EP0379978A2
Expired / Lapsed
EP
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Recording liquid and ink jet recording method employing the same
Assignee: Canon Inc
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Filing: 1990-01-18
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Granted: —
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Expires: 2010-01-18
Abstract
Abstract A recording liquid containing a dye, glycerine, an aliphatic monohydric alcohol and water. The dye is a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas [I] and [II]: [where Q1 is a phenyl group or a naphthyl group which are substituted by a lower alkyl carbonylamino group and a lower alkoxy group or a naphthyl group substituted by a SO₃M group, Q2 is a naphthyl group substituted by a SO₃M group or a phenyl group substituted by a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, or a phenyl group or a naphthyl group which are substituted by a SO₃M group, R₁ and R₂ are each a lower alkyl group, a lower alkoxy group or a lower alkyl carbonylamino group, R₃ is a hydrogen or a phenyl group substituted by a SO₃M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation.
Inventors
- 👤 Osamu Nishiwaki
- 👤 Kazuo Iwata
- 👤 Shinichi Tochihara
- 👤 Hitoshi Sugimoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 22:38
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/328
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
173 words
A recording liquid comprising: a dye, glycerine, an aliphatic monohydric alcohol and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas [I] and [II]: wherein Q1 is a phenyl group substituted with a lower alkylcarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO₃M group, Q2 is a naphthyl group substituted with a SO₃M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO₃M group or a naphthyl group substituted with a SO₃M group, R₁ and R₂ are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R₃ is a hydrogen or a phenyl group substituted with a SO₃M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation.
Claim 2
Dependent Claim
173 words
A recording liquid comprising: a dye, glycerine, an aliphatic monohydric alcohol and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas [I] and [II]: wherein Q1 is a phenyl group substituted with a lower alkylcarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO₃M group, Q2 is a naphthyl group substituted with a SO₃M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO₃M group or a naphthyl group substituted with a SO₃M group, R₁ and R₂ are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R₃ is a hydrogen or a phenyl group substituted with a SO₃M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation.
Claim 3
Dependent Claim
20 words
A recording liquid according to claim 1, wherein said aliphatic monohydric alcohol is ethyl alcohol, isopropyl alcohol or n-butyl alcohol.
Claim 4
Dependent Claim
40 words
A recording liquid according to claim 1, wherein said Food Black 2 and said at least one compound represented by said general formulas [I] and [II] are mixed in a weight ratio from 8 : 2 to 2 : 8.
Claim 5
Dependent Claim
35 words
A recording liquid according to claim 1, wherein said glycerine is contained in said recording liquid in an amount between about 1 wt% to 30 wt% based on the total weight of said recording liquid.
Claim 6
Dependent Claim
36 words
A recording liquid according to claim 1, wherein said aliphatic monohydric alcohol is present in said recording liquid in an amount between 0.1 wt% and 10 wt% based on the total weight of said recording liquids.
Claim 7
Dependent Claim
20 words
A recording liquid according to claim 1, wherein said compound represented by the general formula [I) has the following formula:
Claim 8
Dependent Claim
30 words
A recording liquid according to claim 1, wherein said compound represented by the general formula [II) has the following formula: wherein M is an alkaline metal or an ammonium cation.
Claim 9
Dependent Claim
181 words
A recording liquid comprising a dye, glycerine, a urea compound selected from urea or thiourea, an aliphatic monohydric alcohol and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas [I] and [II]: wherein Q1 is a phenyl group substituted with a lower alkylcarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO₃M group, Q2 is a naphthyl group substituted with a SO₃M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO₃M group or a naphthyl group substituted with a SO₃M group, R₁ and R₂ are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R₃ is a hydrogen or a phenyl group substituted with a SO₃M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation.
