Valve bag, commonly known as paste bottom bag, is an internationally popular packaging bag. Feed from the top or bottom valve, using special filling equipment. After filling the materials, assemble the cubes and stack them neatly and beautifully. It is an eco-friendly bag. The valve pocket has the characteristics of improving packaging efficiency, convenient transportation, strong firmness and low breakage rate.
Valve pockets can be divided into: pp valve pockets, PE valve pockets, paper-plastic composite valve pockets, kraft paper valve pockets, and multi-layer kraft paper valve pockets. The PP valve bag is made of the upper valve port or the lower valve port of the polypropylene woven cloth, which can improve the packaging efficiency compared with ordinary PP woven bags. The valve bag is a polyethylene woven cloth valve port; the paper-plastic composite valve bag is made of a plastic woven bag (referred to as cloth) as the base material, and is formed by the casting method (the cloth/film composite is two-in-one, and the cloth/film/paper composite is three-in-one. The material of valve pocket kraft paper is mainly kraft paper, of which kraft paper is divided into imported kraft paper and domestic kraft paper.
Valve pockets can be divided into: upper port valve pockets, lower port valve pockets, and upper and lower port valve pockets.
Valve pockets are mainly used to pack powdered or granular solid materials and flexible items, such as edible powder, chemical powder, fertilizer, synthetic material, explosives, grain, salt, minerals, etc. It is especially suitable for export enterprises and can improve the packaging grade of products.
Post time: Sep-14-2022