Tear strength
kLJTextile Testing Instruments, Testing Equipment Manufacturer Fabric tears when caught by a sharp object, and an instantaneous small hole can turn into a long tear with very little extra effort. This is the most common type of fabric strength loss in end use. Tear strength testing is a very important indicator for clothing items such as outdoor wear, workwear and uniforms.
kLJTextile Testing Instruments, Testing Equipment Manufacturer kLJTextile Testing Instruments, Testing Equipment Manufacturer Importance of tear strength test for fabric:
kLJTextile Testing Instruments, Testing Equipment Manufacturer Tear strength is the ability of fabric to resist tearing. Tear Strength
kLJTextile Testing Instruments, Testing Equipment Manufacturer
For textiles, body armor, cargo jeans, tents, apparel, bags and industrial applications. If the tear strength is high, this means that the perforations in the fabric are less likely to spread. Tear strength is crucial in heavy-duty technical textiles.
kLJTextile Testing Instruments, Testing Equipment Manufacturer kLJTextile Testing Instruments, Testing Equipment Manufacturer There are several methods to measure the tear strength, such as
kLJTextile Testing Instruments, Testing Equipment Manufacturer Tongue test
kLJTextile Testing Instruments, Testing Equipment Manufacturer Trapezium test
kLJTextile Testing Instruments, Testing Equipment Manufacturer Elmendorf test
kLJTextile Testing Instruments, Testing Equipment Manufacturer kLJTextile Testing Instruments, Testing Equipment Manufacturer A. Tongue Tear Strength of Fabrics
kLJTextile Testing Instruments, Testing Equipment Manufacturer In this test method, a cut is made on a rectangular sample and a tear is initiated. Cutting the material creates two tongues. Draw guides to indicate crack points. One tongue is placed on the upper jaw and one tongue on the lower jaw. As the test progresses, the jaws part and the fabric rips along the pre-cut area. kLJTextile Testing Instruments, Testing Equipment Manufacturer
kLJTextile Testing Instruments, Testing Equipment Manufacturer
kLJTextile Testing Instruments, Testing Equipment Manufacturer
B. Trapezoidal testkLJTextile Testing Instruments, Testing Equipment Manufacturer
The trapezoidal crack method is a test that generates stress along a reasonably defined line so that the crack spreads across the entire width of the sample. The trapezoidal tear strength of woven fabrics depends mainly on the properties of the yarns held in the clips. Since the individual fibers in nonwovens are more or less randomly oriented and are capable of some reorientation in the direction of the applied load, the mamaximum trapezoidal tear strength is reached when resistance to further realignment exceeds what is required to break one or more fibers. fibers at the same time. kLJTextile Testing Instruments, Testing Equipment Manufacturer
kLJTextile Testing Instruments, Testing Equipment Manufacturer
kLJTextile Testing Instruments, Testing Equipment Manufacturer
Elmendorf tear strength
Elmendorf tear tester measures by tearing a fixed length of sample. determine the tear strength. It consists of a sector-shaped crank that rotates on anti-friction ball bearings on vertical supports mounted on a rigid metal base. The principle of the test is quite simple: the pendulum is raised to a certain height. When the pendulum is released, it has a certain potential energy, at the bottom of the swing, the pendulum tears the sample, the pendulum loses the energy used to tear the sample. kLJTextile Testing Instruments, Testing Equipment Manufacturer
kLJTextile Testing Instruments, Testing Equipment Manufacturer
kLJTextile Testing Instruments, Testing Equipment Manufacturer
