Making of printing plates

Details Making of printing plates Making of printing plates

1983-08-29

1985-05-14

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

40594, 156 91, 1562751, 156290, 156299, 156499, B32B 3120

Patent

active

045170363

ABSTRACT:
The present invention concerns the making of printing plates, particularly for litho printing. The invention involves assembling a montage of a plurality of individual films for exposure of the films to a printing plate. In order to assemble the montage a transparent, dry heat-sensitive adhesive coating is used on a carrier sheet and the films are bonded to the carrier sheet by this adhesive on the appropriate application of heat. The heat may be applied by a heating device according to the invention using a transistor as a heat source. Alternatively the assembled montage may be placed in a vacuum cabinet according to the invention, subjected to a vacuum to hold the films and carrier sheet together, and again have heat appropriately applied so that the adhesive bonds the film and sheet together. The heat may be generated by an HF source.

REFERENCES:
patent: 3645823 (1972-02-01), Merk et al.

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