利用多功能立式包装机对蔬菜复合纸进行热封,通过温度单因素试验,确定了蔬菜复合纸的热封温度范围,并在不同温度下研究了大豆蛋白-茴香复合纸和大豆蛋白-芹菜复合纸的热封性能。研究结果表明,采用包装机上对辊加热装置进行封合时,芹菜基复合纸的热封温度应选择105 ℃以下;大豆蛋白-芹菜复合纸的热封性能显著优于大豆蛋白-茴香复合纸,平均热封强度是后者的3. 245 倍。

Multifunctional vertical packing machine was used to heat-seal the vegetable composite paper. Through single factor test, the heat-sealing temperature range of vegetable composite paper was determined. The heat sealing performance of soy protein-fennel and celery composite paper were studied under different temperatures. The results indicated that the heat sealing temperature of the celery based vegetable composite paper should be lower than 105℃below by using heat roller device for heat-sealing; heat sealing performance of soy protein-celery composite paper is significantly superior to the soy protein-fennel composite papers; the average heat sealing strength of the former is generally 3. 245 times as that of the latter.