Douai is designed and manufactured using high-quality material and the latest techniques in compliance with industry standards. Water- soluble packaging bags are light which reduce the transportation cost
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The design of Douai is never out of date. For now, Polyva has applied for 9 invention patents including 5 utility patents
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The design and material selection processes of Douai are strictly controlled. The performance of our water-soluble PVA film for laundry detergent products has reached internationally advanced level
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Douai leads in design and technology. Water- soluble packaging bags can be also applied as a pesticide packaging that greatly reduces the incidence of pesticide poisoning
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The manufacturing process of Douai is safe and reliable. The film Ployva produces enjoys excellent compatibility with liquid detergents
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A rigorous quality control process ensures zero defects and consistent quality. The film Ployva produces enjoys excellent compatibility with liquid detergents