US6702883B1
Expired / Lapsed
US
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Ink composition and ink set each excellent in color reproduction and light resistance, and method of recording with these
Assignee: Seiko Epson Corp
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Filing: 2000-09-12
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Granted: 2004-03-09
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Expires: 2020-09-12
Abstract
Abstract The present invention is directed to a yellow ink which can realize images possessing excellent color reproduction and waterfastness. Images possessing very excellent color reproduction and lightfastness can be realized by using a yellow ink composition comprising C.I. Pigment Yellow 128 and C.I. Pigment Yellow 110 as a colorant, or by using a yellow ink set comprising a first yellow ink composition containing C.I. Pigment Yellow 128 and a second yellow ink composition containing C.I. Pigment Yellow 110.
Inventors
- 👤 Tsuyoshi Sano
- 👤 Kiyohiko Takemoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:56
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/40
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
28 words
A yellow ink composition comprising at least C.I. Pigment Yellow 128 and C.I. Pigment Yellow 110 as a colorant and a dispersant comprising a water-soluble styrene-(meth) acrylic resin.
Claim 2
Dependent Claim
28 words
A yellow ink composition comprising at least C.I. Pigment Yellow 128 and C.I. Pigment Yellow 110 as a colorant and a dispersant comprising a water-soluble styrene-(meth) acrylic resin.
Claim 3
Dependent Claim
29 words
The ink composition according to claim 1 , wherein the weight ratio of C.I. Pigment Yellow 128 to C.I. Pigment Yellow 110 is 1 to 0.1: 0.1 to 1.
Claim 4
Dependent Claim
25 words
The ink composition according to claim 1 , wherein the content of the colorant is 1 to 5% by weight based on the ink composition.
Claim 5
Dependent Claim
17 words
The ink composition according to claim 1 , which comprises a dispersant and or a penetrating agent.
Claim 6
Dependent Claim
26 words
The ink composition according to claim 4 , wherein the penetrating agent is a lower alkyl ether of a polyhydric alcohol and/or an acetylene glycol compound.
Claim 7
Dependent Claim
30 words
The ink composition according to claim 5 , wherein the content of the lower alkyl ether of polyhydric alcohol is 1 to 20% by weight based on the ink composition.
Claim 8
Dependent Claim
27 words
The ink composition according to claim 5 , wherein the content of the acetylene glycol compound is 0.1 to 5% by weight based on the ink composition.
Claim 9
Dependent Claim
26 words
The ink composition according to claim 6 , wherein the lower alkyl ether of polyhydric alcohol is diethylene glycol monobutyl ether or triethylene glycol monobutyl ether.
Claim 10
Dependent Claim
47 words
The ink composition according to claim 5 , wherein the acetylene glycol compound is a compound represented by formula (I): wherein R 1 , R 2 , R 3 , and R 4 each independently represent a C 1-6 alkyl group and n+m is 0 to 50.
Claim 11
Dependent Claim
22 words
A recording method comprising the step of depositing the ink composition according to claim 1 onto a recording medium to perform printing.
Claim 12
Dependent Claim
36 words
The recording method according to claim 10 , which is an ink jet recording method comprising the steps of: ejecting droplets of an ink composition; and depositing the droplets onto a recording medium to perform printing.
Claim 13
Dependent Claim
12 words
A record produced by the recording method according to claim 10 .
Claim 14
Dependent Claim
35 words
An ink set comprising a yellow ink composition and a cyan ink composition, a magenta ink composition, or a black ink composition, said yellow ink composition being the ink composition according to claim 1 .
Claim 15
Dependent Claim
57 words
The ink set according to claim 13 , wherein the cyan ink composition comprises C.I. Pigment Blue 15:3 as a colorant, the magenta ink composition comprises C.I. Pigment Red 122, C.I. Pigment Red 168, C.I. Pigment Red 184, or C.I. Pigment Red 202 as a colorant, and the black ink composition comprises carbon black as a colorant.
Claim 16
Dependent Claim
34 words
A recording method comprising the step of depositing an ink composition onto a recording medium to perform printing, the ink composition being an ink composition in the ink set according to claim 14 .
Claim 17
Dependent Claim
36 words
The recording method according to claim 15 , which is an ink jet recording method comprising the steps of: ejecting droplets of an ink composition; and depositing the droplets onto a recording medium to perform printing.
Claim 18
Dependent Claim
12 words
A record produced by the recording method according to claim 15 .
Claim 19
Dependent Claim
43 words
An ink set comprising a first yellow ink composition and a second yellow ink composition, wherein the first yellow ink composition comprises C.I. Pigment Yellow 128 as a colorant, and the second yellow ink composition comprises C.I. Pigment Yellow 110 as a colorant.
Claim 20
Dependent Claim
43 words
An ink set comprising a first yellow ink composition and a second yellow ink composition, wherein the first yellow ink composition comprises C.I. Pigment Yellow 128 as a colorant, and the second yellow ink composition comprises C.I. Pigment Yellow 110 as a colorant.
Claim 21
Dependent Claim
24 words
The ink set according to claim 18 , which further comprises a cyan ink composition, a magenta ink composition, or a black ink composition.
Claim 22
Dependent Claim
57 words
The ink set according to claim 19 , wherein the cyan ink composition comprises C.I. Pigment Blue 15:3 as a colorant, the magenta ink composition comprises C.I. Pigment Red 122, C.I. Pigment Red 168, C.I. Pigment Red 184, or C.I. Pigment Red 202 as a colorant, or the black ink composition comprises carbon black as a colorant.
Claim 23
Dependent Claim
29 words
The ink set according to claim 18 , wherein the content of the colorant in the ink composition is 1 to 5% by weight based on the ink composition.
Claim 24
Dependent Claim
19 words
The ink set according to claim 18 , wherein the ink composition comprises a dispersant and/or a penetrating agent.
Claim 25
Dependent Claim
17 words
The ink set according to claim 22 , wherein the dispersant is a water-soluble styrene-(meth) acrylic resin.
Claim 26
Dependent Claim
26 words
The ink set according to claim 22 , wherein the penetrating agent is a lower alkyl ether of a polyhydric alcohol and/or an acetylene glycol compound.
Claim 27
Dependent Claim
30 words
The ink set according to claim 24 , wherein the content of the lower alkyl ether of polyhydric alcohol is 1 to 20% by weight based on the ink composition.
Claim 28
Dependent Claim
27 words
The ink set according to claim 24 , wherein the content of the acetylene glycol compound is 0.1 to 5% by weight based on the ink composition.
Claim 29
Dependent Claim
26 words
The ink set according to claim 24 , wherein the lower alkyl ether of polyhydric alcohol is diethylene glycol monobutyl ether or triethylene glycol monobutyl ether.
Claim 30
Dependent Claim
47 words
The ink set according to claim 24 , wherein the acetylene glycol compound is a compound represented by formula (I): wherein R 1 , R 2 , R 3 , and R 4 each independently represent a C 1-6 alkyl group; and n+m is o to 50.
Claim 31
Dependent Claim
26 words
A recording method comprising the step of depositing the ink composition in the ink set according to claim 18 onto a recording medium to perform printing.
Claim 32
Dependent Claim
37 words
A The recording method according to claim 29 , which is an ink jet recording method comprising the steps of: ejecting droplets of an ink composition; and depositing the droplets onto a recording medium to perform printing.
Claim 33
Dependent Claim
12 words
A record produced by the recording method according to claim 29 .
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2007-03-09 | 2007-09-08 | 2008-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-03-09 | 2011-09-08 | 2012-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-03-09 | 2015-09-08 | 2016-03-09 | $7700.00 | Window Closed / Lapsed |