Strong Pasted Valve Bags for Industrial Applications

A pasted valve bag (or self-closing valve bag) is a specialized industrial paper sack designed for clean, efficient, and dust-free packaging of dry, powdery, or granular products. Its defining feature is a pre-formed, glued paper sleeve (the "valve") built into one corner of the bag, through which the product is filled. After filling, the bag's own contents automatically close and seal the valve without additional sewing, gluing, or stitching.   Primary Advantages (This design solves major issues in bulk powder handling):  Dust-Free Operation: The completely enclosed filling process minimizes dust emissions, protecting workers and the environment. This is a key advantage over open-mouth bags.  High-Speed, Automated Filling: Enables extremely fast filling rates on automated packaging lines, crucial for high-volume industries.  Excellent Moisture & Contamination Barrier: When combined with an inner PE liner, it provides superior protection against humidity. This is often specified…

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