Ink jet ink for forming an infrared absorbing image, infrared absorbing image forming method, and recorded material

Patent metadata

Field	Value
Publication number	US-2022017762-A1
Application number	US-202117485537-A
Country	US
Kind code	A1
Filing date	Sep 27, 2021
Priority date	Mar 29, 2019
Publication date	Jan 20, 2022
Grant date	—

Abstract

Provided are an ink jet ink for forming an infrared absorbing image and applications thereof, the ink jet ink including an infrared absorbing material represented by Formula (1), resin particles, a water-soluble organic solvent, a water-soluble organic compound X1, a surfactant, and water. M+ represents a proton, a monovalent alkali metal cation, or an organic cation, L1 represents a methine chain consisting of 5 or 7 methine groups, a methine group at a center of the methine chain has a substituent, R1 to R4 each independently represent a hydrogen atom or a substituent, and X represents O, S, or Se.

First claim

What is claimed is:

1 . An ink jet ink for forming an infrared absorbing image comprising:
an infrared absorbing material represented by Formula (1); resin particles; a water-soluble organic solvent; a water-soluble organic compound X1 having a melting point of 50° C. or higher and a molecular weight of lower than 3000; a surfactant; and water, wherein a content of the water-soluble organic solvent is from 10 mass % to 26 mass % with respect to a total amount of the ink jet ink, a content of the water-soluble organic compound X1 is from 1 mass % to 8 mass % with respect to the total amount of the ink jet ink, and a surface tension at 25° C. is 18 mN/m to 30 mN/m:

wherein, in Formula (1), M + represents a proton, a monovalent alkali metal cation, or an organic cation, L 1 represents a methine chain consisting of 5 or 7 methine groups, and a methine group at a center of the methine chain has a substituent,
each of R 1 , R 2 , R 3 , and R 4 independently represents a hydrogen atom, an alkyl group, an aryl group, or a monovalent heterocyclic group, and
each X independently represents an O atom, a S atom, or a Se atom.

2 . The ink jet ink for forming an infrared absorbing image according to claim 1 ,
wherein the infrared absorbing material represented by Formula (1) is an infrared absorbing material represented by Formula (2):

wherein, in Formula (2), M + represents a proton, a monovalent alkali metal cation, or an organic cation, L 1 represents a methine chain consisting of 5 or 7 methine groups, and a methine group at a center of the methine chain has a substituent,
each of R 5 and R 7 independently represents a hydrogen atom, an alkyl group, an aryl group, or a monovalent heterocyclic group,
each of R 6 and R 8 independently represents an alkyl group, a halogen atom, an alkenyl group, an aryl group, a monovalent heterocyclic group, a nitro group, a cyano group, —OR L3 , —C(═O)R L3 , —C(═O)OR L3 , —OC(═O)R L3 , —N(R L3 ) 2 , —NHC(═O)R L3 , —C(═O)N(R L3 ) 2 , —NHC(═O)OR L3 , —OC(═O)N(R L3 ) 2 , —NHC(═O)N(R L3 ) 2 , —SR L3 , —S(═O) 2 R L3 , —S(═O) 2 OR L3 , —NHS(═O) 2 R L3 , or —S(═O) 2 N(R L3 ) 2 , and R L3 's each independently represent a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, or a monovalent heterocyclic group,
each n independently represents an integer from 1 to 5, and
each X independently represents an O atom, a S atom, or a Se atom.

3 . The ink jet ink for forming an infrared absorbing image according to claim 2 ,
wherein in Formula (2), R 6 and R 8 each independently represent —NHC(═O)R L3 .

4 . The ink jet ink for forming an infrared absorbing image according to claim 2 ,
wherein a proportion of a water-soluble organic solvent L1 having a boiling point of 200° C. or lower in the water-soluble organic solvent is 70 mass % or higher.

5 . The ink jet ink for forming an infrared absorbing image according to claim 3 ,
wherein a proportion of a water-soluble organic solvent L1 having a boiling point of 200° C. or lower in the water-soluble organic solvent is 70 mass % or higher.

