PROCESS OF FORMING PRINTING PLATES,INCLUDING THE STEP OF SUBJECTING THE MOUNTED TRANSPARENCY TO A SURFACE STATIC ELECTRICITY ELIMINATOR

摘要

1,263,122. Photographic processes. W. R. GRACE & CO. Feb.3, 1969 [June 10, 1968], No.44961/71. Divided out of 1,263,121. Heading G2C. A photographic process for producing photocured images which comprises imagewise exposing a photo-curable layer on a transparent support through the support, uniformly exposing through the support to cure up to 10 mils of the layer from the support and developing to remove the uncured areas of the layer. The developed image may again be uniformly exposed to harden it. Preferred photo-curable compositions are those of Specifications 1,215,591, 1,251,232, 1,102,910 and 1,007,345. Development may be by ultrasonic cleaning as disclosed in Specification 1,263,121.