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US5855656A
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Ink compositions for thermal ink jet printing
Assignee: Xerox Corp
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Filing: 1997-10-30
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Granted: 1999-01-05
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Expires: 2017-10-30
Abstract
Abstract Disclosed is an ink composition which comprises (a) water, (b) a colorant, and (c) a material of the formula (F 3 C(F 2 C) n CH═CHCH 2 OCH(OH)CH 2 ) 2 NCH 2 COO - ! X + !, wherein X is a cation and n is an integer of from about 3 to about 20. Also disclosed are processes for preparing the ink composition and ink jet printing processes with the ink composition.
Inventors
- 👤 Kurt B. Gundlach
- 👤 Luis A. Sanchez
- 👤 Cheryl A. Hanzlik
- 👤 Kathy-Jo Brodsky
- 👤 Richard L. Colt
- 👤 Aileen M. Montes
- 👤 Rachael L. McGrath
- 👤 Danielle Avolio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:30
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/38
Claims Analysis
Total Claims: 42
Claim 1
Independent Claim
62 words
An ink composition which comprises (a) a colorant, and (b) a liquid vehicle which comprises (i) water, and (ii) a fluorinated material of the formula (F 3 C(F 2 C) n CH═CHCH 2 OCH(OH)CH 2 ) 2 NCH 2 COO - ! X + !, wherein X is a cation and n is an integer of from about 3 to about 20.
Claim 2
Dependent Claim
62 words
An ink composition which comprises (a) a colorant, and (b) a liquid vehicle which comprises (i) water, and (ii) a fluorinated material of the formula (F 3 C(F 2 C) n CH═CHCH 2 OCH(OH)CH 2 ) 2 NCH 2 COO - ! X + !, wherein X is a cation and n is an integer of from about 3 to about 20.
Claim 3
Dependent Claim
51 words
An ink composition according to claim 1 wherein the material of the formula (F 3 C(F 2 C) n CH═CHCH 2 OCH(OH)CH 2 ) 2 NCH 2 COO - ! X + ! is present in an amount of from about 0.1 to about 10 percent by weight of the ink.
Claim 4
Dependent Claim
51 words
An ink composition according to claim 1 further containing a material of the formula (F 2n+1 C n CH 2 S) 2 (CH 3 )C--CH 2 CH 2 COO - ! B + !, wherein n is an integer of from about 8 to about 20 and B is a cation.
Claim 5
Dependent Claim
70 words
An ink composition according to claim 3 wherein the relative ratio by weight of material of the formula (F 2n+1 C n CH 2 S) 2 (CH 3 )C--CH 2 CH 2 COO - ! B + ! to material of the formula (F 3 C(F 2 C) n CH═CHCH 2 OCH(OH)CH 2 ) 2 NCH 2 COO - ! X + ! is from about 75:25 to about 95:5.
Claim 6
Dependent Claim
27 words
An ink composition according to claim 1 further containing a penetrant selected from betaine, cyclohexyl pyrrolidinone, diethylene glycol monobutyl ether, tripropylene glycol monomethyl ether, or mixtures thereof.
Claim 7
Dependent Claim
28 words
An ink composition according to claim 5 wherein the penetrant is present in an amount of from about 0.1 to about 20 percent by weight of the ink.
Claim 8
Dependent Claim
78 words
An ink composition according to claim 1 wherein the colorant is an anionic dye and wherein the ink also contains imidazole, said ink containing water in an amount of from about 68.4 to about 89.1 percent by weight of the ink, imidazole in an amount of from about 10.4 to about 20.7 percent by weight of the ink, and the fluorinated material in an amount of from about 0.31 to about 0.62 percent by weight of the ink.
Claim 9
Dependent Claim
83 words
An ink composition according to claim 1 wherein the colorant is an anionic dye and wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 0.01 to about 65 percent by weight of the liquid vehicle, imidazole in an amount of from about 15 to about 75 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 9 percent by weight of the liquid vehicle.
Claim 10
Dependent Claim
110 words
An ink composition according to claim 1 wherein the colorant is an anionic dye and wherein the ink also contains imidazole and citric acid and has a pH of from about 8.7 to about 8.8, said ink containing water in an amount of from about 62 to about 80 percent by weight of the ink, imidazole in an amount of from about 17 to about 21 percent by weight of the ink, citric acid in an amount of from about 0.8 to about 1.1 percent by weight of the ink, and the fluorinated material in an amount of from about 0.015 to about 0.41 percent by weight of the ink.
Claim 11
Dependent Claim
103 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein the ink has a pH of from about 8.7 to about 8.8, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 0.01 to about 75 percent by weight of the liquid vehicle, imidazole in an amount of from about 25 to about 65 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 6.75 percent by weight of the liquid vehicle, and wherein said ink also contains citric acid.
