From the Sector

DyStar, a specialty chemical company, announces its latest innovation, Eco-Advanced Indigo Dyeing.

The launch of DyStar’s Eco-Advanced Indigo Dyeing aims to reduce water usage by up to 90% and energy consumption by up to 30% during the production process. The new DyStar’s Eco-Advanced Indigo Dyeing is applicable in the Indigo traditional dyeing process, for Sulphur dyes, and colored Denim. The technique of sustainable indigo dyeing has already been proven to reduce substantially the effluent load in Denim production.

DyStar’s eco-friendly indigo dyeing process is recognized for helping customers deliver better consistency in quality while achieving less wastewater treatment in the effluent.

Adient, a leading supplier of automotive seating systems, has achieved full ISCC PLUS (International Sustainability & Carbon Certification) of its foam plants in Lučenec (Slovakia) and Mandling (Austria) for increasing the sustainability of foams produced for its automotive seating systems. The stringent global sustainability certification system of ISCC allows for proven enhanced traceability of circular polyurethane (PU) foams throughout the supply chain.
 
The environmental impact of the newly developed PU formulations and processes of molded foams is improved by the re-integration of waste materials from industrial & natural origins replacing crude oil into the PU raw materials. This reduces the use of fossil-based materials in favor of recycled materials, to foster the development of a circular economy. As a result, the plants can offer foams with up to 20% less CO2 impact while fulfilling the same quality requirements as their conventional equivalents. To date, Adient is the first European ISCC PLUS certified PU foam manufacturer in this field.

Based on a mass balance approach, the certification highlights the need to envi-ronmentally balance every single stage of automotive value creation, including the entire supply chain.

"ITA Aachen and ITA Augsburg are part of the ITA Group International Centre for Sustainable Textiles. Experience our textile innovations at two exhibition booths," explains ITA Institute Director Professor Dr. Thomas Gries. "See our ring spinning tester at booth H3-B304, which spins recycled fibres sustainably and individually in a previously impossible fineness. In addition, there is digital yarn monitoring, which enables new market potentials. Get an idea of the Recycling Atelier of ITA Augsburg at booth H3-A207 and see the textile cycle from used textile to solution steps for industrial implementation together with industry partners. Join us on the Walk4Recycling and follow the path from used textile to a new knitted pullover on a tour of the trade fair. This is how we live up to our claim as the ITA Group: sustainable - digital - individual."

ITA Aachen - Digital ring spinning tester for recycled fibres enables spinning of fine yarns with high recycled fibres content
The Institut für Textiltechnik of RWTH Aachen University (ITA) will be exhibiting a digital ring spinning tester, which spins recycled fibres directly and conventionally with a particularly high content of 60-70 percent. Up to now, recycled yarns have mainly been rotor-spun in this blend ratio. This results in rather coarse yarns and is not suitable for finer textiles such as outerwear. Ring spinning of recycled yarns now enables the spinning of finer yarns and thus a higher application level for recycled materials.

A unique selling point of the ITA ring spinning tester is the simultaneous spinning in the direct spinning process from the sliver and in the classic ring spinning process. For this purpose, the strength and elongation of the spun yarn are determined online and digitally for the first time. The real-time measurement allows process parameters and yarn properties to be adjusted iteratively and quickly. The ring spinning tester was upgraded from an existing tester to Industry 4.0 standard and is operated via a tablet. Operation via tablet enables the adjustment of process parameters including online quality monitoring remotely from anywhere in the world.
 
For this purpose, the ring spinning tester is also able to produce fine ring spun yarns. These yarns made from recycled material opens up a multitude of further fields of application for woven and knitted goods. Now, for example, clothing and technical textiles can be made from recycled material, the production of which was not possible before - such as outerwear made from recycled material. The development of new industries and fields of application opens up new market potential for recycled yarns - also and especially for processing in Europe. This creates the opportunity to preserve key technologies and jobs in cost-intensive locations.

