1. The main function is to remove oxygen.
In fact, the preservation principle of vacuum packaging machine is not complicated, and the most important link is to remove oxygen from the packaged products.
Only the oxygen in the packaging bag and food is pumped out, and then the packaging is sealed to prevent air from entering, so that oxidation will not occur, thus achieving the effect of preservation.
The use and use of vacuum packaging machines are conducive to preventing food deterioration. Its principle shows that food mildew and deterioration are mainly caused by the activities of microorganisms, and the survival of most microorganisms requires oxygen, the vacuum packaging is to use this principle to remove oxygen from the packaging bag and food cells, so that microorganisms lose their living environment.
Vacuum Packaging cannot inhibit food deterioration and discoloration caused by anaerobic bacteria reproduction and enzyme reaction, so it needs to be combined with other auxiliary methods, such as refrigeration, quick freezing, dehydration, high temperature sterilization, irradiation sterilization, microwave sterilization, salt pickling, etc. 2. Prevent food oxidation.
Because oil and fat foods contain a large amount of unsaturated fatty acids, they are oxidized by oxygen, which makes food taste and deteriorate.
In addition, oxidation also causes loss of vitamin A and vitamin C, and unstable substances in food pigments are affected by oxygen, thus darkening the color.
Therefore, Deaeration can effectively prevent food from deteriorating and maintain its color, aroma, taste and nutritional value. 3, the inflatable link.
The main function of vacuum Inflatable packaging is not only to remove oxygen and guarantee quality, but also to resist pressure, resist gas and keep fresh, it can more effectively maintain the original color, aroma, taste, shape and nutritional value of food for a long time.
In addition, there are many foods that are not suitable for vacuum packaging, but must be vacuum-filled.
Such as crispy and fragile food, caking food, easily deformed oily food, food with sharp edges or high hardness that will puncture the packaging bag, etc.
After the food is vacuum-inflated 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 of the packaging bag and the printing and decoration.
Vacuum Inflatable packaging is filled with nitrogen, carbon dioxide, oxygen single gas or 2-A mixture of three gases.
Nitrogen is an inert gas, which plays a filling role and keeps positive pressure in the bag to prevent air outside the bag from entering the bag and plays a protective role in food.
Carbon oxide gas can be dissolved in various fats or water to form carbonic acid with weak acidity, and has the activity of inhibiting microorganisms such as mold and spoilage bacteria.
Oxygen can inhibit the growth and reproduction of anaerobic bacteria, keep the freshness and color of fruits and vegetables, and high concentration of oxygen can keep fresh meat bright red.
Xinle Hongtai packaging products factory's business scope: non-woven bags, paper bags, paper products packaging, coated paper production, wholesale sales, the company covers an area of 1500m2 square meters, newly built 930m2 square meters of production plant, 300 square meters of office, the total construction area of the project 1230m2 square meters, purchase 14 sets of production equipment such as printing machine, bag pasting machine, paper cutting machine, slicer, middle sewing machine and bottom sewing machine (Set).
The company's main products: food bags, oil-proof bags, bread bags, non-woven bags, chestnut bags with the fierce market competition, product performance is improving.
The quality of the products has always been controlled in an excellent state and has been well received by customers. We uphold'
Continuous progress, adhere to strict quality control, sincere service, to ensure customer satisfaction'
Quality policy, with professional skills and enthusiasm to provide our customers with thoughtful service.
And market-oriented, customer-centered, adhere to the quality of the road.