主(zhu)要(yao)毒性物質(zhi):苯被公(gong)認為致(zhi)癌物質(zhi),但苯類是樹(shu)脂材料(liao)(liao)的(de)良好(hao)溶劑(ji),它(ta)具有溶解性強,揮發速(su)度快,價格便宜等優點,因此被廣泛用于樹(shu)脂的(de)溶劑(ji)。在包(bao)(bao)(bao)(bao)裝中(zhong)(zhong)主(zhu)要(yao)用于復合(he)包(bao)(bao)(bao)(bao)裝材料(liao)(liao)粘和(he)劑(ji)和(he)塑料(liao)(liao)印刷油墨的(de)溶劑(ji)。由于在復合(he)材料(liao)(liao)和(he)塑料(liao)(liao)印刷過程(cheng)中(zhong)(zhong)苯類溶劑(ji)揮發不完全,包(bao)(bao)(bao)(bao)裝材料(liao)(liao)或(huo)容器生產設備比較簡陋時有可能造(zao)成苯類物質(zhi)在包(bao)(bao)(bao)(bao)裝材料(liao)(liao)中(zhong)(zhong)殘留。食(shi)(shi)品包(bao)(bao)(bao)(bao)裝設計過程(cheng)中(zhong)(zhong)苯類物質(zhi)滲透(tou)到食(shi)(shi)品中(zhong)(zhong),會導致(zhi)食(shi)(shi)品中(zhong)(zhong)含有苯。
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