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paperboard, material similiar in shape and composition to paper, but generally thicker, stronger, and more rigid. Paper machines, e.g., Fourdrinier machines, are used to make sheets of paperboard. Sometimes these machine-made sheets are pasted to each other or to paper sheets to build up special thicknesses. The function of a particular type of paperboard is often indicated by its name, e.g., boxboard. Paperboard can be made into a wide variety of items, including folding cartons, advertising displays, electrical insulators, and coasters.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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