Key Tips for Printing Small Text on Letterpress and Flexo Machines
In label and packaging printing, small text is often used for product information, ingredients, instructions, or legal notes. However, printing small text clearly can be challenging—especially on Letterpress and flexo machines. Based on actual production experience, here are a few key points to consider when designing and printing small text.
1️⃣ Choose the Right Font and Size
Use simple, sans-serif fonts like Arial or Helvetica, which are more readable.
For dark text on a light background, keep the font size above 4pt.
For white text on a dark background, use at least 5.5pt and bold weight.
Avoid thin or decorative fonts, as they are more likely to blur.
2️⃣ Control Ink Spread
Small text is sensitive to ink spread and dot gain, especially on flexo machines.
Use high-LPI anilox rollers (e.g., 800–1000 LPI) to control ink volume.
Maintain proper ink viscosity and Printing Pressure to avoid smudging.
Letterpress machines, especially in intermittent mode, generally provide better sharpness for fine details.
3️⃣ Use High-Resolution Plates
For both printing types, use high-resolution photopolymer plates (175–200 LPI).
CTP (computer-to-plate) imaging offers better precision and cleaner edges for small text.
4️⃣ Select Suitable Materials
Smooth, coated materials give better results for fine text.
On film or synthetic materials, corona treatment helps improve ink adhesion.
Avoid using rough or absorbent surfaces for small text areas.
5️⃣ Design with Printing in Mind
Avoid placing small text in reversed-out areas or near die-cut lines.
Add a little letter spacing to improve legibility.
Test small text during proofing, especially if multiple effects like lamination or varnish are used.
✅ Conclusion
For clear and professional small text, consider font choice, ink control, plate quality, and substrate selection. With proper design and stable production, both letterpress and flexo machines can deliver excellent print quality—even in the smallest details.