Abstract

Utilizing textile-based acoustic materials can be considered basically from two points of view. First, it may be used as a sound absorbing material. Second, it may be used as a decoration that gives the surrounding area a new artistic appearance. To improve the acoustic possibilities of any woven fabric, it is necessary to study the influences of yarn characteristics and the internal structures of weave interlacement. To understand the impact of the yarn on the fabric, the samples were prepared using only polyester fiber as textured, twisted, and staple yarns. Regarding this experiment, the basic weave’s structure type, such as plain, rib, sateen, and twill, were used. Overall, 16 woven fabrics were prepared. The investigation was performed in the range of low to medium acoustic frequencies. The experiments were conducted in an anechoic chamber. Compared to other yarn types, fabrics formed from textured polyester yarn had higher sound absorption properties. Moreover, the observed results show that the different incidence angles of acoustic signals influence the measured sound absorption properties of a textile.

Highlights

  • Noise absorption materials are categorized based on resonance absorption, membrane absorption, and porosity absorption

  • The fabrics formed from twisted yarn have the smallest sound level drop at a low frequency between 63 to 250 f(Hz) in comparison to fabrics formed from staple yarn and textured yarn

  • The comparison between the yarns indicates that the fabrics which are formed from twisted yarn and textured yarn have comparable low air permeability results

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Summary

Introduction

Noise absorption materials are categorized based on resonance absorption, membrane absorption, and porosity absorption. The attenuation of the noise by woven material depends on the parameters such as the thickness of the fabric, yarn type and characteristics, interlacement type (weave structure), weaving process parameters, and amount of porous space. Micro-porosity is created by a gap between fibers in the yarns, and macro-porosity is formed between the yarn strands It is primarily determined by the degree of interlacement and the weave type. Filament counts, and weave structures for sample preparation enable us to better understand the role of yarn and fabric properties in textile-based acoustic materials. The results of the responses of the woven fabrics to sound transmitted in different angle directions demonstrate the need for more precise applications of textile-based noise reduction materials in the future

Materials
Description of Methodology
Physical Characteristics of Yarn and Fabrics
Air Permeability Test
Acoustic Tests
Results
Result
Overall
Comparison of the Sound Pressure Level Drop According to Different Angles
Summary and Conclusions
Full Text
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