真(zhen)(zhen)(zhen)(zhen)空充氣(qi)包(bao)(bao)裝(zhuang)(zhuang)的主要作用(yong)(yong)除真(zhen)(zhen)(zhen)(zhen)空包(bao)(bao)裝(zhuang)(zhuang)所(suo)具備的除氧(yang)保(bao)質功能外(wai)(wai)，主要還有(you)(you)抗壓、阻氣(qi)、保(bao)鮮(xian)等作用(yong)(yong)，能更有(you)(you)效(xiao)地(di)使食(shi)(shi)(shi)(shi)品(pin)(pin)長期保(bao)持原有(you)(you)的色(se)、香、味(wei)、形(xing)及營(ying)養價值。另外(wai)(wai)，有(you)(you)許多食(shi)(shi)(shi)(shi)品(pin)(pin)不(bu)適(shi)宜采(cai)用(yong)(yong)真(zhen)(zhen)(zhen)(zhen)空包(bao)(bao)裝(zhuang)(zhuang)而必(bi)須采(cai)用(yong)(yong)真(zhen)(zhen)(zhen)(zhen)空包(bao)(bao)裝(zhuang)(zhuang)機真(zhen)(zhen)(zhen)(zhen)空充氣(qi)包(bao)(bao)裝(zhuang)(zhuang)。如松(song)脆易碎(sui)食(shi)(shi)(shi)(shi)品(pin)(pin)，易結塊(kuai)食(shi)(shi)(shi)(shi)品(pin)(pin)，易變(bian)形(xing)走油食(shi)(shi)(shi)(shi)品(pin)(pin)，有(you)(you)尖(jian)銳棱角(jiao)或(huo)硬(ying)度較(jiao)高會(hui)刺破(po)包(bao)(bao)裝(zhuang)(zhuang)袋(dai)的食(shi)(shi)(shi)(shi)品(pin)(pin)等。食(shi)(shi)(shi)(shi)品(pin)(pin)經真(zhen)(zhen)(zhen)(zhen)空充氣(qi)包(bao)(bao)裝(zhuang)(zhuang)后(hou)，包(bao)(bao)裝(zhuang)(zhuang)袋(dai)內充氣(qi)壓強大于包(bao)(bao)裝(zhuang)(zhuang)袋(dai)外(wai)(wai)大氣(qi)壓強，能有(you)(you)效(xiao)地(di)防止食(shi)(shi)(shi)(shi)品(pin)(pin)受壓破(po)碎(sui)變(bian)形(xing)并不(bu)影響包(bao)(bao)裝(zhuang)(zhuang)袋(dai)外(wai)(wai)觀及印刷裝(zhuang)(zhuang)潢。