Recording method and ink set

Patent metadata

Field	Value
Publication number	US-2016289479-A1
Application number	US-201615090844-A
Country	US
Kind code	A1
Filing date	Apr 5, 2016
Priority date	Apr 6, 2015
Publication date	Oct 6, 2016
Grant date	—

Abstract

According to the invention, there is provided a recording method including adhering a reaction liquid to a recording region of a recording medium, the reaction liquid containing a reagent which causes aggregation or thickening of a colored ink composition; adhering the colored ink composition to the recording region to which the reaction liquid has been adhered, the colored ink composition containing a resin and a coloring material; and adhering a clear ink composition which contains a resin, to the recording region to which the reaction liquid has been adhered, in which a resin which causes a volume of a calcium acetate aqueous solution of 0.085 mol/kg to be equal to or smaller than 7 mL is contained as the resin contained in the colored ink composition, the calcium acetate aqueous solution being required for aggregating a liquid of 3 mL, which contains the resin so as to have a content of 1 mass %.

First claim

What is claimed is:

1 . A recording method comprising:
adhering a reaction liquid to a recording region of a recording medium, the reaction liquid containing a reagent which causes aggregation or thickening of a colored ink composition; adhering the colored ink composition to the recording region to which the reaction liquid has been adhered, the colored ink composition containing a resin and a coloring material; and adhering a clear ink composition which contains a resin, to the recording region to which the reaction liquid has been adhered, wherein a resin which causes a volume of a calcium acetate aqueous solution of 0.085 mol/kg to be equal to or smaller than 7 mL is contained as the resin contained in the colored ink composition, the calcium acetate aqueous solution being required for aggregating a liquid of 3 mL, which contains the resin so as to have a content of 1 mass %.

2 . The recording method according to claim 1 , wherein
a resin which causes a volume of a calcium acetate aqueous solution of 0.085 mol/kg to be equal to or greater than 5 mL is contained as the resin contained in the clear ink composition, the calcium acetate aqueous solution being required for aggregating a liquid of 3 mL, which contains the resin so as to have a content of 1 mass %.

3 . The recording method according to claim 1 , wherein
a resin in which a glass transition temperature is equal to or higher than 0° C. is contained as the resin contained in the clear ink composition.

4 . The recording method according to claim 1 , wherein
an average particle diameter in the resin contained in the clear ink composition is equal to or smaller than 200 nm.

5 . The recording method according to claim 1 , wherein
adhering of the colored ink composition is started within 20 seconds from the completion of the reaction liquid adhering.

6 . The recording method according to claim 1 , wherein
the maximum adhering amount of the reaction liquid to the recording region is from 0.2 mg/inch 2 to 3 mg/inch 2 .

7 . The recording method according to claim 1 , wherein
at least one selected from a group of multivalent metal salts and organic acids is contained as the reagent.

8 . The recording method according to claim 1 , wherein
the content of the resin contained in the colored ink composition is from 0.5 mass % to 13 mass %, the content of the resin contained in the clear ink composition is from 1 mass % to 17 mass %, and the content of the reagent contained in the reaction liquid is from 0.1 mol/kg to 1.5 mol/kg.

9 . The recording method according to claim 1 , wherein
the volume of the calcium acetate aqueous solution for the resin contained in the clear ink composition is larger than the volume of the calcium acetate aqueous solution for the resin contained in the colored ink composition, the volume of the calcium acetate aqueous solution of 0.085 mol/kg being required for aggregating the liquid of 3 mL which contains the corresponding resin so as to have a content of 1 mass %.

10 . The recording method according to claim 1 , wherein
each of the colored ink composition and the clear ink composition is discharged from an ink jet recording head and adhered to the recording medium.

11 . An ink set which comprises the reaction liquid, the colored ink composition, and the clear ink composition in order to be used in the recording method according to claim 1 .

12 . An ink set which comprises the reaction liquid, the colored ink composition, and the clear ink composition in order to be used in the recording method according to claim 2 .

13 . An ink set which comprises the reaction liquid, the colored ink composition, and the clear ink composition in order to be used in the recording method according to claim 3 .

14 . An ink set which comprises the reaction liquid, the colored ink composition, and the clear ink composition in order to be used in the recording method according to claim 4 .

15 . An ink set which comprises the reaction liquid, the colored ink composition, and the clear ink composition in order to be used in the recording method according to claim 5 .

16 . An ink set which comprises the reaction liquid, the colored ink composition, and the clear ink composition in order to be used in the recording method according to claim 6 .

17 . An ink set which comprises the reaction liquid, the colored ink composition, and the clear ink composition in order to be used in the recording method according to claim 7 .

18 . An ink set which comprises the reaction liquid, the colored ink composition, and the clear ink composition in order to be used in the recording method according to claim 8 .

19 . An ink set which comprises the reaction liquid, the colored ink composition, and the clear ink composition in order to be used in the recording method according to claim 9 .

20 . An ink set which comprises the reaction liquid, the colored ink composition, and the clear ink composition in order to be used in the recording method according to claim 10 .

Assignees

• Seiko Epson Corp

Inventors

• Okuda Ippei

Classifications

• B41J2/2114

  Ejecting specialized liquids, e.g. transparent or processing liquids (B41J2/211 takes precedence) · CPC title

• C09D11/54 Primary

  Inks based on two liquids, one liquid being the ink, the other liquid being a reaction solution, a fixer or a treatment solution for the ink · CPC title

• B41J2/01

  Ink jet · CPC title

• C09D11/108

  Hydrocarbon resins · CPC title

• C09D11/38

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