Few previously unknown natural coloring sources brought into Europe at this time proved to have widespread commercial success; quercitron is the only example that comes readily to mind. From Wordnik.com. [The Creation of Color in Eighteenth-Century Europe] Reference
With regard to Mr. Watson Smith's observation as to fractional dyeing, he (Mr. Siebold) did not regard this method as a suitable trial for ascertaining the strength of an extract, but he admitted it was occasionally very valuable for detecting an admixture of extracts of other dyewoods, such as quercitron bark extract in logwood extract. From Wordnik.com. [Scientific American Supplement, No. 711, August 17, 1889] Reference
America, are used by dyers under the name of quercitron. From Wordnik.com. [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.] Reference
In the case of the natural dye-stuffs -- logwood, fustic, Persian berries, Brazil wood, camwood, cochineal, quercitron, cutch, etc. -- which belong to this group of. From Wordnik.com. [The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student] Reference
About the time of the Revolution the town became a well-known station for the export of quercitron bark, and all the while the clacking mills were busy along the uneasy rapids of the Brandywine. From Wordnik.com. [Lippincott's Magazine of Popular Literature and Science Volume 11, No. 25, April, 1873] Reference
Then to same bath add 10 to 12 parts quercitron and continue boiling for 15 minutes, then add 1 part of chalk, this addition is repeated at intervals of 6 to 8 minutes till a fine green is brought out. From Wordnik.com. [Vegetable Dyes Being a Book of Recipes and Other Information Useful to the Dyer] Reference
But with larger proportions of logwood the color obtained was a fine bluish-black, and with the addition of a small proportion of fustic or quercitron bark to the logwood a jet black was readily produced. From Wordnik.com. [Scientific American Supplement, No. 711, August 17, 1889] Reference
Bancroft's persuasive abilities were considerable: His 1775 patent for the sale of quercitron in Britain was renewed when he argued that war hindered his ability to exploit its rights. 43 Once the patent was extended, Bancroft turned to the Council of Commerce in Paris for a similar privilege in France; he controlled access to this improved coloring material and its coloring technique in both countries until his death. From Wordnik.com. [The Creation of Color in Eighteenth-Century Europe] Reference
It is unaffected -- weld, Persian berries or quercitron. From Wordnik.com. [Forty Centuries of Ink] Reference
Some find it advantageous to mix a certain proportion of decoftion of weld with the quercitron bath, which fhould be expofed to only a gentle heat. From Wordnik.com. [Elements of the Art of Dyeing] Reference
According to Dr. Bancroft, the quercitron bark may be advantageoufly fubftituted for weld in the printing of linens, but it muft be only fimply infufed in warm water, and only one part employed, inftead of ten of weld. From Wordnik.com. [Elements of the Art of Dyeing] Reference
So, when the Lyonnais merchants Daubert and Maille developed their own technique to dye silk, they, and the French government, described the product as a new black, meaning one better than those achieved through other then-standard processes. 16 In French discussions of an act of the British Parliament granting Edward Bancroft exclusive rights to import the dyestuff quercitron, it was noted that, while the palette of yellows that quercitron produced might be familiar, incorporating this substance created a new industry, because quercitron was a different and presumed better material. 17 reference. From Wordnik.com. [The Creation of Color in Eighteenth-Century Europe] Reference
Bluestone, 2-1/2 lb. alum, 10 lb. quercitron extract, 2 lb. indigo carmine 4 lb. turmeric, 1/4 lb. From Wordnik.com. [The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student] Reference
Black oak; quercitron oak. From Wordnik.com. [Resources of the Southern Fields and Forests, Medical, Economical, and Agricultural. Being also a Medical Botany of the Confederate States; with Practical Information on the Useful Properties of the Trees, Plants, and Shrubs] Reference
quercitron extract. From Wordnik.com. [The Dyeing of Cotton Fabrics A Practical Handbook for the Dyer and Student] Reference
I alphabet these, too: alkanet-root, annatto, barwood, blackberry, blue-vitriol, brazil-wood, burnt sugar, cochineal, elderberry, garancine (an extract of madder), indigo, Nicaragua-wood, orchil, pokeberry, potash, quercitron, red beet, red cabbage, red carrots, saffron, sanders-wood, turmeric, whortleberry. From Wordnik.com. [The Humbugs of the World An Account of Humbugs, Delusions, Impositions, Quackeries, Deceits and Deceivers Generally, in All Ages] Reference
Other dyestuffs, like camwood, brazilwood, and their allies, also young fustic, give always fugitive colors whatever mordant be employed; others again, e.g., weld, old fustic, quercitron bark, flavin, and Persian berries, give fast colors with some mordants and fugitive colors with others; compare, for example, the fast olives of the chromium, copper, and iron mordants with the fugitive yellows given by aluminum and tin. From Wordnik.com. [Scientific American Supplement, No. 810, July 11, 1891] Reference
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