Critical defect
A safety, regulatory, legal, or serious-use risk. Define examples and an acceptance rule appropriate to the destination market and product.
Buyer Guide · Published September 5, 2026
OEM bag quality control from approved sample to packed carton.
Define what the factory checks, when it checks it, what counts as a defect, which evidence is recorded, and who approves release before custom bags ship.
Short Answer
A complete bag QC plan controls the standard, process, defects, and evidence.
Use the approved sample and written specification to check incoming materials, first units, in-line workmanship, critical measurements, function, final appearance, labels, packing, and cartons. Record failures, corrective action, reinspection, and release approval.
Download the QC checklist12 Quality Checkpoints
Build the inspection plan around the order's actual risks.
| Checkpoint | What to verify | When |
|---|---|---|
| Approved standard | Signed sample, specification, bill of materials, color standard, artwork, packing method, and closed comments | Before material release |
| Incoming materials | Material type, color, handfeel, thickness or weight, width, visible faults, coating, lining, zipper, hardware, labels, and documents | At receipt and before cutting |
| Cutting & preparation | Panel direction, matching, dimensions, reinforcement, logo position, marking, bundling, and shade control | First cut and by batch |
| In-line sewing | Seam allowance, stitch consistency, skipped stitches, puckering, thread ends, symmetry, stress-point reinforcement, and assembly order | At line start and during production |
| Measurements | Critical product, opening, pocket, handle, strap, gusset, and logo-position dimensions against defined tolerances | First units, in-line, and final |
| Appearance | Shape, surface, stains, scratches, dents, color variation, edge finishing, alignment, odor, and presentation | In-line and final |
| Function | Zipper movement, closures, buckles, snaps, drawcords, handles, straps, compartments, wheels or attachments where applicable | Sample, in-line, and final |
| Logo & labeling | Artwork, spelling, color, method, dimensions, placement, orientation, care label, barcode, hangtag, and country marking | First unit and final |
| Strength checks | Handle, seam, strap, hardware, closure, or load checks defined for the construction and market requirement | As specified by buyer or test plan |
| Final inspection | Sampling method, defect classification, acceptance rule, quantity, assortment, workmanship, dimensions, function, and records | After production and before shipment release |
| Packing & cartons | Stuffing, tissue, polybag, warning marks, barcode, assortment, carton count, carton marks, sealing, dimensions, and condition | Packing start and final random check |
| Nonconformance closure | Photo, quantity affected, containment, root cause, rework or replacement, reinspection, owner, and approval | Whenever a defect or mismatch is found |
Defect Language
Agree on classification before an inspection finds a problem.
Major defect
A fault likely to cause rejection, loss of function, reduced durability, obvious appearance failure, or nonconformance to an important specification.
Minor defect
A limited workmanship or appearance departure that does not materially reduce function but still fails the approved standard.
Kanrow Process Evidence
Working photos show measurement, component, station, and packing checks.
QC station review
Inspection tools, reference panels, and sample records kept close to the checking table.
Component inspection
Cut pieces, panels, and semi-finished parts are reviewed before they move into assembly.
Packing line check
Finished bags are sorted, checked, packed, and labeled before cartons leave the workshop.
Measurement check
Dimensions, seams, and finishing details are checked against approved references.
Minimum inspection record
Record the order, SKU, factory, line, stage, date, approved standard, quantity produced and checked, measurements, defect type and count, photos, corrective action, reinspection result, inspector, and release decision. Retain the record with the approved sample history.
Quality Control FAQ
Questions to resolve before production begins.
What quality-control steps should an OEM bag factory provide?
The plan should include an approved production standard, incoming-material checks, first-unit and in-line checks, critical measurements, workmanship and function review, final inspection, packing verification, nonconformance closure, and dated evidence.
Is 100% inspection enough for custom bags?
Not by itself. The buyer still needs a written standard, trained inspectors, defined defect classes and tolerances, traceable records, escalation rules, and verification that reworked goods were checked again.
Should every bag use the same inspection checklist?
No. Keep a common framework, then add construction-specific checks for the material, closures, hardware, seams, load points, decoration, labeling, packing, destination market, and buyer requirements.
What evidence should a factory provide after inspection?
Useful evidence includes order and SKU identification, inspection date and stage, quantity checked, specification used, results by checkpoint, measurement records, defect photos and counts, corrective action, reinspection result, and release approval.