By David A. Biro and Jim Bishop, Sun Chemical, USA Abstract Electron beam (EB) curing for wide web flexible package printing continues to evolve. Flexographic ink systems have been optimized to allow wet trapping of ink colors cured with a single electron beam unit after the last station in a central-impression press configuration. Long runs with stable printing performance … [Read more...] about Advances in Electron Beam Curing in Wide Web Flexible Package Printing
2016 Issue 3
Recent Advances in Low Viscosity, Low Migration, Fast Curing UV/EB Resin Technology
By Paul Share, senior product development scientist, printing and packaging, BASF Corporation Background Several critical issues drive technological developments in UV/EB resin technology today, particularly within the fast-growing area of food packaging1. These are summarized in Figure 1. High functionality resins are often used to address the need for higher cure … [Read more...] about Recent Advances in Low Viscosity, Low Migration, Fast Curing UV/EB Resin Technology
Association News
Sustainability Conference to be Held in Conjunction with SGIA Hosted by the Sustainable Green Printing Partnership, the 2016 Printing Industry Sustainability Conference will take place Sept. 13 in Las Vegas, Nevada. The 2016 Printing Industry Sustainability Conference is dedicated to showcasing the leading practices and emerging challenges print professionals need to know to … [Read more...] about Association News
Combining Oxiranes and Oxetanes to Enhance Kinetics and Improve Physical Properties
By Sara M. Kaalberg and Julie L. P. Jessop, Department of Chemical & Biochemical Engineering, University of Iowa Editors Note: The following received RadTech 2016's Best Student Paper Award at the event held May 16-18 in Chicago, Illinois. Abstract Cycloaliphatic epoxides (oxiranes) typically polymerize more slowly than acrylates and tend to be brittle. However, cationic … [Read more...] about Combining Oxiranes and Oxetanes to Enhance Kinetics and Improve Physical Properties
Design of New 3-ketocoumarins for UV-LED Curing
By Andrea Bernini Freddi, Marika Morone and Gabriele Norcini, IGM Resins, Gerenzano (VA), Italy Editor's Note: The following received RadTech 2016's Best Paper Award at the event held May 16-18 in Chicago, Illinois. Abstract Light-emitting diodes (LED) are becoming a valid alternative to Hg lamps in most radiation-curable applications. Matching photoinitiator absorbance with … [Read more...] about Design of New 3-ketocoumarins for UV-LED Curing