Preliminary Study on High Efficiency Deinking Agent of ONP

Recycling of waste paper is demanded because of the shortage of forest resources, the pollution of environment and the scarcity of papermaking materials. It is important to raise the proportion of waste paper in the fiber materials in papermaking industry. Floating/washing method was used here with imported Old Newspaper (ONP) as elementary material. This article studied the deinking performances of many kinds of surfactants primarily. Among them several surfactants were picked out as deinking agent of Old Newspaper (ONP) because of their better deinking effect.