SEMITI INK-1
Ink-grade rutile engineered for fast bead-mill dispersion and screen anti-blinding.
SEMITI INK-1 is a chloride-process rutile specifically engineered for printing ink applications — offset, flexo, gravure, screen, and UV inks. It is the direct counterpart to Chemours Ti-Pure R-931, the global reference grade for white printing inks.
Printing ink TiO2 has a unique performance profile. Compared with paint TiO2, inks demand: (1) faster bead-mill dispersion (typical milling time 30–60 min vs paint's 60–120 min) to reach Hegman 7+, (2) anti-screen-blinding behavior at high TiO2 loading on flexo and gravure presses, (3) consistent flow on offset press rollers without dot-gain issues, and (4) clean color in 4-color process where TiO2 acts as the opacifier in PMS opaque whites.
The ink-tuned surface treatment of SEMITI INK-1 provides all four. The dispersant pre-coating enables fast wet-out in solventborne and waterborne ink vehicles. The narrow particle size distribution prevents 220-mesh and finer flexo anilox rolls from blinding. And the tight color spec (Δb* < 0.5) means batch-to-batch color reproduction on print runs.
Why customers pick SEMITI INK-1
- 01Fast bead-mill dispersion — Hegman 7+ in 30–45 min vs 60+ for universal grades
- 02Anti-screen-blinding — runs cleanly on 220-mesh+ flexo anilox without buildup
- 03Compatible with offset, flexo, gravure, screen, UV ink vehicles
- 04Tight color spec (Δb* < 0.5) — batch-to-batch color consistency on production print runs
Typical specifications
Batch-specific CoA accompanies every shipment.
| TiO2 content | ≥ 93.0% | |
| Rutile content | ≥ 99.0% | |
| Color (CIE L*) | ≥ 98.0 | |
| Color (b*) | ≤ 1.8 | |
| Particle size D50 | 0.25 μm ± 0.02 | |
| Bead-mill time to Hegman 7 | 30–45 min (standard solvent vehicle) | |
| Surface treatment | Alumina + ink dispersant |
Typical dosage
Starting points for formulator trials — final loadings should be optimized in-house.
vs international reference grades
Comparisons against the international grades most commonly cross-referenced by formulators.
Direct functional equivalent. Validated in 5+ commercial ink manufacturers; matched on dispersion time and final ink color/opacity.
SEMITI 902 works for ink but takes 50% longer to disperse. For high-volume ink production, SEMITI INK-1 pays back the price premium in mill time savings.
Packaging & shipping
25 kg paper bag with PE liner; 500 / 1000 / 1250 kg FIBC. Standard pallet 1 t. 20' container 18–20 t. No special handling required for ocean transport.
Common questions
Is SEMITI INK-1 food-contact compliant for food packaging inks?+
Can I use SEMITI INK-1 in waterborne ink?+
Request CoA, sample, or quote for SEMITI INK-1
We typically respond within 24 hours UTC+8. Free samples for technical evaluation; FOB / CIF / DDP terms to most ports worldwide.