Printing agent, printed fabric, and method for producing printing agent

Patent metadata

Field	Value
Publication number	US-10047479-B2
Application number	US-201615545653-A
Country	US
Kind code	B2
Filing date	Jan 21, 2016
Priority date	Jan 23, 2015
Publication date	Aug 14, 2018
Grant date	Aug 14, 2018

Abstract

Provided is a printing agent including a pigment, a pigment dispersant, water, an organic solvent, and a binder resin, the pigment dispersant being a polymer (A) including an anionic group, the polymer (A) having a solubility in water of 0.1 g/100 ml or less, a number-average molecular weight of 1000 to 6000, and an acid value of 40 to 400 mgKOH/g. Also provided is a printed fabric produced by applying the printing agent on a fabric. The polymer (A) is preferably a polymer represented by General Formula (1) (where A1 represents a residue of an organolithium initiator; A2 represents a polymer block including a monomer having an aromatic ring or a heterocyclic ring; A3 represents a polymer block including an anionic group; n represents an integer of 1 to 5; and B represents an aromatic group or an alkyl group).

First claim

The invention claimed is:

1. A printing agent comprising a pigment, a pigment dispersant, water, an organic solvent, and a binder resin, the pigment dispersant being a polymer (A) including an anionic group, the polymer (A) having a solubility in water of 0.1 g/100 ml or less, a number-average molecular weight of 1000 to 6000, and an acid value of 40 to 400 mgKOH/g.

2. The printing agent according to claim 1 , wherein the polymer (A) is a polymer represented by General Formula (1) below,

(where A 1 represents a residue of an organolithium initiator; A 2 represents a polymer block including a monomer having an aromatic ring or a heterocyclic ring; A 3 represents a polymer block including an anionic group; n represents an integer of 1 to 5; and B represents an aromatic group or an alkyl group).

3. The printing agent according to claim 1 , wherein the polymer (A) has an acid value of 40 to 190 mgKOH/g.

4. The printing agent according to claim 1 , wherein the polymer (A) is a polymer produced by performing living anionic polymerization with a microreactor.

5. The printing agent according to claim 1 , wherein the binder resin is a polyurethane resin or a polyacrylic resin.

6. A printed fabric produced by applying, to a fabric, the printing agent according to claim 1 .

7. A method for producing a printing agent, the method comprising the following steps conducted in this order: a step in which a dispersion mixture including a polymer (A), a basic compound, a water-soluble organic solvent, and a pigment is prepared, the polymer (A) including an anionic group, the polymer (A) having a solubility in water of 0.1 g/100 ml or less, the polymer (A) being capable of forming microparticles in water when a degree of neutralization of the anionic group achieved by the basic compound is 100%, the polymer (A) having a number-average molecular weight of 1000 to 6000; a step in which the dispersion mixture is mixed with water to form an aqueous pigment dispersion; and a step in which the aqueous pigment dispersion is mixed with a diluent solvent, a binder resin, and an additive for printing agents.

Assignees

• Dainippon Ink & Chemicals

Inventors

• Kido Tomoko
• Uemura Yukie
• Kimura Toshihisa
• Tanaka Hisakazu
• Oji Yasuo
• Oe Nobuhiro

Classifications

• D06P1/14

  using phthalocyanine dyes without vatting (D06P1/38, D06P1/40 take precedence) · CPC title

• D06P1/44

  using insoluble pigments or auxiliary substances, e.g. binders · CPC title

• C09D11/106

  containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title

• B01J19/0093

  Microreactors, e.g. miniaturised or microfabricated reactors (laboratory containers with capillary fluid transport in microfabricated channels or chambers B01L3/5027) · CPC title

• D06P5/00

  Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form · CPC title