Valve bags, commonly known as bottom-sealed bags, come in two types: internal-valve and external-valve. They are currently the most popular packaging bags internationally. Material is fed through a valve at the top or bottom using specialized filling equipment. Once filled, the bags form a cube shape, allowing for neat and aesthetically pleasing stacking. They are classified as eco-friendly bags. Valve bags are primarily used for packaging powdered or granular materials—such as food powders, chemical powders, fertilizers, synthetic materials, explosives, grains, salt, and minerals—as well as flexible items. They are particularly suitable for export companies, as they enhance the packaging quality of products.
