Patent ID: 9139954
Filing Date: 2015-09-22
Classification: C09B,C09D,D06P

Abstract:
1. An aqueous coloring composition for textile printing, the aqueous coloring composition comprising a colorant and water, wherein: a molecule of the colorant comprises a chromophoric group and a dissociable group that is in a dissociated state; the chromophoric group and a negative electric charge, generated by dissociation of the dissociable group, form a conjugated system; and a number of the dissociable groups in the molecule of the colorant is the same as a number of the chromophoric groups in the molecule; and wherein the colorant is an azo dye represented by the following Formula 1-1: wherein, in Formula 1-1, D 1 represents a cyclic hydrocarbon group or a heterocyclic group may have a substituent; E represents a hydrogen atom, an acylamino group, or an electron withdrawing group; the benzene ring shown in Formula 1-1 may be condensed with a ring including X 1 as a component; G represents a substituent that bonds to the benzene ring shown in Formula 1-1 or the condensed ring including X 1 as a component; m represents an integer from 0 to 4; W 1 represents an anionic substituent selected from —O − , —S − , —N − (R 1 ), and —C − (R 1 )(R 2 ), and each of R 1 and R 2 independently represents an electron withdrawing group having a Hammett σp value of 0.30 or higher.