Some Applications of Silver Halide Photography in the Graphic Arts.

In addition to the familiar preparation of film negatives and positives for platemaking, silver halide materials are used an increasing number of ways in the graphic arts. Positive-working lithographic printing plates are rapidly prepared directly or indirectly by the transfer of gelatin, developer, or silver complexes to the surface of the plate or to a separate plate. Chemical transfer may be used to give a direct-positive camera film or to produce line and halftone prints directly from copy. A silver halide-gelatin resist is used in the preparation of a low-relief printing plate. Photographic papers containing developing agents provide rapid access to cold-type prints. The structure and use of these materials are described.