Ink jet textile-printing ink composition, recording method, and recorded material

Patent metadata

Field	Value
Publication number	US-12486415-B2
Application number	US-202318111624-A
Country	US
Kind code	B2
Filing date	Feb 20, 2023
Priority date	Feb 21, 2022
Publication date	Dec 2, 2025
Grant date	Dec 2, 2025

Abstract

An ink jet textile-printing ink composition according to the present disclosure contains an acidic dye having water solubility of 30 g/L or less at 20° C., a water-soluble organic solvent, and water, wherein a glycol-based solvent and a cyclic-amide-based solvent are contained as the water-soluble organic solvent, and the cyclic-amide-based solvent contains one or both of ε-caprolactam and N-hydroxyethyl-2-pyrrolidone.

First claim

What is claimed is:

1 . An ink jet textile-printing ink composition comprising:
an acidic dye having water solubility of 30 g/L or less at 20° C.; a water-soluble organic solvent; and water, wherein a glycol-based solvent and a cyclic-amide-based solvent are contained as the water-soluble organic solvent, the cyclic-amide-based solvent contains one or both of ε-caprolactam and N-hydroxyethyl-2-pyrrolidone, the acidic dye is at least one selected from the group consisting of C.I. Acid Red 407 and C.I. Acid Violet 97, a content of the glycol-based solvent in the ink jet textile-printing ink composition is denoted as XG (% by mass), a content of the cyclic-amide-based solvent is denoted as XL (% by mass), and 11.7≤XG/XL≤50.0.

2 . The ink jet textile-printing ink composition according to claim 1 , wherein
a content of the glycol-based solvent is 10% by mass or more.

3 . The ink jet textile-printing ink composition according to claim 1 , wherein
a content of the cyclic-amide-based solvent is 0.5% by mass or more.

4 . The ink jet textile-printing ink composition according to claim 1 , wherein
a compound having a glycol structure and a compound having a glycol ether structure are contained as the glycol-based solvent.

5 . The ink jet textile-printing ink composition according to claim 1 , wherein
the glycol-based solvent is at least one selected from the group consisting of diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol, triethylene glycol monobutyl ether, diethylene glycol monobutyl ether, dipropylene glycol monobutyl ether, and dipropylene glycol monopropyl ether.

6 . The ink jet textile-printing ink composition according to claim 1 , wherein
a content of the acidic dye is 7.0% by mass or less.

7 . The ink jet textile-printing ink composition according to claim 1 , further comprising:
a surfactant with a content of 0.4% by mass or more.

8 . A recording method comprising:
an ejection step of ejecting the ink jet textile-printing ink composition according to claim 1 by an ink jet method so as to attach the ink jet textile-printing ink composition to a fabric and a dyeing step of fixing the acidic dye to the fabric.

9 . A recorded material comprising:
a colored portion due to the ink jet textile-printing ink composition according to claim 1 applied to a fabric by an ink jet method.

Assignees

• Seiko Epson Corp

Inventors

• Ishida Kohei
• Oki Yasuhiro
• Aruga Tomohiro

Classifications

• D06P1/48

  Derivatives of carbohydrates · CPC title

• B41J2/2107

  characterised by the ink properties (supplying ink in a solid state B41J2/17593) · CPC title

• B41M5/00

  Duplicating or marking methods; Sheet materials for use therein (by using light-sensitive materials G03; electrography, magnetography G03G {; repeatedly usable boards or tablets for writing or drawing B43L1/00}) · CPC title

• B41J2/01

  Ink jet · CPC title

• D06P5/30

  Ink jet printing · CPC title