Difference between revisions of "Bark dyes"
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== Description == | == Description == | ||
| − | Many natural dyes have been extracted from the barks of common trees. The most intense color is the black dye, [http://cameo.mfa.org/materials/fullrecord.asp?name=quercitron quercitron], obtained from oak bark. Other barks produce tan to dark brown colors on [http://cameo.mfa.org/materials/fullrecord.asp?name=wool wool]. Generally, the inner bark is collected in the fall or winter, then dried and stored for later use. Many of the barks also are high in tannins. The presence of excess tannin will darken the fabric with age. Some processes use [http://cameo.mfa.org/materials/fullrecord.asp?name=potassium | + | Many natural dyes have been extracted from the barks of common trees. The most intense color is the black dye, [http://cameo.mfa.org/materials/fullrecord.asp?name=quercitron quercitron], obtained from oak bark. Other barks produce tan to dark brown colors on [http://cameo.mfa.org/materials/fullrecord.asp?name=wool wool]. Generally, the inner bark is collected in the fall or winter, then dried and stored for later use. Many of the barks also are high in tannins. The presence of excess tannin will darken the fabric with age. Some processes use [http://cameo.mfa.org/materials/fullrecord.asp?name=potassium%20dichromate potassium dichromate], [http://cameo.mfa.org/materials/fullrecord.asp?name=ferrous%20sulfate ferrous sulfate], or [http://cameo.mfa.org/materials/fullrecord.asp?name=copper%20sulfate copper sulfate] in the final rinse to remove the excess tannins. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| − | colorantes | + | colorantes extraídos de la corteza (Esp.); colorants extraits d'écorces (Fr.); coloranti da cortecce di albero (It.) |
== Authority == | == Authority == | ||
| − | * | + | * R.J. Adrosko, ''Natural Dyes in the United States'', Smithsonian Institution Press, Washington, DC, 1968 |
| − | * | + | * John and Margaret Cannon, ''Dye Plants and Dyeing'', Herbert Press, London, 1994 |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 06:49, 24 July 2013
Description
Many natural dyes have been extracted from the barks of common trees. The most intense color is the black dye, quercitron, obtained from oak bark. Other barks produce tan to dark brown colors on wool. Generally, the inner bark is collected in the fall or winter, then dried and stored for later use. Many of the barks also are high in tannins. The presence of excess tannin will darken the fabric with age. Some processes use potassium dichromate, ferrous sulfate, or copper sulfate in the final rinse to remove the excess tannins.
Synonyms and Related Terms
colorantes extraídos de la corteza (Esp.); colorants extraits d'écorces (Fr.); coloranti da cortecce di albero (It.)
Authority
- R.J. Adrosko, Natural Dyes in the United States, Smithsonian Institution Press, Washington, DC, 1968
- John and Margaret Cannon, Dye Plants and Dyeing, Herbert Press, London, 1994