Since the discovery of aniline by the Russian chemist Qinin and the French chemist Hoffmann from the reduction of nitrobenzene in the 1840s, synthetic dyes have gradually entered people’s lives, and their clothes have become colorful. However, with the development of the times, people gradually realized that although synthetic dyes can give “new life” to clothes, they do not meet today’s requirements for ecological and environmental protection. Therefore, some people began to try to restore fabric dyeing to the original dyeing by plants, etc. state. Recently, a discovery by a British designer has included bacteria in the “environmental protection army” of dyeing.
According to British media reports, British textile designer Natsai Chieza discovered bacteria that can create color and applied it to silk fabric dyeing. Natsai Chieza extracted soil samples from around the roots of tarragon, oxgrass, sage and other herbs, isolated bacteria such as Streptomyces, and cultured them in petri dishes. She discovered that the cells of these soil bacteria themselves have colors, including dark blue, indigo, orange and bright red, and can penetrate natural pigments of various colors. She put the silk fabric into the cultured soil bacteria to color it, and finally , these bacteria create unique patterns. It is understood that Natsai Chieza will also consider cultivating genetically modified bacteria to create other colors as a next step.
Liu Jinqiang, a professor at the School of Materials and Textile of Zhejiang Sci-Tech University, said that bacterial dyeing is a type of microbial dyeing. Before people used synthetic dyes, microorganisms were used for staining, but now they are rarely used. Microbial staining is basically only done when observing organisms through a microscope. However, there are many standards that need to be followed in dyeing, such as color fastness and brightness. Therefore, Natsai Chieza’s research needs to continue testing to determine whether it is successful.
“Before the emergence of synthetic dyes, people used natural dyes, and the most common ones were plant dyes.” Liu Jinqiang said, “For example, trees and seeds contain pigments that can be dyed into textiles.” The familiar one is Wuzhen local The blue printed cloths worn by women, whether they have white flowers on a blue background or blue flowers on a white background, are all “masterpieces” of a plant called bluegrass.
Liu Jinqiang said that although plant dyes also have their advantages, most plant dyes still cannot be promoted on a large scale. “First, because plant dyes themselves are very scarce, and their extracts are even more rare, industrial production is difficult. Second, plant dyes have incomplete chromatography, and color fastness and brightness cannot be guaranteed.”
Extended reading: https://www.tpu-ptfe.com/post/9347.html
Extended reading:https://www.alltextile.cn/product/product-46-125.html
Extended reading:https://www.china-fire-retardant.com/post/9393.html
Extended reading:https://www.china-fire-retardant.com/post /9411.html
Extended reading: https: //www.yingjietex.com/product/Full-dull-Nylon-Taslon-Oxford-Breathable-Fabric.htm
