How does flexographic printing work?
Have you ever wondered how the principle behind flexographic printing works?Perhaps this explanation could be useful…
Anilox
The unbearable sustainability of flexography
The sustainability of a printed package doesn’t depend only on the type of substrate used: prepress activities and printing conditions play an important role too. In this article, published on Converting magazine, I tried to give some indications to achieve very significant savings in the flexographic process. You can download the full article with English …
Ghost images in flexo printing
The appearance of ghost images in printing is a brain teaser for many flexographic press operators.Can you recognize the different types of ghosting?Do you know the reason of the most common ghosting defects?Take a look at this video to know more.
Scoring lines on anilox rolls
What is one of the worst problems that can happen in the flexo pressroom?One anilox roll damaged by scoring lines means stopping a production or accepting a print defect.Why do these scoring lines occur on the anilox surface?What happens in printing?What can we do to prevent this problem?I gathered some ideas in this video pill, …
Can you help me to print white?
From a phone call and an email exchange with a flexo printer I propose a quick troubleshooting about printing white ink on transparent BOPP.
How many resolutions?
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, …
Fear of ghosts?
Description Causes Remedies Description With the term “ghosting” we describe the presence of a faint image of a design that shows in areas where it was not intended to appear. Usually it is a repeated pattern on print along machine direction. Causes The main cause is attributable to the failure of replenishing, with fresh ink, the …
Do you really think that dot dipping doesn’t exist?
I recently came across an interesting video that was published by one anilox rolls manufacturer that, in the attempt of promoting their technology, depicts dot dipping as an industry myth and illustrates flexo users, who believe that this problem exists, as troglodytes… “The industry myth that dot dipping is occurring within the anilox cells is impossible. Physics …
Do you really think that dot dipping doesn’t exist? Read More »
Dirty highlights: dot dipping or ink spitting?
Can you recognise the cause of dirty printing in highlights?It is important to understand wether the issue is related to dot dipping, thus plate-to-anilox ratio, wrong metering of the anilox surface or other causes.What is visible on the printed product is a generally a dirty aspect that forces to repeated stops for plate cleaning and …
Can you see how dirty is your anilox roll?
Ink transfer efficiency, ink coverage, color density, color matching and overall print quality strongly depend on properly maintained and clean anilox rolls.Check your anilox rolls thoroughly with proper high magnification viewing tools to ensure that your cleaning operations were effective.