Claim 12
Dependent Claim
124 words
An ink composition according to claim 1 wherein the colorant is an anionic dye and wherein the ink also contains imidazole, betaine, and citric acid and has a pH of from about 8.7 to about 8.8, said ink containing water in an amount of from about 62 to about 71 percent by weight of the ink, imidazole in an amount of from about 1 to about 4 percent by weight of the ink, betaine in an amount of about 15 percent by weight of the ink, citric acid in an amount of from about 0.06 to about 0.2 percent by weight of the ink, and the fluorinated material in an amount of from about 0.015 to about 0.2 percent by weight of the ink.
Claim 13
Dependent Claim
105 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein the ink has a pH of from about 8.7 to about 8.8, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 0.01 to about 80 percent by weight of the liquid vehicle, imidazole in an amount of from about 0.01 to about 80 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 5.25 percent by weight of the liquid vehicle, and wherein said ink also contains citric acid and betaine.
Claim 14
Dependent Claim
109 words
An ink composition according to claim 1 wherein the colorant is an anionic dye and wherein the ink also contains imidazole, cyclohexylpyrrolidinone, and citric acid, said ink containing water in an amount of from about 60 to about 74 percent by weight of the ink, imidazole in an amount of from about 13 to about 21 percent by weight of the ink, cyclohexylpyrrolidinone in an amount of about 2 percent by weight of the ink, citric acid in an amount of about 1 percent by weight of the ink, and the fluorinated material in an amount of from about 0.15 to about 0.30 percent by weight of the ink.
Claim 15
Dependent Claim
93 words
An ink composition according to claim 1 wherein the colorant is an anionic dye and wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 35 to about 70 percent by weight of the liquid vehicle, imidazole in an amount of from about 20 to about 50 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 4.5 percent by weight of the liquid vehicle, and wherein said ink also contains citric acid and cyclohexylpyrrolidinone.
Claim 16
Dependent Claim
124 words
An ink composition according to claim 1 wherein the colorant is an anionic dye and wherein the ink also contains imidazole, cyclohexylpyrrolidinone, and citric acid and has a pH of from about 8.7 to about 8.8, said ink containing water in an amount of from about 61 to about 68 percent by weight of the ink, imidazole in an amount of from about 17 to about 24 percent by weight of the ink, cyclohexylpyrrolidinone in an amount of about 2 percent by weight of the ink, citric acid in an amount of from about 0.8 to about 1.2 percent by weight of the ink, and the fluorinated material in an amount of from about 0.15 to about 0.39 percent by weight of the ink.
Claim 17
Dependent Claim
105 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein the ink has a pH of from about 8.7 to about 8.8, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 15 to about 20 percent by weight of the liquid vehicle, imidazole in an amount of from about 25 to about 65 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 3 percent by weight of the liquid vehicle, and wherein said ink also contains cyclohexylpyrrolidinone and citric acid.
Claim 18
Dependent Claim
124 words
An ink composition according to claim 1 wherein the colorant is an anionic dye and wherein the ink also contains imidazole, cyclohexylpyrrolidinone, and citric acid and has a pH of from about 8.2 to about 8.3, said ink containing water in an amount of from about 51 to about 55 percent by weight of the ink, imidazole in an amount of from about 1.4 to about 4.8 percent by weight of the ink, cyclohexylpyrrolidinone in an amount of about 2 percent by weight of the ink, citric acid in an amount of from about 0.07 to about 0.24 percent by weight of the ink, and the fluorinated material in an amount of from about 1 to about 2.6 percent by weight of the ink.
Claim 19
Dependent Claim
103 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein has a pH of from about 8.2 to about 8.3, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 65 to about 80 percent by weight of the liquid vehicle, imidazole in an amount of from about 2 to about 25 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 3.8 percent by weight of the liquid vehicle, and wherein said ink also contains cyclohexylpyrrolidinone and citric acid.
Claim 20
Dependent Claim
135 words
An ink composition according to claim 1 wherein the colorant is an anionic dye and wherein the ink also contains imidazole, an ethoxylated 2-naphthol polymer with a molecular weight of about 27,000, and citric acid and has a pH of from about 8.7 to about 8.8, said ink containing water in an amount of from about 79 to about 83 percent by weight of the ink, imidazole in an amount of from about 1.4 to about 4.9 percent by weight of the ink, the polymer in an amount of about 0.1 percent by weight of the ink, citric acid in an amount of from about 0.07 to about 0.25 percent by weight of the ink, and the fluorinated material in an amount of from about 0.015 to about 0.24 percent by weight of the ink.
Claim 21
Dependent Claim
115 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein the ink has a pH of from about 8.7 to about 8.8, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 25 to about 55 percent by weight of the liquid vehicle, imidazole in an amount of from about 25 to about 55 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 2.25 to about 5.25 percent by weight of the liquid vehicle, and wherein said ink also contains an ethoxylated 2-naphthol polymer with a molecular weight of about 27,000 and citric acid.
