Effect yarn in textile processing and in the process of taking the fabric are subjected to bending moment, bending deformation. Yarns and fabrics are superimposed bending the bending and fiber interactions between fibers themselves. Interaction between the fibers showed twist in the yarn yarn and yarn transfer and floating point performance for long intertwined in the fabric. Bending performance fiber itself is the fundamental factor of yarn and fabric bending, but limit the scope of measurement methods and making textile yarn bending evaluation remains at this level. In the solid appearance of a drop of liquid to be solid - liquid - gas balance of the balance after the three-phase interface system photography software supplied through the contact angle measurement methods were the contact angle measurements. Also able to test the process of balancing processes punctuality photography or video, then the system change process to analyze the interfacial tension meter according to the principle can be divided into two kinds: Platinum Circle law and platinum plate method. Platinum Circle method is a traditional test methods, from discovery to the present time about 70 years or so. It is made of platinum wire perimeter of a certain ring. By testing the first two Platinum Circle immersed not mixed liquid interface (or liquid) 2-3mm, then slowly lift up Platinum Circle, ring and liquid will form a film. Film on Platinum Circle will have a pull down force on the entire process of measuring mention Platinum Circle film role in the ring for the most vigorous wholesale value of the contact angle measurement, and then converted into a real interface (surface) tension. History platinum plate method applied to 20 years in a foreign country is not, even late into the country. Based on the surface of the platinum plate method / interfacial tension meter technically demanding, difficult to manufacture, domestic users really are still widely used in recent years as domestic automatic surface platinum plate method / interfacial tension meter successfully developed and put into the market. Platinum plate method is to use 24mm × 10mm × 0.1mm platinum plate, blasting roughened surface contact angle measurement offer, as is better wetting with the liquid to be measured. When testing the platinum plate lightly touch the screen (or surface), due to the liquid surface tension effects will pull down the platinum plate using contact angle measurement, when the surface tension of the liquid and other related test equipment reverse force When the force reaches equilibrium, the test value is stable and unchanging, if distilled water, ethanol and the like pure substance, the entire testing process fastest only a few seconds. Contact angle measurement wholesale | ShengDing instrument (certified) | contact angle measurement provided by the Dongguan Sheng Ding Precision Instrument Company. Dongguan Sheng Ding Precision Instrument Co., Ltd. (www.dgshengding.com) is Dongguan, Guangdong, dedicated instrumentation leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Sheng Ding instrument in leadership with the staff warmly welcome all inquiries negotiations to create ShengDing instrument a better future.