By Melissa DeDonder, writer, Peterson Publications, Inc. In the highly competitive world of retail, products need to stand out on the shelves. Brand owners, printers and packagers have a variety of decorative enhancement processes at their disposal, many of which incorporate UV/EB technology. One process that is beginning to flourish in the marketplace is Cast and Cure™, … [Read more...] about Cast and Cure: A Game-Changing Decorative Application Process
2015 Issue 3
EB Q&A: What Types of Processes are Possible Using Electron Beam Treatment of Materials?
by Stephen C. Lapin, Ph.D., PCT Engineered Systems The RadTech trade association and the associated conferences and publications traditionally have focused on UV/EB curing technology. Curing often is characterized by the rapid conversion of a layer liquid coating, ink or adhesive to a solid cross-linked polymer state. It is well known that free-radical UV curing requires a … [Read more...] about EB Q&A: What Types of Processes are Possible Using Electron Beam Treatment of Materials?
Mitigation of Oxygen Inhibition in UV-LED, UVA and Low-Intensity UV Cure
By Dr. Jo Ann Arceneaux, Allnex USA Inc. Introduction Oxygen inhibition is an age-old problem for coatings that cure via free-radical polymerization. Molecular oxygen can physically quench the triplet state of the photoinitiator/sensitizer, or it can scavenge the free radicals or active radical centers to produce unreactive peroxide radicals. The end results range from … [Read more...] about Mitigation of Oxygen Inhibition in UV-LED, UVA and Low-Intensity UV Cure
Regulatory News
Nationwide Regulatory & Sustainability Updates SGP and Wisconsin Green Tier Program – A Match is Made In late September, the Flexographic Technical Association (FTA), Specialty Graphic Imaging Association (SGIA) and Great Lakes Graphics Association (GLGA) will be signing a charter with the Wisconsin Department of Natural Resources (WI DNR) to formalize the Sustainable … [Read more...] about Regulatory News
UV-Activated Reactive Film Adhesives
By Dr. Donald Herr, Adhesives Research, Inc. and Robert Wigdorski, retired, Adhesives Research, Inc. Introduction For both liquid and solid/film thermally curable adhesives, a trade-off typically exists between cure temperature and shelf life. Generally, the more chemically active a thermally curable adhesive, the shorter its shelf life at ambient temperatures – as is … [Read more...] about UV-Activated Reactive Film Adhesives