感光胶片制造的工艺流程较为复杂,如原料、配方、工艺、控制等方面,稍有变动都会影响其各方面的性能指标。尽管胶片厂对出厂的胶片都进行过检验,由于测试方法不同或其它原因,因此,每批胶片在洗印部门都要对质量进行技术鉴定。现将鉴定过程中有关表观质量部分常见的弊病介绍如下: 表现质量的鉴定主要是检查乳剂层和片基的纯洁度。检查时,将每一轴号的胶片抽 Photographic film manufacturing process is more complex, such as raw materials, formulations, processes, controls, etc., a slight change will affect all aspects of its performance. Although the film factory has been tested on the factory film, due to different test methods or other reasons, therefore, each batch of film in the printing sector should conduct a technical assessment of the quality. Now the appraisal of the apparent quality of the common part of the shortcomings described below: The quality of identification is mainly to check the emulsion layer and the base of the purity. Check that each axis number of film pumping