Design Guilloché Pattern
4 hoursPlan rosette and engine-turned patterns with repeating geometry and intersecting curves.
Advanced3-6 months
Banknote Engraving Style Guide
Learn banknote engraving style from scratch with a clear step-by-step workflow, recommended tools, safety guidelines, and expert tips.
security engraversprint designers
Workflow
Cut Rosette Lines
6 hoursEngrave fine parallel lines in rosette pattern at consistent depth and spacing.
Add Latent and Micro Text
4 hoursCut micro lettering and latent images visible only at specific viewing angles.
Proof and Print Test
2 hoursInk plate and pull proof to verify line retention and pattern registration.
Tools Used
Checklist
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Planning
Preparation
Safety
Execution
Quality
Documentation
Reference Materials
Guilloché GeometryStandard
Rosette patterns use compound sine waves — index ratio determines petal count.
Line DepthFormula
Intaglio print requires 0.02–0.05 mm line depth for consistent ink transfer.
Pattern DensityTable
Security line spacing guidelines.
| Type | Spacing | Purpose |
|---|---|---|
| Fine line | 0.1 mm | Moire |
| Rosette | 0.2 mm | Ornament |
| Latent | Variable | Covert |
Indexing Discipline
Mark index zero clearly — losing count ruins multi-hour rosettes.
Graver Freshness
Micro lines dull gravers fast — hone between every 20 minutes.
Proof Early
Pull test proof at 25% completion to catch depth issues early.
Safety Notes
- Intaglio inks contain solvents — use fume hood when proofing.
- Extreme magnification causes neck strain — adjust ergonomics.