The hottest modern packaging market

Modern packaging hot market

packaging design is one of the main factors in today's international market commodity competition. Packaging plays no less important role in promoting the overall image than advertising. For food commodities, the role of packaging is particularly obvious. At present, countries all over the world attach great importance to how to maintain the freshness of food in packaging containers. Showa chemical company of Japan is developing a variety of freshness keeping materials, one of which is to infiltrate a mineral concentrate with phosphoric acid as raw material into a water absorbing paper bag. In this case, the paper container is used to pack vegetables and fruits. During transportation, vegetables and fruits can get nutrition from the mineral concentrate. The company also developed a film made of high-purity phosphoric acid mixed with polyethylene film with xuniti subsidiary. Practice has proved that calcium phosphate can absorb ethylene and carbon dioxide gas, inhibit the decomposition of chlorophyll and maintain freshness. Recently, a kind of wrapping paper for the fastest cooked food, which can avoid moisture when heated, has been listed in Japan. The paper is synthesized from polypropylene pulp, polyethylene film, paper or aluminum and other multi-layer materials. When the supply of waste plastic particles is in short supply, the water vapor will condense on the surface of the film and then be absorbed by the pulp, so as to avoid wetting the food. In recent years, the application of aseptic packaging of food, which is the most popular in the world, is not limited to fruit juice and fruit juice drinks, but expanded to packaging milk, mineral water and wine. Experts believe that due to the limitations of refrigeration equipment, means of transportation and storage facilities, developing and using sterile packaging is more appropriate in developing countries. There are also many gratifying achievements in the research and development of edible packaging film. The cereal film developed by cremson University in South Carolina in the United States uses corn, soybean and wheat as raw materials to make corn protein into paper form, which can be used for packaging sausage and other foods. After use, it can be used for feeding birds or as fertilizer. The collagen film developed by "Natick" in the United States is made of animal protein collagen. It has high strength, good water resistance and good performance of isolating water vapor. It will melt during thawing and cooking, and is edible. It is used to package meat food without changing its flavor. The carrageenan film developed by Mitsubishi man-made fiber company in Japan is made of natural polysaccharides extracted from red algae. It is translucent, tough and has good heat sealing property. In addition, there are some edible protein films, such as milk protein, casein, zein, etc., and the newly developed edible packaging film with antibacterial function, such as adding bacteriostatic components such as lysozyme or nisin to the single film of zein or soybean protein, which can control the growth of pathogenic bacteria in food and food corruption caused by microorganisms. In the printing of food packaging, flexographic printing technology has emerged to ensure reliable results. This new pollution-free printing technology has the characteristics of non-toxic and tasteless products without benzene and heavy metals, non-toxic and odorless emissions, and no odor residue in printing materials. At present, this technology is used in 80% of product packaging in the United States

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