What is the relationship between the composition and performance of the ink?

   Printing ink is a paste-like colloid composed of colorants, linking materials,

fillers and other ingredients evenly mixed. As a kind of viscous fluid ink, due to

its different varieties, its performance is also different, that is, there are thick

and thin points, differences in viscous strength, fast drying and slow drying,

and so on. Therefore, it is of great significance to correctly understand and

understand the role of ink components in ink for accurately adjusting ink

characteristics, satisfying the creativity of various printing conditions,

and improving product printing quality.

  1. What kind of connection can the colorant play in the ink? Colorants

include both pigments and dyes. The colored materials used in printing inks are

usually pigments, and some dyes are also useful, which are colored substances

with extremely fine particles. Pigments are generally insoluble in water

and in the linking material, and most of them are in a suspended state in

the solution, while dyes are generally soluble in the linking material.

Pigments have a great influence on the performance of inks. The relative density,

transparency, heat resistance, light resistance and resistance to chemicals of

inks are all related to pigments.

  2. The linking material is a fluid with a certain viscosity and viscosity,

and its functions are various. As a pigment carrier, it can mix and link solid particles

such as powdered pigments, and make the cohesive pigments finally adhere to

the printed matter. While affecting and determining the fixing speed, drying speed

and drying type of the ink, the linking material can also give the ink a certain

physical properties such as gloss, friction resistance, yellowing resistance and

impact resistance, and to a large extent It determines the viscosity, viscosity,

yield value and fluidity of the ink, so high-quality ink comes from high-quality binders.

  3. The filler is a white solid substance that can be evenly and well dispersed in

the linking material, and is in the form of a fine powder. When the fillers are mixed

and ground in the binder and become slurry, some are transparent and

some are opaque. In the ink, the filler can adjust the consistency, viscosity,

fluidity and yield value of the ink on the one hand, and can adjust the ink concentration

on the other hand. That is to say, when the ink concentration is large and the hue is

deep In some cases, the dilution effect can be achieved after adding fillers.