Tensile strength of paper and board

Tensile strength refers to the tension of paper or cardboard. It is usually expressed as absolute tensile resistance: the tensile strength (Newtons) of a sample of a certain width; or the length of a crack: the length of paper required for a certain width of a piece of paper to break when the paper is broken under its own weight. ); Or with the transverse section of the tensile strength; that is, the tensile strength of the sample unit cross-section (Newtons / meters 2) said. Tensile strength is one of the important parameters in physical properties. It is also a basic test. Tensile strength is more complex. It is a component of burst strength, tear resistance, and flex resistance, and is a function of tensile strength, thickness, and quantitation. There are four main factors that make up the paper's tensile strength: the strength of the fiber bond; the average length of the fiber; the interlacing coefficient of the internal tissue direction of the fiber: the original strength of the fiber. The size and nature of the fiber binding force are the most important conditions affecting the effective tensile strength. The tensile strength index is important for newsgroups and printing press papers, because the high tensile strength of the hinge helps to withstand the traction of the press. Tensile strength is also an important property of paper bags and wrapping paper. Pitch-impregnated papers require high tensile strength to withstand the pressure that the impregnated paper undergoes during floating and drying. The tensile strength of other paper ropes and cable papers is also particularly important.