US6843839B2
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Ink, recording method, recording unit, ink cartridge, ink set, and recording apparatus
Assignee: Canon Inc
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Filing: 2001-06-04
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Granted: 2005-01-18
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Expires: 2021-06-04
Abstract
Abstract Magenta ink exhibiting excellent coloration on various recording materials is provided according to the present invention. The magenta ink can realize high image densities and can produce images having superior light resistance. The magenta ink contains first and second coloring materials represented by the following general formulae 1 and 2, respectively, and a water-based medium
Inventors
- 👤 Tsuyoshi Kanke
- 👤 Takao Yamamoto
- 👤 Kumiko Mafune
- 👤 Hisashi Teraoka
- 👤 Yuko Yakushigawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:20
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/322; C09D11/40
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
202 words
An ink comprising: a first coloring material represented by the following general formula 1; a second coloring material represented by the following general formula 2; and an aqueous medium, wherein R 1 represents a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryl group, R 2 and R 4 represent, independently, a hydrogen atom, or a substituted or unsubstituted alkyl group, R 3 represents a substituent selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, and a halogen atom, X 1 represents a carboxyl group or a salt thereof, or a sulfonic acid group or a salt thereof, and n represents 1 or 2; wherein Ar 1 represents a substituted or unsubstituted phenyl group, or a substituted or unsubstituted naphthyl group, Ar 2 represents an acetyl group, a benzoyl group, a 1,3,5-triazinyl group, a SO 2 —C 6 H 5 group, or a SO 2 —C 6 H 4 —CH 3 group, M represents a counter ion to a sulfonic acid group that is selected from the group consisting of a hydrogen atom, an alkali metal, an ammonium, and an organic ammonium.
Claim 2
Dependent Claim
202 words
An ink comprising: a first coloring material represented by the following general formula 1; a second coloring material represented by the following general formula 2; and an aqueous medium, wherein R 1 represents a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryl group, R 2 and R 4 represent, independently, a hydrogen atom, or a substituted or unsubstituted alkyl group, R 3 represents a substituent selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, and a halogen atom, X 1 represents a carboxyl group or a salt thereof, or a sulfonic acid group or a salt thereof, and n represents 1 or 2; wherein Ar 1 represents a substituted or unsubstituted phenyl group, or a substituted or unsubstituted naphthyl group, Ar 2 represents an acetyl group, a benzoyl group, a 1,3,5-triazinyl group, a SO 2 —C 6 H 5 group, or a SO 2 —C 6 H 4 —CH 3 group, M represents a counter ion to a sulfonic acid group that is selected from the group consisting of a hydrogen atom, an alkali metal, an ammonium, and an organic ammonium.
Claim 3
Dependent Claim
27 words
The ink according to claim 1 , further comprising at least one of C.I. Acid Red 52 and C.I. Acid Red 289 as a third coloring material.
Claim 4
Dependent Claim
17 words
The ink according to claim 2 , wherein said third coloring material is C.I. Acid Red 289.
Claim 5
Dependent Claim
125 words
An ink comprising: at least one of C.I. Acid Red 52 and C.I. Acid Red 289; a coloring material represented by the following general formula 1; and an aqueous medium, wherein R 1 represents a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryl group, R 2 and R 4 represent, independently, a hydrogen atom or a substituted or unsubstituted alkyl group, R 3 represents a substituent selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, and a halogen atom, X 1 represents a carboxyl group or a salt thereof, or a sulfonic acid group or a salt thereof, and n represents 1 or 2.
Claim 6
Dependent Claim
125 words
An ink comprising: at least one of C.I. Acid Red 52 and C.I. Acid Red 289; a coloring material represented by the following general formula 1; and an aqueous medium, wherein R 1 represents a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryl group, R 2 and R 4 represent, independently, a hydrogen atom or a substituted or unsubstituted alkyl group, R 3 represents a substituent selected from the group consisting of a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, and a halogen atom, X 1 represents a carboxyl group or a salt thereof, or a sulfonic acid group or a salt thereof, and n represents 1 or 2.
Claim 7
Dependent Claim
41 words
The ink according to any one of claims 1 to 4 , wherein one of said coloring materials has at least one carboxyl group or a salt thereof, and said ink has a pH within a range of 7.0 to 11.0.
Claim 8
Dependent Claim
39 words
The ink according to any one of claims 1 to 4 , wherein none of said coloring materials have a carboxyl group or a salt thereof, and said ink has a pH within a range of 4.0 to 11.0.
Claim 9
Dependent Claim
37 words
The ink according to any one of claims 1 to 4 , wherein the total content of said coloring materials is within a range of 0.1% to 15.0% by weight of the total weight of the ink.
Claim 10
Dependent Claim
34 words
The ink according to any one of claims 1 to 4 , wherein the ink contains water at an amount within a range of 30% to 95% of the total weight of the ink.
Claim 11
Dependent Claim
20 words
The ink according to any one of claims 1 to 4 , wherein said ink is used for ink-jet recording.
Claim 12
Dependent Claim
35 words
An ink set comprising: at least one ink selected from the group consisting of yellow ink, cyan ink, and black ink; and the magenta ink according to any one of claims 1 to 4 .
Claim 13
Dependent Claim
17 words
The ink set according to claim 10 , wherein said ink set is used for ink-jet recording.
Claim 14
Dependent Claim
20 words
An ink set comprising: cyan ink, and the magenta ink according to any one of claims 1 to 4 .
Claim 15
Dependent Claim
21 words
The ink set according to claim 12 , wherein said cyan ink comprises a coloring material having a copper phthalocyanine structure.
