News

What is the process flow of RPET spunbond non-woven fabric?

2023-08-10  1176

What is the process flow of RPET spunbond non-woven fabric? The main materials of RPET spunbond non-woven fabrics are polyester and polypropylene. The main spunbonded non-woven fabric technologies in the world include Lekofel technology from Germany, STP technology from Italy, and Kobe steel technology from Japan. The current situation, especially with Lefin technology becoming the mainstream technology in the world. Currently, it has developed to the fourth generation of technology. The characteristic is the use of negative pressure ultra-high speed airflow for stretching, and the fibers can be stretched to around 1 denier.


What is the process flow of spunbonded non-woven fabric? The process flow of spunbonded non-woven fabric is as follows:


Polypropylene fiber: polymer (polypropylene+recycled material) - large screw high-temperature melt extrusion - filter - metering pump (quantitative conveying) - spinning (stretching and suction at the spinning inlet) - cooling - airflow traction - mesh forming - upper and lower pressure rollers (pre reinforcement) - rolling mill hot rolling (reinforcement) - winding - inverted fabric cutting - weighing and packaging - finished product warehousing


Polyester: processed polyester chips - high-temperature melt extrusion of large screw stalks - filters - metering pumps (quantitative conveying) - spinning (stretching and suction at the spinning inlet) - cooling - airflow traction - mesh forming - upper and lower pressure rollers (pre reinforcement) - rolling mill hot rolling (reinforcement) - winding - inverted fabric cutting - weighing and packaging - finished product warehousing


The information comes from the internet. If there is any infringement, please inform us to delete it.