The track of a conventional sports arena is usually red or blue. This time, the Olympic Committee broke with routine practices, according to the person in charge of the explanation, in order to form a clearer contrast with the audience seating area, and more attract the attention of the audience in front of the scene and TV. At the same time, "the purple color of the runway is reminiscent of the lavender of Provence." As a color, purple is not uncommon in nature, especially in the field of plants, such as lavender, violet, lilac, bamboo plum, platycodon... Even ripe eggplant. But it was once so difficult for humans to obtain purple pigments or dyes that few countries used purple as the color of their national flags.
The earliest use of purple pigments by humans dates back to the Neolithic Age. Around 20,000 years ago, in and around Pechmel, France, people left the Outlines of their own hands with manganese minerals. However, in nature, there are few types of ores that can form a stable purple color. Although anthocyanins in plants can also appear purple, these natural pigments will change color with the change of pH, resulting in its practical application is not stable enough to be used as a dye for clothing fibers.
Jiangxi bauhinia pigment
Founded in June 2005, it was renamed Jiangxi Bauhinia Pigment Chemical Co., LTD., a joint venture with Shanghai Jiehong Pigments in 2010. It is a production base of organic pigments based on permanent purple RL. The company is located in Yongxin County, Jiangxi Province, 66km away from Ganyuan-Guangdong Expressway, 67km away from Jinggangshan Airport and 81km away from Beijing-Kowloon Railway Ji 'an Station. The company is located in the green mountains, beautiful environment, pleasant climate. With a total investment of 50 million yuan, the company covers an area of 33,000 square meters, a construction area of 12880 square meters, and a green area of 10,000 square meters, which is a modern garden-type enterprise. The company's main product permanent violet (C.I.23# violet) is an organic pigment, mainly used in paint, ink, coatings, plastics, rubber and other fields, with broad prospects in the world. The company has established a technical testing center with strong technical talent force, and maintains close cooperation with many research institutes such as Beijing University of Chemical Technology and Nanchang University, and is equipped with gas chromatography, liquid chromatography, computer color meter, particle size meter, color card machine, dispersion machine and other testing equipment. Product production from raw materials into the factory to intermediate product control to product delivery and after-sales service, layers of control, comprehensive quality management, to ensure product quality, technology center always adhere to the scientific and rigorous innovation attitude, continuous production optimization, product quality innovation, through the joint efforts with various cooperative units and brother companies, We have developed the production technology of water-soluble permanent violet products, and the breakthrough and application of this technology have filled the gap in this field in China.
