4 月 21st
2025
Technical Literature

Green (Inclusion Pigment): A High-Temperature Stable Ceramic Colorant

Introduction to Green Inclusion Pigment

Green (Inclusion Pigment) is a high-performance ceramic pigment designed to deliver brilliant, durable green coloration in glazes and enamel coatings. It is synthesized by encapsulating coloring oxides such as chromium and cobalt within a stable crystal matrix like zircon, forming a non-reactive pigment ideal for high-temperature ceramic applications. This encapsulation technology prevents unwanted reactions during firing and ensures vibrant color retention.

Chemical Composition and Structure

Green inclusion pigments are produced by incorporating chromium oxide (Cr₂O₃) and cobalt oxide (CoO) into a zirconium silicate (ZrSiO₄) structure. These ions are physically trapped within the crystal lattice, preventing interaction with surrounding glazes or firing environments. This unique inclusion structure provides excellent thermal stability and chemical resistance.

  • Chemical Components: ZrSiO₄ + Cr₂O₃ + CoO
  • Appearance: Fine green powder
  • Crystalline Type: Zircon-type inclusion
  • Particle Size: Micron-scale
  • Firing Stability: Stable up to 1250°C
  • Acid/Alkali Resistance: Excellent
  • Lightfastness: Outstanding, non-fading under UV or thermal stress

Applications of Green Inclusion Pigment

Green inclusion pigments are valued for their brightness, stability, and compatibility with various glaze formulations. They are widely used in:

  • Porcelain Tiles and Ceramic Wall Tiles: Ensure color consistency and resistance to firing conditions.
  • Sanitary Ware and Dinnerware: Provide decorative, non-toxic coloration for everyday ceramics.
  • Glass Enamels: Enhance decorative and functional glass products with durable green tones.
  • Architectural Ceramics and Mosaic Art: Widely used by ceramic artists and designers for vibrant, custom finishes.

Advantages of Green Inclusion Pigment

  • High Firing Stability: Maintains green coloration under extreme kiln temperatures.
  • Non-Reactive Encapsulation: Color remains unaffected by surrounding glaze chemistry.
  • Environmentally Friendly: Free of heavy metals like lead or cadmium.
  • Strong Tinting Strength: Requires low dosage for vivid coloration.
  • Consistent Quality: Batch-to-batch color consistency for industrial applications.

Conclusion

Green (Inclusion Pigment) offers a specialized solution for ceramic and glass industries seeking environmentally safe, thermally stable, and visually striking green pigments. Its encapsulated structure ensures consistent performance across a wide range of firing environments, making it an indispensable pigment for modern ceramics and decorative arts.

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