Printer feedback only
Useful for machine status, but not independent evidence of the actual characters on every pack.
Africa · addaScan
Vision inspection for dates, batch codes and labels on Nigerian packing lines
addaScan is a Johannesburg-based machine vision integrator that designs vision inspection stations and supplies industrial code readers for factories in Nigeria; where site work is agreed, its engineers travel from Johannesburg, and quotes are in US dollars. Assess automated inspection for sachet dates, bottle labels, moulded closures and visible packaging faults on production lines in Nigeria. addaScan separates the printing machine, the camera decision and the reject mechanism when scoping a project. That distinction matters when the code is present but the date is wrong, blurred or hidden by the film.
Updated 2 November 2026 · Technical contact: Frank Guo
A printer signal does not prove the date on the pack
A sachet leaves the printer with part of the batch code folded into a wrinkle. The printer reports a completed cycle, but the camera cannot establish the full text. Treat that result as uncertain, not as a correct code. Improving the view may require guiding the film, changing the inspection position or using a different light before considering a more powerful recognition tool.
Have samples, photos or a line drawing? Start the assessment now, or send them on WhatsApp.
Request a Vision AssessmentWhatsApp +27 68 925 2696Choose the inspection from the production problem
Define the evidence and the failure response before selecting a camera, then test each choice on your own products and line conditions.
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| Task | Reference and camera view | Exception and boundary |
|---|---|---|
| Date on a flexible sachet | Compare the complete visible code against the current batch and date rule; test wrinkles, reflections and print variation. | Keep unreadable evidence separate from a confidently read but incorrect date. Both need a defined product route. |
| Pouch orientation and sealing area | Identify which face is presented and whether the required print and seal-area features are visible. | Do not approve a hidden region by checking another part of the pack. Visual seal inspection cannot establish leak tightness. |
| Bottles and labels | Check the label version, presence and position against the active product reference. | Track the mismatched bottle through accumulation and confirm its removal. |
| Moulded caps | Assess visible missing material, flash or damaged edges with suitable lighting and orientation. | Set the acceptance limit using real samples; a good external view is not proof of a sound internal seal. |
Related solutions: OCR/OCV & code inspection · Pouch inspection · Bottled water line inspection · NAFDAC Label Checks on the Line: Dates, Batch, Reg. No.
What a sachet date check has to tell apart
A printed date on a flexible sachet can be clear, hidden by a fold, missing strokes or simply the wrong batch. Each state needs its own result and its own action.
Explanatory schematics from addaScan’s wrinkled-sachet guide, not photographs of a line in Nigeria. Date codes on wrinkled sachets
Compare the equipment and integration scope
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If a label or pharmaceutical code is driven by a regulatory requirement, supply the approved specification with the enquiry. A camera can check selected visible fields; it does not register a product or certify its legal compliance.
From reference to a controlled line decision
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- 1
Printer event
Identify the pack and expected date or batch.
- 2
Independent image
Read or verify the printed area under the actual film conditions.
- 3
Confirmed outcome
Route wrong or uncertain packs and verify removal; retain the exception reason.
Johannesburg engineering, with project-specific site work
Agree the line responsibilities before quotation
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| Scope decision | Information and owner to confirm |
|---|---|
| Filled packs for assessment | Arrange representative filled sachets as well as the film artwork; folds and product shape may change the view. Agree how samples are prepared and transported before sending them to Johannesburg. |
| Printer and PLC responsibility | Identify who supplies the expected date and who can modify guidance, triggering and reject logic. Reserve access to those owners during commissioning. |
Reader supply, a configured reading point and an integrated station are quoted as different scopes. Freight, import and customs responsibilities, engineering travel, installation, training and support are itemised in USD. How a cross-border quotation is structured
Standards, site location and automation partners in Nigeria
Standards and regulators
Product standards and certification marks in Nigeria sit with the bodies below.
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- Standards Organisation of Nigeria (SON)
National standards body for manufactured products.
- National Agency for Food and Drug Administration and Control (NAFDAC)
Regulates food, drugs and other regulated products, including their registration and labelling.
A camera station can check that a required mark or printed field is present and legible on each pack; whether your product needs it is confirmed with the authority or your certification adviser.
Selected technical references
- NAFDAC — Guidelines for Registration of Pre-packaged Food Products Made in Nigeria (FR&RA-GDL-002-01; effective 01/03/2026, review date 28/02/2031; sections 1.2, 3.1 and 4.7; retrieved 2 November 2026)
- NAFDAC — Director-General’s speech on the gazetted Pre-Packaged Food Labelling Regulation 2022 (Released 7 August 2023; states that the 2022 regulation replaces the 2005 version; retrieved 2 November 2026)
Site location
Site work is quoted to the factory’s actual location, for example in Lagos, Ogun State or Kano.
Automation partners
Comparing industrial automation companies in Nigeria? addaScan’s part is the inspection: it designs vision inspection stations and supplies industrial code readers, and connects them to the PLC, conveyor and reject device that your plant’s automation team, machine builder or local integrator maintains.
Prepare a useful assessment request
Provide the actual film, print samples, allowed date formats, good and faulty packs, printer signals, line speed and available reject distance. State how an operator should handle an unreadable pack after it has been removed.
Photos, drawings and samples are arranged after initial contact.
Request a Vision Assessment →Explore the related technical resources
Compare application methods
Compare the relevant method and its limits in these application guides.
Questions before requesting a quotation
Does addaScan have an office or team in Nigeria?
No. addaScan works from Johannesburg, South Africa. Projects are assessed remotely, and agreed site work is done by engineers travelling from Johannesburg, quoted in US dollars with travel itemised.
What happens when only part of a sachet date is visible?
Treat it as an uncertain read and follow the agreed hold or reject route. Do not complete missing characters from the printer signal or from the preceding pack.
Can better software solve every wrinkle problem?
No. If the required characters are hidden, first assess film guidance, lighting and inspection position. Recognition needs a view containing the evidence.
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Discuss the product, line and required action
Describe the product, the required decision and the factory country. We will use those details to scope the next assessment.