Major changes have taken place in the packaging of

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Major changes have taken place in beer packaging

beer packaging is the carrier of beer sales. It determines the appearance quality and shelf image of beer when the test piece is close to damage, which is directly related to the market sales performance of beer, and it is also an important aesthetic expression level of beer culture. Beer has very strict requirements for packaging containers, especially for the oxygen resistance and barrier of packaging containers, and oxidation resistance and ensuring the content of carbon dioxide are important factors that directly affect the quality of beer

in recent years, due to the continuous emergence of various new technologies and materials, beer packaging has broken the long-standing situation of glass bottles dominating the world, and plastic packaging is entering the field of beer packaging with a rapid trend. By 1999, the number of plastic bottles of beer in the world had reached 20billion. Plastic packaging has brought great changes to the material, process and technology of beer packaging

plastic packaging in the beer industry

plastic is widely used in modern industry, but in the past, the problem of ensuring the quality of bottled beer (not only to avoid oxygen entering the bottle, but also to prevent carbon dioxide from escaping from the bottle) has not been solved, so it has been excluded from the field of beer packaging

with the continuous application of various new technologies and the continuous emergence of new materials, plastics have overcome the performance obstacles of its application in beer packaging. The mixed materials of PC, PE T, pen, pet and pen, as well as other new plastics such as PETG, have been widely used in the field of beer packaging

pcpc is formed by the polymerization of diphenyl ester and monophenol A. its advantages are good heat resistance (high temperature above 120 ℃) and high mechanical strength. PC was used in the field of beer packaging earlier, but its price is expensive and its gas barrier performance is poor, so it has gradually withdrawn from the field of beer packaging. It is reported that now an improved PC has been re introduced to the market and used in various beer and beverage packaging fields

pen is scientifically called polyethylene naphthalate, and its precursor product is DNC (dimethylnaphthalene). Pen has good heat resistance and gas barrier, can resist ultraviolet rays, and can also withstand pasteurization and high-temperature soaking temperature. Its service life can exceed 6 months, and its weight is light. It is a good beer packaging container. Gerard Denis, project manager of the research and Development Department of SIPA in Italy, said at the American beverage packaging Seminar: "beer bottles made with pen have shown little difference from glass bottles in Italy and Asia." However, due to the high cost of ethylene glycol and dimethyl-2.6-naphthalene-dicarboxylic acid, the promotion and application of pen is limited (only applied to some higher grade beer)

pet due to the price barrier of pen, PET materials have appeared in the market. Pet is polyethylene terephthalate. Because it is not resistant to high temperature, it was first developed for cold sterilized beer. Because cold sterilization uses membrane filtration technology, it does not undergo pasteurization or high-temperature instantaneous sterilization. Pet can not well block the penetration of gas, so it is not only insufficient in carbon dioxide content, but also easy to oxidize and deteriorate beer, so that the regenerated plastic raw material particles are full, and the shelf life of beer is relatively short, so its application is greatly limited

pen and pet blending materials in view of the respective shortcomings of pen and pet, researchers have introduced pen and pet blending materials, that is, 15% pen and 85% pet are mixed, and then processed by special processes, so that their performance indicators are greatly improved, almost reaching the level of glassware and metal ware, and their packaging performance price ratio is also better than glass bottles

France Sidel packaging company said it was a technical problem that they solved after more than two years of development and research. The key of this technology is to obtain amorphous carbon from high-temperature plasma and add a very small amount of amorphous carbon into the materials used to make plastic containers. According to the data provided by Olivier manager of the company, the new process can improve the oxygen resistance of the bottle by 29 times and the barrier performance by 6 times. After more than six months of packaging experiments on different beers, it has been proved that its performance indicators are almost the same as those of glass and metal packaging, but the cost is much lower. In the European market, its price is only 78% of glass bottles and 65% of metal cans

PETG Eastman Chemical Company of the United States is one step ahead in the plastic packaging of beer. Its new environmental friendly plastic packaging beer bottle produced by Asahi company has also been put on the market. The wine bottle is sealed and packaged by a material called eastal copolyester film tape, that is, PETG (polyester material modified by glycol). Its shape is silver black, with a black hole ribbon pull ring cover at the neck, which can block light, isolate air, ensure the quality of beer, and has the explosion-proof function of preventing debris from splashing when the bottle is broken, with superior shrinkage performance. Since Asahi adopted this packaging material, Su reused its existing global automotive industry chain to sell perdry and dunk beer, and the sales volume increased significantly

prospect of plastic beer packaging

plastic beer packaging has convinced the majority of manufacturers and consumers with its flexible shape and volume and colorful colors

for beer packaging, compared with glass and metal, plastic has obvious advantages:

first, it can reduce the loss of various beneficial ingredients in beer and prolong the fresh-keeping period of beer

second, plastic packaging is light and safe, not easy to break and explode, and the cost of filling, storage and transportation is significantly lower than that of glass and metal packaging

third, plastic packaging has a high recycling rate, which greatly saves marketing costs, and is conducive to environmental protection and comprehensive utilization of resources

with the more and more extensive application of plastics in the field of beer packaging, today, people are trying to stimulate the market with new shapes and packaging specifications, so that both beer manufacturers and dealers can increase profits. Because except for single-layer plastic bottles, any treatment method will increase the cost and reduce the competitiveness of the packaging. Mr. craigrenton, director of the new product sales department of constar international branch of crounco rk & seal, pointed out: "you must weigh the advantages and disadvantages between using the lightest possible plastic and carrying out post molding treatment." Renton also pointed out that the post-processing technology of molding to increase crystallinity still needs to be improved. Now, Denis of SIPA company has shown people 33 centiliter (about 12 ounces) brown beer bottles at the American beverage packaging conference, indicating the bright future of plastic packaged beer

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