Glass composition
Container formulation and stress condition affect how the surface responds to laser energy.
CO₂ laser marking for glass
Permanent codes for bottles, jars and glass packs.
Integrate non-contact laser coding into beverage, food, cosmetic and industrial glass lines with the mark and handling proven before specification.
Application-led specification
A permanent mark without ink adhesion concerns.
CO₂ laser energy can produce a frosted surface mark on suitable glass. It is used for dates, lots, traceability data and graphics where a permanent, non-contact code is needed.
Glass composition, wall thickness, residual stress, bottle movement and code density all matter. Trials assess legibility and help manage the risk of unacceptable micro-fracturing or cosmetic impact.
Common requirements
- Glass bottle and jar date coding
- Lot and traceability data
- Codes on stationary or moving containers
- Wet or washdown-adjacent line considerations
- Product stabilisation and controlled focal distance
BottlesJarsDate codesLot codesSerialsLogos2D codes
SAMPLE TESTINGProve contrast, permanence and readability first.
What we assess
Factors that shape the final system.
The substrate is only the start. A reliable production result comes from matching the laser, optics, material response and line conditions.
Code density
Dense graphics and 2D codes require careful control of energy, spacing and mark size.
Bottle handling
Rails, guides and conveyor conditions must hold the marking area consistently.
Line environment
Moisture, condensation and cleaning practices inform housing and mounting decisions.
Quality criteria
Readability, permanence and cosmetic limits are agreed and checked on real samples.
Safe integration
Laser guarding, interlocks and controlled access are engineered into the installation.
Sample marking trial
Test the actual product, not a data sheet.
Material colour, coatings, additives, surface condition and line speed can materially change the result. Send representative samples and the code you need. We will use that evidence to guide specification.
Useful trial information: production speed, code dimensions, marking window, product orientation, environment and the quality or verification standard you need to meet.
Typical project scope
- Laser system
- Appropriate CO₂ source, wavelength, lens and scan head.
- Line interface
- Photocell, encoder, I/O and message-management requirements.
- Mechanical
- Mounting, adjustment, guarding and product presentation.
- Environmental
- Fume extraction, ingress considerations and maintainability.
- Handover
- Commissioning, operator training and documentation.
Useful specification guides