How Solvent Green 7 Enhances Industrial Coloring Solutions
Introduction
Solvent Green 7, also known as Oil Green G, is a bright green, oil-soluble dye widely used in various industrial applications due to its excellent solubility in non-polar media and vibrant color stability. This synthetic dye belongs to the solvent dye family, offering strong coloring performance in plastics, waxes, oils, and fuels.
Key Properties of Solvent Green 7
Appearance: Green powder or crystals
Chemical Class: Anthraquinone-based solvent dye
Solubility: Soluble in hydrocarbons, oils, waxes, plastics
Heat Resistance: Good thermal stability in processing
Lightfastness: Moderate to good, depending on application
Applications Across Industries
| Industry | Application | Function |
|---|---|---|
| Plastics | Coloring of PVC, PS, PMMA, polyolefins | Provides bright green shade with good dispersion |
| Fuel & Lubricants | Fuel marking, oil tracing | Helps differentiate fuel types or trace leaks |
| Waxes & Polishes | Candle and shoe polish coloring | Uniform tint with strong oil compatibility |
| Inks & Coatings | Printing ink, metallic coatings | Enhances appearance with strong color payoff |
| Stationery | Marker ink and writing tools | Stable, intense green color |
Why Choose Solvent Green 7?
Strong Dyeing Power
Produces vibrant, rich green shades even at low concentrations.
Excellent Oil Solubility
Dissolves easily in non-polar mediums like paraffin, oils, and hydrocarbons.
Thermal Stability
Withstands high processing temperatures in plastic and candle manufacturing.
Consistent Shade & Dispersion
Uniform color output and good dispersion characteristics in polymer matrices.
Packaging and Storage
Packaging: Usually packed in 25 kg fiber drums or bags
Storage: Keep in a dry, cool place away from direct sunlight and moisture
Shelf Life: Stable for 2+ years under proper storage conditions
Frequently Asked Questions
Q: Is Solvent Green 7 suitable for food or cosmetic applications?
A: No. Solvent Green 7 is intended for industrial use only and is not safe for human consumption or skin contact.
Q: Can it be mixed with other dyes?
A: Yes. It blends well with other solvent dyes to create custom shades or effects.
Q: Is it stable under UV exposure?
A: It has moderate UV resistance; additional UV stabilizers may be required for outdoor use.
Conclusion
Solvent Green 7 offers an ideal green coloring solution for industrial applications requiring strong oil solubility, high tinting strength, and temperature resistance. Its compatibility with multiple substrates makes it a popular choice across plastics, fuels, waxes, and coatings industries. For manufacturers seeking reliable, vibrant, and efficient coloration, Solvent Green 7 remains a top-tier dye solution.
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