ITA Augsburg - Recycling Atelier: Walk4Recycling
The Recycling Atelier of the Institut für Textiltechnik Augsburg gGmbH on stand H3-A207 presents the textile recycling from used textiles into new products via the various process steps and, together with the industrial partners, opens up solution paths for industrial implementation.

Under the headline "Walk4Recycling", a tour of the fair shows the cycle of used textiles from used knitwear into a new knitted pullover via a ring yarn made from a blend of 65 percent recycled cotton and 35 percent virgin polyester. The key innovation here is the high proportion of recycled fibres from post-consumer textiles for a ring yarn of this fineness. Today, mainly coarse rotor yarns for low-quality textiles are spun from these materials. The industrial partners participating in the Walk4Recycling are partners of the Recycling Atelier and contribute with their technologies to the fact that fibre material from old clothes can be processed in various process stages into a yarn of new value and high-quality ready-made garments.

The Walk4Recycling offers visitors the opportunity to experience a complete recycling cycle with the numerous process stages from tearing the old textiles, preparing and spinning the fibres and knitting a new jumper live during the fair. Get detailed information on the mechanical recycling of clothing via QR code, website and flyer about the participating exhibitors and their machines and technologies. A short movie will give you additional insights into the various processes involved in the production of the jumper.

International technology group ANDRITZ entered a partnership with Pellenc ST and Nouvelles Fibres Textiles to set up the very first industrial-scale automatic textile sorting line in France combining automated sorting and recycling technology.

The partners have expert knowledge in sorting technologies (Pellenc ST), textile machinery and processes (ANDRITZ), as well as post-consumer textile value chains from sorting to manufacturing (Nouvelles Fibres Textiles newly founded by Les Tissages de Charlieu and Synergies TLC).

The new textile sorting line being built is the first to combine Pellenc ST's automated sorting technologies with ANDRITZ’s recycling technologies. It will process post-consumer textile wastes to produce recycled fiber engineered for the spinning, nonwoven and composite industries. Starting operations in mid-2023, it will serve as a production line for Nouvelles Fibres Textiles, as an R&D line for the three partners, and as a test and demonstration center for their customers.

Nouvelles Fibres Textiles aims to become a reference in both industrial grade material production and industrial scale post-consumer textile sorting, thanks to innovative technologies with hard point removal providing pure fibers, selective colors, and differentiated fiber types.

Nouvelles Fibres Textiles’ partners also work closely together in R&D at the ANDRITZ Laroche and Pellenc ST technical centers to keep pushing technical boundaries.

At ITMA 2023 in Milan from June 8-14 this year, Monforts is organising two free-to-attend seminars and discussions on the potential of green hydrogen as a new energy source for textile finishing, drying and related processes.

Monforts is currently leading a consortium of industrial partners and universities in the three-year WasserSTOFF project, launched in November 2022, that is exploring all aspects of this exciting and fast-rising new industrial energy option.
The target of the government-funded project is to establish to what extent hydrogen can be used in the future as an alternative heating source for textile finishing processes. This will first involve tests on laboratory equipment together with associated partners and the results will then be transferred to a stenter frame at the Monforts Advanced Technology Center (ATC).

To be considered “green”, hydrogen must be produced using a zero-carbon process that is powered by renewable energy sources such as wind or solar. Currently, the cleanest method of hydrogen production is electrolysis, using an electrically-powered electrolyzer to separate water molecules into hydrogen and oxygen. The purity of the hydrogen is also important, and impurities must be removed via a separation process.

“Despite all its advantages, there are obstacles to overcome on the way to widespread, economically-feasible green hydrogen use,” explains Monforts Textile Technologies Engineer Jonas Beisel. “Until there are widely available, reliable and economical sources of this clean power, the cost of producing it will remain prohibitive. The infrastructure is not yet there, and hydrogen also has a tendency to make steel brittle and subject to fracture, which is something that requires further investigation in both its transportation and use in industrial processing.
“Green energy’s potential as a clean fuel source is tremendous, but there is much we need to explore when considering its use in the textile finishing processes carried out globally on our industry-leading Montex stenter dryers and other machines.”

