Difference between revisions of "Category:Dayflower/Turmeric: Ukiyo-e colorant"

Revision as of 00:31, 27 July 2020

Dayflower + Turmeric: Green is achieved by overprinting or mixing a blue and a yellow colorant. Dayflower printed over turmeric was typically used on early prints of two to three colors. On prints the appearance of green produced by overprinting turmeric with dayflower can change upon exposure to moisture or fading. The highly water soluble dayflower can move towards the back of the paper support to reveal the yellow turmeric. Turmeric is also highly susceptible to fading and in some cases the green produced by the combination of these two colors can appear tan. Later, the dayflower+turmeric mixture was largely supplanted by indigo+orpiment which becomes the dominate formulation for green.

For more information see: Dayflower, Turmeric

Examples of Dayflower+Turmeric in Ukiyo-e Prints


Beauties of the Yoshiwara by Suzuki Harunobu


Beauties of the Yoshiwara by Suzuki Harunobu


Beauties of the Yoshiwara by Suzuki Harunobu


Beauties of the Yoshiwara by Suzuki Harunobu


Beauties of the Yoshiwara by Suzuki Harunobu

Analysis

Fiber optic reflectance spectroscopy (FORS) is used to identify dayflower and Excitation Emission Matrix (EEM) spectroscopy turmeric.

FORS spectrum of Dayflower reference
3D EEM plot for Turmeric

List of Prints

Below is a list of prints where dayflower + turmeric was detected.

Pages in category "Dayflower/Turmeric: Ukiyo-e colorant"

The following 2 pages are in this category, out of 2 total.

K

Kiyomitsu I, Actors Ôtani Hiroji III as Okabe no Rokuyata and Nakamura Sukegorô II as Inomata no Koheiroku, 46.1409

S

Shigenobu I, Puppy Playing with a Ball, 21.9257

@@ Line 2: / Line 2: @@
 [[File:SC155045.jpg|right|250px|link=https://collections.mfa.org/objects/207552/kamakura-village-from-an-untitled-series-of-westernstyle-l?ctx=1be86594-d25a-458d-827f-8e5dc3048977&idx=0|Kamakura Village by Katsushika Hokusai]]
-<font size="3">'''[[:Category:Dayflower: Ukiyo-e colorant|Dayflower]] + [[:Category:Turmeric: Ukiyo-e colorant|Turmeric]]'''</font>: Dayflower and turmeric were used to create a green by mixing or overprinting the two colorants. This combination was commonly seen in early prints of two to three colors. The dayflower+turmeric mixture was later supplanted by indigo+orpiment which is the most commonly seen mixture to create a green.
+<font size="3">'''[[:Category:Dayflower: Ukiyo-e colorant|Dayflower]] + [[:Category:Turmeric: Ukiyo-e colorant|Turmeric]]'''</font>: Green is achieved by overprinting or mixing a blue and a yellow colorant. Dayflower printed over turmeric was typically used on early prints of two to three colors. On prints the appearance of green produced by overprinting turmeric with dayflower can change upon exposure to moisture or fading. The highly water soluble dayflower can move towards the back of the paper support to reveal the yellow turmeric. Turmeric is also highly susceptible to fading and in some cases the green produced by the combination of these two colors can appear tan. Later, the dayflower+turmeric mixture was largely supplanted by [[:Category:Indigo/Orpiment: Ukiyo-e colorant|indigo+orpiment]] which becomes the dominate formulation for green.
 '''For more information see:''' [[:Category:Dayflower: Ukiyo-e colorant|Dayflower]], [[:Category:Turmeric: Ukiyo-e colorant|Turmeric]]
 <br>
 == Examples of Dayflower+Turmeric in Ukiyo-e Prints ==
@@ Line 42: / Line 43: @@
 == 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) is used to identify [[:Category:Dayflower: Ukiyo-e colorant|dayflower]] and Excitation Emission Matrix (EEM) spectroscopy [[:Category:Turmeric: Ukiyo-e colorant|turmeric]].
 <gallery mode="packed" heights="200px" style="text-align: left">
+Dayflower FORS.JPG|<center>FORS spectrum of Dayflower reference</center>
 Turmeric EEM ref.jpg|<center>3D EEM plot for Turmeric</center>
-Yellow EEM plots.jpg|<center>3D EEM plots for Yellow references</center>
 </gallery>
 ==List of Prints ==
-List of prints where indigo was detected
+Below is a list of prints where dayflower + turmeric was detected.