Acupuncture law in the non-woven fabric production line in the proportion of about 28% to 30%, at present the domestic production capacity of nearly 300,000 tons. From December 2009 held in Changshu, Jiangsu Province, the sixth national acupuncture nonwoven production technology and application exchange, the reporter did feel the prospect of booming industry. Insiders say that in addition to being used for routine air filtration and dust control, new areas of application of acupuncture nonwovens are being expanded, with transportation, industrial wiping ... virtually any combination of nonwovens processes or combinations of types is practically possible , Which makes its characteristics ideally suited for special, more demanding applications. Process Composite Applications Polyester Spunbond Needle Punched Nonwoven High production speed, low consumption of raw materials, energy saving, equipment, small footprint, compact structure, in recent years, most of the gradual replacement of staple fiber geotextile trend. The reporter also learned from the application department, polyester spunbond needling geotextile with high strength and reinforcement, isolation, filtration, drainage and seepage control functions can be widely used in water conservancy construction, road construction, building waterproofing facilities, is a The user recognized the better geosynthetics. Needle punched nonwovens filter material for most products, innovative spunbond acupuncture technology has been put on the good use of field: Spunbond acupuncture technology thicker, less density, good air permeability and dust holding capacity. In response to the user feedback spunbond acupuncture filtering accuracy is not enough, in recent years, manufacturers actively through the use of reduced single fiber fineness, the use of heterosexual fibers, the development of special needles and other methods to effectively improve product filtering accuracy. In order to improve the competitiveness of the product, Foshan City, Guangdong Sri Lankan Special Materials Co., Ltd. and other companies from many aspects, the use of recycled bottle as raw material to reduce production costs; improve drafting technology to reduce energy consumption; give full play to advantages of spunbond technology , Improve product performance. Nanjing Jihua 3521 Special Equipment Co., Ltd. has developed a acupuncture spunlace composite processing of high temperature filter material. According to reports, the ordinary needle filter material due to the needle on the filter material in the larger damage to the fabric (needle damage to the fiber is generally up to 25%), the media is significantly stronger than the latitudinal strength of the filter media; simple spunlace Weaving process of heavy products there is the existence of high moisture content, not easy to dry the shortcomings of processing difficult. Jihua 3521 using acupuncture spunlace composite process, that is, after the pre-pre-pricked spunlace processing, can achieve the purpose of not damaging the fabric, spunlace damage to the fiber is generally 5%, significantly increased the latitude and longitude to the strong, so that the two The intensity is close. The acupuncture spunlace composite technology also broke through the bottleneck restriction of the mechanical strength of the filter bag caused by a large number of cut filaments in the needle punching composite process, and has certain improvements in filtration efficiency and filtration precision. New high-grade composite fiber Currently, high-performance fiber used for high temperature filtration products are mainly glass fiber, Nomex fiber, P84 fiber, PPS fiber, PETT fiber. Due to the characteristics of the first few kinds of fibers, the scope of application has been affected to some extent. Glass fiber is more brittle, Nomex fiber is poor in oxidation resistance, P84 fiber is easily hydrolyzed and aged, and PPS fiber is used at lower temperature. The PETT fiber chemical corrosion resistance, high temperature, can be used in a variety of harsh environments and achieve better results, but also longer than other fiber filter media have a longer service life. China has formed a 100% PETT filter industrialized production, Xiamen three-dimensional wire Environmental Protection Co., Ltd. developed acupuncture filter felt products applied for a patent. Although PETT has good temperature and chemical resistance, it is expensive and has no advantage over filter media made from other fibers. To this end, some enterprises in which to join the right amount of ultra-fine glass fiber, neither affect the temperature resistance, but also improve filter efficiency and reduce the rate of material prices, but also expand the scope of application and extend the service life. In this exchange meeting, the reporter contacted a number of PETT production enterprises, they are very optimistic about the application of this fiber, how to expand sales is the key now. The new fiber composite needle punched non-woven fabric leather fabric in line with the artificial leather high physical, ecological, functional development trend. In the past two years, the application of ultrafine fiber materials has greatly promoted the market of synthetic leather products to make them waterproof, moisture-permeable, antibacterial and deodorant properties, and the functionality of tempered fibers and surface-modified fibers Leather fabric is more into the high-end market of synthetic leather.