Claim 22
Dependent Claim
115 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein the ink has a pH of from about 8.7 to about 8.8, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 75 to about 80 percent by weight of the liquid vehicle, imidazole in an amount of from about 2 to about 7 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 2.25 percent by weight of the liquid vehicle, and wherein said ink also contains an ethoxylated 2-naphthol polymer with a molecular weight of about 27,000 and citric acid.
Claim 23
Dependent Claim
138 words
An ink composition according to claim 1 wherein the colorant is an anionic dye and wherein the ink also contains imidazole, betaine, cyclohexylpyrrolidinone, and citric acid and has a pH of from about 8.7 to about 8.8, said ink containing water in an amount of from about 61 to about 69 percent by weight of the ink, imidazole in an amount of from about 1 to about 3.7 percent by weight of the ink, betaine in an amount of about 15 percent by weight of the ink, cyclohexylpyrrolidinone in an amount of about 2 percent by weight of the ink, citric acid in an amount of from about 0.05 to about 0.19 percent by weight of the ink, and the fluorinated material in an amount of from about 0.12 to about 0.56 percent by weight of the ink.
Claim 24
Dependent Claim
106 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein the ink has a pH of from about 8.7 to about 8.8, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 0.01 to about 80 percent by weight of the liquid vehicle, imidazole in an amount of from about 0.01 to about 80 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 3.75 percent by weight of the liquid vehicle, and wherein said ink also contains betaine, cyclohexylpyrrolidinone, and citric acid.
Claim 25
Dependent Claim
149 words
An ink composition according to claim 1 wherein the colorant is an anionic dye and wherein the ink also contains imidazole, betaine, an ethoxylated 2-naphthol polymer with a molecular weight of about 27,000, and citric acid and has a pH of from about 8.7 to about 8.8, said ink containing water in an amount of from about 50 to about 52 percent by weight of the ink, imidazole in an amount of from about 1 to about 8 percent by weight of the ink, betaine in an amount of about 15 percent by weight of the ink, the polymer in an amount of about 0.1 percent by weight of the ink, citric acid in an amount of from about 0.06 to about 0.4 percent by weight of the ink, and the fluorinated material in an amount of from about 0.01 to about 0.32 percent by weight of the ink.
Claim 26
Dependent Claim
116 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein the ink has a pH of from about 8.7 to about 8.8, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 65 to about 80 percent by weight of the liquid vehicle, imidazole in an amount of from about 2 to about 25 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 3.75 percent by weight of the liquid vehicle, and wherein said ink also contains betaine, an ethoxylated 2-naphthol polymer with a molecular weight of about 27,000, and citric acid.
Claim 27
Dependent Claim
116 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein the ink has a pH of from about 8.7 to about 8.8, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 5 to about 55 percent by weight of the liquid vehicle, imidazole in an amount of from about 35 to about 75 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 5.25 percent by weight of the liquid vehicle, and wherein said ink also contains betaine, an ethoxylated 2-naphthol polymer with a molecular weight of about 27,000, and citric acid.
Claim 28
Dependent Claim
149 words
An ink composition according to claim 1 wherein the colorant is an anionic dye and wherein the ink also contains imidazole, cyclohexylpyrrolidinone, an ethoxylated 2-naphthol polymer with a molecular weight of about 27,000, and citric acid and has a pH of from about 8.7 to about 8.8, said ink containing water in an amount of from about 78 to about 81 percent by weight of the ink, imidazole in an amount of from about 0.7 to about 17 percent by weight of the ink, cyclohexylpyrrolidinone in an amount of about 2 percent by weight of the ink, the polymer in an amount of about 0.1 percent by weight of the ink, citric acid in an amount of from about 0.035 to about 0.85 percent by weight of the ink, and the fluorinated material in an amount of from about 0.03 to about 0.11 percent by weight of the ink.
Claim 29
Dependent Claim
116 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein the ink has a pH of from about 8.7 to about 8.8, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 65 to about 80 percent by weight of the liquid vehicle, imidazole in an amount of from about 2 to about 25 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 3.75 percent by weight of the liquid vehicle, and wherein said ink also contains cyclohexylpyrrolidinone, an ethoxylated 2-naphthol polymer with a molecular weight of about 27,000, and citric acid.
Claim 30
Dependent Claim
116 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein the ink has a pH of from about 8.7 to about 8.8, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 5 to about 55 percent by weight of the liquid vehicle, imidazole in an amount of from about 5 to about 65 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 11.25 percent by weight of the liquid vehicle, and wherein said ink also contains cyclohexylpyrrolidinone, an ethoxylated 2-naphthol polymer with a molecular weight of about 27,000, and citric acid.
