US5290348A
Expired / Lapsed
US
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Non aqueous fluorescent dispersion ink with improved shelf life, tack and flow
Assignee: Pitney Bowes Inc
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Filing: 1992-10-05
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Granted: 1994-03-01
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Expires: 2012-10-05
Abstract
Abstract Fluorescent Ink formulations have been conceived that result in inks having improved tack and flow properties so that problems relating to ink plugging with contemporary ink pads are reduced. Another advantage to the inks is that they have improved paper dust resistance, shelf life and flow properties. These inks are made of a coloring material having an organic non fluorescent pigment dispersed in a rosin ester and a solid solution of a fluorescent dye in triazine paraformaldehyde aryl sulfonamide resin dispersed in an alkyd resin. The solvent system is preferably composed of non drying solvents such as emollients and higher molecular weight glycols.
Inventors
- 👤 Judith D. Auslander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:49
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/50
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
84 words
A non aqueous fluorescent dispersion ink composition, comprising: a) 40 to 90% by weight of an non aqueous continuous phase of emollient solvent, b) 1-10% by weight non fluorescent organic pigment having a size of 0.1 to 0.5 microns dispersed in rosin ester, and c) 5-30% by weight organic fluorescent pigment having an average particle size of 0.1 to 0.5 microns made of solid solution of fluorescent dye in triazine toluene sulfonamide/formaldehyde resin dispersed in an alkyd resin varnish of linseed oil alkyd resin.
Claim 2
Dependent Claim
84 words
A non aqueous fluorescent dispersion ink composition, comprising: a) 40 to 90% by weight of an non aqueous continuous phase of emollient solvent, b) 1-10% by weight non fluorescent organic pigment having a size of 0.1 to 0.5 microns dispersed in rosin ester, and c) 5-30% by weight organic fluorescent pigment having an average particle size of 0.1 to 0.5 microns made of solid solution of fluorescent dye in triazine toluene sulfonamide/formaldehyde resin dispersed in an alkyd resin varnish of linseed oil alkyd resin.
Claim 3
Dependent Claim
26 words
The non aqueous, fluorescent dispersion ink composition of claim 1 wherein said non aqueous continuous phase further includes 0.1 to 4% of a surface tension modifier.
Claim 4
Dependent Claim
27 words
The non aqueous fluorescent dispersion ink composition of claim 1 wherein said non aqueous continuous phase further includes 0.1 to 4.0% fumed silica with grafted polysiloxane groups.
Claim 5
Dependent Claim
27 words
The non aqueous, fluorescent ink composition of claim 1 wherein said organic non fluorescent pigment is flushed in non-ionic surfactants having an HLB of 4 to 13.
Claim 6
Dependent Claim
24 words
The non aqueous, fluorescent ink composition of claim 1 wherein said non aqueous phase includes 1 to 5% by weight nonyl phenoxy polyoxyethylene ethanol.
Claim 7
Dependent Claim
24 words
The non aqueous, fluorescent dispersion ink composition of claim 5 wherein said non aqueous phase further includes 5 to 30% by weight polypropylene glycol.
Claim 8
Dependent Claim
70 words
The non aqueous, fluorescent dispersion ink of claim 1 wherein said non aqueous phase is selected from the group consisting of polyoxypropylene stearyl ether, polyoxypropylene (10) cetyl ether, oleic acid, castor oil, soy bean oil, a mixture of 10 to 30% by weight polypropylene glycol and 70 to 90% by weight stearyl polyoxypropylene ether, and 10 to 30% polypropylene glycol and 70 to 90% by weight polyoxypropylene (10) cetyl ether.
Claim 9
Dependent Claim
27 words
The non aqueous, fluorescent dispersion ink composition of claim 1 wherein said non aqueous continuous phase further includes trace to 10% by weight linseed oil alkyd resin.
Claim 10
Dependent Claim
19 words
The non aqueous, fluorescent dispersion ink composition of claim 7 wherein said polyoxypropylene stearyl ether is an emollient solvent.
Claim 11
Dependent Claim
19 words
The non aqueous, fluorescent dispersion ink composition of claim 1 further including 0.2 to 1% by weight coupling agent.
Claim 12
Dependent Claim
56 words
A non aqueous, fluorescent dispersion ink composition comprising: a) 40 to 90% by weight non aqueous solvent containing 95 to 99% by weight emollient, 1 to 5% nonyl phenoxy polyoxyethylene ethanol, b) 1 to 10% by weight non fluorescent organic pigment flushed in a non ionic surfactant and, c) 5.0 to 30% by weight fluorescent pigment.
Claim 13
Dependent Claim
56 words
A non aqueous, fluorescent dispersion ink composition comprising: a) 40 to 90% by weight non aqueous solvent containing 95 to 99% by weight emollient, 1 to 5% nonyl phenoxy polyoxyethylene ethanol, b) 1 to 10% by weight non fluorescent organic pigment flushed in a non ionic surfactant and, c) 5.0 to 30% by weight fluorescent pigment.
