FIELD: printing industry.
SUBSTANCE: invention relates to printed products with a colour interference image printed on an inkjet printer by means of sedimentationally stable sol-gel ink in the form of a sol of crystalline titania nanoparticles of the anatase phase, allowing to obtain a colour interference image formed by at least one transparent in the visible spectral range by the refractive layer Xerogel of titanium dioxide with a thickness of 300 nm to 1 mcm, with a refractive index of more than 1.7 and a variable coloration as a function of and the thickness refractive layer prepared using a sol-gel ink in the form of a nanocrystalline titanium dioxide sol in solution of ethanol in water.
EFFECT: possibility of inkjet printing of printed products with colour interference images on non-porous surfaces.
5 cl, 3 dwg
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