An examination of the working properties of agarose gels for textile conservation

Abstract

Recent developments in poultice treatments have led to the introduction of new materials into textile conservation. Agar and agarose, represent two such products. First used on paintings, these materials have rapidly transitioned into more porous media, despite limited research underpinning how these gels respond on different materials.

This research aims to determine ideal working conditions for agarose on three different fibres. A literature review examines available research and case studies, identifying trends and limits in current practice. Discussion of poultices and gel cleaning systems, in depth examination of the physical properties of agar and agarose, and purchasing criteria inform the experimental phase of the project.

The experimental phase examines agarose at three concentrations and two depths to determine how these gels should be utilised on textile substrates.
Results show that success is dependent on type of fibre, wettability, and gel concentration. The current suggested range should be altered to improve the ability of the gel to draw out and prevent the movement of soiling.

The research develops the use of agarose in textile conservation, providing a
visual and empirical source for understanding how these gels work and what
factors to take into account for purchasing products and implementing treatment.