The bags are called “valve bags” because they have a small valve or opening in the corner of the bag that allows the product to be easily filled and dispensed. The valve is typically made of a heat-sealed polyethylene film and can be opened by cutting or tearing it off.
Block bottom valve bags offer several advantages over other types of packaging. They are highly resistant to moisture, dust, and other contaminants, which helps to protect the contents of the bag from damage. They also provide excellent stability, making them ideal for stacking and transportation.
In addition, block bottom valve bags are environmentally friendly, as they are made from renewable resources and are fully recyclable. They are also lightweight and require less storage space than other types of packaging.
Overall, block bottom valve bags are a popular and versatile packaging solution that can be used for a wide range of products.
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