真(zhen)(zhen)空(kong)充(chong)(chong)氣(qi)包(bao)裝(zhuang)(zhuang)的主(zhu)要作(zuo)用(yong)除(chu)真(zhen)(zhen)空(kong)包(bao)裝(zhuang)(zhuang)所具備的除(chu)氧(yang)保(bao)質功能(neng)外(wai)，主(zhu)要 還有(you)(you)(you)抗壓(ya)、阻(zu)氣(qi)、保(bao)鮮等(deng)作(zuo)用(yong)，能(neng)更有(you)(you)(you)效(xiao)地 使食(shi)(shi)(shi)品(pin)長期保(bao)持原有(you)(you)(you)的色、香、味、形及營(ying)養價值。另外(wai)，有(you)(you)(you)許多(duo)食(shi)(shi)(shi)品(pin)不適宜(yi)采用(yong)真(zhen)(zhen)空(kong)包(bao)裝(zhuang)(zhuang)而必須采用(yong)真(zhen)(zhen)空(kong)充(chong)(chong)氣(qi)包(bao)裝(zhuang)(zhuang)。如松脆易碎食(shi)(shi)(shi)品(pin)，易結(jie)塊食(shi)(shi)(shi)品(pin)，易變(bian)(bian)形走(zou)油(you)食(shi)(shi)(shi)品(pin)，有(you)(you)(you)尖銳(rui)棱(leng)角或硬度較高會刺破包(bao)裝(zhuang)(zhuang)袋(dai)(dai)的食(shi)(shi)(shi)品(pin)等(deng)。食(shi)(shi)(shi)品(pin)經真(zhen)(zhen)空(kong)充(chong)(chong)氣(qi)包(bao)裝(zhuang)(zhuang)后，包(bao)裝(zhuang)(zhuang)袋(dai)(dai)內(nei)充(chong)(chong)氣(qi)壓(ya)強(qiang)大(da)于包(bao)裝(zhuang)(zhuang)袋(dai)(dai)外(wai)大(da)氣(qi)壓(ya)強(qiang)，能(neng)有(you)(you)(you)效(xiao)地防止食(shi)(shi)(shi)品(pin)受壓(ya)破碎變(bian)(bian)形并不影響包(bao)裝(zhuang)(zhuang)袋(dai)(dai)外(wai)觀及 印刷裝(zhuang)(zhuang)潢。