US4176361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ink composition for ink jet printing
Assignee: Konica Minolta Inc
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Filing: 1976-05-12
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Granted: 1979-11-27
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Expires: 1996-05-12
Abstract
Abstract Disclosed is an aqueous ink composition useful for ink jet printing, which comprises 2-12 wt % of a water soluble dye, 35-80 wt % of a polyhydric alcohol having 2-6 carbon atoms.
Inventors
- 👤 Hiroh Kawada
- 👤 Kiyoshi Goto
- 👤 Yoshio Kurita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:55
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
89 words
In an ink jet printing method, the improvement comprising using, as the printing ink, an ink composition consisting essentially of a water soluble dye in an amount of 2-12 weight %, and a mixed solvent consisting of water and 40-80% by weight of said composition of a polyhydric alcohol selected from the group consisting of ethylene glycol, propylene glycol, trimethylene glycol, glycerine, 1,3-butanediol, 2,3-butanediol, 1,4-butanediol, diethylene glycol, 1,5-pentanediol, hexylene glycol, triethylene glycol, dipropylene glycol and 1,2,6-hexanetriol, said composition having a viscosity of 4 to 20 centipoises at 25° C.
Claim 2
Dependent Claim
89 words
In an ink jet printing method, the improvement comprising using, as the printing ink, an ink composition consisting essentially of a water soluble dye in an amount of 2-12 weight %, and a mixed solvent consisting of water and 40-80% by weight of said composition of a polyhydric alcohol selected from the group consisting of ethylene glycol, propylene glycol, trimethylene glycol, glycerine, 1,3-butanediol, 2,3-butanediol, 1,4-butanediol, diethylene glycol, 1,5-pentanediol, hexylene glycol, triethylene glycol, dipropylene glycol and 1,2,6-hexanetriol, said composition having a viscosity of 4 to 20 centipoises at 25° C.
Claim 3
Dependent Claim
22 words
In the ink jet printing method of claim 1, wherein the ink composition further consists of 0.01-1 wt % of an antiseptic.
Claim 4
Dependent Claim
16 words
The ink jet printing method of claim 2, wherein the antiseptic in the composition is dioxine.
Claim 5
Dependent Claim
23 words
The ink jet printing method of claim 2, wherein the composition further consists of 0.05-1 wt % of a non-ionic surface active agent.
References Cited (Backward Citations)
US3519443A
Cited
US3705045A
Cited
US3705043A
Cited
US3846141A
Cited
US3779780A
Cited
JPS47251U
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-26 | 1983-05-28 | 1983-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-26 | 1987-05-28 | 1987-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-26 | 1991-05-28 | 1991-11-27 | $7700.00 | Window Closed / Lapsed |