The effects of the pigment dispersion on ink adhesion

2020-04-24

In addition to the important effects of resins on inks, this article will introduce another important factor affecting ink adhesion-the effect of pigment dispersion. Today, we will do this article for some chemical resins, packaging material suppliers or buyers' reference.

iSuoChem pigment dispersion

As a carrier for the coloring of ink, pigments are usually small molecules of organic or inorganic substances, such as iSuoChem pearl pigment, organic pigment. All these cannot form a direct adhesion to the printing substrate and can therefore only be crushed into fine, even particles are evenly distributed in the resin in order to achieve wetting and coating of the pigment surface by the resin, whereby a stable suspension system is obtained
Good adhesion printing package

In addition to directly influencing the fineness, gloss, viscosity, stability, color capacity and hiding power of the ink itself, the degree of dispersion of the pigment also has a great influence on the adhesion of the ink. A good dispersion system not only optimizes the fineness of the pigment, it also causes the resin to coat the tiny pigment particles more intact. After the film is fixed on the surface of the plastic substrate, a uniform and dense resin film is formed, which is wrapped with pigment particles. The contact area between the resin and the plastic film surface is increased and the fastness to adhesion is improved.