In March, the world's most advanced Austrian SML Lenzing Co., Ltd. high-speed coextrusion coating line was put into operation in Qingdao. It can produce a wide range of width 4.4m wide waterproof, matte and embossed surface waterproof material, rainproof tarpaulin and 5 layers of composite materials of different materials structure. With a width adjustment system, the narrowest product can produce 2.4 meters wide products.

The production line adopts a standardized unit for modular design, which not only meets the special needs of the market, but also can easily adjust the production route and production process according to the needs of customers. Through the co-extrusion process, the relevant adhesive layer is extruded to combine various monolayer materials in a specific combination, so that the new product has a completely new characteristic. Such as: tension stability, shrinkage stability, good printability, good barrier properties, and so on. The vast majority of coated and laminated products can be produced on this production line by a co-extrusion coating process.

The production line includes co-extrusion units, automatic die units with automatic width adjustment systems, two automatic thickness measurement units consisting of different thickness measurement units, corona treatment units, and fully automated shaftless unwinding with high-speed bonding devices Unit and fully automatic winder, and can be extended at any time to serial coating and laminating production line with on-line sizing, emulsion coating, hot-melt adhesive coating, product surface dust removal, product cold perforation, flame treatment or ozone treatment And other special features.

The main features of the production line include: Each extruder is equipped with a melt pump and a weighing system to ensure the stability and consistency of the melt extrusion when the line speed changes, and that different raw materials are preset A good ratio of feeding compounding accuracy, thus saving raw materials, ensuring consistency of product quality; large automatic turret-type unwinding machine, using shaftless unwinding, direct torque drive, high speed without the need to slow down Fully automatic roll change; semi-automatic double-position unwinding machine with adhesive device for automatic roll change at extreme speed; automatic die with inner cavity width adjustment system and edge thinning optimization system Suitable for thickness measurement system with different thickness, automatic adjustment of die gap and so on.