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There are many types of nonwoven fabrics, one of which is called a spunbonded nonwoven fabric. So how do you distinguish spunbond nonwovens? The spunbonded nonwoven fabric has a diamond-shaped rolling point, high strength, high temperature resistance (long-term use in 150 °C environment), aging resistance, UV resistance, high elongation, stability and gas permeability, and resistance. Corrosion, sound insulation, anti-mite, non-toxic and so on.
Technical type of spunbond nonwoven
The world's spunbond nonwoven fabrics mainly include Leccofel technology from Leifen, Germany, STP technology from Italy, and Kobe steel technology from Japan. Currently, Reifen technology has become the mainstream technology in the world. The fourth generation technology has been developed. It is characterized by the use of negative pressure super-high-speed air drafting, and the fiber can be stretched to about 1 denier. Many companies in China have already carried out imitation. Due to the fact that many of the core technologies have not been solved or mastered, it will take time for domestic equipment manufacturers to reach the technical level of Reifen.
Spunbond nonwoven process
Polymer (polypropylene + return material) - high-temperature melt extrusion of large snails - filter - metering pump (quantitative delivery) - spinning (spinning inlet up and down stretching) - cooling - airflow Traction - mesh curtain netting - upper and lower pressure roller (pre-reinforcement) - hot rolling mill (reinforcement) - winding - inverted cloth cutting - weighing packaging - finished product storage
Dongyang Laichi Environmental Protection Technology Co., Ltd. now has an annual production capacity of more than 40 million square meters of elastic nonwoven production line, SSS nonwoven production line, SMS nonwoven production line and a series of flexible deep processing equipment, which is professional and trustworthy. Textile manufacturers.
Produced spunbond nonwoven fabric: high temperature resistance, high temperature resistance (polypropylene can be used for a long time in 150 ° C environment, polyester can be used for a long time in 260 ° C environment), aging resistance, UV resistance, high elongation, stability Good and breathable, corrosion resistant, soundproof, anti-mite, non-toxic.
"Lai Chi" nonwoven fabric manufacturers around you, please feel free to ask!