Making a product available, intact, with its original properties, in tamper-proof container has been a long demanded challenging task ahead of manufacturers. The one and only solution available today is sealing these containers by providing a foil that would seal on to the lip of the container - thus ensuring that the product reaches the end-user (consumer) without being tampered for quality and quantity.
Long since the inception of induction sealer systems there has been lot of myths and facts being discussed regarding this concept. usually this process is termed as sealing - but the fact is that the induction sealers actually would only heat the inner foil hermetically by creating a electromagnetic field. This heat melts the inner sealing layer on to the lip of the container and the paperboard also separates itself leaving the foil on to the container - when the consumer removes the cap. There are few parameters that would effect and affect the sealing process mentioned as below:
1. Type of foil employed
2. Capping torque applied
3. Right power selection on the sealing head
4. Corresponding container / conveyor speed
Type of foil employed:
Typically the foil employed would contain the following multi-layers:1. Paper board2. Wax Bond3. Aluminum Foil4. Heat Seal-able Layer / film
Capping torque:
This is very IMPORTANT fact that would allow the Foil to seal on to the container. Typically customer complaint that the Induction Foil Sealer is not sealing the containers and try to adjust the power parameters frequently - which is rather un-necessary. As explained above this misconception gets exposed during such situations. The Induction Sealers - rather *HEATERS* do not actually affect the process - unless the power requirement is not fulfilled. But considering that the Power selected is correct the type of foil and Capping torque would directly affect the foil sealing process. The Capping torque has to be uniform and within the specified limits to achieve the perfect seal. It is the combination of the pressure achieved by the capping machine and the corresponding heat that would seal the foil on to the container.* If the Power selection is wrong none of the foils would seal.
Right power selection:
Power selection factor is equally important as well to achieve a good seal. There are various models available in market from 1 KW to up to 50 KW to be selected for the right application for containers (glass / PET / HDPE / PVC / PE / PP etc.) handling range of cap diameters and products. Within the available power / frequency parameters the particular container diameter would need some fine-tuning to achieve a good seal.
Container / conveyor speed:
The power capacity to be selected would depend upon the diameter of the CAP and also the NUMBER OF CONTAINERS available under the sealing head and the corresponding conveyor speed. It is also very important that a minimum gap of at least 75 mm be maintained between each corresponding .
Principle Of Induction Foil Sealers
The pre-lined caps are capped and perfectly torqued on to the containers before subjecting it to the Induction Sealers. The Induction Sealer "HEATER" would generate necessary heat by creating a electro-magnetic field thus heating the cap area HERMETICALLY allowing the wax board to separate and the inner seal liner to seal on to the lip of the container. After allowing the container to cool - when the cap is removed the paperboard remain in the cap and the aluminum foil with the sealed liner remain on the container - thus achieving the necessary tamper-proof seal. Depending on the frequency set the system would generate heat ranging from 1650F to 3500F
Today''s advanced technology replaces the traditional IGBT circuit design requiring the water cooling circuit right in to your packaging room. Moreover the separate requirement of radiators, water pump, water pipes / hoses, leaking connectors etc are also eliminated. Not to mention it saves the extra power & space required running this circuit as well.
Automate Technologies llc, the originators of the waterless technology offer the most advanced micro Processor controlled Induction Foiler model AM-20 that not only allows customers to avoid the water circuits but also the most advanced controls enabling the optimum utilization of the available power at the sealing head.
There are varieties of containers that can be handled on a single machine from Glass / PVC / PP / PE / HDPE etc. for container diameters ranging from 13 mm to 70 mm (standard execution) and also available up to 120 mm on demand (subject to approval trials). The machine can be set fully functional with or without the optional items available like the missing foil detector & rejector, stalled bottle indicator working in conjunction with the light and audible alarm, SS Portable stand etc. u
For any further detail and clarifications in this matter please contact:
N S Desai
Shreyas Enterprises,
5/19, Samarpan CHS, Yashodhan nagar,
Thane: 400606 INDIA
Telephone #: 0091 22 588 3334
Telefax #: 0091 22 588 5764
Email: shreyasenterprises@hotmail.com