The objective measurement of the 'cool feeling' in fabrics

P. J. Weedall, L. Goldie

Research output: Contribution to journalArticle

Abstract

The research reported in this paper attempts to evaluate the relationship between objectively measured thermal properties of fabrics and the subjective assessment of a warm-cool feeling. The thermal characteristics of maximum heat flux, Qmax, and thermal absorptivity, b, were measured by using the Alambeta T675 instrument for a wide range of fabrics. These fabrics were then subjectively ranked for their warm-cool feeling by sixteen judges. The results indicated that the values of Qmax and b did not correlate well with subjective assessments when fabrics of different fibres were evaluated. When fabrics with a common fibre were used, both Qmax and b were directly related to this warm-cool feeling, with b providing the better correlation. For a panel of judges to rank fabrics of the same fibre type in the same order as the objective measurements, a step value between fabrics of 0.2-0.3 W m-2 was required for Qmax. The step value required for b was less clear, but good correlation with subjective assessments was found with step values in the region of 16-37 W m-2 K-1 s1/2 for b. © Textile Institute.

Original languageEnglish
Pages (from-to)379-386
Number of pages8
JournalJournal of The Textile Institute
Volume92
Issue number1 PART 4
Publication statusPublished - 2001

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Weedall, P. J., & Goldie, L. (2001). The objective measurement of the 'cool feeling' in fabrics. Journal of The Textile Institute, 92(1 PART 4), 379-386.
Weedall, P. J. ; Goldie, L. / The objective measurement of the 'cool feeling' in fabrics. In: Journal of The Textile Institute. 2001 ; Vol. 92, No. 1 PART 4. pp. 379-386.
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Weedall, PJ & Goldie, L 2001, 'The objective measurement of the 'cool feeling' in fabrics', Journal of The Textile Institute, vol. 92, no. 1 PART 4, pp. 379-386.

The objective measurement of the 'cool feeling' in fabrics. / Weedall, P. J.; Goldie, L.

In: Journal of The Textile Institute, Vol. 92, No. 1 PART 4, 2001, p. 379-386.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The objective measurement of the 'cool feeling' in fabrics

AU - Weedall, P. J.

AU - Goldie, L.

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AB - The research reported in this paper attempts to evaluate the relationship between objectively measured thermal properties of fabrics and the subjective assessment of a warm-cool feeling. The thermal characteristics of maximum heat flux, Qmax, and thermal absorptivity, b, were measured by using the Alambeta T675 instrument for a wide range of fabrics. These fabrics were then subjectively ranked for their warm-cool feeling by sixteen judges. The results indicated that the values of Qmax and b did not correlate well with subjective assessments when fabrics of different fibres were evaluated. When fabrics with a common fibre were used, both Qmax and b were directly related to this warm-cool feeling, with b providing the better correlation. For a panel of judges to rank fabrics of the same fibre type in the same order as the objective measurements, a step value between fabrics of 0.2-0.3 W m-2 was required for Qmax. The step value required for b was less clear, but good correlation with subjective assessments was found with step values in the region of 16-37 W m-2 K-1 s1/2 for b. © Textile Institute.

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