Ultrasonic Valve Woven Bag
Ultrasonic valve woven bags are a type of valve bag featuring an external valve opening that is sealed using ultrasonic welding technology, providing superior moisture resistance. These bags are typically made from polypropylene (PP) or polyethylene (PE) woven fabric as the base material and produced through extrusion lamination. They can also be manufactured with a plastic film layer laminated between paper layers to further enhance moisture protection.
They are widely used for packaging chemical raw materials, fertilizers, metal powders, and similar materials, effectively reducing explosion risks associated with traditional heat sealing processes. Ultrasonic valve woven bags are also suitable for packaging tile adhesive powder, bonding agents, and other construction materials, ensuring reliable sealing quality and high production efficiency.
Key Advantages
High Packaging Efficiency
Ultrasonic sealing is fast and requires no preheating. Sealing can be completed within one second, and no heating elements are needed, reducing energy consumption by approximately 40% compared to conventional methods. The process uses no chemical adhesives, meeting green and environmental standards while lowering production costs.
Safe & Easy Operation
The system adopts fully automatic microcomputer control with high sensitivity and intelligent recognition capability. Optional automatic feeding, precise positioning, and intelligent pressure adjustment systems significantly reduce manual intervention and improve overall efficiency.
Excellent Sealing Performance
The welding strength is close to the base material strength, ensuring excellent airtightness and watertightness. This effectively prevents leakage and moisture ingress, helping to extend the shelf life of packaged materials.
Wide Application Compatibility
Suitable for plastic films, woven bags, and paper-plastic composite bags. It can handle different bag sizes and materials, producing smooth, clean seals without burrs or curling, resulting in a neat and professional appearance.
