...Reducing compounds are called developing agents, and aromatic or heterocyclic organic reducing agents such as hydroquinone, monomethyl-p-aminophenol sulfate (trade name Metol), 1-phenyl-3-pyrazolidone (trade name Phenidone), and p-phenylenediamine derivatives are used. Developers usually use a combination of two types of developing agents, and a developer containing Metol and hydroquinone as developing agents is called an MQ developer, and one containing Phenidone and hydroquinone is called a PQ developer. In addition to the developing agents, developers contain alkaline agents such as sodium carbonate, sodium hydroxide, and borax to promote development. ... *Some of the terminology that refers to "MQ developer" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…還元剤の化合物を現像主薬と呼び,これにはヒドロキノン,モノメチル‐p‐アミノフェノール硫酸塩(商品名メトール),1‐フェニル‐3‐ピラゾリドン(商品名フェニドン),p‐フェニレンジアミン誘導体などの芳香族,あるいは複素環の有機還元剤が用いられる。現像液には通常,現像主薬2種類を組み合わせて使い,メトールとヒドロキノンを現像主薬として含む現像液をMQ現像液,フェニドンとヒドロキノンを含むものをPQ現像液と呼ぶ。現像液には現像主薬のほか現像を促進するためのアルカリ剤として炭酸ナトリウム,水酸化ナトリウム,ホウ砂などを含んでいる。… ※「MQ 現像液」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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