frit

Japanese: frit
frit

…Other coloring ingredients include Fe 2 O 3 , Cr 2 O 3 , CoO, MnO 2 , and CuO, and for opacification, SnO 2 and ZrO 2 are used. Raw materials include natural rocks such as silica stone, feldspar, limestone, and pottery stone, as well as wood ash, and glass powder called frit. Frit is made by vitrifying water-soluble raw materials such as Pb 2 O 3 , B 2 O 3 , and sodium salts in order to make them insoluble. …

*Some of the terminology explanations that mention "frit" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…このほかに,着色成分としてFe2O3,Cr2O3,CoO,MnO2,CuOを,また乳濁させる場合にはSnO2,ZrO2などを含む。原料としては,ケイ石,長石,石灰岩,陶石などの天然の岩石類や木灰類のほかに,フリットfritというガラス粉を使用する。フリットは,Pb2O3,B2O3,ナトリウム塩などの水溶性の原料を不溶化する目的でガラス化したものである。…

※「frit」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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