Fiber-grade titanium dioxide is titanium dioxide added to chemical fibers and synthetic fibers to serve as a matting agent. It makes the fiber surface non-reflective, renders the fiber opaque, and improves the fiber's dyeing performance, hand feel, and other properties. It is an essential additive for matte fibers.
1. Scope of Application: Polyester, viscose fiber, acrylic fiber, nylon, etc. Polyester 80%, Viscose fiber 7–8%, Acrylic fiber 7–8%, Nylon, etc. The remainder.
2. Production and Consumption: Global total consumption: 70,000–80,000 tons/year Mainland China consumption: 18,000–25,000 tons/year Major producers of fiber-grade titanium dioxide: - Sachtleben Chemie GmbH (Germany) - Fuji Titanium Industry Co., Ltd. (Japan) - Titanium Industry Co., Ltd. (Japan) - Kronos Worldwide, Inc. (Germany) Production distribution: - Sachtleben Chemie GmbH: 30,000–40,000 tons/year - Fuji Titanium Industry Co., Ltd.: 20,000–30,000 tons/year - Titanium Industry Co., Ltd.: 8,000–10,000 tons/year - Kronos Worldwide, Inc.: 8,000–10,000 tons/year
Remarks Features of this technology: The adoption of a new salt treatment formula and calcination process, along with innovative post-treatment techniques and treatment agent formulations, significantly enhances product quality and stability. The product exhibits excellent whiteness, high water dispersibility, and fewer coarse particles, achieving quality levels comparable to TA-300 and LWSU. The cost is relatively low, controllable at 15,000–16,000 RMB per ton (based on a production scale of 4,000 tons per year).
Investment Situation: (1) If an existing sulfuric acid process rutile-type coating titanium dioxide production line is used, the salt treatment formula and calcination process in the front section need to be adjusted accordingly. The process and equipment in the post-treatment section only require minor modifications to be used for the post-treatment of chemical fibers. The total equipment investment can be controlled within 1 million yuan.
(2) If an existing sulfuric acid process anatase coating titanium dioxide production line is used, the salt treatment formula and calcination process in the front section need to be adjusted accordingly, and equipment in the post-treatment section must be reinvested. The total equipment investment can be controlled within 8 million yuan.
(3) If there is no existing coating titanium dioxide production line, it is necessary to invest in equipment for the post-treatment section, purchasing anatase coating titanium dioxide BA01-01 as raw material for the production of fiber-grade titanium dioxide. The total equipment investment can be controlled within 8 million yuan.
Post-processing flow of chemical fiber titanium dioxide: Pulping → Grinding → Classification → Surface Treatment → Concentration → Drying → Crushing → Packaging