Ink set

Patent metadata

Field	Value
Publication number	US-9718978-B2
Application number	US-201615062662-A
Country	US
Kind code	B2
Filing date	Mar 7, 2016
Priority date	Mar 10, 2015
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

There is provided an ink set including a water-based cleaning transportation liquid, and a disperse dye ink composition, in which the water-based cleaning transportation liquid includes water and at least one of an aromatic sulfonate formalin condensate and a lignin sulfonate as a dispersing agent I, without including a coloring material, and the disperse dye ink composition includes a disperse dye, water, and a dispersing agent II.

First claim

What is claimed is:

1. An ink set comprising:
a water-based cleaning transportation liquid; and
a disperse dye ink composition,
wherein the water-based cleaning transportation liquid includes water and at least one of an aromatic sulfonate formalin condensate and a lignin sulfonate as a dispersing agent I, without including a coloring material, and
the disperse dye ink composition includes a disperse dye, water, and a dispersing agent II.

2. The ink set according to claim 1 ,
wherein a content I of the dispersing agent I with respect to a total amount of the water-based cleaning transportation liquid is 2.0 mass % to 30 mass %,
a content II of the dispersing agent II is 2.0 mass % or more with respect to the total amount of the disperse dye ink composition, and
a ratio A of the content II with respect to the content I (content II/content I) is 0.10 to 3.0.

3. The ink set according to claim 2 ,
wherein the content I of the dispersing agent I with respect to the total amount of the water-based cleaning transportation liquid is 5.0 mass % to 15 mass %,
the content II of the dispersing agent II is 2.0 mass % or more with respect to the total amount of the disperse dye ink composition, and
the ratio A of the content II with respect to the content I (content II/content I) is 0.30 to 2.0.

4. The ink set according to claim 1 ,
wherein the content I of the dispersing agent I with respect to the total amount of the water-based cleaning transportation liquid is 2.0 mass % to 30 mass %,
the content II of the dispersing agent II with respect to the total amount of the disperse dye ink composition is less than 2.0 mass %, and
a ratio B of the content II with respect to the content I (content II/content I) is 0.050 to 1.3.

5. The ink set according to claim 4 ,
wherein the content I of the dispersing agent I with respect to the total amount of the water-based cleaning transportation liquid is 5.0 mass % to 15 mass %,
the content II of the dispersing agent II with respect to the total amount of the disperse dye ink composition is less than 2.0 mass %, and
a ratio B of the content II with respect to the content I (content II/content I) is 0.15 to 0.50.

6. The ink set according to claim 1 ,
wherein the water-based cleaning transportation liquid further includes a moisturizing agent I,
a content of the moisturizing agent I with respect to the total amount of the water-based cleaning transportation liquid is 5.0 mass % to 30 mass %,
the disperse dye ink composition further includes a moisturizing agent II, and
a content of the moisturizing agent II with respect to the total amount of the disperse dye ink composition is 5.0 mass % to 30 mass %.

7. The ink set according to claim 1 ,
wherein the water-based cleaning transportation liquid further includes a surface tension adjusting agent, and
a surface tension of the water-based cleaning transportation liquid is 35 mN/m or less.

8. The ink set according to claim 1 ,
wherein the water-based cleaning transportation liquid further includes a pH adjusting agent I,
a pH of the water-based cleaning transportation liquid is 7.0 to 10.0,
the disperse dye ink composition further includes a pH adjusting agent II, and
a pH of the disperse dye ink composition is 7.0 to 10.0.

9. The ink set according to claim 1 ,
wherein the dispersing agent II includes at least one of an aromatic sulfonate formalin condensate and a lignin sulfonate.

10. The ink set according to claim 1 ,
wherein at least one of the dispersing agent I and the dispersing agent II includes at least one of an aromatic sulfonate formalin condensate Na salt and an aromatic sulfonate formalin condensate Ca salt.

11. The ink set according to claim 1 ,
wherein at least one of the dispersing agent I and the dispersing agent II includes at least one of a lignin sulfonate Na salt and a lignin sulfonate Ca salt.

12. The ink set according to claim 1 ,
wherein at least one of the dispersing agent I and the dispersing agent II includes a naphthalene sulfonate formalin condensate.

Assignees

• Seiko Epson Corp

Inventors

• Nakamura Miho
• Ikeda Yasunari
• Oguchi Hideki
• Yano Takeshi
• Naito Shinichi

Classifications

• C09D11/103

  of aldehydes, e.g. phenol-formaldehyde resins · CPC title

• C09D11/40

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

• C09D11/328 Primary

  characterised by dyes · CPC title