Glossary
Paper glossary
Plain definitions of the paper terms buyers meet on specification sheets: GSM, MG, MF, OGR and more.
11 terms
Every term, A to Z
- Basis weight
- Basis weight is the weight in pounds of a ream of 500 sheets of paper at the basic sheet size for its grade.
- Converting
- Converting is the work of turning reels and sheets of paper into finished products, such as bags, labels, wraps and boxes.
- Core diameter
- Core diameter is the inside diameter of the tube a paper roll or reel winds on, which decides the shaft or chuck the roll fits.
- Deckle
- Deckle is the usable width of the paper web a machine makes in one pass.
- Interleaving
- Interleaving is placing thin sheets of paper between stacked layers of product, so the layers stay separate and clean.
- Jumbo roll
- Jumbo roll is the trade name for a large parent reel of paper, wound at the mill and later slit or rewound into smaller rolls.
- KIT value
- KIT value is a number from 1 to 12 rating how well a paper resists grease in the TAPPI T 559 kit test.
- Migration test
- Migration test checks whether substances move from food packaging into food or a test medium under stated conditions.
- MOQ
- MOQ, or minimum order quantity, is the smallest amount a supplier ships in one order of a given grade, weight and size.
- Ream and reel
- Ream and reel are the two ways paper is packed: a ream is a pack of sheets, and a reel is one continuous roll.
- Slitting
- Slitting is cutting a wide reel of paper lengthwise into narrower reels on a slitter rewinder.