Aluminum-plastic composite pipe manufacturing method thereof

Abstract

The invention relates to an aluminium and plastic composite pipe and a fabrication method thereof. The pipe wall of the composite pipe, from interior to exterior, sequentially comprises a plastic thermal sealing layer, a first bonding layer, a separate layer, a second bonding layer and a plastic printing layer; the plastic thermal sealing layer is closely bonded to the internal wall of the separate layer by the first bonding layer; the plastic printing layer is closely bonded to the external wall of the separate layer by the second bonding layer. The fabrication method comprises a first extrusion composition, a laser processing, a second extrusion composition, a first cutting and printing operation and a second cutting and pipe fabrication operation. The aluminium and plastic composite pipe and the fabrication method have the advantages of having certain a laser anti-counterfeiting function, good separation performance, easy extrusion without rebounce, preventing the pollution of bacteria, long shelf life, good opacity, good folding resistance, good explosion strength, extrusion resistance, good flexibility, smooth surface, bright colours, more brilliant appearance, wide applicable range, which can be widely applied to the industries such as foods, medicines, daily chemical products, etc.

Description

technical field [0001] The invention relates to the field of pipes, in particular to the field of composite pipes, in particular to a method for manufacturing aluminum-plastic composite pipes. Background technique [0002] In modern production and life, more and more pipes are used, and these pipes play an increasingly important role in various fields. At the same time, with the continuous development of new materials, various new types of pipes have emerged, especially aluminum-plastic composite pipes, which have emerged due to their characteristics of no abnormal toxicity, good hygiene, and good airtightness. And it has become the mainstream and industry standard of the modern composite pipe industry. [0003] Although modern aluminum-plastic composite pipes can meet the needs of most occasions, they still have certain shortcomings, such as poor gas, moisture and fragrance barrier properties, easy rebound after extrusion, and easy air entry to cause bacterial contaminati...

AI Technical Summary

Problems solved by technology

[0003]Although modern aluminum-plastic composite pipes can meet the needs of most occasions, they still have certain shortcomings, such as poor gas, water vapor and fragrance barrier properties , easy to rebound after extrusion, air is easy to enter and cause bacterial contamination, and the shelf life is short, poor shading, poor folding resistance, low burst strength, not resistant to extrusion, and poor flexibility, dull color, dull and boring , and more importantly, it is impossible to conveniently set anti-counterfeiting marks, which creates an opportunity for counterfeit and shoddy products

All of the above limit the scope of application of traditional aluminum-plastic composite pipes, and bring some inconvenience to people's work and life

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