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High-saturation optical color-changing material and preparation method thereof

A technology of optical color-changing materials and evaporation method, which is applied in the field of optical color-changing materials and their preparation, can solve the problems that optical color-changing materials are difficult to meet the needs of use, and achieve the effect of compact structure and improved hue saturation

Pending Publication Date: 2020-12-18
HUIZHOU FORYOU OPTICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, with the continuous improvement of requirements in all aspects of production and life, the current optical color-changing materials have been difficult to meet the needs of use in many fields in terms of acid resistance, alkali resistance, and color.

Method used

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  • High-saturation optical color-changing material and preparation method thereof
  • High-saturation optical color-changing material and preparation method thereof

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preparation example Construction

[0021] see figure 1 , figure 1 It is a schematic flow diagram of an embodiment of the preparation method of the optical color-changing material of the present application, and the method includes:

[0022] Step S11: preparing the first optically variable material by physical vapor deposition;

[0023] Step S12: performing heat treatment on the first optically variable material to obtain a second optically variable material.

[0024] Specifically, both the first optically variable material and the second optically variable material can be at least one of titanium-containing optically variable materials, chromium-containing optically variable materials, all-dielectric optically variable materials, etc. Of course, other optically variable materials can also be used , not specifically limited here.

[0025] Further, both the first optically variable material and the second optically variable material can be pigments, such as pigments in powder, granular or flake form, or can al...

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Abstract

The invention discloses an optical color-changing material and a preparation method thereof. The preparation method of the optical color-changing material comprises the following steps of: preparing afirst optical color-changing material by adopting a physical vapor deposition method; and carrying out heat treatment on the first optical color-changing material to obtain a second optical color-changing material. In this way, the hue saturation, brightness, acid resistance, alkali resistance and other properties of the optical color-changing pigment or film can be improved.

Description

technical field [0001] The present application relates to the technical field of optical color-changing materials, in particular to an optical color-changing material and a preparation method thereof. Background technique [0002] Optical color-changing materials have a color-changing phenomenon related to the viewing angle. Observers can observe different colors at different angles, especially when observing at an angle of about 0 degrees or 60 degrees to the normal direction of the surface of the optical color-changing film. , the optically-chromic film will exhibit a distinctly different color. Due to this characteristic, optically variable materials are widely used in anti-counterfeiting, printing and other fields. [0003] However, with the continuous improvement of requirements in various aspects of production and life, the current optical color-changing materials have been difficult to meet the needs of use in many fields in terms of acid resistance, alkali resistanc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/24C23C14/58
CPCC23C14/24C23C14/5806
Inventor 吴伟才龙芬罗华强
Owner HUIZHOU FORYOU OPTICAL TECH
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