Claim 10
Dependent Claim
181 words
A recording liquid comprising a dye, glycerine, a urea compound selected from urea or thiourea, an aliphatic monohydric alcohol and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas [I] and [II]: wherein Q1 is a phenyl group substituted with a lower alkylcarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO₃M group, Q2 is a naphthyl group substituted with a SO₃M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO₃M group or a naphthyl group substituted with a SO₃M group, R₁ and R₂ are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R₃ is a hydrogen or a phenyl group substituted with a SO₃M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation.
Claim 11
Dependent Claim
20 words
A recording liquid according to claim 8, wherein said aliphatic monohydric alcohol is ethyl alcohol, isopropyl alcohol or n-butyl alcohol.
Claim 12
Dependent Claim
40 words
A recording liquid according to claim 8, wherein said Food Black 2 and said at least one compound represented by said general formulas [I] and [II] are mixed in a weight ratio from 8 : 2 to 2 : 8.
Claim 13
Dependent Claim
34 words
A recording liquid according to claim 8, wherein said glycerine is present in said recording liquid in an amount between 1 wt% to 30 wt% based on the total weight of said recording liquid.
Claim 14
Dependent Claim
35 words
A recording liquid according to claim 2, wherein said urea compound is present in said recording liquid in an amount between 0.5 wt% and 20 wt% based on the total weight of said recording liquid.
Claim 15
Dependent Claim
36 words
A recording liquid according to claim 8, wherein said aliphatic monohydric alcohol is present in said recording liquid in an amount between 0.1 wt% and 10 wt% based on the total weight of the recording liquid.
Claim 16
Dependent Claim
30 words
A recording liquid according to claim 8, wherein said compound represented by the general formula [I) has the following formula: wherein M is an alkaline metal or an ammonium cation.
Claim 17
Dependent Claim
30 words
A recording liquid according to claim 8, wherein said compound represented by the general formula [II) has the following formula: wherein M is an alkaline metal or an ammonium cation.
Claim 18
Dependent Claim
175 words
A recording liquid comprising a dye, glycerine, thiodiglycol, urea, isopropyl alcohol, and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas [I] and [II]: wherein Q1 is a phenyl group substituted with a lower alkyl carbonyl group or a lower alkoxy group, a naphthyl group substituted with a lower alkyl carbonyl group and a lower alkoxy group or a naphthyl group substituted with a SO₃M group, Q2 is a naphthyl group substituted with a SO₃M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO₃M group or a naphthyl group substituted with a SO₃M group, R₁ and R₂ are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R₃ is a hydrogen or a phenyl group substituted with a SO₃M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation.
Claim 19
Dependent Claim
175 words
A recording liquid comprising a dye, glycerine, thiodiglycol, urea, isopropyl alcohol, and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas [I] and [II]: wherein Q1 is a phenyl group substituted with a lower alkyl carbonyl group or a lower alkoxy group, a naphthyl group substituted with a lower alkyl carbonyl group and a lower alkoxy group or a naphthyl group substituted with a SO₃M group, Q2 is a naphthyl group substituted with a SO₃M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO₃M group or a naphthyl group substituted with a SO₃M group, R₁ and R₂ are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R₃ is a hydrogen or a phenyl group substituted with a SO₃M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation.
Claim 20
Dependent Claim
40 words
A recording liquid according to claim 16, wherein said Food Black 2 and said at least one compound represented by said general formulas [I] and [II] are mixed in a weight ratio from 8 : 2 to 2 : 8.
Claim 21
Dependent Claim
34 words
A recording liquid according to claim 16, wherein said glycerine is present in said recording liquid in an amount between 1 wt% to 30 wt% based on the total weight of the recording liquid.
Claim 22
Dependent Claim
35 words
A recording liquid according to claim 16, wherein said isopropyl alcohol is present in said recording liquid in an amount between 0.1 wt% and 10 wt% based on the total weight of the recording liquid.
Claim 23
Dependent Claim
34 words
A recording liquid according to claim 16, wherein said urea is present in said recording liquid in an amount between 0.5 wt% and 20 wt% based on the total weight of the recording liquid.
