Westech Industries, Inc.
Packaging Industry, Converting, Corona Treatment
Corona Treatment is generally applied to web surfaces whose normal surface tension is not sufficiently high to permit good wetting by inks and coatings used in many commercial applications. Corona Treating increases the surface tension of most materials by including molecular changes in the surface of the film. By applying concentrated energy (an electrical discharge) to the surface being treated, oxygen molecules break down and bond to molecules in the material being treated, increasing the surface energy. Measuring the change in the surface tension or the dyne level is facilitated by comparing the difference of the surface tension of the treated and non treated material.
, Converting Specialist
, Corona Treatment
, Packaging Industry