Patent US5851273A successfully refreshed from Google Patents.
US5851273A
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Dye set for improved ink-jet print quality
Assignee: Hewlett Packard Development Co LP
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Filing: 1997-07-02
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Granted: 1998-12-22
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Expires: 2017-07-02
Abstract
Abstract In accordance with the invention a set of dyes suitable for use in ink-jet inks and method for formulating the same are provided. A specific dye set for formulating the yellow, cyan, magenta, and optionally black inks is disclosed, comprising Direct Yellow 132, Direct Blue 199, Magenta 377, and optionally Pacified Reactive Black 31 dyes, respectively. This dye set provides ink-jet prints able to match printed color standards such as specification for web offset publications (SWOP) and Euroweb, with excellent lightfade and pen reliability performance.
Inventors
- 👤 Peter C. Morris
- 👤 David H. Donovan
- 👤 Gregg A. Lane
- 👤 Larrie A. Deardurff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:06
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/40; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; C09D11/32; C09D11/328
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
28 words
An ink set for ink-jet printing, comprising: a yellow ink comprising Direct Yellow 132; a magenta ink comprising Magenta 377; and a cyan ink comprising Direct Blue 199.
Claim 2
Dependent Claim
28 words
An ink set for ink-jet printing, comprising: a yellow ink comprising Direct Yellow 132; a magenta ink comprising Magenta 377; and a cyan ink comprising Direct Blue 199.
Claim 3
Dependent Claim
27 words
The set of ink-jet inks of claim 1 wherein each of said yellow, cyan, and magenta inks comprises from about 0.1 to about 5 wt % dye.
Claim 4
Dependent Claim
27 words
The set of ink-jet inks of claim 1 wherein each of said yellow, cyan, and magenta inks comprises from about 2.5 to about 3.5 wt % dye.
Claim 5
Dependent Claim
27 words
The set of ink-jet inks of claim 1 wherein each of said yellow, cyan, and magenta inks comprises from about 2.5 to about 3 wt % dye.
Claim 6
Dependent Claim
54 words
The ink set of claim 1 wherein each of said yellow, cyan, and magenta inks further comprises: about 5 to about 20 wt % of at least one organic solvent; 0 to about 1.5 wt % of at least one component independently selected from the group consisting of surfactants, buffers, biocides, and metal chelators.
Claim 7
Dependent Claim
29 words
The ink set of claim 5 wherein: the organic solvent is selected from the group consisting of nitrogen-containing heterocyclic ketones, diols, glycols, thioglycols, thiodiglycols, glycol ethers, and mixtures thereof.
Claim 8
Dependent Claim
33 words
The ink set of claim 6 wherein the organic solvent comprises: 1,2-diol of from 5 to 7 carbon atoms; and optionally from about 0.1 to about 2 wt % dipropylene glycol monobutyl ether.
Claim 9
Dependent Claim
11 words
The ink set of claim 1 further comprising a black ink.
Claim 10
Dependent Claim
31 words
The ink set of claim 8 wherein the black ink comprises a dye selected from the group consisting of Reactive Black 31 dye, Direct Black 168, and Pacified Reactive Black 31.
Claim 11
Dependent Claim
15 words
The ink set of claim 9 wherein the black dye is Pacified Reactive Black 31.
Claim 12
Dependent Claim
22 words
The ink set of claim 9 wherein the concentration of said black dye is from about 1 to about 10 wt %.
Claim 13
Dependent Claim
21 words
The ink set of claim 9 wherein the concentration of said dye is from about 2 to about 7 wt %.
Claim 14
Dependent Claim
21 words
The ink set of claim 9 wherein the concentration of said dye is from about 3 to about 5 wt %.
Claim 15
Independent Claim
43 words
A method for ink-jet printing, comprising: providing a yellow ink comprising Direct Yellow 132; providing a magenta ink comprising Magenta 377; providing a cyan ink comprising Direct Blue 199; and printing said inks on a printing medium by means of an ink-jet pen.
Claim 16
Independent Claim
43 words
A method for ink-jet printing, comprising: providing a yellow ink comprising Direct Yellow 132; providing a magenta ink comprising Magenta 377; providing a cyan ink comprising Direct Blue 199; and printing said inks on a printing medium by means of an ink-jet pen.
Claim 17
Dependent Claim
24 words
The method of claim 14 wherein each of said yellow, cyan, and magenta inks comprises from about 0.1 to about 5 wt % dye.
Claim 18
Dependent Claim
24 words
The method of claim 14 wherein each of said yellow, cyan, and magenta inks comprises from about 2.5 to about 3.5 wt % dye.
Claim 19
Dependent Claim
24 words
The method of claim 14 wherein each of said yellow, cyan, and magenta inks comprises from about 2.5 to about 3 wt % dye.
Claim 20
Dependent Claim
53 words
The method of claim 14 wherein each of said yellow, cyan, and magenta inks further comprises: about 5 to about 20 wt % of at least one organic solvent; 0 to about 1.5 wt % of at least one component independently selected from the group consisting of surfactants, buffers, biocides, and metal chelators.
Claim 21
Dependent Claim
28 words
The method of claim 18 wherein: the organic solvent is selected from the group consisting of nitrogen-containing heterocyclic ketones, diols, glycols, thioglycols, thiodiglycols, glycol ethers, and mixtures thereof.
Claim 22
Dependent Claim
32 words
The method of claim 19 wherein the organic solvent comprises: 1,2-diol of from 5 to 7 carbon atoms; and optionally from about 0.1 to about 2 wt % dipropylene glycol monobutyl ether.
Claim 23
Dependent Claim
11 words
The method of claim 14 further comprising providing a black ink.
Claim 24
Dependent Claim
30 words
The method of claim 21 wherein the black ink comprising a dye selected from the group consisting of Reactive Black 31 dye, Direct Black 168, and Pacified Reactive Black 31.
Claim 25
Dependent Claim
14 words
The method of claim 22 wherein the black dye is Pacified Reactive Black 31.
Claim 26
Dependent Claim
20 words
The method of claim 22 wherein the concentration of said dye is from about 1 to about 10 wt %.
Claim 27
Dependent Claim
19 words
The method of claim 22 wherein the concentration of said dye is from about 2to about 7 wt %.
Claim 28
Dependent Claim
20 words
The method of claim 22 wherein the concentration of said dye is from about 3 to about 5 wt %.
Claim 29
Dependent Claim
34 words
The method of claim 14 further comprising a black ink wherein the black ink is formed on the printing medium by the addition of the yellow ink, the cyan ink, and the magenta ink.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2001-12-21 | 2002-06-22 | 2002-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-12-21 | 2006-06-22 | 2006-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-12-21 | 2010-06-22 | 2010-12-22 | $7700.00 | Window Closed / Lapsed |