However, the purple dye used at the time was made from purple gromwell, not shellfish. This indicates how highly prized the color was in Japan as well by this time. Under the “Twelve Level Cap and Rank” system introduced in 603 by Prince Shōtoku, indicating the rank of ruling officials, the highest rank was indicated by a deep purple color, followed a rank indicated by light purple. For his accomplishment in reviving the method of creating a natural royal purple pigment, Akiyama was recognized as a “contemporary modern craftsman” by the Japanese government. Because the protein of the dye is separated, purified, and reduced to a powder, it is possible, whenever, to produce the desired depth of color. The underlying principle for generating color is the same as that of indigo dyeing, and Akiyama was able to arrive at this new method thanks to the dedication he had shown to the process of natural indigo dyeing. This original method of creating a pigment from shellfish through reduction was pioneered by the founder of Aya Dyeing & Weaving Studio, Masakazu Akiyama, through his tenacious struggle from 1978 to 1980. Reduction, meanwhile, is a method that involves chemically reducing the fluid secreted from the shellfish and then exposing the material soaked in this solution to oxygen to generate the pigment. The direct method involves removing the fluid secreted from shellfish and applying it to the material, then exposing it to ultraviolet rays from sunlight or other sources for the pigment to appear. There are two methods for extracting the Kaimurasaki dye: the direct method and the reduction method. Our original Kaimurasaki dyeing technique
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