Ink-jet textile printing pretreatment liquid, ink set, ink-jet textile printing apparatus, and ink-jet textile printing method

Patent metadata

Field	Value
Publication number	US-11958304-B2
Application number	US-202117628625-A
Country	US
Kind code	B2
Filing date	Mar 18, 2021
Priority date	Mar 25, 2020
Publication date	Apr 16, 2024
Grant date	Apr 16, 2024

Abstract

An ink-jet textile printing pretreatment liquid is discharged by an ink-jet nozzle, and contains a specific solvent and a specific resin particle. The specific solvent contains water and polyvalent alcohol. The specific resin particle contains a cationic resin having a cationic group. A particle size of the specific resin particle is 30 nm or more and 150 nm or less.

First claim

The invention claimed is:

1. An ink-jet textile printing pretreatment liquid comprising:
a specific solvent; and
a specific resin particle,
wherein
the specific solvent contains water and polyvalent alcohol,
the specific resin particle contains a cationic resin having a cationic group, and
a particle size of the specific resin particle is 40 nm or more and 80 nm or less,
wherein the cationic resin contains a specific repeating unit derived from a cation group-containing unsaturated monomer, and content ratio of the specific repeating unit in the cationic resin is 10.0% by mass or more and 80.0% by mass or less.

2. The ink-jet textile printing pretreatment liquid according to claim 1 , wherein content ratio of the specific resin particles is 1.0% by mass or more and 5.0% by mass or less.

3. The ink-jet textile printing pretreatment liquid according to claim 1 , wherein the polyvalent alcohol has 2 or more and 5 or less carbon atoms.

4. The ink-jet textile printing pretreatment liquid according to claim 3 , wherein the polyvalent alcohol contains ethylene glycol, propanediol or glycerin.

5. The ink-jet textile printing pretreatment liquid according to claim 1 , wherein content ratio of the polyvalent alcohol is 30.0% by mass or more and 60.0% by mass or less.

6. The ink-jet textile printing pretreatment liquid according to claim 1 , wherein the cationic group contains an amino group or a quaternary ammonium group.

7. An ink set, comprising:
an ink-jet textile printing ink; and
the ink-jet textile printing pretreatment liquid according to claim 1 ,
wherein the ink-jet textile printing ink contains a pigment, a binder resin particle, a water-soluble organic solvent, and water.

8. An ink-jet textile printing method that forms an image in an image-forming area of a textile print target by using the ink set according to claim 7 , the method comprising:
a pretreatment process that discharges, by an ink-jetting, the ink-jet textile printing pretreatment liquid to the image-forming area; and
an image formation process that discharges, by an ink-jetting, the ink-jet textile printing ink to the image-forming area.

9. An ink-jet textile printing apparatus that forms an image in an image-forming area of a textile print target by using the ink set according to claim 7 , the apparats comprising:
a pretreatment portion that discharges, by an ink-jetting, the ink-jet textile printing pretreatment liquid to the image-forming area; and
an image-forming portion that discharges, by an ink-jetting, the ink-jet textile printing ink to the image-forming area.

10. An ink-jet textile printing pretreatment liquid, comprising:
a specific solvent; and
a specific resin particle,
wherein
the specific solvent contains water and polyvalent alcohol,
the specific resin particle contains a cationic resin having a cationic group, and
a particle size of the specific resin particle is 40 nm or more and 80 nm or less, and
wherein an SP value of the specific solvent is 30 (J/cm 3 ) 1/2 or more and 45 (J/cm 3 ) 1/2 or less, and an SP value of the cationic resin is 10 (J/cm 3 ) 1/2 or more and 20 (J/cm 3 ) 1/2 or less.

11. An ink-jet textile printing pretreatment liquid, comprising:
a specific solvent; and
a specific resin particle,
wherein
the specific solvent contains water and polyvalent alcohol,
the specific resin particle contains a cationic resin having a cationic group, and
a particle size of the specific resin particle is 40 nm or more and 80 nm or less, and
wherein difference between an SP value of the specific solvent and an SP value of the cationic resin is 15 (J/cm 3 ) 1/2 or more and 25 (J/cm 3 ) 1/2 or less.

Assignees

• Kyocera Document Solutions Inc

Inventors

• Hioki Jun

Classifications

• B41J2/2114

  Ejecting specialized liquids, e.g. transparent or processing liquids (B41J2/211 takes precedence) · CPC title

• B41J3/4078 Primary

  Printing on textile · CPC title

• B41J2/211

  Mixing of inks, solvent or air prior to paper contact · CPC title

• B41J11/0015

  for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing (selective coating B41J2/2114) · CPC title

• C09D11/54 Primary

  Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink · CPC title