食品铝塑袋特点
Characteristics of food aluminum plastic bag
1.机械性好，能够满足自动包装机械的使用要求，但缺乏柔软性。撕裂强度低，在折叠处易断裂。易于加工，能和塑料薄膜、纸张等包装材料复合并便于着色和印刷
1. Good mechanical properties, can meet the requirements of automatic packaging machinery, but lack of flexibility. The tear strength is low and easy to break at the fold. It is easy to process, can be compounded with plastic film, paper and other packaging materials, and easy to dye and print
2.重量轻、有利于降低运输费用
2. Light weight, which is conducive to reducing transportation costs
3.无热黏合性，不耐酸、碱，易卷曲
3. No thermal adhesion, acid and alkali resistance, easy to curl
4.具有金属光泽，遮光性好，对光有较强的反射能力，反光率可达95%
4. It has metallic luster, good shading, strong light reflecting ability, and the reflection rate can reach 95%
5.不易被腐蚀，阻隔性好，防潮防水，气密性强，并具有保香性
5. It is not easy to be corroded, good barrier, moisture-proof and waterproof, strong air tightness and fragrance retention
6.高温和低温时形状稳定，温度在-73到371°C时不涨缩变形
6. The shape is stable at high temperature and low temperature, and there is no shrinkage deformation at - 73 to 371 ° C