Sealed Air Sealed Air Sealed Air Corporation is a packaging company known for its brands: Cryovac food packaging and Bubble Wrap cushioning packaging. Sealed Air Corporation has two divisions: Food Care & Product Care. It sold off its stake in Diversey Care in 2017. Ted Doheny is the CEO of the Charlotte, North Carolina-headquartered Sealed Air. In 1957, Alfred W. Fielding and Marc Chavannes attempted to invent plastic wallpaper with a paper backing. While the wallpaper failed, Fielding and Chavannes later realized that what they had come up with could be used for packing material. Sealed Air was founded in 1960 based
Conservation and restoration of photographic plates used to wash the silver particles that are not part of the image, which then produces a stable negative image. This negative image can then be used over many years to produce paper positives. Glass plates as a form of support were popular in use between 1851 and the 1920s. Photographic plates face certain challenges to their preservation. In order to protect against deterioration or damage, conservators seek to identify the agents that threaten the various materials that make-up photographic glass plates. The primary agents of deterioration include the following: Relative humidity (RH) and temperature are two of the most