From the Sector

Eltex of Sweden, a pioneer in the adoption of electronic sensors by the weaving machinery industry, is marking its 60th anniversary this month.

The electronic detection of broken or missing weft yarns during production was the problem Eltex founders Åke Rydborn and Ragnar Henriksson set out to solve with the development of the world’s first electronic weft-stop-motion. Its potential was recognised on its introduction at the 1963 ITMA exhibition in Hannover, Germany, leading to the foundation of the company in a modest 12-square-metre workshop in Älmhult, Sweden, in February 1964.

By 1968 the company was operating from a modern 3,000-square-metre plant and beginning to establish a global presence, introducing the first all-in-one printed circuit board (PCB) for its sensor systems in 1971. As exports increased, further Eltex operations were established in the USA and Ireland and the company expanded its product range including energy control devices, temperature and humidity loggers, food handling safety systems, and military grade battery chargers. Further textile milestones in parallel to advances in weaving technology included optical arrival detectors for air-jet weaving machines at the beginning of the 1980s, and the QTV system for warp preparation, which introduced digital stop-motion control to the industry at the start of the 1990s. In 2009, the company branched out into carpet tufting, first with the CoTS clamp-on tube sensor for tufting machines, followed by the Compact sensor for tufting machines in 2013. In 2019 the Compact II further cemented the company’s position in this sector.

Newly developed Eltex EyETM and ACT-R
Most recently, Eltex has launched the Eltex EyETM system for the monitoring of yarn tension on warp beams. Not only does it eliminate problems when warping, but also in the subsequent weaving or tufting processes. Eltex EyETM monitors the yarn tension on all positions in real-time and a minimum and maximum allowable tension value can be set. If any yarn’s tension falls outside these values the operator can be warned or the machine stopped.

The Eltex ACT and ACT-R units meanwhile go beyond yarn tension monitoring to actually control yarn tension. This extends the application range greatly. The plug and play system automatically compensates for any differences in yarn tension that arise, for example from irregularities in yarn packages.

Eltex has been owned by Brian Hicks, Seamus O’Dwyer and Jonathan Bell since 2007, following a management buy-out and the subsequent formation of Eltex Global Holdings in Ireland. Today, its head office, Eltex of Sweden AB, is in Osby, Sweden where it provides research and development, administration and global sales for the group. Eltex Manufacturing in Ireland is now the group’s primary production facility and Eltex US, Inc. provides sales and service for North America.

CARBIOS and De Smet Engineers & Contractors (DSEC), a provider of Engineering, Procurement and Construction services in the biotech’s and agro-processing industries, announce their collaboration to spearhead the construction of the world's first PET biorecycling plant. Under the agreement, De Smet has been entrusted with the project management and detailed engineering, including procurement assistance and CARBIOS partners’ management, to ensure the execution of the plant's construction in Longlaville, France, due for commissioning in 2025.  CARBIOS’ first commercial facility will play a key role in the fight against plastic pollution by offering an industrial-scale solution for the enzymatic depolymerization of PET waste to accelerate a circular economy for plastic and textiles.

With over 70 members of De Smet's expert team dedicated to the project and working alongside CARBIOS teams, the collaboration aims to guarantee the project timeline and budget while upholding quality, safety, health, and environmental standards. Construction is currently underway and on schedule.

Many end-users now expect recycled materials to be in textile products they purchase – and this is driving innovation throughout the industry. However, there are still many technical and economic issues facing yarn and fabric producers using recycled resources. Members of the Swiss Textile Machinery Association offer some effective solutions to these challenges.

Synthetic recycled materials such as PET can usually be treated similarly to new yarn, but there are additional complexities where natural fibres like wool and cotton are involved. Today, there’s a trend towards mechanically recycled wool and cotton fibres.

