真(zhen)(zhen)空(kong)充氣包(bao)(bao)(bao)(bao)裝的主要作用(yong)除真(zhen)(zhen)空(kong)包(bao)(bao)(bao)(bao)裝所具(ju)備(bei)的除氧保(bao)質功能(neng)外(wai)，主要 還(huan)有(you)(you)抗壓、阻氣、保(bao)鮮(xian)等作用(yong)，能(neng)更(geng)有(you)(you)效地(di) 使食(shi)(shi)(shi)品長期保(bao)持原有(you)(you)的色(se)、香、味、形及(ji)營養價(jia)值。另外(wai)，有(you)(you)許多食(shi)(shi)(shi)品不適宜采用(yong)真(zhen)(zhen)空(kong)包(bao)(bao)(bao)(bao)裝而(er)必須采用(yong)真(zhen)(zhen)空(kong)充氣包(bao)(bao)(bao)(bao)裝。如松脆易碎食(shi)(shi)(shi)品，易結塊食(shi)(shi)(shi)品，易變形走油食(shi)(shi)(shi)品，有(you)(you)尖(jian)銳棱角或硬度(du)較(jiao)高會刺破(po)包(bao)(bao)(bao)(bao)裝袋(dai)(dai)的食(shi)(shi)(shi)品等。食(shi)(shi)(shi)品經真(zhen)(zhen)空(kong)充氣包(bao)(bao)(bao)(bao)裝后，包(bao)(bao)(bao)(bao)裝袋(dai)(dai)內充氣壓強大(da)于包(bao)(bao)(bao)(bao)裝袋(dai)(dai)外(wai)大(da)氣壓強，能(neng)有(you)(you)效地(di)防止(zhi)食(shi)(shi)(shi)品受壓破(po)碎變形并不影響包(bao)(bao)(bao)(bao)裝袋(dai)(dai)外(wai)觀及(ji) 印刷裝潢。