主要(yao)毒性(xing)物(wu)(wu)(wu)質(zhi)(zhi)：苯(ben)被公認為致癌(ai)物(wu)(wu)(wu)質(zhi)(zhi)，但苯(ben)類是樹(shu)脂(zhi)材(cai)料(liao)的良好溶劑(ji)(ji)，它(ta)具有溶解性(xing)強，揮(hui)發(fa)速度快，價格(ge)便(bian)宜等優點(dian)，因此被廣泛用于(yu)(yu)(yu)樹(shu)脂(zhi)的溶劑(ji)(ji)。在(zai)包(bao)裝(zhuang)中(zhong)(zhong)(zhong)主要(yao)用于(yu)(yu)(yu)復合包(bao)裝(zhuang)材(cai)料(liao)粘(zhan)和劑(ji)(ji)和塑(su)料(liao)印刷油墨的溶劑(ji)(ji)。由于(yu)(yu)(yu)在(zai)復合材(cai)料(liao)和塑(su)料(liao)印刷過(guo)程中(zhong)(zhong)(zhong)苯(ben)類溶劑(ji)(ji)揮(hui)發(fa)不完全，包(bao)裝(zhuang)材(cai)料(liao)或容(rong)器(qi)生產設(she)備比較簡陋時有可能(neng)造成(cheng)苯(ben)類物(wu)(wu)(wu)質(zhi)(zhi)在(zai)包(bao)裝(zhuang)材(cai)料(liao)中(zhong)(zhong)(zhong)殘留。食品(pin)包(bao)裝(zhuang)設(she)計過(guo)程中(zhong)(zhong)(zhong)苯(ben)類物(wu)(wu)(wu)質(zhi)(zhi)滲(shen)透到(dao)食品(pin)中(zhong)(zhong)(zhong)，會導(dao)致食品(pin)中(zhong)(zhong)(zhong)含(han)有苯(ben)。