Method of Producing Needlepunched Nonwovens Having Increased Tensile Strength

The technological foundation for producing high-porosity fibre material with increased tensile strength is developed using the results of investigation of the mechanism of stretching of needlepunched nonwovens. The current methods of treatment of needlepunched materials are analyzed and they are shown to be not effective enough for producing high-porosity materials. A compounding and technological approach is developed for producing high-porosity materials with improved tensile strength.