Spinning recycled cotton
The use of mechanically recycled fibres in spinning brings specific quality considerations: they have higher levels of short fibres and neps – and may often be colored, particularly if post-consumer material is used. It’s also true that recycled yarns have limitations in terms of fineness. The Uster Statistics 2023 edition features an extended range of fibre data, supporting sustainability goals, including benchmarks for blends of virgin and recycled cotton.
In general, short fibres such as those in recycled material can easily be handled by rotor spinning machines. For ring spinning, the shorter the fibres, the more difficult it is to guide them through the drafting zone to integrate them into the yarn body. Still, for wider yarn counts and higher yarn quality, the focus is now shifting to ring spinning. The presence of short fibres is a challenge, but Rieter offers solutions to address this issue.

Knitting recycled wool
For recycling, wool fibres undergo mechanical procedures such as shredding, cutting, and re-spinning, influencing the quality and characteristics of the resulting yarn. These operations remove the natural scales and variations in fibre length of the wool, causing a decrease in the overall strength and durability of the recycled yarn. This makes the yarn more prone to breakage, especially under the tension exerted during knitting.

Adapting to process recycled materials often requires adjustments to existing machinery. Knitting machines must be equipped with positive yarn suppliers to control fibre tension. Steiger engages in continuous testing of new yarns on the market, to check their suitability for processing on knitting machines. For satisfactory quality, the challenges intensify, with natural yarns requiring careful consideration and adaptation in the knitting processes.

From fibres to nonwovens
Nonwovens technology was born partly from the idea of recycling to reduce manufacturing costs and to process textile waste and previously unusable materials into fabric structures. Nonwovens production lines, where fibre webs are bonded mechanically, thermally or chemically, can easily process almost all mechanically and chemically recycled fibres.

Autefa Solutions offers nonwovens lines from a single source, enabling products such as liners, wipes, wadding and insulation to be produced in a true closed loop. Fibres are often used up to four times for one product.

Recycling: total strategy
Great services, technology and machines from members of Swiss Textile Machinery support the efforts of the circular economy to process recycled fibres. The machines incorporate the know-how of several decades, with the innovative power and quality standards in production and materials.
Stäubli’s global ESG (environmental, social & governance) strategy defines KPIs in the context of energy consumption, machine longevity and the recycling capacity in production units worldwide, as well in terms of machinery recyclability. The machine recyclability of automatic drawing in machines, weaving systems and jacquard machines ranges from 96 to 99%.

The testing service provider and research partner Hohenstein is joining the Innovation Park for Artificial Intelligence (IPAI) in Heilbronn. There are already points of contact with AI applications in some interdisciplinary research projects. In addition, there is the cooperation with the Munich-based start-up Sizekick and its AI-based technology for size recommendations, which aims to reduce size-related returns in online fashion retail.

"We expect the connection to the IPAI AI network to provide us with valuable impulses to remain fit for the future," explains Hohenstein CEO Dr. Timo Hammer, "This unique platform brings together a wide variety of players with their experience and knowledge. New ideas, projects and even products can be generated with great dynamism in the network as an intelligent response to future requirements. Because one thing is clear - artificial intelligence is THE key technology of the future".

The Innovation Park for Artificial Intelligence (IPAI) in Heilbronn (www.ip.ai) sees itself as an innovation platform for applied AI and a German lighthouse project with international appeal. The center is intended to map the entire AI value chain, from the qualification of specialists to the application of ethically responsible AI. The aim is to use the AI ecosystem to bring together companies, start-ups, research institutions, scientists, and public institutions and to secure Germany's digital independence and competitiveness in a key future technology.

The fashion industry, which has strategic importance for the Turkish economy with its value-added production, employment, and exports, came together with representatives of global brands and Laison offices at the 'Green transformation' summit. At the meeting hosted by the Istanbul Apparel Exporters' Association (IHKIB), the studies carried out in the process of adaptation to the Green Deal were put under the spotlight, and the expectations of the Turkish fashion industry from the stakeholders were also expressed.

