Ouren (Goldthread) - left (296 L)

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Uemura 09-10-2009 296.jpg

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Uemura 09-10-2009 296 UV.jpg

Museum number 296
Uemura number / title  ; "Haze-some 25"
Folder location 4th shelf
Sample location left (296 L)
Fiber type silk
Color yellow
Dyestuff (Japanese common name) 黄蓮 : Ouren
Dye (English common name) Goldthread
Dyestuff (botanical name) Coptis japonica (Thunb.) Makino var. anemonifolia (Siebold et Zucc.) H.Ohba
Plant part root / dried (?)
Dyestuff extraction boiled in water
Auxiliary agent in dye bath -
Mordant aluminum oxide
Other auxiliary agent -
Uemura's notes The dyeing technique was recorded in the Buyakuryo (), the 8th century AD, Japan. In the list compiled by the Ministry of Forestry, it was recorded that the root and stem of this plant were used as a yellow dye in Thoku, Chugoku and Shikoku regions in Japan.
Uemura's date Kyoto