Directly image printing or form cylinder, and method of imaging

Details Directly image printing or form cylinder, and method of imaging Directly image printing or form cylinder, and method of imaging

1990-05-24

1991-09-03

Anderson, Bruce C.

Radiant energy

With infrared or thermal pattern recording

219216, 346 76PH, G03G 516

Patent

active

050456970

ABSTRACT:
To reduce the energy required upon application of oleophilic or hydrophilic substances, respectively, on a printing or forme cylinder (1, 11) by a thermo transfer process, the cylinder is hollow and made of a radiation transmissive material, such as glass or glass ceramic, and radiation sources (8; 18, 19, 20, 21) are located at the inside thereof, directed, at least to the region of the application of the substances by the thermo transfer process; additional radiation sources may be located ahead of and behind the thermo transfer system (2-6) to preheat the region of thermo transfer, and/or to other circumferential regions to set or burn off or soften the substances, if desired, for subsequent removal and erasing of the information on the cylinder.

REFERENCES:
patent: 3630732 (1971-12-01), Gravenwezel et al.
patent: 3655379 (1972-04-01), Gundlach

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