Continuous duplicating process

Details Continuous duplicating process Continuous duplicating process

1976-11-08

1978-10-24

Coughenour, Clyde I.

Printing

Planographic

Lithographic plate making, and processes of making or using...

101426, 428914, B41M 502, B32B 3300

Patent

active

041215222

ABSTRACT:
A dry duplicating method comprising the steps of pressure-imaging a continuous master web with images capable of exuding liquid ink under the effects of contact pressure such as roller pressure and collecting the imaged master web on a roll for duplicating use. The master web is such that at least one surface is receptive to the pressure-applied images but neither surface is capable of absorbing the liquid ink to any substantial degree. The imaged web is duplicated by continuously bringing it into surface contact with an ink-absorbent copy web while pressure is applied to exude the liquid ink from the master images onto the copy web to form a duplicate copy, after which the web is continuously rolled up on another roller for reuse.

REFERENCES:
patent: 2271758 (1942-02-01), Champion
patent: 2280985 (1942-04-01), Toland et al.
patent: 3252413 (1966-05-01), Sharkey
patent: 3484271 (1969-12-01), Kaliski et al.
patent: 3595683 (1971-07-01), Newman

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