Vacuum packaging bag technology originated in the 40s, since the 50s plastic film successfully applied to commodity packaging, vacuum packaging bag technology has been rapidly developed. Packaging level to a certain extent reflects the level of science and technology and affluence of a country. China's vacuum packaging bag technology research and application is still in its infancy.
First, in 1962, Ordal proposed impermeable film can inhibit the growth of pathogenic microorganisms, packaging fresh meat can extend its shelf life.
Second, Baltzer that the vacuum packaging bags of fresh meat than aerobically packaged fresh meat shelf life longer for the following reasons: (1) the total number of microorganisms in anaerobic conditions increases slowly; (2) decay and mucus reduction; (3) after storage, the final number of microorganisms in the vacuum packaging is less than aerobic packaging. This indicates that the impermeable film vacuum packaging fresh meat, when the oxygen in it is converted to carbon dioxide, impermeable film can block the outside oxygen to re-enter the package, so the vacuum packaging bag can extend the shelf life of fresh meat.
Third, in 1970, Pierson and other proposed vacuum packaging to create a selection of microbial species and levels of "ecosystem". 1974 SCOPA company first applied MAP (ModifiedAtmospherePackage, is a vacuum first, and then In 1974, SCOPA first applied MAP (Modified AtmospherePackage, which is a kind of packaging that is first vacuumed and then filled with a certain percentage of gas mixture) to package meat products.
Fourth, Pesis et al. (1986) proposed that vacuum packaging bags are the best method to maintain the quality and hardness of persimmon fruit preservation. This shows that the development and popularity of storage and preservation technology is increasingly valued by producers, operators and consumers. Another part of the equipment required for vacuum packaging is the packaging container, packaging containers of more types, there are plastic, plastic and paper, aluminum foil and other composite materials composed of compound, glass bottles, metal containers and hard plastic, etc., the choice of packaging containers should be based on the nature of vacuum-packed food, such as canned food is applied to glass bottles or metal cans, such as Chinese herbal medicine with aluminum foil or plastic, etc.. Although there are more types of container materials for vacuum packaging bags, but the most common is plastic film.
With the advent of global economic integration, China top plastic industry to "be the most competitive flexible packaging industry leader", as the goal, continue to develop, innovation, and look forward to working with the majority of colleagues at home and abroad to create a better tomorrow.
Post time: Mar-29-2022