US5846306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink set for ink jet recording and ink jet recording method using the same
Assignee: Seiko Epson Corp
•
Filing: 1996-12-06
•
Granted: 1998-12-08
•
Expires: 2016-12-06
Abstract
Abstract A cyan ink, for ink jet recording, capable of realizing good lightfastness and waterfastness and, in addition, capable of realizing a good image, especially an image having good hue, and an ink set comprising the above cyan ink in combination with a magenta ink and a yellow ink are provided. The use of a combination of C.I. Pigment Blue 60, 22, 64, or 21 with C.I. Pigment Blue 15:3 as a cyan ink enables the formation of a good image. An ink set comprising this cyan ink composition in combination with a yellow ink comprising C.I. Pigment Yellow 109 and C.I. Pigment Yellow 110 and a magenta ink comprising C.I. Pigment Red 122 or C.I. Pigment Red 209 can realize a good image.
Inventors
- 👤 Kazuhide Kubota
- 👤 Kiyohiko Takemoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:51
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/40; C09D11/54
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
39 words
A cyan ink composition for ink jet recording, comprising at least one pigment represented by the following formula (I): ##STR6## wherein x is an integer of 0 to 3; and a pigment represented by the following formula (II): ##STR7##
Claim 2
Dependent Claim
39 words
A cyan ink composition for ink jet recording, comprising at least one pigment represented by the following formula (I): ##STR6## wherein x is an integer of 0 to 3; and a pigment represented by the following formula (II): ##STR7##
Claim 3
Dependent Claim
25 words
The cyan ink composition according to claim 1, wherein the pigment represented by the formula (I) is C.I. Pigment Blue 60, 22, 64, or 21.
Claim 4
Dependent Claim
21 words
The cyan ink composition according to claim 1, wherein the pigment represented by the formula (II) is C.I. Pigment Blue 15:3.
Claim 5
Dependent Claim
32 words
The cyan ink composition according to claim 1, wherein the weight ratio of the pigment represented by the formula (I) to the pigment represented by the formula (II) is 1:2 to 1:10.
Claim 6
Dependent Claim
14 words
The cyan ink composition according to claim 1, which further comprises a resin emulsion.
Claim 7
Dependent Claim
46 words
A yellow ink composition for ink jet recording, comprising a pigment represented by the following formula (III): ##STR8## wherein Y 1 to Y 8 each independently represents a chlorine or hydrogen atom and R represents o-phenylene or 2,6-xylyl, or C.I. Pigment Yellow 138, 150 or 180.
Claim 8
Dependent Claim
46 words
A yellow ink composition for ink jet recording, comprising a pigment represented by the following formula (III): ##STR8## wherein Y 1 to Y 8 each independently represents a chlorine or hydrogen atom and R represents o-phenylene or 2,6-xylyl, or C.I. Pigment Yellow 138, 150 or 180.
Claim 9
Dependent Claim
27 words
The yellow ink composition according to claim 6, which comprises C.I. Pigment Yellow 109 and C.I. Pigment Yellow 110 as the pigment represented by the formula (III).
Claim 10
Dependent Claim
26 words
The yellow ink composition according to claim 7, wherein the weight ratio of C.I. Pigment Yellow 109 to C.I. Pigment Yellow 110 is 60:40 to 99:1.
Claim 11
Dependent Claim
14 words
The yellow ink composition according to claim 6, which further comprises a resin emulsion.
Claim 12
Dependent Claim
31 words
An ink set for ink jet recording, comprising a cyan ink composition, a magenta ink composition, and a yellow ink composition, the cyan ink composition being one according to claim 1.
Claim 13
Dependent Claim
31 words
An ink set for ink jet recording, comprising a cyan ink composition, a magenta ink composition, and a yellow ink composition, the yellow ink composition being one according to claim 6.
Claim 14
Dependent Claim
43 words
The ink set according to claim 10, wherein the magenta ink composition comprises, as a colorant, a pigment represented by the following formula (IV): ##STR9## wherein X 1 to X 10 each independently represent a hydrogen or chlorine atom or a methyl group.
Claim 15
Dependent Claim
30 words
The ink set according to claim 12, wherein the pigment represented by the formula (IV) in the magenta ink composition is C.I. Pigment Red 122 or C.I. Pigment Red 209.
