Ink composition, ink set, and recording method

Patent metadata

Field	Value
Publication number	US-10550277-B2
Application number	US-201715632811-A
Country	US
Kind code	B2
Filing date	Jun 26, 2017
Priority date	Jun 27, 2016
Publication date	Feb 4, 2020
Grant date	Feb 4, 2020

Abstract

An ink composition contains a first dye represented by formula (I)

and a second dye represented by formula (II)

First claim

What is claimed is:

1. An ink set comprising:
a first ink composition;
a yellow ink composition containing C.I. Reactive Yellow 95 or C.I. Reactive Yellow 2;
a cyan ink composition containing C.I. Reactive Blue 72 or C.I. Reactive Blue 15:1; and
a black ink composition containing C.I. Reactive Black 39,
wherein the first ink composition includes:
at least one first dye represented by formula (I),

where R 1 denotes

R 2 denotes H, CH 3 or C 2 H 5 , and
R 3 denotes H or

where X denotes H, Li, Na, or K,
with possible binding sites labeled with an asterisk; and
at least one second dye represented by formula (II),

where R 1 denotes SO 3 X or

R 2 , R 3 , and R 4 each independently denote H, SO 3 X, a halogen, or

and
X denotes H, Li, Na, or K,
with possible binding sites labeled with an asterisk.

2. The ink set according to claim 1 , wherein
the first ink composition has a pH of 6.0 or more and 8.5 or less.

3. The ink set according to claim 1 , wherein the first ink composition further comprises a pH-adjusting agent.

4. The ink set according to claim 1 , wherein the first ink composition contains no or up to 5% by mass, of a total amount of the first ink composition, polyhydric alcohols with boiling points higher than 260° C.

5. The ink set according to claim 1 , wherein in the first ink composition:
the at least one first dye is selected from C.I. Reactive Red 141, C.I. Reactive Red 24:1, and C.I. Reactive Red 245; and
the at least one second dye is selected from C.I. Reactive Violet 1 and C.I. Reactive Violet 33.

6. An ink set comprising:
the first ink composition according to claim 2 ;
a yellow ink composition containing C.I. Reactive Yellow 95 or C.I. Reactive Yellow 2;
a cyan ink composition containing C.I. Reactive Blue 72 or C.I. Reactive Blue 15:1; and
a black ink composition containing C.I. Reactive Black 39.

7. An ink set comprising:
the first ink composition according to claim 3 ;
a yellow ink composition containing C.I. Reactive Yellow 95 or C.I. Reactive Yellow 2;
a cyan ink composition containing C.I. Reactive Blue 72 or C.I. Reactive Blue 15:1; and
a black ink composition containing C.I. Reactive Black 39.

8. An ink set comprising:
the first ink composition according to claim 4 ;
a yellow ink composition containing C.I. Reactive Yellow 95 or C.I. Reactive Yellow 2;
a cyan ink composition containing C.I. Reactive Blue 72 or C.I. Reactive Blue 15:1; and
a black ink composition containing C.I. Reactive Black 39.

9. An ink set comprising:
the first ink composition according to claim 5 ;
a yellow ink composition containing C.I. Reactive Yellow 95 or C.I. Reactive Yellow 2;
a cyan ink composition containing C.I. Reactive Blue 72 or C.I. Reactive Blue 15:1; and
a black ink composition containing C.I. Reactive Black 39.

10. A recording method comprising ejecting at least one ink composition from the ink set according to claim 1 from an ink jet recording head that has a nozzle plate containing fluorine in at least part of a surface thereof and having siloxane bonds less than 1 μm beneath the surface.

11. A recording method comprising ejecting the first ink composition according to claim 2 from an ink jet recording head that has a nozzle plate containing fluorine in at least part of a surface thereof and having siloxane bonds less than 1 μm beneath the surface.

12. A recording method comprising ejecting the first ink composition according to claim 3 from an ink jet recording head that has a nozzle plate containing fluorine in at least part of a surface thereof and having siloxane bonds less than 1 μm beneath the surface.

13. A recording method comprising ejecting the first ink composition according to claim 4 from an ink jet recording head that has a nozzle plate containing fluorine in at least part of a surface thereof and having siloxane bonds less than 1 μm beneath the surface.

14. A recording method comprising ejecting the first ink composition according to claim 5 from an ink jet recording head that has a nozzle plate containing fluorine in at least part of a surface thereof and having siloxane bonds less than 1 μm beneath the surface.

15. An ink composition for ink jet textile printing, the ink composition comprising:
at least one first dye represented by formula (I),

where R 1 denotes

R 2 denotes CH 3 or C 2 H 5 , and
R 3 denotes H, or

where X denotes H, Li, Na, or K,
with possible binding sites labeled with an asterisk; and
at least one second dye represented by formula (II),

where R 1 denotes SO 3 X or

R 2 , R 3 , and R 4 each independently denote H, SO 3 X, a halogen, or

and
X denotes H, Li, Na, or K,
with possible binding sites labeled with an asterisk.

16. An ink composition for ink jet textile printing, the ink composition comprising:
at least one first dye represented by formula (I),

where R 1 denotes

R 2 denotes H, CH 3 , or C 2 H 5 , and
R 3 denotes H or

where X denotes H, Li, Na, or K,
with possible binding sites labeled with an asterisk; and
at least one second dye represented by formula (II),

with possible binding sites labeled with an asterisk.

Assignees

• Seiko Epson Corp

Inventors

• Komatsu Hidehiko
• Oki Yasuhiro
• Sakuma Daisuke
• Kaneko Hiroyuki
• WAKUSHIMA Yuki

Classifications

• C07D253/02

  not condensed with other rings · CPC title

• D06P5/30

  Ink jet printing · CPC title

• D06P3/148

  using reactive dyes · CPC title

• C09D11/107 Primary

  from unsaturated acids or derivatives thereof · CPC title

• B41J2/01

  Ink jet · CPC title