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Why do you require induction cap sealing
machines?
There is a
wide range of closures available, but to date the conventional
bore seal has been the most widely used method of sealing
containers. They are easy to fit and inexpensive to manufacture but
they do not form hermetic, flexible or even reliable seals as they
leak.
Using the latest induction cap sealing technology, it is now
possible to create alternative airtight, hermetic seals on the neck of
the container. This can produce significant cost saving in the
packing process. The seal is strong, flexible and yet
easy to remove and provides protection against
contamination.
The concept :
Induction cap sealing is based on the principle that a
conductive material i.e. aluminum foil heats up when exposed to a
high frequency magnetic field generated by an induction generator.
This process is a non contact process without direct heat
transfer.
The process : The
wad is placed in the cap by the
bottle manufacturer or filler. The bottle then passes through the
induction unit after closure. When the bottle passes under the head,
the lines of force radiate through the foil and induces current flow
in it. This increases the temperature of the foil. The wax layer
starts to melt and penetrates into the board. Due to this, the sealing
film melts and adheres to the lip of the container. After the seal is
broken, the board or foam packing is retained by the cap. This board
remains inside the cap and serves as a seal on further use, and
aluminum foil is permanently sealed on the rim of mouth of the
container.
Containers for induction sealing :
Induction sealing can be used with almost any type of cap
and containers to provide a tight bond suitable with food, beverages,
oil & lubricants, drugs, chemicals & pesticides, pharmaceuticals, etc.
Induction sealing process can be very easily incorporated on an
existing filling line from manual filling to the fully automated
filling and capping lines. The induction unit can have it's own
conveyor or can be mounted on the existing conveyor line.
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