Vinyl chloride monomer in polyvinyl chloride (PVC), chlorobiphenyl (PCB) in paper products, soluble and volatile substances in adhesives, printing ink and harmful heavy metals are listed as restricted materials in food, medicine and product packaging that may contact with children. For example, the vinyl chloride monomer for food packaging materials specified in 78 / 142 / EEC is limited to less than 0.701 mg / kg. In order to avoid risks and strictly inspect and test, most enterprises in EU adopt safe and low-risk material substitution method, such as replacing PVC with pet and PS with PP. From the current development trend, PVC may completely withdraw from the packaging market.
In foreign countries, such as the European Union, PVC has gradually withdrawn from the packaging of some products. However, due to the good mechanical and physical properties of PVC, its total production has not decreased, such as turning to building materials industry, China also has the same trend. At present, although there is no uniform and clear restriction on PS in EU, the harmful effect of styrene monomer is clear. Moreover, PS is easy to produce odor at room temperature or needs to be heated, which is regarded as an unpopular product in some applications. It is feasible to replace PS with PP.
A large amount of packaging paper is disposable. In order to avoid the pollution of PCBs to water source, the European Union generally uses the bleached pulp made by oxidation process. According to statistics, in Europe, the output of bleached pulp made by oxidation process has exceeded 60%, and the amount of packaging paper accounts for 60% of the total paper output.
For more information on packaging materials, please refer to the official website of Beite packaging. www.dgbpk.com