000078298 001__ 78298 000078298 005__ 20200113145618.0 000078298 0247_ $$2doi$$a10.1016/j.microc.2018.02.015 000078298 0248_ $$2sideral$$a105284 000078298 037__ $$aART-2018-105284 000078298 041__ $$aeng 000078298 100__ $$0(orcid)0000-0002-4681-3934$$aPérez-Arantegui, J.$$uUniversidad de Zaragoza 000078298 245__ $$aColours and pigments in late ukiyo-e art works: A preliminary non-invasive study of Japanese woodblock prints to interpret hyperspectral images using in-situ point-by-point diffuse reflectance spectroscopy 000078298 260__ $$c2018 000078298 5060_ $$aAccess copy available to the general public$$fUnrestricted 000078298 5203_ $$aDyes and pigments have been used in traditional Japanese woodblock printings in the ukiyo-e style for several centuries. However, the possible introduction of new European pigments and the extraordinary quality of the works of the later period led to take a keen interest in the analytical study of these ukiyo-e prints manufactured at the end of the 19th century. The present research discusses the analytical results of the series Bijin juni kagetsu (“Beauties in the Twelve Months”) by Shuntei, dated in 1898–1899. Due to the characteristics of this type of artworks, diffuse reflectance spectroscopy (DRS) has been chosen as a portable, non-invasive analytical technique to identify pigments and colorants used in the woodblock prints. The analytical possibilities offered by the in-situ point-by-point DRS as a preliminary tool to better interpret hyperspectral imaging (HSI) data were highlighted. Reflectance spectra of more than 190 points sampled throughout the artwork were recorded between 360 and 740 nm, and characterised. Throughout an statistical classification of the spectral data using unsupervised pattern recognition methods, twenty-two different colour composition was confirmed. These groups of reflectance spectra were then identified according the presence of characteristic maxima, minima and inflection points in every spectrum. Some micro-samples extracted from the pigments still remained in a woodblock (used for a 20th century print) were analysed by FESEM-EDS to better interpret some reflectance spectra. Traditional Japanese pigments (like vermilion, red lead, and indigo) and synthetic materials introduced in the 18th and 19th centuries (Prussian blue, synthetic arsenic sulphides, eosin, and methyl violet or crystal violet) were identified in the Shuntei''s series colours, together with some mixtures of pigments to prepare blue, green, orange and purple. Based on these twenty-two reflectance patterns, the point-by-point spectra make easier the task of interpreting the very complex HSI data, and reduce the time of treatment and interpretation required by HSI. 000078298 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/HAR-2014-55851-P 000078298 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/ 000078298 590__ $$a3.206$$b2018 000078298 591__ $$aCHEMISTRY, ANALYTICAL$$b20 / 84 = 0.238$$c2018$$dQ1$$eT1 000078298 592__ $$a0.739$$b2018 000078298 593__ $$aSpectroscopy$$c2018$$dQ2 000078298 593__ $$aAnalytical Chemistry$$c2018$$dQ2 000078298 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion 000078298 700__ $$aRupérez, D. 000078298 700__ $$0(orcid)0000-0001-7336-7215$$aAlmazán, D.$$uUniversidad de Zaragoza 000078298 700__ $$aDíez-de-Pinos, N. 000078298 7102_ $$12009$$2750$$aUniversidad de Zaragoza$$bDpto. Química Analítica$$cÁrea Química Analítica 000078298 7102_ $$13007$$2465$$aUniversidad de Zaragoza$$bDpto. Historia del Arte$$cÁrea Historia del Arte 000078298 773__ $$g139 (2018), 94-109$$pMicrochem. j.$$tMICROCHEMICAL JOURNAL$$x0026-265X 000078298 8564_ $$s1342528$$uhttps://zaguan.unizar.es/record/78298/files/texto_completo.pdf$$yPostprint 000078298 8564_ $$s56095$$uhttps://zaguan.unizar.es/record/78298/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint 000078298 909CO $$ooai:zaguan.unizar.es:78298$$particulos$$pdriver 000078298 951__ $$a2020-01-13-14:54:31 000078298 980__ $$aARTICLE