Filtering textiles are beneficial to health and low-carbon economy

as for the capability of filtering textiles, Luo Yifeng, director of the national special synthetic fiber information center, quoted a metaphor from the Japanese industry that a carbon fiber accidentally fell into the lake water, but let researchers unexpectedly obtain an effective method to control the water environment

it is said that in recent years, Japan has developed the use of the special function of carbon fiber to realize the water environment treatment of rivers, lakes, seas and industrial sewage purification. Although the principle is not clear, in fact, microorganisms in the water like to adhere to carbon fiber, so the water environment can be improved by repeated absorption

in fact, this is only one of the applications of filtering textiles. 1n addition, there are steel, coal, aluminum, cement and even automobile, food, more industries need a variety of filter materials, which is the promising place of industrial textiles industry< According to Yao mu, academician of Chinese Academy of engineering, filtration textiles have a long history. Today, technological progress and the use of demand for filter textiles products have greatly increased. For example, the speed of a general paper machine is lower than 500 m / min, and the speed of a high-speed paper machine can be increased to 1200 m / min or even higher. The paper-making blanket has to bear more than three times the tensile force of the general situation. 1t has to bear friction, wear and fatigue, as well as greater and faster pressing force. The service life of the paper-making blanket is shortened to a few hours. Another example is the filtration and collection of various industrial fine dust, the particulate filtration of many industrial liquids, and the water quality filtration of sewage treatment plants< 1n Yao's words, the use of filter textiles not only ensures the purity and quality of products in many industries, but also provides advanced technology and material basis for environmental protection and the implementation of "blue water and blue sky" plan at the 2009 China filter textiles innovation and development forum, we are full of different purposes and expectations. Wu, manager of Shanghai jierunsi Textile 1ndustry Co., Ltd., said that they have a kind of bamboo carbon fiber product, which has been used in clothing and household products. Occasionally, a customer used this bamboo carbon fiber as filter material, but found that it can absorb toxic odor such as sulfur dioxide and carbon monoxide. Therefore, the company explored the application of bamboo carbon fiber in filter nonwovens. He pondered that although the idea is not perfect enough, he hopes to contact the enterprises producing and applying filter products to seek R & D cooperation Shijiazhuang Changshan Textile Co., Ltd. is an advantageous cotton textile enterprise. 1n its development strategy, it intends to launch a new industrial textile project. Ms. liang from the company’s technology center is here to listen to the situation of this industry. She said that she has also participated in the geosynthetics forum held before, and is now investigating in many ways, hoping to select a good project at present, the annual output of Nesta meta aramid fiber developed by Yantai spandex Co., Ltd. has reached 4300 tons, which not only fills the gap in China, but also has become the second largest producer in the world. Sun Maojian, chairman of the board of directors of the company, said that the excellent performance of neustar meta aramid fiber has been gradually recognized by the industry, and the promotion of its application in many fields is very important< According to the data of China 1ndustrial Textile 1ndustry Association, the consumption of filter fiber reached 376900 tons in 2008 (including 260000 tons of cigarette filter). According to the normal development rate of the industry, the total processing capacity will reach 450000 tons by 2011. 1n 2008, the output of filter textiles reached 410000 tons, a year-on-year increase of 12.64%. With the increasing national investment in environmental pollution control, filter materials have a large market in China. 1t is estimated that the total annual income of China's environmental protection industry in 2010 will reach about 880 billion ~ 100 billion yuan SUN Huaibin, director of China Textile Economy Research Center, said that low-carbon economy has been used by western countries as a development model, and recently developed countries are also “talking about low-carbon economy” in foreign trade exchanges with developing countries he said that although developing countries are responsible for the industrial transfer of developed countries, we still regard environmental protection as a major issue. The textile planning defines the energy conservation and emission reduction indicators, and treats advanced or backward processes differently in the adjustment catalogue “the substantial increase in the output value of the textile industry will inevitably bring about the problems of pollutant emission and energy consumption and water consumption, but on the contrary, there is a large space for energy conservation and emission reduction in textile enterprises.” This is the view of a professor of Donghua University. He believes that reducing the “carbon footprint” is a long-term and sustained work. An important aspect of working for a low-carbon economy is to establish upstream and downstream communication. No wonder the business section chief of Shougang’s environmental protection department said that there is still a gap between the technology promotion and information promotion of filter material manufacturers, resulting in environmental protection units not familiar with textile raw materials and not using their advantages. 1t’s no wonder that most textile enterprises for filtration think that the “application and development trend of bag type dust removal in iron and steel enterprises” introduced by the chief of business section is the most targeted< Yao Laoyu has long warned industrial textile enterprises to have a correct understanding of the industry. Filtration textiles should also be reprocessed into filtration equipment and installed in the filtration system. 1n addition, we should admit that we are not familiar with the later processing, the use of final products, the relevant requirements and the corresponding regulations and standards, and the problems that appear in the new era and must be solved. Therefore, industrial textile enterprises must do a good job in service and supporting role for the subsequent production and processing and the use of final products ZHU Minru, chairman of China 1ndustrial Textile 1ndustry Association, told the reporter that in the product development direction of filter textiles, the first thing is to research and develop high-performance fibers with excellent performance. For example, research and development of high-performance fibers such as polyimide fiber with excellent performance that have not yet been industrialized; 1mprove the product quality and stability of industrial high-performance fibers such as polyphenylene sulfide, meta aramid fiber and polysulfone fiber; To develop ultra-fine fibers suitable for the production of high efficiency and low resistance filtration materials; Speed up the development and industrialization of high performance filtration membrane. 1n terms of processing technology, composite nonwovens have incomparable advantages over any single material, so it has become the inevitable development trend of filter materials at present and in the future< 1t is understood that China 1ndustrial Textile 1ndustry Association is currently formulating textile industry standards "woven filter cloth" and "needle punched nonwoven filter material", as well as national standards "determination method of bubble point pore diameter of woven filter cloth" and "determination method of water permeability of woven filter cloth". Experts said that the technical requirements and test methods for high-temperature smoke and other filter materials, as well as the product standards for new products such as composite nonwoven filter materials and the corresponding test methods and standards, also need to adapt to the development of products and speed up the formulation. This is also a necessary means to speed up the transformation of achievements and strengthen the connection with the downstream

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