The Application of Optical Film
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Optical film can be applied on a lot of area, like Photoelectric, Flexible packaging and food contact applications, Covering over paper, Insulating material, Solar, marine and aviation applications, Semiconductor protect, Package of Electronic Parts.
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The Applications of PET Film
Uses for boPET polyester films include, but are not limited to:
*The Application of Photoelectric
Flexible packaging and food contact applications
• Laminates containing metallized boPET foil (In technical language called printin 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.
• White boPET web substrate is used as lidding for dairy goods such as yogurt.
• 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.
• Roasting bags
• Metallised films
• Laminated sheet metal (aluminum or steel) used in the manufacture of cans (bisphenol A-free alternative to lacquers)
Covering over paper
• A clear overlay on a map, on which notations, additional data, or copied data, can be drawn without damaging the map
• Metallized boPET is used as a mirror-like decorative surface on some book covers, T-shirts, and other flexible cloths.
• Protective covering over buttons/pins/badges
• The glossy top layer of a Polaroid SX-70 photographic print
• As a backing for very fine sandpaper
• 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[6] (specifically Mylar® type D)[7] and several major library comic book research collections, including the Comic Art Collection at Michigan State University.[8] 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.
• Similarly, trading card decks (such as Pokémon, Magic: The Gathering, and Yu-Gi-Oh!) are packaged in pouches or sleeves made of metallized boPET. It can also be used to make the holographic artwork featured on some cards, typically known as "holos", "foils", or "holofoils".
• For protecting the spine of important documents, such as medical records.
Insulating material
• An electrical insulating material
• Insulation for houses and tents, reflecting thermal radiation
• Five layers of metallized boPET film in NASA's spacesuits make them radiation resistant and help regulate temperature.
• Metallized boPET film emergency blankets conserve a shock victim's body heat.
• As a thin strip to form an airtight seal between the control surfaces and adjacent structure of aircraft, especially gliders.
• Light insulation for indoor gardening.
• Fire shelters, used by wildland firefighters.
• Aluminized proximity suits used by fire fighters for protection from the high amount of heat release from fuel fires.
• Used in sock and glove liners to lock in warmth
Solar, marine and aviation applications
• Metallized boPET is intended to be used for solar sails as an alternative means of propulsion for spacecraft such as Cosmos 1
• Metallized boPET solar curtains reflect sunlight and heat away from windows.
• Aluminized, as an inexpensive solar eclipse viewer, although care must be taken, because invisible fissures can form in the metal film, reducing its effectiveness.
• High performance sails for sailboats, hang gliders, paragliders and kites
• Use boPET films as the back face of the PV modules in solar panels
• Metallized boPET as a reflector material for solar cooking stoves
• To bridge control surface gaps on sailplanes (gliders), reducing profile drag
Electronic and acoustic applications
• Carrier for flexible printed circuits.
• boPET film is often used as the diaphragm material in headphones, electrostatic loudspeakers and microphones.
• boPET film has been used in the production of banjo & drumheads since 1958 due to its durability and acoustical properties when stretched over the bearing edge of the drum. They are made in single- and double-ply versions, with each ply being 2–10 mils (0.051–0.254 mm) in thickness, with a transparent or opaque surface, originally used by the company Evans.
• boPET film is used as the substrate in practically all magnetic recording tapes and floppy disks.
• Metallized boPET film, along with other plastic films, is used as a dielectric in foil capacitors.
• Clear boPET bags are used as packaging for audio media such as compact discs and vinyl records.
• Clear and white boPET films are used as core layers and overlays in Smart Cards.
Other
• Balloons
• Route information signs, called rollsigns or destination blinds, displayed by public transport vehicles
• For materials in kites
• Covering glass to decrease probability of shattering
• In theatre effects as confetti.
• As the adhesive strip to attach the string to a teabag.
• One of the many materials used as windsavers or valves for valved harmonicas.
• On farmland and domestic gardens, highly reflective aluminized PET film ribbons are used to keep birds away from plants.
• Measuring tape
• Protecting pinball machine playfields from wear
• Used in dentistry when restoring teeth with composite.
• In nail polish, as a coloured and finely shredded additive to create a glitter effect.
The Applications of PET Film is from wikipedia