engleski

Some optical characteristic of Xerox prints in function of ageing

The investigation results of optical stability of the digital Xerox print in relation to the defined conditions of the accelerated ageing are presented in this paper. Three types of the printing substrates have been used in investigations: fine art paper, wood-free natural paper and recycled paper. Non aged substrates, aged substrates, prints on non aged paper, aged prints, and prints on aged paper have been analysed. Not only changes in lightness-darkness have been noticed by ageing, but also shifts in red-green and yellow-blue coordinates of printing substrate. Brightness with and without UV, opacity, ∆ E and L*a*b* in relation to the kind of the printing substrate, printing process and ageing conditions have been discussed in this paper.

optical characteristic; Xerox prints; ageing

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