Four color printing
The so-called four colors refer to four types of inks: cyan (C), magenta (M), yellow (Y), and black (K). All colors can be mixed through these four inks to achieve color images and texts. 2. The most common and common type of printing, where different substrates produce different effects.
Spot color printing
1. Spot color printing refers to the use of a special ink to print a particular color, which is brighter than a mixture of four colors. The commonly used ones are specialized gold and specialized silver.
2. There are many spot colors, and referring to the Pantone color chart, spot colors cannot achieve gradient printing. If necessary, four-color printing can be added.
Overlight glue
1. After printing, a transparent plastic film is applied to the surface of the printed material through hot pressing to protect and increase its luster. The surface is bright, as shown in the following figure.
2. The most basic process for surface treatment of paper boxes. Similarly, there is also gloss, but glue can enhance the hardness and tensile properties of paper.