Claim 14
Dependent Claim
41 words
The non aqueous, fluorescent ink composition of claim 11 further including trace to 5% by weight of a first emulsifier having a hydrophilic lipophilic balance value of 2 to 4.9 and a second emulsifier having a hydrophilic lipophilic balance of 11-16.
Claim 15
Dependent Claim
46 words
The non aqueous, fluorescent dispersion ink composition of claim 11 wherein at least 98% of said non fluorescent pigment has a particle size of 0.1 to 0.5 μ and the average particle size for at least 98% of said fluorescent pigment is 0.1 to 0.5 μ.
Claim 16
Dependent Claim
33 words
The non aqueous, fluorescent dispersion ink composition of claim 11 wherein said non-fluorescent pigment is selected from the group consisting of dispersed pigment in rosin ester, and pigment flushed in oleylpolyoxy ethylene ether.
Claim 17
Dependent Claim
53 words
A non aqueous, continuous fluorescent dispersion ink composition comprising: a) 40-90% by weight a non aqueous phase, and b) 10-30% by weight a coloring material including an organic non fluorescent pigment predispersed in a rosin ester and a solid solution of a fluorescent dye in amino formaldehyde resin dispersed in an alkyd resin.
Claim 18
Dependent Claim
53 words
A non aqueous, continuous fluorescent dispersion ink composition comprising: a) 40-90% by weight a non aqueous phase, and b) 10-30% by weight a coloring material including an organic non fluorescent pigment predispersed in a rosin ester and a solid solution of a fluorescent dye in amino formaldehyde resin dispersed in an alkyd resin.
Claim 19
Dependent Claim
28 words
The non aqueous, fluorescent dispersion ink of claim 15 wherein at least 98% of said organic non fluorescence pigment has a particle size of 0.1 to 0.5 microns.
Claim 20
Dependent Claim
27 words
The non aqueous, fluorescent dispersion ink of claim 15 wherein at least 98% of said of fluorescent dye has a particle size of 0.1 to 0.5 microns.
Claim 21
Dependent Claim
137 words
A non aqueous, fluorescent dispersion ink composition comprising: a) 40 to 90% by weight of a non aqueous continuous phase selected from the group consisting of castor oil, oleic acid, and soy bean oil, polyoxypropylene stearyl ether, polyoxypropylene (10) cetyl ether, a mixture of 10 to 30% by weight polypropylene glycol and 70 to 90% by weight polyoxypropylene stearyl ether, and 10 to 30% by weight polypropylene glycol and 70 to 90% by weight polyoxypropylene (10) cetyl ether b) 5-30% by weight non fluorescent organic pigment having an average particle size of 0.1 to 0.5 microns dispersed in rosin ester, and c) 1-10% by weight organic fluorescent pigment having an average particle size of 0.1 to 0.5 microns made of solid solution of fluorescent dye in triazene toluene sulfanomide/formaldehyde resin dispersed in a linseed oil alkyd resin.
Claim 22
Dependent Claim
137 words
A non aqueous, fluorescent dispersion ink composition comprising: a) 40 to 90% by weight of a non aqueous continuous phase selected from the group consisting of castor oil, oleic acid, and soy bean oil, polyoxypropylene stearyl ether, polyoxypropylene (10) cetyl ether, a mixture of 10 to 30% by weight polypropylene glycol and 70 to 90% by weight polyoxypropylene stearyl ether, and 10 to 30% by weight polypropylene glycol and 70 to 90% by weight polyoxypropylene (10) cetyl ether b) 5-30% by weight non fluorescent organic pigment having an average particle size of 0.1 to 0.5 microns dispersed in rosin ester, and c) 1-10% by weight organic fluorescent pigment having an average particle size of 0.1 to 0.5 microns made of solid solution of fluorescent dye in triazene toluene sulfanomide/formaldehyde resin dispersed in a linseed oil alkyd resin.
Claim 23
Dependent Claim
28 words
The non aqueous, fluorescent dispersion ink composition of claim 18 wherein said non aqueous continuous phase further includes 0.1 to 4% by weight of a surface tension modifier.
Claim 24
Dependent Claim
29 words
The non aqueous, fluorescent dispersion ink composition of claim 18 wherein said non aqueous continuous phase further includes 0.1 to 4.0% by wight fumed silica with grafted polysiloxane groups.
Claim 25
Dependent Claim
27 words
The non aqueous, fluorescent dispersion ink composition of claim 18 wherein said organic fluorescent pigment is flushed in non-ionic surfactants having an HLB of 4 to 13.
Claim 26
Dependent Claim
26 words
The non aqueous, fluorescent dispersion ink composition of claim 18 wherein said non aqueous continuous phase includes 1 to 5% by weight nonyl phenoxy polyoxyethylene ethanol.
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| 3.5 Years (Year 4) | 1997-02-28 | 1997-08-30 | 1998-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-02-28 | 2001-08-30 | 2002-03-01 | $3760.00 | Window Closed / Lapsed |
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