Tensile Breaking Strength

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A property of paper that indicates its ability to withstand a stretching force without breaking. The paper's maximum elongation due to tensile stress is expressed as a percentage of its original length. Paper has greater tensile strength in its grain direction. Although tensile breaking strength has little application to sheetfed printing processes, it is an important consideration in wrapping papers, packaging papers, business forms, web offset lithographic processes and other uses in which paper is subjected to high degrees of stretching. Tensile breaking strength is increased with increased fiber refining and fiber length, wet-pressing, and basis weight, and decreased with increasing addition of fillers to the papermaking furnish. (See also Wet-Tensile Breaking Strength, Wet Strength, and Tensile Energy Absorption.)