Quality Control Process
Systematic quality assurance from raw materials to finished products. Our QC workflow is built for consistency, traceability, and retail readiness at scale.
Raw Materials
Incoming inspection and material compliance verification
Production Process
In-line monitoring and process control checkpoints
Finished Products
Final inspection and documentation support
Raw Materials Inspection
Every batch of yarn and accessory components undergoes incoming inspection to confirm specification fit, safety requirements (as applicable), and full batch traceability.
Yarn Incoming Inspection
Fiber content confirmation, color consistency, tensile checks, and appearance review per spec.
Accessory & Tool Safety Check
Hooks/needles/markers reviewed for sharp edges, burrs, choking-risk sizing, and material suitability.
Packaging Material Verification
Material safety screening and print/finish checks (as required) to meet brand and market needs.
Batch Records & Supplier Documents
COA/ROHS/REACH (if applicable), lot IDs, and incoming inspection logs maintained for audit readiness.
- IQC checklist & sampling record (AQL-based)
- Material photos (lot-level)
- Supplier certificates (as required)
- Nonconformance log & disposition
- Accepted for production
- Quarantine / rework request
- Supplier corrective action (when needed)
- Lot traceability confirmation
Incoming Inspection Focus
Note: Inspection scope and documentation are aligned to customer specification and target market requirements.
Process Control Points
In-line checks are executed based on control plans and customer-specific acceptance criteria.
Production Process Monitoring
Continuous monitoring throughout production supports stable output, early detection of deviations, and documented corrective actions when required.
In-Line Checkpoints (IPQC)
Inspection at defined steps to control workmanship, dimensions, and assembly consistency.
Pattern & Instruction Control
Verification of pattern version, gauge, and instruction alignment to avoid rework and user confusion.
Training & Workmanship Consistency
Standardized workmanship criteria and ongoing training to keep output consistent across teams.
Environmental & Handling Controls
Cleanliness, humidity/temperature considerations, and WIP handling practices to reduce defects.
- IPQC control plan & checkpoints
- Defect photos and rework records
- Line audit and training logs
- Corrective/preventive actions (CAPA)
- Stable production output
- Deviation containment & correction
- Updated work instructions if needed
- Release to final inspection
Finished Products Final Inspection
Final inspection confirms kit completeness, packaging integrity, and documentation readiness for shipment. Compliance documentation support is provided based on target market and customer program requirements.
Kit Completeness Verification
Content check against BOM, instruction version, and accessory count prior to sealing.
Final Quality Audit (FQC / OQC)
Sampling inspection per AQL or customer standard, including packaging and labeling checks.
Documentation & Traceability Pack
Inspection records, lot mapping, and supporting documents compiled for customer review as required.
User Experience Validation (Optional)
Trial builds or instruction reviews can be arranged to validate clarity and completion success rate.
- FQC/OQC report (AQL-based)
- Kit completeness checklist
- Packing photos (carton/inner)
- Shipment release approval
- Approved for shipment
- Hold / rework / re-inspection
- Documentation package (as required)
- Lot mapping for after-sales trace
Shipment Readiness
Note: Market compliance documentation (e.g., EN71 / ASTM F963 support) is provided per customer program and test scope.
Quality Control FAQ
Common questions from procurement, quality teams, and retail partners.
Do you follow AQL for inspection?
How do you manage batch traceability?
Can you support market compliance documentation (EN71 / ASTM F963, etc.)?
What QC documents can you provide?
Quality Management System
A documented and audited quality management system supporting systematic control, continuous improvement, and consistent delivery.
Process Documentation
Standard procedures and work instructions for each QC step
Performance Metrics
Tracking of inspection outcomes, defects, and corrective actions
Training Programs
Workmanship criteria and training aligned to product standards
Continuous Improvement
Audits, CAPA, and iterative process optimization
ISO 9001 • Third-party audited (where applicable) • 12+ years manufacturing experience
Compliance and testing documentation are provided according to product configuration, target market, age grading, and customer program requirements. We do not make medical or regulatory claims on this page.