Manufacturing method of recyclable stone paper

Abstract

The invention discloses a method for manufacturing recyclable and reusable stone paper. The composition of the paper comprises 60 to 85 weight percent of natural inorganic mineral powder, 15 to 40 weight percent of polypropylene and 1 to 5 weight percent of auxiliary agent. A continuous calendaring forming mode is adopted in the manufacturing method; the composition of the paper material does not need to be processed into granular raw material master batch and is directly put into a calendaring papermaking device; and the calendaring papermaking device comprises an automatic raw material weighing machine, an automatic mixing stirrer, a mixing tablet press, a high-density flat extruder, a five-wheel calendaring former and a forming cooling setting machine. Therefore, the used paper can be recycled and regenerated, little polypropylene component is burnt during combustion; high temperature, black smoke or poison gas is not produced during combustion of the paper; many residues containing the natural inorganic mineral powder are produced after combustion, and the paper has environment-friendly property of regressing to the land and the nature.

Description

technical field [0001] The invention relates to a manufacturing method of environmentally friendly paper, in particular to a manufacturing method of recyclable stone paper. Background technique [0002] At present, a variety of synthetic papers have been invented in the world. Among them, the single-layer and multi-layer synthetic papers made of polypropylene as the main component material and inorganic mineral powder as the filler are all made of traditional plastic film products. Manufactured by formula; and in the process of single-layer or multi-layer co-extrusion, the forming die is made of a sheet with a straight die structure, and the two sides of the surface of the sheet are stretched longitudinally, and then the sheet is laminated or The film-coated sheet is then stretched transversely; the middle layer of the synthetic paper produced by this method has two-way stretching, while the surface layer has one-way stretching, and becomes a multi-layer synthetic paper. ...

AI Technical Summary

Problems solved by technology

[0004] In view of the problems in the prior art, the purpose of the present invention is to provide a method for producing recyclable stone paper, so as to solve the problem that the conventional synthetic paper made of polypropylene plastic cannot be used in a short period of time if it is discarded outdoors. It is oxidized and decomposed in the natural environment within a short period of time, failing to reduce secondary pollution; and the cost of synthetic paper made is much higher than that of wood pulp paper.

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