Pigments Powder for Ceramics and Glazes

Global Provider of Ceramic Color Solutions

Deqing Demi Pigment Technology Co., Ltd. is a specialist in high-temperature stable pigments for the ceramic and porcelain industries. Our powders are manufactured through solid-state calcination at extreme temperatures, ensuring that the color is "locked" into the crystal lattice. This results in a pigment that is chemically inert and thermally indestructible during the firing process. We support ceramic manufacturers in achieving deep, rich tones and delicate pastels for modern architectural and household ceramic products.

Ceramic Application Sectors

• Ceramic Tiles: Body stains and surface glazes for floor and wall tiles.
• Sanitaryware: Uniform coloring for toilets, basins, and bathroom fixtures.
• Tableware: Food-safe pigments for porcelain and stoneware plates and cups.
• Enamels: Colorants for porcelain enamel coatings on steel and cast iron.

Ceramic Pigment Technical Specs

Functional Characteristics for Kiln Firing

• Extreme Heat Resistance: No color change or decomposition at temperatures over 1000∘C.
• Chemical Inertness: Does not leach or react with lead-free or traditional frits.
• Vibrant Tones: Provides high-chroma colors like cobalt blue, chrome green, and iron reds.
• Uniform Dispersion: Easily mixed into slip or glaze suspensions without clumping.

• Q: Can these pigments be used for "underglaze" painting?

  A: Yes, our fine-particle pigments are ideal for underglaze application, providing sharp lines that do not "bleed" during firing.

• Q: Are they safe for dinnerware?

  A: Yes, our pigments are encapsulated and insoluble, passing strict leach testing for lead and cadmium release.

Glaze Matching and Firing Tests

We offer custom firing tests using the client's specific glaze formula to ensure color accuracy under their specific kiln atmosphere (oxidizing vs. reducing).

Fine Micronization: We provide ultra-fine powders for digital ceramic printing (inkjet), allowing for high-resolution tile decoration with industrial reliability.

The Science of Crystalline Color

In ceramics, color science is the study of "Lattice Stability." We use X-ray Diffraction (XRD) to ensure the pigment has reached a fully stable spinel or rutile structure during manufacturing. We monitor the "Color Development" as a function of temperature, providing data on the Delta E at different firing peaks. This ensures that a tile manufacturer can maintain a consistent color palette even if there are slight fluctuations in their kiln temperature or cycle time.