bioPEtex Project for the Development of Bio-Based PE Fibers

1. March 2026 – BB Engineering is participating in the bioPEtex research project to develop textiles made from 100% bio-based polyethylene (PE). The project, funded by the Federal Ministry of Research, Technology, and Space, is being carried out in collaboration with RWTH Aachen University and other industry partners.

The goal is to make PE — which has hardly been used in the chemical fiber industry to date — suitable for textile applications and to develop environmentally friendly and economically viable textiles. BB Engineering is contributing its expertise in spinning and texturizing and is developing the texturizing process for industrial-scale production. This process step is crucial for the fibers’ subsequent textile performance.

Technically, PE offers several advantages. The material is very lightweight yet chemically resistant and abrasion-resistant. Due to its structure, it also exhibits water-repellent and quick-drying properties, which is particularly relevant for functional textiles. The clear polymer structure also opens up prospects for good recyclability. Processing, however, poses special challenges. PE crystallizes even at low temperatures, resulting in a narrow process window for spinning and texturing.

The project involves the development and scaling of spinnable bio-PE compounds, melt spinning processes, and false-twist texturing methods, among other things. Initial results are already promising. The bio-PE yarns show suitable mechanical properties and provide a comfortable, cooling feel. As a first milestone, the partner FALKE has already produced a white prototype t-shirt.