Vacuum Sealing Machine

The vacuum sealing machine puts the food into the packaging bag and extracts the air in the packaging bag to reach a predetermined vacuum degree, and then completes the sealing process. It can have the following functions: 1. Pumping and sealing the bag; 2. Sealing the bag directly; 3. Pumping the bag + filling with nitrogen or other gas + sealing.

There are various types of vacuum sealing machines, which are hand-pressed, vertical, single-chamber, and double-chamber. They are suitable for various foods, meat products, seafood, fruits and vegetables, pickles, chilled meat, medicine. Products, hardware components, medical equipment, etc. are vacuumed, inflated, and body-fitted. The series products include household vacuum sealing machine and external vacuum sealing machine.

Excluding some of the air (oxygen) in the packaging container can effectively prevent food from spoiling.
· It adopts packaging materials with excellent barrier properties (air tightness) and strict sealing technology and requirements, which can effectively prevent the exchange of substances in the package, which can avoid food weight loss, loss of taste and prevent secondary pollution.
· The gas inside the vacuum packaging container has been eliminated, which accelerates the heat transfer, which improves the heat sterilization efficiency and avoids the rupture of the packaging container due to the expansion of the gas during the heat sterilization.
In addition to the deoxidation and quality assurance functions of vacuum packaging, vacuum inflated packaging mainly has the functions of anti-pressure, gas barrier and preservation, which can effectively maintain the original color, fragrance, taste, shape and nutrition of food for a long time. value.
In addition, there are many foods that are not suitable for vacuum packaging and must be vacuum-filled. Such as crispy and fragile food, easy to agglomerate food, easy to deform and oily food, food with sharp edges or high hardness will pierce the bag. After the food is vacuum-insulated, the inflation pressure in the packaging bag is stronger than the atmospheric pressure outside the packaging bag, which can effectively prevent the food from being crushed and deformed without affecting the appearance and printing decoration of the packaging bag.
The vacuum inflated package is filled with a single gas such as nitrogen, carbon dioxide or oxygen or a mixed gas of two or three gases after being vacuumed. The nitrogen gas is an inert gas, which acts as a filling to maintain a positive pressure inside the bag to prevent the air outside the bag from entering the bag, thereby protecting the food. Its carbon dioxide is soluble in various types of fat or water, and it is classified into weakly acidic carbonic acid, and has the activity of inhibiting microorganisms such as mold and spoilage bacteria. Its oxygen inhibits the growth and reproduction of anaerobic bacteria, keeps the freshness and color of fruits and vegetables, and high-concentration oxygen keeps fresh meat fresh red.