High-weather-resistance reflective film and manufacturing method thereof

By using a specific composition of adhesive material and silicone coating in the reflective film, the problems of easy oxidation and insufficient adhesion of the reflective film in outdoor environments are solved, achieving long-lasting weather resistance and self-cleaning properties, making it suitable for traffic signs and other fields.

CN122430952APending Publication Date: 2026-07-21常州市晶德锐反光材料有限公司
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Patent Information

Application Number
CN202610546402.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-23
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing reflective films are susceptible to oxidation, moisture penetration, and chemical corrosion in outdoor environments, leading to reduced reflectivity, insufficient adhesion, and easy peeling and detachment after long-term use. Furthermore, they lack self-cleaning capabilities, hindering their promotion and application in high-value-added fields.

Method used

The adhesive material is composed of hydroxyl-containing acrylate resin, IPDI prepolymer, UV329 ultraviolet absorber and antioxidant 1076. It is combined with corona treatment to enhance the interfacial bonding force, and the organic silicon coating forms a composite rough structure with activated nano-silica to form a self-cleaning effect, fix the glass microspheres and enhance the resistance to water vapor penetration and chemical corrosion.

Benefits of technology

It achieves long-lasting weather resistance and self-cleaning properties of reflective film, maintains high-efficiency retroreflective capability, is suitable for long-term use in various environments, is suitable as a traffic sign, and broadens the scope of application.

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Abstract

The invention relates to the technical field of traffic safety, in particular to a high-weather-resistance reflective film and a manufacturing method thereof. The high-weather-resistance reflective film comprises a PET film, a reflective adhesive layer covering the surface of the PET film, and an organic silicon coating covering the surface of the adhesive layer, the reflective adhesive layer is formed by coating the surface of the PET film with an adhesive material and then uniformly spreading glass beads; the adhesive material is prepared from the following raw materials in parts by mass: 50 to 150 parts of hydroxyl-containing acrylate resin, 5 to 12 parts of IPDI prepolymer, 1 to 2 parts of UV329 ultraviolet light absorber and 0.5 to 1.5 parts of anti-aging agent 1076. The reflective film provided by the invention not only has excellent self-cleaning performance, but also realizes good reflective property and long-term stable weather resistance, not only can effectively reflect incident light, but also can effectively protect the reflective glass beads, can keep the performance for a long time in various environments and conditions, and is suitable for being used as a traffic sign.
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