From the Sector

The textile industry is the third largest consumer of plastics. While growth rates in the production of fibres and textiles are high, the circular economy has hardly become established in this segment. The EREMA Group is now intensifying development of recycling solutions for this application with their new fibres and textiles business unit. Currently, the focus is on PET fibre materials from fibre production and subsequent processing steps. Technologies for recycling mixed fibre textiles from textile collection sources are to follow in a follow-up project phase.

"With EREMA's VACUREMA® and INTAREMA® technology and PURE LOOP's ISEC evo technology, our company group already has an extensive range of machines for fibre and PET recycling applications. For ecologically and economically sound recycling, however, new technological solutions are needed to use the recycled fibres in higher-value end applications and to achieve a functioning circular economy," explains Wolfgang Hermann, Business Development Manager Application Fibres & Textiles, EREMA Group GmbH. The initial focus will be on PET, regarded as a key material for the production of synthetic fibres. The aim is to find recycling solutions that allow PET fibre materials to be prepared for reuse in PET fibre production processes. This is a significant step for the circular economy because PET fibres in textiles account for about two-thirds of the total volume of PET.

In this development work, the EREMA Group can build on existing know-how. Proven recycling technologies have been combined with a new IV optimiser. "This extends the residence time of the PET melt, which is particularly necessary in fibre recycling to efficiently remove spinning oils. Our recycling process also increases the IV value of the PET melt after extrusion back to the specific level that is essential for production of the fibre," explains Hermann. Waste PET fibre from production processes can therefore be further processed into rPET filament fibre, carpet yarn and staple fibre.

Fibre test centre with plant to test customers' materials
In order to accelerate development work, EREMA opened its own fibre test centre a few months ago, where a cross-company team is working on recycling solutions for fibre-to-fibre applications.

• Collaboration between Indorama Ventures and Toyobo to meet growing global demand for airbags
• Newly completed plant in Thailand will supply high-performance nylon yarn to customers in the automotive safety sector

Indorama Ventures Public Company Limited (IVL) celebrated the completion of a plant to manufacture high-performance nylon yarn for automobile airbags. The new plant in Rayong, Thailand, was constructed by Toyobo Indorama Advanced Fibers Co., Ltd. (TIAF), a joint venture that Indorama Ventures established with Toyobo Co., Ltd in November 2020.

The plant, which has been built on the site of Indorama Polyester Industries PCL (IPI) in Rayong Province, will deliver 11,000 tons of high-performance yarn per year to meet global demand for airbags that is expected to grow by 3 percent to 4 percent annually as automakers equip vehicles with more airbags and emerging economies require cars to adopt more safety features. Test production is scheduled to start in October 2022 with the goal of starting commercial production in the middle of 2023.

In 2014, Indorama Ventures and Toyobo jointly acquired Germany’s PHP Fibers GmbH, a leading airbag yarn maker. Since then, both companies have strengthened their relationship with a focus to expand in the automotive safety sector. Mr Christopher Kenneally, based in Bangkok, leads IVL’s Fibers segment, which produces fibers and yarns across its Hygiene, Mobility and Lifestyle verticals. Mr Ashok Arora, with over 30 years of experience in fibers and polymer operations, will helm TIAF as CEO while maintaining his role as CTO with IVL Fibers.

RHEON LABS, a fast-growing materials technology company based in Battersea, London, has completed an extensive 6 month trial with FET, a world leader in laboratory and pilot meltspinning equipment. Backed by a £173,000 grant from Innovate UK for feasibility studies, RHEON LABS has further developed its RHEON™ technology, a reactive polymer that dynamically stiffens when subjected to force. The technology can control energy of any amplitude or frequency, from small vibrations to forces at ballistic-speeds and therefore has a wide range of applications.
 
This Innovate UK Smart Grant-backed project aims to develop a hyper viscoelastic fibre from RHEON™ which displays high strain-rate sensitive properties. Creating a fibre with unique strain-rate sensitive properties will be a world first. It will enable the creation of a 'breakthrough-generation' of stretch textiles that can actively absorb, dampen and control energy during movement, rather than simply acting as a spring.

