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Three types of commonly used food packaging films-technical knowledge

by:POLYVA     2021-12-21
Three sources of commonly used food packaging films: protective film factory direct sales Release time: 2019-10-16 Hits: 1215 1. PET moisture-permeable waterproof film has the advantages of being light and thin, good elongation, better processability, and not easy to yellow , Non-porous feature, no clogging problem, and the service life of moisture permeability can reach more than 10 years. And it can be recycled and melted into renewable materials, reducing the burden on the environment without sacrificing function, quality, and design. This is a rare additional benefit. The ecological cycle of consumer products also brings competitiveness to this material. 2. PTFE moisture-permeable waterproof film has a significant impact on the environment. One of the raw materials used in the production of polytetrafluoroethylene, perfluorooctanoate (PFOA), has a carcinogenic effect. The film of this component cannot be decomposed, and it needs to be burned above 350℃ to melt, and the eroded material can kill birds and cause people to produce flu-like symptoms. Under the environmental protection policy, the utilization rate of such products is gradually restricted by developed countries. With hydrophobic materials, when the user wears for a long time, condensation will occur in the inner layer of the clothing, which will cause discomfort to the user. 3. TPU moisture-permeable waterproof film is a non-porous film with a hydrophilic base. It has good processability, but it is still slightly inferior to polyester film. The product has been produced by many manufacturers in mainland China, and its profit and future are the same as that of the year Compared with that, it has declined a lot. Foshan Bowei Environmental Protection Material Co., Ltd. is an electronic material supplier with 20 years of experience. It can produce PET film with multiple functions, such as: sub-(matte) PET film, flame-retardant (fire-resistant) PET film, inkjet printing Film, anti-static PET film, anti-fog PET film, anti-UV PET film, non-shrinking PET film, PET release film, optical PET film, etc. Interested parties welcome to inquire!
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