摘要：Digital printing technique is used for a wide variety of substrates,one of which are PVC foils.Samples used in this research were printed by digital ink jet printing technique using Mimaki JV22 printing machine and J-Eco Subly Nano inks.As printing substrates,two different types of materials were used (ORACAL 640 - Print Vinyl and LG Hausys LP2712).A test card consisting of fields of CMYK colours was created and printed,varying the number of ink layers applied.Samples were exposed to light after the printing process.Spectrophotometric measurements were conducted before and after the light treatment.Based on spectrophotometricaly obtained data,colour differences ΔE2000 were calculated.Results showed that increasing number of layers,as well as the right choice of substrates,can improve the behaviour of printed product during exploitation.
