US5637140A
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Water-based ink composition and ink-jet recording process
Assignee: Brother Industries Ltd
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Filing: 1996-06-14
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Granted: 1997-06-10
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Expires: 2016-06-14
Abstract
Abstract A water-based ink composition comprising a dye or pigment, dissolved or dispersed in an aqueous medium, and having at least one of fatty acids in a total content not more than 0.3% by weight and fatty acid esters in a total content not more than 0.6% by weight.
Inventors
- 👤 Masaya Fujioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:11
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
61 words
A water-based ink composition comprising a dye or a pigment, dissolved or dispersed in an aqueous medium, wherein said water-based ink composition has at least one of i) fatty acids in a total content not more than 0.3% by weight and ii) fatty acid esters comprising methyl palmitate and methyl stearate in a total content not more than 0.6% by weight.
Claim 2
Dependent Claim
61 words
A water-based ink composition comprising a dye or a pigment, dissolved or dispersed in an aqueous medium, wherein said water-based ink composition has at least one of i) fatty acids in a total content not more than 0.3% by weight and ii) fatty acid esters comprising methyl palmitate and methyl stearate in a total content not more than 0.6% by weight.
Claim 3
Dependent Claim
40 words
The water-based ink composition according to claim 1, wherein said water-based ink composition has fatty acids in a total content not more than 0.3% by weight and fatty acid esters in a total content not more than 0.6% by weight.
Claim 4
Dependent Claim
39 words
The water-based ink composition according to claim 2, wherein said fatty acids are in a total content not more than 0.09% by weight and said fatty acid esters are in a total content not more than 0.3% by weight.
Claim 5
Dependent Claim
18 words
The water-based ink composition according to claim 1, wherein said fatty acids comprise palmitic acid and stearic acid.
Claim 6
Dependent Claim
36 words
The water-based ink composition according to claim 4, wherein said palmitic acid is in a content not more than 0.1% by weight and said stearic acid is in a content not more than 0.2% by weight.
Claim 7
Dependent Claim
36 words
The water-based ink composition according to claim 4, wherein said palmitic acid is in a content not more than 0.03% by weight and said stearic acid is in a content not more than 0.06% by weight.
Claim 8
Dependent Claim
36 words
The water-based ink composition according to claim 1, wherein said methyl palmitate is in a content not more than 0.2% by weight and said methyl stearate is in a content not more than 0.4% by weight.
Claim 9
Dependent Claim
36 words
The water-based ink composition according to claim 1, wherein said methyl palmitate is in a content not more than 0.1% by weight and said methyl stearate is in a content not more than 0.2% by weight.
Claim 10
Dependent Claim
37 words
The water-based ink composition according to claim 1, wherein said dye or pigment is contained in an amount of from 0.1% by weight to 20% by weight based on the total weight of the water-based ink composition.
Claim 11
Dependent Claim
23 words
The water-based ink composition according to claim 1, wherein said aqueous medium is a mixed solvent of water and a water-soluble organic solvent.
Claim 12
Dependent Claim
14 words
The water-based ink composition according to claim 11, wherein said water is deionized water.
Claim 13
Dependent Claim
81 words
An ink-jet recording processing comprising jetting a water-based ink composition to a recording medium in the form of droplets to make a record, wherein said water-based ink composition comprises a dye or a pigment, dissolved or dispersed in an aqueous medium, and has at least one of i) fatty acids in a total content not more than 0.3% by weight and ii) fatty acid esters comprising methyl palmirate and methyl stearate in a total content not more than 0.6 by weight.
Claim 14
Dependent Claim
81 words
An ink-jet recording processing comprising jetting a water-based ink composition to a recording medium in the form of droplets to make a record, wherein said water-based ink composition comprises a dye or a pigment, dissolved or dispersed in an aqueous medium, and has at least one of i) fatty acids in a total content not more than 0.3% by weight and ii) fatty acid esters comprising methyl palmirate and methyl stearate in a total content not more than 0.6 by weight.