At its Advanced Technology Center (ATC) in Mönchengladbach, Monforts will be carrying out intensive tests and trials to assess the reliability of both processes and final products when different natural gas and hydrogen mixtures – up to 100% green hydrogen – are employed. The results will be closely analysed by the consortium partners because there are many parameters that at this stage remain unknown.

The aim, Beisel adds, is to both reduce CO₂ emissions and – following the rising prices and industry turbulence experienced by manufacturers over the past year or so – to further reduce a dependency on natural gas.

The three-year WasserSTOFF project is sponsored by Germany’s Federal Ministry for Economic Affairs and Climate Action, and with Monforts at the helm brings together industrial partners Pleva and NTB Nova Textil, with academic input from the Hochschule Niederrhein and the Technical University of Freiberg.

REVECOL® (Recycled Vegetable Cooking Oil) represents a new generation of textile chemical auxiliaries, which are high-performing and obtained from vegetable exhausted cooking oil.

Chemical auxiliaries play a crucial role in several stages of the textile production cycle, from material preparation to dyeing and finishing, but represent a complex challenge from the point of view of reducing environmental impact. Herein lies the revolutionary aspect of REVECOL® by ERCA: for the first time, not just one product, but a complete range of auxiliary chemicals is available that meets the criteria of circularity.

The result of ERCA's continuous research, REVECOL® are in fact born from critical waste materials (exhausted vegetable oils), which, thanks to an environmentally and safety-friendly manufacturing process, are transformed into a line of innovative chemical auxiliaries destined for the entire textile industry and its various applications: from underwear to home textiles.

EVECOL® by ERCA has obtained several certifications – GRS, RCS, listed into ZDHC Chemical Gateway, bluesign® and GOTS, and are also finalizing the third-party certified PCF (Product Carbon Footprint), - as well as various international recognitions – first prize RESPONSIBLE CARE®, in Italy, from Federchimica, inclusion in the BAT (Best Available Techniques) document from the European Community.

Fibre Extrusion Technology Ltd (FET) of Leeds, UK participated in the “Green Textile and Innovation Technology Forum and Exhibition” in Hong Kong, taking a small booth to support the event and FET’s official agent in the region, Chemtax. This was the first in a series of international exhibitions that FET will be attending in 2023.

The interactive exhibition was organised by the Hong Kong General Chambers of Textiles, with over 20 industrial experts and 300 guests in discussion forums and meetings. The major themes explored were sustainable solutions, new technologies and future trends in green textiles. The region is committed to improved sustainability in textiles, with China in particular setting ambitious targets for high performance fibre self-sufficiency, developments in biodegradable material and increased production capacity in recycled fibre.

This fits perfectly with FET’s ethos, having long been a leading exponent of sustainability in fibre technology. The FET range of laboratory and pilot Melt Spinning extrusion lines is suited for both process and end product development of sustainable materials, enabling customers to undertake process development in-house. All FET systems are designed to be material efficient, can be bespoke designed and offer both flexibility and a high level of processing capability.

• Spunbond, meltblown and composite structures for new market opportunities

RadiciGroup is participating with its Advanced Textile Solutions business area at Index in Geneva from 18 to 21 April 2023. Among the Group’s products showcased are spunbond and meltblown for different application sectors, such as roofing, construction, automotive, HO.RE.CA. and filtration.

“The key message we are bringing to the fair is sustainability,” noted Enrico Buriani, CEO of the Nonwovens division of RadiciGroup Advanced Textile Solutions. “Those who already know us know that, for many years, the Group has been focused on proposing low environmental impact products and processes where sustainability is scientifically measured or certified by independent third parties. Our company is dedicated to nonwovens, which, by the way, are produced using 100% renewable energy. We have expanded our portfolio of innovative solutions for customers interested in realizing projects with sustainability as an essential requirement.”

