Aqueous ink jet composition

Patent metadata

Field	Value
Publication number	US-2019352525-A1
Application number	US-201916411332-A
Country	US
Kind code	A1
Filing date	May 14, 2019
Priority date	May 15, 2018
Publication date	Nov 21, 2019
Grant date	—

Abstract

An aqueous ink jet composition includes a first component which is at least one selected from the group consisting of C.I. Solvent Yellow 160: 1, C.I. Disperse Yellow 82, and C.I. Disperse Yellow 184; a second component which is a dispersant having at least one chemical structure of a sulfo group and a salt thereof; and a third component which has a cumarin skeleton and at least one chemical structure of a sulfo group and a salt thereof.

First claim

What is claimed is:

1 . An aqueous ink jet composition comprising:
a first component which is at least one selected from the group consisting of C.I. Solvent Yellow 160: 1, C.I. Disperse Yellow 82, and C.I. Disperse Yellow 184; a second component which is a dispersant having at least one chemical structure of a sulfo group and a salt thereof; and a third component which has a cumarin skeleton and at least one chemical structure of a sulfo group and a salt thereof.

2 . The aqueous ink jet composition according to claim 1 , wherein the second component is at least one selected from the group consisting of a formalin condensate of sodium naphthalene sulfonate, sodium lignin sulfonate, and a styrene-sodium styrene sulfonate copolymer.

3 . The aqueous ink jet composition according to claim 1 , wherein the third component is at least one selected from the group consisting of C.I. Acid Yellow 184 and C.I. Acid Yellow 250.

4 . The aqueous ink jet composition according to claim 1 , wherein 0.2≤X2/X1≤5.0, wherein the content of the first component and the content of the second component are represented by X1 percent by mass and X2 percent by mass, respectively.

5 . The aqueous ink jet composition according to claim 1 , wherein 0.001≤X3/X1≤3.0, wherein the content of the first component and the content of the third component are represented by X1 percent by mass and X3 percent by mass, respectively.

6 . The aqueous ink jet composition according to claim 1 , wherein 0.001≤X3/X2≤3.0, wherein the content of the second component and the content of the third component are represented by X2 percent by mass and X3 percent by mass, respectively.

7 . The aqueous ink jet composition according to claim 1 , wherein the content of the first component is 0.5 to 20 percent by mass.

8 . The aqueous ink jet composition according to claim 1 , wherein the content of the second component is 0.5 to 20 percent by mass.

9 . The aqueous ink jet composition according to claim 1 , wherein the content of the third component is 0.005 to 6.0 percent by mass.

10 . An aqueous ink jet composition comprising:
at least two types of dye components selected from a specific yellow dye group consisting of C.I. Solvent Yellow 160: 1, C.I. Disperse Yellow 82, and C.I. Disperse Yellow 184; and a sulfonic acid-based dispersant which is a dispersant having at least one chemical structure of a sulfo group and a salt thereof.

11 . The aqueous ink jet composition according to claim 10 , wherein when one component having the highest content among the dye components forming the specific yellow dye group is regarded as a first dye component, the content of the first dye component with respect to the entire specific yellow dye group is 50.0 to 99.9 percent by mass.

12 . The aqueous ink jet composition according to claim 10 , wherein 0.001≤X2/X1≤1.0, wherein one component having the highest content among the dye components forming the specific yellow dye group is regarded as a first dye component, another component among the dye components forming the specific yellow dye group, the content of which is the same as or second to the content of the first dye component, is regarded as a second dye component, the content of the first dye component in the aqueous ink jet composition is represented by X1 percent by mass, and the content of the second dye component in the aqueous ink jet composition is represented by X2 percent by mass.

13 . The aqueous ink jet composition according to claim 10 , wherein among the dye components forming the specific yellow dye group, C.I. Solvent Yellow 160: 1 is a component having the highest content.

14 . The aqueous ink jet composition according to claim 10 , wherein the sulfonic acid-based dispersant is at least one selected from the group consisting of a formalin condensate of sodium naphthalene sulfonate, sodium lignin sulfonate, and a styrene-sodium styrene sulfonate copolymer.

15 . The aqueous ink jet composition according to claim 10 , wherein 0.2≤XS/XD≤5.0, wherein the content of the specific yellow dye group and the content of the sulfonic acid-based dispersant are represented by XD percent by mass and XS percent by mass, respectively.

16 . The aqueous ink jet composition according to claim 10 , wherein the content of the specific yellow dye group is 0.6 to 26 percent by mass.

17 . The aqueous ink jet composition according to claim 10 , wherein among the dye components forming the specific yellow dye group, C.I. Solvent Yellow 160: 1 is a component having the highest content,
the content of C.I. Solvent Yellow 160: 1 with respect to the entire specific yellow dye group is 60.0 to 99.0 percent by mass, and the content of C.I. Solvent Yellow 160: 1 in the aqueous ink jet composition is 0.5 to 25.0 percent by mass.

18 . The aqueous ink jet composition according to claim 10 , wherein the content of the sulfonic acid-based dispersant is 0.5 to 20 percent by mass.

Assignees

• Seiko Epson Corp

Inventors

• Ikeda Yasunari
• Hayashi Hiroko
• Kitada Kenji
• Hokari Hirofumi
• Okamura Hisashi
• Kikuchi Kenta
• Naito Shinichi

Classifications

• C09D11/30

  Inkjet printing inks · CPC title

• C09D11/38

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

• C09B67/0033 Primary

  Blends of pigments; Mixtured crystals; Solid solutions · CPC title

• C09D11/328 Primary

  characterised by dyes · CPC title

• C09D11/103

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