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        2. The Hazards Of Plastic Wrap

          Jun 13, 2024 Leave a message

          The latest test shows that 15 of the 16 brands of PVC cling film commonly seen in the Beijing, Shanghai and Guangzhou markets contain the plasticizer DEHA, which is banned by the country. This plasticizer can penetrate from the cling film into the high-fat food packaged at room temperature, causing great harm to the human endocrine system.
          Causes infertility
          Food safety expert Dong Jinshi told reporters that the plasticizers allowed by the country are generally relatively stable at room temperature, but the DEHA banned by the country can be released from the cling film and penetrate into the food at room temperature, especially when packaging foods with high fat content. The main hazard of this plasticizer is that it affects the human endocrine system, leading to increased secretion of estrogen and decreased secretion of androgen, that is, precocious puberty in women and infertility in men, especially having a great impact on the genital development of infants and young children.
          Exceeding the standard of harm
          As early as 2005, the General Administration of Quality Supervision, Inspection and Quarantine issued an announcement emphasizing that enterprises are prohibited from using plasticizer DEHA to produce food cling film. Beijing Kaifa Environmental Protection Technology Consulting Center purchased all brands of PVC cling film sold on the market from Beijing, Shanghai and Guangzhou, a total of 16 brands, and sent them to the national testing agency. The test results were shocking - 15 types of cling film contained DEHA, which is expressly prohibited by the state. Among them, the lowest exceeded the detection line by 98 times, the highest exceeded the detection line by 472 times, and the average exceeded the detection line by more than 200 times.
          Industry fog
          Among the 16 brands of PVC cling film, 15 contained the plasticizer DEHA, which is banned by the state. The reporter's months-long investigation found that the PVC cling film production industry was shrouded in multiple layers of fog, and behind the fog was a lie involving the cling film industry and its upstream chemical industry.
          According to the official announcement of the General Administration of Quality Supervision, Inspection and Quarantine, the plasticizer allowed to be added during the production process of PVC cling film is DOA. The reporter's investigation in Beijing, Shanghai, Jiangsu and other places also found that the raw materials used by four cling film production companies that were detected to contain plasticizers banned by the state were indeed labeled as DOA. During the interview in Jiangsu, we saw the same company's DOA raw material barrels in the production workshops of Wuxi Xindi Paper and Plastic Products Co., Ltd. and Taicang Junshijie Packaging Materials Co., Ltd., and the raw material barrels were marked with Tongxiang Chemical Co., Ltd. production.
          At Tongxiang Chemical Co., Ltd., Xu Xiaofeng, the business manager of the company's marketing department, said that Wuxi Xindi, Shanghai Junshi and Lin Parker and other cling film companies are exclusively supplied with plasticizers by the company. At the same time, he also admitted that the DOA they provided did contain DEHA, which was unavoidable in every plasticizer production factory.
          In order to verify whether what Manager Xu said was true, the reporter tested the DOA samples provided by Tongxiang Chemical Co., Ltd. and the samples of another DOA production company. The results showed that the DOA produced by these two companies did not contain DOA, but the content of DEHA was very high. It turned out that the so-called DOA was actually DEHA.
          According to experts, the raw material for producing DOA is n-octanol, and the raw material for producing DEHA is isooctyl alcohol. The prices of these two raw materials differ greatly. The price of n-octanol per ton is about 12,000 yuan, while the price of iso-octanol per ton is only about 8,000 yuan. In order to reduce costs, enterprises use iso-octanol as raw material for production. This statement was also recognized by Xu Xiaofeng, business manager of the marketing department of Tongxiang Chemical Co., Ltd. He said that in order to cope with fierce market competition, the industry is using iso-octanol to produce plasticizers for cling film.
          So far, the source of the national banned plasticizer DEHA contained in 15 brands of PVC cling film has finally been revealed. According to the provisions of the General Administration of Quality Supervision, Inspection and Quarantine and relevant national standards, the main plasticizer allowed for PVC cling film is DOA, and the raw material of DOA is n-octanol. In order to reduce costs, upstream chemical companies that produce DOA use iso-octanol, and what they actually produce is DEHA, which is banned by the state. Upstream chemical companies then sell DEHA to cling film manufacturers in the name of DOA, and eventually produce cling film that is more harmful to human health.
          Lack of national standards
          As early as 2005, the General Administration of Quality Supervision, Inspection and Quarantine issued a special document to ban the use of DEHA. In 2011, an agency found that PVC cling film of 5 companies contained DEHA. Subsequently, the media exposed it and law enforcement departments investigated and dealt with it. However, in 2013, the products of the 5 PVC cling film companies that had been in trouble were still found to contain DEHA in the test.
          In the view of food safety expert Dong Jinshi, this is some cling film manufacturers knowingly committing crimes. Although they knew that plasticizers contained DEHA, they reached a tacit understanding with upstream chemical companies and still purchased this cheap plasticizer in the name of DOA.
          The reason behind the companies knowingly committing crimes is the lack of standards. As an important food packaging material, PVC cling film has never had a national standard. The biggest advantage of not having a national standard is that companies can choose their own standards, thereby avoiding the detection of plasticizers banned by the country and the restrictions that national standards may impose on the scope of use.
          Food safety expert Dong Jinshi said that the relevant agency had drafted a standard for self-adhesive cling film in 2009, covering PE, PVC and other cling film types. The national standard for cling film, which was supposed to take effect on December 1, 2009, was postponed twice for various reasons and is still sleeping in the file cabinet.
          How to identify
          PVC cling film has stronger transparency, stretchability and viscosity than PE cling film. When PVC cling film is burned with fire, the flame is black, black smoke is emitted, there is a pungent smell, it will not drip oil, and it will automatically go out after leaving the fire source. When PE cling film burns, the flame is yellow, odorless, will drip oil, and can continue to burn after leaving the fire source. If it is marked as PVC material or the marking is unknown, consumers are advised not to buy and use it.

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