Claim 24
Dependent Claim
34 words
A recording liquid according to Claim 16, wherein said thiodiglycol is present in said recording liquid in an amount between 1 wt% and 30 wt% based on the total weight of the recording liquid.
Claim 25
Dependent Claim
30 words
A recording liquid according to claim 16, wherein said compound represented by the general formula [I] has the following formula: wherein M is an alkaline metal or an ammonium cation.
Claim 26
Dependent Claim
30 words
A recording liquid according to claim 16, wherein said compound represented by the general formula [II} has the following formula: wherein M is an alkaline metal or an ammonium cation.
Claim 27
Dependent Claim
212 words
An ink jet recording method in which a recording ink is ejected for recording from a fine orifice toward a recording material in the form of a droplet utilizing a thermal energy, the improvement comprising employing as the recording ink a composition comprising a dye, glycerine, an aliphatic monohydric alcohol and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas [I] and [II]: wherein Q1 is a phenyl group substituted with a lower alkylcarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO₃M group, Q2 is a naphthyl group substituted with a SO₃M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO₃M group or a naphthyl group substituted with a SO₃M group, R₁ and R₂ are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R₃ is a hydrogen or a phenyl group substituted with a SO₃M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation.
Claim 28
Dependent Claim
212 words
An ink jet recording method in which a recording ink is ejected for recording from a fine orifice toward a recording material in the form of a droplet utilizing a thermal energy, the improvement comprising employing as the recording ink a composition comprising a dye, glycerine, an aliphatic monohydric alcohol and water, said dye being a mixture of C.I. Food Black 2 and at least one compound selected from compounds which are represented by the following general formulas [I] and [II]: wherein Q1 is a phenyl group substituted with a lower alkylcarbonylamino group or a lower alkoxy group, a naphthyl group substituted with a lower alkylcarbonylamino group and a lower alkoxy group or a naphthyl group substituted with a SO₃M group, Q2 is a naphthyl group substituted with a SO₃M group or a phenyl group substituted with a lower alkoxy group, Q3 is a phenyl group, a naphthyl group, a phenyl group substituted with a SO₃M group or a naphthyl group substituted with a SO₃M group, R₁ and R₂ are each a lower alkyl group, a lower alkoxy group or a lower alkylcarbonylamino group, R₃ is a hydrogen or a phenyl group substituted with a SO₃M group, n is 0 or 1, and M is an alkaline metal or an ammonium cation.
Claim 29
Dependent Claim
42 words
An ink jet recording method according to claim 24, wherein said Food Black 2 and said at least one compound represented by said general formulas [I] and [II] are mixed in a weight ratio from 8 : 2 to 2 : 8.2.
Claim 30
Dependent Claim
22 words
An ink jet recording method according to claim 24, wherein said recording liquid includes a urea compound selected from urea or thiourea.
Claim 31
Dependent Claim
15 words
An ink jet recording method according to claim 24, wherein said recording liquid includes thiodiglycol.
Claim 32
Dependent Claim
22 words
An ink jet recording method according to claim 24, wherein said aliphatic monohydric alcohol is ethyl alcohol, isopropyl alcohol or n-butyl alcohol.
Claim 33
Dependent Claim
36 words
An ink jet recording method according to claim 24, wherein said glycerine is present in said recording liquid in an amount between 1 wt% to 30 wt% based on the total weight of the recording liquid.
Claim 34
Dependent Claim
38 words
An ink jet recording method according to claim 24, wherein said aliphatic monohydric alcohol is present in said recording liquid in an amount between 0.1 wt% and 10 wt% based on the total weight of the recording liquid.
Claim 35
Dependent Claim
32 words
An ink jet recording method according to claim 24, wherein said compound represented by the general formula [I] has the following formula: wherein M is an alkaline metal or an ammonium cation.
Claim 36
Dependent Claim
30 words
A recording liquid according to claim 24, wherein said compound represented by the general formula [II] has the following formula: wherein M is an alkaline metal or an ammonium cation.
References Cited (Backward Citations)
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