Basis Weight - The weight in pounds per ream (500 sheets) in the basic size for a specific grade of paper.

Calendering - A general term meaning pressing with a roll. The last operation on the drying machine before the paper is wound on reels. Machine calenders are stacks of vertical cast steel rolls that have polished ground surfaces. The paper enters the stack at the top and is compacted and smoothed progressively as it travels down the stack.

Glassine - Translucent, smooth, grease-resistant paper made from highly beaten chemical pulps, subsequently supercalendered.

Linerboard - Kraft paperboard, generally unbleached, used to line or face corrugated core board (on both sides) to form shipping boxes and various other containers.

Machine Finish (MF) - Finish that is obtained while the paper is on the paper machine. Different finishes are obtained by the number of times the paper is passed through rollers, either dry or wet.

Machine Glaze (MG)- Known as MG papers, these are paper that appear to have a glazed finish on one side and a rough finish on another. Process occurs on a Yankee dryer when wet paper comes into contact with a steam-heated, smooth roller. Pressure is applied by the roller to the paper.

Supercalendering - A finishing process that imparts gloss and smoothness to the surface of the paper by passing the web through a stack of alternating steel and filled (cotton or synthetic) rolls.

Wet-Strength - Paper in which the fiber constituents and/or the sheet are chemically treated to enhance resistance to tear, rupture, or disintegration after becoming saturated with liquids.