As someone who formulates UV-curable inks and coatings and not formally affiliated with a large ink manufacturer, I have the freedom to speak plainly about what makes these systems safer, and what’s just…..well,… noise. Is TPO Bad?   Heck no!  But lately, I’ve seen social media posts claiming that UV inks and coatings would be “safer” if we simply replaced the photoinitiator trimethylbenzoyl diphenyl phosphine oxide, aka TPO, with another like TPO‑L or BAPO.   However, we mig