Indigoid Dyes

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Indigoid Dyes

a group of vat dyes closely resembling indigo in structure and used to dye cellulose and protein fibers as well as for cotton printing. These dyes cover a broad range of the color spectrum, from orange to black. Their resistance to light and water are rather high but inferior to that of polycyclic dyes. Indigo and thioindigo are characteristic indigoid dyes. The range of indigoid dyes was considerably extended at the beginning of the 20th century. Subsequently some of them were replaced by other classes of dyes; 15-20 indigoid dyes are still used. The manufacture of indigoid dyes is a complex, multistage process. The starting compounds are various derivatives of aniline, naphthalene, and other substances.

REFERENCES

Kogan, I. M. Khimiia krasitelei. Moscow, 1956.
Venkataraman K. Khimiia sinteticheskikh krasitelei, vol. 2. Leningrad, 1957. (Translated from English.)

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No references found			The analysis of indigoid dyes by mass spectrometry. High prestige Royal Purple dyed textiles from the Bronze Age royal ... by James, Matthew A.; Reifarth, Nicole; Mukherjee, Anna J.; Crump, Matthew P.; Gates, Paul J.; Sandor, / Antiquity The chemical composition of the indigoid dyes derived from the hypobranchial glandular secretions of Murex mollusks. Biological and chemical properties of the secretion from the ... by Alvarez, Jesus I. Murillo / Journal of Shellfish Research			Indies Social Democratic Association ISDV Indies, Laws of the Indifference indifferent indifferent equilibrium indifferent stability Indiga Indiga Bay Indigenismo indigenous indigenous coal indigenous limonite indigestible indigestion Indigirka Indigo indigo blue indigo bunting Indigo Carmine indigo copper indigo plant indigo red indigo snake Indigofera indigoid dye Indigoid Dyes indigolite Indigosols Indiitsy Indio Indio Hills Palms Indira Gandhi indirect address indirect addressing indirect cell indirect control indirect Coombs test indirect cost indirect cycle indirect developing test indirect drain pipe indirect effect Indirect Elections indirect expense indirect extrusion Indirect Fertilizers indirect fire indirect footlight indirect heater indirect heating indirect hernia			Indigo purple Indigo red Indigo red indigo snake indigo snake indigo snakes indigo snakes indigo squill Indigo white Indigo yellow Indigobird indigoes indigoes indigoes Indigofera Indigofera Indigofera Indigofera anil Indigofera hochstetteri Indigofera hochstetteri Indigofera hochstetteri Indigofera linnaei (Indigofera dominii, Indigofera enneaphylla) Indigofera linnaei (Indigofera dominii, Indigofera enneaphylla) Indigofera linnaei (Indigofera dominii, Indigofera enneaphylla) Indigofera spp Indigofera suffruticosa Indigofera tinctoria Indigogen indigoid indigoid dye Indigoid Dyes indigolite indigolite Indigometer Indigometry indigos indigos indigos Indigosols Indigotic indigotin indigotin indigotindisulfonate sodium Indigrubin Indihumin Indiitsy Indilatory Indiligence Indiligence Indiligent Indilinga: African Journal of Indigenous Knowledge Systems Indiminishable Indin indinavir indinavir indinavir indinavir Indinavir sulfate Indinavir sulfate Indinfer Indio

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