chapter  5
16 Pages

Exposing the Gelatin Tissue

In order to create a resist matrix for the copper, the positive film image must be exposed onto the sensitized gelatin tissue. A grain or screen texture also must be applied over the image to create ink holding wells in the etched areas of the plate. A traditional aquatint grain can be applied directly to the copper plate, or more easily, a screen pattern can be exposed onto the gelatin tissue prior to the positive exposure.