真(zhen)(zhen)空(kong)(kong)充(chong)氣(qi)(qi)包(bao)裝(zhuang)(zhuang)的(de)主要作用(yong)除真(zhen)(zhen)空(kong)(kong)包(bao)裝(zhuang)(zhuang)所具(ju)備(bei)的(de)除氧保質功能外,主要 還(huan)有(you)抗(kang)壓、阻氣(qi)(qi)、保鮮(xian)等作用(yong),能更(geng)有(you)效地(di) 使(shi)食(shi)(shi)品(pin)(pin)長期保持原有(you)的(de)色、香、味(wei)、形及營養價(jia)值。另外,有(you)許(xu)多食(shi)(shi)品(pin)(pin)不適宜(yi)采用(yong)真(zhen)(zhen)空(kong)(kong)包(bao)裝(zhuang)(zhuang)而(er)必須(xu)采用(yong)真(zhen)(zhen)空(kong)(kong)充(chong)氣(qi)(qi)包(bao)裝(zhuang)(zhuang)。如松脆易(yi)(yi)碎(sui)食(shi)(shi)品(pin)(pin),易(yi)(yi)結塊(kuai)食(shi)(shi)品(pin)(pin),易(yi)(yi)變形走(zou)油食(shi)(shi)品(pin)(pin),有(you)尖銳棱角或硬(ying)度較高會(hui)刺破包(bao)裝(zhuang)(zhuang)袋的(de)食(shi)(shi)品(pin)(pin)等。食(shi)(shi)品(pin)(pin)經真(zhen)(zhen)空(kong)(kong)充(chong)氣(qi)(qi)包(bao)裝(zhuang)(zhuang)后,包(bao)裝(zhuang)(zhuang)袋內(nei)充(chong)氣(qi)(qi)壓強大(da)于包(bao)裝(zhuang)(zhuang)袋外大(da)氣(qi)(qi)壓強,能有(you)效地(di)防止食(shi)(shi)品(pin)(pin)受壓破碎(sui)變形并不影響包(bao)裝(zhuang)(zhuang)袋外觀(guan)及 印刷裝(zhuang)(zhuang)潢。
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