Neutral gray is more difficult with a color in the printing process, in which a color version of the network little change (or even 1% of the network change), the human eye will be able to feel it, to print, the control outlets within a small range of variation is difficult. Large areas of color ink quantity, but also easy to see the difference of color, when large blocks of color and images in the same ink discharge path, it is difficult to control the amount of ink printed at the same time take care of both. From the current situation, the actual production quantities of custom gift boxes, analog proofing substantially central printing spot colors can not be achieved. Spot color hue more standard chromatography based, digital proofing printing market only as a reference. Proofing process gift box manufacturers, are generally converting spot colors to CMYK four-color ink batch custom gift boxes, and then print ink to simulate spot colors in CMYK process color overprint, prone to errors. Batch custom gift boxes, gift boxes, Wong Tai Printing Co., Ltd. provided by the Dongguan City, Wong Tai color printing paper. Dongguan City, Wong Tai color printing paper Limited (www.dgwangtai.com.cn) strong, credible, in Dongguan, Guangdong paper printing industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Wong Tai into the brilliant color and you work for a better future!