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Demei focuses on the research, development, and production of inorganic iron oxide pigments. Our pigments cover iron oxide red, yellow, black, brown, green, orange, blue, etc.
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Product Details
Comprehensive information about our iron oxide pigments including specifications, applications, advantages, and more
Fine Grade Black Iron Oxide
High-performance inorganic pigment with excellent color stability, weather resistance, and broad application range.
Micro-Precision for Professional Results
At Deqing Demi Pigment Technology Co., Ltd., we specialize in the "Smallest Details." We recognize that for premium coatings and inks, even a few microns can make a difference. Our fine-grade black series is produced using advanced pearl-milling technology to ensure a silky texture. We provide the "Micro-Fineness" that enables our clients to produce high-end products with superior color saturation and a flawless surface finish.
Fine Grade Black Usage Areas
- High-Gloss Paints: Smooth, deep black for furniture and appliance finishes.
- Printing Inks: High-opacity, fine-grind black for flexo and gravure printing.
- Precision Molding: Streak-free coloring for electronics and medical devices.
- Toner Feedstock: Base material for high-resolution laser printer toners.
Fine Grade Technical Specs
| Metric | Value | Method |
| Average Particle Size (D50) | 0.2 - 0.4 μm | Laser Diffraction |
| Hegman Fineness | Min 7.5 | ISO 1524 |
| Iron Content (Fe3O4) | Min 95% | ISO 1248 |
| Oil Absorption | 25 - 35 g/100g | ISO 787-5 |
| Tinting Strength | 105% - 110% | Vs. Std Black |
Performance Characteristics
- Mirror-Like Gloss: Minimizes light scattering for a deep, reflective black.
- Exceptional Dispersion: Rapidly develops full color even under low-shear mixing.
- Deep Undertone: Provides a clean, bluish-black without "muddy" tints.
- High Purity: Low grit content protects delicate applicator heads and molds.
Q: Does a smaller particle size mean more dust?
A: While finer, we use a specialized "De-aeration" process and low-dust packaging to keep your workspace clean.
Q: Is this suitable for aqueous systems?
A: Yes, the high surface area allows for excellent wetting in water-borne resins when used with the correct dispersant.
Technical Lab Services
We offer "Surface Area Analysis (BET)," providing you with the exact physical profile needed for advanced toner or ink formulations.
Bespoke Micronization: We can mill the black oxide to your specific D90 target for ultra-thin coating applications.
The Science of Surface Charge (Zeta Potential)
In fine-grade black, the science of "Stability" moves to the molecular level. Smaller particles have higher surface energy and tend to clump. We manage this through "Zeta Potential Optimization." By controlling the ionic environment during milling, we ensure that each particle carries a similar surface charge, creating a "Mutual Repulsion" that prevents re-agglomeration. This scientific "Dispersion Shield" is what keeps our fine black free-flowing in your resin and ensures a perfectly smooth, streak-free finish on your product.
About Demei
Demei Chemical Co., Ltd. specializes in the research, development, and production of inorganic iron oxide pigments. With over a decade of experience in the field, we have established ourselves as a leading manufacturer with advanced production facilities and a dedicated R&D team.
We are China Custom Fine Grade Black Iron Oxide Manufacturers and Wholesale Fine Grade Black Iron Oxide Suppliers, Factory. Our comprehensive pigment range includes iron oxide red, yellow, black, brown, green, orange, and blue. We produce high-performance and high-stability composite iron oxide pigments with three specialized series: Standard, Micronized, and Low Heavy Metal Content levels.
Our products are exported to more than 30 countries and regions worldwide, serving diverse industries including construction, coatings, plastics, rubber, ceramics, and paper. We pride ourselves on consistent quality, excellent color properties, and reliable technical support for our global clients.
R&D Excellence
Continuous investment in research and development ensures technological leadership. Our R&D center focuses on innovative pigment formulations and application technologies.
Advanced Manufacturing
State-of-the-art production facilities with automated control systems ensure consistent quality and large-scale production capacity of over 50,000 tons annually.
Quality Assurance
Strict quality control at every production stage. Certified to ISO 9001:2015, our pigments meet international standards for color consistency and performance.
Global Reach
Extensive distribution network across Asia, Europe, Americas, and Africa. We provide customized solutions and technical support for diverse market requirements.
Core Products
We provide a full range of high-quality inorganic iron oxide pigments, widely used in building materials, coatings, plastics, rubber, ceramics and other industries.
Product Series
We offer three specialized series of iron oxide pigments to meet diverse industry requirements and application scenarios
Standard Series
Conventional particle size iron oxide pigments suitable for most industrial applications. Excellent dispersibility and tinting strength with high cost-performance ratio.
Micronized Series
Ultra-fine particle size with uniform distribution. Ideal for high-end coatings, plastics, and applications requiring superior fineness and smooth finish.
Low Heavy Metal Series
Strictly controlled heavy metal content meeting international environmental standards. Suitable for toys, food packaging, and safety-sensitive applications.
Social Responsibility
Demei not only contributes to production and operation, but also faithfully fulfills its social responsibilities, protects the ecological environment, strengthens safe production, and cares for the health of employees.
Environmental Protection
Implementing green production processes, reducing waste emissions, and actively promoting circular economy principles.
Safe Production
Comprehensive safety management system ensuring controlled and secure operations throughout the production process.
Employee Health
Providing healthy working environments, regular health check-ups, and focusing on physical and mental well-being of our employees.
Community Contribution
Active participation in community development, supporting educational initiatives, and giving back to society.
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Phone
86-572-8035379
86-13666526593 -
Hours
Monday-Friday: 9am to 6pm
Saturday, Sunday: Closed -
Address
20th Floor, Mibei Chuanggongchang No. 650 Yunxiu South Road, Deqing County, Huzhou City, Zhejiang Province, China(Sales Office)
