Recording method, ink set, and recording apparatus

Patent metadata

Field	Value
Publication number	US-11267982-B2
Application number	US-201916354288-A
Country	US
Kind code	B2
Filing date	Mar 15, 2019
Priority date	Mar 16, 2018
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

A recording method includes: causing a processing solution that contains a coagulant for coagulating constituents of an ink composition to adhere to a recording medium; causing an ink composition that includes a light ink composition and a dark ink composition that belong to a same color system and have mutually different color densities to adhere to the recording medium; and causing a clear ink composition that includes resin to adhere to the recording medium.

First claim

What is claimed is:

1. A recording method comprising:
causing a processing solution that contains a coagulant for coagulating constituents of an ink composition to adhere to a recording medium;
causing an ink composition that includes a light ink composition and a dark ink composition that belong to a same color system and have mutually different color densities to adhere to the recording medium; and
causing a clear ink composition that includes resin to adhere to the recording medium,
wherein a region in which an amount of the adhering light ink composition is equal to or less than 6 mg/inch 2 is included in a region, to which the processing solution, the light ink composition, and the clear ink composition are caused to adhere, on the recording medium, and
a region in which an amount of the adhering dark ink composition is greater than 6 mg/inch 2 is included in a region, to which the processing solution and the dark ink composition are caused to adhere.

2. An ink set that is used in the recording method according to claim 1 , the ink set comprising:
the ink composition that includes the light ink composition and the dark ink composition; and
the clear ink composition.

3. The recording method according to claim 1 , wherein a content of the resin included in the clear ink composition is equal to or greater than 3% by mass.

4. The recording method according to claim 1 , wherein one or more kinds of any of cationic resin, organic acids, and polyvalent metal salts are included as the coagulant included in the processing solution.

5. The recording method according to claim 1 , wherein the light ink composition includes a nitrogen-containing solvent.

6. The recording method according to claim 1 , wherein a region in which an amount of the adhering clear ink composition is equal to or greater than 1 mg/inch 2 is included in a region, to which the processing solution, the light ink composition, and the clear ink composition are caused to adhere, on the recording medium.

7. The recording method according to claim 1 , wherein the light ink composition and the dark ink composition respectively include resin, and
a content of the resin included in the light ink composition and the dark ink composition is equal to or greater than 2% by mass.

8. The recording method according to claim 1 , wherein the light ink composition, the dark ink composition, and the clear ink composition are caused to be respectively ejected from the ink jet head and adhere to the recording medium.

9. The recording method according to claim 1 , wherein the recording medium is a low-absorbable recording medium or a non-absorbable recording medium.

10. A recording apparatus that performs recording by the recording method according to claim 1 .

11. A recording method comprising:
causing a processing solution that contains a coagulant for coagulating constituents of an ink composition to adhere to a recording medium;
causing an ink composition that includes a light ink composition and a dark ink composition that belong to a same color system and have mutually different color densities to adhere to the recording medium; and
causing a clear ink composition that includes resin to adhere to the recording medium,
wherein the content of polyols with standard boiling points of equal to or greater than 280° C. in the light ink composition, the dark ink composition, and the clear ink composition is equal to or less than 0.8% by mass with respect to the ink composition.

12. An ink set that is used in the recording method according to claim 11 , the ink set comprising:
the ink composition that includes the light ink composition and the dark ink composition; and
the clear ink composition.

13. The recording method according to claim 11 , wherein a content of the resin included in the clear ink composition is equal to or greater than 3% by mass.

14. The recording method according to claim 11 , wherein one or more kinds of any of cationic resin, organic acids, and polyvalent metal salts are included as the coagulant included in the processing solution.

15. The recording method according to claim 11 , wherein the light ink composition includes a nitrogen-containing solvent.

16. The recording method according to claim 11 , wherein a region in which an amount of the adhering clear ink composition is equal to or greater than 1 mg/inch 2 is included in a region, to which the processing solution, the light ink composition, and the clear ink composition are caused to adhere, on the recording medium.

17. The recording method according to claim 11 , wherein the light ink composition and the dark ink composition respectively include resin, and
a content of the resin included in the light ink composition and the dark ink composition is equal to or greater than 2% by mass.

18. The recording method according to claim 11 , wherein the light ink composition, the dark ink composition, and the clear ink composition are caused to be respectively ejected from the ink jet head and adhere to the recording medium.

19. The recording method according to claim 11 , wherein the recording medium is a low-absorbable recording medium or a non-absorbable recording medium.

20. A recording apparatus that performs recording by the recording method according to claim 11 .

21. A recording method comprising:
causing a processing solution that contains a coagulant for coagulating constituents of an ink composition to adhere to a recording medium;
causing an ink composition that includes a light ink composition and a dark ink composition that belong to a same color system and have mutually different color densities to adhere to the recording medium; and
causing a clear ink composition that includes resin to adhere to the recording medium,
wherein the clear ink composition includes the resin in a form of fine resin particles, and
a volume average particle diameter after mixing a water dispersion of the fine resin particles with a 0.3M magnesium sulfate aqueous solution is equal to or less than three times as large as a volume average particle diameter before the mixing.

22. The recording method according to claim 21 , wherein a content of the resin included in the clear ink composition is equal to or greater than 3% by mass.

23. The recording method according to claim 21 , wherein one or more kinds of any of cationic resin, organic acids, and polyvalent metal salts are included as the coagulant included in the processing solution.

24. The recording method according to claim 21 , wherein the light ink composition includes a nitrogen-containing solvent.

25. The recording method according to claim 21 , wherein a region in which an amount of the adhering clear ink composition is equal to or greater than 1 mg/inch 2 is included in a region, to which the processing solution, the light ink composition, and the clear ink composition are caused to adhere, on the recording medium.

26. The recording method according to claim 21 , wherein the light ink composition and the dark ink composition respectively include resin, and
a content of the resin included in the light ink composition and the dark ink composition is equal to or greater than 2% by mass.

27. The recording method according to claim 21 , wherein the light ink composition, the dark ink composition, and the clear ink composition are caused to be respectively ejected from the ink jet head and ad

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

• B41J2/01 Primary

  Ink jet · CPC title

• B41M7/0054

  using protective coatings or film forming compositions cured by thermal means, e.g. infrared radiation, heat · 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

• C09D11/106

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