54—CHARACTERIZATION OF THE CORTICAL STRUCTURES OF KERATIN FIBRES BY UREA-BISULPHITE SOLUBILITY
54—CHARACTERIZATION OF THE CORTICAL STRUCTURES OF KERATIN FIBRES BY UREA-BISULPHITE SOLUBILITY
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DOI：
10.1080/19447026008662514
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发表时间：
1960-12
期刊：
影响因子：
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通讯作者：
J. H. Dusenbury
中科院分区：
文献类型：
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作者：
J. H. Dusenbury
The urea-bisulphite-solubility test has been examined to determine its utility for characterizing the cortical structures of keratin fibres with respect to their ortho-para natures. Low values for urea-bisulphite solubility (ca. 15%) are exhibited by human hair, previously considered a para fibre; intermediate values (45—55%) by crimped, apparel wool fibres, previously considered ortho-para with bilateral asymmetry; and high values (ca. 75%) by kid mohair, previously considered chiefly ortho. The results of measurements of rates of fibre attack by the urea-bisulphite reagent and of microscopical observations of the treated fibres are in accord with these views. The urea-bisulphite solubilities have also been measured for B.A. fleece and Lincoln wools, cashmere, vicuna, and alpaca; the results are discussed. The effect of prior heating of a crimped, apparel wool has been found to be that of decreasing urea-bisulphite solubility; the solubility decreases smoothly with increasing times of heating, and the ef...
