Buyer guide · Finishing
Which varnish is suitable for printed packaging?
Choose varnish from gloss or matte target, rub protection, folding, odour, product contact, blocking and recyclability requirements.
Submit project requirements
Checklist
Finish details to put in the specification
- Surface coating
- Rub and abrasion
- Stiffness and forming
- Contact boundary
- 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
Surface coating
Clarify coated, uncoated, varnished or laminated surfaces because ink holdout, rub resistance and recyclability can change.
Rub and abrasion
Set dry or wet rub method, load, cycles and acceptance appearance for the actual ink, coating and delivery environment.
Stiffness and forming
Evaluate folding, scoring, opening force and load support on the intended structure rather than judging material only by hand feel.
Contact boundary
Confirm whether any component directly touches food and route direct-contact materials through the required specialist compliance review.
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
Which varnish is suitable for printed packaging?
Choose varnish from gloss or matte target, rub protection, folding, odour, product contact, blocking and recyclability requirements.
What should be written in the specification?
At minimum, define Surface coating, Rub and abrasion, Stiffness and forming, Contact boundary, 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