In the garment industry, whether you are a manufacturer, importer, or brand, you must understand the importance of quality control in this business. This industry shifts swiftly, and any time lost in shipment or defect fixings can lead to unimaginable losses. Moreover, quality issues can quickly disseminate in the digital age, giving competitors an advantage. Therefore, quality control is essential, and quality inspection is the most commonly used method. In this post, we will guide you through the steps of a garment quality inspection, the key checkpoints to focus on, and how can C&Z expertise support your garment quality control.
In the competitive knitwear industry, consistent quality control (QC) separates premium garments from defective batches. As a third-party garment QC provider, C&Z Quality Control Services delivers rigorous inspections for round neck cardigans, safeguarding brands against costly recalls and reputational damage. This article outlines our 360° inspection methodology, aligned with ASTM, ISO 2859, and AQL 2.5 standards.
Key Inspection Parameters for Round Neck Cardigans
C&Z’s QC engineers evaluate 38+ critical checkpoints during knitwear quality inspections:
1. Fabric & Construction Defects
Yarn Imperfections: Detect slubs, knots, or uneven spinning via ISO 2060 tensile testing
Stitch Consistency: Verify 18-gauge knitting density using digital loupes (10x magnification)
Seam Strength: Apply 15N force to shoulder/side seams per ASTM D1683
2. Dimensional Accuracy
Tolerance thresholds:
Collar stretch ≤ 1.5cm after 3 wash cycles (AATCC 135)
Hemline deviation ≤ 0.3cm from tech pack specs
Sleeve length variance ±0.5cm
3. Functional & Aesthetic Checks
Button/Closure Testing: 50x open/close cycles for durability
Color Fastness: Grade 4+ on gray scale after crocking (AATCC 8)
Pilling Resistance: 3+ rating after 5,000 Martindale rubs
C&Z’s 4-Stage Inspection Process
Pre-Production Audit
Validate yarn certificates (GOTS, OEKO-TEX®)
Approve lab dip reports against Pantone TPX
During Production Monitoring (DUPRO)
Weekly checks for:
Knitting machine calibration
Dye lot consistency
WIP defect rate (<3%)
Final Random Inspection (FRI)
AQL 2.5 sampling: 200 units from 5,000pcs lot
100% metal detection scan
Pre-Shipment Verification
Barcode-tracked packaging compliance
Hangtag/logo placement ±2mm accuracy
Common Defects Identified in Cardigan QC
Defect Type Industry Average C&Z Detection Rate
Uneven collar stretching 12% 99.7% Misaligned buttonholes 8% 100% (AI pattern recognition)
Shade variation 15% 98.5%
Why Choose C&Z for Knitwear Inspections?
AI-Powered Tools: Computer vision systems detect 0.2mm stitching deviations
Global Coverage: 200+ QC experts across 15 knitting hubs (China, Bangladesh, Turkey)
Certifications: ISO 17025-accredited labs, Intertek/SGS equivalency reports
Free Resources:
[Download] Round Neck Cardigan QC Checklist (PDF)
[Calculator] AQL Sampling Size Tool
Take Action Now
Book a free pilot inspection for your next cardigan order:
Visit cz-quality.online
Upload tech pack & production schedule
Receive report within 48 hours