PRINTING COLOUR CONTROL METHOD - CTV

Asia debut

CTV (Colour Tone Value) is a printing calibration and colour control method based on the colorimetric values obtained from spectral data. CTV compensates the limitation of near neutral and density control. The key is to use colour values (LAB), instead of density, to obtain a consistent and reliable visual result, such as a result where 50% of the dots have the same colour appearance as 50% of the printed colour, and effectively monitor the dot and dot colour changes. ISO published ISO 20654 (Graphic technology Measurement and calculation of spot colour tone value) in 2017, which is mainly used for spot colour control. Advanced Printing Technology Centre (APTEC) researched and applied it to process colour. It can bring better print performance as compared with other methods.