The safety of food packaging

Food packaging hygiene standard content is imperfect

( 1) Health food packaging materials have no unified standard at present domestic not formulate unified, standardized performance of health food packaging materials, and only in a small number of products in the standard rules, such as flexible packaging of the GB/T10004 & ndash; 2008 packing plastic composite film, bag, dry compound extrusion compound, 'indicators of solvent residue in the corresponding provisions.

（ 2) Most of the hygiene standards of food packaging material is not applicable at present more and more kinds of food packaging. For solvent residues detection, different countries on the targets of its provisions. In the GB/T10004 & ndash; 2008 packing plastic composite film, bag, dry compound extrusion compound, 'the main provisions in the standard solvent residual amount is not more than 5 mg/m2, but did not specify what kind of solvent, in the range of 5 mg/m2 all sorts of solvent quantity also do not make more detailed division. National health standard also ban on using waste plastic as raw material production of plastic food containers. But there is also greater concealment of the harm, is made of industrial raw material plastic food containers. For plastic container standard index limit too loose, the national standard committee is currently working on to update and improve the standard work.

　　（ 3) Most packaging materials product standards are not only the part to the requirement of solvent residues detection standard description of some simple sensory indexes, such as packing material must not have peculiar smell, packing the soaking liquid can not have peculiar smell, etc. , but there is no specific quantitative indicators requirements are put forward. The food packaging in the process of production and inevitable exists residual solvents. In gravure printing plastic composite material and solvent dry compound process, need to use a lot of organic solvent such as toluene, ethyl acetate and ethyl ketone, etc. , in accordance with the requirements of the process of the solvent in the process of production should be evaporate, but for various reasons in the actual production there will always be more or less is not completely volatile solvent, known as the residual solvents. Residual solvents is a combination of several kinds of solvent, usually when the content of residual solvents below a certain threshold value people's sense of smell can't feel its existence, but high solvent residue people senses can perceive. Such as PVC ( PVC) Plastic wrap to cancer has caused strong repercussions in the domestic. 《GB9681— 1988 food packaging PVC molding product health standard 'in specific provision, vinyl chloride monomer content is less than or equal to 1 mg per kilogram. A vinyl chloride monomer composition is contained in PVC cling film, after it is contributing to the human body have carcinogenicity. The European Union and the United States, Japan, have banned this product used for food. Updated several times, but mostly to make some of these parameters change. “ Cling film events & throughout; Once again exposed the our country's relevant standards issued the work lag. So food packaging material to solvent residues detection to develop a quantitative index is imperative.