Process for the separation of paper-plastic composite material

Abstract

The invention is a kind of separation method for paper-plastic compound materials; it separates the paper and plastic in order to regenerate them. The paper of paper-plastic compound material are laid on the heating board, it is heated through the heating board; the heating temperature is from 150oC to 280 oC; the heating time is 20-50 seconds, the paper-plastic compound material is heated, thus the paper and plastic are deformed and separated. The invention can separate the paper and plastic to waste paper-plastic. The invention can solve environment protection problem.

Description

technical field [0001] The paper-plastic composite material separation method of the present invention is a method for separating waste and old composite paper-plastic materials, so that paper and plastic are separated for regeneration. Background technique [0002] At present, in the packaging of various powders and granular materials, most of them use packaging bags made of paper-plastic composite materials. This kind of packaging bag is economical and practical, with good quality, strong tensile force, small damage, rainproof and moisture-proof, easy to fold, and low cost; therefore, it is widely used in the packaging and transportation of salt, cement, flour and various chemical materials. However, when the paper-plastic composite bag is recycled after use, it is found that the paper-plastic composite bag cannot be processed directly; the reason 1 is that the paper bag can be degraded but the plastic cannot be degraded; Paper bags cannot be regenerated and granulated; t...

AI Technical Summary

Problems solved by technology

However, when the paper-plastic composite bag is recycled after use, it is found that the paper-plastic composite bag cannot be processed directly; the reason 1 is that the paper bag can be degraded but the plastic cannot be degraded; Paper bags cannot be regenerated and granulated; therefore, the paper-plastic composite material cannot be directly processed, and the paper-plastic must be separated to be processed separately; and there is no such separation method at present, so a new one is developed according to the existing problems in the prior art. It is necessary to use a separation method to overcome the problem that paper-plastic composites cannot be separated.

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