Approving a Print Proof Before Bulk
The signed proof is the reference bulk is matched against. This page is about the moment the spec stops being negotiable.
For the person whose signature releases a packaging run to bulk. Sets the order to check a proof in: structure, colour, finishing, then copy and codes – and states what that signature does and does not commit either side to.
What to Check, and in What Order
Order matters. Checking colour before structure wastes a round, because a structural change reprints everything anyway.
| Structure and fit first. | Does the box hold the product, close the way you intended, and open without tearing?If the proof for your job is made up rather than flat, put the actual product in it; if it is flat, this is the check that waits for the sample. For folding cartons, die-cut tolerance is about ±0.5 to 1.0 mm; if your insert or product has less clearance than that, say so before the die is cut. |
|---|---|
| Then colour. | Against your reference, in daylight, on whatever the proof for your job physically is. A screen is backlit and will not settle it. If a Pantone was specified, check the match; if CMYK, check that the overall balance reads right. |
| Then finishing. | Is the lamination the one you chose, is the spot UV only where it should be, is the foil the right tone, is the emboss deep enough to feel. |
| Then copy and codes. | Text, legal marks, barcode number and quiet zone. This is the last check because it is the cheapest to fix if everything above is settled. |
What Has to Be Settled Before a Proof Is Worth Requesting
Final artwork. A proof of a draft proves the draft.
A colour reference: a Pantone code with coated or uncoated stated, or a print-ready file with an embedded profile.
Finishing choices, because they change the tooling the proof is made with.
Who signs. Not a name, a role: the person whose approval your side will stand behind.
What a Signature Does and Does Not Cover
This is the sentence disputes turn on, so it is worth stating plainly.
If your own buyer requires a measured colour figure, include it in the enquiry so it is answered on the quote rather than discovered after a run.
A signed proof fixes
the structure, the artwork, the finishing specification and the colour reference. Bulk is produced against it.
A signed proof does not fix
exact colour on every sheet of a run: paper and finish affect how a colour reads, and the same ink reads differently on kraft and on white board. If your product has a specific colour requirement, state it while the proof is still being set up.
Changes after signature
mean a new proof, new tooling if the die or plate changes, and a restarted production clock. Sampling takes 7 days once structure and specification are confirmed; standard production is 15 to 30 working days once specifications, artwork and sample requirements are confirmed, with the dates fixed on each quote.
What the Factory Puts Behind a Proof
Two things sit behind a proof: what Zhypacking can show you on it, and what it holds afterwards.
The second is the proof you signed. It is what production is set against. A file, a screen and a verbal agreement about a colour are all upstream of it.
What Zhypacking runs: CMYK offset and Pantone spot colour; matte, gloss and soft-touch lamination; spot UV; gold and silver foil; embossing and debossing; windowing and die-cutting. A proof is where the ones your job uses get shown to you for approval.
If it is the first of those, the checks on this page that need a physical object wait for the sample.
If your own approval process requires a specific proof form, a digital file, a printed proof or a made-up sample, state it in the enquiry.
Quality control covers sample approval and pre-shipment inspection after the proof is signed.
Where to Go Next
Pantone or CMYK for packaging covers the colour decision you make before the proof exists. Made late, that decision costs a reprint; made early, it costs one line in the brief.
Barcode and label placement covers what to check on the same proof, and it belongs in the same pass – codes are cheap to fix on the proof and expensive to find after a run. Sample and lead time covers what the signature starts: 15 to 30 working days of production, once specifications, artwork and sample requirements are confirmed.
Custom packaging services covers everything upstream of the proof, and quality control covers what is checked after it is signed. Our product range is where the structures a proof is made for actually live.
Send Your Artwork for a Proof Walkthrough
Send your artwork with the enquiry. The proof stage covers what to check in what order, what a signature commits each side to, and which of your questions can only be settled on a physical sample.
If there is a colour or tolerance requirement from your own buyer, send it at the same time. Raised before the proof it is a specification; raised after, it is a reprint.