The opening of the meeting, attended by representatives of relevant ministries and foreign representations, national and international fund providers, as well as brands and buying groups were brought together, was made by Türkiye Exporters Assembly (TIM) and IHKIB President Mustafa Gültepe. In his speech, Gültepe underlined Türkiye's importance in the global apparel industry, by realizing approximately 3.5 percent of world apparel exports. Gültepe continued as follows:

"As IHKIB, we aim to increase our current annual exports, which are around $20 billion, to $40 billion. The road to the goal goes through Europe and America because the European Union is our largest market in apparel. We export 60 percent of our total apparel exports to EU countries. When we add other European countries and the USA, the ratio approaches 75 percent. While working on alternatives for the $40 billion in exports, we need to focus more on the European and U.S. markets because, as the data shows, the path to $40 billion in apparel exports goes through Europe and the U.S. We already have long-standing collaborations with brands centered in Europe and America. With our knowledge, speed, production quality, design power, and geographical proximity to Europe, we distinguish ourselves from competitors. We took a very important step in the transformation process exactly one year ago. We shared our action plan, which is a road map for our fashion industry's compliance with the Green Deal, with the public on January 30, 2023."

After Mustafa Gültepe's opening speech, Euratex Director General Dirk Vantyghem, Deputy Director General of the Ministry of Trade Bahar Güçlü, and Deputy Secretary General of ITKIB Özlem Güneş made presentations regarding the ongoing efforts in the Green Deal process.

Dirk Vantyghem discussed the sustainability strategy of the textile and apparel industry and the expectations from the EU administration, while Bahar Güçlü provided information about the reflections of legal regulations related to the Green Deal on Türkiye.

Deputy Secretary General of ITKIB Özlem Güneş emphasized the significant opportunity that the Green Deal represents for the Turkish apparel industry, providing comprehensive insights into the efforts conducted by IHKIB regarding the Green Deal adaptation process.

The Aachen-based start-up SA-Dynamics is developing sustainable, bio-based and biodegradable insulation materials made from aerogel fibres, thereby setting new standards in resource-saving construction. Dr Sascha Schriever (Institut für Textiltechnik ITA), Maximilian Mohr (ITA), Dr Jens Hofer (ITA Postdoc) and Dr Christian Schwotzer (Department for Industrial Furnaces and Heat Engineering IOB), who trained at RWTH Aachen University, were awarded first place in the KUER.NRW Business Plan Competition 2023 and prize money of €6,000.

SA-Dynamics relies on the impressive properties of aerogel fibres: they have excellent insulating properties, are lightweight, durable, robust, versatile and can be processed very well on conventional textile machines thanks to their flexibility. This makes them comparable to polystyrene, but still sustainable, as SA Dynamics uses bio-based and biodegradable raw materials.

"We can revolutionise the construction world with bio-based aerogel fibres," explains ITA founder Dr Sascha Schriever proudly. "If all insulation materials in construction are converted to bio-based aerogel fibres, all builders can realise their dream of a sustainable house."

SA Dynamics has come a good deal closer to its founding goal by winning the KUER.NRW 2023 business plan competition. The spin-off from Institut für Textiltechnik (ITA) and Department for Industrial Furnaces and Heat Engineering (IOB) at RWTH Aachen University is scheduled for spring 2025.

A new research project links some of Denmark's leading researchers in PFAS remediation with artificial intelligence. The goal is to develop and optimise a new form of wastewater and drinking water treatment technology using artificial intelligence for zero-pollution goals.

In a new research and development project, researchers from Aarhus University aim to develop a new technology that can collect and break down perpetual chemicals (PFAS) in one step in a purification process that can be connected directly to drinking water wells and treatment plants.

The project has received funding from the Villum Foundation of DKK 3 million, and it will combine newly developed treatment technology from some of Denmark's leading PFAS remediation researchers with artificial intelligence that can ensure optimal remediation.

"In the project, we will design, construct and test a new, automated degradation technology for continuous PFAS degradation. We’re also going to set up an open database to identify significant and limiting factors for degradation reactions with PFAS molecules in the reactor," says Associate Professor Xuping Zhang from the Department of Mechanical and Production Engineering at Aarhus University, who is co-heading the project in collaboration with Associate Professor Zongsu Wei from the Department of Biological and Chemical Engineering.

