Method for dyeing fabric by using natural blue pigment

Abstract

The invention discloses a method for dyeing a fabric by using natural blue pigment. The method for dyeing the fabric by using the natural blue pigment includes following steps: using strains for fermenting the blue pigment, obtaining fermentation liquor, and then extracting the blue pigment so as to obtain blue pigment powder; preparing dye liquor from the blue pigment powder and water, raising temperature of the dye liquor to 35-45 DEG C, placing the fabric in the dye liquor, keeping the fabric in the dye liquor for 10-20min, and then adding sodium chloride, keeping for 10-20min, and next heating the dye liquor to 75-85 DEG C by using temperature of 0.5-5 DEG C, adding sodium carbonate, keeping temperature for 30-60min at temperature of 75-85 DEG C, and then cooling the fabric, and finally completing dyeing of the fabric after washing the fabric with cool water and drying the fabric. The method for dyeing the fabric by using the natural blue pigment extracts the blue pigment, uses the blue pigment as natural pigment obtained through microbial fermentation, and endows the pure cotton fabric with antibacterial performance in dyeing, and the fabric is bright and colorful in color, and has good color fastness to rubbing. The dyeing method is easy to operate and implement, facilitates industrial production, and has a wide application prospect.

Description

technical field [0001] The invention relates to the field of extraction and dyeing of natural blue pigments, in particular to a method for dyeing fabrics with natural blue pigments. Background technique [0002] In recent years, due to the influence of environmental problems and energy problems, people tend to pursue sustainable, environmentally friendly and beneficial methods to prepare dyes. The development of natural dyes is the general trend of the development of applied dyes in the world. Natural dyes refer to dyes obtained from plants, animals or mineral resources with little or no chemical processing. Many natural dyes are safe, reliable, natural in color, and close to natural substances. Etc. [0003] With the development of the economy and the progress of the society, people's requirements for a healthy life are gradually increasing, making the use of natural pigments to replace artificial pigments has become the development trend of the food and cosmetics industry...

AI Technical Summary

Problems solved by technology

[0005] In the past, there have always been certain limitations in the extraction of pigments from animals and plants. However, at present, with the discovery of a large number of blue pigment-producing microorganisms and the continuous deepening of research on microbial genetics and breeding, various difficulties that have plagued scholars in biology have been solved. However, there are still many unsolved problems that require further research and discovery

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