VDI offers Evaporation / Vapor and web widths of 80 inches and thicknesses of 10 mil to 36GA (9 micron). Substrates include PET, Nylon, other web polymers, fabrics, and foils. VDI has an in-line plasma treater.
Aluminum vapor deposition capabilities range from 100 to 4,000 Angstroms, from 0.15 to 4.0 optical density, 70% visible light transmission to opaque, and resistance to meet varied needs. VDI is an evaporative metallizer with wire feed and boat capable.
In evaporative deposition, a source material is heated with a resistant source and since the chamber is under high vacuum, the material evaporates, traveling in all directions and lands on the substrate that is moving over it.
VDI’s capabilities enable it to provide tight tolerances and uniformity of metal deposition, cross web, down-web, and roll-to-roll. In addition, our in-line plasma treatment ensures improved metal adhesion in films using controlled VLT deposition. We have a maximum speed of 800 meters per minute.
What is Evaporative Deposition?
Evaporation is a popular method of thin-film deposition. The source material is evaporated in a vacuum, which allows vapor particles to travel directly to the target substrate, where they can then condense to a solid state.
Evaporative deposition involves heating the source material and condensing on a substrate. The evaporation takes place in a vacuum so that evaporated particles can travel directly to the deposited target without colliding with the background gas.
Quality of the deposited film depends on the purity of the source material as well as the vacuum. Thin film deposition is performed at very low pressures “high vacuum.”