Studies on Wet Picking and Wet Resistance of Offset Paper
Surface wet picking and wet resistance can occur in offset printing process because offset ink is of high tack and viscosity,the printing speed is relatively high and the dampening solution(water)is used in offset printing process.In this paper,the impact of wet picking and wet resistance on two types of paper,coated paper and offset paper were studied using IGT printability tester to simulate the real printing process.The results showed surface wet picking and wet resistance occurred on both coated paper and offset printing paper.In addition,the degree of surface wet picking and wet resistance in grain direction(machine direction)and at the wire side of the paper was lower than that in cross direction and the felt side of offset printing paper if the printing speed and the quantity of fountain solution were definite.But surface wet picking and wet resistance of coated paper were almost not subject to its grain direction and two-sides.The change patterns of wet picking and wet resistance were determined by the structure and performances of the paper samples.
coated paper offset paper wet picking wet resistance
XIAOKUN QI YONGGANG YANG CHUNXIU ZHANG
Bejing Institute of Graphic communication,Beijing 102600,China Bejing Institute of Graphic communication,Beijing 102600,China;Tianjin Key Lab of Pulp & Paper,Tianj
国际会议
第二届国际造纸与环境学术会议(The Second International Papermaking & Environment Conference)
天津
英文
905-910
2008-05-14（万方平台首次上网日期，不代表论文的发表时间）