Pigment composition

摘要

A pigment composition consisting of 100 parts by weight of a pigment, and from 0.1 to 30 parts by weight of a pigment dispersant of formula <IMAGE> in which Q is (a) an anthraquinone dye or pigment radical, (b) an azo dye or pigment radical, (c) a benzimidazolone dye or pigment radical, (d) a phthalocyanine dye or pigment radical, (e) a quinacridone dye or pigment radical, (f) a dioxazine dye or pigment radical, (g) an anthrapyrimidine dye or pigment radical, (h) an anthanthrone dye or pigment radical, (i) an indanthrone dye or pigment radical, (j) a falvanthrone dye or pigment radical, (k) a pyranthrone dye or pigment radical, (l) a perinone dye or pigment radical, (m) a perylene dye or pigment or (n) a thioindigo dye or pigment radical; X is a direct bonds, -CH2-; <IMAGE> +TR <IMAGE> Y1 is NH or -O-; Z is <IMAGE> in which Y2 is -NH- or -O-, or -NH-X-Q when n is 1; R1 and R2 are independently an alkyl group containing 1-18 carbon atoms, or are jointly combined to form a piperidine, pyrrolidine, pipecoline or morpholine ring with the nitrogen atom to which they are attached; m is an integer of 1 to 6; and n is an integer of 1 to 4. The pigment compositions exhibit improved fluidity, superior stability and gloss.