SOURCING TASK GUIDE · PRODUCT CHECKS
Check product samples inside their packaging
Custom packaging must protect products during transit while delivering an intuitive, premium unboxing experience. Physical sample checks evaluate molded pulp, EVA foam trays, and rigid boxes against actual production units to detect loose cavities and dieline errors before mass printing.
Zhipact coordinates production samples of both your product and custom packaging at an agreed partner facility, evaluating cavity fit, insertion ergonomics, lid flushness, and packaging security.
What you share for this task
- Approved packaging dielines (PDF/AI) with dimension callouts, material specs, and folding scores.
- Golden reference samples or production units of the physical product to test inside packaging.
- Unboxing requirements such as thumb notches, ribbon pulls, and accessory retention.
- Sample dispatch details from both the packaging factory and the product manufacturer.
What we coordinate and deliver
- A structured packaging fit and unboxing evaluation report with comprehensive photography.
- Dimensional gap measurements between product contours and tray cavity recesses.
- An ergonomic assessment covering product insertion, removal ease, and lid drop fit.
- Actionable revision notes in English and Chinese to guide packaging die and foam adjustments.
PRACTICAL RISK POINTS
Three critical issues to resolve before sample approval
Key physical checkpoints to verify against specifications before production.
1. Rigid box lid failing to close flush due to product protrusion
The situation: Product components extending 2mm above the insert rim, preventing rigid box lids from closing flush against shoulders.
How we check it in China: We place products inside inserts, check closure clearance with feeler gauges, and verify lid seating along edges.
The record & next decision: Flushness gap photos and depth measurements allow you to instruct the factory to deepen the insert cavity.
2. Die-cut EVA foam or molded pulp cavity too loose, causing rattling
The situation: Oversized cavity cutouts allowing products to shift during transit, scuffing polished finishes and damaging accessories.
How we check it in China: We evaluate cavity clearance, perform gentle tactile shake checks, and measure lateral play with calipers.
The record & next decision: Movement measurements and rattling logs provide clear justification to tighten die-cutting tooling for a snug fit.
3. Shipper cartons sized without sufficient corner cushioning buffer
The situation: Shipper cartons sized without sufficient clearance or buffer allowance, risking corner crushing under pallet weight.
How we check it in China: We measure outer dimensions against master packs, verify corner clearance, and check tape adhesion. Formal ISTA drop testing can be scoped as a separate lab protocol.
The record & next decision: A packaging review report provides photo evidence, allowing you to adjust carton dimensions or board grade.
| Packaging Element | Inspection Criterion | Target Specification | Sample Observation | Evaluation |
|---|---|---|---|---|
| Rigid Box Lid Closure | Lid-to-base gap when fully seated | Flush seating, max 0.5mm gap | Lid seats flush, 0.2mm uniform perimeter gap | Pass |
| EVA Foam Product Cavity | Friction fit & lateral movement | Snug friction fit, < 1.0mm play | Product sits securely with zero rattling | Pass |
| Thumb Notch Clearance | Finger access for product extraction | Width >= 25mm, depth >= 12mm | 28mm width x 14mm depth, smooth extraction | Pass |
| Accessory Compartment | Cable & manual retention | Items stay retained during invert check | USB cable slips out when box inverted 90 deg | Needs Trim |
| Outer Shipper Fit | Inner box clearance in master carton | 5mm total perimeter clearance | Tight zero-clearance fit, corners bulge | Reject |
Clear execution roles and agreed boundaries
Eddie leads checkpoint review and the next decision. Coordination colleagues align sample references, logistics and follow-up records. Before work starts, the scope identifies who performs each check, the location, suitable instruments and the reporting method.
Transparent fee structure: Sourcing coordination is quoted as an agreed service fee. Physical handling, kitting or checks follow agreed task rates via partner facilities. Reimbursable third-party expenses require written approval.
COMMON QUESTIONS
Frequently asked about this task
Can you test both EVA foam inserts and molded paper pulp trays?
Yes. We evaluate tray fit, surface abrasiveness against product finishes, insertion ease, and thumb notch usability for both foam and molded pulp designs.
Can you check how packaging looks after repeated opening and closing?
An opening-and-closing check can be included with an agreed cycle count, handling method and acceptance points. The record identifies edge wear, hinge damage or insert deformation observed under that procedure.
Ready to scope your product checks task?
Share your product drawings, physical samples, or inspection checkpoints. We clarify feasibility, deliverables, and fees before paid work starts.