US5032424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for printing on corrugated paper board
Assignee: MEC PROCESS COATING Corp A CORP OF NY
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Filing: 1990-02-08
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Granted: 1991-07-16
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Expires: 2010-02-08
Abstract
Abstract A process for printing the flat top lines of a corrugated paper board in a single pass by a sheet of the board through a top printing rotary letter press printing press and then through a varnishing equipment while the ink is still wet. The sheet having the wet ink and varnish coatings is dried under an infrared heater while forcibly holding it flat against warping.
Inventors
- 👤 Lloyd P. Carlson
- 👤 Lawrence Ernst
- 👤 Louis Mazzaferro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:02
CPC Classifications
B; B41; B41M; B41M7/00; B41M7/02; B41M1/00; B41M1/26; B41M1/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
192 words
A process for printing on corrugated paper board, the board comprising flat paper liners adhesively fixed to the crests of a corrugated paper medium, the process comprising positioning a sheet of the board horizontally continuously throughout the process, passing the sheet through a top printing rotary letter press printing press applying a hydrophobic or oil based printing ink to the sheet's top liner at a film ink thickness of from 1.5 pounds to 2.25 pounds per thousand square feet of the printed area with a printing pressure below that crushing the sheet and forming wet printing ink impressions on the top liner, passing the sheet with the ink impressions still wet through a varnishing equipment applying a hydrophilic or water based varnish covering the wet ink impressions at a film thickness of from 1.5 to 2.25 pounds per thousand square feet of coated area and forming a wet varnish coating on the top liner, and passing the sheet with the ink and the varnish coating still wet under an infrared heater radiating heat uniformly to the varnish coating while forcibly holding the sheet flat against warping, and drying or setting the varnish.
Claim 2
Dependent Claim
192 words
A process for printing on corrugated paper board, the board comprising flat paper liners adhesively fixed to the crests of a corrugated paper medium, the process comprising positioning a sheet of the board horizontally continuously throughout the process, passing the sheet through a top printing rotary letter press printing press applying a hydrophobic or oil based printing ink to the sheet's top liner at a film ink thickness of from 1.5 pounds to 2.25 pounds per thousand square feet of the printed area with a printing pressure below that crushing the sheet and forming wet printing ink impressions on the top liner, passing the sheet with the ink impressions still wet through a varnishing equipment applying a hydrophilic or water based varnish covering the wet ink impressions at a film thickness of from 1.5 to 2.25 pounds per thousand square feet of coated area and forming a wet varnish coating on the top liner, and passing the sheet with the ink and the varnish coating still wet under an infrared heater radiating heat uniformly to the varnish coating while forcibly holding the sheet flat against warping, and drying or setting the varnish.
References Cited (Backward Citations)
US4170681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-15 | 1995-01-14 | 1995-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-15 | 1999-01-14 | 1999-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-15 | 2003-01-14 | 2003-07-16 | $7700.00 | Window Closed / Lapsed |