Soshijyu (Acacia confusa) - left (366 L)

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Uemura 10-08-2009 366.jpg

Museum number 366
Uemura number / title ; "Haze-some 25"
Folder location 5th shelf
Sample location left (366 L)
Fiber type silk
Color ochre
Dyestuff (Japanese common name) 相思樹 : Soshijyu
Dyestuff (botanical name) Acacia confusa Merr.
Plant part bark / air dried
Dyestuff extraction boiled in water
Auxiliary agent in dye bath -
Mordant iron
Other auxiliary agent -
Uemura's notes 5g of air dried bark of the plant were boiled in 100cc of water, from which 25cc was used for the dyeing. The amount of the contained bark in the dye bath was 2.5 times as much as the weight of the silk used (0.5g). From the right sample, the dye compound were re-extracted from the fabric in a hot water, and the extract was dried. The dried extract weighed 25% of the fabric.
Uemura's date Kyoto