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BOPPT & BOPP Films >> Bopet
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Biaxially-oriented polyethylene terephthalate (BoPET) is a polyester film made from stretched polyethylene terephthalate (PET) and is used for its high tensile strength, chemical and dimensional stability, transparency, reflectivity, gas and aroma barrier properties and electrical insulation.

Uses for BoPET polyester films include, but are not limited to:

Flexible packaging and food contact applications

Laminates containing metalized boPET foil (In technical language called printing or laminate web substrate) protect food against oxidation and aroma loss, achieving long shelf life. Examples are coffee "foil" packaging and pouches for convenience foods.
2. Attractive glossy or matte surfaces on the outside of packages are achieved using boPET.
3. White boPET web substrate is used as lidding for dairy goods such as yoghurt.
4. Clear boPET web substrate is used as lidding for fresh or frozen ready meals. Due to its excellent heat resistance, it can remain on the package during microwave or oven heating.
5. Roasting bags

Covering over paper

1. A clear overlay on a map, on which notations, additional data, or copied data, can be drawn without damaging the map
2. Metalized boPET is used as a mirror-like decorative surface on some book covers, T-shirts, and other flexible cloths.
3. Protective covering over buttons/pins/badges
4. The glossy top layer of a Polaroid SX-70 photographic print
5. As a backing for very fine sandpaper
6. BoPET film is used in bagging comic books, in order to best protect them during storage from environmental conditions (moisture, heat, and cold) that would otherwise cause paper to slowly deteriorate over time. This material is used for archival quality storage of documents by the Library of Congress< and several major library comic book research collections, including the Comic Art Collection at Michigan State University. While boPET is widely (and effectively) used in this archival sense, it is not immune to the effects of fire and heat and could potentially melt, depending on the intensity of the heat source, causing further damage to the encased item.
7. For protecting the spine of important documents, such as medical records.

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