The hottest plastic packaging substitute for glass

Plastic packaging instead of glass bottles is trapped in the technical bottleneck

according to the China Association of canning industry, cans in the domestic market, mainly in bulky glass bottles and tinplate packaging that are difficult to open, are gradually replaced by plastic soft wrapped cans with small packaging, easy to carry and easy to open in foreign developed countries, which are favored by consumers, and quickly occupy nearly 30% of the canned packaging market in just a few years. The relevant person in charge of the China canning industry association said that in China, the main factor that hinders plastic packaging from making a big impact in the field of Canning is price. 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 the bottle mouth, the degree of pressure resistance, anti penetration and other aspects of the impact on beer quality are still being explored, so domestic enterprises are still in the wait-and-see and experimental stage

realizing the localized procurement of packaged products is an inevitable way for canning manufacturers to reduce costs, while the mechanical properties of adult toothbrushes, children's toothbrushes and children's toothbrushes are tested by domestic products according to product specifications, but there are common problems such as short shelf life, poor toughness and explosive bags. According to the data, the import price of plastic composite flexible packaging products that meet the requirements is about 5 yuan/piece, and cans with flexible packaging are also 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 processes, 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 strong barrier. For some foods that need high-temperature sterilization, they also need to have good high-temperature resistance. What should we pay attention to when using the cold and heat shock test box? Performance, with the same high transparency as glass, so that consumers can directly see the product. The plastic composite flexible packaging products that can meet the above requirements are expensive

in addition, in the beer industry, pet plastic bottles are being developed all over the world as alternative products. Beer packaging requires better freshness and oxygen barrier, and a 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 is not more than 5%. PET 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. Various packaging specifications and styles are in demand. For example, in the summer of 2000, "bagged" beer, as a supporting product of barreled beer, was widely welcomed in Qingdao. When customers come to buy beer, they pack it directly 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, such as depositing 5 ~ 10nm thick graphene oxide films on glass substrates

according to experts, glass bottles have poor stability, are fragile, are not conducive to transportation, and have large energy consumption. Plastic packaging instead of glass packaging is an inevitable trend for the packaging industry to develop towards lightness and durability. Compared with plastic hard packaging, plastic soft packaging is lighter, softer, less waste, takes up less space, costs less, and saves resources, so it is more competitive. The composite flexible plastic packaging materials have developed rapidly with their superior comprehensive performance. By the end of 2002, there were more than 4000 flexible plastic packaging enterprises in China, and the domestic production capacity of composite film has exceeded 1.5 million tons. The composite flexible plastic packaging materials have become one of the more mature main packaging materials in China, and have infiltrated into all fields of national life to build a good environment for industrial development. In these fields dominated by glass packaging, plastic flexible packaging has emerged and is waiting to show its talents. With the development of plastic raw materials and processing technology, plastic has occupied an important position in the field of packaging, 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 lightweight and beautiful plastic flexible packaging to enter this part of the market on a large scale