Inside a Knitwear Factory: Step-by-Step Production Overview

Step-by-step knitwear factory process, from fabric inspection to final shipment, helping brands understand production, improve quality control, and ensure reliable delivery timelines.

Author & Source

Author: Connor Ma, International Trade Analyst with 10+ years of experience in knitwear manufacturing and global apparel supply chains Reviewed by: SML Intimate Production & QC Team Published by: SML Intimate Manufacturing Insights

Introduction

Understanding how a knitwear factory operates is essential for brands sourcing apparel globally. From fabric inspection to final shipment, every stage in the production process directly affects garment quality, consistency, and delivery timelines.

Based on real factory operations and quality control practices, this guide provides a step-by-step overview of knitwear manufacturing inside a professional production facility.

Step 1: Fabric Inspection & Testing

Production begins with strict raw material inspection.

Key checks include:

Fabric weight (GSM)

Composition accuracy

Color consistency

Shrinkage rate

Surface defects

For knit fabrics, shrinkage testing is particularly critical before bulk cutting to avoid size inconsistencies after washing.

Working with an experienced custom knitwear manufacturer ensures proper fabric testing and quality control at the earliest stage.

Step 2: Pattern Preparation & Marker Making

After sample approval, production preparation begins.

Key processes:

Pattern grading across all sizes

Marker creation to optimize fabric usage

Fabric consumption calculation per garment

Efficient marker planning helps reduce fabric waste and control production costs.

Step 3: Fabric Cutting

Before cutting, fabric must be properly prepared.

Key steps:

Fabric relaxation (essential for knit materials)

Layering based on order quantity

Precision cutting using industrial machines

Accuracy in cutting ensures consistency across all units in bulk production.

Step 4: Sewing Line Assembly

Garments are assembled through a structured production line.

Typical operations include:

Shoulder joining

Sleeve attachment

Side seam overlocking

Rib collar and cuff attachment

Double-needle hemming

Each operator focuses on a specific process, improving efficiency and maintaining consistent quality. A reliable OEM apparel manufacturer will standardize these operations to reduce errors.

Step 5: In-Line Quality Control

Quality control is implemented throughout production, not just at the end.

Inspectors check:

Stitch density

Seam strength

Measurement accuracy

Overall construction consistency

Early-stage inspection helps prevent large-scale defects and reduces rework costs.

Step 6: Washing & Finishing

Depending on product requirements, garments may undergo finishing processes such as:

Enzyme washing

Garment dyeing

Brushing or fleece finishing

After washing:

Garments are dried

Pressed or steamed

Thread-trimmed

These processes ensure proper hand feel, shrinkage control, and final appearance.

Step 7: Final Inspection

Before packaging, garments go through final quality checks.

Includes:

Random AQL inspections

Measurement verification

Visual appearance checks

Only approved products proceed to packing, ensuring consistency and compliance with buyer requirements.

Step 8: Packing & Shipment

The final stage prepares goods for delivery.

Processes include:

Folding based on brand standards

Applying labels and hang tags

Carton packing

Export documentation preparation

Lead time depends on order size, product complexity, and logistics arrangements.

Why Understanding the Production Process Matters

Brands that understand factory workflows gain significant advantages:

More accurate production planning

Better communication with suppliers

Reduced errors and delays

Stronger long-term partnerships

Transparency in manufacturing builds trust and improves collaboration.

Conclusion

Knitwear manufacturing is a structured, multi-stage process requiring coordination across sourcing, production, and quality control teams.

From fabric inspection to final shipment, every step plays a critical role in ensuring product quality and brand reputation.

Choosing a factory with standardized processes and strong quality management systems ensures consistent results and reliable delivery.

Get a Quote

Looking for a reliable partner for knitwear production? Contact us today to work with an experienced custom clothing manufacturer for sampling, bulk production, and global shipping support.