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Trützschler and EREMA cooperate on inline BCF systems for R-PET

 |  Subj: Press-releses

Trützschler and EREMA cooperate on inline BCF systems for R-PET. After having worked successfully together during the past year, both companies have signed an agreement on the cooperation in the area of reclycled materials, especially of R-PET.

The cooperation covers BCF lines which produce carpet yarns by spinning reclycled polyester or blends of virgin PET chips and recycled flakes. The overall spectrum of products offered includes a VACUREMA Basic Line and secondary components from EREMA which feed the inline connected symTTex spin positions of Trützschler Man-Made Fibers with a high-quality polymer melt.

For cost reasons, recovered secondary raw materials, such as flakes from used PET bottles, have long been a popular commodity in both the plastic and in the fiber industry. Since the quality of the raw material plays a decisive role when spinning thermoplastic polymers, the bottle flakes have to be treated with special care.

EREMA’s VACUREMA technology offers modular solutions with a vacuum reactor, a directly connected single-screw extruder and a high-performance filter for this process step. The high quality of the melt with respect to viscosity (IV value) and purity lays the foundation for top-quality filaments. The upstream processes have little impact on the directly following spinning process, since only small pressure fluctuations occur during backwashing or screen changes.

Trützschler’s R-PET-spinning technology is based on the proven system components for spinning primary chips. The process involves the well-known spin packs and the double-shell godets, the HPc-texturing system and the fully automatic winder. Existing customers will appreciate the use of the same key components for operation of the R-PET plant. The support of process and product development for recycled polyester through process engineering in Winterthur is part of the package.

Last year, Trützschler and EREMA jointly developed a carpet yarn plant for BCF yarns from recycled PET on customer demand. While the reactor, the extruder and the polymer filters were delivered by EREMA, Trützschler Man-Made Fibers was responsible for spinning, drafting and winding. The plant is very flexible, so that both yarns from 100% recycled material or blends with PET primary granules can be spun. The BCF yarns are used for various applications.
Source: Trützschler

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