• info@eltech.in
  • +91-96196 86917, +91-84509 80333

During high speed treatment processes, if the substrate wrap angle is less than 180 degrees then because of the venturi effect, a differential pressure sets in which tries to lift us the substrate from the roller. As a result of this, air beneath the substrate also gets ionized and the opposite side gets treated which sometimes is not desirable in case of heal-seal application. Also back side treatment can be caused, if the surface of the roller is kept unclean or if there are dents or pits formed onto the surface of the roller due to corrosion. Backside treatment can be avoided by using a nip roller at the entry of the film onto the Treater roller which ensures that a good wrap angle is established between the substrate and the treater roller. Also the surface of the treater roller needs to be kept clean at all times to prevent the unwanted backside treatment.

Eltech Engineers Pvt. Ltd. , Corona FAQs, Mumbai, India

Call Now!
Mail Us!