真(zhen)空(kong)(kong)充(chong)氣(qi)包(bao)裝的主(zhu)要(yao)(yao)作用除真(zhen)空(kong)(kong)包(bao)裝所具備的除氧保(bao)(bao)質(zhi)功(gong)能(neng)外(wai),主(zhu)要(yao)(yao) 還(huan)有(you)(you)抗壓(ya)(ya)、阻(zu)氣(qi)、保(bao)(bao)鮮(xian)等作用,能(neng)更有(you)(you)效(xiao)地(di) 使食(shi)品長期保(bao)(bao)持原有(you)(you)的色、香、味、形及(ji)營(ying)養價值。另外(wai),有(you)(you)許多食(shi)品不適宜采用真(zhen)空(kong)(kong)包(bao)裝而必須采用真(zhen)空(kong)(kong)充(chong)氣(qi)包(bao)裝。如松(song)脆(cui)易(yi)碎(sui)食(shi)品,易(yi)結(jie)塊(kuai)食(shi)品,易(yi)變形走油食(shi)品,有(you)(you)尖銳(rui)棱角(jiao)或(huo)硬度較高會刺破包(bao)裝袋(dai)的食(shi)品等。食(shi)品經真(zhen)空(kong)(kong)充(chong)氣(qi)包(bao)裝后,包(bao)裝袋(dai)內充(chong)氣(qi)壓(ya)(ya)強(qiang)大(da)于(yu)包(bao)裝袋(dai)外(wai)大(da)氣(qi)壓(ya)(ya)強(qiang),能(neng)有(you)(you)效(xiao)地(di)防止食(shi)品受壓(ya)(ya)破碎(sui)變形并不影響包(bao)裝袋(dai)外(wai)觀及(ji) 印刷裝潢。
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