Patent US5755860A successfully refreshed from Google Patents.
US5755860A
Expired / Lapsed
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Invisible fluorescent jet ink
Assignee: Videojet Technologies Inc
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Filing: 1996-12-19
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Granted: 1998-05-26
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Expires: 2016-12-19
Abstract
Abstract Disclosed is a jet ink composition suitable for printing marks on metal, glass, plastics, rubber, or paper comprising an ink carrier, a fluorescent colorant, a cellulosic binder resin, and a tetraalkyl ammonium or phosphonium salt. The jet printed marks do not blush, bleed, or fade, as a result of exposure to steam, or hot and cold water. Also disclosed is an improved process of jet printing on substrates comprising printing with the disclosed jet ink composition.
Inventors
- 👤 Linfang Zhu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:38
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/50; C09D11/30; C09D11/36
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
43 words
A jet ink composition suitable for printing marks on metal, glass, plastics, rubber, or paper comprising an ink carrier, a fluorescent colorant, a cellulosic binder resin, and a tetraalkyl ammonium or phosphonium salt, said marks having blush resistance, bleed resistance, or fade resistance.
Claim 2
Dependent Claim
43 words
A jet ink composition suitable for printing marks on metal, glass, plastics, rubber, or paper comprising an ink carrier, a fluorescent colorant, a cellulosic binder resin, and a tetraalkyl ammonium or phosphonium salt, said marks having blush resistance, bleed resistance, or fade resistance.
Claim 3
Dependent Claim
50 words
The jet ink composition of claim 1, wherein said composition has (1) a viscosity of from about 1.6 to about 7.0 centipoises at 250° C.; (2) an electrical resistivity of from about 50 to about 2000 ohm-cm; or (3) a sonic velocity of from about 1100 to about 1700 meters/second.
Claim 4
Dependent Claim
14 words
The jet ink composition of claim 2, wherein said fluorescent colorant comprises 2,2'-(2,5-thiophenedyl) -bis(5-tert-butylbenzoxazole).
Claim 5
Dependent Claim
14 words
The jet ink composition of claim 3, wherein said cellulosic binder resin is nitrocellulose.
Claim 6
Dependent Claim
20 words
The jet ink composition of claim 4, wherein said nitrocellulose ha s a nitrogen content of about 12% by weight.
Claim 7
Dependent Claim
15 words
The jet ink composition of claim 4, wherein said ink carrier comprises an organic solvent.
Claim 8
Dependent Claim
16 words
The jet ink composition of claim 6, wherein said organic solvent comprises a ketone or alcohol.
Claim 9
Dependent Claim
16 words
The jet ink composition of claim 7, wherein said ketone is acetone or methyl ethyl ketone.
Claim 10
Dependent Claim
14 words
The jet ink composition of claim 7, wherein said alcohol is methanol or ethanol.
Claim 11
Dependent Claim
21 words
The jet ink composition of claim 7, wherein said tetraalkyl ammonium or phoshonium salt is a tetrabutyl ammonium or phosphonium salt.
Claim 12
Dependent Claim
16 words
The jet ink composition of claim 10, wherein said tetrabutyl phosphonium salt is tetrabutyl phosphonium bromide.
Claim 13
Dependent Claim
13 words
The jet ink composition of claim 11, which further comprises a silicone resin.
Claim 14
Dependent Claim
12 words
The jet ink composition of claim 12, which further comprises a plasticizer.
Claim 15
Dependent Claim
13 words
The jet ink composition of claim 13, wherein said plasticizer is tributyl phosphate.
Claim 16
Dependent Claim
12 words
The jet ink composition of claim 14, which further comprises a surfactant.
Claim 17
Dependent Claim
15 words
The jet ink composition of claim 15, wherein said surfactant is a fluoroaliphatic polymeric ester.
Claim 18
Dependent Claim
14 words
The jet ink composition of claim 15, which further comprises a high boiling solvent.
Claim 19
Dependent Claim
15 words
The jet ink composition of claim 17, wherein said high boiling solvent is N-methyl pyrrolidone.
Claim 20
Dependent Claim
89 words
In an improved process of jet printing on metal, glass, plastic, rubber, or paper substrates, the improvement comprising projecting a stream of ink droplets of a jet ink composition to the surface of said substrates and controlling the direction of the stream electronically so that the droplets are caused to form the desired printed mark on the surface, said marks having blush resistance, bleed resistance, or fade resistance, said jet ink comprising an ink carrier, a fluorescent colorant, a cellulosic binder resin, and a tetraalkyl ammonium or phosphonium salt.
Claim 21
Dependent Claim
89 words
In an improved process of jet printing on metal, glass, plastic, rubber, or paper substrates, the improvement comprising projecting a stream of ink droplets of a jet ink composition to the surface of said substrates and controlling the direction of the stream electronically so that the droplets are caused to form the desired printed mark on the surface, said marks having blush resistance, bleed resistance, or fade resistance, said jet ink comprising an ink carrier, a fluorescent colorant, a cellulosic binder resin, and a tetraalkyl ammonium or phosphonium salt.
Claim 22
Dependent Claim
12 words
The improved process of claim 19, wherein said fluorescent colorant comprises 2,2'-(2,5-thiophenediyl)-bis(5-tert-butylbenzoxazole).
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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) | 2001-05-25 | 2001-11-24 | 2002-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-05-25 | 2005-11-24 | 2006-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-05-25 | 2009-11-24 | 2010-05-26 | $7700.00 | Window Closed / Lapsed |