Packaging Sample Guide: Digital Proof, White Dummy and Production-Method Samples

Packaging Sample Types at a Glance

Why Sample Selection Matters

A sample is useful only when it answers a defined approval question. Ordering the least expensive sample can create extra time and cost when it does not represent the main risk.

• A digital proof may solve an artwork problem without proving the structure.
• A white dummy may solve a product-fit problem without proving the finished appearance.
• A digital printed sample may show the concept without reproducing offset-production color.
• A production-method sample may represent selected final processes but still needs written acceptance criteria.
• A physical sample can become obsolete when dimensions, materials, artwork or finishing change.

Define the purpose first, then choose the sample route. Use the custom packaging quote checklist to send the same product, artwork, material and timeline inputs with the sample request.

1. Digital Proof: Artwork and Dieline Review

A digital proof is normally a PDF or other controlled file used to review the relationship between artwork and the approved dieline. It is not a physical package. For hang tags, the approved file should also identify hole position, attachment details, folds and protected barcode or QR areas; follow our hang tag sample approval and dieline workflow before release.

What to check

• Correct artwork revision and SKU.
• Panel direction and opening orientation.
• Bleed, safe zones, cut lines and crease lines.
• Text, ingredients, legal copy and language.
• Barcode or QR data and position.
• Separate layers for foil, embossing, Spot UV, white ink or windows.

What it cannot confirm

A digital proof cannot confirm physical size, board thickness, folding behavior, product fit, print color on the selected substrate, surface finish, foil result or insert assembly.

Follow the print-ready artwork and dieline guide before releasing the production file.

2. White Dummy: Structure and Product Fit

A white dummy is an unprinted physical sample used to review structure. It may use the intended board direction or a representative material, depending on the purpose agreed with the supplier.

What to check

• Finished dimensions and measurement method.
• Opening, closing and folding sequence.
• Product insertion and removal.
• Bottom security and panel alignment.
• Insert cavity, orientation, support points and movement.
• Space for accessories, manuals, cables or samples.
• Manual or automated packing requirements.

If printed instructions are packed with the product, use our instruction manual format and sample approval guide to define finished size, page count, fold or binding, language versions and the sample stage needed to confirm pack fit.

What it cannot confirm

A white dummy does not approve final artwork, ink color, lamination, varnish, foil, embossing, Spot UV or production-surface appearance.

Use the real product or an approved physical master when fit is critical. Review custom box inserts when the package needs controlled product positioning.

3. Digital Printed Sample: General Visual Direction

A digital printed sample is a physical sample printed through a digital process. It can help buyers review the overall presentation when a printed object is needed before the final production route is released.

What to check

• Artwork position and panel continuity.
• General color direction.
• Image scale, text size and visible hierarchy.
• Whether the printed design works on the assembled structure.
• General customer presentation for internal review or photography.

Why it may differ from mass production

Digital and mass-production printing can use different inks, screening, paper surfaces, coatings, drying conditions and finishing methods. Screen appearance also differs from physical print. Approve the digital sample for the attributes it represents, not as an automatic exact-color standard.

Use the CMYK vs Pantone packaging color guide when color control is a major project risk.

4. Production-Method Sample: Closer Final Approval

A production-method sample is intended to reproduce selected parts of the planned production route more closely. The exact scope must be written into the sample request.

For molded pulp projects, the molded pulp RFQ and cost-driver guide explains how tooling, design revisions and sample stages should be stated before quotations are compared.

Possible approval points

• Selected paperboard or wrap-paper direction.
• Offset or other agreed production printing.
• Lamination, varnish, foil, embossing, debossing or Spot UV.
• Die cutting, creasing, gluing and handmade assembly.
• Insert material, product fit and component placement.
• Finished presentation and packing sequence.

What still needs clarification

A production-method sample does not automatically prove every bulk-production variable, final inspection plan, order-wide consistency or transport performance. Record the approved attributes, measurement method and acceptable production variation.

Use the packaging finishes guide when a decorative process needs separate approval.

Which Sample Should You Request?

Packaging Sample Approval Checklist

Avoid approving a sample with only “looks good.” Record:

• Project name, SKU and sample identification.
• Product revision used for fit testing.
• Packaging dimensions and measurement condition.
• Material, board grade or representative-material note.
• Artwork and dieline revision.
• Color reference and what the sample can represent.
• Finishing, insert, assembly and packing scope.
• Approved attributes.
• Items not represented or not approved.
• Required corrections and whether a new sample is needed.
• Approver name and approval date.

The custom packaging tolerances guide explains how to connect the approved sample with measurements, conditions and acceptance criteria.

When a New Sample May Be Required

A previous approval may no longer be valid when the production specification changes. Review the need for a new sample after changes to:

• finished dimensions or dieline structure;
• product size, weight or orientation;
• paperboard, wrap paper, flute or insert material;
• artwork, color method or print coverage;
• foil, embossing, Spot UV, window or lamination;
• gluing, assembly or packing sequence;
• SKU count, labels or regulatory copy;
• the requirement being approved.

Minor text corrections may need only a revised digital proof. Structural, material or finishing changes may need a new physical sample. The responsible buyer and supplier teams should decide based on the changed risk.

Sample Cost and Timing

Sample cost is project-specific. It can depend on sample type, material, tooling, printing, finishing, assembly, insert scope, revision rounds and courier delivery. A quotation should state which processes are included and whether any later production credit applies.

HS PACKFACTORY's current public planning baseline is 3–7 days for sampling. The confirmed schedule begins after the required product information, structure, artwork and sample scope are sufficiently defined. Complex tooling, specialty materials or repeated revisions may require a separate schedule.

Sample quantity and mass-production MOQ are separate decisions. Review the custom packaging MOQ guide before planning the first production order.

What to Send for a Packaging Sample Request

• Product dimensions, weight and photos.
• Physical product or approved master when fit is critical.
• Packaging type and reference structure.
• Finished size and quantity per SKU.
• Artwork and dieline status.
• Material and finish direction.
• The main risk the sample must approve.
• Requested sample route.
• Target date and delivery country.
• Required records, measurements or packing trial.

Common Sample Approval Mistakes

• Requesting a printed sample before the structure is approved.
• Approving color from a screen without a physical reference.
• Testing an insert without the real product or controlled dimensions.
• Assuming a digital printed sample proves exact mass-production color.
• Changing materials or finishes after sample approval without a risk review.
• Keeping no written record of what the sample approved.
• Using one approved SKU as proof for different sizes or artworks.
• Assuming a sample guarantees every mass-production unit will be identical.