Date 2025 Height (cm) 21 Length (cm) 13 Depth (cm) 2 Weight (g) 200 Subject/Description Ancient Japanese indigo cords kept their color for 1,300 years thanks to superb dyeing skills. Modern methods have declined, so I study and reverse-engineer past techniques. My Kyoai dyeing aims for the same longevity. Indigo needs fermentation to show color; this notebook records my daily dye tests and pursuit of forgotten mastery. Archival Fund Detour_Osaka Archive number 511 Exhibitions Detour Japan - Can creativity change the world? EXPO Osaka, Italian Pavilion, 2025. Bibliography Born in Kyoto in 1990, Riku Matsuzaki discovered indigo dyeing in New York, then trained at the Nomura Silk Museum and under master Sachio Yoshioka. He revived Kyoto’s lost Kyoai dyeing and joined projects from the Shosoin treasures to collaborations with Kansai Yamamoto and Valextra. Honored by Forbes JAPAN, he pursues indigo techniques to create works lasting over a thousand years. Personal data Kyoto, Japan - 1990. Kyoai Dyeing Master