Daio (family Polygonaceae) - center (309 C)
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| Museum number | 309 |
|---|---|
| Uemura number / title | ; "Haze-some 25" |
| Folder location | 4th shelf |
| Sample location | center (309 C) |
| Fiber type | silk |
| Color | yellow ochre |
| Dyestuff (Japanese common name) | 大黄 : Daio |
| Plant part | root / dried (?) |
| Dyestuff extraction | boiled in water |
| Auxiliary agent in dye bath | - |
| Mordant | - |
| Other auxiliary agent | vinegar (separate bath) |
| Uemura's notes | The dyed fabric was subsequently soaked into vinegar, which made the color clearer. In the Tdaijikenmotsu-ch () (inventory of objects donated by the Emperor Shmu to the Tdaiji-temple in the city of Nara) from 8th century AD, Japan, it is recorded that approximately 550 kg of this plant was donated: " ". Ji () (Rehmannia glutinosa (Gaertn.) Libosch. ex Fiscg. et C.A.Mey. f. glutinosa) would not be suitable for dyeing. |
| Uemura's date | Kyoto |