Paper-plastic pipe preparation method and paper-plastic pipe

Abstract

The embodiment of the invention provides a paper-plastic pipe preparation method and a paper-plastic pipe, and relates to the technical field of paper-plastic products. The paper-plastic pipe preparation method comprises the following steps that: an oxygen barrier material is arranged on a first surface of a paper layer to form an oxygen barrier film; a waterproof material is arranged on a second surface of the paper layer to form a second waterproof film; a waterproof material is arranged on the surface of the oxygen barrier film to form a first waterproof film and obtain a paper-plastic sheet, and the paper-plastic sheet comprises the first waterproof film, the oxygen barrier film, the paper layer and the second waterproof film which are stacked in sequence; and the paper-plastic sheet is subjected to curling and edge sealing waterproof treatment to obtain the paper-plastic pipe. The paper-plastic pipe preparation method can realize the technical effect of improving the waterproof performance of the paper-plastic pipe on the premise of ensuring environmental protection and recyclability.

Description

technical field [0001] The present application relates to the technical field of paper-plastic products, in particular, to a method for preparing a paper-plastic tube and the paper-plastic tube. Background technique [0002] The current toothpaste tube or cosmetic tube is mainly composed of a tube body, a tube shoulder, and a tube cap; among them, the hose tube body is mainly made of aluminum-plastic sheet, all-plastic sheet, and non-barrier sheet; the tube shoulder is a high-density polymer Vinyl, cap is polypropylene. Aluminum-plastic sheet has excellent fragrance retention and barrier properties, but because the aluminum foil cannot be peeled off and recycled at present, the aluminum-plastic sheet cannot be recycled into a hazardous waste product; all-plastic sheet, medium polyethylene cannot be recycled, although It is stipulated that the polyethylene content ≤5% can meet the recycling requirements, but because the outer film and inner film contain high-density polyethy...

AI Technical Summary

Problems solved by technology

Aluminum-plastic sheet has excellent fragrance retention and barrier properties, but because the aluminum foil cannot be peeled off and recycled at present, the aluminum-plastic sheet cannot be recycled into a hazardous waste product; all-plastic sheet, medium polyethylene cannot be recycled, although It is stipulated that the polyethylene content ≤5% can meet the recycling requirements, but because the outer film and inner film contain high-density polyethylene/low-density polyethylene, and the coating film is also low-density polyethylene, the content of low-density polyethylene is high, and the material is not single , leading to the inability to enter the recycling flow of high-density polyethylene blow molding bottles, and can only become hazardous waste products; although non-barrier sheets have certain recyclability, no barriers lead to no fragrance retention; the current environmental awareness of consumers has Gradually strengthened, the demand for environmentally friendly packaging materials is increasing; because paper is made of wood pulp, it is natural and environmentally friendly, and it is a good material to replace and reduce the application of plastics

[0003] In the prior art, the main structure of the paper-plastic pipe is the outer film high-density polyethylene + low-density polyethylene // low-density polyethylene + ethylene / paper // low-density polyethylene / inner

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