PackagingGURUji

Typical plastic-based packaging structures for MAP applications

The following section provides a brief overview of the commonly used plastics for MAP applications.

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including properties of packaging importance, definitions and terminology

Ethylene vinyl alcohol (EVOH)

01

– gas barrier layer – sandwiched between PE and PP – high mechanical strength – high resistance to oils and organic solvents and high thermal stability.

Polyethylene (PE)

02

– Seal more effectively for meat juices, fats, and powders. – offers enhanced heat-sealing properties. – Sealant layer on base trays and lidding films.

Polyamides (PA)

03

– high tensile strength, puncture and abrasion resistance, and gas barrier properties. – Nylon is generally laminated to PE

Polyethylene terephthalate (PET)

04

– flexible, rigid, and semi-rigid packaging structures. – PP is a sound water vapor barrier but a poor gas barrier.

Polystyrene (PS)

05

– stiff, brittle material and has limited use in MAP applications. – Base tray for overwrapped fresh meat, fish, and poultry products.

Polyvinyl chloride (PVC)

06

– low softening temperature and good processing properties – Oil and grease resistance is Excellent – Excellent optical properties and exhibits high gloss

Polyvinylidene chloride (PVdC)

07

– Possesses excellent gas, water vapor, and odor barrier properties – Good resistance to oil, grease, and organic solvents.

Bread bun

Microwave Food Packaging