Paper Grade refers to chemicals and additives specifically formulated for use in the pulp and paper manufacturing industry. These substances are designed to enhance paper quality, optimize production processes, and improve functional properties such as strength, brightness, smoothness, and resistance to water or aging. Common paper-grade chemicals include bleaching agents (like hydrogen peroxide or chlorine dioxide), fillers (such as calcium carbonate or kaolin), sizing agents (e.g., rosin or alkyl ketene dimer), and retention aids (like polyacrylamides) They may contain tailored additives to control pH, reduce foaming, or enhance dye adhesion. Environmental and safety regulations also apply, particularly for chemicals used in wastewater treatment or recycling processes. This grade is essential for producing everything from newsprint and packaging materials to high-quality specialty papers.

Calcium Carbonate (Uncoated)

Calcium Carbonate (uncoated) is a naturally occurring mineral compound composed primarily of calcium, carbon, and oxygen with the chemical formula CaCO₃. It appears as a fine white powder or granules, widely used as a filler, pigment, and functional additive across various industries. The uncoated form means the calcium carbonate particles are not surface-treated, retaining their natural properties. It is valued for its high brightness, whiteness, and excellent compressibility. Uncoated calcium carbonate is used to enhance opacity, improve processing, and reduce costs in plastics, paints, coatings, adhesives, rubber, paper, and construction materials.

Calcium Carbonate Heavy

Calcium Carbonate Heavy is a high-density, finely ground, natural mineral primarily composed of calcium carbonate (CaCO₃). Known for its higher bulk density compared to regular grades, this filler is widely used in applications requiring enhanced weight, opacity, and strength. It is commonly employed as a functional filler and extender in industries such as plastics, paints, coatings, adhesives, rubber, paper, and construction materials. Its inert nature, whiteness, and particle size distribution make it suitable for improving mechanical properties and surface finish, while also offering cost efficiency by replacing more expensive raw materials.

Calcium Carbonate Light

Calcium Carbonate Light is a finely ground, low bulk density natural mineral composed primarily of calcium carbonate (CaCO₃). Compared to standard grades, it has a lower density and larger particle size distribution, making it suitable for applications where light weight and high brightness are important. This form is extensively used as a filler and extender in industries such as plastics, paints, rubber, paper, adhesives, and construction materials to improve opacity, brightness, and texture, while maintaining low weight and cost efficiency. Its chemical inertness and whiteness provide functional and aesthetic advantages across formulations.

Kaolin

Kaolin is a naturally occurring, fine white clay mineral primarily composed of kaolinite. It features a soft, powdery texture and excellent absorbency. Kaolin is widely used across ceramics, paper, rubber, paint, and cosmetics industries due to its chemical inertness, whiteness, and plasticity. It acts as a filler, coating agent, and extender to enhance product quality and performance.