How to Maintain Coding Accuracy Across Different Surfaces
CONTROL PRINT LIMITED | October 23, 2026
In manufacturing, product coding plays a vital role in ensuring accurate product identification, traceability, and compliance with applicable labelling requirements. From printing batch numbers and manufacturing dates to barcodes and variable product information, every code must remain clear, legible, and correctly positioned.
However, maintaining coding accuracy across different surfaces can be challenging. Materials such as corrugated cartons, paperboard, plastic bottles, flexible packaging films, glass, and metal have different surface properties that influence print quality, ink adhesion, and readability.
Understanding these differences and selecting the right industrial coding and marking technology can help manufacturers achieve consistent results across a wide range of products and applications.
Why Does Surface Type Matter in Product Coding?
The surface of a product directly affects how a code is printed and how well it performs under actual production conditions. One of the key considerations is whether the material is porous or non-porous.
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Porous surfaces absorb ink to varying degrees. Common examples include paper, corrugated cardboard, and certain uncoated packaging materials. While absorption can support drying, excessive spreading may affect character definition and code readability.
Non-porous surfaces, such as glass, metal, and many plastics, generally absorb little or no ink. Here, ink adhesion, drying time, surface finish, and resistance to handling become important considerations.
Coatings, moisture, condensation, surface curvature, and production-line speed can also influence the final print quality. Therefore, a coding solution that performs well on one material may require different consumables or settings when used on another.
Choosing the Right Coding Technology for Different Surfaces
Selecting a suitable coding and marking system depends on the substrate, production speed, information to be printed, and operating environment.
- Continuous Inkjet (CIJ) Printing
CIJ printers are widely used for continuous, high-speed coding on compatible products and packaging surfaces. They can print batch numbers, dates, and other variable information on applications such as plastic bottles, glass containers, metal components, and selected packaging materials.
The choice of ink is particularly important when coding non-porous surfaces. Manufacturers should assess ink compatibility, adhesion, drying time, and resistance to handling under actual operating conditions.
- Thermal Inkjet (TIJ) Printing
TIJ printers are suitable for applications requiring high-resolution text, barcodes, and variable information on compatible substrates. They can be used on selected cartons, paperboard packaging, labels, and treated or especially compatible non-porous surfaces.
Print quality depends on matching the cartridge and ink formulation to the material, as well as maintaining the correct print distance and positioning.
- Thermal Transfer Overprinting (TTO)
TTO printers are particularly suited to printing variable information on compatible flexible packaging films. Common applications include snack packets, pouches, and flow wraps, where clear batch details, dates, and other product information must fit within a defined print area.
The ribbon, film, print settings, and contact conditions must be compatible to achieve consistent results.
- Laser Marking
Laser marking creates marks through the contact of a laser with a compatible material. It can be considered for selected applications involving plastics, metals, and other substrates, depending on the laser type and material characteristics.
The resulting mark depends on the material, laser wavelength, settings, and required contrast. Application trials are important to confirm suitability.
- High-Resolution (DOD) Printing
High-Resolution Drop-on-Demand (DOD) printers are designed to deliver clear, readable codes with flexible printing capabilities for text, graphics, and barcodes. They are particularly suitable for shipper cartons and secondary packaging applications, where larger characters and clearly visible product information are often required.
With advanced printhead technology, High-Resolution printers can support coding requirements across a variety of compatible surfaces. The choice of printer and ink should be based on the substrate, print area, code specifications, and production environment to ensure consistent results.
Best Practices for Maintaining Coding Accuracy
Choosing the right printer is only one part of achieving reliable coding. Manufacturers should also consider the following practices:
- Match consumables to the substrate: Select an ink or ribbon suited to the material, surface finish, and operating conditions.
- Validate print quality before production: Test codes on the actual packaging material and check legibility, adhesion, and scanability where applicable.
- Optimise printer settings: Adjust suitable parameters such as print distance, placement, and speed to meet application requirements.
- Consider environmental conditions: Consider moisture, condensation, temperature, dust, and other factors that may affect printing performance.
- Standardise quality checks: Inspect sample codes during setup, after product or material changes, and at appropriate intervals during production.
- Maintain coding equipment: Follow recommended cleaning and maintenance procedures to support consistent performance and reduce avoidable interruptions.
These measures can help reduce illegible codes, rework, and product rejection while supporting efficient production operations.
How Control Print Supports Different Coding Applications
Control Print offers a range of industrial coding and marking solutions, including Continuous Inkjet (CIJ), Thermal Inkjet (TIJ), Thermal Transfer Overprinting (TTO), Laser, and High-Resolution Drop-on-Demand (DOD) printing, printing technologies for diverse manufacturing applications.
Each technology addresses different coding requirements. CIJ supports continuous coding on compatible products and packaging surfaces, while TIJ is suited to high-resolution variable information. TTO is particularly useful for flexible packaging films, and laser marking can be considered for permanent marking on compatible materials. High-Resolution DOD printers are ideal for shipper cartons and secondary packaging, where clear, legible text, graphics, and barcodes are essential.
By evaluating the packaging material, production speed, code requirements, and operating environment, manufacturers can identify the right technology for their specific application.
Whether coding information on porous cartons, printing on flexible packaging films, or marking compatible non-porous surfaces, Control Print’s portfolio helps manufacturers address diverse product identification requirements.
Conclusion
Maintaining coding accuracy across different surfaces requires more than selecting a printer. It involves understanding material properties, choosing compatible printing technology and consumables, and validating performance under actual production conditions.
The right coding and marking solution helps manufacturers maintain readable product information, improve coding consistency, and support reliable product identification across diverse applications.
Explore Control Print’s coding and marking solutions at www.controlprint.com.