The Relationship Between the Addition Amount of Wax Emulsion and Ink Viscosity

    The ink-specific wax emulsion will migrate to the ink surface during the film-forming process, disperse evenly, and form a wax protective layer, thereby improving the surface performance of the ink.

    As the addition amount of wax emulsion increases, the wax protective layer formed on the ink surface can reduce the friction coefficient, improve the smoothness of the paper, and significantly reduce the abrasion loss of the ink. When the addition amount exceeds 5%, the gaps between the spherical wax particles on the surface decrease, and further increasing the dosage has no obvious effect.

 The quality of ink viscosity control directly affects pigment transfer, plate plugging, print gloss, ink layer adhesion fastness, electrostatic repulsion, and most quality issues, significantly impacting print yield and production efficiency.

    To effectively address viscosity issues during ink printing, it is necessary to add 1%–3% wax emulsion to the ink. This can modify ink fluidity, reduce system viscosity, improve ink smoothness, wear resistance, and scratch resistance, enhance water resistance, accelerate setting, ensure complete print dots, reduce agglomeration, fiber picking, and smearing, and improve overall printing performance.

    Wax emulsion can effectively enhance the surface scratch resistance and wear resistance of printed products, provide anti-blocking properties, and impart a full, smooth feel to the film. Its uniform and fine particle size distribution also contributes to excellent ink gloss and superior hiding power.