菲尼酮/对苯二酚和米吐尔/对苯二酚二类系统中菲尼酮与米吐尔的显影性能比较

Comparaison of development properties of phenidone and metol in phenidone/hydroquinone and metol/hydroquinone systems

本文结合实际使用效果,扼要阐述了,与传统的米吐尔(对甲氨基苯酚)/对苯二酚系统对比,菲尼酮(1-苯基-3-吡咯烷酮)/对苯二酚系统的一系列突出的优点,如:菲尼酮的最佳含量较低,宜于配制成浓缩套药;显影初阶段速率高,有利于快速冲洗;菲尼酮和对苯二酚单磺酸盐的超加和性强,而且菲尼酮的氧化产物能被对苯二酚还原,回复原状,使显影液中的菲尼酮浓度保持恒定,等等。

This paper outines a series of significant advantages of phenidone (1-pheny1-3-pyrazoli-done) /hydroquinone system in compairon with traditional metol (p-methyl-amino-phenol) /hydroquinone system, closely relating to their practical performance, e. g. : lower optimum concentration for phenidone, thus convenient for preparing more concentrated processing kit; high speed of initial development, appropriate for rapid processing; superadditivity of phenidone with hydroquinone monosulfonate, and reduction of phenidone oxidation pro duct to phenidone by hydroquinone, thus keeping the phenidon concentration constant in the developer, etc..