US6698876B2
Expired / Lapsed
US
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Aqueous fluorescent ink, recording unit, ink cartridge, ink jet recording apparatus, and ink jet recording method
Assignee: Canon Inc
•
Filing: 2002-01-29
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Granted: 2004-03-02
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Expires: 2022-01-29
Abstract
Abstract There is provided an aqueous fluorescent ink that contains an emulsified colored resin and a water-soluble compound having ethylene oxide units that is solid at 25° C.
Inventors
- 👤 Shinichi Sato
- 👤 Shoji Koike
- 👤 Shinichi Hakamada
- 👤 Hideki Takayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:22
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/50
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
50 words
An aqueous fluorescent ink for ink jet recording comprising an emulsified resin colored with a fluorescent dye, and a water-soluble compound being solid at 25° C. and having ethylene oxide units, wherein the water-soluble compound is contained at 1 to 15% by weight of the total weight of the ink.
Claim 2
Dependent Claim
50 words
An aqueous fluorescent ink for ink jet recording comprising an emulsified resin colored with a fluorescent dye, and a water-soluble compound being solid at 25° C. and having ethylene oxide units, wherein the water-soluble compound is contained at 1 to 15% by weight of the total weight of the ink.
Claim 3
Dependent Claim
13 words
The ink of claim 1 , wherein the resin is an acrylic resin.
Claim 4
Dependent Claim
14 words
The ink of claim 1 , wherein the water-soluble compound is a polyethylene glycol.
Claim 5
Dependent Claim
17 words
The ink of claim 3 , wherein the polyethylene glycol has 25 or more ethylene oxide units.
Claim 6
Dependent Claim
26 words
The ink of claim 3 , wherein the ink contains the polyethylene glycol at 1 to 10% by weight of the total weight of the ink.
Claim 7
Dependent Claim
14 words
The ink of claim 1 , wherein the water-soluble compound is a nonionic surfactant.
Claim 8
Dependent Claim
17 words
The ink of claim 6 , wherein the nonionic surfactant has 25 or more ethylene oxide units.
Claim 9
Dependent Claim
27 words
The ink of claim 6 or 7 , wherein the nonionic surfactant is contained at 1 to 5% by weight of the total weight of the ink.
Claim 10
Dependent Claim
18 words
The ink of claim 1 , wherein the water-soluble compound is a polyethylene glycol and a nonionic surfactant.
Claim 11
Dependent Claim
27 words
A recording unit comprising an ink container storing an aqueous fluorescent ink as set forth in claim 1 and an ink jet head for discharging the ink.
Claim 12
Dependent Claim
25 words
An ink cartridge storing an aqueous fluorescent ink as set forth in any one of claims 1 , 2 , or 3 to 9 .
Claim 13
Dependent Claim
29 words
An ink jet recording apparatus comprising an ink container storing an aqueous fluorescent ink as set forth in claim 1 and an ink jet head for discharging the ink.
Claim 14
Dependent Claim
20 words
The ink jet recording apparatus of claim 12 , wherein the ink jet head is a thermal ink jet head.
Claim 15
Dependent Claim
25 words
An ink jet recording method comprising the step of discharging an aqueous fluorescent ink as set forth in claim 1 by an ink jet method.
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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) | 2007-03-02 | 2007-09-01 | 2008-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-03-02 | 2011-09-01 | 2012-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-03-02 | 2015-09-01 | 2016-03-02 | $7700.00 | Window Closed / Lapsed |