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染液对染印法空白片匀染性的优劣将直接影响影片画面斑点及稳定性。一般说来,匀染性好不易产生斑点;反之斑点易产生。由于染印黄、品红、青色须分次进行,故形成斑点的几率远比多层彩色片高。所以,如何提高染液对接片之匀染性,减少斑点,显得十分重要。染印法胶片匀染性可用如下简易方法测试:用规范定影的空白片一条,于固定染料浴(固定染料、pH、浓度和温度)染色2分钟,然后凉干。通过其染色密度和匀染程度,便可相对看出被测胶片之匀染性。试验表明,伊斯曼5037空白片,不仅上色密度大,而且十分均匀;相反,有些斑点较多的空白
Dye on the dye printing method of the advantages and disadvantages of the flatness of the film will directly affect the movie screen spots and stability. In general, flatness is not easy to produce spots; the other hand, spots are easy to produce. Due to dyeing yellow, magenta, cyan to be divided into several times, so the probability of forming spots is much higher than the multilayer color film. Therefore, it is very important to improve the levelness of the dye-coated butt joint and reduce the spots. Dye-printing method The film-levelness can be tested by the following simple method: Use a blank sheet fixed in the standard and stain in a fixed dye bath (fixed dye, pH, concentration and temperature) for 2 minutes and then dry it. Through its dyeing density and level of dyeing, can be relatively seen by the measured film of the level of dye. Tests showed that the Eastman 5037 blank film, not only the color density, but also very uniform; the contrary, some spots more blank