Dry Offset Printing on the Offset Duplicator.

The process of printing from a direct reading relief plate by offsetting to a rubber blanket has been called dry offset, letterpress or relief offset and high etch offset. A substantial amount of this is now done on a small offset press, the Davidson Dual Duplicator. Photoengraved plates on .032 zinc and etched no more than .015 are used with standard soft rubber ink rollers. The image areas of the paper may be simultaneously embossed by use of two identical plates. Simplified equipment and standard procedures have been worked out.