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Color changing piece

A technology of color-changing film and color-changing layer, which is applied in the field of color-changing film, to achieve the effect of simple structure, easy production and improvement of color change

Active Publication Date: 2018-05-08
HUBEI DINGLONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summary, most of the currently disclosed color-changing sheets of various structures are based on the research and development of durability or new material methods. There is no better method. Can effectively improve the discoloration of the color changing sheet

Method used

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Examples

Experimental program
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Embodiment 1

[0033] Embodiment 1 (the percentage is a mass percentage, and the ratio is a mass ratio):

[0034] The CR-39 disc was used as the base material, soaked in 5% potassium hydroxide aqueous solution at 60 degrees Celsius for 10 minutes for cleaning, then washed with soapy water and deionized water, and dried with compressed air. The substrate is cleaned with a plasma cleaning machine: under an oxygen flow of 50 ml / min and a pressure of less than 0.5 mm Hg, it is treated for 60 seconds. Then spin-coat the coating solution of the lower color-changing layer on the substrate, and control the rotation speed to make the coating thickness 18 μm. After spin-coating to form a film, the wafer is placed in a nitrogen oven at 100 degrees Celsius to dry for 4 hours. Take out the wafer, and after cooling, spin-coat the second photochromic layer coating solution with a coating thickness of 12 μm. After spin-coating to form a film, put the wafer in a nitrogen oven at 100 degrees Celsius and dry f...

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Abstract

The invention discloses a color changing piece which solves the problem that the color changing capacity of an existing color changing piece needs to be improved. According to the technical scheme, the color changing piece comprises a base material. A lower color changing layer and an upper color changing layer at least cover the outer surface of the base material. The initial light absorption rate of the upper color changing layer is larger than that of the lower color changing layer. The color changing piece is simple in structure and easy to produce and manufacture, and the color changing property of the color changing piece can be effectively changed on the premise of not changing the type of a high polymer material of a color changing material and the color changing piece.

Description

technical field [0001] The invention relates to a photochromic product, in particular to a photochromic sheet. Background technique [0002] The mechanism of photochromic material discoloration is that after the photochromic material absorbs ultraviolet light, the molecular state changes and exists in another structure or aggregation state. At the same time, the absorption rate of visible light is greatly increased. Then, under the action of heat or other means, it reversibly returns to the initial state, and at the same time, the absorption rate of visible light is greatly reduced. Some known photochromic devices, such as photochromic glasses and switchable glass, are made by dispersing color-changing materials in polymers to form devices with color-changing capabilities by infiltration, coating, casting, etc. (such devices are basically Is planar, so this article is called color film). For some reason, the photochromic material also has a lighter color when it does not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C09D175/08C09D7/63C08G18/32C08G18/48C08G18/66C08L69/00
CPCC08G18/3206C08G18/3876C08G18/4825C08G18/4854C08G18/6674C08G18/6677C08J7/042C08J2369/00C08J2475/08C09D175/08
Inventor 朱顺全谢伟
Owner HUBEI DINGLONG CO LTD
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