Determination of tearing properties of textile materials

Determination of the tearing performance of fabrics The tearing refers to the phenomenon that the product is torn apart by the concentrated load. The tear test of the fabric is often used for woven fabrics such as military uniforms, tents, sails, umbrellas, hammocks, etc. It can also be used to evaluate the durability of the fabrics after resin finishing, additives or coating finishing. The tear test is not applicable to woven elastic fabrics, knitted fabrics, and fabrics with large differences in warp and weft directions that may produce tear transfer and sparse fabrics. GB / T 3917-1997 stipulates three test methods for fabric tearing performance, tongue-shaped sample method, trapezoidal sample method and impact pendulum method. The impact pendulum method is particularly important. The mechanism of impact pendulum tearing is similar to that of the single-tongue sample method, but the speed of stress is fast, which belongs to impact tearing.
Shanghai Qingji Instrument Company focuses on the research and development and production of testing equipment for textile products, such as fabric impact testing machine, fabric tensile testing machine, fabric testing testing machine, fabric burst tester, adhesive liner peel strength testing machine, fabric tear test Machine, fabric puncture testing machine and other equipment, as well as some products with special mechanical property testing equipment. The overall design of the testing machine incorporates the advanced technology of the tilting instrument. It has simple and convenient operation, beautiful appearance, and stable and reliable performance. Welcome new and old customers to call us or visit our factory to discuss business. For more product details, please see http: //.

PVC Backpack

Pvc Backpack,Pvc Book Bag,Pvc Sling Bag,Clear Pvc Backpack

Ningbo Happiness Stationery Industrial & Trading Co Ltd , https://www.nbcnhappiness.com