A non-woven needle belongs to manufacturing of non-woven fabrics, polyester, polypropylene as raw material, after proper treatment from hot acupuncture. According to the process, with different materials, made hundreds of goods.
Acupuncture is a kind of dry non-woven non-woven cloth, is the short fibers by opening, carding, Pu fiber network, then the fiber mesh reinforcement into cloth by a needle, needle hook, fibre mesh hook with repeated puncture, fiber reinforcement, formation of non-woven cloth, non-woven warp weft not divided into cloth. Fiber clutter, radial zonal difference performance. Typical products: synthetic leather fabric, nonwoven fabric etc..
Technological process：
The first step is to produce polyester, polypropylene raw materials, through carding, combing, pre acupuncture, acupuncture and. Center with mesh dissection, the double nucleus, airlaid acupuncture combined into cloth, then press cloth has a three-dimensional structure by heat setting,
The second step after singeing, on the surface of the oil by chemical agent, make cloth smooth appearance, uniform pore distribution, from the surface of the product density, good surface finish and two air filter, that can be used in the frame on the compressor, high pressure filtration precision up to 4 microns, can provide two kinds of raw materials of polypropylene and polyester according to user needs.
The third step proved to have better performance in non-woven filter cloth and frame filter: slime water treatment in coal preparation plant, wastewater treatment plant. In the brewery, printing and dyeing plant wastewater treatment. As with other specifications of cloth will appear cake pressure is not dry, and it is difficult to fall off, with non-woven cloth, filter cake reached 10kg-12kg in filter pressure is quite dry, and the filter cake will automatically open the box off. Users of nonwoven fabric cloth in the selection, mainly based on the permeability, non-woven cloth filter precision and elongation to consider different thickness and quality of the products, please point parameters of polyester felt and polypropylene needled felt, specifications can be