We often hear about a numerical ratio between the screencounts of the flexo plate and that of the anilox roll.In ancient times it was also said that it had to be an odd ratio, like 1:3, to avoid moirée.Then numbers like 1:5, 1:6, 1:7 arrived…There actually is a relationship but it’s not really based on […]
No… There is no ratio between plate and anilox screencounts. Read More »
When referring to the screening of the flexo plate, it is possible to confuse whether it is the screening of halftones, which produces the tonal gradations, or the surface structure of the plate applied to improve the ink transfer and laydown.Let’s see what the differences are between these different screenings and how they are connected
What screening are you talking about? Read More »
Increasing print quality by printing a higher plate screencount is often requested.And one of the typical questions is “how far can I push it to print with the same anilox roll?”With this short video I touch some aspects to be considered.
Can you print a higher screencount on the same anilox roll? Read More »
Natural Plate Compensation (NPC) curves are a new and simplified method designed to determine and apply plate compensation curves within any flexographic workflow. This method provides smooth transitions and equidistant tone values directly within the compensation curves by making best use of measurements according to ISO 20654:2017 – Graphic technology – Measurement and calculation of
Discover the new Natural Plate Compensation Curves for flexography Read More »
Measurement is the basis of process control. The measurement of dot area coverage or dot percentage is fundamental to define the characteristics of our printing system, to calculate compensations of tonal values for plate making and, finally, to control the production.In 2017, a new method for the calculation of dot area percentage was introduced. ISO
It’s time to change the way we measure dot percentage! Read More »
What is the best resolution for images to be printed in flexography? Well, it depends first of all on the distance that the printed product will be looked at by the viewer: this will determine the suitable linescreen that the image will have on the printed product. A general guideline for AM screening defines a
What is the best resolution for images in flexo? Read More »
There are different dot shapes for screening: round, square, euclidean, elliptical, … which one is the best for flexography? (*) When choosing the dot shape for plate screening, it is important to consider the characteristics of the different geometries and their influence on the printed result. When the plate is inked by the anilox roll and
What’s the best dot shape for flexo? Read More »
The information about the size (typically the diameter) of the minimum isolated dot refers to the characteristics of the plate and it is normally completed with the term positive and/or negative. Example: Minimum positive isolated dot: 100 µm Minimum negative isolated dot: 50 µm The minimum isolated dot size indicates what is the ability of
What does “isolated dot” mean? Read More »
The information about minimum dot indicates what is the size of the minimum printing dot that appears on the plate. This size is normally expressed in microns (µm), or, less commonly, as a percentage of a given linescreen, and it is set as a threshold in plate imaging to obtain such size on the finished
What does “minimum dot” mean? Read More »
Dot dipping describes the condition whereby the smallest dots on a flexo plate dip into the cells of the anilox roll when forced by the impression between anilox and plate. Some dots of the plate, dipping in the cells, will carry more ink than what was expected, resulting in dirty printing in highlights, typically seen
Dot dipping (in anilox) Read More »
