In this research project we propose a new material usable for the preparation of retouching colours as an alternative to the more common watercolours normally used for the pictorial restoration of the artworks. Compared to traditional Arabic gum based watercolours, the self-produced colours here presented are made with a new synthetic binder: Aquazol® 500. This polymer has good physical-chemical properties and a wide spectrum of solubility in various organic polar solvents, which also makes it suitable for the retouching of water sensitive artworks. These new retouching colours with Aquazol® 500, prepared with two different recipes, were investigated with different scientific analyses both before and after artificial aging in a Solar Box, in order to evaluate their stability over time.The results obtained from the study of the self-produced colours were then compared with those obtained from the same scientific investigations carried out on the only commercial watercolours based on Aquazol® currently on the market: QoR® by Golden Artist Colors (USA). The results obtained from the study demonstrate that, thanks to its extreme stability, Aquazol® 500 can be considered a valid binder for retouching colours. In fact, the polymer does not degrade and does not show crosslinking phenomena. The self-produced colours are confirmed to be much more stable over time and therefore much more suitable than the QoR® watercolours for pictorial retouching of artistic artefacts.

The use of Aquazol® 500 as a binder for retouching colours: analytical investigations and experiments / Ubaldi, V.; Bestetti, R.; Franchi, R.; Grifoni, E.; Lottici, P. P.; Modugno, F.; Wolbers, R.; De Luca, D.. - ELETTRONICO. - (2018), pp. 66-79. (Intervento presentato al convegno 4TH INTERNATIONAL MEETING ON RETOUCHING OF CULTURAL HERITAGE, RECH 4 tenutosi a Split, Croatia nel 20 -21 OCTOBER 2017).

The use of Aquazol® 500 as a binder for retouching colours: analytical investigations and experiments

P. P. Lottici
Investigation
;
2018-01-01

Abstract

In this research project we propose a new material usable for the preparation of retouching colours as an alternative to the more common watercolours normally used for the pictorial restoration of the artworks. Compared to traditional Arabic gum based watercolours, the self-produced colours here presented are made with a new synthetic binder: Aquazol® 500. This polymer has good physical-chemical properties and a wide spectrum of solubility in various organic polar solvents, which also makes it suitable for the retouching of water sensitive artworks. These new retouching colours with Aquazol® 500, prepared with two different recipes, were investigated with different scientific analyses both before and after artificial aging in a Solar Box, in order to evaluate their stability over time.The results obtained from the study of the self-produced colours were then compared with those obtained from the same scientific investigations carried out on the only commercial watercolours based on Aquazol® currently on the market: QoR® by Golden Artist Colors (USA). The results obtained from the study demonstrate that, thanks to its extreme stability, Aquazol® 500 can be considered a valid binder for retouching colours. In fact, the polymer does not degrade and does not show crosslinking phenomena. The self-produced colours are confirmed to be much more stable over time and therefore much more suitable than the QoR® watercolours for pictorial retouching of artistic artefacts.
2018
978-953-6617-42-5
The use of Aquazol® 500 as a binder for retouching colours: analytical investigations and experiments / Ubaldi, V.; Bestetti, R.; Franchi, R.; Grifoni, E.; Lottici, P. P.; Modugno, F.; Wolbers, R.; De Luca, D.. - ELETTRONICO. - (2018), pp. 66-79. (Intervento presentato al convegno 4TH INTERNATIONAL MEETING ON RETOUCHING OF CULTURAL HERITAGE, RECH 4 tenutosi a Split, Croatia nel 20 -21 OCTOBER 2017).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11381/2848063
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