The synergistic effect of ternary retention and drainage system with different dosage of starch was discussed.

Closing white water circuit will make the environment of wet - end become worse,and it will make the retention and drainage aids system nowadays losing effectiveness.

To optimize the wet end chemistry of paper machine for clean production ——The application of particulate retention and drainage system in high speed newsprint machine;

A study on improving retention and drainage performance in papermaking with asbestos-free latex packing materials

The product was applied in bleached reed pulp as retention and drainage aids.

The application of P47 retention and drainage aid in offset papermaking could consistently improve the first pass retention, reduce the loses of fines and other chemical materials, speed up the water drainage from wire and press parts, lower the production cost and have a great potential for broad application.

Through the optimization of retention and drainage aid system in paper machine,its runnability was increased,paper uniformity and strength were improved significantly with a breaking length gain of 0.