主要毒性物質：苯(ben)(ben)被公(gong)認為致癌物質，但苯(ben)(ben)類(lei)是樹脂(zhi)材料(liao)的良好溶(rong)(rong)劑，它具有(you)(you)溶(rong)(rong)解性強(qiang)，揮(hui)發速度快，價格便宜等優點，因(yin)此被廣泛用于樹脂(zhi)的溶(rong)(rong)劑。在包(bao)(bao)(bao)裝(zhuang)(zhuang)(zhuang)中(zhong)(zhong)(zhong)主要用于復(fu)合(he)(he)包(bao)(bao)(bao)裝(zhuang)(zhuang)(zhuang)材料(liao)粘和劑和塑料(liao)印(yin)刷油墨的溶(rong)(rong)劑。由于在復(fu)合(he)(he)材料(liao)和塑料(liao)印(yin)刷過程中(zhong)(zhong)(zhong)苯(ben)(ben)類(lei)溶(rong)(rong)劑揮(hui)發不完全(quan)，包(bao)(bao)(bao)裝(zhuang)(zhuang)(zhuang)材料(liao)或容器生產設備(bei)比較簡(jian)陋(lou)時有(you)(you)可(ke)能造成苯(ben)(ben)類(lei)物質在包(bao)(bao)(bao)裝(zhuang)(zhuang)(zhuang)材料(liao)中(zhong)(zhong)(zhong)殘留(liu)。食(shi)品(pin)包(bao)(bao)(bao)裝(zhuang)(zhuang)(zhuang)設計(ji)過程中(zhong)(zhong)(zhong)苯(ben)(ben)類(lei)物質滲透到食(shi)品(pin)中(zhong)(zhong)(zhong)，會導致食(shi)品(pin)中(zhong)(zhong)(zhong)含有(you)(you)苯(ben)(ben)。