Buyer guide · Print files
What should be used as a packaging colour reference?
The strongest colour reference is an identified, approved physical standard tied to substrate, finish, lighting and an agreed tolerance.
Submit project requirements
Checklist
Files and references to prepare
- Colour target
- Proof purpose
- Approved reference
- Tolerance stack-up
- 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
Colour target
Use an approved physical reference, Pantone target or measurable tolerance and define the viewing condition for approval.
Proof purpose
State whether the proof approves structure, layout, colour direction, material or finished process because one proof rarely confirms everything.
Approved reference
Seal, date and identify the approved sample with linked files and limits; keep reference ownership and storage controlled.
Tolerance stack-up
Review how material, printing, die cutting, gluing and packed-product variation combine at final assembly.
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
What should be used as a packaging colour reference?
The strongest colour reference is an identified, approved physical standard tied to substrate, finish, lighting and an agreed tolerance.
What should be written in the specification?
At minimum, define Colour target, Proof purpose, Approved reference, Tolerance stack-up, 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