From the Sector

Mountains of waste, plastic-infested oceans, negative CO2 footprints – the need for more sustainable ways of living has never been more urgent. Consequently, it is logical that recycling solutions are becoming increasingly important within the textile industry. This was also tapped into at the first virtual Global Fiber Congress in Dornbirn with a session that focused specifically on the topic. In front of around 400 participants, Markus Reichwein, Head of Product Management at Oerlikon Barmag, also spoke about solutions currently on the market.

As one of only manufactureres, the Oerlikon Group’s Manmade Fibers segment offers the entire mechanical recycling chain –from preparing the recycled materials, producing the melt all the way through to the textured package. Here, the company utilizes the VacuFil solution supplied by its subsidiary Barmag Brückner Engineering (BBE) –which, in addition to mastering bottle-to-bottle and bottle-to-textile processes, is also able to process textile waste into chips. This permits the running of textile production operations very much in line with the zero-waste philosophy.

VacuFil ensures a stable process in the case of recycled quality yarns
The reliable removal of contaminants is vital for a stable and efficient spinning process and outstanding yarn quality. At the same time, stable operating conditions with minimal fluctuations are essential. The greatest challenge here is the differing qualities of the bottle flakes fed into the system, as the extrusion process is barely able to balance these fluctuations. Here, the VacuFil concept counters with blending silos, which reduce the differences in the viscosity of the polymers considerably and guarantee high yarn and fabric quality.

The VacuFil concept is installed upstream to an Oerlikon Barmag POY system, which transforms the recycled melt into filament yarn of the accustomed high quality. As texturing solutions, Oerlikon Barmag offers its state-of-the-art automatic eAFK-series systems, including the latest generation of the eAFK Evo, which was unveiled at the ITMA Barcelona last year. Yarn manufacturers wishing to continue texturing manually can use the eFK series.

With the VarioFil R+, producers of smaller batches now also have a compact system with an integrated recycled materials preparation unit at their disposal. The system offers a special extrusion system for bottle flake materials, the very latest metering and mixing technology for spin-dying and expanded 2-stage melt filtration. The four spinning positions are each equipped with an Oerlikon Barmag 10-end WINGS POY winder.

While mechanical recycling has already been extensively developed, chemical recycling for mixed fabrics is still presenting the textile industry with huge challenges. The Oerlikon Group’s Manmade Fibers segment is currently working on solutions and concepts for transforming these fabrics into new textiles.

Rester Oy, which is developing the plant in Paimio, recycles companies' end-of-life textiles, and Lounais-Suomen Jätehuolto Oy (LSJH), which will hire a production area at the same facility, processes households' end-of-life textiles. The plant will process 12,000 tonnes of end-of-life textiles every year, which represents about 10% of Finland’s textile waste.

The textile industry’s end-of-life textile problem is intolerable. Natural resources are increasingly used to manufacture products, but these materials are lost at the end of their life cycle. About 100 million kilograms of textile waste are generated annually in Finland alone. Reusing this material could reduce the textile industry’s carbon footprint and significantly reduce the use of natural resources.

Rester Oy and LSJH will drive the textile sector towards a circular economy and begin processing textile waste as an industrial raw material. The Nordic countries’ first industrial end-of-textile refinement plant will open in Paimio in 2021. The 3,000-square-metre plant is being developed by Rester Oy, which recycles companies' end-of-life textiles and industrial waste materials. LSJH, which processes households’ end-of-life textiles on its production line, will hire part of the plant.

Outi Luukko, Rester Oy’s board chair, says, “The processing plant will begin a new era of textile circular economy in Finland. As industry pioneers, we are launching a system change in Scandinavia. The transition of the textile industry from a linear model to a circular economy is essential, as virgin materials cannot sustain the current structure of the textile industry. And why should it, when there is so much recyclable material available?”

From the perspective of Rester Oy’s main owner, work clothing supplier Touchpoint, the circular economy plant not only represents resource efficiency, but is also necessary from the perspective of the entire life cycle of a responsible work clothing collection.

Luukko adds, “Finding a local solution to a global problem is a huge leap in the right direction and raises Finland's profile as a pioneer of circular economy."

The future plant will be able to process 12,000 tonnes of end-of-life textiles annually, which represents about 10% of Finland’s textile waste. Both production lines produce recycled fibre, which can be used for various industrial applications, including yarn and fabric, insulating materials for construction and shipping industries, acoustic panels, composites, non-woven and filter materials, and other technical textiles, such as geo-textiles.