Claim 16
Dependent Claim
17 words
The ink set according to claim 12 , wherein said ink set is used for ink-jet recording.
Claim 17
Dependent Claim
24 words
An ink-jet recording method, comprising a step of ejecting said ink according to claim 9 from an orifice in response to a recording signal.
Claim 18
Dependent Claim
30 words
An ink-jet recording method according to claim 15 , wherein said method further comprises a sub-step of ejecting said ink from said orifice by applying thermal energy to said ink.
Claim 19
Dependent Claim
48 words
An ink-jet recording method, comprising the steps of: (i) ejecting said magenta ink according to claim 9 from an orifice in response to a recording signal; and (ii) ejecting cyan ink comprising a dye having a copper phthalocyanine structure from an orifice in response to a recording signal.
Claim 20
Dependent Claim
37 words
The ink-jet recording method according to claim 17 , wherein at least one of the step (i) and step (ii) comprises a sub-step of ejecting said ink from said orifice by applying thermal energy to said ink.
Claim 21
Dependent Claim
33 words
The ink-jet recording method according to claim 17 , wherein step (i) and step (ii) are conducted so that the magenta ink and the cyan ink overlap each other on a recording material.
Claim 22
Dependent Claim
36 words
The ink-jet recording method according to claim 19 , wherein at least one of step (i) and step (ii) comprises a sub-step of ejecting said ink from said orifice by applying thermal energy to said ink.
Claim 23
Dependent Claim
24 words
A recording unit comprising: an ink storage portion storing said ink according to claim 9 , and a head portion for ejecting said ink.
Claim 24
Dependent Claim
50 words
A recording unit, comprising: an ink storage portion storing each of at least one ink selected from the group consisting of yellow ink, cyan ink, and black ink, and magenta ink according to any one of claims 1 to 4 , and a head portion for ejecting said respective inks.
Claim 25
Dependent Claim
26 words
The recording unit according to claim 22 , wherein said head portion comprises a head that ejects said ink by applying thermal energy to said ink.
Claim 26
Dependent Claim
34 words
A recording unit comprising: an ink storage portion storing cyan ink, and magenta ink according to any one of claims 1 to 4 , respectively, and a head portion for ejecting said respective inks.
Claim 27
Dependent Claim
17 words
The recording unit according to claim 24 , wherein said cyan ink comprises a copper phthalocyanine structure.
Claim 28
Dependent Claim
26 words
The recording unit according to claim 24 , wherein said head portion comprises a head that ejects said ink by applying thermal energy to said ink.
Claim 29
Dependent Claim
21 words
An ink cartridge comprising an ink storage portion storing said ink according to any one of claims 1 to 4 .
Claim 30
Dependent Claim
40 words
An ink cartridge, comprising an ink storage portion storing at least one ink selected from the group consisting of yellow ink, cyan ink, and black ink, and said magenta ink according to any one of claims 1 to 4 .
Claim 31
Dependent Claim
24 words
An ink cartridge comprising an ink storage portion storing cyan ink, and magenta ink according to any one of claims 1 to 4 .
Claim 32
Dependent Claim
21 words
The ink cartridge according to claim 29 , wherein said cyan ink comprises a coloring material having a copper phthalocyanine structure.
Claim 33
Dependent Claim
29 words
An ink-jet recording apparatus comprising a recording unit comprising: an ink storage portion storing said ink according to claim 9 , and a head portion for ejecting said ink.
Claim 34
Dependent Claim
23 words
An ink-jet recording apparatus according to claim 31 , wherein said head portion ejects said ink by applying thermal energy to said ink.
Claim 35
Dependent Claim
45 words
An ink-jet recording apparatus comprising: a recording head for ejecting said ink according to claim 9 ; an ink cartridge comprising an ink storage portion storing said ink; and an ink supply portion for supplying said ink from said ink cartridge to said recording head.
Claim 36
Dependent Claim
23 words
An ink-jet recording apparatus according to claim 33 , wherein said recording head ejects said ink by applying thermal energy to said ink.
Claim 37
Dependent Claim
43 words
An ink-jet recording apparatus comprising: at least one ink for ink-jet recording, selected from the group consisting of yellow ink, cyan ink, and black ink, a magenta ink according to claim 9 , and a recording head for ejecting each of said inks.
Claim 38
Dependent Claim
23 words
An ink-jet recording apparatus according to claim 35 , wherein said recording head ejects said inks by applying thermal energy to said inks.
Claim 39
Dependent Claim
20 words
An ink-jet recording apparatus according to claim 35 , wherein said cyan ink comprises a dye having a phthalocyanine structure.
Claim 40
Dependent Claim
23 words
An ink-jet recording apparatus according to claim 37 , wherein said recording head ejects said inks by applying thermal energy to said inks.
Claim 41
Dependent Claim
28 words
An ink-jet recording apparatus comprising: cyan ink, an ink having a magenta color according to claim 9 , and a recording head for ejecting each of said inks.
Claim 42
Dependent Claim
23 words
An ink-jet recording apparatus according to claim 39 , wherein said recording head ejects said inks by applying thermal energy to said inks.
Claim 43
Dependent Claim
20 words
An ink-jet recording apparatus according to claim 39 , wherein said cyan ink comprises a dye having a phthalocyanine structure.
Claim 44
Dependent Claim
23 words
An ink-jet recording apparatus according to claim 41 , wherein said recording head ejects said inks by applying thermal energy to said inks.
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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) | 2008-01-18 | 2008-07-19 | 2009-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-01-18 | 2012-07-19 | 2013-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-01-18 | 2016-07-19 | 2017-01-18 | $7700.00 | Window Closed / Lapsed |