In fleshy food production machines a process in, existing from beginning to end two kinds ripe make technology, namely high temperature high pressure is antiseptic often press with microtherm antiseptic. Because the fleshy food with antiseptic low temperature heats temperature is low, fleshy fiber was not destroyed, mouthfeel is consequently fresh and tender, it is better that all sorts of nutrition compositions are saved; But killed pathogenic bacteria only as a result of its, still put in a large number of corrupt bacterium, not only the expiration period is brief, and the loss in creating current field extremely easily. Because the fleshy food with antiseptic high temperature heats temperature is high and make fleshy fiber excessive and contractive, mouthfeel is not as antiseptic as microtherm goods, but because its killed all bacteria, removed corrupt internal cause, can extend the expiration period greatly.

If the fleshy food with antiseptic high temperature is used tall cut off the gender packages data, deposit the expiration period below normal temperature not only longer, and carry, storage, the sale is very advantageous, fit the consumptive requirement of modern society very much. Accordingly, expand the production that the fleshy products that store is able to bear or endure below normal temperature energetically, it is the product development direction with fleshy food essential industry. And the industry that pack complies with trend of this kind of development, serve as somewhat, innovate somewhat, can satisfy the need of food industry already, also can gain broad market for oneself at the same time.

As we have learned, appear the earliest what carnivorous tastes can be being deposited to pack below normal temperature is potted, it is to use tin board the iron jar that makes, use vitreous bottle to make outer packing again later. Tin board have with vitreous bottle high temperature resistant the evaporate sex that boil and tall cut off quality, because this is potted,the expiration period of food can achieve 2 years of above. But because tin canister is mixed,vitreous bottle is rigid container, big, quality weighs bulk, of tin be able to bear or endure chemistry is caustic bad, ionic Yi Xi gives the metal when loading acidity food especially, affect food gust.

20 centuries 60 time, the United States is packed to solve space navigation alimental and invented aluminous model compound film, pack fleshy food with it, press through tall Wen Gao antiseptic, can put in the remain after deduction of normal temperature, the expiration period is as long as 1 year of above. Aluminous model is compound velar action is similar and potted box, soft, qualitative light, because this gets a soft can. Current, the fleshy food with longer expiration period is deposited below normal temperature, if use rigid package container, still choose tin canister and vitreous bottle; If use flexible package, introduce aluminous model entirely almost compound film.

Compound film is aluminous model lamination is compound and multilayer film, it is three-layer commonly, typical structure is surface layer / glue sticky agent / aluminum foil / glue sticky agent / heat seals a layer (CPP) . This advantage of the film that pack is to have beautiful exterior and good machinery to cut off function, high function, high temperature resistant the evaporate function that boil and admirable wholesome sex, and qualitative light, soft, pack because of what this is used extensively at all sorts of food. But also put in a few blemish, if aluminum foil character is strong fragile, not quite as better than plasticity as plastic film photograph wait.
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