How to rationally view the safety of food plastic

2022-07-31
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How to treat the safety of food plastic packaging rationally since the 20th century, the industrialization and industrialization of synthetic resin have developed rapidly, and plastic packaging materials have also penetrated into our daily life. Due to its advantages of lightness, convenience and good waterproof, it has become the main force of food packaging materials. People's food safety and health have an indissoluble bond with plastic packaging

in recent years, driven by their interests, some undesirable producers have used inferior raw materials or illegal additives for production, making the safety of food packaging come into the public eye again and again. From the plasticizer incident of Baijiu to the toxic PVC fresh-keeping film, the society is afraid of the change of color when talking about plastic

in this regard, the China Plastics Processing Industry Association called for a rational view of the safety of food packaging plastics

how much harm will be caused by the lifting of the ban on disposable foaming tableware

since the return of disposable foaming tableware to the market, the public is most worried about whether it will have an adverse impact on the overseas investment of injection molding machines and modified plastics in the future. Disposable foamed tableware is mainly made of polystyrene, which is non-toxic and harmless, and has excellent health and physical properties. The vast majority of the volume of a polystyrene foam lunch box is air, which saves the most raw materials and is incomparable to other disposable tableware. Disposable foaming tableware has high cost performance and can be recycled. It produces a variety of recycled products. It is a typical lese environmental protection product with obvious energy saving and emission reduction effects. Recycled reprocessed products are widely used in picture frames, photo frames, building insulation materials, office appliances and other products. At present, butane has long been used to replace freon (CFCs) as foaming agent in the production of disposable foamed tableware in China. Therefore, there is no problem that the production process of disposable foamed plastic tableware destroys the atmospheric ozone layer

in february1999, the state included disposable foamed plastic tableware in the catalogue of eliminating backward production capacity, processes and products (the first batch), which was a decision made by the economic and Trade Commission based on the specific environmental conditions at that time. The purpose was to control the white pollution caused by the random discarding of disposable lunch boxes. With the economic development and the improvement of the whole society's awareness of environmental protection, the energy conservation and emission reduction policies have been better implemented, the development of circular economy has achieved remarkable results, the construction of recycling system has made great progress, garbage classification and the strengthening of recycling of renewable resources have been deeply rooted in the hearts of the people, and people realize that plastics themselves are not the source of white pollution. At present, the progress of social civilization is accelerating, and people have overcome the bad habit of random discarding. Waste plastics, as an important part of urban minerals, has become the consensus of the whole society. The realization of circular development has been carried out nationwide, which not only greatly reduces the impact of 6.1.1 on the ecology caused by the light plastic waste of cups with obvious ear making, but also effectively promotes economic development and accelerates the coordinated development of the plastic industry and environmental protection

disposable foaming tableware is still used in many countries, such as the United States, Japan, South Korea, Europe and Taiwan. Disposable foamed plastic tableware produced by some Chinese manufacturers are exported to the United States, Canada, New Zealand, Brazil, Argentina, Iceland, Australia, Denmark, Norway, France, Britain, non-8, non-destructive testing instruments (magnetic particle flaw detector, X-ray flaw detector γ Ray flaw detector, ultrasonic flaw detector, eddy current flaw detector, acoustic emission detector, etc.) more than 20 countries and regions, and enterprises in Zhuhai, Shenzhen, Tianjin and other places export about 6000 tons of disposable foamed plastic tableware annually

whether the foamed lunch box will produce dioxin strong carcinogen when heated

the conditions for dioxin production are: benzene ring containing substances and chlorine bromine containing substances exist at the same time; Temperature C, presence of metal catalyst. The main raw materials of foaming tableware are polystyrene resin, talc powder, hard fatty acid calcium, butane, etc. The production process is directly made of polystyrene resin, butane and other additives, extrusion and foaming. The production process is a physical mixing process without chemical reaction. Although polystyrene is a benzene ring containing compound, the production of foamed plastic tableware is carried out under sealed chlorine free conditions, and there is no condition for dioxin production

plastic containers heated in microwave oven will not produce dioxins. Food packaging films and containers do not contain chemical components that may form dioxins. Dioxins only produce a series of mixtures in the high-temperature combustion chamber. Even if the poor quality packaging contains dioxins, the heating temperature of the microwave oven can not meet the requirements of its volatilization

whether beverage bottles can be recycled

at present, it is rumored that the recycling of beverage bottles will produce harmful substances. Before allowing a food or beverage packaging material to enter the market, FDA (food and Drug Administration) will conduct analysis and research to ensure that it will not cause harm to people. Among them, the mobility evaluation of plastics and their substances is an important part of the research. At present, the largest amount of plastic water bottles are made of pet, which is a lightweight, shatterproof and strictly tested material. According to a large number of tests, FDA allows PET bottles to be used for single or repeated use in beverage packaging. In fact, refillable PET bottles have been frequently used in many countries

whether phthalates and plasticizers are ubiquitous in food packaging

phthalates are the general term of a series of additives, which are used in the production of some plastic products, especially PVC, to increase the flexibility of products. However, food contact packaging is usually made of other plastics without plasticizer. Although some plastic films are made of PVC, adipic acid and citric acid plasticizers are used to replace phthalates. At the same time, it is not ruled out that some unscrupulous businesses use phthalates. Consumers should know how to distinguish and try to buy PE plastic films that are produced under pressure from large manufacturers

experiments in many countries have shown that the safety of plastic packaging is very high, and consumers are urged not to listen to groundless rumors

about the problem that disposable polystyrene foamed plastic tableware will release dimers and trimers when exposed to heat, which will produce environmental hormones (hormones). Foreign countries have published a large number of research results many years ago to clarify the problems related to environmental hormones. For example:

the experiment conducted by the Netherlands Institute for applied scientific research (TNO), an international authoritative organization, in June 1998 showed that the ethanol extract of polystyrene with styrene dimer and trimer as the main components did not have the property of estrogen in a wide range from low dosage to high dosage

the experiment conducted by Japan instant food industry association at Riqing food Central Research Institute in June, 1998 showed that styrene dimer and trimer did not have estrogenic properties

the American Plastics Industry Association (SPI) sampled PS under strict conditions in September, 1998, and conducted estrogen test. The results showed that it did not have estrogen properties

in 1998, European SSC (styrene Steering Committee) conducted estrogen experiments on 23 PS products, and the results showed that they were not found to have estrogenic properties

as the crystallization of the development of science and technology of the times, plastics, a large category of products, are also developing towards high-end. Consumers should treat the safety of plastics rationally. We should also polish our eyes when choosing plastic products, so that inferior products can be eliminated from our side

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