Ink jet recording method

Patent metadata

Field	Value
Publication number	US-9789705-B2
Application number	US-201615084718-A
Country	US
Kind code	B2
Filing date	Mar 30, 2016
Priority date	Apr 24, 2015
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

Abstract

An ink jet recording method in which an image is formed by applying onto a recording medium a reaction liquid, an aqueous pigment ink containing an anionic polymer aggregatable by the reaction liquid and a resin-containing aqueous liquid containing an anionic polymer aggregatable by the reaction liquid to form an image, the method including the steps of applying the reaction liquid to the recording medium; applying the aqueous pigment ink to a surface of the recording medium to which the reaction liquid is applied by an ink jet method to form an image; and applying the resin-containing aqueous liquid to the image formed on the recording medium by the ink jet method. The surface tension of the resin-containing aqueous liquid is higher than the surface tension of the aqueous pigment ink.

First claim

What is claimed is:

1. An ink jet recording method in which an image is formed by applying onto a recording medium a reaction liquid, an aqueous pigment ink containing an anionic polymer aggregatable by the reaction liquid and a resin-containing aqueous liquid containing an anionic polymer aggregatable by the reaction liquid to form an image, the method comprising the steps of:
applying the reaction liquid to the recording medium;
applying the aqueous pigment ink to a surface of the recording medium to which the reaction liquid is applied by an ink jet method to form an image; and
applying the resin-containing aqueous liquid to the image formed on the recording medium by the ink jet method,
wherein a surface tension of the resin-containing aqueous liquid is higher than a surface tension of the aqueous pigment ink.

2. The ink jet recording method according to claim 1 , wherein the surface tension of the resin-containing aqueous liquid is 3 mN/m or more higher than the surface tension of the aqueous pigment ink.

3. The ink jet recording method according to claim 1 , wherein the surface tension of the resin-containing aqueous liquid is 5 mN/m or more higher than the surface tension of the aqueous pigment ink.

4. The ink jet recording method according to claim 1 , wherein the recording medium is cast-coated paper.

5. The ink jet recording method according to claim 1 , wherein the anionic polymer is a water-soluble resin having a weight-average molecular weight of 5,000 or more and 10,000 or less.

6. The ink jet recording method according to claim 1 , further comprising a step of removing water from the image formed on the recording medium after the step of applying the resin-containing aqueous liquid.

7. An ink jet recording method in which an image is formed by applying onto a first recording medium a reaction liquid, an aqueous pigment ink containing an anionic polymer aggregatable by the reaction liquid and a resin-containing aqueous liquid containing an anionic polymer aggregatable by the reaction liquid followed by transferring the intermediate image formed on the first recording medium to a second recording medium, the method comprising the steps of:
applying the reaction liquid to the first recording medium;
applying the aqueous pigment ink to a surface of the first recording medium to which the reaction liquid is applied by an ink jet method to form an image; and
applying the resin-containing aqueous liquid to the image formed on the first recording medium by the ink jet method,
wherein a surface tension of the resin-containing aqueous liquid is higher than a surface tension of the aqueous pigment ink.

8. The ink jet recording method according to claim 7 , wherein the surface tension of the resin-containing aqueous liquid is 3 mN/m or more higher than the surface tension of the aqueous pigment ink.

9. The ink jet recording method according to claim 7 , wherein the surface tension of the resin-containing aqueous liquid is 5 mN/m or more higher than the surface tension of the aqueous pigment ink.

10. The ink jet recording method according to claim 7 , wherein the first recording medium is a transfer member, and the transfer member has a support member and a surface layer member on the support member.

11. The ink jet recording method according to claim 10 , wherein the surface layer member comprises a siloxane compound.

12. The ink jet recording method according to claim 7 , wherein the second recording medium is cast-coated paper.

13. The ink jet recording method according to claim 7 , wherein the anionic polymer comprises a water-soluble resin having a weight-average molecular weight of 5,000 or more and 10,000 or less.

14. The ink jet recording method according to claim 7 , further comprising a step of removing water from the intermediate image formed on the first recording medium after the step of applying the resin-containing aqueous liquid.

Assignees

• Canon Kk

Inventors

• Takeuchi Keiichirou
• Nakazawa Koichiro
• Goto Fumihiro
• Nishitani Eisuke
• Soma Kanako
• Otani Takumi

Classifications

• B41M5/0256

  the transferable ink pattern being obtained by means of a computer driven printer, e.g. an ink jet or laser printer, or by electrographic means · CPC title

• B41M5/0017 Primary

  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

• C09D133/06

  of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical · CPC title

• C09D125/14

  with unsaturated esters · CPC title

• 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