Large-size micro-prism type reflecting material die and preparation method thereof

A reflective material, micro-prism type technology, applied in metal material coating process, optics, optical components, etc., can solve the problems of reducing production cost, complex production process, reducing the complexity of production process, etc., to reduce manufacturing cost, reduce Production cost, the effect of reducing the complexity of the production process

Inactive Publication Date: 2009-11-04
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of the prior art such as complex structure, complex production process, small size of reflective materials and products formed at one time, and high production cost, the present invention proposes a large-size microprism that can be processed and formed at one time using a general-purpose PVC material with low price The reflective material mold and its preparation method achieve the purpose of greatly increasing the size of the once-formed reflective material and products, reducing production costs, and reducing the complexity of the production process

Method used

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  • Large-size micro-prism type reflecting material die and preparation method thereof
  • Large-size micro-prism type reflecting material die and preparation method thereof
  • Large-size micro-prism type reflecting material die and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A large-scale microprism-type reflective material mold, including a mold substrate and a metal film coated on the mold substrate, the front of the mold substrate is pressed with a dense and evenly arranged concave prism array structure, and the mold substrate is coated The metal film is copper metal film and nickel metal film successively, and the mold substrate material is polycarbonate. The independent unit of the prism array structure is a regular triangular pyramid structure, the angle between the side surface and the bottom surface of the regular triangular pyramid is 19.47 degrees, and the side length of the bottom surface in the regular triangular pyramid structure is 120 microns.

[0031] The manufacturing process steps of a large-scale microprism type reflective material mold are as follows:

[0032] (A) The side length of the independent unit bottom surface of the prism array structure is set to 120 microns, according to the known technical methods of those skil...

Embodiment 2

[0041] The large-scale microprism type reflective material mold and production operation are the same as in Example 1, the difference is:

[0042] In step (D), a layer of copper metal film with a thickness of 250 nanometers is plated on the small-sized metal stencil processed in step (C). The coating method adopts electron beam evaporation, and the vacuum degree is 1×10 -3 Pa, through the calibration experiment, the coating rate is 1 nanometer per second, and the coating is finished after 250 seconds, and a copper metal film of 250 nm is obtained.

[0043] In the step (G), a copper metal film with a thickness of 250 nm is plated on the large-size template of the polycarbonate material made through the step (F), and the coating method is the same as that of the step (D).

[0044] All the other steps are the same as in Example 1.

Embodiment 3

[0046] The large-scale microprism type reflective material mold and production operation are the same as in Example 1, the difference is:

[0047] In step (D), a layer of copper metal film with a thickness of 100 nanometers is plated on the small-sized metal template processed in step (C). The coating method adopts electron beam evaporation, and the vacuum degree is 1×10 -3 Pa, through the calibration experiment, the coating rate is 1 nanometer per second, and the coating is finished after 100 seconds to obtain a 100 nanometer copper metal film.

[0048] In the step (G), a copper metal film with a thickness of 100 nm is plated on the large-size template of the polycarbonate material made through the step (F), and the coating method is the same as that of the step (D).

[0049] All the other steps are the same as in Example 1.

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Abstract

The invention discloses a large-size micro-prism type reflecting material die and a preparation method thereof. The method comprises a die substrate and a metallic film plated on the die substrate; compactly and equably distributed concave prism array structures are compacted on the front face of the die substrate; the metallic film plated on the die substrate is copper metallic film and nickel metallic film in sequence; the die substrate is made of polycarbonate, polymethyl methacrylate or polyimide. The invention further discloses a preparation method of the large-size micro-prism type reflecting material die; the combined technology of precise mechanical process and electro-forming technique are used so that the manufacturing cost is reduced. The large-size micro-prism type reflecting material die provided by the invention can use general cheap PVC material to manufacture large-size micro-prism type reflecting material and product in one step; therefore the difficulty of the production flow and the production cost of the reflecting material and product are reduced.

Description

(1) Technical field [0001] The invention relates to a large-scale microprism type reflective material mold and a preparation method, which are suitable for manufacturing personal and road traffic safety reflective materials and products. (2) Background technology [0002] In recent years, on the one hand, due to the rapid development of society, automobiles have increasingly become an indispensable means of transportation for people. On the other hand, with the increase of motor vehicles, traffic accidents have also increased significantly. Statistics show that the probability of accidents related to pedestrian attire and road signs is 70%, and distinctive pedestrian attire and road signs can give drivers good conditioned reflexes. Pedestrians wear clothes decorated with reflective materials, and use reflective materials to set eye-catching traffic signs and vehicle license plates, which can reduce the traffic accident rate by 30% to 40%. At present, reflective materials ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/122B29C33/42B29C33/38B29C33/40B23D1/26B23D13/00C25D1/10C23C14/20C23C14/30C23C28/02
Inventor 乐孜纯张明刘恺全必胜维切斯拉夫·彼得罗夫香诺伊罗·赛门
Owner ZHEJIANG UNIV OF TECH
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