A layer of glue is applied to the seal of the express bag. Traditionally, double-sided tape is used. Now in order to improve product quality and production efficiency, hot melt glue and hot melt glue machines are used. So how does the hot melt glue machine apply glue to the courier bag?

Paper courier bags not only need to be glued on the seal, but also need to be glued on the sides. The scraping method used to apply the glue at the seal, and the streamlined glue spray method used to apply the side glue. The way of gluing at the seal is that the scraper gun is in contact with the release paper, and the gluing is completed during the conveying process, and then the glued release paper is pasted on the express bag and cut according to the required length. One-time molding. The side gluing of the express bag does not require a glue gun to contact the express bag, only a glue line is sprayed at a close distance, and the material is bonded to complete the side gluing.