Ink jet ink for textile printing, ink set, and textile printing method

Patent metadata

Field	Value
Publication number	US-11827797-B2
Application number	US-201916668012-A
Country	US
Kind code	B2
Filing date	Oct 30, 2019
Priority date	Oct 31, 2018
Publication date	Nov 28, 2023
Grant date	Nov 28, 2023

Abstract

An ink jet ink for textile printing contains a reactive dye, where 1.2% by mass or more and 2.3% by mass or less of C.I. Reactive Blue 49 based on the total amount of the ink is contained as the reactive dye.

First claim

What is claimed is:

1. An ink jet ink for textile printing, comprising:
a reactive dye; and
C.I. Reactive Black 39,
wherein 1.2% by mass or more and 2.3% by mass or less of C.I. Reactive Blue 49 based on a total amount of the ink is contained as the reactive dye; and
wherein a content of the C.I. Reactive 39 is 10.0 parts by mass or more and 25.0 parts by mass or less relative to 100 parts by mass of the C.I. Reactive Blue 49 contained.

2. The ink jet ink for textile printing according to claim 1 , wherein
a total content of nickel ions, cobalt ions, and chromium ions in the ink is 10.0 ppm or less based on the total amount of the ink.

3. The ink jet ink for textile printing according to claim 1 , further comprising:
a reactive dye having a maximum absorption wavelength of 500.0 nm or more and less than 550.0 nm; and
a reactive dye having a maximum absorption wavelength of 400.0 nm or more and less than 500.0 nm.

4. The ink jet ink for textile printing according to claim 3 , wherein
a content of the reactive dye having a maximum absorption wavelength of 400.0 nm or more and less than 500.0 nm is 20.0 parts by mass or more and 30.0 parts by mass or less relative to 100 parts by mass of C.I. Reactive Blue 49 contained.

5. The ink jet ink for textile printing according to claim 3 , wherein
a content of the reactive dye having a maximum absorption wavelength of 500.0 nm or more and less than 550.0 nm is 10.0 parts by mass or more and 20.0 parts by mass or less relative to 100 parts by mass of C.I. Reactive Blue 49 contained.

6. The ink jet ink for textile printing according to claim 3 , wherein
the reactive dye having a maximum absorption wavelength of 400.0 nm or more and less than 500.0 nm has a structure represented by the following formula (I):

wherein R represents —NHCH 2 CH 2 SO 3 H, —NH 2 , or —CH 2 CH 2 OCH 2 CH 2 OH.

7. The ink jet ink for textile printing according to claim 3 , wherein
the reactive dye having a maximum absorption wavelength of 500.0 nm or more and less than 550.0 nm has a structure represented by the following formula (II):

wherein R 1 is selected from groups represented by the following formula (III), formula (IV), formula (V), and formula (VI) (in each formula, a position represented by a dashed line is a connection point); and R 2 is selected from groups represented by the following formula (VII) and formula (VIII) (in each formula, a position represented by a dashed line is a connection point).

8. The ink jet ink for textile printing according to claim 1 , wherein
when a fabric is printed with the ink, a* is −20.0 or more and 0.0 or less, b* is −20.0 or more and 0.0 or less, and L* is 30.0 or more and 80.0 or less.

9. The ink jet ink for textile printing according to claim 1 , further comprising a chelating agent, wherein a content of the chelating agent is 500.0 ppm or less based on the total amount of the ink.

10. An ink set comprising the ink jet ink for textile printing according to claim 1 .

11. The ink set according to claim 10 , wherein
all inks included in the ink set have a total content of nickel ions, cobalt ions, and chromium ions of 10.0 ppm or less based on a total amount of each ink.

12. A textile printing method comprising attaching the ink jet ink for textile printing according to claim 1 to a recording medium.

Assignees

• Seiko Epson Corp

Inventors

• Sakuma Daisuke
• Maruyama Hiroaki
• Komatsu Hidehiko

Classifications

• C09D11/328 Primary

  characterised by dyes · CPC title

• B41J3/4078

  Printing on textile · CPC title

• C07D253/075

  Two hetero atoms, in positions 3 and 5 · CPC title

• C09D11/38

  characterised by non-macromolecular additives other than solvents, pigments or dyes · CPC title

• C09D11/40

  Ink-sets specially adapted for multi-colour inkjet printing · CPC title