Technofibres Luxembourg team and production site – quality, flexibility and sustainability in filament yarn manufacturing
Aerial view of Technofibres Luxembourg production facilities in Mertert – modern yarn manufacturing site surrounded by greenery

About us

Since 1969, Technofibres Luxembourg has been developing and producing high-quality PET and PBT filament yarns in Mertert, Luxembourg. Our customers include knitting mills, weaving mills, warp knitters, braiders and winders around the world. Our filament yarns are used in a wide range of applications — from the automotive and aerospace industries to furniture, apparel, medical technology, military and technical textiles.

Inventive and creative – we make what YOU want.

With a team of 95 dedicated colleagues, extensive know-how and advanced technology, we are fully committed to our mission: to deliver customised top yarn solutions. As a medium-sized company, we maintain flat hierarchies and short communication paths, enabling fast, flexible decision-making and direct collaboration.


Technofibres Luxembourg stands for high-quality, tailor-made filament yarns. Like top chefs, we develop highly individual formulations and use only the finest ingredients to create your Top Yarn.


Our production covers the entire process — from colour preparation and masterbatch formulation to filament extrusion using the melt-spinning process. We texture, twist and steam our yarns to perfection, creating distinctive looks and technical performance. Even the most unusual requests for colours, additives or structures inspire us – challenges welcome!

Top Yarn logo – premium filament yarn brand developed by Technofibres Luxembourg

Our +Plus

Small batches – plenty of flexibility

We offer development and production from as little as 200 kg per order. Benefit from tailor-made solutions perfectly matched to your requirements.

Sustainability in glowing colours

Our dope-dyeing process ensures intense, long-lasting colours with a minimal CO₂ footprint. By integrating pigments and additives directly into the spinning process, no water and only minimal energy are required.

Everything from a single source

Covering the entire yarn manufacturing process from masterbatch onwards enables us to provide end-to-end development expertise. This allows us to meet customer-specific requirements with precision.

A family-run company with a personal touch

The Technofibres team provides dedicated, individual support that is skilled, responsive and solution-oriented. You can count on us — even in critical situations or for warranty issues.

Certified to the highest quality and environmental standards

Regular independent audits guarantee consistent safety, quality and environmental performance throughout the production process.

Overview of Technofibres ISO certifications – ISO 14001, ISO 45001, IATF 16949 and ISO 50001 confirmed by TÜV Rheinland

Certified according to OEKO-TEX® Standard 100, Annex 4, Product Class 1.

OEKO-TEX Standard 100 certificates for Technofibres filament yarns – tested to Annex 4, Product Class 1 by Hohenstein Institutes 25.HLU.67189 and 24.HLU.65413

technofibres s.a.
6, Route du Vin
6688 Mertert
Luxembourg