Security plasticizer

PVC is mainly used in packaging wrap film, which, after adding phthalate soft, high transparency, good self-adhesive. Phthalates past that is relatively safe, in limiting the amount added can be used for a food packaging. However, due to widespread use of plastic products and plastic packaging, as time goes by. Phthalates from plastics and other substances gradually transferred to the external environment. Commonly found in airborne particulates, rivers and soil. Many countries of the atmosphere, lakes, rivers and soils have been detected in different concentrations of phthalates. Japan in the 30 rivers 86 monitoring points detected DEHP, the United Kingdom, China and other scientists are also the atmosphere, rivers and environmental sewage detected DEHP, results show that our environment is subject to different levels of DEHP contamination. Phthalates through the respiratory tract, gastrointestinal tract and skin absorption into the body, so that people from the normal intake of food and water will inevitably be some of DEHP, however, under normal circumstances, the amount of intake is difficult to exceed the safe limit.

In the published research papers on the toxicity of DEHP, the researchers through animal experiments (mainly rodents), in vitro experiments or epidemiological survey methods, gradually prove DEHP cause reproductive system damage, liver toxicity, renal toxicity, it There are some uncorroborated potential hazards, including teratogenicity, carcinogenicity. Given these potential health risks, the EU issued a directive 1999/815/EC, the EU member states use by children under three years of age in contact with the mouth of toys and other children's products (such as baby pacifiers, teething, etc.) in the poly vinyl chloride plastics plasticizer content restrictions, requirements contained six kinds of PVC phthalate plasticizers (DEHP, DINP, DNOP, DBP, DIDP, BBP) the total content shall not exceed 0.1% . As the plasticizer in PVC products generally used in an amount of 2% to 70%, which indicates that plastic toys actually disable the DEHP plasticizer, which is still in development stages in order to protect children.

DEHP there are other potential health risks. The myocardial cells in vitro in soaked in DEHP may cause its rhythm abnormalities. However, in the heart of the body and did not find this phenomenon, said long-term exposure to DEHP may cause arrhythmia lacking basis.