US3995083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical discharge recording medium, particularly aluminized paper for recording, and method
Assignee: Robert Bosch GmbH
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Filing: 1974-08-23
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Granted: 1976-11-30
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Expires: 1994-08-23
Abstract
Abstract A paper carrier substrate, has a contrasting layer applied thereto which thereafter is aluminized; in accordance with the invention, this contrasting layer is ordinary printing ink, which has a somewhat rough surface, permitting excellent adhesion of the metallized layer. In places where no ink is applied, the metallized layer will corrode off, thus leaving non-metallized markings. The ink is preferably applied by gravure or intaglio printing on the substrate, at a speed of between 5 to 9 m/sec., the printing roller being free from etchings where markings are to appear.
Inventors
- 👤 Rolf Reichle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:08
CPC Classifications
G; G06; G06K; G06K1/00; G06K1/12; G06K1/128; B; B41; B41M; B41M5/00; B41M5/24; B41M5/245; G06K19/00; G06K19/02; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24893; Y10T428/24901
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
84 words
Metallized recording paper consisting essentially of a paper substrate, (10), a contrasting intermediate layer (11) of intaglio or gravure printing ink on said paper substrate (10); and a metallized coating (12), vapor-deposited on the contrasting intermediate intaglio or printing ink layer (11) and adapted to be burned off under the action of an electrical discharge, wherein said intaglio or gravure printing ink of said ink layer (11) contains sufficient filler to provide a uniformly rough surface at the side facing the metallized coating (12).
Claim 2
Dependent Claim
84 words
Metallized recording paper consisting essentially of a paper substrate, (10), a contrasting intermediate layer (11) of intaglio or gravure printing ink on said paper substrate (10); and a metallized coating (12), vapor-deposited on the contrasting intermediate intaglio or printing ink layer (11) and adapted to be burned off under the action of an electrical discharge, wherein said intaglio or gravure printing ink of said ink layer (11) contains sufficient filler to provide a uniformly rough surface at the side facing the metallized coating (12).
Claim 3
Dependent Claim
21 words
Recording paper according to claim 1, wherein the ratio of filler material to ink is about 55% to 80%, by weight.
Claim 4
Dependent Claim
33 words
Recording paper according to claim 1, wherein the contrasting intermediate intaglio, or gravure printing ink layer (11) is applied on the paper substrate with discontinuities (13) to form markings on the paper substrate.
Claim 5
Dependent Claim
25 words
Recording paper according to claim 1, wherein the contrasting intermediate intaglio, or gravure printing ink layer (11) comprises a multi-color intaglio, or gravure printed layer.
Claim 6
Dependent Claim
17 words
Recording paper according to claim 1, wherein the metal of the metallized coating consists essentially of aluminum.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |