主要毒性物質(zhi)：苯(ben)(ben)被公認為致癌物質(zhi)，但苯(ben)(ben)類(lei)(lei)(lei)是樹脂材(cai)(cai)料(liao)的良好溶(rong)(rong)(rong)劑，它具(ju)有溶(rong)(rong)(rong)解性強(qiang)，揮發速度(du)快，價格便宜等優點，因(yin)此(ci)被廣泛(fan)用(yong)(yong)于(yu)樹脂的溶(rong)(rong)(rong)劑。在包(bao)裝(zhuang)中(zhong)(zhong)主要用(yong)(yong)于(yu)復合(he)包(bao)裝(zhuang)材(cai)(cai)料(liao)粘和劑和塑料(liao)印刷油墨的溶(rong)(rong)(rong)劑。由于(yu)在復合(he)材(cai)(cai)料(liao)和塑料(liao)印刷過(guo)(guo)程中(zhong)(zhong)苯(ben)(ben)類(lei)(lei)(lei)溶(rong)(rong)(rong)劑揮發不(bu)完全，包(bao)裝(zhuang)材(cai)(cai)料(liao)或容器(qi)生產設備比較簡(jian)陋時有可能(neng)造成苯(ben)(ben)類(lei)(lei)(lei)物質(zhi)在包(bao)裝(zhuang)材(cai)(cai)料(liao)中(zhong)(zhong)殘留。食(shi)品(pin)包(bao)裝(zhuang)設計過(guo)(guo)程中(zhong)(zhong)苯(ben)(ben)類(lei)(lei)(lei)物質(zhi)滲透到食(shi)品(pin)中(zhong)(zhong)，會導致食(shi)品(pin)中(zhong)(zhong)含有苯(ben)(ben)。