From premium magazine stock to everyday office paper, mineral fillers define the brightness, opacity, and printability that set paper quality apart.
The paper industry is one of the largest consumers of mineral fillers worldwide. Kaolin and PCC together account for 20–30% of paper weight in coated grades, providing the brightness, opacity, and smoothness that define paper quality.
These minerals deliver exceptional printability and surface finish — from premium magazine stock and art paper to everyday office paper. As the industry evolves, mineral technology continues to enable thinner, brighter, and more sustainable paper products.
A.N. Enterprises supplies precision-graded minerals engineered for every stage of the papermaking process, from pulping through coating.
Purpose-engineered mineral grades that deliver brightness, opacity, and printability across every paper application.
The traditional paper coating pigment — used for over 200 years. Plate-like particles create an exceptionally smooth surface for high-quality printing, delivering brightness, gloss, and superior ink receptivity in coated papers.
The essential pitch control agent — absorbs and neutralizes sticky wood pitch and resin during pulping, preventing costly deposits on paper machine components. Also used as a filler in specialty papers and as an anti-blocking agent between sheets.
The modern paper filler of choice — replaced kaolin filler in many grades since the alkaline papermaking transition. Scalenohedral crystal shape maximizes light scattering, delivering exceptional brightness and opacity while allowing thinner paper at the same opacity.
Specialty paper reinforcement — acicular (needle-like) particles improve tear strength and fold endurance in papers requiring enhanced mechanical properties. Provides dimensional stability for demanding specialty applications.
From coating pigments to pitch control, our minerals serve critical functions across the entire papermaking process.
Kaolin coating is the foundation of premium print media. Applied at 8–15 g/m² per side, fine and delaminated kaolin grades create the ultra-smooth, glossy surface essential for magazines, catalogs, and art paper. The plate-like particle geometry delivers outstanding ink receptivity and print definition.
PCC has become the filler of choice for uncoated grades including office paper and book paper. At 15–25% loading, its scalenohedral crystal structure maximizes light scattering, delivering high brightness and opacity. The bulk increase allows manufacturers to produce thinner sheets without sacrificing optical performance.
Talc plays a critical role during pulping as a pitch control agent. It absorbs and deactivates sticky wood pitch and resin that would otherwise deposit on paper machine wires, felts, and rolls — causing costly downtime. Talc is also used in deinking processes for recycled paper production.
White top liner for packaging board relies on a combination of kaolin and PCC to achieve the bright, printable surface required for branded packaging. These minerals deliver the whiteness and smoothness needed for high-quality graphics while maintaining the board's structural integrity.
For papers requiring enhanced mechanical properties, wollastonite's acicular particles reinforce the fiber network, improving tear strength and fold endurance. These specialty grades serve demanding applications in technical documentation, security papers, and archival materials.
Rigorous testing protocols ensure every batch delivers consistent performance on the paper machine and in the final sheet.
Every batch is measured for ISO brightness to ensure consistent optical performance. Kaolin achieves >85% and PCC exceeds 95%, meeting the demanding requirements of premium paper grades.
Precise particle size distribution is critical for coating quality and filler performance. Laser diffraction analysis ensures every batch meets the tight specifications required for uniform coating and optimal light scattering.
Low abrasion values are essential to protect expensive paper machine wires and coating blades. Einlehner abrasion testing verifies that our minerals minimize equipment wear during high-speed production.
Viscosity and flow behavior of coating slurries are tested to ensure optimal runnability on coating machines. Proper rheology prevents defects like streaking, orange peel, and uneven coverage.
Handsheets are formed and tested to evaluate filler distribution, opacity development, and surface quality before production-scale delivery, ensuring predictable on-machine performance.
Statistical process control across all critical parameters guarantees that every delivery performs identically on your paper machine, eliminating costly grade changes and machine adjustments.
Let our team help you select the optimal mineral grades and specifications for your papermaking process.
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