Conclusion of Mr. Henry's Considerations Relative to the Nature of Wool, Silk, and Cotton, as Objects of the Art of Dying,
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Conclusion of Thomas Henry's essay on wool, silk and cotton as materials for dyeing, from the Repertory of Arts and Manufactures (1795). It finishes the step-by-step Turkey red (Adrianople red) process for cotton: galling, aluming with Roman alum and barilla liquor, maddering with sheep's blood, and the final nine-hour enlivening boil. Part Three then gives a chemical theory of mordants or bases, covering Hellot, Keir and Macquer on alum, the astringent principle of galls, animalizing cotton, and Henry's disagreement with Macquer about the alkaline mordant. It closes with remarks on black dyes made from iron and galls, including Lewis, Percival and the Dijon Academicians.
- Type
- Article
- Date
- 1795
- Language
- English
- Pages
- 27
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From Ralph Griswold's Digital Archive, delivered by the University of Arizona.
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