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真空袋也称减压包装
真空袋也称减压包装,是依据大气压原理进行的,真空袋的主要作用是除氧,以有利于防止食品霉烂变质。真空包装就是把包装袋内和食品细胞内的氧气用抽气机抽掉,使微生物失去“生存环境”的过程。真空袋还能防止食品氧化,使食品不变味,变质减少维生素A和C的损失。
Vacuum bag, also known as vacuum packaging, is based on the principle of atmospheric pressure. The main function of vacuum bag is to remove oxygen, so as to prevent food from mildew and deterioration. Vacuum packaging is a process in which the oxygen in the packaging bag and food cells is pumped out by the air extractor, which makes the microorganism lose the "living environment". Vacuum bag can also prevent food oxidation, make food taste unchanged, deterioration, reduce the loss of vitamin A and C.
真空包装材料常用双层复合薄膜或三层铝薄复合薄膜制成的三道封口包装袋。真空包装机常用腔式和外抽式二种机型。我国的真空包装技术是在八十年代初期发展起来的,而真空充气包装技术在九十年代初期开始使用。
Vacuum packaging materials are usually made of double-layer composite film or three-layer aluminum thin composite film. There are two types of vacuum packaging machine: cavity type and external suction type. China's vacuum packaging technology was developed in the early 1980s, and the vacuum inflatable packaging technology began to be used in the early 1990s.
真空充气包装是在抽取真空后,再充入氮气、二氧化碳等气体。氮气是惰性气体,起充填作用,使真空袋保持正压,以防止袋外空气进入袋内,对食品起到一个保护作用。二氧化碳有抑制霉菌、腐败细菌等微生物的活性作用。有些如松脆易碎食品、易变形走油食品、有尖锐棱角或硬度较高会刺破真空袋等食品,经真空充气包装后,真空袋内充气压强大于包装袋外扭王块模具 高铁遮板模具 阶梯护坡模具 拱形护坡模具 卵形槽模具 保定室内设计培训 保定平面设计培训大气压强,能有效地防止食品受压破碎、变形,且不影响包装袋外观及印刷装潢。随着真空袋小包装的推广及超市的发展,其适用范围将越来越广泛,有些将逐步替代硬包装。
Vacuum inflatable packaging is to extract the vacuum, and then fill in nitrogen, carbon dioxide and other gases. Nitrogen is an inert gas, which plays a filling role and keeps the vacuum bag under positive pressure, so as to prevent the air outside the bag from entering into the bag, so as to protect the food. Carbon dioxide can inhibit the activity of fungi, spoilage bacteria and other microorganisms. Some foods, such as crispy and fragile food, easy to deform and take oil, with sharp edges or high hardness, will puncture the vacuum bag. After vacuum inflatable packaging, the air pressure inside the vacuum bag is greater than the atmospheric pressure outside the packaging bag, which can effectively prevent the food from crushing and deformation under pressure, and does not affect the appearance of the packaging bag and printing decoration. With the promotion of vacuum bag small packaging and the development of supermarkets, its application scope will be more and more extensive, some will gradually replace hard packaging

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  1. 名称:包装材料有限公司
  2. 电话:13313028229
  3. 手机:13313028229
  4. 联系人:刘经理
  5. 地址:xx

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