We all know that with vacuum packaging, there will be a great guarantee for food packaging in the future. Various packaging techniques are presented from time to time in the modern market, and the application of high technology provides a perfect foundation for the perfection of food packaging. In many packaging techniques, each has its own technical advantages. The following is a small series of Guangdong Music group intelligent Technology. This is an air-conditioned packaging technique used in food packaging machines.

As a food packaging technology, air-regulated packaging has a long history in the application of food packaging equipment. As early as the 1930s, Europe and The United States began to study the use of CO2 gas storage of meat products. In the 1950s, N2 and CO2 gas were developed to replace the air in canned beef and cheese cans, which extended the shelf life. In the 1960s, due to the development of various air-tight plastic packaging materials, many foods, such as meat, fruits, vegetables, cakes, tea and dairy products, successfully adopted the technology of gas replacement packaging. In the 1970s, aerated packaging of fresh meat was widely used in Europe and The United States. Since then, aerated packaging has flourished in the world. It can be said that the pneumatic packaging technology in the use of food packaging machine is very capable, in the modern food packaging profession is very common.

Air-regulated preservation packaging is also called MAP or CAP in foreign countries, air-regulated packaging or displacement gas packaging, gas packaging. It selects the packaging materials with the function of gas isolation to pack the food. According to the customer's theoretical requirements, the mixed gases of O2+CO2, N2+CO2 and O2+CO2 will be filled into the packaging to prevent the food from falling in physical, chemical, biological and other aspects or slow down the rate of mass falling, so as to extend the shelf life of food and improve the food value.

Three common applications of air-conditioned packaging:

1. Application of CO2 in food packaging

In China, nanometer technology has been successfully used to efficiently catalyze the composition of CO2 degradable plastics. Even if the catalyst used to make plastics with CO2 was "destroyed" to the nanoscale, the catalytic molecules were polymerized with CO2, so that each gram of catalyst catalyzed 130 grams of CO2, forming a new packaging material containing 42%CO2. As a good degradable environmental protection material, it has a wide application prospect.

2. Application of nitrogen in food packaging

Nitrogen (N2) is an ideal inert gas, which has special effects in food packaging: it has no chemical reaction with food and is not absorbed by food. It can reduce the oxygen content in the package, greatly restrain the growth and reproduction of bacteria, mold and other microorganisms, and slow down the oxidation and decay of food, so as to keep food fresh. Nitrogen-filled packaging food can also prevent food from being kneaded and broken, food bond or shrink into a ball, adhere to the food shape, dry, crisp, color, flavor and other advantages. Now nitrogen-filled packaging is rapidly replacing the traditional vacuum packaging, has been used in fried potato chips and French fries, oil cooking food, etc. Popular with consumers, especially children and youth, nitrogen-filled packaging is expected to be used in more food packaging.

3. Application of compound gas in packaged food

The composite air-modulated preservation packaging is collectively referred to as MAP packaging in the world. The air-modulated preservation gas used is generally composed of CO2, N2, O2 and a few special gases. CO2 can restrain the growth and multiplication of most aerobic spoilage bacteria and molds; O2 keeps most anaerobic putrid bacteria from growing and multiplying; Adhere to the fresh meat color, maintain the fresh fruits and vegetables oxygen - rich respiration and freshness; N2 as filling gas. According to the food varieties, preservation requirements and packaging materials, the composition of composite gas can reach the effect of high quality of fresh food, good nutritional composition, true to the original character, and delay the shelf life of fresh food. Composite air-conditioned fresh-keeping packaging has been widely used at home and abroad.

With the rapid development of science and technology, commodity packaging has become an important way to promote sales and strengthen competitiveness. Many new techniques, new processes and new ideas have been applied in packaging planning, packaging technology, packaging equipment, new packaging materials, new packaging industry and so on. Packaging planning has entered the age of computerization, and a planning method suitable for rapid updating by means of computers and various information systems has been presented. Today's planners, it is necessary to have the basic skills of packaging planning, but also to be able to think, appreciate, understand the concept, and computer technology is to establish on the basis of the aforementioned skills. Together with packaging planners, it is also necessary to know the relevant packaging manufacturing process, how to select materials, and how to use modern packaging manufacturing equipment, such as pre-press processing equipment, post-press disposal equipment, etc. Not only packaging planning to computerization, packaging technology in the use of packaging machine is now separated from the computer, which is also an important trend of packaging machine career development, there will be more technology integration in the future, the advantages brought by the computer will only be better and better.

The molding of packaging includes the molding of metal packaging, plastic packaging, paper packaging and other composite material packaging. Many different materials of packaging molding has been using air pressure, impact, wet treatment, vacuum technology to complete the process of simplification and scientific.