US4365035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigmented jet printing ink
Assignee: Videojet Technologies Inc
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Filing: 1979-05-18
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Granted: 1982-12-21
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Expires: 1999-05-18
Abstract
Abstract A pigmented ink composition for use in jet printing formulated of an aqueous or water-alcohol solvent system, a highly water dispersible white pigment limited to a particle size of less than 5 microns, a water dispersible resinous binder, a basic compound for maintaining a pH within the range of 7.5 to 9.5, and a plasticizer, and which may include in addition a coalescent agent and organic dye components for imparting color to the pigment.
Inventors
- 👤 Daniel M. Zabiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:19
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/322
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
104 words
A water base jet printing ink composition for printing on black, dark, or highly colored substrates, the essential components of the water based jet printing ink consisting essentially of (1) a highly water dispersible white inorganic pigment having a particle size less than 5 microns, (2) a water dispersible thermoplastic acrylic resin, (3) a solvent selected from the group consisting of low boiling alcohol and water-alcohol mixture, (4) a basic compound dissolved in the solvent for adjustment of the pH to within the range of 7.5-9.5, (5) a plasticizer which imparts water resistance and abrasion resistance to the formed ink image, and (6) water.
Claim 2
Dependent Claim
104 words
A water base jet printing ink composition for printing on black, dark, or highly colored substrates, the essential components of the water based jet printing ink consisting essentially of (1) a highly water dispersible white inorganic pigment having a particle size less than 5 microns, (2) a water dispersible thermoplastic acrylic resin, (3) a solvent selected from the group consisting of low boiling alcohol and water-alcohol mixture, (4) a basic compound dissolved in the solvent for adjustment of the pH to within the range of 7.5-9.5, (5) a plasticizer which imparts water resistance and abrasion resistance to the formed ink image, and (6) water.
Claim 3
Dependent Claim
18 words
A jet printing ink composition as claimed in claim 1, in which the pigment is a metal oxide.
Claim 4
Dependent Claim
17 words
A jet printing ink composition as claimed in claim 1, in which the pigment is titanium dioxide.
Claim 5
Dependent Claim
31 words
A jet printing ink composition as claimed in claim 1, in which the inorganic pigment is present in an amount within the range of 5-15% by weight of the ink composition.
Claim 6
Dependent Claim
16 words
A jet printing ink composition as claimed in claim 1, which includes a soluble organic dye.
Claim 7
Dependent Claim
17 words
A jet printing ink composition as claimed in claim 1, which includes an easily dispersible colored pigment.
Claim 8
Dependent Claim
28 words
A jet printing ink composition as claimed in claim 1, in which the weight ratio of the resin to pigment is within the range of 0.50 to 2.0.
Claim 9
Dependent Claim
25 words
A jet printing ink composition as claimed in claim 1, in which the weight ratio of the resin to pigment is substantially equal to 1.
Claim 10
Dependent Claim
37 words
A jet printing ink composition as claimed in claim 1, having a viscosity within the range of 5-25 centipoises, an electrical resistivity no greater than 2000 ohm-cm, suitable for printing on black, dark or highly colored substrates.
Claim 11
Dependent Claim
22 words
A jet printing ink composition as claimed in claim 1, in which the pH is within the range of 8.0 to 9.5.
Claim 12
Dependent Claim
18 words
A jet printing ink composition as claimed in claim 1, in which the basic compound is ammonium hydroxide.
Claim 13
Dependent Claim
21 words
A jet printing ink composition as claimed in claim 1, in which the viscosity is in the range of 5-25 centipoises.
Claim 14
Dependent Claim
29 words
A jet printing ink composition as claimed in claim 1, in which the solvent is isopropanol present in an amount up to 40% ty weight of the ink composition.
Claim 15
Dependent Claim
31 words
A jet printing ink composition as claimed in claim 1, in which the solvent is isopropanol present in an amount within the range of 15-30% by weight of the ink composition.
Claim 16
Dependent Claim
34 words
A jet printing ink composition as claimed in claim 1, in which the plasticizer is an alkyl or aryl phthalate selected from a group comprising dibutylphthalate, diphenylphthalate, dimethylphthalate, dicyclohexylphthalate, butylphthalyl butyl glycolate and butylbenzylphthalate.
Claim 17
Dependent Claim
30 words
A jet printing ink composition as claimed in claim 1, in which the plasticizer is employed in an amount within the range of 2-10% by weight of the resin content.
Claim 18
Dependent Claim
30 words
A jet printing ink composition as claimed in claim 1, in which the plasticizer is employed in an amount within the range of 4-6% by weight of the resin content.
Claim 19
Dependent Claim
15 words
A jet printing ink composition as claimed in claim 1 which includes a coalescent agent.
Claim 20
Dependent Claim
24 words
A jet printing ink composition as claimed in claim 1, which includes a coalescent agent selected from the group comprising glycol-ethers and their derivatives.
Claim 21
Dependent Claim
29 words
A jet printing ink as claimed in claim 18 in which the glycol-ether is diethylene glycol ethyl ether in an amount up to 10% by weight of the composition.
Claim 22
Dependent Claim
30 words
A jet printing ink as claimed in claim 18, in which the coalescent agent is present in an amount within the range of 1-4% by weight of the ink composition.
Claim 23
Dependent Claim
13 words
A jet printing ink as claimed in claim 1 which includes a defoamer.
Claim 24
Dependent Claim
27 words
A jet printing ink as claimed in claim 22 in which the defoamer is present in an amount up to 1% by weight of the ink composition.
Claim 25
Dependent Claim
31 words
A jet printing ink as claimed in claim 22 in which the defoamer is present in an amount within the range of 0.002 to 0.1% by weight of the ink composition.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-12-20 | 1986-06-21 | 1986-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-12-20 | 1990-06-21 | 1990-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-12-20 | 1994-06-21 | 1994-12-21 | $7700.00 | Window Closed / Lapsed |