What is the entire process of traditional lithographic printing?

The characteristics of letterpress printing Due to the letterpress printing layout of the printing pattern part of the printing pattern and non-printing part of a significant difference in height, the printing pressure by the obvious state of pressure, therefore, the edge of the pressure that is generated by the center of the heavier, so the edge of the ink thicker phenomenon of the reveal, so the finished product in the unit area can be seen on the edge of the pressure situation, this state is called the outer edge of the band (Marginal Zone). This state is called Marginal Zone. Letterpress printing tone thick, is the printing of the three major version of the second place, the ink expressive power of about 70% -80%.

Characteristics of lithographic printing

Lithographic prints are softer than letterpress prints, and the composition of the layout is based on the principle that water and oil do not mix with each other. Therefore, in the printing work of the layout of the printed part of the interference of the water glue, and make the printed part of the line of the edge of the serious damage, so that the unit area of the line of the edge of the ink concentration of the ink is reduced, and present the phenomenon of untidy. Of course, the more into the center of the line, the more dense, this kind of performance phenomenon from the edge of the light to the center of the thick, that is, the basic characteristics of lithographic prints. But the average tone due to hydrogel and indirect printing, the tone of the average reduction, is the printing of the three major version of the color concentration of the lightest, the ink expressive power of about 60-70%, in other words, lithographic printing is more soft soft tone phenomenon.

Gravure printing features

Gravure printing is the printing of the three plates in the tone of the strongest performance, about 80-90% concentration. Because the intaglio printing layout pattern part is recessed under the layout, in the printing process need to go through the ink, wipe the ink, and then printing, when the printing needs to be a strong pressure will be recessed in the pattern ink pull out, so in the edge of the line that is to produce the mechanics of the role of the tension, and constitute the edge of the hair, of course, will also produce the outer edge of the band (Marginal Zone) phenomenon, this is the most important point of view of identifying the intaglio printing This is the most important point of view in identifying gravure printing. However, the average tone of intaglio printing is still extremely thick, so the printed part of the print has a three-dimensional thickness of the feeling.

Characteristics of perforated printing

Perforated printing has a cloth pattern on the surface of the printed matter because the ink must fall through the holes in the mesh. Most of the printing is done on silk, so it produces a silk fabric pattern, while others, such as copper mesh or plastic mesh, produce the same phenomenon. At the same time, because the ink is through the mesh and reach the surface of the paper for the sake of the printing ink is very thick, with the naked eye can see the thickness. Printing ink is not shiny is also one of its characteristics.