An investigation into application methods of localised dye in textile conservation

Abstract

Localised dyeing is used by textile conservators to create visual infills for areas of loss with support fabrics. This dissertation reviewed and compared three resist methods for painting Lanaset® dyes on silk support fabric using dyes thickened with sodium alginate (SA) and sodium carboxymethyl cellulose (SCMC). Three methods of controlling dye application were used - Melinex® stencils, gutta, and cyclododecane - and the results evaluated for smooth colouring, level of definition, ability to prevent wicking, and depth of shade compared to immersion dyeing. The ease of application, preparation time, safety issues, and any special requirements were also considered.
Both thickeners helped to control wicking of the dyes. SA thickened dyes were easier to apply as they had higher viscosity, but also were more likely to result in blotchy colour orretain brushstrokes. SCMC thickened dyes created smoother, more even colour, but had a lower viscosity, making them more prone to wicking.
The investigation allowed for the formation of clear guidelines for the selection and preparation of materials, the mixing of dyes and thickeners, selecting depth of shade, and the fixing process to allow textile conservators to replicate the processes and achieve consistent and desirable outcomes.