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Certifications & Quality

Quality made visible.

Inspection records, AQL checks, and certification-ready documents help global underwear buyers review material safety, fit stability, sewing quality, packaging accuracy, and pre-shipment risk.

Request Quality Documents Factory Story

Quality Control System

Multi-stage inspection from fabric to final shipment.

WEIIRESA sets checkpoints across materials, pre-production samples, first-piece confirmation, inline production, semi-finished pieces, finished products, and pre-shipment AQL inspection.

  1. Fabric and accessory inspectionCheck color, elasticity, weight, hand feel, color fastness, shrinkage, and visible defects.
  2. Pre-production sample confirmationConfirm style, size, process, accessories, packaging, and color standard before bulk production.
  3. First-piece inspectionConfirm the first production piece before each product goes online.
  4. Inline inspectionReview stitching, sizing, symmetry, tension, and process details during production.
  5. Semi-finished inspectionInspect molding, splicing, sewing, heat pressing, and key process nodes.
  6. Finished product inspectionCheck measurement, appearance, thread ends, stains, defects, packaging, and quantity.
  7. Pre-shipment AQL inspectionFinal inspection according to buyer standard or AQL requirement before shipment.

Quality Evidence

Documented materials, samples, and inspection focus.

Eco textile product certification document
Eco textile document reference
Sample room table with underwear patterns and material swatches
Pattern, fabric, and color confirmation
Pink lingerie set sample for size and appearance review
Finished sample appearance review

Testing Support

Common document requests from underwear buyers.

For special orders, WEIIRESA can cooperate with third-party testing or buyer-side inspection requirements where applicable.

Material SafetyComposition, pH value, formaldehyde and related buyer-required material checks where applicable.
Color StabilityColor fastness, color difference review, shrinkage and fabric behavior after washing.
Stretch & StrengthElastic recovery, tensile strength, strap strength, seam strength, and support stability checks.
Fit & Size ControlSize table confirmation, graded size check, cup shape review, band tolerance, and wearing comfort feedback.
Packaging AccuracyCare label, hangtag, barcode sticker, OPP bag, color box, carton mark, and quantity checking.
Third-party InspectionColor fastness, composition, tensile strength, shrinkage, pH value, and OEKO-TEX related testing when buyer requirements apply.

Buyer Risk Reduction

Quality details are confirmed before mass production.

Before Production

Pre-production standard

Confirm size, cup shape, color, material, craft details, trims, packing, and approved sample before bulk production.

During Production

Workshop inspection

Inspect stitching, symmetry, elastic tension, process details, and key nodes continuously to catch issues early.

Before Shipment

AQL and packing check

Review finished product appearance, measurement, quantity, packaging, carton marks, and shipment requirements.