by Marcelo Augusto Gonçalves Bard1, Rafael Auras2 and Luci Diva Brocardo3 Machado, 1Grupo de Pesquisas em Meio Ambiente e Sustentabilidade (GPMAS), Universidade São Francisco (USF); 2School of Packaging, Michigan State University (MSU); 3Comissão Nacional de Energia Nuclear (CNEN), Instituto de Pesquisas Energéticas e Nucleares (IPEN) Editor's Note: A member of the UV+EB … [Read more...] about Real-Time Composting of Polymers Coated with UV Radiation-Cured Printing Inks
UV Curing
Q&A: Are there different ways to use radiachromic films?
By R.W. Stowe, UV applications engineering consultant, Heraeus Noblelight America LLC Since discussing the use of radiachromic films in UV+EB Technology,1 we have received a few questions on various methods of using them. There are essentially two types of radiachromic films, but the easiest to use are films or tabs whose surface is coated with a photochromic coating. … [Read more...] about Q&A: Are there different ways to use radiachromic films?
Non-Reciprocity of Exposure of UV-Curable Materials and the Implications for System Design
By R. W. Stowe, UV applications engineering consultant, Heraeus Noblelight America LLC Abstract Using exposure data of various (mostly commercial) coatings, inks and paints, this study demonstrates that differences in irradiance profile will result in different material behavior (properties) and, consequently, exposure requirements. Using various quantifiable performance … [Read more...] about Non-Reciprocity of Exposure of UV-Curable Materials and the Implications for System Design
Three-Dimensional and Uniform UV Curing Using Integrating Sphere Technology
By Thomas Efsen, managing director, Efsen UV & EB Technology An integrating sphere uses multiple diffuse reflections of light incident on the sphere inner surface to homogenize the light over the entire surface (Figure 1). This results in uniform irradiance at all points on the interior surfaces of the integrating sphere. This has been applied to UV curing by … [Read more...] about Three-Dimensional and Uniform UV Curing Using Integrating Sphere Technology
FDA Weighs In on UV Curing Nail Lamps
By Doug Schoon, president, Schoon Scientific The facts demonstrate that UV curing nail lamps are safe, despite repeated attacks by the misinformed media, fear-mongers and TV celebrity doctors. What started the controversy about nail lamps in the first place? In 2009, two dermatologists from sunny Texas (MacFarlane and Alonso1) claimed that the nonmelanoma skin cancers on … [Read more...] about FDA Weighs In on UV Curing Nail Lamps