主要毒性(xing)物(wu)(wu)質(zhi)：苯(ben)被公(gong)認為致癌物(wu)(wu)質(zhi)，但苯(ben)類(lei)(lei)是樹脂(zhi)材(cai)料(liao)的(de)良好溶(rong)劑，它具(ju)有溶(rong)解性(xing)強，揮發速度快，價格(ge)便(bian)宜(yi)等優點，因此被廣泛(fan)用于(yu)(yu)樹脂(zhi)的(de)溶(rong)劑。在(zai)包(bao)(bao)裝中(zhong)(zhong)(zhong)主要用于(yu)(yu)復合包(bao)(bao)裝材(cai)料(liao)粘和(he)劑和(he)塑料(liao)印刷油墨的(de)溶(rong)劑。由(you)于(yu)(yu)在(zai)復合材(cai)料(liao)和(he)塑料(liao)印刷過程(cheng)中(zhong)(zhong)(zhong)苯(ben)類(lei)(lei)溶(rong)劑揮發不完(wan)全，包(bao)(bao)裝材(cai)料(liao)或(huo)容器(qi)生(sheng)產設備比(bi)較簡(jian)陋時有可能造成苯(ben)類(lei)(lei)物(wu)(wu)質(zhi)在(zai)包(bao)(bao)裝材(cai)料(liao)中(zhong)(zhong)(zhong)殘(can)留(liu)。食品包(bao)(bao)裝設計過程(cheng)中(zhong)(zhong)(zhong)苯(ben)類(lei)(lei)物(wu)(wu)質(zhi)滲透到(dao)食品中(zhong)(zhong)(zhong)，會導(dao)致食品中(zhong)(zhong)(zhong)含(han)有苯(ben)。