Polypropylene Bags, or poly bags, are made from a popular thermoplastic that is nontoxic, sturdy, lightweight, and is clear. These characteristics make poly bags ideal when you consider the wide variety of products that are stored in each bag. Poly bags can be used in the automotive or aerospace industry for storing small production parts or other uses within different manufacturing industries. This protects the parts from hazards like dust or chemicals and provides an easy way to carry the parts as the plastic can support their weight. One of the more popular uses of poly bags is within the food industry; this is where the non-toxic aspect of these bags comes into play.
Depending on the application, the plastic can be altered in order to provide more advantages in certain contexts. For example, zip lock bags can be used for museum and archival storage and these bags must meet strict standards in order to keep historical artifacts intact. Another example of poly bags being altered to fit an application is the addition of drawstrings on shopping bags or a printed bag that displays a stores logo.
There are a number of factors that go into making a poly bag and they all depend on the manufacturer and the customer’s desires. Every process begins the same way however, with the melting down of polypropylene resins until it is a thick liquid which is then extruded through a die. From here the plastic is made into a bubble shape through air pressure and is then stretched into a thin film. The final production steps are where things start to vary depending on desired thickness, custom sizes and other factors.
What Makes Poly Bags So Great?
Polypropylene Bags, or poly bags, are made from a popular thermoplastic that is nontoxic, sturdy, lightweight, and is clear. These characteristics make poly bags ideal when you consider the wide variety of products that are stored in each bag. Poly bags can be used in the automotive or aerospace industry for storing small production parts or other uses within different manufacturing industries. This protects the parts from hazards like dust or chemicals and provides an easy way to carry the parts as the plastic can support their weight. One of the more popular uses of poly bags is within the food industry; this is where the non-toxic aspect of these bags comes into play.
Depending on the application, the plastic can be altered in order to provide more advantages in certain contexts. For example, zip lock bags can be used for museum and archival storage and these bags must meet strict standards in order to keep historical artifacts intact. Another example of poly bags being altered to fit an application is the addition of drawstrings on shopping bags or a printed bag that displays a stores logo.
There are a number of factors that go into making a poly bag and they all depend on the manufacturer and the customer’s desires. Every process begins the same way however, with the melting down of polypropylene resins until it is a thick liquid which is then extruded through a die. From here the plastic is made into a bubble shape through air pressure and is then stretched into a thin film. The final production steps are where things start to vary depending on desired thickness, custom sizes and other factors.