The quality control of Douai is conducted rigorously. It has been certified under relevant pool standards, such as ANSI, APSP, and UL. Water- soluble packaging bags are light which reduce the transportation cost
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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. Located in Nanhai High-tech Zone, our factory covers 3300 square meters with over 60 employees
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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. For now, Polyva has applied for 9 invention patents including 5 utility patents
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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. Until now, we have developed 6 formula systems of PVA film with over 20 models of PVA film
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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. Water soluble film can also be tested and verified by professional authority
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The professional QC team secures the quality of this product. Our products have passed ISO9001 quality management system certificate