主要(yao)毒性物質：苯(ben)(ben)被公認為致癌物質，但苯(ben)(ben)類(lei)是樹脂(zhi)(zhi)材料(liao)(liao)(liao)的(de)良好溶(rong)(rong)(rong)劑(ji)(ji)，它(ta)具有(you)溶(rong)(rong)(rong)解(jie)性強，揮發速度快，價格便宜等優點，因此被廣泛用(yong)于(yu)樹脂(zhi)(zhi)的(de)溶(rong)(rong)(rong)劑(ji)(ji)。在包(bao)裝(zhuang)中(zhong)(zhong)主要(yao)用(yong)于(yu)復合包(bao)裝(zhuang)材料(liao)(liao)(liao)粘和劑(ji)(ji)和塑(su)料(liao)(liao)(liao)印刷(shua)油墨(mo)的(de)溶(rong)(rong)(rong)劑(ji)(ji)。由于(yu)在復合材料(liao)(liao)(liao)和塑(su)料(liao)(liao)(liao)印刷(shua)過(guo)程中(zhong)(zhong)苯(ben)(ben)類(lei)溶(rong)(rong)(rong)劑(ji)(ji)揮發不完全，包(bao)裝(zhuang)材料(liao)(liao)(liao)或容器(qi)生產(chan)設備比(bi)較簡陋時有(you)可能造成(cheng)苯(ben)(ben)類(lei)物質在包(bao)裝(zhuang)材料(liao)(liao)(liao)中(zhong)(zhong)殘留。食(shi)品(pin)(pin)包(bao)裝(zhuang)設計過(guo)程中(zhong)(zhong)苯(ben)(ben)類(lei)物質滲透(tou)到食(shi)品(pin)(pin)中(zhong)(zhong)，會導(dao)致食(shi)品(pin)(pin)中(zhong)(zhong)含有(you)苯(ben)(ben)。