40S/2 Fluorescent Yellow Meta‑Aramid Sewing Thread is spun from 100% meta‑aramid staple fiber with inherent flame‑retardant performance. No chemical flame‑retardant coating or finishing is added during production, so its flame‑resistant property will not fade after washing.
The bright fluorescent yellow (high‑visibility yellow) shade satisfies the color requirements of EN ISO 20471 high‑visibility safety clothing. It achieves outstanding color fastness to washing and light, keeping vivid appearance for long‑term service of protective garments. With 40S/2 two‑ply construction, the thread features low lint and smooth feeding, running stably on high‑speed industrial sewing machines for mass PPE production. Under flame contact, it performs self‑extinguishing, non‑melting and non‑dripping, and maintains reliable seam strength after multiple laundering cycles. It also offers good tolerance to high temperature, weak acid, weak alkali and common organic solvents.
Key Features
100% meta‑aramid staple fiber, inherent flame retardant, LOI ≥29%, self‑extinguishing, no melt‑drip
Fluorescent high‑visibility yellow, compliant with EN ISO 20471 color requirement, excellent color fastness to wash & light
Ne 40S/2 yarn count, low lint, smooth stitching, good runnability for industrial high‑speed sewing equipment
Stable seam performance after repeated domestic & industrial laundering, flame retardancy will not decline
Good heat‑resistant, anti‑abrasion performance, resistant to weak acid, weak alkali and organic solvents
