Patent US7244299B2 successfully refreshed from Google Patents.
US7244299B2
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Ink jet recording ink, ink jet recording method, ink cartridge, and ink jet recording apparatus
Assignee: Canon Inc
•
Filing: 2005-09-26
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Granted: 2007-07-17
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Expires: 2025-09-26
Abstract
Abstract An ink jet recording ink comprising at least a copper phthalocyanine dye represented by the following general formula (1) and a compound represented by the following general formula (2):
Inventors
- 👤 Itaru Tsuji
- 👤 Shinichi Tochihara
- 👤 Hiroshi Tomioka
- 👤 Koichi Osumi
- 👤 Hiroyuki Takuhara
- 👤 Minako Kawabe
- 👤 Hideki Yamakami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:01
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/328
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
376 words
An ink jet recording ink comprising at least a copper phthalocyanine dye represented by the following general formula (1) and a compound represented by the following general formula (2): wherein M represents an alkali metal or ammonium, R 7 represents OH, COOM, or R 8 COOM in which R 8 represents an alkyl group having 4 to 9 carbon atoms and M represents an alkali metal or ammonium, and x, y, and z each independently represent an integer of 0 to 4, wherein R 1 and R 2 each independently represent a substituted or unsubstituted alkyl group, aryl group, or arylalkyl group, or a hydrogen atom, R 3 and R 5 each independently represent a carboxyl group or a salt thereof, a sulfonic group or a salt thereof, a phosphate group or a salt thereof, or an alkyl group in which any one of these groups is substituted, R 4 and R 6 each independently represent a group except those defined for R 3 and R 5 , p and r each independently represent an integer of 1 to 5, q and s each independently represent an integer of 0 to 4, and p+q≦5 and r+s≦5; wherein the content of the compound represented by the general formula (2) is 0.1 mass % or more and 3.0 mass % or less with respect to the total mass of the ink jet recording ink; wherein the content of the compound represented by the general formula (1) is 0.5 mass % or more and 5.0 mass % or less with respect to the total mass of the ink jet recording ink; and wherein an absorption spectrum of the copper phthalocyanine dye represented by the general formula (1) satisfies the following conditions (1) and (2): (1) the absorption spectrum has peaks in both a wavelength range of 600 nm to 640 nm and a wavelength range of 650 nm to 680 nm, and (2) the ratio between peak values of the absorption spectrum satisfies the following relationship: B/A < 0.75 wherein ‘A’ represents a peak value of the absorption spectrum in the wavelength range of 600 nm to 640 nm, and ‘B’ represents a peak value of the absorption spectrum in the wavelength range of 650 nm to 680 nm.
Claim 2
Dependent Claim
376 words
An ink jet recording ink comprising at least a copper phthalocyanine dye represented by the following general formula (1) and a compound represented by the following general formula (2): wherein M represents an alkali metal or ammonium, R 7 represents OH, COOM, or R 8 COOM in which R 8 represents an alkyl group having 4 to 9 carbon atoms and M represents an alkali metal or ammonium, and x, y, and z each independently represent an integer of 0 to 4, wherein R 1 and R 2 each independently represent a substituted or unsubstituted alkyl group, aryl group, or arylalkyl group, or a hydrogen atom, R 3 and R 5 each independently represent a carboxyl group or a salt thereof, a sulfonic group or a salt thereof, a phosphate group or a salt thereof, or an alkyl group in which any one of these groups is substituted, R 4 and R 6 each independently represent a group except those defined for R 3 and R 5 , p and r each independently represent an integer of 1 to 5, q and s each independently represent an integer of 0 to 4, and p+q≦5 and r+s≦5; wherein the content of the compound represented by the general formula (2) is 0.1 mass % or more and 3.0 mass % or less with respect to the total mass of the ink jet recording ink; wherein the content of the compound represented by the general formula (1) is 0.5 mass % or more and 5.0 mass % or less with respect to the total mass of the ink jet recording ink; and wherein an absorption spectrum of the copper phthalocyanine dye represented by the general formula (1) satisfies the following conditions (1) and (2): (1) the absorption spectrum has peaks in both a wavelength range of 600 nm to 640 nm and a wavelength range of 650 nm to 680 nm, and (2) the ratio between peak values of the absorption spectrum satisfies the following relationship: B/A < 0.75 wherein ‘A’ represents a peak value of the absorption spectrum in the wavelength range of 600 nm to 640 nm, and ‘B’ represents a peak value of the absorption spectrum in the wavelength range of 650 nm to 680 nm.
Claim 3
Dependent Claim
46 words
An ink jet recording ink according to claim 1 , wherein the mass ratio of the content of the compound represented by the general formula (1) to the content of the compound represented by the general formula (2) is 15/1 or more and 50/1 or less.
Claim 4
Dependent Claim
23 words
An ink jet recording ink according to claim 1 , wherein the ink has a pH in a range of 4 to 7.5.
Claim 5
Dependent Claim
55 words
An ink jet recording ink according to claim 1 , further comprising 0.1 mass % to 1.5 mass % of an ethylene oxide adduct of acetylene glycol represented by the following general formula (3) with respect to the total mass of the ink jet recording ink, wherein m and n each independently represent an integer.
Claim 6
Dependent Claim
28 words
An ink jet recording ink according to claim 4 , wherein m and n in the compound represented by the general formula (3) satisfy a relationship of 6<m+n<14.
Claim 7
Dependent Claim
183 words
An ink jet recording ink according to claim 1 , further comprising at least three kinds of solvents including glycerin as a first solvent, a diol represented by the following general formula (4) as a second solvent, and one selected from a urea derivative represented by the following general formula (5), ethylene glycol, and 2-pyrrolidone as a third solvent, wherein the total content of the three kinds of solvents is 18 mass % or more and 27 mass % or less with respect to the total mass of the ink jet recording ink, the total content of the first and second solvents is 12 mass % or more and 20 mass % or less, and the mass ratio of the content of the first solvent to the content of the second solvent is 1.0 or more and 2.0 or less, HO—CH 2 —(CH 2 ) n —CH 2 —OH General Formula (4) wherein n represents an integer of 1 to 6, wherein n represents an integer of 0 to 5, and m and 1 each independently represent an integer of 1 to 6.
Claim 8
Dependent Claim
16 words
An ink jet recording ink according to claim 6 , wherein the second solvent is 1,5-pentanediol.
Claim 9
Dependent Claim
23 words
An ink jet recording ink according to claim 6 , wherein the urea derivative represented by the general formula (5) is ethylene urea.
Claim 10
Dependent Claim
46 words
An ink jet recording ink according to claim 6 , wherein the content of the compound represented by the general formula (2) is 0.2 mass % or more and 3.0 mass % or less with respect to the total mass of the ink jet recording ink.
Claim 11
Dependent Claim
26 words
An ink jet recording ink according to claim 6 , wherein the ink jet recording ink has a pH in a range of 5 to 7.5.
Claim 12
Dependent Claim
31 words
An ink jet recording method comprising applying the ink jet recording ink according to claim 1 to a recording medium by means of an ink jet head to form an image.
Claim 13
Dependent Claim
15 words
An ink cartridge comprising the ink jet recording ink according to claim 1 stored therein.
Claim 14
Dependent Claim
17 words
An ink jet recording apparatus comprising the ink jet recording ink according to claim 1 mounted thereon.
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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) | 2010-07-16 | 2011-01-15 | 2011-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2014-07-16 | 2015-01-15 | 2015-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2018-07-16 | 2019-01-15 | 2019-07-17 | $7700.00 | Window Closed / Lapsed |