Suō (Brazilwood) - left (292 L)
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| Museum number | 292 |
|---|---|
| Uemura number / title | ; "Haze-some 25" |
| Folder location | 4th shelf |
| Sample location | left (292 L) |
| Fiber type | silk |
| Color | red |
| Dyestuff (Japanese common name) | 蘇芳 : Suō |
| Dye (English common name) | Brazilwood |
| Dyestuff (botanical name) | Caesalpinia sappan L. |
| Plant part | bark /dried (?) |
| Dyestuff extraction | boiled in water |
| Auxiliary agent in dye bath | - |
| Mordant | alum |
| Other auxiliary agent | - |
| Uemura's notes | During the early modern period in Japan, alum was mostly used as mordant for dyeing with brazilwood. The resultant color has a better light fastness and more red than those mordanted with ash water. Increasing the concentration of mordant would result in reducing red tone from the dyed color. |
| Uemura's date | Kyoto |