Glossary

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Glossary of Terms


New to the paper industry? Use our useful paper glossary of terms below to help you define specific paper industry terms used in relation to papers and envelopes.

  • Sizes

    Series of finished trimmed sizes in the ISO international paper size range.

  • Abrasion Resistance

    Ability of a surface to resist rubbing or other frictional forces without being worn away. 

  • Acid Free Paper

    Paper which does not contain any free acid. Special precautions are taken during manufacture to eliminate acid in order to increase the longevitiy of the finished paper and to provide a sheet that is suitable for contact with metals.

  • Air Dried Paper

    Paper dried by a current of warm air after tub-sizing. 

  • Antique Grade Paper

    A quality bulky paper, particularly opaque, with a rougher surface finish. It can be made in white or in colours, be deckle edged, and either laid or wove. A good printing surface is a feature of this grade which is often used for quality books.

  • Art Paper

    This is a general term for higher quality woodfree coated papers which have a highly polished surface. Today the term is less used because of the introduction of more categories in the sector. However 'real art' is still used for those woodfree coated papers considered to be the highest of quality.

  • Ash Content

    Ash content is determined by amount of mineral fillers contained in paper. Stiffness of paper is reduced by increased ash content.