US4729918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of using powders to cure solvent free inks
Assignee: Shamrock Chemicals Corp
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Filing: 1986-10-06
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Granted: 1988-03-08
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Expires: 2006-10-06
Abstract
Abstract An improved process for curing solvent free inks using resin powder makes use of a caulstock laminate which is applied against a printed surface bearing ink and resin powder. The printed material and the caulstock are heated, pressed together and then cooled.
Inventors
- 👤 William B. Neuberg
- 👤 John J. Aclin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:41
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/40; B05D1/42; B41; B41F; B41F23/00; B41F23/04; B41F23/08; B41M; B41M7/00; B41M7/02; B05D2252/00; B05D2252/02; B05D2401/00; B05D2401/30; B05D2401/32; B05D3/00; B05D3/02; B05D3/0254; B05D3/12; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901; Y10T428/24934
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
82 words
A half-tone printed surface cured according to a process for curing solvent free ink, wherein resin powder is applied to a printed surface on a web and cured, the inmprovement wherein a caulstock laminate having a release agent is applied to said powdered, printed surface of said web, wherein said web and said caulstock are heated, wherein said web and said caulstock are pressed together, wherein said web and said caulstock are cooled, and wherein said caulstock is peeled from said web.
Claim 2
Dependent Claim
82 words
A half-tone printed surface cured according to a process for curing solvent free ink, wherein resin powder is applied to a printed surface on a web and cured, the inmprovement wherein a caulstock laminate having a release agent is applied to said powdered, printed surface of said web, wherein said web and said caulstock are heated, wherein said web and said caulstock are pressed together, wherein said web and said caulstock are cooled, and wherein said caulstock is peeled from said web.
Claim 3
Dependent Claim
29 words
A half-tone printed surface cured according to claim 1 wherein said heating step is carried out by passing said web and said caulstock over at least one heated roller.
Claim 4
Dependent Claim
32 words
A half-tone printed surface cured according to claim 1 wherein said step of pressing said web and said caulstock together comprises pressing said web and said caulstock between a pair of rollers.
Claim 5
Dependent Claim
18 words
A half-tone printed surface cured according to claim 1 wherein said release agent is a silicone release agent.
Claim 6
Dependent Claim
27 words
A half-tone printed surface cured according to claim 1 wherein said web has two powdered, printed surfaces, and wherein caulstock laminates are applied to both said surfaces.
Claim 7
Dependent Claim
95 words
A half-tone printed surface cured according to a process for curing solvent free inks, wherein resin powder is applied to a printed surface on a web and cured, the improvement wherein a caulstock laminate having a release aent is applied to said powdered, printed surface of said web, wherein said web and said caulstock are passed over a first heated roller and pressed between said first roller and a second roller, wherein said web and said caulstock are passed over at least a third cooled roller, and wherein said caulstock is peeled from said web.
Claim 8
Dependent Claim
95 words
A half-tone printed surface cured according to a process for curing solvent free inks, wherein resin powder is applied to a printed surface on a web and cured, the improvement wherein a caulstock laminate having a release aent is applied to said powdered, printed surface of said web, wherein said web and said caulstock are passed over a first heated roller and pressed between said first roller and a second roller, wherein said web and said caulstock are passed over at least a third cooled roller, and wherein said caulstock is peeled from said web.
Claim 9
Dependent Claim
42 words
A half-tone printed surface cured according to claim 6 wherein said step of applying a caulstock laminate comprises applying a caulstock laminate having an aluminum foil surface having a silicone release agent with said aluminum foil surface against said powdered, printed surface.
Claim 10
Dependent Claim
41 words
A half-tone printed surface cured according to claim 6 wherein said step of applying a caulstock laminate comprises applying a caulstock laminate having a thermoset resin surface having a silicone release agent with said resin surface against said powdered printed surface.
Claim 11
Dependent Claim
43 words
A half-tone printed surface cured according to claim 6 wherein said step of pressing said web and said caulstock between said first roller and a second roller comprises passing said web and said caulstock between said first roller and a secnd heater roller.
Claim 12
Dependent Claim
30 words
A half-tone printed surface cured according to claim 6 including the further steps of passing said web and said caulstock over a fourth cooled roller prior to peeling said caulstock.
Claim 13
Dependent Claim
26 words
A half-tone printed surface cured according to claim 6 including the further step of returning said peeled caulstock laminate to be re-applied to said web surface.
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) | 1991-03-08 | 1991-09-07 | 1992-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-08 | 1995-09-07 | 1996-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-08 | 1999-09-07 | 2000-03-08 | $7700.00 | Window Closed / Lapsed |