Poly bags are a common shipping resource for numerous businesses in varied markets. However, despite how useful and common they are, few businesses know specifically what materials go into making them. Just having an understanding of how these bags are manufactured can provide you with a greater knowledge of how they can better be utilized. This makes it easier to not only get the most out of your wholesale purchase, but also gives you additional opportunities to package products sustainably. Learn what poly bags are made out of and how this knowledge helps you standardize the packaging process.
The Materials
When it comes to learning what poly bags are made out of, it helps to first know what a polymer is. A polymer is a molecule that’s comprised of a series of joined substances—all of which have their own set of unique properties. These substances form a bond and make up a soft, flexible material that can be combined with other things. Some materials made from polymers include polyester, nylon, and of course, plastic. Plastic, otherwise known as polyethylene film, is the number one component of poly bags and what makes them so durable. In most cases, this common plastic is formed from ethylene polymers made with the combination of petroleum and natural gas. This material, molded into shape by oil and natural gas, seals out external elements and preserves the integrity of the things being stored within the bag.
The Process
The process of creating many of the poly bags we commonly use begins with combining various monomers to form the required polymers for the type of bags being produced. Because some bags carry additional properties, manufacturers will often incorporate additional materials into their polymers to achieve the desired effect. Once the polymers are created, they’re melted down and pressed into a thin film. This layer of polyethylene is then stacked, depending on the desired thickness of the bag, pressed together, cut, and sealed. All these steps are performed by high-pressure industrial equipment that ensures each bag is properly proportioned and refined to a water-tight seal. It’s also important to note that these plastics can be melted down once again after use and be reused so long as they’re not contaminated.
At Royal Bag, Inc., we know exactly what it takes to create the perfect poly bag for all of your packaging and storage needs. As one of the top poly bag manufacturers, it’s our job to not only ensure our bags are made to help you succeed, but to also be the most cost-effective option. This way, you can afford to package any product you have in stock and keep the item contained within protected.