Do you know the development history of food packaging vacuum bags?

Vacuum packaging technology originated in the 40 s, since the 50 s plastic film successfully applied in commodity packaging, vacuum packaging technology has been rapid development. Packaging level to a certain extent, reflects a national science and technology level and the degree of the rich. Vacuum packaging technology research and application in our country is still in its infancy. A, 1962, Ordal opaque oxygen membrane can inhibit the growth of pathogenic microorganisms, fresh meat packaging can prolong the shelf life. Second, Baltzer think vacuum packaging of fresh meat is the shelf-life of the aerobic packaging of fresh meat long reasons: ( 1) Under the condition of anaerobic microbe total number increases slowly; ( 2) Decay and mucus reduce; ( 3) Storage after vacuum packaging, eventually the number of microorganisms is less than aerobic packaging. This shows that opaque oxygen membrane vacuum packing fresh meat, after the oxygen into carbon dioxide, oxygen air membrane can cut off the outside world no longer into the packaging, so the vacuum packing can prolong the shelf life of fresh meat. 3, 1970, Pierson, created a vacuum was proposed to select the kinds of microorganism and level & other; Ecosystem & throughout; 。 SCOPA company in 1974 for the first time application MAP ( ModifiedAtmospherePackage, is a kind of vacuum first, then into a certain proportion of mixed gas packaging) Meat packing. Four, Pesis (such as 1986). Put forward the vacuum packing is the best method of preservation of persimmon fruit quality and hardness. Thus, fresh-keeping technology for the development and popularity of the increasingly attention by producers, operators and consumers. Is vacuum packaging equipment needed for the other part of the packaging container, packaging container of the sort is more, such as plastic, plastic and paper, aluminum foil composite material consisting of composites, glass bottles, metal containers and hard plastic, etc. , for the selection of packaging container shall be determined according to the properties of the vacuum packing food, such as canned food is application of glass or metal cans, such as traditional Chinese medicine with aluminum foil or plastic, and so on. Although vacuum packing container material sort is more, but is one of the most common plastic film.