Ink set for ink jet recording and ink jet recording method

Patent metadata

Field	Value
Publication number	US-8992678-B2
Application number	US-201313851510-A
Country	US
Kind code	B2
Filing date	Mar 27, 2013
Priority date	Apr 26, 2012
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

An ink set for ink jet recording is provided, the ink set containing a first ink which contains a first pigment and a second ink which contains a second pigment, wherein each of the first and second inks contains polyester-modified polydialkylsiloxane.

First claim

What is claimed is:

1. An ink set for ink jet recording, the ink set comprising:
a first ink containing a first pigment; and
a second ink containing a second pigment, wherein
each of the first and second inks contains polyester-modified polydialkylsiloxane;
the first pigment is a white pigment or a glitter pigment,
the second pigment is carbon black or an organic pigment, and
at least one of the first and second inks contains an amide compound represented by the following general formula (1),

wherein R 11 represents an alkyl group having 1 to 4 carbon atoms, and R 12 and R 13 each represent a methyl group or an ethyl group.

2. The ink set according to claim 1 , wherein each of the first and second inks is a non-aqueous ink.

3. The ink set according to claim 1 , wherein at least one of the polyester-modified polydialkylsiloxane contained in the first ink and the polyester-modified polydialkylsiloxane contained in the second ink contains a hydroxyl group.

4. The ink set according to claim 1 , wherein at least one of the first and second inks contains a dicarboxylic acid dialkyl ester represented by the following general formula (2) or a polyoxyalkylene glycol compound represented by the following general formula (3),

wherein R 21 represents an alkylene group having 2 to 5 carbon atoms, and R 22 and R 23 each independently represent an alkyl group having 1 to 4 carbon atoms,
R 32 —(OR 31 ) n —R 33   (3)

wherein R 31 represents an alkylene group having 2 or 3 carbon atoms, R 32 and R 33 each independently represent a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and n is an integer from 2 to 6.

5. The ink set according to claim 4 , wherein the polyoxyalkylene glycol compound represented by the general formula (3) is a diethylene glycol compound represented by the following general formula (4) or a dipropylene glycol compound represented by the following general formula (5),
R 34 —(OC 2 H 4 ) 2 —O—  (4)

wherein R 34 and R 35 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an R 36 CO group, and R 36 is an alkyl group having 1 to 4 carbon atoms,
R 37 —(OC 3 H 6 ) 2 —O—R 38   (5)

wherein R 37 and R 38 each independently represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an R 39 CO group, and R 39 is an alkyl group having 1 to 4 carbon atoms.

6. A recording method utilizing the ink set for ink jet recording according to claim 1 , the method comprising:
ejecting the first ink; and
ejecting the second ink.

7. A recording method utilizing the ink set for ink jet recording according to claim 2 , the method comprising:
ejecting the first ink; and
ejecting the second ink.

8. A recording method utilizing the ink set for ink jet recording according to claim 3 , the method comprising:
ejecting the first ink; and
ejecting the second ink.

9. A recording method utilizing the ink set for ink jet recording according to claim 4 , the method comprising:
ejecting the first ink; and
ejecting the second ink.

10. A recording method utilizing the ink set for ink jet recording according to claim 5 , the method comprising:
ejecting the first ink; and
ejecting the second ink.

Assignees

• Seiko Epson Corp

Inventors

• Sao Akihito
• Nagase Makoto
• Kubota Kenichiro

Classifications

• C09D11/322 Primary

  Pigment inks · CPC title

• B41J2/2107

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

• C09D11/30 Primary

  Inkjet printing inks · CPC title

• C09D11/38

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

• C09D11/40

  Ink-sets specially adapted for multi-colour inkjet printing · CPC title