Throughout the world, zipper bags are widely used in the packaging of major industries and have become one of the most popular packaging formats in the world market today. The zipper bags are generally large in size. The materials are made of woven bags, transparent PE or OPP plastic films. The zippers are ordinary plastic zippers and are generally used for dried fruit packaging relatively large goods such as quilt outer packaging, large simple duffel bags and so on.
https://www.dxcbag.com/food-packaging/