Category:Sappanwood: Ukiyo-e colorant
Sappanwood 蘇芳 (suō): A red dye extracted from several tropical trees, such as Paubrasilia echinata, commonly known as brazilwood from Brazil and Biancaea sappan, commonly known as sappanwood from Southeast Asia. Its principal colorant is brasilin, a hydroxyanthraquinone, that gives a deep red to brownish color when it is oxidized to form brasilein.
Sappanwood has been detected but the use of it appears to have been infrequent. Due to its sensitivity to pH, sappanwood can be manipulated to produce a range of colors as pink, red, or oranges. It is unknown if printers adjusted the pH to create a range of colors. Evidence of pH manipulation is difficult to extrapolate from the prints themselves since many of the examples have discolored to a dull pinkish brown due to fading and/or ageing.
For additional information see: Sappanwood, Biancaea sappan (Kew)
Examples of Sappanwood in Ukiyo-e Prints
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Analysis
Excitation Emission Matrix (EEM) spectroscopy can easily identify the organic reds: safflower, madder, and sappanwood. Sappanwood only fluoresces slightly under UVA radiation and produces a unique EEM pattern.
3D EEM plots for Red references 
Overlay of EEM curves for Red references 
Overlay of FORS spectra for Red references 
Visible light and UVA for Red references
Images of Sappanwood
Sappanwood (Biancaea sappan)
Chips of Sappanwood
Sappanwood
List of Prints
Below is a list of prints where sappanwood was detected.
Pages in category "Sappanwood: Ukiyo-e colorant"
The following 51 pages are in this category, out of 51 total.
B
E
- Eisen, Geisha at Night under Plum Blossoms, 11.26691-2
- Eisen, Minazuru-hime as Ono no Komachi and Benkei as Kisen Hôshi, from the series Characters from the Life of Ushiwaka as the Six Poetic Immortals, 11.25669
- Eisen, The Song Evening Mist at Asama Peak, on Scrap-paper Fabric with an Itchû-bushi Libretto, from the series A Modern Pine Needle Collection, 11.17878
H
- Harunobu, Courtesan Watching Two Kamuro Make a Snow Dog, 21.4463
- Harunobu, Parody of Saigyô Hôshi: Courtesan Looking at a Screen Painting of Mount Fuji, 11.19431
- Harunobu, The Sake Cup, sheet 4 of the series Marriage in Brocade Prints, the Carriage of the Virtuous Woman, known as the Marriage series, 11.19475
- Harunobu, The Tenth Month, from an untitled series of Twelve Months, 11.20124
- Harunobu, Young Woman Riding a Turtle (Parody of the Story of Urashima Tarô), 21.4594
- Harunobu, Young Woman Tuning a Shamisen, 06.479
- Hokkei, Goat Standing by a Plum Tree, 21.9277
- Hokkei, Ômori, from the series Souvenirs of Enoshima, a Set of Sixteen, 11.19845
- Hokusai, Act IX, from the series The Storehouse of Loyal Retainers, a Primer, 11.17643
- Hokusai, Act VI, from the series The Storehouse of Loyal Retainers, a Primer, 11.17586
- Hokusai, Act X, from the series The Storehouse of Loyal Retainers, a Primer, 11.17583
- Hokusai, Agemaki, Sukeroku, and the Sake Vendor at New Year, 53.2674
- Hokusai, An no Heibei with a Courtesan, from an untitled series of the Five Manly Men, 11.16854
- Hokusai, Box and Tray of Paper, with Gift Decorations, 11.16766
- Hokusai, Bun'ya no Yasuhide, from an untitled series of the Six Poetic Immortals formed by the characters for their names, 21.10217
- Hokusai, Courtesan and Kamuro with Hagoita, 11.20410
- Hokusai, Fish, Flowers, and Telescope, 11.20408
- Hokusai, Flower Ball and Bamboo Blind, 21.7872
- Hokusai, Hotei Ichiemon with a Courtesan, from an untitled series of the Five Manly Men, 11.16870
- Hokusai, Kaminari Shôkurô with a Courtesan, from an untitled series of the Five Manly Men, 11.19684
- Hokusai, Komagata-dô Temple (R) and Onmaya Embankment (L), from the series A Set of Horses, 21.10240-1
- Hokusai, New Year in the Yoshiwara, 21.9223
- Hokusai, Newly Published Perspective Picture: One Hundred Ghost Stories in a Haunted House, 46.1417
- Hokusai, Procession of a Daimyô Passing Shinagawa on the Way to Kyoto, from the series Newly Published Perspective Pictures, 21.10203
- Hokusai, Stone, from the series Three Pictures for a Children's Hand Game, 11.20413
- Hokusai, Susaki, from the series Three Shrines of the Goddess Benten, 11.20451
- Hokusai, Tea Ceremony, from the series Thirty-six Assorted Arts, 53.2718
- Hokusai, The Plum-blossom Shell, from the series The Poetry-Shell Matching Game of the Genroku Era, 21.9225
- Hokusai, Toys: Bird Whistle, Rattle, Boy Doll with Hobbyhorse, 11.20411
- Hokusai, Woman Cleaning Fish as Another Woman Reads a Book, 53.2717
- Hokusai, Woman Looking at Kite with Picture of Bell (Parody of Musume Dôjô-ji), from the series A Collection of Dances, 11.16824
- Hokusai, Woman, Child, and Man with Kite, from the series A Collection of Dances, 11.16764
- Hokusai, Women with Theatrical Costumes, from the series A Collection of Dances, 11.19683
- Hokusai, Ôkuninushi no Mikoto, the White Hare of Inaba, and the Crocodiles, 21.9245
K
- Komatsuken, Courtesan Parading with Two Kamuro, 11.19711
- Komatsuken, Young Man as the Bodhisattva Monju, 11.30137
- Komatsuken, Young Woman as the Bodhisattva Fugen, 11.30136
- Kunisada, Actors Iwai Kumesaburô II as Agemaki (R), Ichikawa Danjûrô VII as Sukeroku (C), and Onoe Kikugorô III as Shinbei (L), 21.7532-4
- Kuniyoshi, Hosokute: Horikoshi Dairyô, from the series Sixty-nine Stations of the Kisokaidô Road, 11.28766
S
- Shigemasa, Perspective Picture of the Sleeping Dragon Plum in the Plum Garden at Kameido, 11.14977
- Shigenobu I, Puppy Playing with a Ball, 21.9257
- Shinsai, Chapters 16–18, from the series The Tale of Genji, 11.21066
- Shinsai, Chapters 22–24, from the series The Tale of Genji, 11.20034
- Shinsai, Chapters 25–27, from the series The Tale of Genji, 21.9264