申请人:CIBA-GEIGY AG
公开号:EP0302827A2
公开(公告)日:1989-02-08
A process for the formation of an image on a substrate having an electrically conductive surface comprises
(i) applying a photopolymerizable film to said surface by electrodeposition from a composition comprising a solution or dispersion in an electrodeposition medium or a mixture of (A) a photopolymerizable material having, per average molecule, more than one photopolymerizable ethylenically unsaturated group, and (B) a film-forming polymer having in the same molecule a photoinitiating residue which initiates polymerization of said photopolymerizable group on exposure to radiation and a salt-forming group which is present at least partially in ionized form, said polymer being substantially free from ethylenic unsaturation,
(ii) subjecting the film to radiation in a predetermined pattern, thereby polymerizing exposed areas of the film, and
(iii) removing areas of the film not exposed in stage (ii).
The process is useful in the production of printing plates and printed circuits.
在具有导电表面的衬底上形成图像的工艺包括
(i) 通过电沉积将可光聚合薄膜涂在所述表面上,电沉积物包括电沉积介质中的溶液或分散液或以下物质的混合物 (A) 可光聚合材料,其每个平均分子具有一个以上可光聚合的乙烯不饱和基团、(B) 成膜聚合物,在同一分子中具有光引发残基,在暴露于辐射时引发所述可光聚合基团的聚合,以及至少部分以离子化形式存在的成盐基团,所述聚合物基本上不含乙烯不饱和、
(ii) 以预定模式对胶片进行辐射,从而使胶片的暴露区域聚合,以及
(iii) 去除薄膜在第(ii)阶段未暴露的区域。
该工艺适用于印制板和印刷电路的生产。