Tony Bean

No longer the new kids on the block, ultraviolet (UV) and electron beam (EB) technologies are firmly entrenched in the package printing industry. In the last decade, usage of UV/EB curing and inks has continued to grow to the degree that it can no longer be fairly characterized as new. Yet, many converters continue to ignore the benefits of UV/EB for no other reason than doing so would constitute change. packagePRINTING sat down with a few industry experts this month in an attempt to dispel some of the long-held misconceptions against UV/EB curing and inks. Myth: UV/EB materials are unsafe Tony Bean,

Industry experts weigh in on the who, what, when, where, and why of the post-cure process. by Jessica Millward, Associate Editor THE APPARENT "chemistry mystery" occurring after a UV ink is cured significantly impacts the appearance of a finished printed product. Supplier sleuthing has led to these conclusions: WHAT is (and what isn't) post-cure? Though used throughout the industry, the term "post-cure," in many cases, is technically a misnomer. Rob Stendahl, corporate technical support supervisor for Akzo Nobel, clarifies: "Post cure only takes place with cationic UV-curable inks. The more common type of UV inks is cured through a UV-induced free radical polymerization