Ink jet recording method

Patent metadata

Field	Value
Publication number	US-2016368285-A1
Application number	US-201615168513-A
Country	US
Kind code	A1
Filing date	May 31, 2016
Priority date	Jun 19, 2015
Publication date	Dec 22, 2016
Grant date	—

Abstract

An ink jet recording method including the steps of applying onto a recording medium a treatment liquid containing a component which causes ink viscosity increase and a compound A having a polyalkylene glycol ether structure and having only one hydroxy group; and applying an ink onto the recording medium. The cloud point of the compound A measured by using a 1% by mass concentration aqueous solution of the compound A is 50° C. or more.

First claim

What is claimed is:

1 . An ink jet recording method comprising the steps of:
applying onto a recording medium a treatment liquid containing a component which causes ink viscosity increase and a compound A having a polyalkylene glycol ether structure and having only one hydroxy group; and applying an ink onto the recording medium, wherein a cloud point of the compound A measured by using a 1% by mass concentration aqueous solution of the compound A is 50° C. or more.

2 . The ink jet recording method according to claim 1 , wherein the compound A is represented by the following general formula (1):
C n H 2n+1 —[(OCH(CH 3 )CH 2 ) x (OCH 2 OH 2 ) y ]—OH  (1)

where n is an integer of 8 or more to 16 or less, x is an integer of 0 or more to 8 or less, and y is an integer of 6 or more to 20 or less.

3 . The ink jet recording method according to claim 1 , further comprising the step of drying the ink applied onto the recording medium.

4 . The ink jet recording method according to claim 1 , further comprising the step of fixing the ink applied on the recording medium.

5 . The ink jet recording method according to claim 1 , wherein
a content of the compound A in the treatment liquid is 0.1% by mass or more to 10% by mass or less, and a content of organic acid contained in the treatment liquid and serving as the component which causes ink viscosity increase is 30% by mass or more to 99% by mass or less.

6 . The ink jet recording method according to claim 5 , wherein the treatment liquid further contains a polyvalent metal salt in a content of 2% by mass or more to 90% by mass or less.

7 . The ink jet recording method according to claim 5 , wherein the treatment liquid further contains water and an organic solvent.

8 . The ink jet recording method according to claim 7 , wherein the organic solvent is selected from the group consisting of a water-soluble organic solvent having no hydroxy group, an organic solvent having only one hydroxy group and having an SP value of 23 or less, and a polyhydric alcohol having an SP value of 30 or more.

9 . The ink jet recording method according to claim 1 , wherein after the step of applying the treatment liquid onto the recording medium, the step of applying the ink onto the recording medium is performed with the treatment liquid remaining on the recording medium.

10 . The ink jet recording method according to claim 1 , wherein after the step of applying the ink onto the recording medium, the step of applying the treatment liquid onto the recording medium is performed before the ink dries.

Assignees

• Canon Kk

Inventors

• Shinjo Kenji
• Torisaka Yoshitaka
• Sakurada Shinichi

Classifications

• B41J2/2107

  characterised by the ink properties (supplying ink in a solid state B41J2/17593) · CPC title

• B41J2/01 Primary

  Ink jet · 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

• 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