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Since 2002, the MFA’s Asian Conservation Studio and Scientific Research Laboratory has been conducting research into the colorants used in Japanese woodblock prints, or ukiyo-e prints from the Edo period (1603–1868). During this time, over 800 prints were surveyed using non-invasive techniques that do not require sampling from the prints: X-ray Fluorescence (XRF), Excitation Emission Matrix (EEM), and Fiber Optic Reflectance (FORS) spectroscopies. 
This Ukiyo-e Print Colorant Database is an effort to begin collating the analytical results of colorants into one location that is accessible to all researchers. It currently focuses on prints from the MFA’s collection from the early 1700s to the mid-1800s. It does not yet cover the whole breadth of colorants used, such as the aniline-based colorants, but we plan to continue to expand the database. Thus far, data for over 100 prints have been uploaded. The uploading of data is ongoing. More on the data.
===Colorants===
A list of colorants detected so far in this research. Click to see examples of the printed colors, spectra, and a list of analyzed prints. 
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Blue
* Dayflower
*Indigo
*Prussian blue
Red
*Safflower
*Madder
*Sappanwood
*Red lead
*Vermilion
*Others	
Yellow
*Turmeric
*Orpiment
*Flavonoids
*Gamboge
*Iron oxide yellow
Brown
*Iron oxide red
Purple
*Dayflower + Safflower
*Others	
Green
*Dayflower + Turmeric
*Indigo + Orpiment
*Prussian blue + Orpiment
*Others
Black
*Carbon black
White
*Calcium carbonate
*Lead white	
Mica
*Mica
Metallic
*Brass
*Tin
=== By Artist ===
Prints analyzed listed by artist.
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C
*Chōbunsai Eishi
H
*Hanekawa Chinchō
I
*Ippitsusai Bunchō
*Ishikawa Toyonobu
*Isoda Koryusai
K
*Katsukawa Shunkō
*Katsukawa Shunshō	
*Katsushika Taito II
*Keisai Eisen
*Kikukawa Eizan
*Kitagawa Utamaro I
*Kitao Shigemasa
*Komatsuken
*Kubo Shunman
O
*Okumura Masanobu
*Okumura Toshinobu
R
*Ryūryūkyo Shinsai	
S
*Suzuki Harunobu
T
*Torii Kiyohiro
*Torii Kiyomasu I
*Torii Kiyomasu II
*Torii Kiyomitsu I
*Torii Kiyonaga
*Torii Kiyonobu I
*Torii Kiyotada I
*Tōshūsai Sharaku
*Totoya Hokkei	
U
*Utagawa Hiroshige I
*Utagawa Hiroshige II
*Utagawa Kunisada (Toyokuni III)
*Utagawa Kuniyoshi
*Utagawa Toyoharu
*Utagawa Toyokuni I
Y
*Yanagawa Shigenobu I
=== Bibliography===
A list of publications and resources on colorants found in Japanese woodblock prints.
=== About the Collection ===
The MFA has over 50,000 Japanese prints and approximately 3,000 titles of illustrated books covering the Edo period (1603–1868) to the present. The Japanese woodblock print collection spans the Edo period from its birth to color printing to its height as a commercial product and to its end in the Meiji period (1868–1912). This collection represents not only the breadth of artists working at the time but also multiple impressions and editions, making it a comprehensive resource for scholarship, research, and teaching. Collections from prominent Bostonians such as William Sturgis Bigelow, Denman Ross, and the Spaulding brothers at the turn of the century form the basis of the collection. Furthermore, the William S. and John T. Spaulding Collection of Japanese woodblock prints is a study collection comprised of over 6,000 prints that generally display remarkable preservation of the colorants, making it a valuable benchmark for the study of color and palette.
==== Acknowledgement ====
The colorant research comes out of a long collaboration between the Asian Conservation Studio and Scientific Research Laboratory that was led by Joan Wright and Michele Derrick. We would like to thank the many volunteers who contributed to this research. We are also grateful to Richard and JoAnn Pinkowitz for donating to this database project which allowed us to bring the Ukiyo-e Print Colorant Database online.
Category: Reference Collections