Screen Dot Deformation in Flexo Printing
This article is part of the #FlexoFlawFixing series.
In the complex world of flexo printing, producing crisp, clear images is paramount. But sometimes a persistent problem arises that can derail even the most meticulous print runs: deformed screen dots. This anomaly can turn what should be pinpoint precision into a blurry mess, drastically undermining print quality.
In this guide, we look at the causes and solutions to screen dot deformation in flexo printing and offer practical advice to ensure your flexo printing remains top-notch.
Causes and Remedies for Screen Dot Deformation
Identifying the culprit behind deformed screen dots is the first step to solving the problem. Often the dilemma lies not in the equipment but in the pre-press stage, so a thorough check of the artwork is crucial. If the artwork is found to be faultless, the next focus is on the screen itself, the condition of the flexo plate and the adhesive tape that holds it in place. These components must work in harmony to produce the desired image clarity.
Anilox Roll Issues
Misaligned Printing Plates
Web Tension Issues
Speed Synchronisation
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Inappropriate Relief Depths
Pressure Variations
Variations in Plate or Tape Thickness
Conclusion and Reminder
Achieving the perfect print is a delicate balance that requires attention to a myriad of details. Screen dot deformation can be an annoying problem in flexo printing, but with the right approach, they are entirely manageable. Regular diagnostic checks, precise adjustments and a thorough understanding of how your equipment interacts can eliminate many of these problems.
Build routine maintenance into your workflow. Make sure your screens are properly tensioned, thinner inks are used when necessary and print heads are spotlessly clean. These seemingly small adjustments can make a big difference to the quality of your prints.
Remember, preventing deformed screen dots not only saves your current project but also maintains the integrity of your printing practice. By fostering an environment where precision is paramount, you’ll continue to produce prints that embody clarity and quality.
Did you find this interesting? Learn more about flexo printing at Flexopedia.
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7 个月A good article that allows you to properly organize the quality control process. I agree with the author that constant monitoring and control of the raster dot shape helps to have an excellent result at the output. There are no trifles in flexography, as the author correctly noted, it is necessary to monitor absolutely everything. And only after a thorough analysis of the process, the printing company will be able to choose the ideal formula for itself, which may differ from other converters. So I agree 100%. Thank you for your work, which helps to solve problems systematically.