Printing Knowledge

In the production of tobacco packaging printing, curling of paper can lead to serious problems during post-processing and use. For instance, curled sheets can increase positioning errors during downstream processes such as cutting, hot stamping, and …

It is well known that materials used in the packaging and printing industry, such as paper, plastic, ink, adhesives, and guide rollers (some of which are anodized to form alumina), are insulators. The processes of printing, laminating, rewinding, and…

Determining the Line Screen Based on Paper Performance
Paper is the main substrate for printing, and the quality of paper directly affects the quality of printed materials. There are significant differences in the glossiness, surface strength, whiten…

How should the black color be treated in the design file before printing?
- When should overprinting be applied?
- When should you use C0 M0 Y0 K100?
- If the background is a large area of black, how should that be handled?
- Are there any difference…

Why Does Powder Appear on the Ink Rollers, Leading to Poor Ink Transfer?
In the offset printing process, water and ink are two essential materials involved in ink transfer. Water refers to the fountain solution, while ink is the offset printing ink. …

In printing, all text in CD files must be converted to outlines to ensure print quality.
Some images come from Photoshop and contain embedded text in a combination of text and graphics. If this text isn’t converted to outlines, can it still be print…

To ensure the strength and good adhesion of corrugated cardboard, adjustments should be made according to the configuration of the corrugated cardboard production line.
  1. The ideal moisture content of the corrugated base paper entering the single…

Process Characteristics
Metallic etching imitates a frosted effect using textured inks on gold and silver paper, where the texture's coarseness and feel depend on the ink used, allowing limited adjustments during operation. The fabric texture techni…

In color printing, the typical approach is to use four colors: yellow, magenta, cyan, and black, which are printed in a specific sequence. Theoretically, there are twenty-four different printing color sequences possible with these four colors, and an…

Lithographic printing is based on the principle that oil and water do not mix. The image areas on the plate are oleophilic (ink-attracting) and hydrophobic (water-repellent), while the non-image areas must first absorb water to become hydrophilic and…

Packaging Inspection for Paper
Currently, flat paper packaging primarily comes in two basic forms: wood clipboard packaging and wooden box packaging. Qualified flat paper usually has more than two layers of wrapping paper on the outside, further rein…

Someone asked online: "Why does the ink layer not appear bright enough when silver ink is overprinted with other colors on black paper?" Here are my thoughts and insights on this issue for reference.
The so-called "black paper" is a type of speci…

In the WorldSkills competition for the Printing and Media Technology category, the "Digital Printing Color Matching" contest has emerged as one of the challenging aspects affecting the scores of participants in recent years. As a guiding teacher fo…

3D printing, also known as stereoscopic printing, typically refers to stereolithography printing. It employs a principle that simulates the spatial difference perceived by human eyes, recording pixels of different angles and depths on photosensitive …

Screen printing refers to the use of a mesh screen as a printing plate, which is made into a screen printing plate with images through photosensitive plate making methods. Screen printing consists of five main elements: the screen printing plate, squ…

Offset printing, an indirect printing method, is named after early lithography, which initially used stone plates. In early lithography, stone blocks were ground flat and used as plates. Later, this method evolved to use metal plates made of zinc or …

In an effort to help eliminate the "Paper Weight" confusion problem,
we have compiled the comprehensive table listed below.
Now you can compare various types of paper and their "Equivalent Weights."
Definitions:
Basis Weight
The basis weight of a…

A "proof" is a preview of your press-ready file, allowing you to examine and confirm layout, text and content before your order goes to press.

We rely on your thorough inspection of the proof to detect and correct errors, the review of this proof …

Bleed is the printing industry term  that refers to printing that goes beyond the edge of the sheet before trimming.. What actually happens is that the picture or other graphic extends 1/8" (.125") beyond the edge of the page and that excess image…

When ink is applied to a raised surface and paper is pressed against the inked surface, the ink is transferred to paper, Figure 1-18. Relief and letterpress are terms that describe printing methods that use this principle. The rubber stamp is device …