主(zhu)要毒(du)性物(wu)質(zhi)(zhi)：苯(ben)被公認為致癌(ai)物(wu)質(zhi)(zhi)，但苯(ben)類是樹脂材(cai)(cai)(cai)料(liao)的良好溶(rong)劑(ji)，它具有(you)(you)溶(rong)解性強，揮(hui)發速度快(kuai)，價格便宜(yi)等(deng)優點，因此被廣泛用于(yu)樹脂的溶(rong)劑(ji)。在(zai)(zai)包裝中(zhong)(zhong)主(zhu)要用于(yu)復合(he)包裝材(cai)(cai)(cai)料(liao)粘(zhan)和劑(ji)和塑(su)料(liao)印刷油墨的溶(rong)劑(ji)。由(you)于(yu)在(zai)(zai)復合(he)材(cai)(cai)(cai)料(liao)和塑(su)料(liao)印刷過(guo)程(cheng)中(zhong)(zhong)苯(ben)類溶(rong)劑(ji)揮(hui)發不完全，包裝材(cai)(cai)(cai)料(liao)或(huo)容器生產設(she)備(bei)比較簡(jian)陋時(shi)有(you)(you)可能造成苯(ben)類物(wu)質(zhi)(zhi)在(zai)(zai)包裝材(cai)(cai)(cai)料(liao)中(zhong)(zhong)殘留。食(shi)品(pin)包裝設(she)計過(guo)程(cheng)中(zhong)(zhong)苯(ben)類物(wu)質(zhi)(zhi)滲透到食(shi)品(pin)中(zhong)(zhong)，會導致食(shi)品(pin)中(zhong)(zhong)含有(you)(you)苯(ben)。