Calcium Sulfate Whiskers for Papermaking – High-Performance Strengthening and Toughening Additive
Technical Information on the Application of Calcium Sulfate Whiskers in the Paper Industry
Calcium sulfate whiskers are fine short fibers with excellent chemical stability, outstanding heat resistance, high whiteness, high adhesion rate, good affinity, and easy chain attachment. When used with additives present in a colloidal state, they exhibit strong adsorption capacity and can bond effectively with plant fibers (wood pulp, straw pulp), enabling the production of high-performance paper. Replacing part of the wood or straw pulp with calcium sulfate whiskers offers several benefits:
First, it reduces consumption of natural plant fibers and minimizes wastewater discharge during the pulping process.
Second, it significantly improves paper properties such as whiteness, strength, air permeability, toughness, and printability (reducing linting and dusting).
Third, it lessens the negative impacts commonly associated with traditional fillers like talc, titanium dioxide, calcium carbonate, and kaolin on paper strength, bulk, and viscosity.
Therefore, the application of calcium sulfate whiskers in the paper industry not only delivers substantial overall benefits but also represents an emerging trend. Moreover, among all whisker products, calcium sulfate whiskers stand out as a new type of whisker material with the most competitive price and excellent quality.
| Company Name | Zhengzhou Bokaili Ecological Engineering Co., Ltd. | Country/Region | China |
| Business Type | Retailer | Company Size | 40 |
| Established | June 26, 2007 | ||
| Address | North Section of Jingcheng Road, Xingyang, Zhengzhou, Henan | ||
| Main Products | Calcium sulfate whisker | ||
Zhengzhou Bokaili Ecological Engineering Co., Ltd. was established in 2007. In active response to national policies, the company spent two years building a new high-tech, environmentally friendly inorganic whisker research and development base in Zhengzhou, Henan Province, completed in 2009. Collaborating with renowned domestic research institutes, the company independently invested in launching its brand—Bokaili Whisker. After several years of dedicated development, "Bokaili Whisker" has been widely applied in industries such as friction, sealing, plastics, papermaking, adhesives, coatings, insulation materials, and rubber, achieving outstanding results. The product has now passed CTI certification and ISO9001:2008 certification. The company operates four R&D rooms and multiple laboratories, ensuring continuous product improvement and excellence. To guarantee quality, all products must pass strict inspections before leaving the factory. Having completed its second-phase expansion, the company now has an annual production capacity of 60,000 tons, fully meeting customer demand. With strong financial backing, highly educated R&D personnel, and efficient sales services, Zhengzhou Bokaili Ecological Engineering Co., Ltd. has established an excellent corporate reputation and earned widespread customer trust and praise. The visionary leadership of the management team, the dedicated efforts of all employees, and strong support from various industries have contributed to remarkable achievements in relevant fields. While expanding domestic operations, the company is also actively developing international business, treating market globalization as a core strategic goal. To this end, we continuously research and explore new application areas and introduce innovative whisker products. We warmly welcome customers worldwide to visit our facility.
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