The effect of printing parameters,such as printing speed and fusion technology(including fusion roll temperature & surface,and heating saddle temperature)on deinkability(indicating as brightness,ERIC and speck area)were introduced in this paper.

The deinkability of wastepaper depended not only on printed types,ink compositions and properties, and storage conditions,but also on deinking methods and process conditions.

The effect of storage conditions such as storage period, temperature, humidity and sunshine on the deinkability of old newspaper (ONP) was studied in this paper.

Industrial production experiment on neutral deinking of waste newsprint;

This paper studied single anionic surfactant, single non-ionic surfactant and the synergistic effects of different anionic surfactant and non-ionic surfactant in the ONP neutral deinking.

Using the homemade neutral deinking agent, the conditions which affected the ONP/OMG neutral deinking process were studied.

New studies of magnetic deinking for MOW;

The deinkability of newspaper printed with water-based UV-curable ink was studied in this paper.

Aiming at this disadvantage of alkaline deinking, several available and cheap surfactants was used in experiments to deink the old newspaper under neutral condition.

At present, traditional alkaline deinking method is used in most deinking plant.