FORBETTRING AV FORFARANDET FOR BILDFRAMSTELLNING MEDELST ETT STARKT LJUSABSORBERANDE ELLER LJUSOGENOMSLEPPLIGT POSITIVT ARBETANDE LJUSKENSLIGT SKIKT

摘要

This invention relates to an improvement in a material adapted for imagewise exposure to actinic light comprising a transparent or translucent support having a positive-acting quinone diazide light-sensitive coating composition in direct contact with one surface thereof, the improvement comprising that the surface of said coating in direct contact with said support is substantially photodecomposed, and that a gradient exists in said coating wherein the percentage of undecomposed light-sensitive quinone diazide increases with increasing distance from said support. The invention also relates to a method for preparing the novel material.