Fiber-safe extraction of red mordant dyes from hair fibers

Erica J. Tiedemann; Yiqi Yang

doi:10.1179/019713695806124657

Fiber-safe extraction of red mordant dyes from hair fibers

Erica J. Tiedemann, Yiqi Yang

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

To extract red mordant dyes from wool fiber samples, a new method was devised using a solution of 0.1% ethylene diamine tetraacetic acid in water combined with N, N-dimethyl formamide. This method, which was tested on madder, Relbunium, and cochineal dyestuffs having an alum mordant, enabled the authors to analyze the extracted dyes with spectrophotometry for their characteristic absorption curves and also left the fibers sufficiently intact for use in further examinations. The new method is compared with previous dye extraction methods. A case study of its application on samples of pre-Columbian cameloid fibers is presented.

Original language	English (US)
Pages (from-to)	195-206
Number of pages	12
Journal	Journal of the American Institute for Conservation
Volume	34
Issue number	3
DOIs	https://doi.org/10.1179/019713695806124657
State	Published - Jan 1995
Externally published	Yes

ASJC Scopus subject areas

Conservation
Museology

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abstract = "To extract red mordant dyes from wool fiber samples, a new method was devised using a solution of 0.1% ethylene diamine tetraacetic acid in water combined with N, N-dimethyl formamide. This method, which was tested on madder, Relbunium, and cochineal dyestuffs having an alum mordant, enabled the authors to analyze the extracted dyes with spectrophotometry for their characteristic absorption curves and also left the fibers sufficiently intact for use in further examinations. The new method is compared with previous dye extraction methods. A case study of its application on samples of pre-Columbian cameloid fibers is presented.",

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AB - To extract red mordant dyes from wool fiber samples, a new method was devised using a solution of 0.1% ethylene diamine tetraacetic acid in water combined with N, N-dimethyl formamide. This method, which was tested on madder, Relbunium, and cochineal dyestuffs having an alum mordant, enabled the authors to analyze the extracted dyes with spectrophotometry for their characteristic absorption curves and also left the fibers sufficiently intact for use in further examinations. The new method is compared with previous dye extraction methods. A case study of its application on samples of pre-Columbian cameloid fibers is presented.

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