主(zhu)要毒(du)性(xing)物質(zhi)(zhi)：苯(ben)(ben)被(bei)公認為致(zhi)(zhi)癌物質(zhi)(zhi)，但苯(ben)(ben)類是樹脂材料(liao)的良好溶(rong)(rong)劑，它具有(you)溶(rong)(rong)解性(xing)強，揮發速度快，價(jia)格便宜等(deng)優點(dian)，因(yin)此被(bei)廣泛用(yong)于樹脂的溶(rong)(rong)劑。在包(bao)裝(zhuang)中(zhong)(zhong)主(zhu)要用(yong)于復合包(bao)裝(zhuang)材料(liao)粘(zhan)和劑和塑(su)料(liao)印刷(shua)(shua)油墨的溶(rong)(rong)劑。由(you)于在復合材料(liao)和塑(su)料(liao)印刷(shua)(shua)過程中(zhong)(zhong)苯(ben)(ben)類溶(rong)(rong)劑揮發不(bu)完全，包(bao)裝(zhuang)材料(liao)或(huo)容器生產設備比較簡陋時有(you)可能造成苯(ben)(ben)類物質(zhi)(zhi)在包(bao)裝(zhuang)材料(liao)中(zhong)(zhong)殘留。食品包(bao)裝(zhuang)設計(ji)過程中(zhong)(zhong)苯(ben)(ben)類物質(zhi)(zhi)滲透到食品中(zhong)(zhong)，會導(dao)致(zhi)(zhi)食品中(zhong)(zhong)含有(you)苯(ben)(ben)。