There has been some debate over which bag material - polypropylene bags or polyethylene bags - is best suited for bagging applications. Below we list some of the most important comparisons between polyethylene film andpolypropylene film material.[one_fourth] [end-styled-image] [/one_fourth] [three_fourth_last] Polyethylene (PE) Bags
Polyethylene is flexible, durable and tear-resistant. Polyethylene is the most widely used plastic polymer - being used for plastic bags, plastic films, etc. You can often find them used by industrial operations to package heavy items. It is divided into four categories, including HDPE (high density polyethylene), LDPE (low density polyethylene), LLDPE (Linear low density polyethylene), and MDPE (Medium density polyethylene). Some added benefits of a PE bag include:
Polypropylene film is characterized by its high clarity - crystal clear - appearance. Polypropylene films are stiff (not flexible as the polyethylene films) and provide a protective barrier against moisture and chemicals. Bags produced from polypropylene film are generally used in food packaging (think candies and cookies), due to their ability to delay evaporation and dehydration. Polypropylene bags are also commonly used in electronics, manufacturing, hospitals, agriculture, and clean room applications.