How to improve the color rendering effect of printed matter through ink performance?

  The specific gravity of the ink and the color effect of the printed matter. The specific

gravity of the ink is a comprehensive expression of the specific gravity of the main

components of the ink pigment, filler and binder. Generally speaking, when matching

two-color inks with different specific gravity, the amount of ink with larger specific

gravity is larger, and the amount of ink with smaller specific gravity is smaller. In addition,

color printing inks mixed with several inks with different specific gravity are prone to

stratification due to deposition, resulting in color variation or uneven color rendering

during printing. The ink is floating on the top of the sake. For example, when mixing

green ink with lead chrome yellow ink and peacock blue, after a long time, the ink with

small specific gravity will float up, while the ink with heavy specific gravity will sink,

resulting in "floating color". Therefore, before using the prepared ink, it should be

stirred evenly and then poured into the ink fountain.

  The concentration of the ink and the color rendering effect of the printed matter

The concentration of the ink, that is, the tinting strength of the ink. It reflects

the degree of dispersion of the ink and the degree of pigment content in the ink.

The concentration of the ink is affected by factors such as pigments, linking materials,

fillers and additives. Generally speaking, the higher the degree of pigment dispersion,

the higher the ink concentration; the higher the pigment content in the ink,

the greater the ink concentration.

  As the ink concentration increases, the consistency of the ink gradually increases,

so the concentration of the ink determines the hue of the ink. If the ink concentration

is high, the printing hue will be darker, the amount of ink consumed in printing is

relatively small, and the ink color quality is also better.