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胶片曝光后,用Fe~(+3)/Fe~(+2)氧化还原缓冲剂,或用以对苯二胺为主剂,并含有溴离子或硫醇型显影抑制剂的显影液处理,然后再用米吐尔—抗坏血酸显影剂进行深显。将显出之银量进行比较,结果表明,溴离子与硫醇型抑制剂在显影条件下可以引起潜影的漂褪。但硫醇在潜影漂褪的同时,还具有部份保护作用。潜影漂褪作用对抑制剂的浓度和银离子一抑制剂络合物的溶度积有一定的依从关系,可利用这种关系来计算潜影的稳定性与曝光量的关系,而且可以在显影的电化势都不知道的情况下进行计算。用这种方法测得的潜影稳定性,与用Fe~(+3)/Fe~(+2)氧化还原缓冲剂所得到的数据非常吻合。
After the exposure of the film, it is treated with a Fe ~ (+3) / Fe ~ (+2) redox buffer or a developing solution containing phenylenediamine as the main agent and containing bromide or thiol type development inhibitor, Then deep with Metol - ascorbate developer. The amount of silver to be compared, the results show that bromine and thiol-type inhibitors in the developing conditions can cause latent image drift fade. However, mercaptan in the latent image drift faded, but also has some protection. The effect of latent image bleaching on the inhibitor concentration and silver ion-inhibitor complex solubility products have a certain degree of compliance can be used to calculate the relationship between the latent image stability and exposure, and can be Development of the electrochemical potential are not aware of the situation to be calculated. The stability of the latent image measured by this method is in good agreement with the data obtained with Fe ~ (+3) / Fe ~ (+2) redox buffer.