The quality control of Douai is conducted rigorously. It has been certified under relevant pool standards, such as ANSI, APSP, and UL. Our film has good flexibility, the effective isolation of various substances and rapid dissolution of water
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Douai is manufactured by complying with a variety of electrical standards, including electrical safety, electromagnetic compatibility (EMC) and the chemical composition of materials. For now, Polyva has applied for 9 invention patents including 5 utility patents
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Douai is exclusively developed with good phone adaptability by the R&D team. It has been proved that it meets safety requirement. Water- soluble packaging bags are light which reduce the transportation cost
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The manufacturing process for the materials of Douai includes many steps that determine the precise set of properties for the finished product, such as wrinkle resistance and colorfastness. The PVA water soluble film can be widely applied like pesticide packing, medical laundry bags and so on
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Douai has passed the workmanship assessment. It is evaluated in terms of stitching, construction, attachments and fasteners, embellishments, shading within a garment, pattern continuity/matching, tapes, and linings. The PVA water soluble film can be widely applied like pesticide packing, medical laundry bags and so on
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The professional QC team secures the quality of this product. Our products range covers cold water soluble packaging PVA film series which include over 10 different types