How Seamless Knitting Improves Flame Retardant Workwear

Seamless knitting technology is transforming the development of flame-retardant (FR) workwear by offering improved garment fit, flexibility, and wearing comfort. When combined with suitable FR fibers, seamless construction provides new possibilities for technical protective knitwear.

1. Improved Comfort and Fit

Seamless knitting creates garments with fewer conventional seams, reducing seam bulk and allowing an ergonomic fit. This helps workers move more comfortably during long working hours.

2. Flexible and Functional Design

Different knitting structures can be engineered into a garment to provide flexibility, stretch, and targeted ventilation. These features are particularly useful for FR base layers worn close to the body.

3. Suitable FR Fiber Combinations

Technical fibers such as modacrylic, cotton, and antistatic fibers can be combined to develop seamless FR knitwear.

For example, a blend of 60% Modacrylic, 39% Cotton, and 1% Antistatic Fiber may be considered for protective base layers. The final garment must be appropriately tested for its intended application.

4. Applications in Protective Workwear

Seamless FR knitting is suitable for developing products such as:

• FR base-layer shirts
• Long-sleeve protective knitwear
• Specialized industrial underlayers
• Technical seamless garments

The appropriate fiber blend and fabric construction depend on the hazards and protection requirements of the application.

5. Protection Requires Proper Testing

Seamless construction alone does not guarantee flame protection. Finished garments must meet the applicable requirements, which may include EN ISO 11612 for protection against heat and flame.

Additional standards may apply depending on the intended use, including IEC 61482-2 for electric-arc hazards and EN 1149-5 for electrostatic properties.

Conclusion

By combining seamless knitting technology with carefully selected FR fibers, manufacturers can develop protective knitwear that balances comfort, fit, and required protective performance.

Keensun develops technical knitted solutions for industrial and protective clothing applications. Contact us to discuss your seamless FR workwear requirements.