Smart Vision Company manufactures and supplies food bags that rely on polyamide raw materials. Polyamide is considered one of the most important preservative materials for foodstuffs that contain a large percentage of fats or proteins that make them susceptible to bacterial activity. Polyamide bags work to preserve these Products and prevent bacterial activity by blocking the oxygen element from the food material, which stops any bacterial activity and eliminates it. The polyamide material also works to prolong the life of the marketing product.