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Water-induced color-developing material and preparation method and application thereof

A water-induced and water-displaying technology, applied in chemical instruments and methods, paper coatings, special papers, etc., can solve problems such as environmental pollution, achieve obvious color rendering effects, diverse colors, and solve the effect of non-reusable

Inactive Publication Date: 2019-12-20
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem of environmental pollution caused by the use of writing materials, the present invention provides a water-induced chromogenic material and a preparation method thereof. The material is environmentally friendly and suitable for repeated use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A red hydrochromic material formula: 0.009 g of 3,3-bis(N-octyl-2-methylindole) phthalide, 0.13 g of hydroquinone, N,N-dimethyl 2 mL of methyl formamide solution.

[0018] Preparation process: (1) Add 0.009 g 3,3-bis(N-octyl-2-methylindole) phthalide and 0.13 g hydroquinone to 2 mL N,N-dimethyl In the base formamide solution, stir at room temperature to make it evenly mixed to obtain a slightly yellow mixed solution of the dye and the developer. (2) Coat a layer of 10wt% polyethylene glycol aqueous solution on the filter paper as a protective layer. Then coat the mixed solution of dye and color developer as the color development layer, and the color development layer will appear red when it meets water. When water is lost, the color will return to the original color. Brush a layer of polyethylene glycol aqueous solution on the surface of the solid matrix material, then paste the filter paper on the solid material sheet, after drying, it can be used for children to sc...

Embodiment 2

[0020] A formula of orange hydrochromogenic material: 0.004 g of 3-diethylamino-6,8-dimethylfluoran, 0.09 g of benzoic acid, and 1 mL of N,N-dimethylformamide solution.

[0021] Preparation process: (1) Add 0.004 g of 3-diethylamino-6,8-dimethylfluoran and 0.09 g of benzoic acid to 1 mL of N,N-dimethylformamide solution, stir at room temperature to Mix well to obtain a colorless mixed solution of dye and developer. (2) Coat a layer of 10wt% polyethylene glycol aqueous solution on the filter paper as a protective layer. Then, the mixed solution of the dye and the developer is applied as a color-developing layer, and the color-developing layer becomes orange when it meets water. When water is lost, the color will return to the original color. Brush a layer of polyethylene glycol aqueous solution on the surface of the solid matrix material, then paste the filter paper on the solid material sheet, after drying, it can be used for children to scribble many times.

Embodiment 3

[0023] A yellow water-induced chromogenic material formula: N,N-dimethyl-4-(2-(2-(octyloxy)phenyl)-6-phenylpyridin-4-yl)aniline 0.005 g , 0.11 g of benzoic acid, and 1 mL of N,N-dimethylformamide solution.

[0024] Preparation process: (1) 0.005 g N,N-dimethyl-4-(2-(2-(octyloxy)phenyl)-6-phenylpyridin-4-yl)aniline and 0.11 g benzene Formic acid was added to 1 mL of N,N-dimethylformamide solution, stirred at room temperature to mix evenly, and a light yellow mixed solution of dye and developer was obtained. (2) Coat a layer of 10wt% polyethylene glycol aqueous solution on the filter paper as a protective layer. Then, the mixed solution of dye and developer is applied as a color-developing layer, and the color-developing layer turns yellow when it meets water. When water is lost, the color will return to the original color. Brush a layer of polyethylene glycol aqueous solution on the surface of the solid matrix material, then paste the filter paper on the solid material sheet...

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PUM

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Abstract

The invention discloses a water-induced color-developing material and a preparation method and application thereof, and belongs to the technical field of water-induced color development. The problem of environmental pollution which is caused by writing materials is solved. The water-induced color-developing material includes the following components: a base plate and a water-induced color-developing material body which is arranged on the base plate, wherein the water-induced color-developing material body comprises a matrix material, polyethylene glycol and a N,N-dimethylformamide mixed solution of dye and a developer, and the N,N-dimethylformamide mixed solution of the dye and developer comprises, in percent by mass, 0.1-4% of the dye, 2-18% of the developer and 80-95% of N,N-dimethylformamide. The prepared material is green and environmentally friendly, and is suitable for repeated use.

Description

technical field [0001] The invention belongs to the technical field of water-induced color development, and in particular relates to a water-induced color development material and a preparation method thereof. Background technique [0002] With the increase of the population and the development of the economy, the demand for the total amount of resources is increasing, and the difficulty of environmental protection is becoming more and more difficult. It is necessary to save resources and protect the environment. However, traditional writing or graffiti materials are generally disposable, and are treated as garbage after use, which often causes a huge waste of resources and serious environmental pollution. Therefore, it is particularly important to develop a reusable material. Contents of the invention [0003] Aiming at the problem of environmental pollution caused by the use of writing materials, the present invention provides a water-induced chromogenic material and a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/82D21H27/00D21H19/24D21H21/28B43L1/00B32B29/00
CPCB32B29/005B32B2250/02B32B2250/26B32B2554/00B43L1/002D21H19/24D21H19/824D21H21/28D21H27/00
Inventor 李明璐韩辉刘洋闫亚楠宋胜梅董川双少敏
Owner SHANXI UNIV