| 摘要 |
Montage films, duplicating films, color guide films, microfiche film, color transparencies and similar visual aids are prepared from photosensitive articles having a layer of a photosensitive composition coated on a transparent support, preferably a flexible plastic transparent support. The exposed articles are developable with water to form the visual aid. The photosensitive layer is formed from a composition which includes a photosensitive reaction product of a condensation product of a diazonium compound with an arylsulfonic acid, and an epoxy resin which is liquid at ambient temperatures. The diazonium compound is preferably a paradiazodiphenylamine and the preferred condensing agent is formaldehyde or paraformaldehyde. The photosensitive layer can be colored with a permanent dye of a color depending on the type and use of the visual aid. Best results, with regard to water-developability and mechanical strength, are provided by first coating the transparent support with an intermediate layer of an adhesive resin.
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