engleski

Factors of environment and the study of printing substrate properties

In the present technological moment the digital reproduction is accompanied by problems caused by insufficient knowledge of mechanism in printing processes depending on the characteristics of the printing substrates and ink which would ensure the exact reproduction of all graphic information. Except that, the scientific approach of the evaluation of ecological suitableness which is based on the definition, quantification and evaluation of the influences of the determined printing technique on environment, undoubtedly shows the recognizable unfavourable influence in the domain of raw materials, graphic material, printing processes and the disposal of the used products. Only one part of the results of the above mentioned investigations, which concerns the different composition of the printing substrate and the digital prints exposed to the controlled influences of the accelerated ageing, is presented in this work. The investigations comprise non aged and accelerated aged papers of different compositions, prints on aged and non aged papers as well as the prints which were accelerated aged. The investigation results are the contribution to theoretical explanation of the mechanism of the degradation processes in the ageing conditions which is particularly important for the printing output s of continuous value and for the preserving the cultural values.

printing substrate; digital printing; ageing; optical characteristics

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