For close-fitting activewear and sports bras, the ability to actively control muscle mass or soft tissue movement during exercise will be a game-changing advancement. It will allow brands to engineer garments that relax during everyday use but actively stiffen during exercise for improved support and performance.
The Innovate UK grant was awarded under the category of Hyper-Viscoelastic Fibre Extrusion for Textile Manufacture. Fibre Extrusion Technology Limited (FET) enabled the customer trials at its bespoke Fibre Development Centre in Leeds, England using its in-house FET-103 Monofilament meltspinning facilities, in harness with RHEON and FET technical operatives. The next phase will be to upscale the trials of preferred materials on RHEON’s own new FET-103 meltspinning line, with FET’s continued support and expertise on hand.
 
Creating a fibre with unique strain-rate sensitive characteristics could be as radical a change in the market as the initial introduction of stretch fibre with the launch of Lycra™. The textiles would have a multitude of beneficial properties and would provide significantly less compression in the garment than conventional materials, substantially improving user comfort, support and performance.

• Lenzing has been awarded the highest CSR rating from EcoVadis for the second consecutive time
• Global rating standard evaluates 90,000 companies: Lenzing among top 1 percent of its industry
• enzing joins the UN Global Compact sustainability initiative

Lenzing Group has been awarded platinum status in the CSR rating from EcoVadis. This comprehensive assessment covers the four key practices of corporate social responsibility: the environment, fair working conditions and human rights, ethics and sustainable procurement.

This is the second time that EcoVadis, a leading international provider of sustainability ratings for businesses, has awarded platinum status to Lenzing for its sustainability performance. As a result, Lenzing ranks among the world’s top 1 percent of companies in its sector that are rated by EcoVadis.

In line with its “Naturally positive” sustainability strategy, the Lenzing Group has set ambitious targets in each of its core strategic areas, aimed at bolstering its capacity to move from a linear to a circular model. Lenzing reports the corresponding implementation measures and the progress it has made in its annual sustainability report. This high level of accountability and transparency was particularly praised in the assessment by EcoVadis. The rating provider also highlighted Lenzing’s comprehensive measures to reduce air pollution, wastewater and greenhouse gases, in addition to its provision of skills development training and health care programs for staff members.

Partnerships for systemic change
Lenzing forges strategic partnerships with various stakeholders to meet its ambitious climate and sustainability targets and drive forward systemic change in the textile and nonwoven industries. This is why Lenzing, as one of 15,000 companies worldwide, joined the United Nations Global Compact. As a member, Lenzing is committed to upholding human rights, respecting the rights of employees and their representatives, protecting the environment, enabling fair competition and combating corruption.

World Natural Fibre Production in 2022 is estimated at 32.6 million tonnes, down 1.1 million tonnes from the estimate one month ago. Production reached 33.3 million tonnes in 2021 and 31.6 million in 2020.

A drought in Texas where over half of cotton produced in the United States is grown, and flooding in Pakistan, the fifth largest cotton producer, account for the decline (www.ICAC.org).

• Nearby cotton futures on the Intercontinental Exchange rose 14% from the end of July and finished August at $2.60 per kilogram.
• The Eastern Market Indicator of wool prices in Australia, fell 1% from mid-July to mid-August to US$9.27 per kilogram.
• Prices of jute fibre in India quoted by the Jute Balers Association (JBA) at the end of August converted to US$ fell 4% from a month earlier to 79 cents per kilogram.
• Prices of silk in China equalled US$ 28.7 per kilogram at the end of August, compared with US$29.5 per kilogram in July 2022, a change of 3%.
• Coconut coir fibre in India held at US cents 21 per kilogram in August.

World production of jute and allied fibres is estimated unchanged at 3.2 million tonnes in 2022 compared with 2021. High market prices in 2021 motivated farmers to expand planted area in both Bangladesh and India, but dry weather during June and July will limit yields per hectare. Normal monsoon rains resumed in South Asia during August, too late for the 2022 jute crop (https://www.wgc.de/en/).

