Method for producing reflective film with microprism array structure

A technology of array structure and production method, which is applied in the direction of optics, optical components, and optomechanical equipment, can solve problems such as poor product consistency, low work efficiency, and poor solvent resistance, and reduce the heating and cooling process. The time, reduce the chance of product deformation, the effect of good consistency

Active Publication Date: 2011-09-14
ZHEJIANG DAOMING OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to overcome the hardness and scratch resistance of the microprism existing in the above-mentioned prior art, and heat resistance, solvent resistance are relatively poor, the consistency of the product is not good enough, the production speed is on the low side, and the work efficiency is not good. High defects, provide a new production method of reflective film, this method can greatly improve the performance of the formed microprism, product consistency is good, and has the advantages of simple process, significantly increased production speed, and high work efficiency

Method used

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Effect test

Embodiment 1

[0037] A method for producing a reflective film with a microprism array structure. In the method, an annular belt-shaped continuous molding mold is used. The mold has an inner surface and an outer surface, and the outer surface has a continuous convex shape. A precise microprism array structure, the microprism array structure is the reverse model of the microprism array structure to be processed on the surface of the reflective film, and the ring-shaped belt mold reciprocates along a closed loop. Production method step of the present invention is as follows:

[0038] (1) One layer of photosensitive resin is coated on the surface of one side of the resin film, and the resin film adopts acrylate material;

[0039] (2) drying the resin film coated with the photosensitive resin, so that most of the solvent in the photosensitive resin is volatilized;

[0040] (3) The surface of one side of the resin film coated with photosensitive resin is close to the outer surface of the annular...

Embodiment 2

[0046] A method for producing a reflective film with a microprism array structure. In the method, an annular belt-shaped continuous molding mold is used. The mold has an inner surface and an outer surface, and the outer surface has a continuous convex shape. Precise microprism array structure, the microprism array structure is the reverse model of the microprism array structure to be processed on the surface of the reflective film, the annular belt mold reciprocates along a closed loop, and the annular belt mold adopts a flexible metal belt. Production method step of the present invention is as follows:

[0047] (1) One layer of photosensitive resin is coated on the surface of one side of the resin film, and the resin film adopts acrylate material;

[0048] (2) drying the resin film coated with the photosensitive resin, so that most of the solvent in the photosensitive resin is volatilized;

[0049] (3) The surface of one side of the resin film coated with photosensitive resi...

Embodiment 3

[0055] A method for producing a reflective film with a microprism array structure. In the method, an annular belt-shaped continuous molding mold is used. The mold has an inner surface and an outer surface, and the outer surface has a continuous convex shape. Precise microprism array structure, the microprism array structure is the anti-mold of the microprism array structure to be processed on the surface of the reflective film, the annular belt mold reciprocates along the closed loop, and the annular belt mold is made of nickel metal material . Production method step of the present invention is as follows:

[0056] (1) One layer of photosensitive resin is coated on the surface of one side of the resin film, and the resin film adopts polycarbonate material;

[0057] (2) drying the resin film coated with the photosensitive resin, so that most of the solvent in the photosensitive resin is volatilized;

[0058] (3) The side surface of the photosensitive resin coated on the resin...

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Abstract

The invention relates to a method for producing a reflective film with a microprism array structure. The invention overcomes the defects of poor hardness, scratch resistance, thermal resistance and solvent resistance of a microprism, poor product consistency, low production speed, low working efficiency and the like existing in the prior art. The invention adopts an endless belt-shaped mould of which a protruded continuous precise microprism array structure is arranged on the outer surface and comprises the following production steps that: a resin film is coated with photosensitive resin and then subjected to drying, heated film pressure and quickly solidification by UV light irradiation, so that the resin film coated with the photosensitive resin and the microprism structure on the photosensitive resin layer jointly form a laminated film, and the laminated film is cooled to obtain the reflective film with the microprism array structure. The method has the advantages of simple and convenient operation, high production speed and high working efficiency; and the formed microprism has the advantages of better hardness, scratch resistance, thermal resistance and solvent resistance, and good product consistency.

Description

technical field [0001] The invention relates to a production method of a reflective film, in particular to a production method of a reflective film with a microprism array structure. Background technique [0002] Reflective materials with a microprism array structure are more and more widely used in various road traffic safety facilities, signs and vehicle passive safety protection devices due to their excellent retroreflective properties. The so-called microprism array structure refers to a structure composed of three mutually perpendicular planes, which can perform total internal reflection on the incident light from the front surface, thereby greatly improving the reflection efficiency of the incident light. The plane based on this structure is not limited to a certain size or shape, nor is it limited to the direction of the optical axis of the prism unit. This structure is usually called "cube pyramid", "triangular pyramid" or "trihedron" . [0003] According to the di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B5/124G03F7/00
Inventor 胡智雄胡智彪王嘉伟
Owner ZHEJIANG DAOMING OPTOELECTRONICS TECH
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