自50年(nian)代塑料薄(bo)膜勝利地應用(yong)于商品(pin)(pin)(pin)包(bao)(bao)(bao)(bao)裝以來，真(zhen)空(kong)(kong)(kong)(kong)包(bao)(bao)(bao)(bao)裝技術得(de)到迅速的(de)(de)發(fa)展(zhan)。60、70年(nian)代真(zhen)空(kong)(kong)(kong)(kong)包(bao)(bao)(bao)(bao)裝主(zhu)要(yao)用(yong)于肉類食品(pin)(pin)(pin)。德國是世界上包(bao)(bao)(bao)(bao)裝工(gong)業最發(fa)達(da)的(de)(de)國家(jia)之一，其真(zhen)空(kong)(kong)(kong)(kong)包(bao)(bao)(bao)(bao)裝機(ji)(ji)及真(zhen)空(kong)(kong)(kong)(kong)包(bao)(bao)(bao)(bao)裝技術享有(you)盛名。克萊默爾·格雷伯機(ji)(ji)械制造公司1965年(nian)開始生產熱成型真(zhen)空(kong)(kong)(kong)(kong)包(bao)(bao)(bao)(bao)裝機(ji)(ji)，對(dui)(dui)肉類的(de)(de)真(zhen)空(kong)(kong)(kong)(kong)包(bao)(bao)(bao)(bao)裝進行了大量的(de)(de)研究，取(qu)得(de)了許多效果，如對(dui)(dui)烤肉的(de)(de)包(bao)(bao)(bao)(bao)裝，抽真(zhen)空(kong)(kong)(kong)(kong)后(hou)加適(shi)量的(de)(de)氧氣；對(dui)(dui)含(han)有(you)40％脂肪的(de)(de)香腸(chang)，抽真(zhen)空(kong)(kong)(kong)(kong)后(hou)加適(shi)量的(de)(de)二氧化碳；對(dui)(dui)面包(bao)(bao)(bao)(bao)、花(hua)生抽真(zhen)空(kong)(kong)(kong)(kong)后(hou)充氮氣和適(shi)量的(de)(de)二氧化碳等等達(da)到預定真(zhen)空(kong)(kong)(kong)(kong)度后(hou)，真(zhen)空(kong)(kong)(kong)(kong)包(bao)(bao)(bao)(bao)裝將食品(pin)(pin)(pin)裝入包(bao)(bao)(bao)(bao)裝袋抽出包(bao)(bao)(bao)(bao)裝袋內(nei)的(de)(de)空(kong)(kong)(kong)(kong)氣。完成封口工(gong)序(xu)。