Special high-adhesion low-cost modified film for aluminum-plastic composite tape

By designing a three-layer co-extruded film structure and a modified layer, the adhesion and cost issues of the modified film for aluminum-plastic composite tape were solved, achieving a modified film with high adhesion and low cost, improving heat-sealing strength and tear resistance, reducing production costs, and enhancing flame retardant properties.

CN224276544UActive Publication Date: 2026-05-26JIANGSU JIUTIAN PHOTOELECTRIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU JIUTIAN PHOTOELECTRIC TECH CO LTD
Filing Date
2025-03-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing modified films for aluminum-plastic composite tapes have shortcomings in terms of adhesion and cost, resulting in substandard heat-sealing strength and easy film tearing during production.

Method used

The film adopts a three-layer co-extruded film structure. The middle layer contains 20% nano-calcium carbonate modified layer, and the outer and inner layers are reinforced and protected. The reinforcement layer is made of linear low-density polyethylene, the wear-resistant layer is made of polyurethane coating, and the flame-retardant layer is made of anti-corrosion and flame-retardant agent, which improves adhesion and wear resistance.

Benefits of technology

It improves the bonding strength of aluminum-plastic composite tape, reduces production costs, and enhances the tear resistance and flame retardant properties of the membrane, thus reducing the risk of fire.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224276544U_ABST
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Abstract

The utility model relates to the technical field of aluminum-plastic composite belts, and provides a special high-adhesion low-cost modified film for an aluminum-plastic composite belt, which comprises an aluminum-plastic composite belt film main body and a reinforcing structure, the reinforcing structure is arranged in the aluminum-plastic composite belt film main body, and the reinforcing structure comprises an outer layer film arranged in the aluminum-plastic composite belt film main body, and a middle layer film is adhered to one side of the outer layer film. The reinforcing structure is arranged, the thin film of the aluminum-plastic composite belt is a three-layer co-extrusion film composed of the outer layer film, the middle layer film and the inner layer film, the middle layer film accounts for 40% of the total proportion, the modified layer is added into the middle layer film according to the proportion of 20%, and the modified layer is made of QH1001-2C nano calcium carbonate, can be dissolved with PE and can increase the viscosity of the film, so that the service life of the film is prolonged, and the service life of the film is prolonged. The three-layer co-extrusion film is not layered during film blowing, the self cohesiveness is higher, the combination degree of the three-layer co-extrusion film is improved, the cost of nano calcium carbonate is lower than that of PE, and then the manufacturing cost can be reduced.
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