US6284027B1
Expired / Lapsed
US
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Machine readable water based red fluorescent ink compositions
Assignee: Pitney Bowes Inc
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Filing: 2000-04-03
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Granted: 2001-09-04
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Expires: 2020-04-03
Abstract
Abstract An ink composition suitable for printing machine readable indicia on a substrate with an ink jet printing device is disclosed. The disclosed ink composition comprises water, a water soluble resin, a red fluorescent colorant material mixture comprising C.I. Basic yellow 40 dye, C.I. Basic Red 1 dye, and C.I. Basic Violet 11:1 dye, and a blue colorant material comprising C.I. Acid Blue 9. In the preferred embodiments of the ink composition, the dyes in the red fluorescent colorant material mixture are present in a weight ratio of approximately 1.12 to 1.36 to 1, respectively, and the weight ratio of the red fluorescent colorant material mixture to the blue colorant material is in the range of about 3.8 to 1 to about 46 to 1.
Inventors
- 👤 Judith A. Auslander
- 👤 Richard A. Bernard
- 👤 Claude Zeller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:40
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/50; C09D11/30; C09D11/32; C09D11/328
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
61 words
A water based ink composition for use in an ink jet printer for printing machine readable indicia on a substrate, the composition comprising: water; a water soluble resin; a red fluorescent colorant material mixture comprising C.I. Basic Red 1 dye, C.I. Basic Yellow 40 dye, and C.I. Basic Violet 11:1 dye; and a blue colorant material comprising Acid Blue 9 dye.
Claim 2
Dependent Claim
61 words
A water based ink composition for use in an ink jet printer for printing machine readable indicia on a substrate, the composition comprising: water; a water soluble resin; a red fluorescent colorant material mixture comprising C.I. Basic Red 1 dye, C.I. Basic Yellow 40 dye, and C.I. Basic Violet 11:1 dye; and a blue colorant material comprising Acid Blue 9 dye.
Claim 3
Dependent Claim
31 words
The ink composition of claim 1 , wherein the dyes in the red fluorescent colorant material mixture are present in a weight ratio of approximately 1.12 to 1.36 to 1, respectively.
Claim 4
Dependent Claim
36 words
The ink composition of claim 2 , wherein the weight ratio of the red fluorescent colorant mixture to the blue colorant material is in the range of about 3.8 to 1 to about 46 to 1.
Claim 5
Dependent Claim
25 words
The ink composition of claim 3 , wherein the red fluorescent colorant material mixture comprises approximately 0.81 to 1.12 weight percent of the ink composition.
Claim 6
Dependent Claim
23 words
The ink composition of claim 1 , wherein the water soluble resin is selected from the group consisting of polyvinylpyrrolidone and 5,5-dimethylhydantoin polymer.
Claim 7
Dependent Claim
26 words
The ink composition of claim 1 , wherein the water soluble resin comprises polyvinylpyrrolidone having a molecular weight in the range of about 3,500 to 10,000.
Claim 8
Dependent Claim
66 words
An ink composition for use in an ink jet printer for printing machine readable indicia on a substrate, the composition comprising: water; 2-pyrrolidone; polyethylene glycol; triethylene glycol mono-n-butyl ether; a water soluble resin; a red fluorescent colorant material mixture comprising C.I. Basic yellow 40 dye, C.I. Basic Red 1 dye, and C.I. Basic Violet 11:1 dye; and a blue colorant material comprising C.I. Acid Blue 9.
Claim 9
Dependent Claim
66 words
An ink composition for use in an ink jet printer for printing machine readable indicia on a substrate, the composition comprising: water; 2-pyrrolidone; polyethylene glycol; triethylene glycol mono-n-butyl ether; a water soluble resin; a red fluorescent colorant material mixture comprising C.I. Basic yellow 40 dye, C.I. Basic Red 1 dye, and C.I. Basic Violet 11:1 dye; and a blue colorant material comprising C.I. Acid Blue 9.
Claim 10
Dependent Claim
30 words
The composition of claim 1 , wherein the dyes in the red fluorescent colorant material mixture are present in a weight ratio of approximately 1.12 to 1.36 to 1, respectively.
Claim 11
Dependent Claim
37 words
The ink composition of claim 1 , wherein the weight ratio of the red fluorescent colorant material mixture to the blue colorant material is in the range of about 3.8 to 1 to about 46 to 1.
Claim 12
Dependent Claim
20 words
The ink composition of claim 1 , wherein the water soluble resin is selected from the group consisting of polyvinylpyrrolidone.
References Cited (Backward Citations)
US5486550A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-09-03 | 2005-03-05 | 2005-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-09-03 | 2009-03-05 | 2009-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-09-03 | 2013-03-05 | 2013-09-04 | $7700.00 | Window Closed / Lapsed |