Basf Aktiengesellschaft

Siegfried Raiff

Werner Lenz

Peter Richter

Horst Hoffmann

Eckhard Koplin

Helmut Kaufmann

An apparatus for treating photopolymer printing plates, which have already been exposed, with liquid media, in which the plate, mounted on a vertically movable holder, can be moved up and down between an upper loading and unloading chamber and a lower treatment chamber, separated from the upper chamber by a partially open partition, and in which upper and lower rim elements of the plate holder seal the aperture in the partition in a vapor-tight manner when the plate holder is in its terminal positions.

Apparatus for treating printing plates

The invention relates to an apparatus for drying photosensitive sheets, which have already been exposed to light and washed out, for the production of printing plates. According to the invention, a drying chamber is combined with a post-exposure device, the drying chamber and post-exposure device preferably being separated by a partition which transmits actinic light rays. The apparatus according to the invention can be used with advantage in the production of printing plates with photosensitive layers, particularly because it can considerably shorten the times hitherto required for the production of the plates.

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Weisenheim am Berg, Germany

Siegfried Raiff