US6059868A
Expired / Lapsed
US
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Ink-jet inks with improved performance
Assignee: HP Inc
•
Filing: 1998-10-29
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Granted: 2000-05-09
•
Expires: 2018-10-29
Abstract
Abstract Ink-jet liquids, and ink-jet liquid sets, and the method for using the same, are provided wherein the one of the liquids comprises an aqueous vehicle; and a decel-alleviating component, wherein the decel-alleviating component is a liquid-soluble compound having a cationic component and an anionic component, the decel-alleviating component being capable of undergoing rapid thermal decomposition upon heating. The present formulations are used to formulate ink-jet liquids, and more particularly, to provide enhanced drop ejection performance, such as decel alleviation, when the liquid contains a precipitating agent, such as, a multi-valent metal compound such as a metal salt or metal coordination compound, and more particularly, when the liquid contains both a multi-valent metal salt and a colorant.
Inventors
- 👤 Vladek Kasperchik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:25
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/328; C09D11/40
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
47 words
An ink-jet liquid comprising: an aqueous vehicle; a precipitating agent which comprises Mg +2 cation; and a decel-alleviating component, wherein the decel-alleviating component is a liquid-soluble compound having a cationic component and an anionic component, the decel-alleviating component being capable of undergoing rapid thermal decomposition upon heating.
Claim 2
Dependent Claim
47 words
An ink-jet liquid comprising: an aqueous vehicle; a precipitating agent which comprises Mg +2 cation; and a decel-alleviating component, wherein the decel-alleviating component is a liquid-soluble compound having a cationic component and an anionic component, the decel-alleviating component being capable of undergoing rapid thermal decomposition upon heating.
Claim 3
Dependent Claim
11 words
The liquid of claim 1 wherein the thermal decomposition is exothermic.
Claim 4
Dependent Claim
25 words
The liquid of claim 1 wherein the decel-alleviating component is a salt having a cationic component and an anionic component having reducing or oxidizing capabilities.
Claim 5
Dependent Claim
19 words
The liquid of claim 1 wherein the decomposition product of the decel-alleviating component is a gas or a liquid.
Claim 6
Dependent Claim
58 words
The liquid of claim 1 wherein the decel-alleviating component comprises a compound selected from the group consisting of NH 4 NO 3 , NH 4 NO 2 , NH 4 N 3 , N 2 H 5 NO 3 , N 2 H 6 (NO 3 ) 2 , (NH 4 ) 2 S 2 O 8 .
Claim 7
Dependent Claim
15 words
The liquid of claim 1 wherein the decel-alleviating component is NH 4 NO 3 .
Claim 8
Dependent Claim
36 words
The liquid of claim 1, 5, or 6 wherein the total concentration of the cation that is the same as that associated with the decel-alleviating component is in a range from about 0.01 to about 10%.
Claim 9
Dependent Claim
34 words
The liquid of claim 7 wherein the the total concentration of the cation that is the same as that associated with the decel-alleviating component is in a range from about 0.02 to about 3%.
Claim 10
Dependent Claim
34 words
The liquid of claim 7 wherein the the total concentration of the cation that is the same as that associated with the decel-alleviating component is in a range from about 0.1 to about 1%.
Claim 11
Dependent Claim
36 words
The liquid of claim 1, 5, or 6 wherein the total concentration of the anion that is the same as that associated with the decel-alleviating component is in a range from about 0.03 to about 20%.
Claim 12
Dependent Claim
33 words
The liquid of claim 10 wherein the total concentration of the anion that is the same as that associated with the decel-alleviating component is in a range from about 0.06 to about 10%.
Claim 13
Dependent Claim
33 words
The liquid of claim 10 wherein the total concentration of the anion that is the same as that associated with the decel-alleviating component is in a range from about 0.2 to about 6%.
Claim 14
Dependent Claim
48 words
The liquid of claim 1, 5, or 6 wherein the ratio of the total cations which are the same as the cationic component of the decel-alleviating component to the total anions which are same as the anionic component of the decel-alleviating component is about 1 to about 4.
Claim 15
Dependent Claim
26 words
The liquid of claim 1 wherein the precipitating agent is a multi-valent metal compound, the metal compound being a metal salt or a metallic coordination compound.
Claim 16
Dependent Claim
17 words
The liquid of claim 14 wherein the metallic coordination compound comprises a metal ion and a ligand.
Claim 17
Dependent Claim
16 words
The liquid of claim 15 wherein the ligand has a coordination number of at least two.
