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Cartons with printed 2D-code labels on a conveyor beside an inspection camera.
Industrial marking and traceability

Bottle Laser Coding: How the Process Works

Follow the bottle from approved message and trigger through marking, code checks and a confirmed accept, reject or hold decision.

General industrial marking and labelling. Bottle laser coding must be assessed using the actual bottle material, required mark and production conditions.

In brief

Approve the message, present and trigger the bottle, apply the mark, then check readability, position and the encoded value separately. Keep each result associated with the correct bottle until its accept, reject or hold decision is complete.

Use the verification and exception checklist to agree the trial records. Review the actual bottle or label surface before selecting the station.

On the production floor

Understand the complete route from input to accepted output — Bottle Laser Coding

Plan bottle laser coding around your identifiers, substrates, production events, system interfaces, exceptions and verification records. Discuss a practical data-flow approach with Oxford Traceability. Follow the material or part through each operating step and include recovery, cleaning and change in the real cycle.

Discuss your application
Practical application guide

Follow one bottle from trigger to accepted code

A bottle coding trial should establish which bottle received which message, whether the mark stayed inside its usable area and what happens when either check fails. A clear stationary sample is only the beginning of that assessment.

Choose the surface before the station

Record whether the mark belongs on the bottle wall, cap, coating or label. Keep separate sample results for each material and colour. If the mark is on a label, include label movement and overlap in the assessment. A result on one surface should not be treated as approval for another surface on the same bottle.

Connect the trigger to the moving bottle

Trace the detector signal through the marking window. Identify where bottle rotation, conveyor slip or a changing gap could shift the mark. Compare steady running, first bottle after a pause and closely spaced bottles. Record a missed trigger separately from a mark that was triggered but landed outside the allowed position.

Confirm the message before releasing production

Use the longest approved batch/date message and a deliberately wrong job in the trial. Decide which acknowledgement confirms that the new message is active. Check the last bottle of the old job and first bottle of the new job, including bottles waiting between the detector, laser and inspection point.

Give every failed result a defined route

Separate an absent mark, unreadable mark and readable but incorrect value. Agree whether each outcome stops production, rejects the affected bottle or places a defined group on hold. Demonstrate how an inspection result remains associated with the right bottle until the reject or hold decision is complete.

A worked planning example

For illustration, suppose a line pauses with three bottles between the marking and inspection stations when the batch changes. The recovery decision must identify which message belongs to each bottle already in that space. Trial the restart with identifiable samples and reconcile the inspected result and final disposition for all three; do not assume that changing the displayed job changes bottles already marked.

Acceptance questions to resolve

For the next step, discuss this application using the examples and unresolved decisions above.

Important scope points

Keep connected responsibilities clear

Your final bottle laser coding scope must also account for exception, rework and duplicate handling, verification, retention and reconciliation evidence, current regulations and the conditions at your site.