Oxygen Permeability Transparent Food Fresh-keeping Packing (Film) Bag

Restricted atmosphere modification (MA) is the use of low-O2 high-CO2 synergies to reduce the concentration of oxygen and increase the carbon dioxide gas concentration in the closed environment and the use of agricultural and sideline products in their own respiratory metabolic processes. It can resist the aging effect of harmful gases such as ethylene, reduce the consumption of nutrients, and achieve the effect of extending the storage time. Under the background of growing domestic and international energy shortages, such preservation measures using plastic film small packages or large tents, using agricultural and sideline products to adjust their own anti-aging, extend the storage time of the preservation method, simple, practical, energy-saving, low prices, Suitable for fresh use of agricultural and sideline products.

With the continuous improvement of the people’s living standards, people are not only increasing the demand for fruits and vegetables and fresh fish, but also have higher requirements on the freshness of fresh fruits and vegetables. They hope that fresh fruits and vegetables will be fresh throughout the year. Fish and other supplies. However, due to the fact that people consume large amounts of fruits and vegetables such as fresh fish, they are still living organisms. During transportation and storage sales, there are still requirements for breathing and humidity, and if they are careless, they can easily deteriorate and cause economic losses. Therefore, in recent years, foreign countries have set up fresh products packed with oxygen-permeable and moisture-permeable transparent food fresh-keeping bags. Generally, the oxygen concentration in fresh-keeping (film) bags is controlled at 2% to 10%, and the carbon dioxide content is controlled below 10%. Relative humidity control At 70% to 95%, the storage time is extended to maintain the color, aroma, taste, and freshness of fruits and vegetables. Under the guidance of the multiple compound blending modification theory, the Modified Plastics Professional Committee adopted high-tech and successfully produced such oxygen permeability and moisture-permeable transparent food fresh-keeping packaging (membrane) bags, which made up for the gap in the domestic market.

Reproduced from: China Plastics Additives Network