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Method for preparing color polymer dispersed liquid crystal films

A technology of dispersed liquid crystal and polymer, applied in optics, instruments, nonlinear optics, etc., can solve the problems of colorful, unable to produce color, etc., and achieve the effect of eliminating visual differences, reducing visual haze, and reducing fog effect.

Active Publication Date: 2014-06-25
江苏同辉新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method can only prepare monochromatic liquid crystal films, and cannot produce colorful and gorgeous decorative effects.

Method used

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  • Method for preparing color polymer dispersed liquid crystal films
  • Method for preparing color polymer dispersed liquid crystal films

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Embodiment 1

[0018] A preparation method of a colored polymer dispersed liquid crystal film, using anthraquinone dyes and azo dyes, the operation steps are as follows:

[0019] A. Mix anthraquinone dyes or azo dyes into liquid crystal raw materials, heat and stir evenly to color the liquid crystal raw materials to form colored liquid crystals; the anthraquinone dyes are 1,5-bis(phenylthio)anthraquinone dyes or 1,5-di(p-alkyl or alkoxy)anilinoanthraquinone dye or 1-(p-alkyl or alkoxy)anilinoanthraquinone dye or 1,5-diamino-4,8- Dihydroxy-2(p-alkoxybenzene)anthraquinone dye or 1,5-diamino-4,8-dihydroxy-3(p-alkoxybenzene)anthraquinone dye or 1,5-diamino- At least one dye or at least three dyes in 4,8-dihydroxy-3,7-bis(p-alkoxybenzene)anthraquinone dyes; azo dyes are p-dimethylaminoazobenzene dyes or bis Azo blue dye (Japanese dye, its product model is G168) or trisazo yellow dye (Japanese dye, its product model is G232); the weight percentage of the dye to the liquid crystal raw material is ...

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Abstract

The invention relates to a method for preparing color polymer dispersed liquid crystal films. The method includes: mixing anthraquinone dye or azo dye into a liquid crystal raw material, and heating with stirring uniformly to enable the liquid crystal raw material to be colored to form color liquid crystals; mixing the color liquid crystals with a polymer monomer uniformly to form a liquid crystal mixture isotropous at a room temperature; mixing the liquid crystal mixture with glass beads, clamping the liquid crystal mixture mixed with the glass beads between two indium tin oxid conductive thin films and rolling to form a liquid crystal thin film; heating to cure the liquid crystal thin film or curing via ultraviolet light to obtain the color polymer dispersed liquid crystal film. The prepared color polymer dispersed liquid crystal film has the advantages that transparence and concealing are achieved and color variation is added.

Description

technical field [0001] The invention relates to a method for preparing a colored polymer-dispersed liquid crystal film. In the invention, anthraquinone dyes or azo dyes are mixed into liquid crystal raw materials, and then mixed evenly with polymer monomers to prepare a colored polymer-dispersed liquid crystal film. liquid crystal film. Background technique [0002] Chinese patent 200810005682.X discloses a method for manufacturing a liquid crystal film. The method for manufacturing a liquid crystal film includes a process of coating a liquid crystal polymer solution on an alignment substrate film and making the alignment substrate coated with the liquid crystal polymer solution In the drying process of film drying, in the drying process, the gas for drying the liquid crystal polymer solution is dehumidified and introduced into a drying furnace. Water is sufficiently prevented from being absorbed into the liquid crystal polymer solution, so that precipitation of the liquid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1334
Inventor 刘俊玲王磊罗建伟张维平赵勤
Owner 江苏同辉新材料有限公司
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