真(zhen)空(kong)充(chong)氣包(bao)(bao)裝的主要作用(yong)(yong)除真(zhen)空(kong)包(bao)(bao)裝所(suo)具備的除氧保(bao)質(zhi)功能(neng)(neng)外，主要還有抗壓(ya)、阻氣、保(bao)鮮等(deng)作用(yong)(yong)，能(neng)(neng)更有效地(di)使食(shi)(shi)(shi)品(pin)長(chang)期保(bao)持原(yuan)有的色、香、味、形(xing)及營(ying)養價值。另外，有許多食(shi)(shi)(shi)品(pin)不適(shi)宜采(cai)用(yong)(yong)真(zhen)空(kong)包(bao)(bao)裝而必(bi)須采(cai)用(yong)(yong)真(zhen)空(kong)包(bao)(bao)裝機真(zhen)空(kong)充(chong)氣包(bao)(bao)裝。如松脆易碎食(shi)(shi)(shi)品(pin)，易結塊食(shi)(shi)(shi)品(pin)，易變形(xing)走油(you)食(shi)(shi)(shi)品(pin)，有尖銳棱角(jiao)或硬度較高(gao)會刺破包(bao)(bao)裝袋(dai)(dai)的食(shi)(shi)(shi)品(pin)等(deng)。食(shi)(shi)(shi)品(pin)經(jing)真(zhen)空(kong)充(chong)氣包(bao)(bao)裝后，包(bao)(bao)裝袋(dai)(dai)內充(chong)氣壓(ya)強大(da)(da)于包(bao)(bao)裝袋(dai)(dai)外大(da)(da)氣壓(ya)強，能(neng)(neng)有效地(di)防止食(shi)(shi)(shi)品(pin)受壓(ya)破碎變形(xing)并不影(ying)響包(bao)(bao)裝袋(dai)(dai)外觀及印刷裝潢。