The objective measurement of the 'cool feeling' in fabrics

P. J. Weedall, L. Goldie

Research output: Contribution to journalArticle

5 Citations (Scopus)

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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