DuPont Researches New Aviation Thermal Insulation Membrane to Ensure Air Quality of Fruits and Vegetables, Eggs and Milk
It is understood that DuPont has developed a product named “Tyvek® Aviation Insulation Film†that can reduce the losses caused by cold chain problems in perishable products. At present, this product has been used in air, packaging and transportation of fruits, vegetables, dairy products, and so on, which maximizes the quality of food during transportation.
Each year, the world’s food waste caused by transportation problems has reached an alarming 1.3 billion tons, which is an enormous burden for any party in the supply chain. Even if it is as fast as air, its cold chain measures are not always flawless, and the quality of the cold chain directly determines the final quality, shelf life, and even market performance of the product.
DuPont's product named “Tyvek® Aviation Insulation Film†for air cargo development can significantly reduce the losses caused by cold chain problems during the air transportation of perishable products, thereby effectively enhancing cold chain aging and ensuring product quality. , extend the shelf life, reduce the cost of cold chain and secondary packaging. At present, the packaging product has been successfully used in the air packaging of pharmaceuticals, chemicals, inks, fruits, vegetables, plants, flowers, and dairy products.
First, Tyvek® insulation film protects cargo from rain, snow and insects, and reduces the adverse effects of sunlight and ambient temperature on the product; while maintaining relative humidity, it does not expose the product to greater condensation losses. risk. It is more conducive to fresh fruits and vegetables, Tyvek® insulation film does not prevent the natural breathing of fruits and vegetables, not only through the packaging layer of oxygen, carbon dioxide and other harmful gases such as ethylene can also be discharged from the packaging layer, reducing the harm to the product. What is even more commendable is that the fumigation of fruits and vegetables before they are exported is fully taken into account when designing the product. It is reported that this product has been approved by the U.S. Department of Agriculture and can be directly treated with methyl bromide fumigation after the goods are packaged. In addition, the product also has the advantages of being packed and unsealed.
Of course, the next set of data will be more intuitive and more convincing. To test the effect of Tyvek® on the final product quality and shelf life, DuPont conducted a controlled experiment on two groups of fresh asparagus that were airlifted from Peru, South America to Miami, USA. The two groups of subjects were in the same air transport environment except that one group was packaged in Tyvek® and the other group did not take special protective measures. In the experiment, the product temperature, air temperature, and relative humidity at the critical nodes during the entire transportation process were measured, and a third party organization was commissioned to evaluate the product quality and shelf life. The results of the experiment showed that the asparagus with Tyvek® products was 8-9 degrees Celsius lower than the average temperature of the asparagus in the control group during transportation; in the moisturizing effect, the moisture loss rate of the test group using Tyvek® was close to zero. The control group lost 1.5% due to relative humidity loss. The difference in temperature and humidity is also directly reflected in the final quality and shelf life of the product. The quality of asparagus using Tyvek® products was significantly better, with a 40% increase in shelf life compared to the control group.
Founded in 1802, DuPont is a scientific company that provides world-class scientific and engineering capabilities to help meet global challenges with innovative products, materials and services. The company's business covers more than 90 countries and regions in the world, covering agriculture and food, building and construction, communications and transportation, energy and biological applications and other fields. As of 2013, DuPont has been granted approximately 1,050 U.S. patents and approximately 2,500 international patents. It has more than 10,000 scientists and technicians and over 150 R&D facilities worldwide.
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