Corrugated cardboard printing ribbon color shades vary?
Time:2024-07-17
Views:165
The color shades of corrugated cardboard printing ribbons are different shades of the same color ink during the printing process, a situation that can greatly reduce the quality of corrugated cardboard printing. The following are some measures to prevent and improve the color shades of the ribbon:
1. Apply ink evenly:
When printing, it should be ensured that the ink is applied evenly each time, and the principle of proper and appropriate amount of ink application should be followed. Too much or too little ink application will lead to the printed ribbon color shades.
2. optimize the printing plate and ink:
Reasonable printing plate making and color mixing are vital to ensuring the quality of corrugated board printing. When making printing plates, high-quality raw materials should be selected, and the thickness and degree of wear of the plates should be controlled. Color selection and blending need to be customized according to the material and printing quality requirements of the corrugated board to avoid problems of excessively dark or whitish inks.
3. Conduct proper pre-printing treatment:
Tearing off very few processing accessories before printing is low-cost, and can both increase the surface smoothness of the printed material and improve the quality of the printed material. Multiple ink scraping work of good quality, small areas caused by color difference will be more difficult to trace the problem.
4.reasonable adjustment of equipment:
Printing, should control the power and efficiency of the printing equipment, in accordance with the quality requirements of the case of appropriate adjustments. Especially for some automated printing machines, should be every once in a while anilox roller cleaning and maintenance equipment, balance correction gap error control in ≦ 4 microns, to avoid machine failure, to ensure the stability of the quality of each printing.
5. Do a good job of quality control:
The key to improving the quality of corrugated cardboard prints is to do a good job of quality control. Some professional testing tools, such as colorimeter and optical microscope, can be used to test the quality of printed products, so as to find and solve problems in the printing process in a timely manner.
To sum up, preventing and improving the color shades of corrugated cardboard printing ribbons requires the use of a variety of measures. The inking process should be uniform, the production and color mixing of printing plates and inks should be reasonable, appropriate pre-printing treatment should be carried out, the printing equipment should be reasonably adjusted, and the quality control work should be done well, and so on. As long as we do a good job with these key elements, we can effectively prevent and improve the problem of varying color shades of corrugated board printing ribbons.
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