摘要:
A self-dispersing colorant containing a triazine moiety and an ink composition including the same are disclosed. The ink composition has excellent storage ability. Further, images formed using the ink composition have excellent light fastness and excellent water resistance.
摘要:
Poly-azo compound selected from the group consisting compounds of the formula (I) and compounds of the formula (II), (wherein, Me represents copper, nickel, zinc or iron, A represents a naphthyl group having 1 to 3 sulfonic groups and further optionally having an alkyl group or alkoxy group, R1 and R2 represent each independently a hydrogen atom, alkyl group or alkoxy group, and R3 represents an amino group or hydroxyl group.).
摘要:
New trisazo compounds that are useful as developed direct black dyes for cellulosic textiles and as self-shade dyes for paper and leather having the structure: ##STR1## wherein R' is at least one of the following groups: ##STR2## and M is H, Na, K, Li, N(R).sub.3 H where R is H, lower alkyl or lower hydroxyalkyl and each of the R groups can be the same or different.