真(zhen)空(kong)(kong)充氣包裝的(de)主要作用(yong)除真(zhen)空(kong)(kong)包裝所具(ju)備(bei)的(de)除氧保(bao)質功能(neng)(neng)外,主要還有(you)(you)抗壓、阻氣、保(bao)鮮等作用(yong),能(neng)(neng)更有(you)(you)效地(di)使食(shi)(shi)(shi)品(pin)(pin)(pin)長(chang)期保(bao)持原(yuan)有(you)(you)的(de)色、香、味、形(xing)及營養價值(zhi)。另外,有(you)(you)許多食(shi)(shi)(shi)品(pin)(pin)(pin)不適宜采(cai)用(yong)真(zhen)空(kong)(kong)包裝而必須采(cai)用(yong)真(zhen)空(kong)(kong)包裝機(ji)真(zhen)空(kong)(kong)充氣包裝。如(ru)松(song)脆易碎(sui)食(shi)(shi)(shi)品(pin)(pin)(pin),易結塊食(shi)(shi)(shi)品(pin)(pin)(pin),易變形(xing)走(zou)油食(shi)(shi)(shi)品(pin)(pin)(pin),有(you)(you)尖銳(rui)棱角或硬度較高會刺破包裝袋(dai)的(de)食(shi)(shi)(shi)品(pin)(pin)(pin)等。食(shi)(shi)(shi)品(pin)(pin)(pin)經真(zhen)空(kong)(kong)充氣包裝后,包裝袋(dai)內充氣壓強大于(yu)包裝袋(dai)外大氣壓強,能(neng)(neng)有(you)(you)效地(di)防止食(shi)(shi)(shi)品(pin)(pin)(pin)受(shou)壓破碎(sui)變形(xing)并不影響包裝袋(dai)外觀及印刷裝潢。
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