Choosing barcode labels for warehouse conditions

Match the label’s expected life and warehouse exposure to its face material, adhesive and print method, then trial the finished combination on the real surface. Check symbol placement and readability after representative handling, not just straight off the printer.

Define the label's job

Separate short-lived carton and dispatch labels from location, tote and asset labels expected to stay in place. The longer a label must last, the more important it is to check how its print and bond hold up over that period.

Record whether the surface is corrugated board, plastic, metal or wrapped goods, and whether it is flat, curved, dusty, damp or cold when the label is applied. Also note later exposure to rubbing, cleaning, condensation, sunlight and temperature changes.

An internal location label can follow the warehouse’s identifier and layout rules. For a logistic unit moving between trading partners, check GS1 Australia’s GS1 Logistic Label Fact Sheet and applicable requirements; do not transfer pallet-label layout rules to a small internal bin sticker.

Match print, face material and adhesive

Direct thermal printing marks heat-sensitive media without a ribbon and can suit a short-lived label, but heat, light and abrasion can affect the image. Thermal transfer uses a ribbon with compatible media and can provide a more durable image, but performance depends on the particular ribbon, label face and exposure.

Paper may be adequate for a protected, short-lived use. Named synthetic substrates include polypropylene, polyester, polyethylene and PVC; choose among them against the expected exposure and trial the result.

Thermal-transfer ribbon coatings include wax, wax-resin and resin. The coating affects durability, substrate compatibility and resistance to heat, chemicals and abrasion; a wax ribbon on polyester may not bond correctly and can produce print that smears or fails to scan reliably.

Check the adhesive separately: a readable printed face is of little use if the label lifts. Confirm the supplier’s minimum application temperature and service temperature against the proposed stock and the real surface; these are separate specifications.

Confirm that the existing printer supports the selected media and ribbon. Keep the supplier’s specification with the selection instead of assuming every synthetic or thermal-transfer label has the same limits.

Label Material Durability Ranking by Exposure Conditions

Preserve a scannable symbol

A barcode’s readability can depend on its size, clear area, contrast, placement and print quality. Leave the required clear area around the symbol, and avoid folds, seams and edges that could damage it.

Avoid reflective wrap over the code. Include human-readable characters in the position required by the applicable symbol rules so staff can identify a failed scan without guessing.

For a GS1 logistic label, follow the symbol and placement guidance in GS1 Australia’s GS1 Logistic Label Fact Sheet. For other labels, choose a symbol size that works at the expected reading distance with the printer and scanners in use; do not shrink it merely to fit more text.

Trial the label where it will live

Apply samples to actual surfaces using the normal preparation and handling method. Scan at the angles and distances workers will use, then check again after exposure representative of the label’s intended life.

Record lifting, fading, smearing, glare, damaged quiet zones, unreadable text and incorrect decoded values separately. A single successful scan does not establish print quality.

GS1 Australia accepts PDF files with the barcode at actual size for an interim report, which can guide physical dimensions, barcode type and number structure. The interim report does not assess or report ISO grades or print quality; for print-quality checks, submit a formed, printed final sample for testing.

Print runs can differ because of machine settings, ink batches or mixes, plate or roller pressure, equipment wear, substrate reflectivity, and ambient humidity or temperature. Aim for a clear pass on the test sample; a marginal pass can make a full print run risky.

GS1 Australia barcode reports generally take 3–4 working days from receipt of products, depending on workload. Retain the chosen stock, ribbon, printer settings and label design, and repeat relevant checks when materials or settings change.

GS1 Australia Barcode Testing Timeline and Requirements