30s/1 Ring Spun Polyester Yarn for Socks Fabrics

Product Overview

Our 30s/1 Ring Spun Polyester Yarn is engineered specifically for high-performance socks, combining exceptional strength, superior breathability, and all-day comfort. The ring-spun process—where fibers are twisted and condensed into a tight, uniform strand—creates a yarn with minimal surface imperfections, reducing friction against the skin and enhancing wear resistance. This makes it a preferred choice for premium sock manufacturers, as it maintains shape, color, and structural integrity even after rigorous daily use and repeated washing.

Product Specifications

Material: 100% virgin polyester (FDA-approved for direct skin contact, free from harmful additives)

Yarn Count: 30s/1 (fine thickness, ideal for lightweight, breathable fabrics with a smooth finish)

Twist Level: 80–120 TPM (turns per meter), calibrated for optimal elasticity and shape retention

Color Fastness: ISO 105-B02 rating of 4–5 for UV resistance, ensuring colors resist fading even with prolonged sun exposure

Shrinkage Rate: <3% (after 10 wash cycles at 40°C), guaranteeing consistent fit over time

Certifications: OEKO-TEX® Standard 100 (Class II) and fully REACH compliant (free from 200+ restricted substances)

Product Features

Stretch & Recovery: The engineered twist profile ensures socks retain their original shape and elasticity after 50+ washes, outperforming conventional yarns by 25% in durability tests.

Odor Control: Low moisture absorption (<0.5%) prevents the buildup of sweat and bacteria, significantly reducing unpleasant odors even during extended wear.

Seamless Knitting Compatibility: Uniform thickness and minimal hairiness ensure smooth processing on high-speed seamless knitting machines, reducing production downtime.

UV Protection: UPF 50+ rating blocks 98% of harmful UV rays, making it ideal for outdoor and travel socks where sun exposure is frequent.

Applications

Activewear: Essential for compression socks, running socks, and cycling socks, where moisture management, breathability, and support are critical for performance.

Medical Use: Trusted in diabetic socks and orthopedic hosiery due to its non-irritating, hypoallergenic properties and consistent fit that avoids pressure points.

Fashion Socks: Used by designer brands for intricate patterns, jacquards, and vibrant colors, as its uniform texture ensures sharp design definition.

FAQ

Q: Does this yarn maintain its elasticity after repeated washing?

A: Yes. It retains over 90% of its original elasticity after 50 wash cycles, thanks to its optimized twist structure and high-quality polyester fibers.

Q: Can it be used for seamless socks, and what needle size is recommended?

A: Absolutely. Its uniform thickness supports seamless knitting technology, with optimal results using 30–32 gauge needles for fine stitch definition.

Q: What is the shelf life, and how should it be stored?

A: When stored in cool (15–25°C), dry (relative humidity 40–60%) conditions away from direct sunlight, the yarn has a shelf life of 24 months.