Preparation method and use of garden burnet natural dye

Abstract

The invention relates to a dye preparation technology and provides a preparation method and use of garden burnet natural dye. The preparation method of the garden burnet natural dye comprises crushing garden burnet rhizome dried in the sun, adding the garden burnet rhizome powder into an ethanol aqueous solution, carrying out reflux extraction at a temperature of 50-70 DEG C for 0.5-2h to obtain extract, filtering the extract and carrying out reduced pressure distillation to obtain the concentrated garden burnet natural dye. The garden burnet natural dye has excellent dyeing effects on protein fibers and a fabric. Through treatment by different mordants, different colors and good color fastness are obtained. The garden burnet natural dye is a natural plant dye with excellent performances. The preparation method has simple extraction processes, short time and no environment pollution in extraction. The fabric dyed by the garden burnet natural dye has a soft color, good color fastness and wear safety, does not cause cancers, malformation or anaphylactic reaction, has good ecological environment compatibility and is biodegradable. The garden burnet natural dye has a low price, fully utilizes natural resources and has a wide market prospect.

Description

technical field [0001] The invention relates to a dye preparation technology, in particular to natural Burnet dye as a dyeing agent for protein fiber fabrics and its application. Background technique [0002] Natural dyes are mainly extracted from plant rhizomes, fruit shells, etc., which have good compatibility with the ecological environment and can be biodegraded. Some natural plant dyes come from Chinese herbal medicines. Besides dyeing, they also have the function of medicine and health care. Therefore, natural dyes have broad application prospects in the fields of high-grade real silk products, home textile products and decorations. [0003] Burnet, also known as Cucumber Fragrance, Yuzha, Yucha, or Sour Chrysanthemum, is a plant of the genus Burnet in the Rosaceae family. It is mainly distributed in the northern temperate zone of Asia, widely distributed in Europe and China, and grows in areas with an altitude of 30 meters to 3000 meters. It often grows in shrubs, h...

AI Technical Summary

Problems solved by technology

[0004] At present, the research on Burnet is limited to traditional Chinese medicine and food coloring, and there is no report on the preparation method and application process of Burnet natural dye.