…In ancient Japan, there was black lacquer containing ash ink and transparent lacquer that is thought to have contained natural dyes. The chemical analysis of lacquer was pioneered around 1880 by Ishimatsu Ketsu, Yoshida Hikorokuro, and others, but Mikami Kisaburo named the main component of Japanese lacquer as urushiol, and Majima Toshiyuki determined its chemical formula to be C21H32O2 , and summarized it in 1924 in his book "Research on Lacquer." After the war, research on lacquer progressed through research at the Tohoku branch of the Ministry of International Trade and Industry's Crafts Guidance Office, and research has progressed, including elucidation of the unique durability of lacquer using electron microscopes and identification of ancient lacquer-like substances using infrared spectroscopy. … *Some of the terminology that refers to "Study of Urushi" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…古代の日本には灰墨を入れた黒漆と天然染料を入れたと思われる透漆があった。漆の化学的分析は1880年ころ,石松決,吉田彦六郎らによって先鞭がつけられたが,三上喜三郎は日本産漆の主成分をウルシオールと命名,真島利行はその化学式C21H32O2を決定し,1924年《漆の研究》にまとめた。戦後の漆の研究は通産省工芸指導所東北支所での研究を経て,電子顕微鏡等による漆特有の耐久性の解明や,赤外線分光器等による古代漆状物質の同定などの研究が進んでいる。… ※「《漆の研究》」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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