by Tom Kirkland Plastic welding is usually the last step in an entire sequence of manufacturing processes. It is also last in a sequence of design decisions that must logically begin and end with utility, marketability, and profitability. This means that, unfortunately, the possibility of obtaining laboratory-like optimal joint strength in the finished product is next to nil. … [Read more...] about Plastic Welding: Optimal Joint Strength is Rare in the Real World
2006 Oct/Nov
UV Curable Inks and Special Effect Decorative Pigments
by Scott Sabreen Question: UV-curable Inks We are considering changing from heat curing inks to UV to speed up our printing process lines. Will UV ink stick to polyethylene, and how does the process work? UV inks can achieve excellent adhesion to polyethylene using a surface pretreatment such as corona discharge or flame treatment. Note that some pigment colors may be … [Read more...] about UV Curable Inks and Special Effect Decorative Pigments