News

Home > News

3 types of common textile testing instruments

3 types of common textile testing instruments

Textile testing equipment is a means for the development of textile production. It has gradually developed from simple testing tools to manual mechanical testing equipment, and then developed into a modern testing equipment combined with electromechanics. In addition to using human senses to evaluate the quality of silk fabrics, five-color pheasant feathers are also used as the color standard for evaluating fabric dyeing.
 
 
1. Mechanical property testing equipment 
 
To test various properties of textile materials under the action of mechanical external force, there are tensile property test instruments and abrasion resistance test instruments.
 
 
2. Tensile property testing equipment 
 
There are three types:
① Constant speed extension type (CRE):
The deformation rate per unit time of the specimen remains constant during the tension process;
 
② Constant load type (CRL):
The load increase rate when the sample is stretched basically remains constant;
textile & fabric
③Constant Speed ​​Traction (CRT):
When the specimen is pulled by the lower clamp, the upper clamp also has an irregular displacement according to the stress-strain characteristics of the material. The constant velocity traction type instrument appeared early and widely used, belonging to the mechanical type, often called the pendulum powerful machine. Using appropriate fixtures and automatic recording devices, multiple tensile properties can be tested. However, because the inertia of the pendulum and the strain rate per unit time vary with the stress-strain characteristics of the material, the accuracy of the instrument is low and the comparability is poor. The representative of the equal load type instrument is the inclined plane strength machine, which can be used to determine the tensile properties of fibers and yarns. Among them, the electromechanical inclined plane strength machine can continuously and automatically stretch 10 bobbins according to the specified number of tests and exchange bobbins. At the same time, it can also draw graphs of breaking strength and breaking elongation. The instrument is equipped with a data processing system, which can directly print out the test results. At the end of the 1970s, a constant-speed elongation electronic full-automatic single-yarn strength meter was developed, which uses strain-type sensors to measure force, with high accuracy and automation, low inertia and full functions. According to the different capacity, it can be divided into general type and special type. The universal instrument can measure the tensile properties, elasticity and compressibility of fibers, yarns and fabrics by changing sensors of different capacities. If equipped with appropriate accessories, shear, bending and friction performance tests can also be carried out. This kind of instrument is sometimes called a universal strength tester, which can digitally display, automatically process data, and print out test results. Some models of instruments are also attached with high and low temperature test devices. The desktop single-fiber electronic strength meter successfully developed in China is a special type with a maximum capacity of 100 grams force, which can be digitally displayed and automatically recorded, and some can also print out the average number of tensile properties and the coefficient of variation. In the 1980s, a fully automatic short fiber strength tester was made. A variety of test results can be obtained by testing with a tensile property tester, such as breaking strength, breaking elongation, multiple tensile fatigue, constant load or constant elongation elasticity, and fabric tearing strength, bursting strength, and sewing strength Wait. In addition, the initial modulus, work of fracture and other indicators can be calculated by using the record drawings.
 
 
3. Abrasion resistance testing equipment 
  
 
The abrasion test can predict the abrasion resistance of textile materials in spinning, weaving and other processing procedures and the degree of wear resistance during wearing. Abrasion resistance testers are used for filament and staple fiber yarns, as well as for fabrics. There are many types of fabric abrasion testers, including flat grinding (rotary, inflatable, reciprocating flat, reciprocating drum), and curved grinding. , Hemming grinding and accelerated grinding, etc. Figure 3 The rotary fabric flat grinder is a rotary fabric flat grinder. The wear motion mode and abrasives of the wear resistance tester are mostly designed to imitate the actual usage. The indicator of the wear resistance of textile materials is generally expressed by the number of wear to break, the change of certain properties (strength, weight, etc.) after a certain wear, or the number of wear resistance when the fabric wears holes.
 
 
QINSUN is an international manufacturer of textile testing equipment, which sells well in India, Pakistan, the United States, Britain and other places. You can go to the website to get the machine parameters

Message