Production of coir fibre rose by an average of 18,000 tonnes per year during the past decade, and production was at a record high of 1.12 million tonnes in 2021. Production is expected to remain high in 2022.

Flax has also been trending upward, rising by an average of 27,000 tonnes per year, and production in 2022 is estimated to remain above one million tonnes.

World wool production is forecast up by 5% in 2022 to 1.09 million tonnes (clean), the highest since 2018. Wetter weather in the Southern Hemisphere, following eight years of drought, is allowing farmers to rebuild herds (https://www.wool.com/market-intelligence/).

Natural fibres are heavily-traded commodities, and supply chain disruptions are causing significant economic losses as freight costs remain high and deliveries are delayed.

About 40% of world cotton production moves as fibre in international trade each season. Over half of world jute production moves as fibre or product, and around 55% of world wool production is exported as raw wool. Abaca, flax, and sisal are also heavily traded.

Most natural fibre exports traverse back-haul ocean freight routes from the Western Hemisphere to East Asia and the Middle East, from South Asia to East Asia and Europe, from Africa to East Asia and the Middle East, and from Australia and South Africa to China. Such routes are relatively underserved in the best of times, and reduced sailings since the start of Covid are restricting trade volumes.

As of the end of August, Freightos (https://fbx.freightos.com/) quoted the cost of moving a 40’ container from the United States West Coast to East Asia at $793, compared with $1,020 in March 2022. Nevertheless, average freight costs on back -haul routes used by natural fibres remain approximately triple their pre-covid levels. In addition to ocean freight costs, inland transportation is also affected by high fuel prices and a lack of containers. As one example, charges for inland handling of export containers in Bangladesh, the largest exporter of raw jute, increased by 48 per cent during August.

Electronically conductive fibres are already in use in smart textiles, but in a recently published research article, ionically conductive fibres have proven to be of increasing interest. The so-called ionofibres achieve higher flexibility and durability and match the type of conduction our body uses. In the future, they may be used for such items as textile batteries, textile displays, and textile muscles.

The research project is being carried out by doctoral student Claude Huniade at the University of Borås and is a track within a larger project, Weafing, the goal of which is to develop novel, unprecedented garments for haptic stimulation comprising flexible and wearable textile actuators and sensors.

In Claude Huniade’s project, the goal is to produce conductive yarns without conductive metals.
"My research is about producing electrically conductive textile fibres, and ultimately yarns, by coating non-metals sustainably on commercial yarns. The biggest challenge is in the balance between keeping the textile properties and adding the conductive feature," said Claude Huniade.

Currenty, the uniqueness of his research leans towards the strategies employed when coating. These strategies expand to the processes and the materials used.

Uses ionic liquid
One of the tracks he investigates is about a new kind of material as textile coating, ionic liquids in combination with commercial textile fibres. Just like salt water, they conduct electricity but without water. Ionic liquid is a more stable electrolyte than salt water as nothing evaporates.

"The processable aspect is an important requirement since textile manufacturing can be harsh on textile fibres, especially when upscaling their use. The fibres can also be manufactured into woven or knitted without damaging them mechanically while retaining their conductivity. Surprisingly, they were even smoother to process into fabrics than the commercial yarns they are made from," explained Claude Huniade.

Ionofibres could be used as sensors since ionic liquids are sensitive to their environment. For example, humidity change can be sensed by the ionofibers, but also any stretch or pressure they are subjected to.

"Ionofibres could truly shine when they are combined with other materials or devices that require electrolytes. Ionofibres enable certain phenomena currently limited to happen in liquids to be feasible in air in a lightweight fashion. The applications are multiple and unique, for example for textile batteries, textile displays or textile muscles," said Claude Huniade.

Needs further research
Yet more research is needed to combine the ionofibres with other functional fibres and to produce the unique textile devices.

How do they stand out compared to common electronically conductive fibres?
"In comparison to electronically conductive fibres, ionofibers are different in how they conduct electricity. They are less conductive, but they bring other properties that electronically conductive fibers often lack. Ionofibres achieve higher flexibility and durability and match the type of conduction that our body uses. They actually match better than electronically conductive fibres with how electricity is present in nature," he concluded.

