阀口袋，俗称糊底袋，为目前国际流行包装袋，从顶部或底部阀口进料，采用专门灌装设备，灌装物料后装成方体，堆包整齐，美观，属于环保袋。阀口袋主要用于包装食用粉、化工粉末、化肥、合成材料、炸药、粮食、盐、矿物质等粉状或粒状的固体物料及柔性物品。特别适合出口企业使用，能提高产品的包装档次。
The valve bag, commonly known as the paste bottom bag, is the current international popular packaging bag. The material is fed from the top or bottom valve port. It uses special filling equipment. After filling the material, it is packed into a square, stacked neatly and beautifully. It is an environmentally friendly bag. Valve pockets are mainly used for packaging powdered or granular solid materials and flexible articles such as edible powder, chemical powder, fertilizer, synthetic materials, explosives, grain, salt, minerals, etc. It is especially suitable for export enterprises and can improve the packaging grade of products.