Freitag, 10. Juni 2016

induction sealing machine milk cups fully automatic aluminum foil feeding cutting sealer equipment

induction sealing machine milk cups fully automatic aluminum foil feeding cutting sealer equipment
Induction sealing, otherwise known as cap sealing,
is a non-contact method of heating a metallic disk to hermetically seal the top of plastic and glass containers. This sealing process takes place after the container has been filled and capped.
The closure is supplied to the bottler with foil liner already inserted. Although there are various liners to choose from, a typical induction liner is multi-layered. The top layer is a paper pulp that is generally spot-glued to the cap. The next layer is wax that is used to bond a layer of aluminum foil to the pulp. The bottom layer is a polymer film laminated to the foil. After the cap or closure is applied, the container passes under an induction coil, which emits an oscillating electromagnetic field. As the container passes under the induction coil (sealing head) the conductive aluminum foil liner begins to heat. The heat melts the wax, which is absorbed into the pulp backing and releases the foil from the cap. The polymer film also heats and flows onto the lip of the container. When cooled, the polymer creates a bond with the container resulting in a hermetically sealed product. Neither the container nor its contents are affected, and this all happens in a matter of seconds.

It is possible to overheat the foil causing damage to the seal layer and to any protective barriers. This could result in faulty seals, even weeks after the initial sealing process, so proper sizing of the induction sealing is vital to determine the exact system necessary to run a particular product.
Sealing can be done with either a hand held unit or on a conveyor system.
A more recent development (which suits a small number of applications better) allows for induction sealing to be used to apply a foil seal to a container without the need for a closure. In this case, foil is supplied pre-cut or in a reel. Where supplied in a reel, it is die cut and transferred onto the container neck. When the foil is in place, it is pressed down by the seal head, the induction cycle is activated and the seal is bonded to the container. This process is known as direct application or sometimes "capless" induction sealing.
induction sealing machine milk cups fully automatic aluminum foil feeding cutting sealer equipment
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6 Kommentare:

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  2. So interesting post having such good content.

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  3. Thanks for sharing this information. it is a use able information. this is a nice and good blog.

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  4. Thank you for sharing information with us! In the present world, most of the customers prefer readymade materials or items to be delivered at their home. Marketing, Induction sealing machine, and Buying are moving towards the Digitalization. In Digital Selling and Buying, the product needs to be packed and delivered from one part to the other part of the country safely without any damage. The high volume product demands need high quality and faster packaging. Various procedures of Sealing and Strapping have been adapted to deal with the needs in the market of the packaging industry.
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