Square Bottom Valve Pocket Application

Square bottom valve bag: commonly known as: paste bottom bag, is a kind of packaging bag born under the guidance of the idea of improving packaging efficiency and convenient transportation. The overall appearance of the bag is square, which is very suitable for stacking transportation; the valve port at the bottom is convenient for filling materials, and the sealing is simple and easy. The new environmentally friendly packaging suitable for canning equipment can be divided into: paper-plastic composite valve bag or multi-layer paper valve bag. For the convenience of filling, the bag body can be perforated to facilitate the discharge of gas and prevent the bag from bursting during filling. A layer of plastic film can be added in the middle of the paper to package products that need moisture-proof.