Private Label & OEM2 min read

Coating Variable Printing: Approve the Actual Batch-Code Process

A blank coding area in artwork does not establish that the production batch code will print clearly and remain usable. Evaluate the actual variable-printing process on the selected package construction.

Updated · NANOLAB Knowledge

The key distinction

The printer, ink or ribbon, surface and production sequence form a practical system. The approval should address the information format and its readability after normal handling. A decorative mockup with a digitally added code cannot substitute for a sample produced by the equipment that will code the packs.

Practical checks

  1. Define the required code content and its relationship to traceability records.
  2. Produce representative coded packaging using the intended process.
  3. Check readability and suitability through the agreed handling trial.

Example

Illustrative example: a code looks clear immediately after printing but becomes difficult to read during routine packing. The issue requires review of the actual coding system and process, not merely a larger text box in the artwork file. A production trial makes that distinction visible.

Scope and limits

Do not improvise solvents or abrasion tests on chemical packs without an approved procedure. This guide does not prescribe a particular ink or permanence standard. The supplier and packaging team should agree the required performance and retain the accepted sample and process settings.

Related guidance

Discuss bulk supply and private-label requirements with NANOLAB. Use the current product documentation for formulation-specific instructions.