The so-called water film wetting or alcohol with a cooling device usually fountain solution water having a temperature of about 10 ℃. Overall, packing fruit boxes, fountain solution cooling effect to offset the heat is unlikely. But remains low fountain solution helps reduce evaporation of alcohol and water in a mixing tank means, and can increase the viscosity of the fountain solution. Waterless offset the lack of cooling effect of dampening solution. No inking unit for constant temperature water offset, the fruit boxes, preferably through the hair to cool the plate cylinder. Water only offset inking unit thermostat. Experiments described in this article is not included in the plate cylinder thermostat. All will be issued infrared heating surface, these rays are available sensitive radiation detectors to measure, and as the temperature display. For absolute measurements require calibration or related to the ability to accurately understand emitting surface. Infrared temperature sensor in this paper is to measure the inking unit, measuring surface mechanical and temperature on the blanket in order to provide constant temperature with the adjustment amount. Fruit boxes for packaging design, Wong Tai color, fruit boxes Ltd. provided by the Dongguan City, Wong Tai color printing paper. Dongguan City, Wong Tai color printing paper Limited (www.dgwangtai.com.cn) Liaobu town of Tuen third industrial zone Dongguan City. Scraps and development in the wave of market economy, Wong Tai currently has high visibility color printing paper, enjoy a good reputation. Wong Tai Printing the entire network business alliance to achieve certification, marking our service and management level has reached a new height. Wong Tai Printing staff willing to work with all people of insight and common development, for a better future.