How to deal with air bubbles occurring in heat sealing and cold cutting bag making machine?






1. After insulation aging, the adhesive is hardened, and the composite strength and heat resistance of the composite film are improved.


2. According to the composition of the composite film and the heat sealing condition, choose better heat sealing conditions or improve the heat sealing method, and immediately cool down after heat sealing.


3, check the preservation period and preservation conditions of the heat sealing layer film, if the heat sealing layer is used old batch number of film and the film after heat sealing treatment, special attention should be paid to.






4. Increase the thickness of the heat sealing film of the heat sealing cold cutting bag making machine.






5, change the varieties and grades of the heat sealing layer film, the use of anti-pollution heat sealing layer film.


6, check whether the grade of the adhesive meets the requirements.


7, improve the thermal sealing function of the heat sealing layer, control the content of slipper, choose MLLDPE film.






8. Control the monomer content of MDI in the composite adhesive.






9. Check the treatment degree of the hot cover of the hot sealing and cold cutting bag making machine.


Ruian Huarui Machinery Co., Ltd. specializes in the production of heat sealing and cold cutting bag making machine. For more information, please pay attention to the official website m.garywong.cn