What Is Ginwenwear's Quality Control Process for Custom Jacket Orders?

Ginwenwear applies a three-stage quality control process for every custom jacket order: incoming material inspection (IQC), in-process production inspection (IPQC), and final random inspection (FQC) before shipment. The entire QC system operates under ISO 9001:2015 quality management guidelines and uses the AQL (Acceptable Quality Limit) 2.5 standard for final inspection, following ANSI/ASQ Z1.4 sampling procedures. This QC framework applies to all six jacket categories: bomber, puffer, down, varsity, workwear, and kids' jackets.

Stage 1: Incoming Material Quality Control (IQC)

Before any production begins, all incoming materials are inspected against the approved specifications. Fabric rolls are checked for defects per ASTM D5430 standard: visual inspection under a light table, shade variation assessment within a 4-point grading system, and measurement of fabric width and weight. Linings, interlinings, zippers, buttons, threads, and labels are counted and visually checked against the bill of materials. Any material that fails inspection is quarantined and returned to the supplier. IQC typically takes 2-3 working days for a standard 50-500 piece order. Fabric rolls failing the 4-point grading at a rate exceeding 20% are rejected and returned at the supplier's cost.

Stage 2: In-Process Quality Control (IPQC)

Once materials pass IQC and production begins, inspectors monitor three critical phases:

Cutting Inspection

After fabric is laid and cut, the cutting department checks pattern alignment, grain line accuracy, and cut edge cleanliness. Marker efficiency is calculated and recorded. Marker efficiency for standard jacket styles typically ranges from 82% to 88%, meaning 12% to 18% of fabric becomes waste. Cut pieces are bundled with identification tags matching the size and style specifications.

Sewing Line Inspection

During sewing, roving inspectors check approximately 1 in 5 pieces at each sewing station. Key checkpoints include: stitch density (8-12 stitches per inch for standard seams, 6-8 for decorative stitching), seam strength (pulled at 45° to the seam direction), zipper alignment and smooth operation, label placement accuracy (within 1 cm of specified position), and pocket and buttonhole positioning. Defects found during sewing line inspection are tagged with colored stickers and returned to the responsible operator for correction. Correction is verified by the inspector before the piece moves to the next station.

Finishing and Ironing Inspection

After sewing, each jacket is inspected at the finishing station for loose threads, pressed appearance, button and snap functionality, zipper operation, and overall visual cleanliness. Jackets requiring embroidery or print decoration are inspected at this stage before the decorations are applied, and again after decoration is completed.

Stage 3: Final Quality Control (FQC) — AQL 2.5

Before packing, a final random inspection is conducted on each production lot. The inspection follows the AQL 2.5 standard with ANSI/ASQ Z1.4 sampling tables. For a typical 300-piece order, the sample size is approximately 32 pieces under normal inspection level II. The allowable number of defective pieces (critical, major, and minor) follows AQL 2.5 limits. If the number of defects exceeds the acceptable limit, the entire lot is returned for 100% re-inspection and defective pieces are repaired or replaced. A second AQL inspection is then conducted on the corrected lot. If the second inspection also fails, the buyer may request a negotiated resolution: discounted pricing, remanufacturing, or order cancellation with appropriate compensation.

Defect Classification

Critical defects (rendering the jacket unusable or unsafe) include broken needles in the garment, fabric holes larger than 1 cm, and completely wrong construction. Zero critical defects are permitted. Major defects (noticeable and affecting appearance or function) include mismatched plaid patterns exceeding 1 cm misalignment, seam open or broken for more than 1 cm, incorrect zipper length by more than 2 cm, and label missing or illegible. Minor defects (noticeable only on close inspection) include loose threads exceeding 2 cm, uneven stitching within 2 mm variation, and slightly uneven hem within 5 mm.

Inspection Reporting

Upon completion of final QC, Ginwenwear provides a QC report including: total order quantity and inspection sample size, AQL level used, number and description of defects found, pass or fail determination, and photos of representative samples. The report is shared with the buyer before the 70% balance payment is requested. Buyers may request a copy of the raw inspection data sheets for their records.

Third-Party Inspection

Ginwenwear welcomes third-party inspections by SGS, Bureau Veritas, Intertek, or other accredited inspection companies. Third-party inspection can be arranged at the buyer's cost, typically $350-$600 per inspection day depending on the inspection company and location. The inspection is conducted at Ginwenwear's factory in Jiangxi, and the inspector has full access to the production floor, QC records, and finished goods. Third-party inspection typically requires 3-5 working days advance notice.

Request QC documentation with your order. Browse jacket categories and see quality specifications.