2024-08-13
It is understood that China's plastic food packaging industry has become an indispensable industry in the national economy after more than 30 years of development. Although public opinion at home and abroad this year generally believes that plastic food packaging bags bring all kinds of adverse effects on the health and environment of consumers, and constantly call for a large number of paper food packaging bags to be widely used, however, the consumption of plastic food packaging materials is still increasing rapidly. The intention of the development of plastic food packaging materials is to solve the problem of moisture, mold, deterioration and other problems caused by all kinds of food due to no packaging or poor packaging, but for some reasons, often appear when consumers open the food packaging bag, smell the strange smell or even odor in the food packaging bag. This has led to many contradictions and disputes between consumers and food factories, food factories and food packaging bag manufacturers, packaging factories and raw material suppliers.
A large number of organic solvents, such as toluene, ethyl acetate and butyl ketone, are used in the gravure printing and solvent-based dry composite process of plastic composites. According to the process requirements, these solvents should be volatilized in the production process, but in the actual production process, due to various reasons, there will always be more or less of the solvent is not completely volatilized, that is, the so-called "residual solvent", "residual solvent" is generally a mixture of several solvents, when the content of "residual solvent" is lower than a certain value, the human sense of smell will not feel its existence. It will not affect the taste of the packaged food. When the content of "residual solvent" is greater than a certain value, the human sense of smell can sense its existence, when the consumer opens the high "residual solvent" food packaging bag, it may smell different from the food mold, rotten "odor".
From the equipment and technology to solve the problem of food packaging bags have odor, in the food packaging bag production workshop using solvent-free compounding machine, to solve the problem of solvent residue, packaging bags tasteless, pollution-free, inside the food let you rest assured, so that consumers peace of mind. It has won a good reputation for customers in the food industry.