Abstract

In this paper a degradation of the photopolymeric material (PhPM), used as printing plate in flexography reproduction technique, caused by accelerated aging has been observed. Since the basis process for production of printing plates from the PhPM is radical cross-linking process caused by exposing to UV wavelengths, the assumption was that improper storage or irregular handling of the PhPM plate can change the surface and structure characteristics of the plates. Results have shown that aging process causes degradation in the structure and changes in the surface of the PhPM printing plate.

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