Glossary

depending on its density, it may be low density (see LDPE). medium density (see MDPE). or high density, (see HDPE).

Tough, temperature resistant polymer. Bi-axially oriented PET film is used in laminates for packaging, where it provides strength, stiffness and temperature resistance. It is usually combined with other films for heat sealability and improved barrier properties.

The most expensive shrink film for full body shrink sleeves, but clear, glossy, strong, and most recyclable. The highest shrink percentage available is about 75%, so this film is often required when the container has a narrow waist or neck.

a stand-up pouch that is made from one piece of film. The front, gusset, and back are continuous, so there is no seal at the gusset. Holds more weight than Doy-style pouches, so are commonly used for products weighing more than one pound.

The Pantone Matching System is the universally accepted color definition system. Colours can be blended or individually specified to match a specified Pantone reference colour exactly.

Has much higher melting point, thus better temperature resistance than PE. Two types of PP films are used for packaging: cast, (see CAPP) and oriented (see OPP).

A tough, stiff, very clear film. The oriented version is used mainly for shrink film applications.

Shrink percentages vary from about 40% for extruded PVC shrink tubing to over 60% for seamed material. The most cost-effective shrink film for full-body shrink sleeves.

A very good oxygen and water vapour barrier, but not extricable, therefore it is found primarily as a coating to improve barrier properties of other plastic films, (such as OPP and PET) for packaging. PVDC coated and ‘saran’ coated are the same.