Respunsible® is a spunbond brand manufactured from recycled polypropylene. A preliminary Life Cycle Assessment (LCA) study was carried out by RadiciGroup to demonstrate the correlation between the reduction in environmental impact and the percentage increase in recycled material. The final results demonstrate that a variable percentage of from 50 to 70% recycled material leads to a reduction in CO2 emissions of from 30 to 40%, compared to a fabric made of 100% virgin material, without comprising high technical performance.

Additionally, since RadiciGroup has achieved ISCC PLUS certification (International Sustainability and Carbon Certification), it can offer bio, biocircular or circular polypropylene spunbond and meltblown nonwovens, in which the sustainable polypropylene is biomass balanced. This certification signifies traceability along the supply chain and verifies that the certified companies meet high environmental and social standards.

“Since 2020, we have had a technologically advanced meltblown production line,” Mr. Buriani concluded. “This allows us to make composite structures, sold under the brand name Radimelt®. Now our goal is to expand our filtration applications, diversifying and developing new business, for instance vacuum cleaner bags or HVAC (heating, ventilation and air conditioning) system filters, where we can meet the high efficiency and mechanical resistance demanded, thanks to our latest generation technology.”

• Less C0₂ emissions + sustainable + recyclable

Sustainability first - this is the principle of the Institut für Textiltechnik (ITA) of RWTH Aachen University at JEC World 2023. ITA combines various lightweight construction technologies to reduce C0₂ and to use renewable and/or recyclable raw materials.

ITA presents innovations in the production of reinforcing fibres and in the textile processing of high-modulus fibres. It also shows the impregnation of high-modulus fibres with thermosetting and thermoplastic matrix systems.  

ITA will be exhibiting in hall 6 together with Textechno, Mönchengladbach, Germany, textile testing equipment and Maruhachi Fukui, Japan, Thermoplastic Composite Material Systems. The Interreg AACOMA project will also be presented at the stand. 

On the sidelines of the Intertextile Shanghai fair, the Swedish textile-to-textile recycling innovator Renewcell and the leading Chinese viscose manufacturer Tangshan Sanyou announced the next step in their partnership to make fashion circular that stretches back to 2018.

The two companies’ new shared ambition is to offer manufacturers and brands Circulose® viscose fibers made from 100% recycled textiles in commercial quantities starting in 2024. The collaboration has been facilitated by Ekman Group, Renewcell’s exclusive global trading partner.

“I am very happy to announce this acceleration of our long-standing partnership with Tangshan Sanyou. They were the first commercial producer of Circulose®-based fibers in the world, and the first to commit to sourcing significant volumes from us. Now, they aim to also be the first to commercialize 100% Circulose® content fibers” said Patrik Lundström, CEO of Renewcell, adding "I applaud Tangshan Sanyou’s vision and support to scaling next gen raw materials like Circulose®.”

The announcement, which follows the recent start of deliveries of 100% recycled textile Circulose® pulp from Renewcell’s newly opened Renewcell 1 recycling plant, is the result of successful validation of Circulose®’s quality in production at Tangshan Sanyou’s commercial-scale manufacturing lines. Tangshan Sanyou would strive to finish the mission of producing commercial volumes of 50% Circulose® content fibers during 2023 and work towards achieving the delivery of 100% Circulose® content branded viscose fibers to selected fashion brands and manufacturers starting in 2024. The two companies will cooperate to market the fibers globally using Renewcell’s Circulose® ingredient brand name.

Mr. Zhang Dongbin, Executive Vice General Manager of Tangshan Sanyou Chemical Fiber, says, "Through the collaboration with Renewcell, we have achieved to use Circulose® made from recycled cotton in the production of our viscose fibers, which is great beneficial to improving resource utilization efficiency and lowering carbon footprint of the industry. It has brought a huge impact in the sustainable fashion industry. We will continue putting efforts in forming good interaction between consumers, brands and enterprises, convey the concept of circular sustainable fashion, promote the greening of textile industry, and ensure a more sustainable way to ensure the sustainable development of the textile industry. Protecting the global ecological environment by applying sustainable solutions is our common goal."