真(zhen)(zhen)空充氣(qi)(qi)包(bao)(bao)(bao)裝(zhuang)的(de)主要作用(yong)除真(zhen)(zhen)空包(bao)(bao)(bao)裝(zhuang)所具備的(de)除氧保(bao)(bao)質功(gong)能外，主要還(huan)有(you)(you)(you)抗壓、阻(zu)氣(qi)(qi)、保(bao)(bao)鮮等作用(yong)，能更有(you)(you)(you)效(xiao)地使食(shi)(shi)(shi)品(pin)(pin)長期(qi)保(bao)(bao)持原有(you)(you)(you)的(de)色、香、味、形(xing)及營(ying)養價(jia)值。另外，有(you)(you)(you)許多(duo)食(shi)(shi)(shi)品(pin)(pin)不適(shi)宜采用(yong)真(zhen)(zhen)空包(bao)(bao)(bao)裝(zhuang)而(er)必須采用(yong)真(zhen)(zhen)空包(bao)(bao)(bao)裝(zhuang)機真(zhen)(zhen)空充氣(qi)(qi)包(bao)(bao)(bao)裝(zhuang)。如松(song)脆易碎食(shi)(shi)(shi)品(pin)(pin)，易結(jie)塊食(shi)(shi)(shi)品(pin)(pin)，易變(bian)形(xing)走油(you)食(shi)(shi)(shi)品(pin)(pin)，有(you)(you)(you)尖銳(rui)棱角或硬度較高會刺破包(bao)(bao)(bao)裝(zhuang)袋的(de)食(shi)(shi)(shi)品(pin)(pin)等。食(shi)(shi)(shi)品(pin)(pin)經(jing)真(zhen)(zhen)空充氣(qi)(qi)包(bao)(bao)(bao)裝(zhuang)后，包(bao)(bao)(bao)裝(zhuang)袋內充氣(qi)(qi)壓強大(da)于包(bao)(bao)(bao)裝(zhuang)袋外大(da)氣(qi)(qi)壓強，能有(you)(you)(you)效(xiao)地防止食(shi)(shi)(shi)品(pin)(pin)受壓破碎變(bian)形(xing)并不影響包(bao)(bao)(bao)裝(zhuang)袋外觀(guan)及印(yin)刷裝(zhuang)潢。