Ink jet ink composition set and ink jet recording method

Patent metadata

Field	Value
Publication number	US-11898043-B2
Application number	US-202117460939-A
Country	US
Kind code	B2
Filing date	Aug 30, 2021
Priority date	Aug 31, 2020
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

Abstract

An ink jet ink composition set includes a white ink jet ink composition and a nonwhite ink jet ink composition. The white ink jet ink composition contains a white pigment, resin particles, and water, and the nonwhite ink jet ink composition contains a nonwhite pigment, resin particles, and water. The white pigment has cation responsiveness, and the absolute value of zeta potential of the white pigment is lower than the absolute value of zeta potential of the nonwhite pigment.

First claim

What is claimed is:

1. An ink jet ink composition set comprising:
a white ink jet ink composition; and
a nonwhite ink jet ink composition,
wherein the white ink jet ink composition contains a white pigment, resin particles, and water;
the nonwhite ink jet ink composition contains a nonwhite pigment, resin particles, and water, the nonwhite pigment being at least one of a cyan pigment a yellow pigment, a magenta pigment, and a black pigment;
the white pigment has cation responsiveness; and
the absolute value of zeta potential of the white pigment is lower than the absolute value of zeta potential of the nonwhite pigment.

2. The ink jet ink composition set according to claim 1 , wherein one or two or more of the nonwhite pigment and the resin particles contained in the nonwhite ink jet ink composition have the cation responsiveness.

3. The ink jet ink composition set according to claim 1 , wherein the nonwhite pigment in the nonwhite ink jet ink composition has the cation responsiveness.

4. The ink jet ink composition set according to claim 1 , wherein the set is used for textile printing on a fabric, and the fabric is a fabric treated with a cationic compound.

5. The ink jet ink composition set according to claim 1 , wherein the white pigment contains titanium oxide.

6. The ink jet ink composition set according to claim 1 , wherein the specific gravity of the white pigment is higher than the specific gravity of the nonwhite pigment.

7. The ink jet ink composition set according to claim 1 , wherein the resin particles in the white ink jet ink composition have cation responsiveness.

8. The ink jet ink composition set according to claim 1 , wherein the nonwhite ink jet ink composition is used by being adhered to overlap a region where the white ink jet ink composition is adhered.

9. The ink jet ink composition set according to claim 1 , wherein the white ink jet ink composition and the nonwhite ink jet ink composition have a surface tension of 20 mN/m or more and 35 mN/m or less.

10. An ink jet recording method performed by using the ink jet ink composition set according to claim 1 , the method comprising:
adhering the white ink jet ink composition to a fabric by ejecting the white ink jet ink composition; and
adhering the nonwhite ink jet ink composition to a region where the white ink jet ink composition has been adhered,
wherein the nonwhite ink jet ink composition is adhered without drying after the white ink jet ink composition is adhered.

11. The ink jet recording method according to claim 10 , wherein the adhesion of the nonwhite ink jet ink composition is started within 1 minute after the completion of the adhesion of the white ink jet ink composition.

Assignees

• Seiko Epson Corp

Inventors

• Aoki Kazuto
• Miyasa Ryota
• Okada Hideki
• Ohashi Masakazu

Classifications

• C09D11/322 Primary

  Pigment inks · CPC title

• C09D11/40

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

• D06P5/30

  Ink jet printing · CPC title

• C09D11/107

  from unsaturated acids or derivatives thereof · CPC title

• C09D11/102

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