6 . The ink jet ink for forming an infrared absorbing image according to claim 2 ,
wherein the water-soluble organic compound X1 includes at least one of urea or trimethylolpropane.

7 . The ink jet ink for forming an infrared absorbing image according to claim 3 ,
wherein the water-soluble organic compound X1 includes at least one of urea or trimethylolpropane.

8 . The ink jet ink for forming an infrared absorbing image according to claim 4 ,
wherein the water-soluble organic compound X1 includes at least one of urea or trimethylolpropane.

9 . The ink jet ink for forming an infrared absorbing image according to claim 5 ,
wherein the water-soluble organic compound X1 includes at least one of urea or trimethylolpropane.

10 . An infrared absorbing image forming method comprising:
forming an infrared absorbing image by applying the ink jet ink for forming an infrared absorbing image according to claim 2 to a substrate using an ink jet method.

11 . An infrared absorbing image forming method comprising:
forming an infrared absorbing image by applying the ink jet ink for forming an infrared absorbing image according to claim 5 to a substrate using an ink jet method.

12 . An infrared absorbing image forming method comprising:
forming an infrared absorbing image by applying the ink jet ink for forming an infrared absorbing image according to claim 9 to a substrate using an ink jet method.

13 . The infrared absorbing image forming method according to claim 10 , further comprising:
applying a treatment liquid including an aggregating agent to the substrate before the step of forming the infrared absorbing image, wherein, in forming the infrared absorbing image, the infrared absorbing image is formed by applying the ink jet ink for forming an infrared absorbing image to at least a part of a region of the substrate to which the treatment liquid is applied.

14 . The infrared absorbing image forming method according to claim 11 , further comprising:
applying a treatment liquid including an aggregating agent to the substrate before the step of forming the infrared absorbing image, wherein, in forming the infrared absorbing image, the infrared absorbing image is formed by applying the ink jet ink for forming an infrared absorbing image to at least a part of a region of the substrate to which the treatment liquid is applied.

15 . The infrared absorbing image forming method according to claim 12 , further comprising:
applying a treatment liquid including an aggregating agent to the substrate before forming the infrared absorbing image, wherein, in forming the infrared absorbing image, the infrared absorbing image is formed by applying the ink jet ink for forming an infrared absorbing image to at least a part of a region of the substrate to which the treatment liquid is applied.

16 . The infrared absorbing image forming method according to claim 13 ,
wherein, in applying the treatment liquid, the treatment liquid is applied to the substrate in a pattern image shape using an ink jet method.

17 . The infrared absorbing image forming method according to claim 14 ,
wherein, in applying the treatment liquid, the treatment liquid is applied to the substrate in a pattern image shape using an ink jet method.

18 . The infrared absorbing image forming method according to claim 15 ,
wherein, in applying the treatment liquid, the treatment liquid is applied to the substrate in a pattern image shape using an ink jet method.

19 . A recorded material comprising:
a substrate; and an infrared absorbing image that is disposed on the substrate and is a dry material of the ink jet ink for forming an infrared absorbing image according to claim 2 .

20 . A recorded material comprising:
a substrate; and an infrared absorbing image that is disposed on the substrate and is a dry material of the ink jet ink for forming an infrared absorbing image according to claim 5 .

Assignees

• Fujifilm Corp

Inventors

• Sasada Misato
• Hara Akihiro
• Sasaki Daisuke

Classifications

• B41M3/00

  Printing processes to produce particular kinds of printed work, e.g. patterns ({printing apparatus or machines of special type or for particular purposes B41F17/00;} special designs or pictures per se B44F; manufacturing printed circuits using printing techniques H05K3/12 {; manufacturing organic semiconductor devices using printing techniques H10K71/13}) · CPC title

• B41M3/14

  Security printing {(securities B42D25/29)} · CPC title

• B41M5/0017

  Application of ink-fixing material, e.g. mordant, precipitating agent, on the substrate prior to printing, e.g. by ink-jet printing, coating or spraying · CPC title

• C09D11/40

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

• C09D11/107 Primary

  from unsaturated acids or derivatives thereof · CPC title