From the Sector

International technology group ANDRITZ has installed a new spunlace pilot line at its center of competence in Montbonnot, France. It allows customers and partners to conduct trials for producing nonwovens from recycled and/or natural fibers such as hemp, flax, and cotton.

The new pilot line features optimized web forming and entanglement for smooth processing of sensitive and irregular fibers. The innovative card set-up is designed to protect and maintain the quality of the fibers while achieving outstanding productivity rates.

Another special feature of this pilot line is the integrated ANDRITZ Metris digitalization system. It allows the operators to collect and analyze all useful data about the line’s capacity and performance. This is a perfect tool for optimizing costs, saving time and predicting maintenance.

With the new line, the ANDRITZ Nonwoven team now operates two spunlace pilot lines at the Montbonnot technical center. The first line has optimized processes, for instance WetlaceTM, for processing various synthetic and man-made fibers. ANDRITZ process experts ensure that advanced technology and know-how are available under one roof at Montbonnot.

Korteks, one of the world’s biggest yarn producers based in Bursa, Turkey, has started the production of recycled polyester filament yarn in its production facility using a Starlinger recycling line.

With the new recycling facility, which comprises a total closed area of 17,000 m² and has a monthly production capacity of 600 tons, Korteks was able to reduce the production waste at its virgin PES yarn site to zero.

The Starlinger recoSTAR universal 165 H-VAC iV+, which is part of Korteks’ 10 million dollars investment in a new polymer recycling facility, took up operation in May 2021. It has a production capacity of 7,200 tons per year and currently processes clean in-house polyester fibers from production scrap together with washed post-consumer PET flakes at a ratio of 50/50. Korteks uses the polyester regranulate at a share of 100 % for its new polyester filament yarn line it is going to market under the name “TAÇ Reborn”. With this investment, the company has made an important step towards establishing a circular economy in the Turkish textile industry.

The Starlinger recycling line is the first of its kind in Turkey and is equipped with special components for filament yarn recycling. A RSC (Rapid Sleeve Changer) candle filter developed by Starlinger ensures finest melt filtration down to 15 μm. It has been specially designed for polyester recycling and reaches an output of 1000 kg/h. For continuous operation the filter elements are changed “on the fly” without interrupting production, which significantly limits melt loss.

The viscoSTAR SSP unit at the end of the recycling process guarantees consistent IV increase according to the first-in-first-out principle. This makes sure that the produced regranulate has the ideal properties required for filament yarn production. The technical configuration of the line does not only allow the processing of a polyester fiber/PET flake mix as input materials, but also 100 % polyester filament scrap or 100 % PET bottle flakes.

Korteks expects the recycling market in general to grow as there is increased acceptance for recycled products in the society, and predicts the need for recycling solutions also for other synthetic and natural fibers.