Spectroscopic analysis of artists’ pigments and materials used in southern Swedish painted wall hangings from the eighteenth and nineteenth centuries

Nyström, Ingalill

doi:10.1179/2047058414y.0000000131

Cited by 5 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although weld was possibly identified in textiles from Xinjiang [4,5], in 17th-century Arraiolos carpets, Portugal [6] and in Southern Swedish painted wall hangings from the 18th-19th centuries [7], assessing its conservation condition and the causes of degradation in artworks is still in its early stages. To understand the degradation mechanisms that are in play in such complex matrices as found in our cultural her-itage, it is necessary to have reference materials prepared with as much historical accuracy as possible.…”

Section: Introductionmentioning

confidence: 99%

Yellow Lake Pigments from Weld in Art: Investigating the Winsor & Newton 19th Century Archive

et al. 2021

View full text Add to dashboard Cite

Weld (Reseda luteola) was one of the main sources of yellow dyes used for dyeing textiles and to prepare artists’ pigments in Europe until the 19th century. For the first time, this work explores the technology of preparing weld lake pigments in the 19th century by Winsor & Newton (W&N), a renowned supplier of artists’ materials. Five recipes were discovered in the W&N 19th century Archive Database and reconstructed in the laboratory. W&N was extracting weld in neutral and basic media, and preparing the insoluble lake by complexation with Al3+ in the form of alum (KAl(SO4)2•12H2O) or hydrated alumina (Al(OH)3). Five yellow lake pigments were successfully obtained and characterized by High-Performance Liquid Chromatography-Diode Array Detector (HPLC-DAD) and Fourier Transform Infrared Spectroscopy (FTIR). Their chromatographic profiles display as main yellows, luteolin 7-O-glucoside (Lut-7-O-glu) or both Lut-7-O-glu plus luteolin 3′,7-O-glucoside (Lut-3’,7-O-glu). In two of the processes, the presence of gypsum (CaSO4•2H2O) was unequivocally detected by FTIR, being formed as a by-product. This work offers the first identification of weld lake pigments’ characteristic infrared bands. The W&N Database proved again to be a unique source of information on 19th-century artists’ materials and their commercial preparation. The knowledge gain is essential to ensure effective conservation and authentication procedures.

show abstract

Section: Introductionmentioning

confidence: 99%

Yellow Lake Pigments from Weld in Art: Investigating the Winsor & Newton 19th Century Archive

et al. 2021

View full text Add to dashboard Cite

show abstract

“…[15,16] In the Heritage Science field, researchers found turmeric in barkcloth from the Pacific Islands, [7,17] in historical Indian and Persian textiles, [18] and there is evidence that artists used turmeric also for paintings and prints. [19,20] Instead, textiles dyed with saffron are rare, probably because it was expensive. [9] However, researchers found saffron in textile fragments from the Cave of Letters in Israel (c. 132-135 AD), in Turkish carpets, [9] and Ottoman textiles.…”

Section: Introductionmentioning

confidence: 99%

Noninvasive identification of turmeric and saffron dyes in proteinaceous textile fibres using Raman spectroscopy and multivariate analysis

Balbas

Lanterna

Cirrincione

et al. 2021

J Raman Spectroscopy

View full text Add to dashboard Cite

We used Raman spectroscopy combined with multivariate analysis to study noninvasively naturally and artificially aged samples of silk and wool fibres dyed with turmeric and saffron dyes, following historical recipes. The Raman spectra obtained from all the samples using the two excitation lasers (785 and 1064 nm) showed the characteristic peaks of each dye and fibre. The 1064‐nm macro FT‐Raman offered more information regarding the degradation of the fibre substrate, whereas the μ‐Raman at 785‐nm spectra proved more suitable in the identification of dye characteristic peaks. We also performed colorimetric measurements to evaluate the colour change upon artificial ageing and compared them with the information obtained with Raman spectroscopy. The results suggest saffron has a higher lightfastness than turmeric and that silk fibres suffer higher fading and more evident degradation than wool. Raman spectroscopy informs about the chemical composition of the colourants and fibres and their changes upon ageing without sample pretreatment. Finally, we analysed a historical wool sample coming from a 19th‐century Persian carpet, and we identified turmeric.

show abstract

From Frescoes to Paintings

Edwards

Vandenabeele

Colomban

2022

Raman Spectroscopy in Cultural Heritage Preservation

View full text Add to dashboard Cite

Spectroscopic analysis of artists’ pigments and materials used in southern Swedish painted wall hangings from the eighteenth and nineteenth centuries

Cited by 5 publications

References 14 publications

Yellow Lake Pigments from Weld in Art: Investigating the Winsor & Newton 19th Century Archive

Yellow Lake Pigments from Weld in Art: Investigating the Winsor & Newton 19th Century Archive

Noninvasive identification of turmeric and saffron dyes in proteinaceous textile fibres using Raman spectroscopy and multivariate analysis

From Frescoes to Paintings

Contact Info

Product

Resources

About