Continuous duplicating sheets

Details Continuous duplicating sheets Continuous duplicating sheets

1973-08-10

1977-04-19

Coughenour, Clyde I.

Printing

Planographic

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

1014011, 156 90, 427152, 427179, 427261, 427300, 428514, B41M 502, B32B 3300

Patent

active

040181626

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: 3216350 (1965-11-01), Sharkey
patent: 3287153 (1966-11-01), Schwarz et al.
patent: 3418148 (1968-12-01), Barz
patent: 3427971 (1969-02-01), Steber et al.
patent: 3484271 (1969-12-01), Kaliski et al.
patent: 3490368 (1970-01-01), Bean
patent: 3607527 (1971-09-01), Morley
IBM Technical Disclosure Bulletin, (Elt et al.), vol. 13, No. 9, Feb. 1971, p. 2476.

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