Inkjet recording method and inkjet recording device

Patent metadata

Field	Value
Publication number	US-9505234-B2
Application number	US-201414152431-A
Country	US
Kind code	B2
Filing date	Jan 10, 2014
Priority date	Jan 10, 2013
Publication date	Nov 29, 2016
Grant date	Nov 29, 2016

Abstract

An inkjet recording method includes forming an image on a coated layer provided at least one side of the substrate of a recording medium with ink containing a colorant; and then applying a post-processing fluid comprising a resin to the image; wherein the application amount per unit area of the post-processing fluid to the image is controlled to be less than the application amount per unit area of the ink to form the image.

First claim

What is claimed is:

1. An inkjet recording method comprising:
forming an image on a coated layer provided at least one side of a substrate of a recording medium with ink comprising a colorant; and then
applying a post-processing fluid comprising a resin to the image already formed by the ink;
wherein an application amount per unit area of the post-processing fluid to the image already formed by the ink is controlled to be less than an application amount per unit area of the ink that forms the image,
wherein the application amount of the post-processing fluid applied on the image already formed by the ink is in a range from 5% by volume to 30% by volume of the application amount of the ink that forms the image, and
wherein the resin comprises a urethane resin and a vinyl polymer, and a content of the resin comprising the urethane resin and the vinyl polymer is from 3% by weight to 10% by weight based on a total amount of the post-processing fluid.

2. The inkjet recording method according to claim 1 , wherein an application area of the post-processing fluid ranges from 5% to 30% of an application area of the ink applied to form the image.

3. The inkjet recording method according to claim 1 , wherein the post-processing fluid comprises a polyethylene wax.

4. The inkjet recording method according to claim 1 , wherein the post-processing fluid comprises a polyether-modified polydimethyl siloxane.

5. The inkjet recording method according to claim 1 , further comprising: processing the coated layer with a pre-processing fluid prior to the step of forming the image with the ink.

6. The inkjet recording method according to claim 5 , wherein the pre-processing fluid comprises a hydrosoluble aliphatic organic acid.

7. The inkjet recording method according to claim 1 , further comprising heating the recording medium after the step of applying the post-processing liquid to the recording medium.

8. An inkjet recording device comprising:
an ink container to accommodate ink;
a recording head to discharge ink to form an image on a recording medium; and
a post-processing fluid supplying device to apply droplets of a post-processing fluid comprising a resin onto the image already formed by the ink,
wherein an application amount of the post-processing fluid applied on the image already formed by the ink is in a range from 5% by volume to 30% by volume of an application amount of the ink that forms the image, and
wherein the resin comprises a urethane resin and a vinyl polymer, and a content of the resin comprising the urethane resin and the vinyl polymer is from 3% by weight to 10% by weight based on a total amount of the post-processing fluid.

9. An inkjet recording method comprising:
forming, with a full-line type recording head, an image on a coated layer provided at least one side of a substrate of a recording medium with ink comprising a colorant; and then
applying a post-processing fluid comprising a resin to the image already formed by the ink on the recording medium, and controlling an application amount per unit area of the post-processing fluid to the image already formed by the ink, to be less than an application amount per unit area of the ink to form the image,
wherein an application area of the post-processing fluid applied on the image already formed by the ink is in a range from 5% to 30% of an application area of the ink that forms the image, and
wherein the resin comprises a urethane resin and a vinyl polymer, and a content of the resin comprising the urethane resin and the vinyl polymer is from 3% by weight to 10% by weight based on a total amount of the post-processing fluid.

10. The inkjet recording method according to claim 9 , wherein the application amount of the post-processing fluid ranges from 5% by volume to 30% by volume of the application amount of the ink to form the image.

11. The inkjet recording method according to claim 9 , wherein the post-processing fluid comprises a polyethylene wax.

12. The inkjet recording method according to claim 9 , wherein the post-processing fluid comprises a polyether-modified polydimethyl siloxane.

13. The inkjet recording method according to claim 9 , further comprising: processing the coated layer with a pre-processing fluid prior to the step of forming the image with the ink.

14. The inkjet recording method according to claim 13 , wherein the pre-processing fluid comprises a hydrosoluble aliphatic organic acid.

15. The inkjet recording method according to claim 9 , further comprising: heating the recording medium after the step of applying the post-processing liquid to the recording medium.

Assignees

• Bannai Akiko
• Nagashima Hidefumi
• Kojima Mariko
• Namba Michihiko
• Ricoh Co Ltd

Inventors

• Bannai Akiko
• Nagashima Hidefumi
• Kojima Mariko
• Namba Michihiko

Classifications

• B41J11/0015 Primary

  for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing (selective coating B41J2/2114) · CPC title

• B41M7/0036

  using protective coatings or layers dried without curing · CPC title

• B41J2/2114

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