真(zhen)(zhen)(zhen)(zhen)空(kong)充(chong)氣(qi)包(bao)(bao)裝的主要作用(yong)除真(zhen)(zhen)(zhen)(zhen)空(kong)包(bao)(bao)裝所具備的除氧保(bao)(bao)質(zhi)功能(neng)外(wai)(wai)，主要還有(you)(you)(you)抗壓(ya)、阻氣(qi)、保(bao)(bao)鮮等(deng)作用(yong)，能(neng)更(geng)有(you)(you)(you)效(xiao)地(di)使食(shi)(shi)品(pin)(pin)(pin)(pin)(pin)長期(qi)保(bao)(bao)持原有(you)(you)(you)的色、香、味(wei)、形及(ji)營(ying)養價值。另(ling)外(wai)(wai)，有(you)(you)(you)許(xu)多(duo)食(shi)(shi)品(pin)(pin)(pin)(pin)(pin)不適宜采用(yong)真(zhen)(zhen)(zhen)(zhen)空(kong)包(bao)(bao)裝而必須(xu)采用(yong)真(zhen)(zhen)(zhen)(zhen)空(kong)包(bao)(bao)裝機(ji)真(zhen)(zhen)(zhen)(zhen)空(kong)充(chong)氣(qi)包(bao)(bao)裝。如松脆易(yi)碎食(shi)(shi)品(pin)(pin)(pin)(pin)(pin)，易(yi)結塊食(shi)(shi)品(pin)(pin)(pin)(pin)(pin)，易(yi)變形走油食(shi)(shi)品(pin)(pin)(pin)(pin)(pin)，有(you)(you)(you)尖銳棱角或硬度較高會刺破包(bao)(bao)裝袋的食(shi)(shi)品(pin)(pin)(pin)(pin)(pin)等(deng)。食(shi)(shi)品(pin)(pin)(pin)(pin)(pin)經(jing)真(zhen)(zhen)(zhen)(zhen)空(kong)充(chong)氣(qi)包(bao)(bao)裝后，包(bao)(bao)裝袋內充(chong)氣(qi)壓(ya)強(qiang)大于包(bao)(bao)裝袋外(wai)(wai)大氣(qi)壓(ya)強(qiang)，能(neng)有(you)(you)(you)效(xiao)地(di)防止食(shi)(shi)品(pin)(pin)(pin)(pin)(pin)受壓(ya)破碎變形并不影響(xiang)包(bao)(bao)裝袋外(wai)(wai)觀及(ji)印刷裝潢(huang)。