Coating liquid for ink jet and ink jet recording method using the same

Patent metadata

Field	Value
Publication number	US-9511602-B2
Application number	US-201514665404-A
Country	US
Kind code	B2
Filing date	Mar 23, 2015
Priority date	Jul 29, 2011
Publication date	Dec 6, 2016
Grant date	Dec 6, 2016

Abstract

A coating liquid comprising: an oxazoline group-containing resin; an alkanediol having 7 or more carbon atoms; a surfactant; and water.

First claim

What is claimed is:

1. An ink jet recording method using an ink jet recording apparatus having a head, in which the head is equipped with nozzle rows including a plurality of nozzle holes, the method comprising:
discharging liquid droplets of a coating liquid comprising
an oxazoline group-containing resin;
an alkanediol having 7 or more carbon atoms;
a surfactant; and
water from the nozzle holes;

attaching the liquid droplets onto a recording medium to form dots including the liquid droplets;
repeating the discharging and the attaching plural times to form a coating layer on the recording medium;
discharging liquid droplets of a color ink composition including a colorant and water from the nozzle holes; and
attaching the liquid droplets onto the coating layer to form a color image.

2. The ink jet recording method according to claim 1 , wherein the coating liquid further comprises a carboxyl group-containing resin.

3. The ink jet recording method according to claim 1 ,
wherein the alkanediol of the coating liquid has 7 or more carbon atoms is at least one selected from the group consisting of 1,2-heptanediol, 1,2-octanediol, 4,4-dimethyl-1,2-pentanediol, 5-methyl-1,2-hexanediol, and 4-methyl-1,2-hexanediol.

4. The ink jet recording method according to claim 1 ,
wherein the surfactant of the coating liquid is at least one of a polyorganosiloxane-based surfactant and a fluorine-based surfactant.

5. The ink jet recording method according to claim 1 , wherein the coating liquid further comprises at least one of oxyalkylene glycols and glycol ethers from the nozzle holes.

6. The ink jet recording method according to claim 1 ,
wherein a plurality of nozzle rows are aligned;
the coating layer formed in the repeating above has a dot interval with an image resolution of 300 dpi or more in the alignment direction of the nozzle rows;
the mass of the liquid droplets discharged in the discharging is from 1 ng to 15 ng; and
the diameter of the dots formed in the attaching is larger than the dot interval.

7. The ink jet recording method according to claim 1 ,
further comprising drying the recording medium.

8. The ink jet recording method according to claim 1 ,
wherein the coating layer is formed on the entire surface of the recording medium.

9. The ink jet recording method according to claim 1 ,
wherein the recording medium is a non-ink-absorbing recording medium.

10. The ink jet recording method according to claim 1 wherein the recording medium is a coated paper provided with a coating layer for receiving oil-based ink on its surface.

11. The ink jet recording method according to claim 10 wherein the coated paper provided with a coating layer on its surface is print paper, art paper, and matte paper.

Assignees

• Seiko Epson Corp

Inventors

• Koganehira Shuichi
• Yamamoto Shinichi

Classifications

• C08L83/04

  Polysiloxanes · 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

• B41M5/0011

  Pre-treatment or treatment during printing of the recording material, e.g. heating, irradiating (after-treatment of prints B41M7/00; printers for treating or overcoating copy materials before, during or after printing B41J11/0015) · CPC title

• C09D11/38

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

• C09D137/00 Primary

  Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a heterocyclic ring containing oxygen (based on polymers of cyclic esters of polyfunctional acids C09D131/00; based on polymers of cyclic anhydrides of unsaturated acids C09D135/00); Coating compositions based on derivatives of such polymers · CPC title