Ever since the 1940s, PFAS (per- and polyfluoroalkyl substances) have been used in a myriad of products, ranging from raincoats and building materials to furniture, fire extinguishers, solar panels, saucepans, packaging and paints.

However, PFAS have proven to have a number of harmful effects on humans and the environment, and unfortunately the substances are very difficult to break down in nature. As a result, the substances continuously accumulate in humans, animals, and elsewhere in nature.

In Denmark, PFAS have been found in drinking water wells, in surface foam on the sea, in the soil at sites for fire-fighting drills, and in many places elsewhere, for example in organic eggs. It is not possible to remove PFAS from everything, but work is underway to remove PFAS from the groundwater in drinking water wells that have been contaminated with the substances.

Currently, the most common method to filter drinking water for PFAS is via an active carbon filter, an ion-exchange filter, or by using a specially designed membrane. All of these possibilities filter PFAS from the water, but they do not destroy the PFAS. The filters are therefore all temporary, as they have to be sent for incineration to destroy the accumulated PFAS, or they end in landfills.

The project is called 'Machine Learning to Enhance PFAS Degradation in Flow Reactor', and it aims to design and develop an optimal and permanent solution for drinking water wells and treatment plants in Denmark that constantly captures and breaks down PFAS, while also monitoring itself.

"We need to be creative and think outside the box. I see many advantages in linking artificial intelligence with several different water treatment technologies, but integrating intelligence-based optimisation is no easy task. It requires strong synergy between machine learning and chemical engineering, but the perspectives are huge," says Associate Professor Zongsu Wei from the Department of Biological and Chemical Engineering at Aarhus University.

To expand its support for high-end and luxurious automotive interiors, B.I.G. Yarns has completed its first industrial production runs of virgin polyester BCF yarns for automotive carpet to complement its line of polyamide PA6 superior yarns.

There is a growing market in PET for automotive interior applications, with polyester allowing automotive OEMs and Tier 1 to develop products that, from the outset, consider eco-design by building MONO-polymer carpets and flooring that are 100% recyclable at End of Life (EOL ). These materials are helping to ensure improved and more sustainable EOL recycling of electric vehicles that are driving the future of the car industry.

The new PET BCF Yarns offer high-performance for automotive carpets, including abrasion and stain resistance, and durability, passing all stringent automotive tests including the Taber test for abrasion performance, compressibility and recovery ability test, light fastness in automotive (DIN EN ISO 105-B06) and VOC (fogging) according the VDA 278 test on VOC and FOG emission. The yarns can be color solution dyed, have a dTex between 1300 – 1500, 81 filaments and are ideally for mats with a composition of 400 to 800 gram per m², while the yarns for molded carpets have a dTex of 1200, 144 filaments for 380 gram per m².

With the addition of PET BCF yarns, B.I.G. Yarns is now a one-stop-shop for 3 types of Solution Dyed BCF carpet yarns for the automotive industry: nylon (PA6), polypropylene (PP) and polyester (PET), and the Eqo-range of PA6 yarns – the sustainability focused EqoBalance, EqoCycle and EqoYarn.

The automotive carpet market is expected to grow strongly in the coming decade with the increased demand for vehicle customization and personalization driven by owners looking to upgrade and enhance interiors, including the flooring area.
A growing awareness around car hygiene is also boosting the market as consumers become more conscious of maintaining cleanliness in their vehicles, including the floors. Automotive carpets provide an effective solution by trapping dirt and preventing it from spreading to other areas.

Panda Biotech announced that building construction is complete and the official commissioning process to bring its Panda High Plains Hemp Gin™ (the “Panda Hemp Gin”) project online began in early Q4. The commissioning process marks the final stage before beginning commercial operations in Q1 2024 at the 500,000 square foot Wichita Falls, Texas facility. The Panda Hemp Gin will process 10 metric tons of industrial hemp per hour to produce textile-grade fiber, hurd, short-fiber hurd mix, and a nutrient-rich co-product that will be pelletized. The facility is expected to be the largest hemp decortication center in the Western Hemisphere and among the largest in the world.

