Titel
A Pilot Study of the Effects of Tri-Ammonium Citrate Solutions Used for Surface Cleaning Paintings
Verantwoordelijkheids-vermelding
Aviva Burnstock and Klaas Jan van den Berg
Verantwoordelijke(n)
Illustraties
ill
Materiaal
artikel
Digitaal document
Samenvatting
Surface cleaning unvarnished paintings may have an aesthetic impact on the appearance of the painting,
and the process involves direct contact with the paint surface. The method chosen for surface cleaning –
and the evaluation of risks involved – makes it one of the most critical of all conservation interventions.
The choices for removal of surface dirt are influenced by the nature of the dirt or accretions to be removed,
by the material and surface characteristics of the painting and its response to the chosen system for removal
of the surface material. Choices for surface dirt removal from significantly aged cross linked paint bound in
drying oil media typically include dry methods employing erasers, saliva, water, water at slightly elevated
pH, addition of a low percentage of non-ionic surfactants and/or chelating agents.
The present study was limited to an assessment of the effects of surface cleaning unvarnished paint surfaces
using tri-ammonium citrate (TAC). The choice of this reagent is based on its current widespread use by
conservators for surface cleaning, since its introduction by Carlyle et al in 1990 (Carlyle 1990). This pilot
study aimed to explore the potential for a wider investigation of the effects of a range of surface cleaning
agents used to remove dirt from unvarnished paint surfaces, and to evaluate the risks associated with the
methods.
Annotatie
IN: Paintings Specialty Group postprints, 2004 [2005]/ comp. by Helen Mar Parkin, vol. 17.- Washington DC : American Institute for Conservation, 2005.- p. 56-64
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