Ink Jet Printing Method

Patent metadata

Field	Value
Publication number	US-2019255869-A1
Application number	US-201916278345-A
Country	US
Kind code	A1
Filing date	Feb 18, 2019
Priority date	Feb 19, 2018
Publication date	Aug 22, 2019
Grant date	—

Abstract

The ink jet printing method includes applying an aqueous coloring ink composition onto a printing surface of a printing medium by being ejected from an ink jet head. The printing surface of the printing medium contains natural fibers and synthetic fibers.

First claim

What is claimed is:

1 . An ink jet printing method comprising:
applying an aqueous coloring ink composition onto a printing surface of a printing medium by ejecting the aqueous coloring ink composition from an ink jet head, the printing surface containing natural fibers and synthetic fibers.

2 . The ink jet printing method according to claim 1 , further comprising applying a treatment liquid onto the printing surface, the treatment liquid containing a flocculant capable of forming a floc of at least one constituent of the aqueous coloring ink composition.

3 . The ink jet printing method according to claim 1 , further comprising applying an aqueous clear ink composition containing resin particles onto the printing surface.

4 . The ink jet printing method according to claim 2 , wherein the treatment liquid has a surface tension of 15 mN/m to 30 mN/m, and the aqueous coloring ink composition has a surface tension at 25° C. in the range of −5 mN/m to +5 mN/m with respect to the surface tension of the treatment liquid at 25° C.

5 . The ink jet printing method according to claim 1 , wherein the printing medium is heated when the aqueous coloring ink composition is applied thereon.

6 . The ink jet printing method according to claim 1 , wherein the printing medium has a basis weight of 70 g/m 2 to 300 g/m 2 .

7 . The ink jet printing method according to claim 2 , wherein the treatment liquid is applied onto a printing region in a proportion of 5% by mass to 40% by mass relative to the aqueous coloring ink composition.

8 . The ink jet printing method according to claim 3 , wherein the aqueous clear ink composition is applied to a printing region in a proportion of 5% by mass to 50% by mass relative to the aqueous coloring ink composition.

9 . The ink jet printing method according to claim 1 , wherein the aqueous coloring ink composition is applied to a printing region at a rate of 5 mg/inch 2 to 40 mg/inch 2 .

10 . The ink jet printing method according to claim 1 , wherein the printing medium has a surface temperature of 25° C. to 60° C. when the aqueous coloring ink composition is applied thereon.

11 . The ink jet printing method according to claim 2 , wherein the treatment liquid has a lower surface tension at 25° C. than the aqueous coloring ink composition.

12 . The ink jet printing method according to claim 1 , wherein the aqueous coloring ink composition contains a solvent containing nitrogen.

Assignees

• Seiko Epson Corp

Inventors

• Asakawa Yuta
• Okuda Ippei
• Matsuzaki Akiko

Classifications

• B41M5/0047

  by ink-jet printing · CPC title

• B41M7/0018

  using ink-fixing material, e.g. mordant, precipitating agent, after printing, e.g. by ink-jet printing, coating or spraying · 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

• B41M5/0064

  on plastics, horn, rubber, or other organic polymers · 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