If you have a receipt in your wallet right now, it may be carrying more than proof of purchase. The thin thermal paper used in most checkout systems is a major source of exposure to hormone disrupting ...

Every day, millions of people use thermal paper without thinking about it. Receipts, shipping labels, tickets, and medical records all rely on heat‑sensitive coatings to make text appear. More ...

Thermal receipts and tickets are so ordinary that most of us barely glance at them before they land in a pocket or trash can. Yet those small slips of paper are a major source of contact with ...