Four elements of printing quality control and testing methods

Four elements of printing quality control and detection methods Release time: 2020-07-06 Printing quality refers to the comprehensive effect of various appearance characteristics of printed matter. From the perspective of reproduction technology, the quality of printing should be based on the 'faithful reproduction of the original' as the standard. Whether in the traditional printing process or in the digital process, the printed matter must be copied faithfully to the original manuscript.　　Printing quality control element 　　There are 4 control elements for printed matter: color, gradation, clarity, and consistency.　　1, color　　Color is the basis of product quality, and directly determines the quality of the product. Color control or management is always a key link in the research and analysis of printing professionals.　　2, gradation 　　 is the gradation, which refers to the step change of the recognizable color of the image. It is the basis for accurate color reproduction.　　3, sharpness 　　 definition refers to the clarity of the image details, including three aspects: the clarity of the image's subtle levels, the clarity of the edge of the image outline, and the clarity of the image details.　　4. Consistency 　　 Consistency is uniformity, which includes two aspects. On the one hand, it refers to the consistency of the ink volume of different parts of the same batch of printed matter, that is, different ink areas. It is generally measured by the consistency of the vertical and horizontal solid density of the printed matter. It reflects the stability of different parts of the printed matter printed at the same time. On the other hand, it refers to the consistency of the density of different batches of printed matter in the same part, which reflects the stability of the printing press. Previous: How to create high-quality yogurt cover film products?