The details of carton box printing
The details of carton box printing
1.When different types of cartons need to be put together on one plate for printing, if products with the same or similar tone are not put together in the same longitudinal position, it may occur that A product can meet the standard of the printing sample, B product is basically close to the standard of the printing sample, C product has a slight color difference with the printing sample, and D product has a large color difference with the printing sample. Therefore, warm colors, cool colors and intermediate colors should be put together in the same longitudinal position when making plates, so as to facilitate the printing of high-quality products.
2. Before printing, the film should be carefully compared with the proof, if the film density of the main tone is too large, the exposure time should be added when printing, to avoid heavy printing tone; If the density is small, the exposure time should be reduced when printing, so as not to lose the dot affect the color reproduction.
3. When assembling plates, if the non-graphic part of the carton is placed in the mouth, and the image placed at the drag tip is not continuous adjustment, but flat net or field, then it is easy to produce "ghost" during printing, which seriously affects the quality of the product. At this time should put the non-graphic part in the drag, so that there will be no "ghost".
4. When assembling plates, it should also be noted that the finished line of the carton should not be omitted in order to save film, but that the printing and printing personnel should calculate the position of the mouth and the finished product, which will greatly affect the production efficiency, and may also cause major accidents because of the temporary negligence of printing and printing personnel.
5. Ensure that the film meets the printing requirements, after the film output carefully check whether the text on the film is consistent with the proof, to ensure the correct alignment between different films, this is because a set of film is usually output twice, its overprinting accuracy is easy to be subjected to some objective reasons. The effect of hormones. The output film should be remade in case of quality problems.
6. The output film usually does not contain the pull indicator line, but if the mouth and drag are blank, it will bring great inconvenience to the printing and positioning of the carton. To this end, it is necessary to make a pull-gauge marking line on the film. Those who do not need to mount corrugated cardboard packaging box, pull marking line made in the body part; Need to mount corrugated cardboard packaging box, pull marking line made in the outward part of the click to open the link
