Reusable Grocery Bags - How They Are Made and Recycled
Plastic grocery bags are a major contributor to marine debris, making them an important issue for the environment. Hundreds of billions of carrier bags are used annually, and a recent study found that one in four contain high levels of lead. According to Bloomberg News, Wegmans Food Markets Inc., a chain of East Coast supermarkets, replaced reusable shopping bags with plastic ones. The new bag designs were found to contain large amounts of lead, according to the report. When making plastic grocery bags , the material is produced from ethylene, a gas produced by combustion. This gas is processed to form polymers. One of the polymers is polythene, which is a high-density polymer. Once made, polythene is shipped to manufacturers. The material is then melted under controlled heat and is then rolled into sheets. Next, the two sheets are fed into binding machinery, which seals them together. The main advantage of plastic grocery bag s is that they can be recycled multiple times. Once you'