真(zhen)(zhen)空充(chong)氣(qi)包(bao)(bao)(bao)裝的主(zhu)要作用除真(zhen)(zhen)空包(bao)(bao)(bao)裝所具備的除氧(yang)保質功(gong)能外，主(zhu)要 還有(you)(you)抗(kang)壓(ya)(ya)、阻(zu)氣(qi)、保鮮等(deng)作用，能更有(you)(you)效地 使食(shi)(shi)品(pin)(pin)長期保持原(yuan)有(you)(you)的色、香(xiang)、味、形(xing)及營養價值。另外，有(you)(you)許多(duo)食(shi)(shi)品(pin)(pin)不適宜采(cai)用真(zhen)(zhen)空包(bao)(bao)(bao)裝而必須采(cai)用真(zhen)(zhen)空充(chong)氣(qi)包(bao)(bao)(bao)裝。如(ru)松脆易碎(sui)食(shi)(shi)品(pin)(pin)，易結塊食(shi)(shi)品(pin)(pin)，易變形(xing)走油食(shi)(shi)品(pin)(pin)，有(you)(you)尖銳棱角或硬度較高會刺破包(bao)(bao)(bao)裝袋的食(shi)(shi)品(pin)(pin)等(deng)。食(shi)(shi)品(pin)(pin)經(jing)真(zhen)(zhen)空充(chong)氣(qi)包(bao)(bao)(bao)裝后，包(bao)(bao)(bao)裝袋內充(chong)氣(qi)壓(ya)(ya)強(qiang)大于包(bao)(bao)(bao)裝袋外大氣(qi)壓(ya)(ya)強(qiang)，能有(you)(you)效地防止(zhi)食(shi)(shi)品(pin)(pin)受壓(ya)(ya)破碎(sui)變形(xing)并不影響包(bao)(bao)(bao)裝袋外觀及 印刷裝潢。