~It doesn't have to be the same speed! ~
An important condition for screen printing is "printing speed (moving speed of squeegee)".
If you are an experienced person, I think that the item of "printing speed" is always listed in the printing condition table.
All of our products, except manual printing presses, have a function to control the "printing speed".
In recent fully automatic machines, it is possible to register "printing speed" as a recipe.
For example, when you enter a product code, the "print speed" suitable for that product is automatically set.
If you are an experienced person, I think that the item of "printing speed" is always listed in the printing condition table.
All of our products, except manual printing presses, have a function to control the "printing speed".
In recent fully automatic machines, it is possible to register "printing speed" as a recipe.
For example, when you enter a product code, the "print speed" suitable for that product is automatically set.
Now, what should you pay attention to when setting the "print speed"?
"Printing speed" is directly linked to productivity, so considering manufacturing costs, it should be as fast as possible.
However, if the "print speed" is increased, the "plate separation" becomes worse.
Poor plate separation affects print quality.Therefore, when setting the "print speed"
Set the "print speed" so that the "plate release" state is constant.
However, if the "print speed" is increased, the "plate separation" becomes worse.
Poor plate separation affects print quality.Therefore, when setting the "print speed"
Set the "print speed" so that the "plate release" state is constant.
The introduction has become a little long, but from here we will enter today's main topic.
What influences "version release"?
The conditions that affect "plate release" include "printing pattern area", "ink viscosity", and "plate size and tension".
There are "clearance" and so on, but here we will focus on "area of printed pattern".
If other conditions are the same and the plate separation is compared, for example, "50 mm square" and "200 mm square"
The latter is worse for print patterns.
This is because if the contact length between the squeegee and the pattern is long, the ink transferred to the workpiece will
This is because the adsorption force of the plate increases.
There are "clearance" and so on, but here we will focus on "area of printed pattern".
If other conditions are the same and the plate separation is compared, for example, "50 mm square" and "200 mm square"
The latter is worse for print patterns.
This is because if the contact length between the squeegee and the pattern is long, the ink transferred to the workpiece will
This is because the adsorption force of the plate increases.
Poor release of the plate lengthens the contact time between the plate and the workpiece, resulting in a difference in printing quality.
The reason for controlling the printing speed and registering the recipe is to improve the repeatability of "plate separation".
This makes it possible to print square patterns with stable quality, but the situation is different for circular patterns.
In a circular pattern, the contact length between the squeegee and the pattern changes as the squeegee moves.
In a circular pattern, the contact length between the squeegee and the pattern changes as the squeegee moves.
Then, as I wrote earlier, the state of "plate release" changes from moment to moment.
If the squeegee speed is constant, the print quality may vary depending on the squeegee stroke position.
If the squeegee speed is constant, the print quality may vary depending on the squeegee stroke position.
In that case, it would be better to change the "print speed".
Print speed: it doesn't have to be the same speed!
Reference material Patent No. 4956007