Claim 18
Dependent Claim
37 words
The liquid of claim 16 wherein the ligand is selected from the group consisting of glycine, ethylenediamine, propylenediamine, lactic acid, iminodiacetic acid, diethylenetriamine, dihydroxyethylglycine, hydroxyethyliminodiacetic acid, nitrilotriacetic acid, ethylenediaminetetraacetic acid, hydroxyethylethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, and triethylenetetraminehexaacetic acid.
Claim 19
Dependent Claim
11 words
The liquid of claim 1 or 6 further comprising a colorant.
Claim 20
Dependent Claim
99 words
An ink-jet printing liquid set, the set comprising: a first aqueous liquid a decel-alleviating component and a precipitating agent which comprises Mg +2 cations, wherein the decel-alleviating component is a liquid-soluble compound having a cationic component and an anionic component, the decel-alleviating component being capable of undergoing rapid thermal decomposition upon heating; and a second aqueous ink, the second ink comprising at least one second colorant having a functional group that upon contact with the precipitating agent in the first liquid can associate to form an insoluble salt, complex, or compound, thereby immobilizing the second colorant in the second.
Claim 21
Dependent Claim
99 words
An ink-jet printing liquid set, the set comprising: a first aqueous liquid a decel-alleviating component and a precipitating agent which comprises Mg +2 cations, wherein the decel-alleviating component is a liquid-soluble compound having a cationic component and an anionic component, the decel-alleviating component being capable of undergoing rapid thermal decomposition upon heating; and a second aqueous ink, the second ink comprising at least one second colorant having a functional group that upon contact with the precipitating agent in the first liquid can associate to form an insoluble salt, complex, or compound, thereby immobilizing the second colorant in the second.
Claim 22
Dependent Claim
17 words
The set of claim 19 wherein the wherein the thermal decomposition of the first liquid is exothermic.
Claim 23
Dependent Claim
25 words
The set of claim 19 herein the decel-alleviating component is a salt having a cationic component and an anionic component having oxidizing or reducing capabilities.
Claim 24
Dependent Claim
58 words
The set of claim 19 wherein the decel-alleviating component comprises a compound selected from the group consisting of NH 4 NO 3 , NH 4 NO 2 , NH 4 N 3 , N 2 H 5 NO 3 , N 2 H 6 (NO 3 ) 2 , (NH 4 ) 2 S 2 O 8 .
Claim 25
Dependent Claim
15 words
The set of claim 19 wherein the decel-alleviating component is NH 4 NO 3 .
Claim 26
Dependent Claim
35 words
The set of claim 19, 22, or 23 wherein the decel-alleviating component is present in the liquid in an effective concentration from about 0.05 to about 0.1 wt. % based on the total ink weight.
Claim 27
Dependent Claim
36 words
The set of claim 19, 22, or 23 wherein the total concentration of the cation that is the same as that associated with the decel-alleviating component is in a range from about 0.01 to about 10%.
Claim 28
Dependent Claim
36 words
The set of claim 19, 22, or 23 wherein the total concentration of the anion that is the same as that associated with the decel-alleviating component is in a range from about 0.03 to about 20%.
Claim 29
Dependent Claim
48 words
The set of claim 19, 22, or 23 wherein the ratio of the total cations which are the same as the cationic component of the decel-alleviating component to the total anions which are same as the anionic component of the decel-alleviating component is about 1 to about 4.
Claim 30
Independent Claim
61 words
A method for alleviating decel in an ink-jet printing, the method comprising the steps of: providing a first aqueous liquid comprising a decel-alleviating component and a precipitating agent which comprises Mg +2 cations, wherein the decel-alleviating component is a liquid-soluble compound having a cationic component and an anionic component, the decel-alleviating component being capable of undergoing rapid thermal decomposition upon heating.
Claim 31
Independent Claim
61 words
A method for alleviating decel in an ink-jet printing, the method comprising the steps of: providing a first aqueous liquid comprising a decel-alleviating component and a precipitating agent which comprises Mg +2 cations, wherein the decel-alleviating component is a liquid-soluble compound having a cationic component and an anionic component, the decel-alleviating component being capable of undergoing rapid thermal decomposition upon heating.
Claim 32
Dependent Claim
58 words
The method of claim 28 wherein the decel-alleviating component comprises a compound selected from the group consisting of NH 4 NO 3 , NH 4 NO 2 , NH 4 N 3 , N 2 H 5 NO 3 , N 2 H 6 (NO 3 ) 2 , (NH 4 ) 2 S 2 O 8 .
Claim 33
Dependent Claim
15 words
The method of claim 29 wherein the decel-alleviating component is NH 4 NO 3 .
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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) | 2003-05-09 | 2003-11-08 | 2004-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-05-09 | 2007-11-08 | 2008-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-05-09 | 2011-11-08 | 2012-05-09 | $7700.00 | Window Closed / Lapsed |