ナフトール染せん料りょう

noun

naphthol dye; azoic dye; ice color

Technical term in dye chemistry; refers to a class of dyes formed by coupling a diazonium salt with a naphthol component, often applied to fabric in a cold process.

• ナフトール染せん料りょうは、繊せん維いの染せん色しょくに広ひろく使つかわれている。

  Naphthol dyes are widely used for dyeing textiles.