The peculiar smell of the cake for dessert food sack before acceptance testing

Why packaging is used to detect the odor: sometimes, cake for dessert food manufacturers will have the use of packaging has great smell, the smell smells like the smell of paint, gasoline, or other chemical reagent. Because of the peculiar smell of the risk of migration to cake dessert in food causes pastry can't eat. Generally speaking, produce peculiar smell pastry bags for packaging material itself an excessive amount of chemical solvent residue. To produce dry after legally in China plastic composite film bags of solvent residual amount shall not be greater than 5. 0 mg/m2, of which the benzene class material may not be checked out. So 'solvent residue' is the key of the cakes packaging monitoring health chemical performance indicators. Sometimes, excessive residual flux and peculiar smell and can't easily smell, is necessary to do test. Cake for dessert packed in plastic bags, liable to occur in the production process of pungent odor, even migrated to cakes, pastry quality and safety. More this kind of situation due to the use of plastic bags or dilution in the process of composite adhesives, caused by the organic solvent ink printing usually adopt gas chromatograph for packaging material solvent residue detection. Test items: packaging solvent residual test USES equipment: gas chromatograph ( Most of domestic testing plastic packaging solvent residual follow GB/T 10004 - 2008 'plastic composite film, bag, dry compound extrusion compound,' the national standard) Bags odor detection results analysis: 1, the test samples and some kind of plastic packaging bags of cake, have peculiar smell. 2, test data, the amount of solvent residual plastic bags samples for 7. 69 mg/m2, of which the benzene solvents to 0. 13mg/m2（ It is more than 0. 01 mg/m2 of the detection limit, deemed to have checked out) , the test results between parallel sample relative deviation is less than 5%. 3, result analysis, plastic compound bag packaging pastry appear the cause of the peculiar smell, is due to the amount of solvent residual plastic bags for more than 5 gb. 0 mg/m2, and benzene solvent exceeds bid badly. Pastry plastic composite film is only a typical representative of all kinds of packaging materials, other aluminum-plastic composite membrane, such as meat, milk powder aluminized composite film, tobacco film odor detection such as all can follow this test method.