Discussion on Prepress Preparation for Color Box Printing

　　Dongguan Printing Factory introduces that during the process of color box printing, quality problems often occur due to inadequate pre press plate making. This can range from wasting materials and working hours to product scrapping and causing serious economic losses.

　　When different types of color boxes need to be assembled on a printing plate for printing, if products with the same or similar color tones are not assembled in the same vertical position during the assembly, there may be a phenomenon where A product can meet the standard of the sample draft, B product is basically close to the standard of the sample draft, C product has a slight color difference with the sample draft, and D product has a large color difference with the sample draft. Therefore, when assembling, products with warm, cool, and intermediate tones should be assembled in the same vertical position to facilitate printing of high-quality products.

 
　　1. Dongguan Printing Factory stated that if the non graphic and textual parts of the color box are placed at the mouth during plate assembly, and the drag end is not a continuous tone image, but a flat screen or solid surface, it is easy to produce "ghostly shadows" during printing, seriously affecting product quality. At this point, the non graphic and textual parts should be placed at the trailing edge, so that no "ghostly shadows" appear.

　　2. Overview of Dongguan Printing Factory: When assembling, attention should also be paid not to omit the finished product line of the color box in order to save film, but to rely on the printing and printing personnel to calculate the position of the mouth and the finished product. This will greatly affect production efficiency and may also cause major accidents due to the negligence of the printing and printing personnel.