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Preparation method of wet-process Maya-blue-like dye

A blue dye, Maya's technology, applied in the direction of organic dyes, can solve the problems of uneven color, poor weather resistance, etc., achieve uniform reaction, and improve the effect of acid and alkali resistance

Active Publication Date: 2013-04-17
中国科学院兰州化学物理研究所盱眙凹土应用技术研发中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dry method has the characteristics of simple process and easy production, but it also has disadvantages such as uneven color and poor weather resistance.

Method used

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  • Preparation method of wet-process Maya-blue-like dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: Dissolve 0.1g of indigo in 100mL of ethanol, add 10g of attapulgite clay to absorb at room temperature for 2h under stirring, then add 0.01g of tetraethyl orthosilicate and 0.5mL of ammonia water, heat up to 60°C and continue the reaction for 48h, after cooling to room temperature Filter, wash with ethanol, and dry at 130°C for 10 h to obtain the product. The product stability is shown in Table 1.

Embodiment 2

[0020] Example 2: Dissolve 0.2g of methylene blue in 100mL of water, add 10g of attapulgite clay to absorb at room temperature for 2h under stirring, then add 50mL of ethanol, 0.2g of sodium silicate and 0.5mL of hydrochloric acid, heat up to 80°C and continue the reaction for 26h, cool to room temperature and filter , washed with ethanol, and dried at 190°C for 7 hours to obtain the product. The product stability is shown in Table 1.

Embodiment 3

[0021] Example 3: Dissolve 0.3g of methyl violet in 100mL of toluene, add 10g of attapulgite clay to absorb at room temperature for 2h under stirring, then add 0.2g of vinyltriethoxysilane and 0.5mL of sodium borohydride, and heat up to 90°C to continue the reaction After cooling to room temperature for 10 hours, filter, wash with ethanol, and dry at 220°C for 5 hours to obtain the product. The product stability is shown in Table 1.

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PUM

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Abstract

The invention discloses a preparation method of wet-process Maya-blue-like dye, which comprises following steps: firstly, dissolving the dye macromolecules in water or organic solvent, then adding attapulgite clay and performing adsorption for 2 hours at room temperature; in the next place, adding silicon compound and catalyst, rising the temperature to 60-100 DEG C and reacting for 4-48 hours, cooling to room temperature, and filtrating and washing; and finally, drying at 100 DEG C for 4-10 hours and obtaining Maya-blue-like dye. Compared with the dry method, the Maya-blue-like dye prepared by the method provided by the invention is provided with the properties of uniform tinct, acid and alkali resistance, resolvent resistance, ultraviolet ray resistance and the like, and is provided with extensive application prospect in the fields of paint and cultural relic reparation and the like.

Description

Technical field [0001] The present invention involves a method of preparing a wet Maya blue dye. It is more specifically to prepare the method of preparing Maya blue dye by the convex rod clay and silicon compounds.field. Background technique [0002] Mayan blue has gorgeous colors and lasting stability.Boiling water, high concentration of acid or alkali, and various organic solvents cannot destroy its structure. The temperature changes and humid air after years of temperature and humid air cannot fade.The specific preparation method of Mayan blue has no document record.Studies have shown that Maya Blue is formed by mixing a bolt -mounted cymbal ingredients from bumps.In recent years, the causes of Maya Blue have attracted widespread attention, and research focuses on the effects of component analysis and the role of bumps and clay.Function is the key to its excellent stability. [0003] At present, the preparation method of Maato blue dye is mainly dry method.Mix the bumps clay ...

Claims

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Application Information

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IPC IPC(8): C09B67/42C09B67/08
Inventor 张俊平王爱勤尹建军牟斌
Owner 中国科学院兰州化学物理研究所盱眙凹土应用技术研发中心
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