Journal of the Korean Society of Clothing and Textiles (한국의류학회지)

The Korean Society of Clothing and Textiles (한국의류학회)
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A Study on the Acoustical characteristics of Curtain Fabrics (part 1) -by Constructional Characteristics of Curtain Fabrics-

Curtain감의 음향특성에 관한 연구(제1보) -Curtain감의 구성특성을 중심으로-

  • Chung Un Ja (Department of Clothing and Textiles, Gyeongsang National University) ;
  • Kang Kyung Ja (Department of Clothing and Textiles, Gyeongsang National University) ;
  • Cho Hyun Hok (Department of Clothing and Textiles, Gyeongsang National University)
  • Published : 1979.11.01
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Abstract

The normal transmission characteristics of curtain fabrics were measured by sound level meter. Transmission coefficient was calculated by difference of incidence SPL and transmission SPL. The relation between this value and factors relating to the structure of curtain fabrics were investigated. The results of experiment were shown follow; 1. Transmission coefficients(approximately over $95\%$) of sound in curtain fabrics differ from according to the frequency. It was lower in 500Hz frequency, on the other hand, higher in 400, 640. 1000Hz frequency. It had a tendency to frequency among the samples. 2. The greater cover factor of sample was, the smaller the transmission coefficient of sound was. It was not influenced by thickness. 3. Air permeability was increased as the transmission coefficient of sound were greater. (correl. ation coefficient=0.83) 4. In the case of special single cloth weave(special honeycomb weave), there sometimes took place that transmission SPL was greater than incidence SPL.

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