groups. The compounds are useful for the preparation of inks for use in ink-jet printing.

Inventors

• 👤 Peter Gregory
• 👤 Ronald W. Kenyon

Bibliographic Details