真(zhen)空充(chong)(chong)氣(qi)包裝(zhuang)(zhuang)的(de)主(zhu)要作用除(chu)真(zhen)空包裝(zhuang)(zhuang)所具備的(de)除(chu)氧保質功(gong)能外(wai)(wai),主(zhu)要還有(you)(you)(you)抗壓(ya)(ya)、阻氣(qi)、保鮮等作用,能更有(you)(you)(you)效(xiao)地使(shi)食(shi)(shi)品(pin)(pin)長期保持原有(you)(you)(you)的(de)色(se)、香(xiang)、味、形(xing)(xing)及營養價值。另外(wai)(wai),有(you)(you)(you)許(xu)多(duo)食(shi)(shi)品(pin)(pin)不(bu)適宜采(cai)用真(zhen)空包裝(zhuang)(zhuang)而(er)必須采(cai)用真(zhen)空包裝(zhuang)(zhuang)機真(zhen)空充(chong)(chong)氣(qi)包裝(zhuang)(zhuang)。如松脆易(yi)碎(sui)食(shi)(shi)品(pin)(pin),易(yi)結塊食(shi)(shi)品(pin)(pin),易(yi)變形(xing)(xing)走油食(shi)(shi)品(pin)(pin),有(you)(you)(you)尖銳棱角或硬度(du)較(jiao)高會刺破包裝(zhuang)(zhuang)袋(dai)的(de)食(shi)(shi)品(pin)(pin)等。食(shi)(shi)品(pin)(pin)經真(zhen)空充(chong)(chong)氣(qi)包裝(zhuang)(zhuang)后,包裝(zhuang)(zhuang)袋(dai)內(nei)充(chong)(chong)氣(qi)壓(ya)(ya)強(qiang)大于包裝(zhuang)(zhuang)袋(dai)外(wai)(wai)大氣(qi)壓(ya)(ya)強(qiang),能有(you)(you)(you)效(xiao)地防止食(shi)(shi)品(pin)(pin)受壓(ya)(ya)破碎(sui)變形(xing)(xing)并不(bu)影響(xiang)包裝(zhuang)(zhuang)袋(dai)外(wai)(wai)觀及印刷(shua)裝(zhuang)(zhuang)潢。
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