Preparation method of purple Youlong silk based on special dye

Abstract

The invention relates to a preparation method of a purple Youlong (a novel environmentally-friendly material) silk based on a special dye. The preparation method comprises the steps of mixing o-phenylenediamine and tartaric acid in an ethanol solution, carrying out ultrasonic treatment and stirring, mixing with Youlong silk and stirring to prepare a four-component mixed solution, carrying out a reaction at a temperature of 175-185 DEG C, cooling to a room temperature, removing the liquid by using an organic filter membrane, and leaving the dyed Youlong silk, and cleaning the residual solution, and drying to obtain the purple Youlong silk. By adopting the method, the covalent bond is formed by self-assembly through one-pot solvothermal reaction, the prepared Youlong silk is uniform in color and stable in structure, has good biocompatibility and can be applied to the fields of information encryption, green dyeing and finishing and the like, and the application range of a dyeing material is widened.

Description

technical field [0001] The invention relates to a preparation method of purple dragon silk based on special dyes, and belongs to the field of dyeing and finishing biomass fibers with special dyes. Background technique [0002] Youlong silk is a more popular environmental protection material in recent years. Yulongsi natural fiber is made by wet spinning. Because of its good hygroscopicity, comfortable wearing and excellent spinnability, youlong silk is often blended and interwoven with cotton, wool or various synthetic fibers. It is used in various clothing and decorative textiles, and has good biodegradability and compatibility. and reproducibility. Youlong silk plays a relatively important role in life and production, and is mainly used in various textiles, clothing, blanket decorations, etc. [0003] The use of dragon silk in various textiles naturally requires colorful colors. At present, the dyes used for dyeing dragon silk include reactive dyes, direct dyes, and vat...

AI Technical Summary

Problems solved by technology

A large amount of hydrolyzed dyes will be produced in the conventional aqueous dyeing process of reactive dyes, and a large amount of inorganic salts need to be added to promote dyeing during the dyeing process, resulting in a large amount of salt in the dyed sewage, which greatly increases the difficulty of treatment of printing and dyeing wastewater

[0004] In addition, the traditional different colors need to be prepared by using the traditional reactive dye ink to prepare the color paste. The reactive dye will be easily hydrolyzed during the steaming process, resulting in a large amount of hydrolyzed dye in the washing wastewater, which will pollute the environment.

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