Claim 16
Dependent Claim
22 words
The ink set according to claim 13, wherein the cyan ink composition comprises C.I. Pigment Blue 60 or C.I. Pigment Blue 15:3.
Claim 17
Dependent Claim
17 words
The ink set according to claim 12, wherein the magenta ink composition further comprises a resin emulsion.
Claim 18
Dependent Claim
46 words
The ink set according to claim 10, wherein the concentration of the magenta pigment in the magenta ink composition and the concentration of the yellow pigment in the yellow ink composition each are higher than the concentration of the cyan pigment in the cyan ink composition.
Claim 19
Dependent Claim
68 words
The ink set according to claim 16, wherein the pigment concentration is not more than 6% by weight for all the ink compositions and the ratio of the pigment concentration (% by weight) of the cyan ink composition to the pigment concentration (% by weight) of the magenta ink composition to the pigment concentration (% by weight) of the yellow ink composition is 1:1 to 2:1 to 3.
Claim 20
Dependent Claim
57 words
A method for ink jet recording, comprising the step of: depositing a reaction solution containing a reactant and an ink composition onto a recording medium to conduct printing, wherein the ink composition is the cyan ink composition according to claim 1, and the reactant breaks the state of dispersion and/or dissolution of the pigment to cause agglomeration.
Claim 21
Dependent Claim
54 words
A method for ink jet recording, comprising the step of: depositing a reaction solution containing a reactant and an ink composition onto a recording medium, wherein the ink composition is the yellow ink composition according to claim 6, and the reactant breaks the state of dispersion and/or dissolution of the pigment to cause agglomeration.
Claim 22
Dependent Claim
55 words
A method for ink jet recording, comprising the step of: depositing a reaction solution containing a reactant and an ink composition onto a recording medium, wherein the ink composition is one in the ink set according to claim 10, and the reactant breaks the state of dispersion and/or dissolution of the pigment to cause agglomeration.
Claim 23
Dependent Claim
38 words
The method according to claim 18, wherein the step of ejecting droplets of the ink composition onto the recording medium to record an image is performed after the step of depositing the reaction solution onto the recording medium.
Claim 24
Dependent Claim
38 words
The method according to claim 18, wherein the step of ejecting droplets of the ink composition onto the recording medium to record an image is performed before the step of depositing the reaction solution onto the recording medium.
Claim 25
Dependent Claim
16 words
The method according to claim 18, wherein the reactant is a polyvalent metal salt and/or polyallylamine.
Claim 26
Dependent Claim
24 words
The method according to claim 23, wherein the polyvalent metal salt is a salt of nitric acid or a salt of a carboxylic acid.
Claim 27
Dependent Claim
10 words
A record printed by the method according to claim 18.
Claim 28
Dependent Claim
74 words
An ink set for ink jet recording, comprising a cyan ink composition, a magenta ink composition, and a yellow ink composition, the cyan ink composition being one according to claim 1, the yellow ink composition comprising a pigment represented by the following formula (III): ##STR10## wherein Y 1 to Y 8 each independently represent a chlorine or hydrogen atom and R represents o-phenylene or 2,6-xylyl, or C.I. Pigment Yellow 74, 138, 150 or 180.
Claim 29
Dependent Claim
45 words
The ink set according to claim 16, wherein the concentration of magenta pigment in the magenta ink composition and the concentration of the yellow pigment in the yellow ink composition each is higher than the concentration of the cyan pigment in the cyan ink composition.
References Cited (Backward Citations)
US4784905A
Cited
EP0302973A1
Cited
JPH0356573A
Cited
JPH0379680A
Cited
JPH0379678A
Cited
JPH03160068A
Cited
JPH03252467A
Cited
EP0448055A2
Cited
JPH0418462A
Cited
JPH05202328A
Cited
JPH05155006A
Cited
JPH05239373A
Cited
US5420187A
Cited
JPH06106735A
Cited
EP0618279A2
Cited
EP0663299A2
Cited
EP0697445A2
Cited
US5549740A
Cited
US5624484A
Cited
US5658376A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-12-07 | 2002-06-08 | 2002-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-12-07 | 2006-06-08 | 2006-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-12-07 | 2010-06-08 | 2010-12-08 | $7700.00 | Window Closed / Lapsed |