OPTIMISATION OF THE SOUND ABSORPTION OF A TEXTILE MATERIAL

Abstract

Textile structures such as non-woven fabrics have been used as acoustic insulation since ancient times, however, including a fabric layer can significantly improve the aesthetic appearance. This article studies the influence of the filling threads that are commonly used in upholstery or quilted fabrics. The novelty focuses on evaluating the influence of these threads, in combination with different structural variables, on the acoustic insulation they provide. With the structures that incorporate filler threads, it is intended to offer optimized acoustic solutions that incorporate design, this will allow the development of products that can be used in the insulation of premises contemplating their decorative appearance, and not being used as a merely structural element. This article shows how thanks to the design of experiments it has been possible to define the productive variables of the fabric (warp and weft density, presence of quilting threads, etc.) that optimize the acoustic characteristics of the same.