Valve bags are filled through an opening located in the top corner of the bag. Product is pumped or forced into the bag via air pressure, impeller, or auger. When the bag is discharged from the packing equipment, forces generated by the product inside the bag allow the valve opening to self-seal.
Multi-wall paper bag is a common industrial packaging style designed to package a wide variety of dry flowable products. Valve bags are packed on equipment that deposits material into the bag via a horizontal filling spout. When the bag is discharged from the packing equipment forces generated by the product inside the bag allow the valve opening to self-seal.
|Material structure||Multi layer kraft paper/Kraft paper + PE layer|
|Printing||Offset Printing (economical)|
|Top||Inner valve port or Outer valve port|
Lansu Packaging creates paper bags for building industries and needs. We have extensive experience with paper bags for retail distribution, industrial use, shipping packaging, etc. To ensure the durability and consistency of our products, we only use the highest quality materials. Each bag is constructed of 100% kraft paper and made in the CHINA.