orchil

The coloring parts of resinous (resin-like) dyestuffs are extracted from substances that are insoluble in water, for example annatto, indigo, carthamus, and orchil.

The Creation of Color in Eighteenth-Century Europe 2006

In 1758, Cuthbert Gordon received a British patent for a substance he called cudbear, the result of a new processing method he developed for the traditional dyestuff orchil.

The Creation of Color in Eighteenth-Century Europe 2006

He supposes, in a word, that for every colored substance existing in orchil and litmus, there is a corresponding white one, producible by the action of sulphuretted hydrogen, &c.; and, in proof of this theory, he mentions having obtained from Azolitmine and Betaorceine colorless bodies, to which he gave the respective names of Leuco-litmine and Leuco-orceine.

The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. P. L. Simmonds

A woaded color, for example, is only fast in respect of the vat indigo which it contains, and yet how frequent is the custom to unite with the indigo such dyes as barwood, orchil, and indigo-carmine, the fugitive character of which I have pointed out.

Scientific American Supplement, No. 810, July 11, 1891 Various

Pliny, down to the present day, sketching briefly the ancient end modern history of orchil, cudbear, and litmus, and specifying the native use of lichen-dyes in different, countries of Europe, Asia, and America.

The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. P. L. Simmonds

Their utility in the arts, and especially in dyeing -- including the collection of a series of the commercial dye lichens, _i. e._, those used by the manufacturers of London, &c., in the making of orchil, cudbear, litmus, and other lichen dyes.

The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. P. L. Simmonds

Turmeric, orchil, catechu, and indigo carmine are all extremely fugitive.

Scientific American Supplement, No. 810, July 11, 1891 Various

On some of the rugged masses of masonry grew large hoary tufts of the strange roccella or orchil-weed, which yields the famous purple dye -- with which, in all likelihood, the robes of the Cæsars were coloured -- and which gave wealth, rank, and name to one princely

Roman Mosaics Or, Studies in Rome and Its Neighbourhood Hugh Macmillan

He found that such fugitive colors as orchil, safflower, and indigo-carmine fade very rapidly in moist air, less rapidly in dry air, and that they experience little or no change in hydrogen or in a vacuum.

Scientific American Supplement, No. 810, July 11, 1891 Various

After a few remarks on the chemical constitution of orchil and litmus, as given by Kane, Gelis, Pereira, and others, he discussed the subject of decolorisation of weak infusions of orchil and litmus by exclusion of atmospheric air, and by various deoxidising agents, and the different theories as to the causation of this phenomenon.

The Commercial Products of the Vegetable Kingdom Considered in Their Various Uses to Man and in Their Relation to the Arts and Manufactures; Forming a Practical Treatise & Handbook of Reference for the Colonist, Manufacturer, Merchant, and Consumer, on the Cultivation, Preparation for Shipment, and Commercial Value, &c. of the Various Substances Obtained From Trees and Plants, Entering into the Husbandry of Tropical and Sub-tropical Regions, &c. P. L. Simmonds