Looking for alternative for teflon foil
Looking for alternative for teflon foil
(OP)
Hello all,
Some background: my company makes filling machines. The (PE) bags with the product are sealed by using so called sealing beams. The beams are pressed onto both sides of the bag and the bag is sealed using a heated element. To protect the bag, and to prevent that the bag sticks to the heating element, we use a teflon foil between the bag and the heating element. I will add some specification of the foil later. The heating elements are heated up, in high capacity machines, to about 600 degrees Celcius, or 1100 degrees Fahrenheit.
The problem is, that in some machines with high capacity, the telfon foil wears out too rapidly, primarily due too overheating.
My question is: is there a commercially available alternative for this teflon foil, with better heat resistance and similar non-sticking characteristics.
Some background: my company makes filling machines. The (PE) bags with the product are sealed by using so called sealing beams. The beams are pressed onto both sides of the bag and the bag is sealed using a heated element. To protect the bag, and to prevent that the bag sticks to the heating element, we use a teflon foil between the bag and the heating element. I will add some specification of the foil later. The heating elements are heated up, in high capacity machines, to about 600 degrees Celcius, or 1100 degrees Fahrenheit.
The problem is, that in some machines with high capacity, the telfon foil wears out too rapidly, primarily due too overheating.
My question is: is there a commercially available alternative for this teflon foil, with better heat resistance and similar non-sticking characteristics.





RE: Looking for alternative for teflon foil
RE: Looking for alternative for teflon foil
RE: Looking for alternative for teflon foil
Example: http://www.victrex.com/en/aptiv-films
H
www.tynevalleyplastics.co.uk
It's ok to soar like an eagle, but weasels don't get sucked into jet engines.
RE: Looking for alternative for teflon foil
One additional requirement: it needs to be foodgraded.
I'm not sure PEEK is an option in that regard, but I will check.
RE: Looking for alternative for teflon foil
http://en.wikipedia.org/wiki/Xylan_(coating)
RE: Looking for alternative for teflon foil
RE: Looking for alternative for teflon foil
Ideally the machine would last forever, require no maintenance, be infinitely fast, and free to operate. Obviously you will never achieve those targets, but you can always try to improve reliability, speed, and efficiency.
For all we know, the Teflon foil could be a "oh crap, the bags stick to our prototype and we've already completed the design, what do we do right now so we can ship these things" solution. I can buy a small bag sealer off the shelf that doesn't have sacrificial Teflon foil that requires maintenance. What does it use, how do they get away with it, and why do you feel you can't?
RE: Looking for alternative for teflon foil
RE: Looking for alternative for teflon foil
RE: Looking for alternative for teflon foil
RE: Looking for alternative for teflon foil
The teflon foils used to be damaged after one day of operation (60 cycles aprox)
I lower the voltage applied to the heating element and the problem was solved
RE: Looking for alternative for teflon foil
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Of course I can. I can do anything. I can do absolutely anything. I'm an expert!
RE: Looking for alternative for teflon foil
RE: Looking for alternative for teflon foil
But maybe you can lower a little the temperature and increase the sealing time and still achieve good bag closing
I am just telling you what I did and how I solved a similar problem
RE: Looking for alternative for teflon foil