A three-layer co-extruded polyethylene film

Abstract

The invention belongs to the technical field of films, in particular to a three-layer co-extruded polyethylene film, comprising a film body; the film body is composed of a top layer film, a middle layer film and a bottom layer film; the film body is composed of a group of end-to-end connected films. The No. 1 film monomer and the No. 2 film monomer are composed, and a tearing end is provided at the connection between the No. 1 film monomer and the No. 2 film monomer, and the top film on the No. 1 film monomer is provided with a connecting film, so The top film and the middle film on the No. 2 thin film monomer are provided with connecting grooves, and the bottom film on the No. 2 thin film monomer is connected with an adhesive film; The connected form allows the length of the film body to be easily and quickly adjusted according to the length of use; at the same time, if the film body is partially damaged, it can also be partially replaced, which greatly saves the use cost of the film and improves the three-layer co-extrusion. The service life of polyethylene film.

Description

technical field [0001] The invention belongs to the technical field of films, in particular to a three-layer co-extruded polyethylene film. Background technique [0002] Polyethylene film refers to the film produced with PE film. PE film has moisture resistance and low moisture permeability. According to the different manufacturing methods and control methods, polyethylene films can produce low-density, medium-density, high-density polyethylene and cross-linked polyethylene and other products with different properties. [0003] Since the size of the existing polyethylene film is often fixed in use, the film has certain limitations when used. The size of the film can be adjusted adaptively, and when the traditional one-piece film is partially damaged, it is often necessary to replace the film as a whole, which affects the service life of the film and causes economic losses and waste of resources. [0004] In view of this, the present invention provides a three-layer co-ext...

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Problems solved by technology

[0003] Because the size of the existing polyethylene film is often fixed in use, the film has certain limitations in use. For example, when the film is attached to the tabletop to play the effect of a tablecloth, the film with a fixed size cannot be placed on the tabletop. Adaptive adjustment of the size of the film, and when the traditional one-piece film is partially damaged, it is often necessary to replace the film as a whole, which affects the service life of the film and causes economic losses and waste of resources.

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