Back sealed bag is a common packaging bag, usually used for packaging food, cosmetics, drugs, gifts and other items. Its characteristic is the back sealing function, which can effectively protect the contents of the bag from external pollution or damage by folding or sealing the bag opening.

Back sealed bags are usually made of materials such as plastic, paper, or aluminum foil, which have certain functions such as moisture resistance, waterproofing, and gas permeation prevention. In terms of design, the back cover bag can be customized according to needs, with different sizes, colors, printed patterns, zippers or drawstrings to meet the needs of different customers.

Back sealed bags are widely used in daily life and commercial fields, and are a convenient and practical packaging method that can effectively protect the quality of goods and extend their shelf life.