The tensile strength and tangential breaking strength of gelatin film could be enhanced by glycerin plasticizing at the concentration of 0.2%, but the heatsealing strength tended to decrease.

• 用0.；2%25甘油增塑的明胶膜，其抗拉强度，直角撕裂强度均有所改善，但其热封强度稍有下降；