Polyethylene Terephthalate

PET (also abbreviated PETE) is the major polyester used for food packaging. The amorphous form of PET (APET) is used mostly as injection blow-molded bottles for carbonated soft drinks, water, edible oil, juices, and similar products. PET bottles are stronger and clearer and provide a better gas barrier than HDPE bottles, although they are more expensive.

APET is also used to produce films that have high strength, a high melting point (267°C), high scuff resistance, good clarity, good printing characteristics, and excellent dimensional stability. Because of their poor heat sealability, PET films are often laminated or extrusion coated with a heat-sealable layer such as PVDC and LDPE.

The crystallized form of PET (CPET) can withstand temperatures up to 220°C without deformation. Thus CPET food trays are used in microwave/conventional dual ovens. PETG is a copolymer of PET and 6% cyclohexane dimethanol that is used in thermoforming applications.

Fantastic Organic Food Facts

Fantastic Organic Food Facts

Get All The Support And Guidance You Need To Be A Success At Utilizing Organic Foods. This Book Is One Of The Most Valuable Resources In The World When It Comes To Getting The Right Information About Eating Healthy With Organic Food.

Get My Free Ebook

Post a comment