How to Perform Troubleshooting on Gravure Printing
                     How to 
Perform 
Troubleshoot
ing on 
Gravure 
Printing
Introduction
In order to improve the quality of their printed products while maintaining the 
costs necessary to bring the product to market, gravure printers have historically 
been on the cutting edge of technology. They have incorporated newer, faster 
presses, more dependable and durable components and consumables, and 
cutting-edge control systems. Gravure printers nevertheless encounter a variety 
of print-related problems that prevent them from achieving their cost and 
quality objectives despite taking these measures. This troubleshooting manual 
was created by a variety of providers and manufacturers to the gravure print 
industry with the goal of assisting you in determining the issue's root cause and 
offering a workaround.
Flexo CtP Systems. Miraclon. Cron. akk. Is the earliest 
Gravure Printing Cylinder Supplier in India.
1. Fixing the hue shift
 Consult the department of cylinders first. Verify the register and that the 
cells are set up correctly. Adjust the electric eyes, then turn down the 
dryer's temperature, and finally fill the fountain with new ink (and add 
less slip compound).
 2. Address drying issues 
When ink dries on the cylinder walls, it is known as drying in. There are 
normally only two reasons for this: improper press conditions or ink that 
dries too quickly. There are several things you may do to improve the press 
conditions, including:
Examine the oven's temperature, air flow, and blade angles.
Clean the cylinder, take away the attached spot air system, Aerated fountains, 
increase the press's pace.
Add a slow-drying solvent, reduce the viscosity, and alert the ink provider if 
the ink is drying too quickly.
3. Have a plan for dealing            
      with an uneven appearance
      The paper surface, big cells in the cylinder, pressure on the 
impression roller, and too thin ink can all contribute to the 
formation of dark and light patches that are referred to as 
puddling, mottling, and volcanoes. The problem may be resolved 
by adjusting the roller, consulting the cylinder department, or 
altering the ink viscosity.
4. Quit scuffling your tracks.
      The ink itself, the press environment, or the paper are likely to blame for 
any scratches or scuffs in the ink. 
      What you can do to solve the issue is as follows:
Add hardeners or wax to the ink.
      Examine and correct the ink viscosity.
      Change the solvent system to improve the integrity of the ink film.
      Boost the oven's setting.
      Verify the paper's abrasion.
5. Don't Allow a Strike-
Through to Depress You
Increase the ink viscosity, oven temperature, and airflow while 
lacquering the cylinder and adding a pigment extender. If it doesn't solve 
the issue, it might be the paper itself, and the solution is to use less 
absorbent paper. If not, it might be the ink holdout, in which case you 
should speak with the producer.
6. Modifying Color Intensity
By lacquering a portion of the cylinder to reduce cell capacity, speaking 
with the cylinder department, adding solvent to lower the ink's viscosity, 
and adding a clear extender, you can fix the issue of too much color.
The following are some potential fixes when the color is too weak:
-By re-etching the cylinder, increasing cell volume
-Raising the viscosity of the ink
-Cylinder cleaning
-Diminishing the angle
-Swapping out the roller
-Removing toner
-Examining the automatic ink batcher
7. Increase Ink Volume 
Enhance the starting process to minimize waste, use 
less absorbent paper, modify the ink-solvent ratio to 
achieve the required viscosity, reformulate the ink if it 
is absorbing the stock too quickly, and inquire with the 
manufacturer about the ink gravity values.
8. Prevent Frothing 
and Foaming of Ink
First, instead of letting the ink fall, try introducing it to 
the pan through a hose. Next, check the pump for leaks 
or slow down the pump to minimize agitation. You might 
also experiment with changing the ink's viscosity or 
adding a defoamer substance.
9. Modify Gloss 
Levels
If the gloss is too high, either use a coloured extender or add a solvent to 
lessen viscosity. Add a gloss extender, raise the viscosity, or use less solvent 
to increase low gloss.
10. Make sure color 
reproduction is 
coHenre asre siesvertal ewayns tot tr.oubleshoot color fluctuation, which can be 
caused by a variety of problems:
-For all operators, adopt a single set of processes.
-Utilize measured amounts only.
-Calibrating or equating the flow rates
-Inspect and clean the machinery in between presses.
-Use inks with similar strengths
THANKS!
Do you have any questions?
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https://primetechgravures.com