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Black pigment solution, grey pigment solution and preparation method thereof

A technology of black pigment and pigment liquid, applied in the direction of pigment slurry, etc., can solve the problems of low developability, adhesion and stability

Inactive Publication Date: 2017-11-03
FUYANG XINYIHUA MATERIAL TECH
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  • Abstract
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Problems solved by technology

[0003] The black pigment currently used is generally carbon black. In order to improve the light-shielding property, the concentration of the black pigment needs to be increased. However, the higher the black pigment concentration, the lower the developability, adhesiveness, and stability of the black pigment liquid, so it needs to have higher light-shielding properties. black pigment solution to improve its shading performance

Method used

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  • Black pigment solution, grey pigment solution and preparation method thereof
  • Black pigment solution, grey pigment solution and preparation method thereof
  • Black pigment solution, grey pigment solution and preparation method thereof

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preparation example Construction

[0054] Correspondingly, the embodiment of the present invention also provides a preparation method of a black pigment liquid, which is schematically shown in figure 1 In particular, the following steps are included:

[0055] S1: Nanoparticles 11 are added to a Tris-HCl (tris(hydroxymethyl)aminomethane) solution of dopamine, stirred to form a layer of polydopamine nanolayers 12 on the surface of nanoparticles 11, centrifuged and washed to obtain black Nanoparticles13.

[0056] In this step, the stirring time may be 15-30 hours, and the stirring temperature may be 10-30°C, preferably 20-25°C.

[0057] Since the preparation methods of nanoparticles of various sizes are very mature, nanoparticles can be obtained commercially, for example, ZnO, TiO 2 and other nanoparticles; or, according to the existing technology, nanoparticles of different sizes can also be obtained by self-made methods, for example: according to 30nm-1000nm SiO can be obtained by hydrolyzing tetraethyl orth...

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Abstract

The invention discloses a black pigment solution, a grey pigment solution and a preparation method thereof, and relates to the field of displaying. The light shading performance, the thermal stability and the impedance property of the black pigment solution can be improved effectively. The black pigment solution comprises black nano-particles. The black nano-particles comprise nano-particles and polydopamine nano layers wrapping the surfaces of the nano particles. The black pigment solution, the grey pigment solution and the preparation method thereof are suitable for preparation processes of black matrixes, black frames and grey frames.

Description

technical field [0001] The invention relates to the display field, in particular to a black pigment liquid, a gray pigment liquid and a preparation method thereof. Background technique [0002] In the field of liquid crystal display, it is usually necessary to use high light-shielding materials such as black pigment liquid to prepare black frames, or to prepare black matrix to suppress color mixing between red, green, and blue monochromatic lights, and to prevent light leakage and improve contrast. [0003] The black pigment currently used is generally carbon black. In order to improve the light-shielding property, the concentration of the black pigment needs to be increased. However, the higher the black pigment concentration, the lower the developability, adhesiveness, and stability of the black pigment liquid, so it needs to have higher light-shielding properties. Black pigment solution to improve its shading performance. [0004] In addition, the existing black pigment ...

Claims

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Application Information

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IPC IPC(8): C09D17/00
CPCC09D17/00
Inventor 于祥赵明
Owner FUYANG XINYIHUA MATERIAL TECH
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