About Sakurai's print length correction
We will also take up here the automated function optional for MSDR-30, our roll-to-roll printing machine model.
What the print length correction function is
* Squeegee presses screen gauze against a workpiece (line-contact) to transfer ink.
* Screen gauze stretches during printing
< Sakurai's print length correction function >
As one of a solution, our cylinder-type screen printing machine enables to adjust the print length through operation monitor by controlling the movement of the printing cylinder and printing plate.
Effect image of the correction function ( Squeegee direction -> )
* Accuracy of correction depends on other printing conditions.
Setting of print length correction
(1) Number of correction points
(2) Adjusting value for each point
(Printing start position = 0)
(3) Correction curve
In the example on the right, the pattern is shortened 0.13mm at 30.0mm point from the printing start position, and 0.10mm elongated at 150.0mm point.
Automatic measurement of printing position
deviation [ MSDR-30 optional function ]
It must reduce the setting time on print registration and assists improve work efficiency in which requires high printing accuracy.
< Measuring process of print position deviation >
* An example of two-color printing
[ 1st color ]
- Print registration marks for alignment and print correction.
- Measure the distance between each mark
( = correction points )
[ 2nd color ]
- Print registration marks for alignment and print correction
- Return film to scan the second printed marks and measure the distance from the first color for each point
After confirming the positional accuracy is reproduced within the standard, go to the normal printing work.
* Licensing Information
Name of invention: The expansion and contraction amount calculation device for an expansion amount calculation method and a medium to be printed of the printing medium.
Registration number: JP,6605659,B
Issue date: November 13, 2019
- SI (System Integrate) section
- TEL : +81-3-3643-0490
- E-MAIL : email@example.com