Shorter product life cycles and rapid technological progress are changing the product landscape at an ever-faster pace. The ability to anticipate future changes and to proactively shape the change is therefore an increasingly decisive competitive factor for modern companies. Trends are considered to be important indicators of impending

Kelheim Fibres, a leading manufacturer of viscose speciality fibres, stands out in the industry not least for its innovative strength, as evidenced by numerous awards such as the Techtextil Innovation Award 2022 in the “New Concept” category. At this year’s Global Fiber Congress Dornbirn, Innovation Manager Ilka Kaczmarek will give an insight into the innovation management of the Bavarian fibre experts in her presentation “Trend Management meets Open Innovation: Best Practice Examples from Kelheim”. Ilka Kaczmarek will show how successful product solutions were developed in a short time by focusing on customer needs and working closely with partners along the value chain.

Natalie Wunder, Project Manager at Kelheim Fibres, will explain one of these examples in detail in her presentation “Development of Menstruation Pants using Speciality Viscose Fibres”. Based on the current trend and the desire of end customers for reusable products, Kelheim Fibres was able to develop a washable and thus reusable, yet bio-based solution for feminine hygiene products.

The future of e-mobility will be determined in particular by safe battery enclosures. As batteries for electric vehicles become more performant, higher volumetric energy density plays a crucial role. If more energy is to be stored in less installation space, new material and design solutions are required. The development of suitable enclosures made of safe and highly robust lightweight materials is also required. This is a case for the Aachen Centre for Integrative Lightweight Production (AZL). A project on cell-to-pack battery enclosures for battery-electric vehicles, which has been eagerly awaited in the industry, will start in October this year there.

The design of battery housings is crucial for safety, capacity, performance, and economics. The Cell-to-Pack project, which is starting now, will focus on developing concepts for structural components and for producing them based on a variety of materials and design approaches. The concepts will be compared in terms of performance, weight and production costs, creating new know-how for OEMs, producers and their suppliers throughout the battery vehicle value chain. Companies are now invited to participate in this new cross-industry project to develop battery enclosure concepts for the promising and trend-setting cell-to-pack technology.

The basis for the project is the lightweight engineering expertise of the AZL experts, which they have already demonstrated in previous projects for multi-material solutions for module-based battery housings. Together with 46 industry partners, including Audi, Asahi Kasei, Covestro, DSM, EconCore, Faurecia, Hutchinson, Johns Manville, Magna, Marelli and Teijin, 20 different multi-material concepts were optimized in terms of weight and cost and compared with a reference component made from aluminum. All production steps were modelled in detail to obtain reliable cost estimates for each variant. Result: depending on the concept, 20% weight or 36% cost savings potential could be identified by using multi-material composites compared to the established aluminum reference.

It is expected that the design concept of battery enclosures will develop in the direction of a more efficient layout. In this case, the cells are no longer combined in modules in additional production steps, but are integrated directly into the battery housing. The elimination of battery modules and the improved, weight-saving use of space will allow for higher packing density, reduced overall height and cost saving. In addition, various levels of structural integration of the battery housing into the body structure are expected. These new designs bring specific challenges, including ensuring protection of the battery cells from external damage and fire protection. In addition, different recyclability and repair requirements may significantly impact future designs. How the different material and structural options for future generations of battery enclosures for the cell-to-pack technology might look like and how they compare in terms of cost and environmental impact will be investigated in the new AZL project. In addition to the material and production concepts from the concept study for module-based battery enclosures, results from a currently ongoing benchmarking of different materials for the impact protection plate and a new method for determining mechanical properties during a fire test will also be incorporated.

The project will start on October 27, 2022 with a kick-off meeting of the consortium, interested companies can still apply for participation until then.

• Gradual transformation of production capacities to LENZING™ ECOVERO™ and VEOCEL™ branded specialty viscose

The Lenzing Group, provider of wood-based specialty fibers, is expanding its global clean electricity portfolio and transitioning its production site in Purwakarta to green electricity. The Indonesian subsidiary PT. South Pacific Viscose (SPV) has been using electricity generated solely from renewable sources since July this year, which will reduce its specific carbon emissions by 75,000 tonnes annually.