Claim 15
Dependent Claim
40 words
The ink-jet recording process according to claim 12 wherein said water-based ink composition has fatty acids in a total content not more than 0.3% by weight and fatty acid esters in a total content not more than 0.6% by weight.
Claim 16
Dependent Claim
39 words
The ink-jet recording process according to claim 13, wherein said fatty acids are in a total content not more than 0.09% by weight and said fatty acid esters are in a total content not more than 0.3% by weight.
Claim 17
Dependent Claim
18 words
The ink-jet recording process according to claim 12, wherein said fatty acids comprise palmitic acid and stearic acid.
Claim 18
Dependent Claim
36 words
The ink-jet recording process according to claim 15, wherein said palmitic acid is in a content not more than 0.1% by weight and said stearic acid is in a content not more than 0.2% by weight.
Claim 19
Dependent Claim
36 words
The ink-jet recording process according to claim 15, wherein said palmitic acid is in a content not more than 0.03% by weight and said stearic acid is in a content not more than 0.06% by weight.
Claim 20
Dependent Claim
36 words
The ink-jet recording process according to claim 12, wherein said methyl palmitate is in a content not more than 0.2% by weight and said methyl stearate is in a content not more than 0.4% by weight.
Claim 21
Dependent Claim
36 words
The ink-jet recording process according to claim 12, wherein said methyl palmitate is in a content not more than 0.1% by weight and said methyl stearate is in a content not more than 0.2% by weight.
Claim 22
Dependent Claim
37 words
The ink-jet recording process according to claim 12, wherein said dye or pigment is contained in an amount of from 0.1% by weight to 20% by weight based on the total weight of the water-based ink composition.
Claim 23
Dependent Claim
23 words
The ink-jet recording process according to claim 12, wherein said aqueous medium is a mixed solvent of water and a water-soluble organic solvent.
Claim 24
Dependent Claim
14 words
The ink-jet recording process according to claim 21, wherein said water is deionized water.
Claim 25
Dependent Claim
28 words
The ink-jet recording process according to claim 12, wherein said water-based ink composition is jetted in the form of droplets by utilizing the vibration of a piezoelectric device.
Claim 26
Dependent Claim
26 words
The ink-jet recording process according to claim 12, wherein said water-based ink composition is jetted in the form of droplets by the action of heat energy.
Claim 27
Dependent Claim
43 words
The water-based ink composition according to claim 1, wherein the fatty acids are present in a total content of not more than 0.09% by weight or the fatty acid esters are present in a total content of not more than 0.3% by weight.
Claim 28
Dependent Claim
36 words
A water-based ink composition comprising a dye or a pigment, dissolved or dispersed in an aqueous medium, wherein said water-based ink composition has fatty acids in a total content of not more than 0.3% by weight.
Claim 29
Dependent Claim
36 words
A water-based ink composition comprising a dye or a pigment, dissolved or dispersed in an aqueous medium, wherein said water-based ink composition has fatty acids in a total content of not more than 0.3% by weight.
Claim 30
Dependent Claim
25 words
The water-based ink composition according to claim 26, wherein the fatty acids are present in a total content of not more than 0.09% by weight.
Claim 31
Dependent Claim
18 words
The water-based ink composition according to claim 26, wherein the fatty acids comprise palmitic acid and stearic acid.
Claim 32
Dependent Claim
40 words
The water-based ink composition according to claim 28, wherein the palmitic acid is present in a content of not more than 0.1% by weight and the stearic acid is present in an amount of not more than 0.2% by weight.
Claim 33
Dependent Claim
39 words
The water-based ink composition according to claim 28, wherein the palmitic acid is present in an amount of not more than 0.03% by weight and the stearic acid is present in an amount of not more 0.06% by weight.
Claim 34
Dependent Claim
42 words
An ink-jet recording process according to claim 12, wherein the fatty acids are present in a total content of not more than 0.09% by weight or the fatty acid esters are present in a total content of not more 0.3% by weight.
References Cited (Backward Citations)
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