Dyeing method of fabric with color matched natural blue pigment Indigoidine

Abstract

Relating to the field of light chemical industry, the invention discloses a dyeing method of a fabric with a color matched natural blue pigment Indigoidine. The method is characterized by: mixing thesolid powder of natural blue pigment Indigoidine, monascus red pigment and / or monascus yellow pigment for color matching; then adding the color matched pigment and praseodymium chloride or lanthanum trioxide or sodium sulfonate with a mass percent of 0.1-5g / L into water, adjusting the pH value to 2.5-6.5, adding the fabric into the dyeing solution, performing heating to 50-95DEG C, and conductingwashing and drying, thus finishing dyeing of the fabric. The natural pigment fermentation process does not produce toxin, and in order to achieve industrial production, the strains need to be applicable to liquid fermentation, thus solving the shortcomings of plant dyes. In addition, besides bright color, some microbial dyes also have certain antibacterial effect, thereby indicating that part of microbial dyes also have potential application value in functional finishing of fabrics.

Description

technical field [0001] The invention relates to the field of light chemical industry, in particular to a method for dyeing fabrics with natural blue pigment Indigoidine after color matching. Background technique [0002] Natural dyes are dyes obtained from plant, animal or mineral sources with little or no chemical processing. Natural dyes have good biodegradability and environmental compatibility, and are suitable for the development of high value-added functional and environmentally friendly textiles. At present, environmentally friendly fabrics dyed with natural dyes are quite popular in domestic and foreign markets. Abroad, Japan, South Korea, North Korea, India, Britain, the United States and other countries use natural fiber fabrics printed and dyed with plant dyes as a fashion, and these countries have also been engaged in the research and development of natural dye dyeing. [0003] Now natural dyes are mainly dyes extracted from plants, and plant dyes have some una...

AI Technical Summary

Problems solved by technology

Developed countries in Europe and the United States have already banned brilliant blue and used phycocyanin as a blue pigment for food additives. my country is still using chemically synthesized brilliant blue as a food coloring. Phycocyanin is more than 1,000 yuan per kilogram, and brilliant blue is less than 100 yuan per kilogram; Secondly, phycocyanin is a kind of protein, which cannot adapt to the process conditions such as temperature during printing and dyeing