The Research on Special Printing Effects Based on Gray Component Replacement
The data of CMY ink’s gray balance are got to define the replacement relationship between CMY and K ink by experiment with the digital printer. A special image was got by using CMY and K ink according to the principle of Gray Component Replacement (GCR).The image will have two different appearances by using the spectral response properties of CMY and K ink under visible light and infrared light．This kind of image can achieve the purpose of anti-counterfeiting printing.
OUYANG Yun, XU Min and YANG Li
M. Z. Zhu et al., "The Research on Special Printing Effects Based on Gray Component Replacement", Advanced Materials Research, Vol. 174, pp. 251-254, 2011