Printing agent, printing agent production method, and cloth article

Patent metadata

Field	Value
Publication number	US-2018282943-A1
Application number	US-201615766360-A
Country	US
Kind code	A1
Filing date	Oct 11, 2016
Priority date	Oct 19, 2015
Publication date	Oct 4, 2018
Grant date	—

Abstract

An object to be achieved by the present invention is to provide a textile printing agent which has less coarse particles and which forms a printed portion having excellent printing properties, especially excellent fastness to washing and excellent fastness to rubbing. The present invention is directed to a textile printing agent which contains a polyhalogenated metallophthalocyanine pigment or a diketopyrrolopyrrole pigment, water, an organic solvent, a binder resin, and, as a pigment dispersant, a polymer (A) having an anionic group, a solubility in water of 0.1 g/100 ml or less, and a number average molecular weight of 1,000 to 6,000, wherein the polymer (A) forms fine particles in water when the polymer (A) is neutralized such that the neutralization rate of the anionic group by a basic compound is 100%.

First claim

1 . A textile printing agent, comprising a polyhalogenated metallophthalocyanine pigment or a diketopyrrolopyrrole pigment; water; an organic solvent; a binder resin; and, as a pigment dispersant, a polymer (A) having an anionic group,
a solubility in water of 0.1 g/100 ml or less, and a number average molecular weight of 1,000 to 6,000, wherein the polymer (A) forms fine particles in water when the polymer (A) is neutralized such that the neutralization rate of the anionic group by a basic compound is 100%.

2 . The textile printing agent according to claim 1 , wherein the polymer (A) is a polymer represented by the following general formula (1):

wherein A 1 represents an organolithium initiator residue, A 2 represents a polymer block of a monomer having an aromatic ring or a heterocycle, A 3 represents a polymer block having an anionic group, n represents an integer of 1 to 5, and B represents an aromatic group or an alkyl group.

3 . The textile printing agent according to claim 1 , wherein the polymer (A) has an acid value of 40 to 400 mg KOH/g.

4 . The textile printing agent according to claim 1 , wherein the polymer (A) is a living anionic polymer using a microreactor.

5 . The textile printing agent according to claim 1 , wherein the binder resin is a urethane resin or an acrylic resin.

6 . A cloth article which is printed with the textile printing agent according to claim 1 .

7 . A method for producing a textile printing agent, comprising, in this order, the step of obtaining a dispersion containing a polymer (A), a basic compound, a water-soluble organic solvent, and a polyhalogenated metallophthalocyanine pigment or a diketopyrrolopyrrole pigment, wherein the polymer (A) has an anionic group, a solubility in water of 0.1 g/100 ml or less, and a number average molecular weight of 1,000 to 6,000, and which forms fine particles in water when the polymer (A) is neutralized such that the neutralization rate of the anionic group by a basic compound is 100%; the step of mixing the dispersion with water to obtain an aqueous pigment dispersion; and the step of mixing the aqueous pigment dispersion, a diluent solvent, a binder resin, and an additive.

Assignees

• Dainippon Ink & Chemicals

Inventors

• Yamakawa Kana
• Kimura Toshihisa
• TOIDA Satoru
• Fujita Kiyomi
• Hashimoto Satoshi

Classifications

• C08G18/0823

  containing carboxylate salt groups or groups forming them · CPC title

• C08F297/026

  polymerising acrylic acid, methacrylic acid or derivatives thereof · CPC title

• C08K5/092

  Polycarboxylic acids · CPC title

• C08G18/6659

  with compounds of group C08G18/34 · CPC title

• C08L53/00

  Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers · CPC title