Chemical elemental impurities in talc are mainly transition metal ions such as Fe, Mn, and Ti, which are mostly introduced by wall rock weathering, hydrothermal activities, and other processes, and exist in the form of isomorphism or interstitial occupancy. Although their content is low (0.01%–1%), they can alter electron transitions in crystals, selectively absorb visible light, significantly affect the color of talc, and different elements exhibit distinct coloration mechanisms.

Liaoning Xinda Talc is set to launch two linked exhibitions, making a high-profile appearance at two major industry events in Mingguang, Anhui and Guangzhou. With professional expertise, we empower the coating industry, explore business opportunities and promote development together with industry peers!

Peaceful Qingming · Craftsmanship walks with you

First Part: We previously analyzed four potential mechanisms for energy conservation in talc pulping. This article leverages comprehensive experimental research and industrial pilot-scale trials conducted by Xinda Talc Group to validate these mechanisms through real-world data, while assessing their industrial application value, challenges, and future development directions.

The energy consumption of papermaking pulping accounts for 30% to 40% of the total energy consumption in the industry. High energy consumption has always been the core pain point for cost reduction and efficiency improvement in this sector! As a commonly used filler in papermaking, talc powder not only improves the performance of paper but also can reduce the energy consumption of pulping through its unique properties? Based on the research and practice of Xinda Talc Group, this article will fully explain the underlying logic of energy-saving in talc powder pulping. 

On this traditional auspicious day, Xin Da Talc Stone wishes you: May you be filled with joy wherever you look, may everything go smoothly, may your career thrive day by day, and may your life shine brightly step by step!

Spring arrives in Shanghai, and wisdom gathers in rubber and plastic! April 21st - April 24th ，CHINAPLAS 2026 China International Exhibition of Plastics and Rubber Industry ，It will be grandly launched at the Shanghai National Exhibition Center.

 Calcite, as an important non-metallic mineral resource, is widely used in various fields such as plastics, coatings, papermaking, and ceramics. The scientific classification of the mineral types is the basis for the evaluation, rational development, and efficient utilization of calcite resources. 

Kaolin powder, as a commonly used functional filler in coatings, plays a significant role in enhancing the mechanical properties of the paint film, regulating rheology, and reducing costs. However, its poor dispersion stability and large particle size in the coating system directly affect the storage stability, construction performance, and final paint film quality of the coating. This paper deeply analyzes the causes of the dispersion problems of kaolin powder, and systematically elaborates on the complete solution process from powder pretreatment, dispersion agent selection, dispersion process optimization to quality monitoring.