Four-color printing generally refers to the printing process of reproducing various colors of original manuscripts using yellow, magenta, cyan, and black inks. Spot color printing, on the other hand, refers to the printing process of reproducing the colors of the original manuscript using inks other than the four-color inks mentioned above. Spot color printing is […]
Category: Printing
What to Do When Offset Printing Encounters Ghosting and Ink Bars?
When using offset printing machines, issues such as ghosting and ink bars often arise. Here, we will analyze the causes of these problems and provide solutions for readers’ reference. Paper Tape Tension Paper tape tension is a crucial factor in ensuring print quality on offset printing machines. Inappropriate tension can lead to unstable paper tape […]
What to Do When Coated Whiteboard Paper Turns Yellow?
The phenomenon of yellowing in coated whiteboard paper refers to a decrease in whiteness after a certain period of storage or exposure to sunlight. Research on the yellowing phenomenon of coated whiteboard paper and its mechanisms, as well as identifying various factors causing yellowing and measures to stabilize whiteness, has been receiving increasing attention. This […]
Practical Tips for Ink Changing and Cleaning
During the offset printing process, especially in monochrome offset printers, whether it’s the Y, M, C, BK four-color printing or for trademarks, packaging decoration, ink changing and cleaning are often required, which involves cleaning the entire ink delivery system of the offset printer and then replacing it with fresh ink. The ink washing device consists […]
Methods for Accurate and Stable Color Output
Color management systems operating within color desktop environments require stable output, proofing, sampling, and printing quality to ensure the accuracy of color output. Color management involves both controlling and standardizing output devices, establishing target characteristic files to integrate into the color management system. Calibration and Description of Proofing Machines and Printers Color proofs, whether analog […]
Arranging the Color Sequence in Gravure Printing
In gravure printing, the printing plate has the printing portion recessed below the blank portion, with the depth of the recess varying according to the image’s gradation. Darker areas of the image have deeper recesses, while blank portions remain on the same plane. During printing, after applying ink across the entire plate, a doctor blade […]
Four Methods for Stable Surface Tension of Flexographic Printing Plates
In the process of flexographic plate making, what we need is a printing plate with stable surface tension. Only when the surface tension of the plate is stable can we establish a reliable platform for coordinating with the ink surface tension. So, how can the plate making process ensure stable surface tension for the flexographic […]
Printed Color Management System
What does a printed color management system refer to? Color management has gradually permeated throughout the entire process of printing, but for various reasons, there is still a need for a deeper understanding of what printing color management entails. This is because it is not only used for digital proofing but also for the unified […]
Reasons and Solutions for Printing Plate Blockage
During the printing production process, plate blockage often occurs in the printing mesh. Once blocked, it not only reduces print quality but also significantly affects printing efficiency. How can we address plate blockage effectively? Ink 1. Poor Ink Flow: During printing production, some operators prefer to slow down ink supply to the ink fountain, allowing […]
Distinguishing “Lines” and “DPI” in Printing
In ancient times, printing seems to have evolved from seals. Later on, people created relief plates similar to seals, applied ink to them, placed paper over them, and then brushed the back of the paper with a brush to obtain the desired print, which appeared in the form of lines or blocks of color. With […]