Buyer guide · Finishing
How should spot UV be controlled on packaging?
Define gloss target, artwork, film or coating compatibility, registration, edge quality, cracking and blocking risk on the approved substrate.
Submit project requirements
Checklist
Finish details to put in the specification
- Finishing specification
- Surface coating
- Tolerance stack-up
- Rub and abrasion
- Target quantity and SKU allocation
- Approval sample and decision owner
- Required date and Mainland China delivery point
- Change and repeat-order record
Process evaluation
Four controls behind a repeatable finish
Finishing specification
Define location, area, gloss, texture, registration and acceptable variation for every foil, varnish, emboss or lamination effect.
Surface coating
Clarify coated, uncoated, varnished or laminated surfaces because ink holdout, rub resistance and recyclability can change.
Tolerance stack-up
Review how material, printing, die cutting, gluing and packed-product variation combine at final assembly.
Rub and abrasion
Set dry or wet rub method, load, cycles and acceptance appearance for the actual ink, coating and delivery environment.
Execution method
Four actions from RFQ to production
Mark a separate finish layer
Use named vector layers for foil, varnish, emboss, cut and other process areas.
Approve on the real substrate
Colour, gloss, relief and adhesion must be checked on the intended material.
Set visible tolerances
Define registration, edges, pinholes, scratches, wrinkles and acceptable variation.
Retain production references
Keep approved samples, process settings and supplier references for repeat orders.
FAQ
Questions buyers often ask
How should spot UV be controlled on packaging?
Define gloss target, artwork, film or coating compatibility, registration, edge quality, cracking and blocking risk on the approved substrate.
What should be written in the specification?
At minimum, define Finishing specification, Surface coating, Tolerance stack-up, Rub and abrasion, 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