Fiber Strength and Tester in Textile



Fiber strength refers to the ability of fiber to resist external damage, which largely determines the durability of textile products.

Common indicators

Fiber strength: Absolute strength, the maximum load that a fiber material can bear when it is stretched to break. Unit: Newton, Centinewton (1 Newton = 102 centinewton).
Elongation: Elongation at break, the percentage of the elongation of the fiber material to the original length before stretching when it is stretched to break.
Constant elongation load: Under specified conditions, the force required to make the fiber material and its products reach a certain elongation. Expressed in Newton.
Specific strength: The strength calculated by unit mass is called specific strength. The specific strength unit is expressed in gf/tex or cN/tex.
Initial modulus: The initial modulus refers to the modulus of the yarn at the point where the external force is equal to the pretension, and refers to the ratio of the stress to the strain of the straight line segment at the beginning of the fiber tensile curve. The size of the initial modulus indicates the ease of deformation of the fiber under a small load, that is, the rigidity of the fiber. The initial modulus of the fiber is an important factor determining its bending performance. Generally, the lower the initial modulus, the softer the fiber, and the more suitable the fabric is for next-to-body wear.
Specific work of breaking: One is the work required to break a unit volume of fiber. Specific power to break by weight Ww refers to the work required to break the fiber material per unit linear density and unit length.
The coefficient of variation is a statistic that measures the degree of variation of each observation. When comparing the degree of variation of two or more data, if the measurement unit is the same as the mean, the standard deviation can be directly used for comparison. If the unit and (or) the mean are different, the standard deviation cannot be used to compare the degree of variation, but the ratio (relative value) of the standard deviation to the mean should be used for comparison. The ratio of the standard deviation to the mean is called the coefficient of variation

Fiber Strength Tester

YG003E / YG005E Electronic Single Fiber Strength Tester
​YG003E / YG005E Electronic Single Fiber Strength Tester is used to determine the breaking strength and elongation at break of single textile fibers, such as, cotton, wool, ramie, silk, glass fibber and chemical fibers. It’s a useful fiber testing machine.

YG011 Fiber Bundle Strength Tester (Stelometer)
YG011 Fiber Bundle Strength Tester (Stelometer) is used to check the holding strength and elongation at breakage of fiber tufts. Holding strength reading is on a graduated scale from 0 to 7 kPa (step 0.1kPa), elongation reading is on a graduated scale from 0% to 50%.

KX101 Pressley Fiber Strength Tester
KX101 Pressley Fiber Strength Tester is widely used in the inspection work of international cotton trade handover owing to its exquisite structure, simple operation and fast testing speed. It’s an inclined plane fiber strength tester with a free-sliding hammer designed to break flat bundle of cotton fibers and to indicate the load required to cause the rupture of the flat bundle. Based on the principle of moment balance, the breaking load value of cotton fiber is indicated by the sliding distance of the hammer travels on the track.

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