ОТДЕЛЕНИЕ ПЛАСТИКА И ЭЛАСТОМЕРОВ ОТ ПИЩЕВЫХ И ФАРМАЦЕВТИЧЕСКИХ ПРОДУКТОВ

摘要

Contaminants in food or pharmaceuticals derived from the handling equipment are detected by known detection devices in product flow by the method of detecting particulate magnetic mineral dispersed in the handling equipment or the film used to wrap the food. The minerals magnetic field is detected and the signal generated thereby causes rejection of the product which contains the contamination. A method of making moulded parts of the handling equipment and wrapping film by incorporation of ferrimagnetic ceramic fillers is disclosed. Compositions for moulding and film extrusion with 10-50% of magnetite and other magnetic fillers with a size range of 0.5-20mu are disclosed.