| 摘要 |
Images and exposure masters for lithography, cartography and engineering drawing reproduction are prepared by forming a protective resist pattern on a layer of an alcohol-soluble nylon and etching away the unprotected portions of the nylon layer with an aqueous solution of sodium salicylate. The nylon layer may include distinctly colored dyes for imaging purposes or may include actinically opaque dyes, pigments or light absorbers for the preparation of photographic reproduction master sheets. The present method employs aqueous media throughout and avoids the use of flammable organic solvents.
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