主要(yao)毒性物(wu)(wu)質：苯被公認為致癌物(wu)(wu)質，但苯類是(shi)樹脂材(cai)料(liao)(liao)的(de)良好溶(rong)劑(ji)(ji)，它具(ju)有(you)溶(rong)解性強，揮(hui)發速(su)度快，價格便宜(yi)等(deng)優點，因此被廣泛(fan)用(yong)于樹脂的(de)溶(rong)劑(ji)(ji)。在包裝(zhuang)中(zhong)(zhong)主要(yao)用(yong)于復合包裝(zhuang)材(cai)料(liao)(liao)粘和(he)劑(ji)(ji)和(he)塑料(liao)(liao)印刷(shua)油墨的(de)溶(rong)劑(ji)(ji)。由于在復合材(cai)料(liao)(liao)和(he)塑料(liao)(liao)印刷(shua)過程(cheng)中(zhong)(zhong)苯類溶(rong)劑(ji)(ji)揮(hui)發不(bu)完全，包裝(zhuang)材(cai)料(liao)(liao)或容器生(sheng)產設(she)備比較(jiao)簡陋時有(you)可(ke)能造成苯類物(wu)(wu)質在包裝(zhuang)材(cai)料(liao)(liao)中(zhong)(zhong)殘留。食(shi)(shi)品(pin)包裝(zhuang)設(she)計過程(cheng)中(zhong)(zhong)苯類物(wu)(wu)質滲透到食(shi)(shi)品(pin)中(zhong)(zhong)，會導(dao)致食(shi)(shi)品(pin)中(zhong)(zhong)含有(you)苯。