Buyer guide · Print files
How can barcode print quality be controlled on packaging?
Verify the encoded data and then test size, quiet zones, contrast, substrate, print gain and scan grade after all finishing processes.
Submit project requirements
Checklist
Files and references to prepare
- Code verification
- Printing route
- Finishing specification
- Inspection plan
- Target quantity and SKU allocation
- Approval sample and decision owner
- Required date and Mainland China delivery point
- Change and repeat-order record
Prepress control
Four checks before releasing artwork
Code verification
Confirm data, quiet zone, size, contrast and scan grade after printing and finishing; a correct digital code can still fail in production.
Printing route
Choose offset, flexographic, screen, digital or another method from quantity, substrate, colour target and variable-data needs.
Finishing specification
Define location, area, gloss, texture, registration and acceptable variation for every foil, varnish, emboss or lamination effect.
Inspection plan
Define checkpoints, sample size, measurement tools, defect photos and release authority before production starts.
Execution method
Four actions from RFQ to production
Use the production dieline
Place artwork only after the final structure and dimensions are confirmed.
Create a preflight report
Flag missing fonts, low-resolution images, colour spaces, overprint and finishing layers.
Approve the right proof
Match proof type to the question being approved: content, structure, colour or finish.
Archive the released package
Keep the final PDF, source assets, version record and approval together.
FAQ
Questions buyers often ask
How can barcode print quality be controlled on packaging?
Verify the encoded data and then test size, quiet zones, contrast, substrate, print gain and scan grade after all finishing processes.
What should be written in the specification?
At minimum, define Code verification, Printing route, Finishing specification, Inspection plan, then link quantity, sample, timing, inspection and the approved revision.
Is a physical sample needed?
A decision involving structure, material, colour, finish, assembly or use performance normally needs a physical sample matched to that question; a screen proof cannot approve everything.
Can the previous standard be reused for a repeat order?
Reuse a controlled standard only when files, material, structure, supply chain and use conditions remain unchanged. Record every change and decide whether resampling or reapproval is required.
Continue building the procurement specification