Migration of toluene through different plastic laminated films into food simulants

摘要: Abstract Laminated films are generally prepared from two or more monolayer bonded using adhesives, such that the printing ink and adhesives located between films. Although organic solvents in adhesive, ink, diluter not direct contact with food, they may migrate through under certain conditions, potentially threatening human health. In this study, gas chromatography was used to analyze migration rate of residual toluene laminated into four food simulants, namely isooctane, 50% ethanol, 3% acetic acid, 10% ethanol. The effect different parameters on characterized for internal either low density polyethylene (LDPE) cast polypropylene (CPP). varied markedly temperature, higher temperatures leading accelerated simulants. levels simulants plateaued after a time period. Isooctane simulant which migrated fastest. CPP proved efficient barriers than those LDPE. Within range, increasing initial content had almost no observable its rate.