How should I care for the brown sageo cord over time?
Updated Mar 2026
Silk and cotton sageo cords can fade or fray if exposed to prolonged direct sunlight, so positioning your display away from windows is the first step in preservation. If the cord develops a permanent crease at the knot, gently untie and re-wrap it loosely during storage to allow the fibers to relax. Avoid applying any oil or cleaning agents directly to the cord - these can cause color bleeding or fiber degradation. For the saya and blade, a light biannual application of choji or mineral oil on the steel surface is sufficient to guard against humidity. Keeping the piece in a low-humidity environment, ideally between 40-55% relative humidity, protects both the cord and the lacquered or wood saya finish.