Introduction
In the world of Continuous Inkjet (CIJ) printing, ink composition plays a vital role in determining print quality and substrate compatibility. Among the most important distinctions is whether an ink is pigmented or dye-based.
This article outlines the technical, operational, and cost differences between pigmented and dye-based CIJ inks and helps you choose the right one based on your application needs.
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1. What Are Pigmented Inks?
Pigmented inks contain solid color particles that are suspended in the liquid solvent. These particles sit on the surface of the substrate, providing strong contrast and durability. Common pigments include titanium dioxide (for white inks), carbon black, and colored metal oxides.
Advantages:
- High opacity – excellent visibility on dark or transparent materials
- Superior UV and chemical resistance
- Long-lasting, fade-resistant marks
Challenges:
- Higher viscosity, requiring specialized printers and filters
- Frequent agitation needed to prevent sedimentation
- More demanding on printer maintenance
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2. What Are Dye-Based Inks?
Dye-based inks use soluble colorants dissolved in the solvent. They soak into porous materials and provide vibrant colors, but with less opacity and durability compared to pigmented inks.
Advantages:
- Simpler to use and maintain
- Lower cost per liter
- Fast drying on porous substrates like paper or cardboard
Limitations:
- Not suitable for dark or non-absorbent surfaces
- Can fade under UV exposure or wash off with chemicals
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3. Performance Comparison Table
| Property | Pigmented Ink | Dye-Based Ink |
|---|---|---|
| Contrast on Dark Surfaces | Excellent | Poor |
| UV Resistance | High | Low to Moderate |
| Maintenance Requirements | High (agitation, filters) | Low |
| Cost | Higher | Lower |
| Typical Substrates | Plastic, glass, metal, rubber | Paper, cardboard, wood |
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4. Choosing Based on Application
- Pigmented inks are best for:
- Wire & cable printing
- Dark bottle marking
- Extrusion and automotive parts
- Dye-based inks are ideal for:
- Packaging boxes and labels
- Carton coding in FMCG industries
- General manufacturing with porous surfaces
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5. Cheef’s CIJ Ink Portfolio
At ChinaCIJInk.com, we offer a full range of both pigmented and dye-based CIJ inks for top brands including Videojet, Domino, Linx, Hitachi, and others.
- Pigmented CIJ Inks: White, yellow, blue, red, and green for high-contrast applications
- Dye-Based CIJ Inks: Standard black, fast-dry, low-odor, ethanol-based, and food-grade options
We also offer maintenance kits and filters to support pigmented ink use and keep your printers running smoothly.
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6. Tips for Switching Between Ink Types
Switching from dye-based to pigmented ink (or vice versa) requires:
- Full system flush with compatible cleaning fluid
- Changing filters and ink reservoir
- Possibly recalibrating ink viscosity and pressure settings
Consult with our technical team to ensure safe and effective transitions.
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Conclusion
The choice between pigmented and dye-based CIJ ink comes down to your specific production requirements. For maximum durability and visibility, pigmented inks are ideal. For ease of use and cost efficiency, dye-based inks deliver excellent results on porous materials.
Explore our full product range at www.chinacijink.com or email sales@cheef.cn to discuss your application and get expert recommendations.
