Case Study: Restoring a 1480 Florentine Chasuble Orphrey
A 1480 Florentine chasuble arrived at a diocesan conservation center with its central orphrey band bleached to near-white — five centuries of candlelight and incense resin had stripped every trace of what archival records described as a deep kermes crimson ground. Without a systematic method for modeling the interaction between organic dye loss and silk substrate degradation, the conservator faced the real possibility of producing a match that looked accurate under ISO D65 lighting but failed in the sanctuary's candlelight. Fadeboard changed the calculus by letting the team treat time and chemistry as separate fader channels, resolving each independently before producing a final fragment-exact color proof.