Microprism reflective membrane and manufacturing method thereof

Abstract

The invention discloses a manufacturing method of a microprism reflective membrane. The manufacturing method comprises the following steps of: (1) selecting a PET (Polyester) film as a substrate; (2) carrying out corona treatment on the surface of the substrate; (3) preparing a microprism pyramid by using UV (Curable) resin; and (4) rapidly drying the microprism pyramid by using light curing, and fixing the bottom surface of the microprism pyramid on the surface of the substrate. The manufacturing method of the microprism reflective membrane, provided by the invention, mainly has the advantages that the microprism pyramid made of the UV resin is directly planted on the PET film, i.e., the PET film is used as the substrate, a PET material has favorable performances such as folding resistance, wear resistance and ultraviolet resistance, cannot deform because of expansion and shrinkage caused by climatic environment change in various regions in different environments, cannot be pulverized or become yellow or wrinkle or arch when being used outdoors and has no layering phenomenon caused by expansion and shrinkage, and thus, the reflection coefficient cannot be rapidly reduced, and meanwhile, the process program is reduced. The invention also discloses a microprism reflective membrane.

Description

technical field [0001] The invention relates to the technical field of reflective film production, in particular to a microprism reflective film and a manufacturing method thereof. Background technique [0002] Reflective film is used in a wide range of fields, including roads, aviation, railways, shipping, car license plates and other fields. Traffic signs made of it can reflect bright and clear light under the illumination of night lights, so that congratulators or other personnel can Seeing safety warning or prohibition signs clearly plays an increasingly important role in ensuring traffic safety. In addition, in recent years, it has been widely used in fortification boards, billboards, street signs, street signs, etc. [0003] The reflective film includes a micro-prism reflective film. In the prior art, the heat-pressing method is used to suppress the pyramid of the micro-prism. The base material of the micro-prism reflective film can only be a soft plastic base materia...

AI Technical Summary

Problems solved by technology

[0003] The reflective film includes a micro-prism reflective film. In the prior art, the heat-pressing method is used to suppress the pyramid of the micro-prism. The base material of the micro-prism reflective film can only be a soft plastic base material such as PVC material, PVC It is polyvinyl chloride, and the pyramid of the microprism is extruded on the PVC material to form the reflective layer, and then the reflective layer is compounded with the highly transparent PET polyester film after coating, PET is polyethylene terephthalic acid Ethylene glycol ester, then the microprism reflective film in the prior art belongs to the combination of two kinds of materials. Among them, the PVC material itself as the base material has softness, and it is easy to heat up and contract in different environments. It will be powdered, yellowed, wrinkled and arched when used outdoors, and when used with PET polyester film, it will be delaminated due to thermal expansion and contraction, resulting in rapid decrease in reflective coefficient, which is very dangerous

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