油墨溶剂在食品软包装中的残留及迁移规律

目的研究油墨溶剂在食品软包装材料中的残留及迁移行为,为食品包装生产企业提供安全风险控制方面的参考。方法采用顶空气相色谱-质谱联用(HS-GC-MS)技术,对印刷油墨的挥发性溶剂在食品软包装中的残留进行定性定量分析,以检出率较高的苯类溶剂甲苯、酯类溶剂乙酸丁酯和酮类溶剂丁酮为迁移研究对象,分别以PE,PP,PET/CPP,PET/PE,OPP/CPP,PET/PA/CPP为包装材料,研究油墨溶剂在水性食品模拟液(蒸馏水)、酸性食品模拟液(体积分数为3%的乙酸)、醇性食品模拟液(体积分数为10%的乙醇)和脂肪性模拟液(正己烷)中的迁移残留行为。结果研究表明,印刷后的食品软包装材料中大部分都有苯类、酯类和酮类等有机挥发物的残留,残留溶剂在食品模拟液中迁移量的大小依次为正己烷乙醇(体积分数为10%)乙酸(体积分数为3%)蒸馏水,而且对于不同的包装材料迁移量的大小也不同。结论油墨溶剂在食品软包装材料上的残留和迁移行为,主要与环境温度、食品性质以及包装材料的性能有关。

Residue and Migration of Printing Ink Solvent in Soft Packaging Materials

The work aims to study the residual and migration behaviors of printing ink solvent in flexible packaging materials for food and provide a reference of safety risk control to food package manufacturers. Migration and residue behaviors of ink solvent in aqueous food simulation (distilled water), acidic food simulation liquid acetic acid (3%), alcohol (10% alcohol) and fatty food were studied with benzene solvent toluene, butyl acetate ester solvent and butyl ketone solvents of higher detection rate as migration research objects and with PE, PP, PET/CPP, PET/PE, OPP/CPP, PET/PA/CPP as packaging materials. Studies showed that more flexible packaging materials for food had the residue of benzene, ester and ketone volatiles after printing. In simulation of liquid food migration, general migration amount of n-hexane was >10% ethanol > 3% acetic acid > distilled water. The different packing materials also had different migration amount. In conclusion, ink solvent residues and migration behaviors in the food flexible packaging materials primarily are related to the ambient temperature, food properties, and performance-related packaging materials.