Difference between revisions of "Category:Indigo/Orpiment: Ukiyo-e colorant"

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== Analysis ==
 
== Analysis ==
Excitation Emission Matrix (EEM) spectroscopy can easily identify turmeric due to its high fluorescence and clear, consistent pattern. Another yellow colorant thought to have been traditionally used, [[Amur cork tree|Japanese yellow wood]] or kihada also fluoresces very brightly but they give very distinctive EEM patterns, making it easy to differentiate between the two. Yellow wood has not been detected so far.
+
Fiber optic reflectance spectroscopy (FORS) and (XRF) is used to identify indigo+orpiment.
 
<gallery mode="packed" heights="200px" style="text-align: left">
 
<gallery mode="packed" heights="200px" style="text-align: left">
 
Turmeric EEM ref.jpg|<center>3D EEM plot for Turmeric</center>
 
Turmeric EEM ref.jpg|<center>3D EEM plot for Turmeric</center>

Revision as of 23:59, 31 May 2020

Kamakura Village by Katsushika Hokusai

Indigo + Orpiment: Green is achieved by mixing or overprinting a blue and a yellow colorant. The most common combination found is indigo and orpiment. It appears that printers were able to create a wide range of greens with these two colorants. It also appears that printers also settled on indigo+orpiment as the go to green.


For more information see: Indigo, Orpiment

Examples of Indigo+Orpiment 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

Fiber optic reflectance spectroscopy (FORS) and (XRF) is used to identify indigo+orpiment.

List of Prints

List of prints where indigo was detected

Pages in category "Indigo/Orpiment: Ukiyo-e colorant"

The following 58 pages are in this category, out of 58 total.

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