主(zhu)要毒(du)性物(wu)(wu)(wu)質(zhi)：苯被公認為(wei)致癌物(wu)(wu)(wu)質(zhi)，但苯類(lei)是樹(shu)脂材(cai)料(liao)(liao)的良好溶(rong)(rong)劑(ji)，它具有溶(rong)(rong)解性強(qiang)，揮發(fa)速(su)度(du)快，價格便宜等優點(dian)，因此被廣泛用于(yu)樹(shu)脂的溶(rong)(rong)劑(ji)。在包裝(zhuang)中(zhong)(zhong)(zhong)主(zhu)要用于(yu)復合包裝(zhuang)材(cai)料(liao)(liao)粘和(he)劑(ji)和(he)塑(su)料(liao)(liao)印刷(shua)油墨的溶(rong)(rong)劑(ji)。由于(yu)在復合材(cai)料(liao)(liao)和(he)塑(su)料(liao)(liao)印刷(shua)過程中(zhong)(zhong)(zhong)苯類(lei)溶(rong)(rong)劑(ji)揮發(fa)不完(wan)全，包裝(zhuang)材(cai)料(liao)(liao)或容器生產設備(bei)比較簡(jian)陋時有可(ke)能造(zao)成苯類(lei)物(wu)(wu)(wu)質(zhi)在包裝(zhuang)材(cai)料(liao)(liao)中(zhong)(zhong)(zhong)殘留。食(shi)品(pin)包裝(zhuang)設計(ji)過程中(zhong)(zhong)(zhong)苯類(lei)物(wu)(wu)(wu)質(zhi)滲透(tou)到(dao)食(shi)品(pin)中(zhong)(zhong)(zhong)，會(hui)導(dao)致食(shi)品(pin)中(zhong)(zhong)(zhong)含有苯。