In order to ensure the best colour reproduction, we purchased 3 the highest class X-Rite eXact spectrophotometers for colour control, as well as for stability and standardization of printing. The purchased equipment enables the control of even small colour differences, imperceptible to the naked eye, which makes it possible to give up the method of the visual comparison of the colour of samples. It translates at the same time into elimination of errors resulting from optical evaluation. In addition, the X-Rite eXact spectrophotometer is equipped with the Pantone library, which, besides CMYKA density measurement, guarantees the possibility of easy measurement of spot colors.