Welcome to Dongguan Xinhe Electromechanical!
All
- All
- Product Management
- News
- Introduction
- Corporate Outlets
- FAQ
- Corporate Video
- Corporate Brochure
News
News center
Contact Us
Headquarter Address: Baihao Industrial Zone, Houjie Town, Dongguan City, Guangdong Province
Tel：+86 769-85923778 85923738
85878200
Fax：+86769-85924507
Website：http://www.dg-xinghe.com
E-mail：cds@dg-xinghe.com
Measures for adjusting offset printing pressure
Published Time：
2012-12-10
I. Printing Pressure Concept
Low printing pressure refers to minimizing the pressure between rollers while ensuring sufficient ink transfer for optimal printing results. It ensures that the printed matter is clear, the dots are full but not wasted, and the halftone gradation is clear and rich, while minimizing pressure.
II. Impact of High Printing Pressure on Print Quality
Excessive printing pressure significantly impacts product quality. Excessive pressure easily causes dot deformation, blurring, and excessively dark ink, even image distortion; excessive pressure also accelerates plate and roller wear.
III. Examination of Printing Pressure
The most common and intuitive method for checking printing pressure is the ink bar method. Detailed operation steps: Raise the water roller, lower the inking roller, run the machine at low speed and apply pressure, and stop after the surface of the three rollers is evenly inked. If the ink bar width on each roller at the stopping point is within the given range and uniform, and the ink bar width of the impression roller and rubber roller is greater than that of the plate roller and rubber roller, it indicates that the pressure adjustment is uniform and appropriate. If the ink bar width is wider on one side and narrower on the other, the most likely cause is inconsistent center distance between the rollers. Original text
IV. Adjustment of Printing Pressure
The optimal method for adjusting printing pressure is to ensure the gears are in standard meshing and adjust the thickness of the packing to achieve optimal printing suitability.
When printing thick paper, the optimal method for adjusting printing pressure is to reduce the packing thickness of the rubber roller, increase the packing thickness of the plate roller, and make minor adjustments by changing the center distance between the rollers, and readjust the ink roller pressure.
Printing pressure is a key prerequisite for successful offset lithography, and ideal pressure between rollers is crucial for ensuring print quality. The ability to achieve low pressure (even with ideal pressure) is one of the important indicators of skill level and a key prerequisite for ensuring high-quality and high-output printing.
Headquarter Address: Baihao Industrial Zone, Houjie Town, Dongguan City, Guangdong Province
Tel：+86769-85923778 85923738 85878200
Fax：+86769-85924507
Website：http://www.dg-xinghe.com
E-mail：cds@dg-xinghe.com
Copyright © 2025 Dongguan Houjie Xinhe Electromechanical Business Department ALL Rights Reserve.