Difference between revisions of "Category:Sappanwood: Ukiyo-e colorant"

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[[File:SC347460.jpg|right|250px|link=Harunobu, The Tenth Month, from an untitled series of Twelve Months, 11.20124|The Tenth Month by Suzuki Harunobu]]
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[[File:SC347460.jpg|right|400px|link=Harunobu, The Tenth Month, from an untitled series of Twelve Months, 11.20124|The Tenth Month by Suzuki Harunobu]]
  
<font size="3">'''[[Brazilwood dye|Sappanwood]]'''</font> 蘇芳(''suo''): A red dye extracted from any of several tropical trees of the senna genus, ''Caesalpinia'', such as ''C. brasiliensis'' (from Brazil), ''C. crista'' (from Pernambuco), ''C. echinata'' (peachwood from Nicaraugua), or ''C. sappan'' (sappanwood from East Indies and Asia). Its principal colorant is [[brasilin]], a hydroxyanthraquinone, that gives a deep red to brownish color when it is oxidized to form brasilein.
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<font size="3">'''[[Brazilwood dye|Sappanwood]]'''</font> 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  
 
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.
 
themselves since many of the examples have discolored to a dull pinkish brown due to fading and/or ageing.
  
'''For more information see:''' [[Brazilwood dye|Sappanwood]], [https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:481889-1 ''Biancaea sappan'' (Kew)]
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'''For additional information see:''' [[Brazilwood dye|Sappanwood]], [https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:481889-1 ''Biancaea sappan'' (Kew)]
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== Analysis ==
 
== Analysis ==
Excitation Emission Matrix (EEM) spectroscopy can easily identify the organic reds: [[:Category:Safflower: Ukiyo-e colorant|safflower]], [[:Category:Madder: Ukiyo-e colorant|madder]], and sappanwood. Sappanwood does not fluoresces under UVA radiation and produces a unique EEM pattern....  
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Excitation Emission Matrix (EEM) spectroscopy can easily identify the organic reds: [[:Category:Safflower: Ukiyo-e colorant|safflower]], [[:Category:Madder: Ukiyo-e colorant|madder]], and sappanwood. Sappanwood does not fluoresces under UVA radiation and produces a unique EEM pattern.  
  
  
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</gallery>
 
</gallery>
  
==Other Images of Sappanwood ==  
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==Images of Sappanwood ==  
 
<gallery>
 
<gallery>
Sappsnwood trees.JPG|Sappanwood (''Caesalpinia sappan'')
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Sappsnwood trees.JPG|Sappanwood (''Biancaea sappan'')
File:brazilwood raw.jpg|Cut pieces of brazilwood (''Caesalpinia brasiliensis'')
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File:Red bud_suo.jpg|Chips of Sappanwood
File:Red bud_suo.jpg|Chips of Red bud
 
 
File:12 Sappanwood.jpg|Sappanwood
 
File:12 Sappanwood.jpg|Sappanwood
File:06_Brazilwood comp.jpg|Dye mixtures from brazilwood juice
 
 
</gallery>
 
</gallery>
 
  
 
==List of Prints ==
 
==List of Prints ==
 
Below is a list of prints where sappanwood was detected.
 
Below is a list of prints where sappanwood was detected.

Latest revision as of 23:38, 17 April 2024

The Tenth Month by Suzuki Harunobu

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

Dyed indigo.jpg

Indigo FORS.JPG
Beauties of the Yoshiwara by Suzuki Harunobu

Dyed indigo.jpg

Indigo FORS.JPG
Beauties of the Yoshiwara by Suzuki Harunobu

Dyed indigo.jpg

Indigo FORS.JPG
Beauties of the Yoshiwara by Suzuki Harunobu

Dyed indigo.jpg

Indigo FORS.JPG
Beauties of the Yoshiwara by Suzuki Harunobu

Dyed indigo.jpg

Indigo FORS.JPG
Beauties of the Yoshiwara by Suzuki Harunobu


Analysis

Excitation Emission Matrix (EEM) spectroscopy can easily identify the organic reds: safflower, madder, and sappanwood. Sappanwood does not fluoresces under UVA radiation and produces a unique EEM pattern.


Images of Sappanwood

List of Prints

Below is a list of prints where sappanwood was detected.

Pages in category "Sappanwood: Ukiyo-e colorant"

The following 37 pages are in this category, out of 37 total.