申请人:EASTMAN KODAK COMPANY
公开号:EP0740200A1
公开(公告)日:1996-10-30
A photographic element having a support and a layer containing first and second oxonol dyes, the first dye being a monomethine pyrazolone oxonol dye with each pyrazolone ring having a 1-phenyl group bearing an ortho-substituent selected from sulfo, sulfato, hydroxy, or nitro substituent, and the second dye being a tri- or penta-methine oxonol dye. A method of making a photographic element is also provided. The method comprises maintaining a mixture of at least such a first dye in a carrier medium at a temperature of at least 30°C for 0.5 hour.
一种感光元件,具有一个支撑层和一个含有第一和第二羰基酚染料的层,第一染料是一种单甲基吡唑酮羰基酚染料,每个吡唑酮环都有一个 1-苯基,带有一个选自磺基、硫基、羟基或硝基的正取代基,第二染料是一种三甲基或五甲基羰基酚染料。还提供了一种制造感光元件的方法。该方法包括将至少这样一种第一染料的混合物在至少 30°C 的温度下保持在载体介质中 0.5 小时。