公开(公告)号：US3836368A

公开(公告)日：1974-09-17

申请号：US29070972

申请日：1972-09-20

Applicant: BASF AG

Inventor： JUN M ,  PENZIEN K ,  WEGNER G

IPC: G03F7/00 ,  B41N1/10 ,  G03F1/00 ,  G03F7/025 ,  G03C1/76 ,  G03C3/00

CPC classification number: G03F1/68

Abstract: Photopolymer printing plates having, on top of a photosensitive layer (a) attached to a base, a thin layer (b) of a suspension of finely crystalline conjugated diacetylene compounds in a binder, which compounds change color when photopolymerized. Such printing plates make possible the production of positive copies of a positive transparency by producing in layer (b) an image with areas which do not transmit light by exposure to light having a wavelength of less than 320 m Mu and optional fixing, and initiating photopolymerization in layer (a) by exposing it through the said image to light having a wavelength of from 320 to 450 m Mu and then washing out the unexposed areas of layer (a).

Abstract translation: 光敏聚合物印版在其上粘附有感光层（a）的顶部，在粘合剂中具有微细结晶的共轭二乙炔化合物的悬浮液的薄层（b），该化合物在光聚合时变色。 这样的印版通过在层（b）中产生具有通过暴露于波长小于320μm的光而不透光的区域的图像（任选地固定）并且引发​​光聚合来生成正透明度的正拷贝 在层（a）中通过将其穿过所述图像曝光到具有320至450μm的波长的光，然后冲洗出层（a）的未曝光区域。