Latest
Induction Cap Sealing Technology, to create alternative, airtight,
hermetic seals on the necks of containers. The process can produce
significant cost savings in the Packaging Process. The seal is strong,
flexible & yet easy to remove and provides protection against
contamination. Induction heating allows heat sensitive products such as
creams, petroleum products, pesticides etc. which would normally gets
spoiled or catch fire on normal heat sealing to be sealed. The sealing
takes place without any direct contact which allows full potential of
the filling plant to be utilised.
Containers
Inner seal can be
used on containers made of PET, PVC, Polythene, Glass and other
thermoplastics. They are suitable for use with screw type Snap On,
Child resistant and other customer closures as long as the seal is in
positive contact with the neck of container. A uniform neck finishing
is required for good Induction Sealing. The sealing is not to be very
wide. From small 50 ml to the big 200 Ltrs drum having a neck size of
10 mm opening to the wide mouth of 120 mm which can be Induction
sealed. Induction sealing Wads inserts in HDPE, LDPE, PET & PP in
the different thickness locally available.
Wads
The Wad basically consists of four layers:
- Cardboard or Foam Packing.
- Wax Layer.
- Aluminum Foil.
- Sealing Film.
We see a pulp board
packing material as the retaining wad, the wax dot pattern layer, the
aluminium foil and the sealing film. The lines of force radiate through
the foil and induce current flow in it. This increases the temperature
of the foil. 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.
PROCESS
The process of
Induction Cap Sealing is based on the principle that a conductive
material i.e. Al Foil heats up on exposure to high frequency magnetic
field generated by an Induction Unit. This is a non contact process
without direct heat transfer. Due to this, the sealable closure liner
can be placed in the cap by the manufacturer. The Wad consists of a
board packing material, a wax layer, Aluminum foil and a sealable film.
The screw cap combination passes through the induction unit after
closure of the container. When the container is under the induction
head, heat is developed into the Aluminum layer. The wax layer starts
to melt and penetrates into the board layer. The Sealing layer also
melts & forms a tight seal against the lip of container. The
necessary pressure is provided by the liner/screw cap combination. On
opening the container, the board remains inside the cap and serves as a
seal on further use, whereas the aluminium foil is permanently sealed
on the rim of the mouth of container.
ADVANTAGES OF INDUCTION CAP SEALING
- Tamper Proof: It is
not possible, from production to the Consumer that the content of the
product be manipulated without being clearly noticed.
- Product Freshness: The taste and aroma of the product remains intact due to the hermetic seal.
- Protection against Leakage: There is no spillage or loss of contents of the product.
- Sales Promotion: The foil on the inside can be used for advertising or promotional purposes.
- Maximum Filling
Speeds: The sealing takes place without any direct contact which allows
full potential of the filling plant to be utilized.
- Minimum Effort: The
wad is put in the cap by the manufacturers. Thus the filling line
requires only the Induction Cap Sealing equipment to be installed.
- Indirect Heating:
Induction heating allows heat sensitive products such as creams,
petroleum product, pesticides etc. to be sealed faster and safely than
direct heating which would normally spoil or catch fire.
- IGBT Technology: IGBT's are more reliable and efficient at higher line speeds.
MODELS AVAILABLE
SEMI AUTOMATIC TABLE TOP: 4 To 5 Containers per Minute.
Portable Induction
Sealing System for very small production units. It can seal from 10mm
up to 53mm and can give 4 to 5 containers per minute. This system does
not require water cooling as it is equipped with an inbuilt timer.
There are separate Induction Head available for various diameters
ranges.
AUTOMATIC and SEMI AUTOMATIC INDUCTION CAP SEALING MACHINE: Up To 60 Bottles per Minute.
Induction Head Unit
& Water Circulation System, this system requires water cooling and
is available with or without conveyor. This system can seal Containers
having Diameters from 10mm up to 63mm production speeds up to 60
Bottles per minute.
AUTOMATIC INDUCTION CAP SEALING MACHINE: Up To 120 Bottles per Minute.
Induction Head Unit
& Water Circulation System, this System requires Water Cooling
& is available with Conveyor. This System Can Seal Containers
having Diameters from 10mm up to 63mm and production speeds up to 120
Bottles per minute. This unit is Ideal for Exports
AUTOMATIC INDUCTION CAP SEALING MACHINE: Up To 150 Bottles per Minute.
Induction Head
Unit. This System requires Water Cooling & is available with or
without Conveyor. The System Can Seal Containers having Diameters from
10mm up to 150mm and production speeds up to 150 Bottles per minute.
NOTE: COOLING SYSTEM AIR COOLED CAN BE PROVIDED AS PER CUSTOMER REQUIREMENT.
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