Waste paper-plastic composite bags can be recycled by separation of paper-plastic composite bags, there are usually two methods:

First, through the method of pure heating

The paper surface of the paper-plastic composite material is placed flat on the heating plate and heated through the heating plate; When the temperature between 150℃ ~ 280℃; After 20 to 50 seconds of heating, the plastic on the paper-plastic composite material began to shrink and deform from the paper surface.

This method can separate the waste paper plastic bags which can not be treated in the past, so that the waste paper can be recycled and can be used for pulping and papermaking. Waste plastic can be recycled granulation, re-drawing paper plastic composite bag, or injection into new plastic products.

Two, separate the paper monomer through organic solvent dissolution

To waste paper-plastic composite materials as raw materials, dissolved with organic solvent separation of paper monomer, pulp and paper making process, raw materials in the dissolved tank with organic solvent, heating, stirring, dissolve the plastic layer of paper-plastic composite materials, separate paper monomer and other monomer layer, after drying, sorted out paper pulp and paper.

The method is simple and feasible. The separation efficiency of paper-plastic composite bag is high and the effect is ideal. The separated paper can be used for papermaking and the production cost of papermaking is reduced. Woven bags can be used to recycle and re-create woven bags or other plastic products, to achieve comprehensive utilization of resource recycling, protect the environment, with good social and economic benefits.