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Is it a vacuum food line

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The process of vacuum packaging: firing – cooling – vacuum packaging – sterilization – packing. In the first step, is the firing process an assembly line

I. The definition, also known as decompression packaging, is to extract and seal all the air in the packaging container and maintain the bag in a highly decompression state. The scarcity of air is equivalent to the effect of low oxygen, so that microorganisms have no living conditions, so as to achieve the purpose of fresh fruits and no disease and rot. At present, there are vacuum packaging in plastic bags, aluminum foil packaging, glassware, plastic and composite packaging, etc. Packaging materials can be selected according to the type of articles. As fruits are fresh food, they are still breathing, and high hypoxia will cause physiological diseases. Therefore, less fruits use vacuum packaging. [edit this paragraph] 2. The mechanism of vacuum packaging 1. It is to reduce the oxygen content in the package, prevent the mold rot and deterioration of the packaged food, keep the color and flavor of the food, and extend the shelf life
2. Vacuum packaging certainly plays an important role in food But it has an extraordinary effect when it is used in the processing of clothing products
3. Compared with ordinary packaging methods, vacuum packaging reduces the space occupied by articles And it has the advantages of moisture-proof, dust-proof and bacteria proof, which makes the transportation of clothing items more convenient
4. It greatly reduces the possibility of loss caused by some accidents. [edit this paragraph] III. principle of vacuum packaging one of the important links in vacuum packaging is deoxidization, which is conducive to preventing food deterioration. Its principle is also relatively simple. Because food mildew and deterioration are mainly caused by the activities of microorganisms, and the survival of most microorganisms (such as molds and yeasts) requires oxygen, which is used in vacuum packaging, The oxygen in the packaging bag and food cells is pumped out, so that microorganisms lose their “living environment”. Experiments show that when the oxygen concentration in the packaging bag is ≤ 1%, the growth and reproduction speed of microorganisms will drop sharply. When the oxygen concentration is ≤ 0.5%, most microorganisms will be inhibited and stop reproduction. (Note: vacuum packaging cannot inhibit the propagation of anaerobic bacteria and the deterioration and discoloration of food caused by enzyme reaction, so it also needs to be combined with other auxiliary methods, such as refrigeration, quick freezing, dehydration, high-temperature sterilization, irradiation sterilization, microwave sterilization, salt pickling, etc.
in addition to inhibiting the growth and reproduction of microorganisms, vacuum deaeration has another important function to prevent food oxidation due to oil Fatty foods contain a large number of unsaturated fatty acids, which are oxidized by oxygen and make the food taste and deteriorate. In addition, oxidation also causes the loss of vitamin A and vitamin C, and the unstable substances in food pigments are darkened by oxygen. Therefore, deoxidization can effectively prevent food deterioration and maintain its color, aroma, taste and nutritional value
another important link in vacuum packaging is inflation. In addition to the oxygen removal and quality assurance functions of vacuum packaging, the main functions of vacuum inflatable packaging are compression resistance, gas blocking and preservation, which can more effectively maintain the original color, aroma, taste, shape and nutritional value of food for a long time. In addition, vacuum packaging is not suitable for many foods, but vacuum inflatable packaging must be used. Such as crisp and fragile food, food easy to agglomerate, food easy to deform and take oil, food with sharp edges and corners or food with high hardness that will pierce the packaging bag, etc. After the food is vacuum inflated and packaged by the food vacuum packaging machine, the inflation pressure in the packaging bag is greater than the atmospheric pressure outside the packaging bag, which can effectively prevent the food from being crushed and deformed under pressure and does not affect the appearance, printing and decoration of the packaging bag
after vacuum, the vacuum inflatable package is filled with nitrogen, carbon dioxide, oxygen, a single gas or a mixture of 2-3 gases. Nitrogen is an inert gas, which plays the role of filling and keeps the positive pressure in the bag, so as to prevent the air outside the bag from entering the bag and protect the food. Oxidized carbon gas can be dissolved in various fats or water to form carbonic acid with weak acidity, and has the activity of inhibiting molds, spoilage bacteria and other microorganisms. Oxygen can inhibit the growth and reproduction of anaerobic bacteria and maintain the freshness and color of fruits and vegetables. High concentration of oxygen can keep fresh meat bright red. [edit this paragraph] IV. characteristics of vacuum packaging 1. It eliminates part of the air (oxygen) in the packaging container and can effectively prevent food corruption and deterioration
2. The use of packaging materials with excellent barrier (air tightness) and strict sealing technology and requirements can effectively prevent the exchange of materials in the packaging content, avoid food weight loss and taste loss, and prevent secondary pollution
3. The gas inside the vacuum packaging container has been eliminated, which accelerates the heat conduction, which can improve the thermal sterilization efficiency and avoid the cracking of the packaging container due to the expansion of gas during heating sterilization. [edit this paragraph] v. development of vacuum packaging vacuum packaging technology originated in the 1940s. In 1950, polyester and polyethylene plastic films were successfully used in vacuum packaging. Since then, vacuum packaging has developed rapidly
China’s vacuum packaging technology was developed in the early 1980s, while vacuum inflatable packaging technology began to be used in a small amount in the early 1990s. With the promotion of small packaging and the development of supermarkets, its scope of application is becoming more and more extensive, and some will gradually replace hard packaging, which has a very promising prospect
in the food industry, vacuum packaging is widely used in various cooked products, such as chicken legs, ham, sausage, grilled fish slices, beef jerky, etc; Vacuum packaging is increasingly used in pickled products, such as all kinds of pickles, bean products, preserved fruits and other foods that need preservation. The vacuum packaged food has a long preservation period, which greatly prolongs the shelf life of the food
small vacuum packaging machine is suitable for household vacuum packaging machine sealed with composite film or aluminum foil bag, with small shape, practical function and simple operation. The price of single chamber vacuum packaging machine is the most economical type. The full-automatic small vacuum packaging machine adopts microcomputer program control operating system and electromechanical integration technology, To a large extent, it meets the needs of people’s daily life. Such as preserving food, bedding, etc. Especially for the preservation of cotton and linen fabrics, the vacuum greatly saves space and is very popular with users. For the description of vacuum packaging machine, please refer to “industry knowledge” in the navigation bar
technical features of economical vacuum packaging machine:
1. Feeding and discharging mode: forward and right out
2. The compression vacuum packaging machine adopts the fixed instantaneous heating mode of hot box to save energy
3. Special electric heating arrangement and uniform heat distribution
4. The machine body is small and covers a small area
5. Suitable for small batch production and medium volume production Vacuum packaging machine that can cooperate with
assembly line operation and improve efficiency
6. The spare parts imported from Taiwan, Japan and South Korea are used, with stable and reliable performance.
special specifications can be customized according to your needs. Welcome to inquire about the price of vacuum packaging machine and the use of vacuum packaging machine
application scope of vacuum packaging
1. Cured products: sausage, ham, bacon, salted duck, etc
2. Pickles: pickled mustard, dried radish, turnip, pickle, etc
3. Bean products: dried tofu, plain chicken, bean paste, etc
4. Cooked food products: roast chicken, roast duck, sauce beef, etc
5. Convenience food: rice, instant wet noodles, cooked vegetables, etc
6. Soft cans: fresh bamboo shoots, sugar fruit, eight treasures porridge, etc

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