Packaging Sample Development and Approval

Which packaging sample do I need before approval?

Use a structural sample to resolve physical fit and assembly, a relevant printed sample or proof to resolve its stated artwork/color scope, and an agreed pre-production sample or checkpoint to verify the elements that must match production. Record what each reference does not demonstrate. Approval of fit does not approve color, and approval of either does not by itself release production.

Write the sample's purpose into the request. Identify the product, packaging revision, proposed materials and outstanding decisions. Ask how the sample will be made and which features will differ from production. This makes the review more useful and helps avoid approving something the sample was never intended to demonstrate.

Sample names vary between suppliers. Treat the following stages as a planning framework, then confirm the scope, cost and sequence for your project.

Start with an unprinted structural sample

An unprinted structural sample, often called a white sample, helps you review dimensions, opening, assembly and product positioning. Depending on the material, it may be brown, gray or another color. The important distinction is its agreed review scope.

Use representative products, including accessories and relevant dimensional variation. Load the pack in the intended order, close it, reopen it and remove the contents. Check usable internal space, lid clearance, insert support and any contact with delicate surfaces. Review the box and insert together; our guide to choosing packaging inserts explains the fit questions to resolve.

Ask whether the sample uses the proposed board grade, thickness and construction. If a substitute material or hand-cut process is used, record it. Approval can cover the features demonstrated, while final material, crease behavior or machine assembly may remain open.

Give printed samples and color proofs separate roles

A printed mockup can help review panel orientation, copy placement and the assembled design. Confirm whether it uses the intended printing process, substrate, inks and finishes. A digital print mounted on a box may serve a different purpose from a sample produced through the planned production route.

For critical color, agree the reference and assessment method separately. Fogra's contract-proof guidance describes color-accurate proofing under ISO 12647-7, including the simulated printing condition and proof substrate. Calling an ordinary printout a “proof” does not establish that it meets those requirements.

Compare the relevant physical references under agreed viewing conditions. Substrate and lighting influence perceived color, as explained in ISO/TC 130's print-production guidance. Phone photos are useful for discussing position or visible defects, but should not be the sole color reference.

Foil, embossing, texture and gloss need their own review scope. Ask which effects are physically represented and which are only simulated. Keep the approved artwork linked to the confirmed dieline; see the packaging artwork handoff guide.

Define what pre-production means for this order

A pre-production sample should be described in practical terms: material grade, printing method, tooling, finishing, assembly and the versions used. Ask which elements match the intended production route and which remain different.

Some projects need a dedicated pre-production sample. Others may use an agreed combination of structural samples, color references, finish samples and controlled production checkpoints. Confirm the approach before committing to tooling or a schedule. Where a first-article check is planned, identify what production can proceed before approval and where work must stop if an issue appears.

Include sample quantity, revision charges, tooling responsibilities and courier arrangements in the quotation discussion. Separate sample-making time, delivery time, buyer review and any further round of sampling. A target shipment date should account for unresolved approvals.

Review the complete package against written criteria

Use one review sheet rather than scattered comments across photos and messages. A practical checklist includes:

• Structure and dimensions: agreed measurement points, units, tolerances, opening and closure.
• Product fit: support, clearance, retention, removal and contact with vulnerable surfaces.
• Materials: board, wrap, liner and insert identities, including any sample substitutions.
• Artwork and appearance: copy, orientation, color reference, finish placement and visible workmanship.
• Assembly: loading order, folding, gluing, closures and handling during packing.
• Packing: accessory count, labels, protective layers and the proposed shipping configuration.
• Open items: each issue, responsible party, required evidence and next decision.

Decide the acceptance criteria before testing. For example, replace “the lid feels wrong” with a description of the closure behavior to investigate and an agreed way to assess it. Record a dimension with its measurement points rather than a number alone.

For an observable closure requirement, describe the behavior: with the agreed loaded product and insert, the lid must reach its intended position without forcing or pressing on a vulnerable feature. Record where you measure the closure and how you repeat the check; agree any numerical tolerance for this design separately. This describes a review method, not a universal fit tolerance.

Keep transport validation within its own scope

A sample review can identify fit or assembly problems. Transport performance needs an evaluation suited to the actual distribution route and packaged product.

ISTA's design and testing guidance recommends representative products and packages, an appropriate current procedure, and damage criteria established before testing. Agree the test configuration, sample requirements and responsible laboratory where applicable. Record any difference between the tested configuration and the intended shipment.

Avoid treating an informal drop or one undamaged delivery as proof of general performance. If the product, material, insert or closure changes, review whether the existing test evidence still applies and whether retesting is needed.

Record an approval that production can use

An approval record should identify the project or SKU, sample ID, specification revision, dieline and artwork revisions, approved features, remaining restrictions, approver and date. Keep labeled physical references where useful, supported by photographs and measurements.

Use clear outcomes: approved for the stated scope, revise and resubmit, or approved for a limited next step. If structure is approved while color remains unresolved, say so explicitly. A request to revise a sample should not be read as permission to produce it.

When looking for a reliable packaging supplier, ask for a traceable sample record. The supplier should identify material substitutions, link the sample to the current artwork and specification, and state which decisions remain open before production.

At PACKRIVA, production release brings together customer approval, the manufacturer's acknowledgement of the same versions, the required payment condition and clearance of critical open items. A purchase order or payment alone does not approve the packaging version. Quality approval and shipment release are also separate decisions.

After approval, document changes and re-approve the affected scope before implementation. Keep superseded files identifiable so an earlier attachment cannot become the production instruction by accident.

Example: the sample fits, but color is not approved. Can production start?

Hypothetical approval record, not a signed customer document: sample S-02 for a skincare carton has been reviewed with the intended bottle and insert. Structure is accepted within the recorded fit checks, but color remains open. The buyer authorizes a revised printed reference only. This example does not authorize production, tooling expenditure or shipment.

For this hypothetical pack, production cannot start under the limited approval shown. The next action is to settle the color scope, identify the approved reference, review any resulting material/artwork changes, and obtain the required release decision. If early tooling or a separate preparation step is proposed, record its exact scope, authority, dependencies and stop point before commitment; do not infer permission from the sample's fit result.

When does a change require another sample or review?

Ask which approved feature the change affects. A new bottle dimension or insert geometry requires renewed fit review; a board substitution can affect structural and printing behavior; revised artwork or a different finish needs review of the affected appearance and converting scope. If the shipping configuration changes, assess whether the previous transport evidence still applies. The responsible team must decide what evidence is sufficient for the changed scope before release.

When estimating packaging sample lead time or revision cost, request separate allowances for sample making, delivery, buyer review and the next revision. Mark dependencies: a printed sample may depend on a confirmed dieline; final artwork review depends on its actual version. This provides a usable approval sequence without inventing a standard number of days for every project.

Prepare the next sample request

Share your product details, packaging reference, approximate quantity and the questions the next sample should answer. PACKRIVA can help clarify the brief and coordinate development and sourcing with manufacturing partners in China. Discuss your packaging project to establish an appropriate sample and approval scope.