In 2019, Lenzing became the first fiber producer to set a target of halving its carbon emissions by 2030 and becoming climate neutral by 2050. This carbon reduction target has been recognized by the Science Based Targets Initiative. In Purwakarta, Lenzing is currently investing in the reduction of carbon emissions, as well as air and water emissions. Thanks to its EUR 100 million investment in this area, Lenzing is gradually transitioning its existing capacities for standard viscose to LENZING™ ECOVERO™ and VEOCEL™ branded specialty viscose.

“Demand for our wood-based, biodegradable specialty fibers is constantly rising. We see enormous growth potential, especially in Asia. The switch to green, renewable electricity marks a huge step forward in converting our Indonesian site into a specialty fiber supplier. This makes us better positioned to meet the growing demand for sustainably produced fibers,” comments Robert van de Kerkhof, Chief Commercial Officer for Fiber at Lenzing.

The company aims to generate more than 75 percent of its fiber revenue from the wood-based, biodegradable specialty fibers business under the TENCEL™, LENZING™ ECOVERO™ and VEOCEL™ brands by 2024. With the launch of the lyocell plant in Thailand in March 2022 and the investments in existing production sites in Indonesia and China, the share of specialty fibers in Lenzing’s fiber revenue is set to exceed the 75 percent target by a significant margin as early as 2023.

The Discover Natural Fibres Initiative DNFI published their statistical World Natural Fibre Update this month. The world production of natural fibres is estimated at 33.7 million tonnes in 2022, a slight increase compared with a preliminary 33.3 million tonnes in 2021 and 31.6 million in 2020.

The DNFI Natural Fibre Composite Price dropped 2% in July 2022 to US 219 cents/kg, compared with US 223 cents the previous month. The DNFI Composite is an average of prices in major markets for cotton, wool, jute, silk, coir fibre, and sisal, converted to US$ per kilogram and weighted by shares of world production.

• The DNFI Composite was pulled downward primarily by a 9% decline in the Eastern Market Indicator of wool prices in Australia, which fell from US$ 10.27 per kilogram in June to US$9.38 in July.
• October cotton ICE futures (the nearby contract) finished July marginally lower, closing at 228 US cents per kilogram, compared with 229 at the end of June.
• Prices of jute fibre in India quoted by the Jute Balers Association (JBA) at the end of July were unchanged from a month earlier, but with depreciation of the Rupee versus the dollar, calculated prices fell from 84 cents to 82 cents per kilogram.
• Prices of silk in China equalled US$29.5 per kilogram in July 2022, coconut coir fibre in India held at US cents 21 per kilogram, and sisal in Brazil finished July at US cents 41 per kilogram.

Cotton prices were the highest in a decade during 2021/22, and world cotton production is estimated by the International Cotton Advisory Committee at 25.8 million tonnes during the 2022/23 season which began August 1, up from 25.4 million in the season just completed. Extreme drought in Texas, the largest producing state in the United States, is limiting the rise in world production that would otherwise be occurring.

World production of jute and allied fibres is estimated unchanged at 3.2 million tonnes in 2022 compared with 2021. High market prices in 2021 motivated farmers to expand planted area in both Bangladesh and India, but dry weather in jute-growing areas during June and July has undermined earlier optimistic hopes for yields. Rainfall was approximately half of normal in the city of Kolkata from early June to mid-July.

Production of coir fibre rose by an average of 18,000 tonnes per year during the past decade, and production was record high at 1.12 million tonnes in 2021. Production is expected to remain high in 2022.

Flax has also been trending upward, rising by an average of 27,000 tonnes per year, and production in 2022 is estimated to remain above one million tonnes.
World wool production is forecast up by 5% in 2022 to 1.09 million tonnes (clean), the highest since 2018. Wetter weather in the Southern Hemisphere, following eight years of drought, is allowing farmers to rebuild herds.