Application of a new retention and drainage aid system in PM5 of Fujian Nanping Paper

The application of a new retention and drainage aid system was introduced in PM5 newsprint paper machine in Fujian Nanping Paper Co.,Ltd.,the applying effect and its economic benefits were analyzed.The results show that paper ash content is raised from 7.5% to 10%,retention rate is varied from 60% to 65%,and the cost is reduced by 45.84 yuan per ton product.