胶面朝自己，也就是上胶的那个面，面朝自己，用手拉胶带，分界点在正上方，胶水位在左侧则为左胶，反之则为右胶

The glue is facing itself, that is the glue that is on the surface. Face yourself, pull the tape with your hands, the boundary is over, the glue position is left glue on the left, and the right side is the glue on the left side.

根据热切制袋机和对折机的工作原理的区别，如果热切制袋机上胶选用右胶，对折机上胶选用左胶。

According to the difference between the working principle of the hot cut bag making machine and the folding machine, if the glue is used to choose the right glue on the hot cut bag making machine, the left glue is selected for the adhesive on the folding machine.

什么情况下在热切制袋机上胶? PE膜，PP膜，BOPP膜厚度在2、3丝以下的选择在热切制袋机上贴胶带。

Under the circumstances, the adhesive tape on the hot cut bag machine, PE film, PP film, BOPP film thickness below 2 and 3 silk, is attached to the hot cutting bag machine.

反之，对折机上是在bopp膜厚度在2、3丝以上的情况下。

On the other hand, the folding machine is in the case that the thickness of the BOPP film is above 2 and 3 wires.