The Benefits of Induction Heat Sealing
Counterfeit protection is also popular in the cosmetic industry, particularly for products of a high value, and for easily imitable products such as water, where original product manufacturers want to avoid the risk of losing brand equity.
In response to counterfeiters becoming increasingly more sophisticated, induction seals have also become more advanced with options such as etched or engraved foil, colour-shifting inks, micro-printing, printed or electronic (RFID) codes, custom colours and inks with DNA added.
By moving to induction sealing, many manufacturers are also able to reduce the thickness of the foil and the amount of plastic used in the closure and bottle –making it a more eco-friendly packaging option.
Induction sealers are easier to move from one production line to another as they can simply be wheeled into place over an existing section of conveyor. No time is wasted and production can go on without further interruption.
This ensures your product will not leak during storage, the transportation process or before your consumer is ready to use your product.
Many larger retailers and shipping companies – including Amazon – require a form of leak protection such as an induction seal.
Many of Enercon’s customers began induction sealing to prevent leaks that were occurring from the use of other closure methods, such as tear band closures and glue sealing.
Saving money is one of the first reasons manufacturers move to induction cap sealing. How they save money can be achieved in many ways:
- The considerable energy savings and increased output from running the machine
- The reduction in costs from recalled products that have leaked
- Extended shelf life
- Reduction in maintenance
- Reduced downtime
- Reduction in the amount of material used in the closure and container
In comparison to other sealing methods, such as conduction, an induction sealer can provide reliable and secure seals without having to touch or handle the containers – no contact between the sealers and the containers is necessary. This is particularly useful as it means the equipment does not have to be cleaned regularly, as with a conduction sealer.
About Induction Sealing
Induction cap sealing or heat sealing, as it is widely known, is a very simple and straightforward process.
The container is filled and the cap (fitted with a foil liner) is applied. The capped container then passes under the induction cap sealer where a controlled electromagnetic field transfers energy to the foil in the cap, creating heat. This melts the sealing material on the foil liner. Once this sealant cools, the liner adheres to the neck of the container – this is known as a hermetic (air tight) seal.
