主要还是看看到底在使用的时候，这个保温袋的所处环境和当前的天气温度。保温袋主要材质是珍珠棉以及铝箔材料。保温袋在夏季的时候保温效果比较好，大概可以保温5个小时到6个小时左右。一般外卖袋的厚度在2毫米左右，食品冷冻类所用的保温袋在2.5-3毫米左右，保温袋的整体密度也各有不同，其价格没有明确的界限，看个人适用情况。山东聊城延程包装厂以高质量，低价格为各界用户提供更好的服务！
It is mainly to see the environment and current weather temperature of the thermal insulation bag when it is used. The main materials of the insulation bag are pearl cotton and aluminum foil. The heat preservation effect of the heat preservation bag is relatively good in summer, and it can be kept for about 5 to 6 hours. Generally, the thickness of the take out bag is about 2mm, and the insulation bag used for food freezing is about 2.5-3mm. The overall density of the insulation bag is also different. There is no clear boundary for its price. It depends on the personal application. Shandong Liaocheng Yancheng packaging factory provides better service for users from all walks of life with high quality and low price!
