The sealing film (induction sealing film) cannot be effectively heated, usually due to a mismatch between its material and equipment parameters. Excessive thickness of the film may cause changes in the resistance of the aluminum foil layer or a decrease in thermal conductivity efficiency, thereby affecting the induction effect. 

1、 Adjust equipment parameters 

Enhance output power: Increase the power of the sealing machine appropriately and enhance the magnetic field strength to penetrate thicker materials. 

Extend sealing time: Increase the heating time to fully accumulate heat, but be aware that excessive heating may cause deformation of the film layer. 

2、 Optimize material selection 

Verify membrane structure: Excessive support layer or heat sealing layer will hinder heat conduction. It is recommended to communicate with the supplier and choose a model with a moderate thickness of the aluminum foil layer and an overall thickness that meets the equipment requirements. 

Test alternative models: Replace sealing films of different specifications for testing to find the optimal thickness compatible with the equipment. 

3、 Check the equipment status 

Adjust the sensing distance: Ensure that the sensing head is at an appropriate distance from the bottle mouth, as excessive distance will weaken the magnetic field strength. 

Equipment maintenance and inspection: Regularly check the induction coil and capacitor to ensure that the equipment is in the best working condition. 

summary 

To solve this problem, we need to start from two aspects: equipment parameters and materials. It is recommended to gradually adjust the power and time parameters, and contact the sealing film supplier to provide products with technical parameters that match, in order to effectively improve the sealing effect. 

Leadtra Packaging specializes in the research, production, and sales of aluminum foil sealing films. Our products have strong sealing and barrier properties, as well as excellent tear resistance. We also have an experienced design and development team that can quickly provide customers with product sealing solutions. If you are interested in or have any questions about us, please feel free to call us for consultation.