Technical breakthrough of replacing glass bottles

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Technical breakthrough of plastic packaging replacing glass bottles needs more work

it is learned from relevant departments that in the domestic market, cans mainly packed in bulky glass bottles and tinplate that are difficult to open are gradually replaced by plastic soft packed cans that are small, easy to carry and easy to open in foreign developed countries, and are favored by consumers. In just a few years, they have quickly occupied nearly 30% of the canned packaging market. It is understood that at present, the price is the main factor that hinders the plastic packaging from showing its full strength in the field of canned food in China. In addition, compared with canned packaging, beer packaging requires better freshness preservation and oxygen barrier. However, at present, due to the fact that the technology is not yet fully mature, such as the sealing of bottle mouth, pressure resistance and anti permeability, the impact on beer quality is still being explored. Therefore, domestic enterprises are still in the experimental stage of watching and improving the quality management level and product quality level of new material enterprises

localized purchase of packaging products is an inevitable way for canning manufacturers to reduce costs, while domestic products generally have problems such as short shelf life, poor toughness and explosive bags. The data shows that the import price of the plastic composite flexible packaging products that meet the requirements is about 5 yuan/piece, and the cans with flexible packaging are mainly used for export. In fact, small plastic packaging will have good market development potential. In China's canned packaging market, glass bottles and metal cans will firmly occupy the dominant position. Of course, in recent years, with the development of flexible packaging materials and technology, flexible packaging cans also began to appear sporadically, but the market share is very small. The shelf life of canned food generally reaches about one year, so the outer packaging is required to have a strong barrier. For some foods requiring high-temperature sterilization, they should also have good high-temperature resistance and high transparency like glass, so that consumers can directly see the products. The plastic composite flexible packaging products that can meet the above requirements are expensive

in addition, in the beer industry, the world is focusing on developing pet plastic bottles as alternative products. Beer packaging requires better freshness preservation, oxygen barrier and certain pressure bearing capacity, but the technical bottleneck has not been broken through

although there are also cans and barrels in the market, the total amount does not exceed 5%. Pei bottles, flexible packaging and other plastic packaging forms came into being. With the diversified development of consumer demand, beer packaging is also closer to consumer demand, and tends to be packaging products that can effectively maintain the stability of beer quality, low price and various forms. There are demands for various packaging specifications and styles. For example, in the summer of 2005, bagged beer was widely welcomed in Qingdao as a supporting product for barreled beer with full LCD numerical control to set the required parameters. When customers come to buy beer, the precision of the extruder can improve the gold content of the product, which can be packed in plastic bags. It can be predicted that if plastic flexible packaging or PET bottles are used to replace glass bottles, it will be easier to meet the different needs of consumers in terms of capacity and shape

according to experts, glass bottles have poor stability, are fragile, are not conducive to transportation and consume a lot of energy. It is an inevitable trend for the packaging industry to develop towards lightness and durability that plastic packaging replaces glass packaging. Compared with plastic hard packaging, plastic soft packaging is more competitive because of its light weight, softness, less waste, small space occupation, low cost and resource saving. The composite flexible plastic packaging materials have developed rapidly with their superior comprehensive performance. By the end of 2004, there were more than 5000 flexible plastic packaging enterprises in China, and the domestic production capacity of composite film has exceeded 1.9 million tons. The composite flexible plastic packaging materials have become one of the more mature main packaging materials in China, and have penetrated into all fields of national life. In the field of glass packaging dominating the world, plastic flexible packaging has emerged and is waiting to show its talents. With the development of plastic raw materials and processing technology, start the oil pump to adjust the pointer to zero. Plastic has played an important role in the packaging field, and all kinds of plastic packaging have also taken the lead in plastic products. Nevertheless, in some special fields, glass packaging is still in the dominant position, and it will take time for light and beautiful plastic flexible packaging to enter this part of the market on a large scale

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