Method and apparatus for printing raised ink images

Printing – Planographic – Lithographic plate making – and processes of making or using...

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Details

101170, 101350, 101395, 1014011, 101426, 101216, B41L 1114, B41L 2706, B41L 2708, G03F 702

Patent

active

041529863

ABSTRACT:
A method of printing a raised ink image on a substrate for use as a hectographic or spirit duplicating master or the like involving forming a printing plate having a raised image area thereon, the latter having a plurality of regularly spaced, screen-like depressions therein for increasing the amount of the ink carried by the raised image area. The plate is mounted on the plate roll of a rotary press and ink is applied to the plate. The plate and the sustrate are then brought into printing engagement with one another and a raised ink image is transferred to the substrate.
Apparatus for carrying out the above-described method and details of the printing plate are also disclosed.

REFERENCES:
patent: 2260364 (1941-10-01), Case
patent: 2268594 (1942-01-01), Huber
patent: 2456608 (1948-12-01), Alger
patent: 3098437 (1963-07-01), Tyma, Jr. et al.
patent: 3285169 (1966-11-01), Hartwig
patent: 3587463 (1971-06-01), Granger
patent: 3613578 (1971-10-01), Heurich
patent: 3891443 (1975-06-01), Halpern et al.

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