专利名称：Method and assembly for producing
printing plates
发明人：Kenneth M. Strong申请号：US08/829321申请日：19970327公开号：US05813342A公开日：19980929
摘要：Printing plates are formed from a layer of photo polymerizable resin by aprocess and assembly which includes a back masking negative placed over the non-printing side of the resin layer. A connective substrate is positioned between the backmask negative and the resin layer. A negative of the image or images to be formed onthe printing plate is positioned on the side of the resin layer which is to form the printingsurface of the plate. Both sides of the resin layer are exposed to UV light, and the backmask negative serves to allow hardening of the resin only in the areas of the resin layerwhere printing surfaces are located. Thus, a plurality of isolated printing surfaces may beformed on the plate, which printing surfaces are connected together by the connectivesubstrate. In this manner, a photo polymerized floor need not be produced on theprinting plates, allowing increased resin recovery after the plate has been formed.
申请人：MACDERMID IMAGING TECHNOLOGY, INCORPORATED
代理人：William A.Wiggin & Dana Simons
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