Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making printing plates
Patent
1996-08-13
1998-05-12
Hamilton, Cynthia
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making printing plates
430325, 430327, 4302711, G03F 7095, G03F 716
Patent
active
057503150
ABSTRACT:
A compressible printing plate is prepared by casting liquid photopolymerizable resin directly onto a compressible material having open cells on its surface. The photopolymerizable resin is incompletely cured by exposure to actinic radiation, preferably in the absence of a coverfilm covering the photopolymerizable resin. A further layer of photopolymerizable resin is then cast onto the incompletely cured resin, and the whole exposed to actinic radiation through an image-bearing transparency. A release composition may be placed between the image-bearing transparency and the photopolymerizable resin to provide for decreased adhesion therebetween. After development, an image-bearing laminate suitable as a printing plate for flexographic printing is obtained. The printing plate achieves excellent short and long term adhesion between the compressible layer and the photopolymer plate, without the necessity of a tie layer or adhesive therebetween.
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Cordani John L.
Hamilton Cynthia
MacDermid Imaging Technology, Inc.
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