What is described as a dramatically new technology for pretreating and functionalizing plastic films will see its U.S. debut at the NPE show in Chicago next month. Already used in Europe, the patented Calvasol aerosol system was developed in Germany by the Kalwar Group. It is available here from Lectro Engineering, St. Louis, which supplies Kalwar’s Calvatron corona treaters. The Calvasol system places the corona-discharge device in a “misting chamber.” Fine droplets of chemicals are dispersed as an aerosol directly into the corona energy field. This is said to firmly anchor the nanoscale droplets to the web surface. This system is said to impart a long-lasting adhesion effect to film surfaces, whereas standard corona treatment fades with time. This approach can also be used to add an antistatic effect that is not dependent on humidity or on migration of additives. Calvasol can also be used for antifogging. (314) 567-3100 • www.lectrotreat.com
Lectro Engineering Co.
1643 Lotsie Blvd. St. Louis, MO 63132-1427
Phone (314) 567-3100 Fax (314) 567-3466