Reflective film with moth eye structure and preparation technology thereof
A preparation process and technology of reflective film, which is applied in the field of optics, can solve the problems of low reflective rate of reflective film, and achieve the effects of simple production process, improved reflective effect and reasonable design
Active Publication Date: 2016-03-02
SHANGHAI JIAO TONG UNIV
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Problems solved by technology
[0003] At present, there are problems such as low reflective rate of reflective film in the market
Method used
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[0031] see figure 1 , with reference to figure 2 , image 3 , the reflective film with a moth-eye structure of the present invention includes a PET layer 1, a reflective structure layer 2 and a moth-eye anti-reflection structure layer 3, the light-reflection structure layer 2 is arranged on one side surface of the PET layer 1, and the moth-eye anti-reflection structure layer 3 is arranged on the other side surface of PET layer 1.
[0032] The reflective structure layer 2 in the present invention includes a resin bottom layer 21 and a UV light-curable resin layer 22, the resin bottom layer is attached to the PET layer, and the UV light-curable resin layer is attached to the resin bottom layer.
[0033] The UV photocurable resin layer in the present invention is a pyramid-shaped triangular pyramid structure, three sides are perpendicular to each other, and the length of the bottom side is 10mm-175mm. The smaller the value of the base length within the allowable range, the hi...
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The present invention provides a reflective film with a moth eye structure and a preparation technology thereof. The reflective film provided by the invention comprises a PET layer, a reflective structure layer and a moth eye anti-reflection structure layer. Through the geometric optics principle, the reflective structure layer is configured to take a pyramid structure with three vertical surfaces as a reflective structure. Through the bionics principle, the moth eye anti-reflection structure layer is configured to take a moth eye micro-nano structure as an anti-reflection layer. Compared with the traditional reflective film, the reflective film provided by the invention has a better reflective effect. Through adoption of reel-to-reel UV two-sided rolling technology (R2R UV-NIL), the preparation technology provided by the invention comprises adhesive dripping, filling, UV illumination and demolding. According to the invention, different structure layers may be printed on the surfaces at two sides of the PET layer; and moreover, the preparation technology is simple, and the fast and large-area commercialization requirement with high resolution and high throughput may be satisfied.
Description
technical field [0001] The invention relates to optical technology, in particular to a reflective film with a moth-eye structure and a preparation process thereof. Background technique [0002] With the rapid development of automobiles and other means of transportation and road construction technology, road traffic has become a major way of travel for people, bringing great convenience to people. However, when people drive at night, traffic accidents are very likely to occur when the light is dim and the traffic signs cannot be seen clearly, and then the huge loss of personnel and property is caused. Therefore, there is a need for an optical reflective film to improve the reflective effect of traffic signs at night, so as to ensure the safety of driving at night. [0003] At present, existing reflective films on the market have problems such as low reflectivity. Contents of the invention [0004] The object of the present invention is to provide a reflective film with a ...
Claims
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IPC IPC(8): G02B5/124G02B1/118
CPCG02B1/10G02B5/124
Inventor 来新民顾启凡张成鹏彭林法易培云
Owner SHANGHAI JIAO TONG UNIV