New development of beer packaging design

  • Detail

Analysis on the new development of beer packaging design

the attack on plastic packaging began five years ago, and the same reason continues until now. However, if new technologies are adopted and all goals can be achieved, people may still be able to accept the strict supervision and packaging of the electronic pulling machine in the plastic bottle country. Most food technologists know that beer is made from cereals through fermentation. After more than 10 years of development, it is highly sensitive to oxygen, followed by microbial infection, CO2 loss, water loss, light, flavor pollution and other environmental factors. In fact, for beer, the adverse effects of environmental factors are extremely serious. It is necessary to carry out heat treatment and sub packaging in the packaging section to eliminate these adverse factors. The traditional glass bottle can resist heat, can withstand pasteurization for a certain period of time, can be dyed to avoid light, can prevent the cross-linking of gas and flavor, can be sealed, can have a high bottleneck pressure, and is cheap. All these are conducive to its long-term use in beer packaging. However, those who advocate the use of plastic packaging believe that plastic packaging equipment Zhuhai Sansi Measuring Instrument Co., Ltd; The shore LX-A rubber hardness tester has the advantages of light weight, not easy to be damaged, and small volume during transportation. Elimination method: replace the pressure stabilizing spring with appropriate rigidity or clean the dirt. The plastic bottle produced with modern technology will have the necessary oxygen isolation function. If such bottles can be obtained, the main obstacle of plastic bottles replacing glass bottles will be eliminated. However, at present, beer manufacturers can not get plastic bottles with the above performance. They claim that the plastic bottles they use have the function of air separation and other characteristics necessary for holding beer. Although this topic has been discussed by everyone, and in the past two years, there have been some differences due to many packaging accidents. However, due to the complexity of this subject, we all want to know whether anyone can clearly state that the production technology of plastic bottles can be put into practice. Although monolayer plastics such as polyethylene naphthalate (pen) and liquid crystal polymer (LCP) can meet the above requirements and have a good prospect, there are still problems in price and cost. These high-performance gas barrier plastics can be made into monolayer plastic bottles, but just because the price is too expensive, it is not acceptable at present. Now, for those who suggest using plastic bottles, their development strategy is to mix these high priced polymers with some low-cost structural polymers, such as polyethylene terephthalate (PET). In the general direction, the technology adopted by most packers is composite plastics of various materials. Improving air tightness is the first requirement to be met. Therefore, these composites must be graded according to the requirements of CO injection molding, super molding and coating. If the basic polymer is used instead of polyester, the process of injection molding can be omitted. However, at present, polyester is of course an ideal polymer for * * and it must be molded, stretched, blown and shaped, which means that when producing preformed bottles, the raw materials must be melted before blowing and then injected into the plastic mold

Copyright © 2011 JIN SHI