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Plastic composites or proprietary blends can be more difficult to identify. If there are no markings to identify the type of plastic used, it may still be identified by using various types of spectroscopic technology such as optical spectrometer, Raman mid-infrared spectroscopy, [4] and near-infrared spectroscopy, along with mass spectrometry. [3]
Stacked film cans containing rolls of film. Film preservation, or film restoration, describes a series of ongoing efforts among film historians, archivists, museums, cinematheques, and non-profit organizations to rescue decaying film stock and preserve the images they contain. In the widest sense, preservation assures that a movie will continue ...
A film can is the light-tight container used to enclose film stock. They are typically a circular box pressed from thin sheet metal, but plastic examples are also used. Film cans are used to hold unexposed film, exposed film ready for developing and also for the distribution of completed film prints. The last of these does not require the can ...
Working at dirty workstations or using bad rollers for motion picture film can cause dirt, scratches, and abrasions. Tears can occur when the film is stressed during winding or projection, in addition to improper threading. [13] Repeated use, including the repeated insertion and removal of film from sleeves can also cause scratches and abrasions.
Sealed food alongside a home vacuum sealer and plastic rolls used for sealing. Vacuum packing is a method of packaging that removes air from the package prior to sealing. This method involves placing items in a plastic film package, removing air from inside and sealing the package. [1]
The 300-plus-year-old glass onion bottles were discovered from the 1715 Treasure Fleet shipwreck, located off the coast of Florida.
A retort pouch or retortable pouch is a type of food packaging made from a laminate of flexible plastic and metal foils. It allows the sterile packaging of a wide variety of food and drink handled by aseptic processing and is used as an alternative to traditional industrial canning methods.
Residents soon can turn in wine bottles, liquor bottles and other large beverage containers for cash. Gov. Gavin Newsom signed one measure amending the so-called California Bottle Bill into law in ...
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