Glass Pigment Uses - How to Use Pigment for Glass in 2024?

I. Production of colored glass

Colored glass is made by applying pigments on glass surfaces. This can make glass with beautiful colors. Glass pigments are suitable for glass decoration, architectural decoration, etc.

Specific steps:

1. Prepare color pigments and dedicated glass coatings.
2. Apply glass coatings on glass surfaces via a
3. Apply pigments evenly on glass.
4. Put glass into a high-temperature furnace.
5. Wait until glass is thoroughly cooled. Then conduct grinding, polishing, etc.

Advantages: rich and beautiful colors.

Shortcoming: use of expensive materials (e.g. gold and silver) in production, resulting in high costs.

II. Coloring of translucent glass

Translucent glass is usually used in production of daily necessities, such as glass cups. People can clearly see the colors of drinks in cups. In addition, the transparency of drinks can be protected.

Specific steps:

1. Put a glass cup into a coloring mold.
2. Pour the pigment into the mold to color the cup.
3. Heat the cup in the high-temperature furnace.
4. Wait until the cup is cooled. Then polish the surface of the cup.
5. Finally, a translucent glass cup is made.

Advantages: Good translucent effect, bright color, smooth surface.

Shortcoming: High cost.

III. Membrane coloring

Membrane coatings are applied with special chemicals on glass surfaces, to achieve some special effects, such as shading and heat insulation. This method is often used in industrial fields.

Specific steps:

1. Apply a membrane coating on the glass surface.
2. Put the glass into an oven for baking.
3. Take out the glass after heat treatment.

Advantages: Good light transmission, shading, UV resistance, etc. The membrane coating is made smooth.

Shortcomings: Complex construction and high cost.

In summary, glass coloring should be flexibly conducted based on specific applications and requirements, so that glass has more values and creative applications in various fields.

1. Colorless and transparent glass pigments: They do not affect the transparency of glass. Instead, a thin oxide film is formed for sun protection and beautification of glass surfaces.
2. Colored glass pigments: They make glass surfaces with different colors, such as red, yellow, green and blue. They have beautiful decorative effects and are widely used in construction.
3. Glass pigments with gradient colors: Glass pigments with gradient colors: They make glass surfaces with deep to light colors, thus showing visual three-dimensional and transitional effects. They are mainly applied in automotive side windows, sunroom glass, etc.

4. Glass pigments for reflective mirror: They make glass surfaces with mirror effects for reflection, shading, privacy protection, etc. They are widely used in indoor furniture and commercial decoration.

Take white glass pigment as an example:

I. Main raw materials

Main ingredients of white glass pigment include silicate and iron oxide. Other raw materials may be added as needed, such as titanium dioxide, dolomite, calcium carbonate, bauxite, etc.

II. Production steps

1. Preparation of main materials

Mix silicate and iron oxide in proportion, add an appropriate amount of auxiliary material, and mix them.

2. Calcination

Calcinate the mixture at 1,000℃ to 13,00℃ for 1-2h in a high-temperature furnace, until it is completely melted into a pigment.

3. Grinding

Grind the pigment in a grinder, making the particles as fine as possible and the color more uniform.

4. Screening

Screen the ground pigment to remove too large or small impurities, thus improving the purity of the pigment.

5. Packaging

Pack the screened pigment in an airtight container, and keep it in a cool and dry place. Avoid direct sunlight and moisture.

III. Precautions

1. Mix silicate and iron oxide at an appropriate proportion. Too much or little silicate and iron oxide will affect the pigment quality.
2. Properly control the calcination temperature and time, to avoid charring or over-burning.
3. Pay attention to the particle size and uniformity during grinding, in order to ensure the uniform color.
4. Pay attention to sealing during packing. Prevent the pigment from moisture or contamination.