Photoinitiated reactions especially in photopolymer technology, as well as photoinitiated colour forming reactions are achievable by applying a reactive substrate selected from a polymerisable and/or crosslinkable composition and a colour changing substance to a support, activating a latent photoinitiator applied with the reactive substance and subsequently exposing the reactive substrate with the resulting photoinitiator therein to photoreaction conditions wherein actinic radiation causes the substrate to undergo polymerisation and/or crosslinking or colour change respectively, the substrate being locally modified in its constitution as a result of its exposure to actinic radiation at least one stage of the method, so that the resulting polymerised and/or crosslinked composition or colour changed substance corresponds in its distribution on the support to the locations of the modification of the substrate.
光引发反应,尤其是光聚合物技术中的光引发反应,以及光引发的颜色形成反应,可通过以下方法实现:将选自可聚合和/或可交联组合物和变色物质的反应性基材涂敷到支撑物上,激活与反应性物质一起涂敷的潜在光
引发剂,然后将反应性基材及其中产生的光
引发剂暴露在光反应条件下,其中的光辐射分别导致基材发生聚合和/或交联或变色、在该方法的至少一个阶段中,基底因暴露于光辐射而在结构上发生局部改变,从而使生成的聚合和/或交联组合物或变色物质在支撑物上的分布与基底发生改变的位置相对应。