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随着现代科学技术的发展,要求胶片的加工速度越来越快,加工温度越来越高(30～40℃以上)。目前,为适应高温快速加工的要求,绝大部分国产胶片需要进行予坚膜处理。予坚在彩反加工中是一个重要工序。它对影象清晰度和彩色还原有决定性的影响。近年来,由于乳剂坚膜的改善(如太行牌彩色反转片),予坚工序在这类胶片中的作用,已次于首显、彩显而处于第三位。估计,在胶片乳剂自身坚膜能力提高之后,这一工序将逐步加以取消。予坚液是由对甲苯磺酸钠、硫酸镁、硫
With the development of modern science and technology, the processing speed of the film is required to be faster and faster, the processing temperature is higher and higher (above 30-40 ℃). At present, in order to meet the requirements of high-temperature rapid processing, the vast majority of domestically produced film needs to be treated with a hard film. To be strong in the anti-reflective processing is an important process. It has a decisive impact on the sharpness and color reproduction of the image. In recent years, due to the improvement of the emulsion film (such as the Taihang brand color reversal film), the role of the Jianjian film in this type of film has been second only to the first display, color display and the third place. This procedure is estimated to be gradually phased out after the ability of the film emulsion to self-harden its membranes increases. To hard liquid is sodium p-toluenesulfonate, magnesium sulfate, sulfur