many non-food items, the packaging is made more rigid by formed packing
materials that slip inside the box and hold the product and its accessories
or components in place. Forms of rigid packaging include crates, glass
bottles, and metal cans.
Polypropylene rigid packaging is a key raw material for rigid packaging as
its properties can be adapted and closely controlled to meet the needs of
the process and the end application. Uses include food packaging, industrial
chemicals and media. Polypropylene trays are used for fresh, refrigerated or
frozen foods such as desserts, salads and snacks, and as a barrier layer for
packaged foods to be stored for extended periods of time at ambient
Polyethylene is widely used in the rigid packaging industry. It is
transformed into bottles, tubs, pails, tanks, drums and containers of all
sizes, from a few milliliters to thousands of liters.
Polyester, made with monoethylene glycol (MEG), is the most popular plastic
container material in the world. It is currently used for carbonated soft
drinks, bottled water, juices, isotonics and personal care products such as
shampoo, and food packaging.