Glossary

What is roll unwind?
Unwind describes how a label presents on the roll as it feeds. It’s how you avoid upside-down labels. Read more...
What is roll outer diameter (OD)?
OD is the maximum outside diameter of the roll. Your machine has a limit — exceed it and you jam. Read more...
What is roll core size?
Core size is the inside diameter of the roll. If you get it wrong, the roll doesn’t fit the printer/applicator. Read more...
What is die-cut vs kiss-cut (and why does it matter)?
Die-cut vs kiss-cut changes application speed, protection, and how the label is delivered. Here’s the difference. Read more...
What is PET (polyester) label stock?
PET is a tougher film stock used when heat, chemicals, or long-life durability matter. This is the plain-English definition. Read more...
What is BOPP (polypropylene) in label printing?
BOPP is a common film label stock used for waterproof, oil-resistant product labels. Here’s what it is and when it wins. Read more...