真(zhen)(zhen)(zhen)空(kong)(kong)(kong)充(chong)氣(qi)(qi)包裝(zhuang)(zhuang)的(de)主要作用(yong)除真(zhen)(zhen)(zhen)空(kong)(kong)(kong)包裝(zhuang)(zhuang)所具備的(de)除氧保(bao)質功能(neng)(neng)外，主要還有(you)(you)抗壓(ya)、阻氣(qi)(qi)、保(bao)鮮等(deng)(deng)作用(yong)，能(neng)(neng)更有(you)(you)效地(di)使(shi)食(shi)品(pin)(pin)(pin)(pin)長期保(bao)持原有(you)(you)的(de)色(se)、香、味、形及營養價值。另外，有(you)(you)許多食(shi)品(pin)(pin)(pin)(pin)不(bu)適宜采(cai)用(yong)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)包裝(zhuang)(zhuang)而(er)必(bi)須采(cai)用(yong)真(zhen)(zhen)(zhen)空(kong)(kong)(kong)包裝(zhuang)(zhuang)機真(zhen)(zhen)(zhen)空(kong)(kong)(kong)充(chong)氣(qi)(qi)包裝(zhuang)(zhuang)。如松脆易(yi)碎食(shi)品(pin)(pin)(pin)(pin)，易(yi)結塊食(shi)品(pin)(pin)(pin)(pin)，易(yi)變形走油食(shi)品(pin)(pin)(pin)(pin)，有(you)(you)尖銳棱角或硬度較(jiao)高會刺破包裝(zhuang)(zhuang)袋(dai)的(de)食(shi)品(pin)(pin)(pin)(pin)等(deng)(deng)。食(shi)品(pin)(pin)(pin)(pin)經真(zhen)(zhen)(zhen)空(kong)(kong)(kong)充(chong)氣(qi)(qi)包裝(zhuang)(zhuang)后，包裝(zhuang)(zhuang)袋(dai)內充(chong)氣(qi)(qi)壓(ya)強(qiang)大(da)于包裝(zhuang)(zhuang)袋(dai)外大(da)氣(qi)(qi)壓(ya)強(qiang)，能(neng)(neng)有(you)(you)效地(di)防止食(shi)品(pin)(pin)(pin)(pin)受壓(ya)破碎變形并(bing)不(bu)影響包裝(zhuang)(zhuang)袋(dai)外觀及印刷裝(zhuang)(zhuang)潢。