Spunbond Nonwoven Process and Technology Types

Spunbonded nonwoven fabric, the main material is polyester and polypropylene, high strength, good high temperature resistance

process flow

Polypropylene: Polymer (polypropylene + return material) - large screw high-temperature melt extrusion - filter - metering pump (quantitative delivery) - spinning (spinning entrance up and down stretching and suction) - cooling - Airflow traction—net curtain forming—upper and lower pressing rolls (pre-reinforcement)—rolling mill hot rolling (reinforcement)—winding—reverse fabric slitting—weighing and packaging—finished product storage

Polyester: processed polyester chips - large screw stalk high temperature melt extrusion - filter - metering pump (quantitative delivery) - spinning (spinning entrance stretched up and down suction) - cooling - air traction ——Mesh curtain forming——Upper and lower pressing rolls (pre-reinforcement)——Rolling mill hot rolling (reinforcement)——Coiling——Reversing and slitting——Weighing and packaging——Product storage

technology type

The world's spun-bonded non-woven fabric technologies mainly include Laikefer technology from Reifen, Germany, STP technology from Italy, and Kobe Steel technology from Japan. In the current situation, especially the Refine technology has become the mainstream technology in the world. Has developed to the fourth generation technology. It is characterized by negative pressure ultra-high-speed air drafting, and the fiber can be stretched to about 1 denier. Many domestic companies have imitated it. Since many cutting-edge problems in its core technology have not been solved or mastered, it will take time for domestic equipment manufacturing companies to reach the level of Reifen technology.

Zhejiang Hengyao New Material Co., Ltd. is a professional Nonwoven Fabric Manufacturers. If you need it, you can click the official website to contact us. We are willing to answer more information for you.