Chemical industry

The Application of Sand Mills in the Coatings and Ink Industry: A Precision Engine for Color and Gloss

From the pure colors of home walls to the cool metallic paint on automotive surfaces, from the vibrant patterns on food packaging to the precise circuitry on PCBs, the quality of coatings and inks depends on meticulous nano grinding of pigment particles. Products from a leading sand mill manufacturer are core equipment for the modern coatings and inks industry to achieve product upgrades and meet high-end demands.

Core Applications:

Efficient Pigment Dispersion and Color Development: Primary pigment particles typically exist as aggregates. The sand mill's task is to break these aggregates down to their original particle size (typically micron or submicron) and stably coat them with resins and additives using advanced nano grinding. This process directly determines color saturation, tinting strength, gloss, and transparency. The more thorough the grinding, the more vivid the color and the higher the gloss.

Reducing Particle Fineness Improves Product Performance: For high-end automotive paints, industrial anti-corrosion paints, UV inks, and other applications, extremely fine particle size means a smoother paint film surface, stronger adhesion, and increased abrasion and weather resistance. Wholesale horizontal sand mill equipment can consistently grind products to Hegman grade 7 or higher, meeting the most demanding application requirements.

The preparation of special-effect coatings, such as aluminum powder in metallic luster paints and mica titanium pearlescent powder in pearlescent paints, requires gentle dispersion and orientation without disrupting their flake structure. Specially designed sand mills (such as low-speed, high-energy-efficiency models like the dual-power nano sand mill) are ideal for this task.

Technical Requirements:

The paint and ink industry requires sand mills with high flexibility, easy cleaning (for easy color changes), excellent wear resistance, adaptability to materials of varying viscosities, and the ability to handle shear-sensitive materials (such as aluminum powder). Double-face mechanical seal technology ensures leak-free and contamination-free production of high-value-added products. In addition, incorporating a dispersion tank enhances the initial mixing stage, while options like the laboratory sand mill support small-scale testing and the pin disc mill offers specialized high-shear capabilities for certain formulations.