What is the processing procedure for needle punched non-woven fabrics?

Update:09 Oct 2021
It is made of polyester and polypropylene raw materials and is carded, combed, pre-needled, and mainly needled. The center is interlayered with mesh cloth, and then through double nucleation, air-laid and needle-punched composite cloth, the post-press filter cloth has a three-dimensional structure. After heat setting and singeing, the surface is treated with a chemical oil agent to make the filter cloth The surface is smooth, and the micropores are evenly distributed. From the surface, the product has good density, smooth and air-permeable surfaces on both sides. It is proved that the filter on the plate and frame compressor can use high-strength pressure and the filtration accuracy is up to 4 microns. Need to provide polypropylene and polyester two kinds of raw materials. Practice has proved that non-woven filter cloth has better performance in plate and frame filter press: for example, slime treatment in coal preparation plants and wastewater treatment in iron and steel plants. In the brewery, printing and dyeing plant wastewater treatment. If the filter cloth of other specifications is used, the filter cake will not be dry and difficult to fall off. After using the non-woven filter cloth, the filter cake is quite dry when the filter pressure reaches 10kg-12kg, and the filter cake is opened when the filter is framed. It will fall off automatically. When users choose non-woven filter cloth, they mainly consider non-woven filter cloths of different thickness and quality according to air permeability, filtration accuracy, elongation, etc. Please click polyester needled felt and polypropylene needled felt for product parameters. The specifications and varieties are all Can be formulated.

The series of needle punched non-woven fabrics are formed through fine carding, multiple precision needle punching or proper hot rolling. On the basis of introducing two high-precision acupuncture production lines at home and abroad, high-quality fibers are selected. Through the coordination of different production processes and the combination of different materials, hundreds of different products are circulating on the market, including: geotextile, geomembrane, velvet, speaker blanket, electric blanket cotton, embroidered cotton, clothing cotton, Christmas crafts , Human leather base cloth, special cloth for filter material.