• Best Wishes to all for a Wonderful, Joyous & Beautiful Holiday Season, and a Joyful New Year!

Balance of ink and water. Patches for control.

Tomas

Member
Hello colleagues.
(A question about printing on cardboard with offset oxidative inks)

Sorry for the stupid question: do you know any control patches for determining the amount of water
(supply of dampening solution to the form/sheet) during the printing process.

Let me explain. The operator, performing adjustment according to the design on the sheet, selects a certain
balance between the amount of ink and water. At the same time, you and I understand that the range of such
a ratio is quite wide, but having chosen the wrong proportions (balance), we will probably see a problem during
the print run in the form of printed blank elements or emulsion, washed-off ink and uneven tones in the print run. And it will be too late.

If with a lack of water everything is simple and it is visible on raster patches, then if there is a lot of water,
it may not manifest itself in any way.

That is why I wondered if there are such very sensitive patches that will indicate an excess of water, indicate
that the minimum-sufficient water has turned into excess and measures must be taken to reduce it.

And so that these patches visually change relative to one proportion to another and the operator could orient himself looking at them.
 
Hello colleagues.
(A question about printing on cardboard with offset oxidative inks)

Sorry for the stupid question: do you know any control patches for determining the amount of water
(supply of dampening solution to the form/sheet) during the printing process.

Let me explain. The operator, performing adjustment according to the design on the sheet, selects a certain
balance between the amount of ink and water. At the same time, you and I understand that the range of such
a ratio is quite wide, but having chosen the wrong proportions (balance), we will probably see a problem during
the print run in the form of printed blank elements or emulsion, washed-off ink and uneven tones in the print run. And it will be too late.

If with a lack of water everything is simple and it is visible on raster patches, then if there is a lot of water,
it may not manifest itself in any way.

That is why I wondered if there are such very sensitive patches that will indicate an excess of water, indicate
that the minimum-sufficient water has turned into excess and measures must be taken to reduce it.

And so that these patches visually change relative to one proportion to another and the operator could orient himself looking at them.
No, there is no substitute for a competent tradesperson
 
The old GATF had a target of diagonal lines in front of a solid bar. Excess dampening (flooding, washout) would leave a low density "ghost" in the solid behind the diagonal lines.
 

InSoft Automation

InSoft Automation Unveils Imp Version 14

Revolutionizing Layout Planning and Automation

InSoft Automation announces the launch of Imp Version 14, the latest iteration of its industry-leading cost-based layout planning software. Packed with cutting-edge features, this release redefines efficiency, automation, and workflow optimization for printing and finishing processes.


Learn more…….

   
Back
Top