Interpretation Of Energy Saving And Water-Saving Clothing Biological Finishing Technology And Its Industrialization

< p > because at present, the conventional desizing enzyme washing temperature is between 50~55 C, which consumes a lot of energy and produces a lot of waste water. Therefore, energy saving, water consumption reduction and pollution reduction have become the key to the survival and development of garment < a href= "http://www.91se91.com/news/index_c.asp" > washing industry < /a >. < /p >
Less than p ago, the "energy saving and water-saving garment finishing technology and industrialization" project, which was completed by Hebei University Of Science and Technology, Shijiazhuang mysdar biochemical industry Co., Ltd., Changzhou Tong Kai Garments Co., Ltd. and Yantai Fuya garment washing Co., Ltd., won the "textile light" science and technology two award in 2013, providing a new weapon for energy saving and emission reduction in China's garment washing industry. < /p >
< p > < strong > the malady is not changed, it is difficult to say environmental protection < /strong > < /p >
< p > desizing and floating color treatment are the necessary parts of denim production. < a href= "http://www.91se91.com/news/index_c.asp" > denim dress > /a > dyed Indigo is the main color, Indigo is a kind of non solid color. Indigo can not be directly dissolved in water, nor can it be directly dyed with cotton yarn. This determines that indigo can not dye up to one hundred percent dye uptake during the dyeing process. It will cause a lot of floating color. This part of floating color is washed out of several clear water cylinders before the slurry tank in the slurry dyeing process, but there are still many residues on the yarn, so there is still a lot of floating color in the finished cloth after weaving and finishing. Besides indigo, sulphur dyes are also available, as well as floating colors. Therefore, washing off the floating color of denim clothing is a necessary job. < /p >
< p > according to Yao Jiming, general manager of the project leader of Shijiazhuang mysda biochemical industry Co., Ltd., cellulase mainly acts on microfibrils on fabric, so as to achieve the purpose of finishing and refurbishing fabrics, and avoid hair and ball entangling. There are many kinds of cellulase, but not all cellulases can remove fibrils. Currently, most of the enzyme preparations developed in China are cellulase. Because of the different enzymes used, the pH value and temperature are different when processing, but the reaction temperature of desizing enzyme is mostly higher than 50. < /p >
< p > according to statistics, the average cost of manufacturing a < a href= "http://www.91se91.com/news/index_c.asp" > jeans > /a > is 42 liters of water. If it is a single piece of plate, re color, first bleach and remove color, almost 2.5 tons of water per cylinder. The three processes of bleaching, coloring and fixing are almost 6 cylinders of water, that is, 15 tons of water, which is the least amount of water used by skilled craftsmanship. If you are not proficient, it is possible to increase the water consumption by 50% hours, at least 6~10 hours. < /p >
< p > < strong > improving structure determination process < /strong > < /p >
< p > "project group" through studying the interaction between enzyme and chemicals, improve the stability of enzyme molecular structure, reduce the foaming property of enzyme, reduce the temperature of enzyme action, enhance the effect and expand the pH range of enzymatic hydrolysis. A desizing enzyme and cellulase suitable for low temperature and water-saving processing of clothing were developed. By studying the effects of various chemical auxiliaries, desizing enzymes on the desizing effect, the effect of dyes on Cellulase on the fabric, the effect of temperature, bath ratio, time, pH and cleaning times, we successfully developed the biological finishing water washing process, realized the energy saving and water saving in the washing process, and achieved the international advanced level. Yao Jiming said. < /p >
< p > the project has been authorized by the national invention patent, and has published 10 papers in the core journals of China. The project has solved a series of key technical problems in the process of garment washing. It has reduced the temperature of desizing and enzyme washing, shortened the processing time, reduced the frequency of washing after desizing and enzyme washing, and realized the water saving and electricity saving in the whole biological finishing stage. The high efficiency desizing enzyme, high activity cellulase and low temperature cellulase developed by the project have been industrialized, which has promoted the popularization and application of energy saving processing technology, and promoted the energy saving and emission reduction and technological progress of the garment washing industry. < /p >
< p > < strong > returning home to start a business together with the alma mater < /strong > /p >
< p > Yao Jiming worked at Hebei University Of Science and Technology. In 1995, he went to University of Leeds to study for doctorate degree. He also studied the synthesis of hydrogen peroxide activators, biochemistry and the development and application of new enzymes in England, the United States and Canada. He said: "it is a great gratifying thing to maintain business relations with your alma mater after starting your own business. You should take advantage of the advanced knowledge learned abroad, and research and develop products that others do not have." When Yao Jiming returned from Canada to start his own business, he made such a development goal for himself. In 2004, Yao Jiming returned to China and founded the Shijiazhuang science and Technology Co., Ltd. in the hi tech park. < /p >
< p > "I am very glad to have the project cooperation with Hebei University Of Science and Technology. I also taught at Hebei University Of Science and Technology for many years before I went abroad." Yao Jiming said. In view of the project of water-saving clothing biological finishing technology and industrialization, the universities, washing plants and garment enterprises throughout the whole production chain are composed of Hebei University Of Science and Technology, Shijiazhuang Midea Biochemical Co., Ltd., Changzhou Tong Kai Garments Co., Ltd. and Yantai Fuya garment washing Co., Ltd., relying on the deferment enzyme, cellulase and cellulase production technology of Hebei University Of Science and Technology and Shijiazhuang shimida Biological Chemical Co., Ltd., the pilot test is carried out in Yantai Fuya garment washing Co. Ltd. and Changzhou Tong Kai Garments Co., Ltd., and the test data are fed back to the upstream. After repeated debugging, the best efficient, high activity and low temperature biases are screened out. < /p >
< p > it is understood that high efficient desizing enzymes, high activity cellulase and low temperature cellulase have been commercialization in water saving clothing biological finishing technology and industrialization. These independent innovation products not only replace the traditional process based on rough chemicals, reduce environmental pollution, achieve energy saving and water saving, but also reduce processing costs and improve product quality, which are favored by textile and garment processing enterprises. At present, the products have been promoted nationwide. < /p >