19th century embroidery sampler: wool foundation fabric, wool embroidery thread. Object from a private collection.
Surfactant: Dephypon LS45®.
1. Tested 3 surfactants, softened water and de water confirmed the instability of the blue dyes (present in blue and green shades). Had to find a solution to minimize the time and intensity of wet cleaning, details in conservation report. Continue reading