Monday, February 4, 2013

TEXTILE PHYSICS TERMS OF IMPORTANCE

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Liner density : The mass per unit length of linear textile material.
Count: Methods of variously expressing the specific length or length per unit mass of a yarn. Also termed liner density, number of yarn, yarn count, yarn number, grist
Denier: Weight in grams of 9000 meter of linear textile material.
Tensile Strength: Tensile strength is the ability of a material to withstand tension.
Tenacity: In case of fibers or yarns strength is measured as tenacity and is expressed in terms of force per unit linear density i.e. grams per denier.
Tensile Test: A test in which the resistance of a material to stretching in one direction is measured
Breaking elongation, breaking extension: The elongation or extension of a substance at its breaking load.
Breaking load, breaking force: The load that develops the breaking tension. The recommended unit of measurement is the Newton.
Breaking length: The length of a specimen whose weight is equal to the breaking load.
Breaking Stress: The maximum stress developed in a specimen stretched to rupture. The force is usually related to the area of the unstrained specimen. If the actual stress defined in terms of the area of the strained specimen  Is used then its maximum value is called the actual breaking stress.
Breaking Tension: The maximum tension developed in a specimen stretched to rupture. It is correctly expressed in Newton’s
Specific stress (formerly mass-stress): The ratio of force to the liner density. This ratio is equal to the stress per unit density and is expressed as mN/dtex or N/tex.
Count-strength product (CSP): The product of the lea strength and the actual count of cotton yarn.
Degree of polymerization (DP): The average number of repeating units in the individual macromolecules in a polymer.
Shrinkage: The reduction in length (or width) of a fiber, yarn or fabric. It may be induced by e.g. wetting, steaming, alkali treatment, wet processing as in laundering or dry heat.
These are the above textile physics Terms...

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