Silver dye bleaching method

Japanese: 銀色素漂白法 - ぎんしきそひょうはくほう
Silver dye bleaching method

...This method produces a color image in a few minutes, so it is used for instant photography. (3) Silver Dye Bleaching Method: A method in which azo dyes and other dyes that have been added to the photosensitive layer in advance are bleached by the developed silver obtained according to the amount of exposure, and a positive color image is formed from the remaining dyes. Since the appropriate dye can be selected from a large number of azo dyes, a color image that is brighter and more light-resistant than that obtained by the color development method is obtained.

*Some of the terminology used in reference to the "silver dye bleaching method" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…この方式は数分間で色彩像が得られるので,インスタントフォトグラフィーに用いられている。(3)銀色素漂白法 感光層中にあらかじめ加えられたアゾ染料などの色素を,露光量に応じて得られた現像銀により漂白し,残った色素によりポジの色彩像を形成する方法。多数のアゾ染料の中から適当な色素を選択できるので,発色現像法に比較して色が鮮やかで耐光性の高い色彩像が得られる。…

※「銀色素漂白法」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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