Claim 31
Dependent Claim
116 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein the ink has a pH of from about 8.7 to about 8.8, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 5 to about 15 percent by weight of the liquid vehicle, imidazole in an amount of from about 2 to about 12 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 11.25 to about 12 percent by weight of the liquid vehicle, and wherein said ink also contains cyclohexylpyrrolidinone, an ethoxylated 2-naphthol polymer with a molecular weight of about 27,000, and citric acid.
Claim 32
Dependent Claim
163 words
An ink composition according to claim 1 wherein the colorant is an anionic dye and wherein the ink also contains imidazole, betaine, cyclohexylpyrrolidinone, an ethoxylated 2-naphthol polymer with a molecular weight of about 27,000, and citric acid and has a pH of from about 8.7 to about 8.8, said ink containing water in an amount of from about 78 to about 81 percent by weight of the ink, imidazole in an amount of from about 0.7 to about 17 percent by weight of the ink, betaine in an amount of about 15 percent by weight of the ink, cyclohexylpyrrolidinone in an amount of about 2 percent by weight of the ink, the polymer in an amount of about 0.1 percent by weight of the ink, citric acid in an amount of from about 0.035 to about 0.85 percent by weight of the ink, and the fluorinated material in an amount of from about 0.21 to about 0.71 percent by weight of the ink.
Claim 33
Dependent Claim
117 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein the ink has a pH of from about 8.7 to about 8.8, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 65 to about 80 percent by weight of the liquid vehicle, imidazole in an amount of from about 2 to about 25 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 3.75 percent by weight of the liquid vehicle, and wherein said ink also contains betaine, cyclohexylpyrrolidinone, an ethoxylated 2-naphthol polymer with a molecular weight of about 27,000, and citric acid.
Claim 34
Dependent Claim
117 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein the ink has a pH of from about 8.7 to about 8.8, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 5 to about 65 percent by weight of the liquid vehicle, imidazole in an amount of from about 25 to about 75 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 8.25 percent by weight of the liquid vehicle, and wherein said ink also contains betaine, cyclohexylpyrrolidinone, an ethoxylated 2-naphthol polymer with a molecular weight of about 27,000, and citric acid.
Claim 35
Dependent Claim
90 words
An ink composition according to claim 1 wherein the colorant is an anionic dye, wherein the liquid vehicle further contains imidazole, said liquid vehicle containing water in an amount of from about 0.01 to about 65 percent by weight of the liquid vehicle, imidazole in an amount of from about 15 to about 75 percent by weight of the liquid vehicle, and the fluorinated material in an amount of from about 0.15 to about 9 percent by weight of the liquid vehicle, and wherein said ink also contains citric acid.
Claim 36
Dependent Claim
75 words
A process for preparing an ink composition which comprises (i) subjecting a composition comprising a material of the formula (F 3 C(F 2 C) n CH═CHCH 2 OCH(OH)CH 2 ) 2 NCH 2 COO - ! X + !, wherein X is a cation and n is an integer of from about 3 to about 20 to ultrasonification; and (ii) admixing colorant with the composition, thereby forming an ink, said ink composition further containing water.
Claim 37
Dependent Claim
75 words
A process for preparing an ink composition which comprises (i) subjecting a composition comprising a material of the formula (F 3 C(F 2 C) n CH═CHCH 2 OCH(OH)CH 2 ) 2 NCH 2 COO - ! X + !, wherein X is a cation and n is an integer of from about 3 to about 20 to ultrasonification; and (ii) admixing colorant with the composition, thereby forming an ink, said ink composition further containing water.
Claim 38
Dependent Claim
39 words
A process according to claim 35 wherein water is admixed with the material of the formula (F 3 C(F 2 C) n CH═CHCH 2 OCH(OH)CH 2 ) 2 NCH 2 COO - ! X + ! in step (i).
Claim 39
Dependent Claim
42 words
A process according to claim 35 wherein water is admixed with the material of the formula (F 3 C(F 2 C) n CH═CHCH 2 OCH(OH)CH 2 ) 2 NCH 2 COO - ! X + ! and the colorant in step (ii).
Claim 40
Dependent Claim
61 words
A process according to claim 35 wherein the composition subjected to ultrasonification in step (i) comprises water in an amount of about 85 percent by weight and the material of the formula (F 3 C(F 2 C) n CH═CHCH 2 OCH(OH)CH 2 ) 2 NCH 2 COO - ! X + ! in an amount of about 15 percent by weight.
Claim 41
Dependent Claim
14 words
An ink composition according to claim 1 wherein the ink composition contains liquid crystals.
Claim 42
Dependent Claim
11 words
An ink composition according to claim 1 wherein n is 5.
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