Offset papers suitable for ink-jet printing

In the work the researches on parameters of offset papers suitable for ink-jet printing were presented. There were used five types of paper (coated and uncoated ones) in two values of grammage. They were printed using two types of ink-jet machine - with pigment aqueous-based inks and UV-curable inks. Before the production, these two machines were calibrated. On papers was printed special test: ANSI IT8/7.3 color chart with 928 control patches. The spectral reflectance of all patches was measured using SpectroScan (Gretag Macbeth) and colorimetric properties: illuminant D50 and standard color observer, angle 2º. After defining physicochemical and mechanical parameters, micro- and macrostructure of papers characterized by the highest colorimetric space volumes, new papers were chosen and their gamut volumes were estimated. The highest gamut volumes characterized offset prints made in UV machines - they were similar to the ones of prints made on papers suitable for digital technique. Thanks to the researches it was shown that for ink-jet printing can be used also offset papers, especially in UV technique.