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 »
Have you ever come across any terms that have a similar name but express different concepts?Halftones and midtones: do they refer to anything that stays in the middle of something?And what about trap and trapping?
A short video to explain the meaning of minimum dot and why it is one important information to describe the characteristics of your flexographic printing condition.
What are the correct units of measure to describe the engraving specifications of anilox rolls?I hope this short video serves to clarify this aspect with correct terminology.
A short video on the reasons why in flexography it is necessary to use specific angles for the halftone screens.
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 …
How many resolutions do we need to know in flexography?There are four important information related to resolution within the flexo workflow. 1# The resolution of the anilox roll, or its line-screen or cell-count, that is the number of cells engraved on the surface by linear unit of measure. We express it, in the metric system, …
Have you ever wondered why we need to use different screen angles in flexography? First of all we need to remember that we consider the screen angles when we look at the final printed product, so the parameters we set in the prepress/imaging workflow are meant to obtain the angles as described. Then we need …
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 …
The term “round dot” refers to the screening algorithm that tends to draw round shaped dots. Let’s not forget, however, that the original digital file is made of square pixels. These pixels are the binary information that is sent to the laser to write the image: write / don’t write = on / off. Therefore, …
