我国的制袋生产厂家过去主要以生产窄幅全自动制袋机为主，近年来，随着需求的增加，在我们食用物资供应的背后，是制袋机包装市场提供了帮助。
在制袋过程中也常常遇到热封性能不好的问题，我们该如何解决呢？采用保温老化加快粘合剂硬化，这样可以提高复合膜的强度及耐热性。
选择热封条件时，根据复合薄膜的结构、热封状态等情况选择，或者改进热封方式，热封后及时冷却。
定期检查热封层薄膜的保质期和保存条件，要注意旧批号或热封过的薄膜。
改变热封层薄膜的种类，选择具有抗污染热封性的内封层薄膜。
热封后检测热封面的处理程度，调节适宜的热封温度。
现如今，制袋机被运用在食品、化工等国计民生的重大产业，运用就可能遇到其他问题。
学会怎样解决，才能让制袋机达到人们的需求。
In recent years, with the increase of demand, behind the supply of our food materials, is the help of the packaging market. In the process of bag making, we often encounter the problem of poor heat sealing performance. How can we solve it? The strength and heat resistance of the composite film can be improved by using heat preservation aging to accelerate the hardening of the adhesive. When selecting the heat sealing conditions, choose according to the structure and heat sealing state of the composite film, or improve the heat sealing mode, and cool in time after heat sealing. Regularly check the shelf life and preservation conditions of the heat sealed film, and pay attention to the old batch number or the heat sealed film. Change the type of heat sealing film, choose the inner sealing film with anti pollution heat sealing property. After heat sealing, check the treatment degree of heat sealing surface and adjust the appropriate heat sealing temperature. Nowadays, the bag making machine is used in the food, chemical industry and other major industries of national economy and people's livelihood, which may encounter other problems. Learn how to solve it, so that the bag making machine can meet people's needs.