LSJH is piloting a full-scale refinement plant

LSJH has launched a pilot production line for processing households' end-of-life textiles. Unfortunately, consumers' end-of-life textiles are heterogeneous, making them a challenging raw material for further processing. Before processing, the textiles are sorted by material into various fibre classes using optical identification technology developed by LSJH and its partners. This ensures the quality of the raw material and the resulting fibre products.

Jukka Heikkilä, managing director for Lounais-Suomen Jätehuolto, explains: “On the basis of the experiences gathered from the pilot project, Lounais-Suomen Jätehuolto is preparing a full-scale refinement plant in the Turku region. As soon as 2023, the plant will process Finnish households' end-of-life textiles. The project involves all waste treatment plants owned by Finnish municipalities.”

Paimio has ambitious goals for circular economy companies

Rester’s initiative aims to create a circular economy cluster in Paimio that combines the processing and reuse of end-of-life textile fibres. Paimion Kehitys Oy, which is owned by the City of Paimio and the local association of enterprises, supports the development of circular economy companies in Paimio.

Mika Ingi, managing director for Paimion Kehitys Oy, says, “We want to step out of our traditional municipal role and create significant added value for everyone taking part. That is why we are involved in the development of a new modern service model based on ecosystem thinking. We are piloting the textile cluster, followed in the coming years by clusters focusing on plastic, construction, and energy. The aim of our service is to support and help develop new profitable business by bringing circular economy companies and their potential customers to innovate together."

The foundation stone of the processing plant was laid today (18 August 2020). The processing plant will begin operations in February 2021.

• New 20,000 ton Lyocell line commences production in Shandong

Sateri has successfully commenced production of Lyocell fibre in Rizhao, Shandong, China. In collaboration with Asia Symbol, China’s leading producer of pulp and packaging board, the newly installed 20,000 ton per annum production line will broaden Sateri’s portfolio of high quality fibre products, and bolster Lyocell supply to the textile and non-woven markets.

Industry associations such as the China National Textile and Apparel Council (CNTAC) welcome the news. Duan Xiaoping, Deputy President of CNTAC and President of the China Chemical Fibers Association (CCFA), said, “Lyocell is not only a higher value product but also an eco-friendly fibre that is bio-based and minimises chemical use and emissions. Sateri’s investment in Lyocell is very much aligned with the aim for technical and product upgrading for China’s textile industry.”

A natural and biodegradable fibre, Sateri’s Lyocell is made from wood pulp sourced from sustainable plantations. It is manufactured using closed-loop technology, requiring minimal chemical input during the production process, and utilising an organic solvent that can be almost fully recovered and recycled. Lyocell is used to produce high quality textiles and personal hygiene materials. Textiles made from Lyocell possess high tenacity and bright lustre, and share similar qualities with textiles made from viscose – soft and silky with good drape, breathability, and absorption.

Sateri is part of the RGE group of companies which has committed to investing USD200 million to advance next-generation textile fibre innovation and technology. In March this year, Sateri achieved a breakthrough in commercial production of viscose using recycled textile waste.

Schoeller, the global textile solutions manufacturer dedicated to sustainability and innovation for more than 150 years, introduces its new PROEARTH™ collection of biodegradable textiles. The new collection, comprised of bluesign® approved fabrics with biodegradable polyester, will debut as part of its Schoeller FTC (SFTC) line, a joint venture between Schoeller Textil AG and the Taiwanese Formosa Taffeta Co. Ltd., at Premiere Vision Paris, September 17-19, Hall 6, Stand 6J18.

As the founding developer of the bluesign® system, the first activewear and leisurewear manufacturer to receive Oeko-Tex Standard 100 certification, and one of the first companies to sign the UN’s Paris Agreement for climate change, Schoeller continues to be on the cutting edge of sustainable practices, bringing one of the first collections of biodegradable synthetic fabrics to the market. Its most recent development, PROEARTH was created to help offset the more than 16 million tons of textile waste produced in the US alone each year.

Jacket, pant and lining fabrics
The SFTC PROEARTH collection will launch with five, bluesign®-approved fabrics designed for lifestyle, fashion and outdoor categories. Made with virgin polyester that has been optimized for biodegradation and has tested to biodegrade at faster and better rates than competitive offerings, the initial PROEARTH articles available this fall include jacket, pant and lining material qualities with various colour options.