PE valve bag

Currently, valve bags are commonly used to package powdered materials in quantities ranging from 20 kg to 50 kg. Traditionally, these valve bags were made exclusively from paper; however, with the emergence of new materials, increasingly stringent requirements have been imposed on packaging solutions. Conventional paper valve bags suffer from limited strength, monotonous performance characteristics, short shelf lives, and an unattractive appearance, making them inadequate for meeting the moisture‑proofing and sealing demands of modern materials. To address these shortcomings, a new type of valve bag for powdered materials has been developed, offering superior sealing, enhanced mechanical strength, broad applicability, and extended shelf life—making it well suited for packaging a wide variety of powdered substances.

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Valve bag

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PE valve bag

　　Currently, valve bags are widely used for packaging powdered materials ranging from 20 kg to 50 kg. Traditionally, these valve bags were made exclusively from paper; however, with the continuous emergence of new materials, increasingly stringent requirements have been placed on valve bags used for packaging. Conventional paper valve bags, limited in strength, offering only single‑purpose performance, having a short shelf life, and lacking aesthetic appeal, can no longer adequately meet the moisture‑proofing and sealing demands of modern materials.

　　Valve bags for powder materials address the shortcomings of conventional paper valve bags, offering a solution that delivers excellent sealing, high strength, broad applicability, and an extended shelf life, making it suitable for packaging a wide range of powdered substances.

Aluminum-plastic composite valve pouch

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PE valve bag

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