Textile compression materials elasticity

PUs are widely used in the manufacture of flexible foam materials. In the textile industry, these polymers have been made into fibers with excellent elasticity. Spandex, which is a PU-based elastic fiber, has been incorporated into a wide range of textile fabrics, including elastic stockings for compression therapy. 

Textile-based compression materials include elastic bandages, stockings, and garments that are designed to exert external pressure to the human body. The main product performance is the force-elongation behavior, which is related to the fabric structure, yam composition, and fiber type. For elastic compression materials. 

Grease Retention, Wrinkle Resistance, and Durable Press. On bending or creasing of a textile material, the external portion of each filament in the yam is placed under tension, and the internal portion is placed in compression. Thus, the wrinMe-recovery properties must be governed in part by the inherent, tensional elastic deformation and recovery properties of the fibers. In addition to the inherent fiber properties, the yam and fabric geometry must be considered. 

Compression pressure is normally stated as millimeters of a mercury colunrn (mmHg). The value of the compression pressure for elastic textile materials can be determined according to the Laplace law in the eqnation P = S/R, where P is the compression pressure, S is the tension of the textile (in Newton per centimeter of bandage width), and R is the radins of the enclosed extremity. This means that the smaller... 

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