Main food packaging materials and their risks

Food packaging materials packaging, canned food or food additive with the paper, bamboo, wood, metal, porcelain enamel, ceramic, plastic, rubber, natural fiber and chemical fiber, glass and other products and direct contact with food or food additive coatings. Due to the direct contact with food, food packaging materials 'food safety law' article 33 regulation: & other; （ 7) Ready-to-eat foods should use avirulent, clean packaging materials, tableware, kitchenware, and containers. ” Must ensure the safety of the packaging material itself, therefore, nontoxic and non volatile substances produced, at the same time, in the packaging process of the implementation of the process, also won't react with food composition of material and chemical composition. Because of the complexity of the packaging materials, precipitation of substances in food packaging materials, in food, may be due to these substances migration to the food, or extracted by accident occurred in the food. Such chemical migration caused food packaging have also had a negative impact on food. Mainly for two aspects: on the one hand, the harmful material in synthetic packaging materials migration to cause damage to the health food, on the other hand the migration substances may cause deterioration of food sensory state, if any, odor, color distortion and stained, etc. Modern food packaging material by a large number of chemical synthesis, generally can be divided into two categories: the ingredients known and unknown components. These substances include: monomer of synthetic materials and other composite material, catalyst, solvent and additive in suspension medium, packaging materials, Including antioxidants, antistatic agent, anti mist, plasticizer, heat stabilizer, nucleating agent and dye and pigment) 。 Mainly in food packaging material and its risk potential risk plastic resin itself is toxic, cracking and aging residual toxic monomer in toxic substances produced by the products of stabilizer is added in the manufacturing process, packaging containers, such as plasticizer, colorant microorganism and dust pollution of impurities on the surface of the plastic recycling material recycle of some pollutants and add pigment in the rubber, natural rubber additives such as: promoting agent, protective agent, filling agent, such as synthetic rubber in the monomer and additives paper papermaking raw materials added in the process of pollutants in the papermaking additives residual paper coated with in la, fluorescent whitening chemical pollution in the process of color pigment pollution microorganism and inorganic contaminants on the surface of the finished paper packaging materials metal pollution of heavy metals in packaging materials, especially in the lead recycling aluminum zinc, arsenic, cadmium and other metal dissolution of glassware, soluble metal additives in high-grade glass enamel, ceramic porcelain glaze, in the process of making the metal oxide ceramic glaze and glaze
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