Using only renewable energy sources, the engineering and production process at the Panda Hemp Gin has been certified green by Mid-South Engineering Company, in accordance with the International Capital Market Association’s Green Bond Principles. Panda Biotech has also partnered with Oritain, a scientific traceability company, to bring the most traceable hemp grown 100 percent in the United States to market.

Additionally, Panda Biotech is actively signing contracts with producers to grow the hemp feedstock for the 2024 growing season, as well as purchasing hemp fiber that has already been harvested or processed. The company recently unveiled an unmatched pay-to-grow program for producers to begin growing Panda hemp. With up-front, guaranteed money and agronomy support, Panda producers also receive tested and proven seed at no cost, successfully mitigating the risk producers may assume and underscoring Panda’s commitment and promise to the farming community. The benefits of growing hemp are substantial, as it is an excellent rotational crop that remediates the soil and provides a competitive margin.

“Each piece of the Panda Hemp Gin production line, including the three miles of overhead pneumatic duct lines, refining, blending, mechanical cottonization, hurd bagging and storage, baling, and more, must be individually started, checked, balanced, and commissioned,” says Panda Biotech Executive Vice President Scott Evans. “Currently, all equipment is individually being brought online to be officially placed in service.”

This year’s edition of ITMA ASIA + CITME proved to be a success for the exhibiting VDMA member companies. Measured by booked square metres, Germany had the largest contingent, among the foreign exhibitors. More than 40 VDMA member companies were exhibiting their innovative products in Shanghai.

Dr. Janpeter Horn, chairman of the VDMA Textile Machinery Association noted: “Although facing a difficult market situation, this year’s edition of ITMA ASIA + CITME has exceeded the expectations, both in terms of the number of visitors and the quality of the talks. The significant number of foreign visitors to the fair was particularly pleasing.”

Solutions were demonstrated for more sustainable textile productions by most of the exhibitors, and here the VDMA members presented their technologies for saving water, energy and raw materials under the heading “Smart technologies for green textile production.”  

Dr. Uwe Rondé, CEO, Saurer Intelligent Technology AG explained: “Saurer is satisfied with both the number of visitors and the quality of the discussions. Our booth was full from morning to evening with customers focused on latest technologies within the three mega trends: recycling, automation and digitalisation. Although machine utilisation in the spinning mills is still well below average, people are already gathering information and thinking about what to invest in once the market recovers.”

Benjamin Reiners, owner of Reiners + Fürst stated: „This year’s ITMA ASIA + CITME has exceeded our expectations by far. Especially the first day - a Sunday - has brought many high-quality customers and exclusively decision makers to our booth. We estimate about 20% international customers mainly from Bangladesh, Egypt, India, Iran, Pakistan, Uzbekistan and Vietnam. All customers agreed that the market situation at the moment is difficult, capacity usage is between 50-75% in the ring spinning sector and improvement is expected not before the 2nd half of 2024. Nevertheless the general spirit is very positive.“

“This ITMA ASIA was a great success for Trützschler. We welcomed a large number of Chinese visitors to our booth, as well as a significant number of interested international visitors”, said Dr. Bettina Temath, Head of Global Marketing Trützschler Group SE.

Georg Stausberg, CEO of the polymer processing solutions division and chief sustainability officer of the Oerlikon Group stated: „We can look back on a successful show where we were able to meet many of our customers not only from China, but also from Pakistan, India and Indonesia, for example.”

“A very well-attended trade fair, with interesting discussions, great innovative topics, in line with the modern and rapidly developing China" noted Wolfgang Schöffl, head of product line weaving machines and member of the extended management, Lindauer Dornier.

The VDMA Textile Machinery Association and VDMA China were present at the fair, to support the members e.g. with regard to IPR. With the help of a VDMA expert and a contracted law firm, the member company Sahm submitted a complaint application for patent infringement disputes during the exhibition to the onsite IPR office. Both parties, Sahm, and the Chinese company, that used patented design without permission reached an agreement: The Chinese company had to stop displaying functions and designs involving patent infringement on site which meant the removal of some structural parts and the covering of key components protected by patent protection.

Dr. Harald Weber, managing director of VDMA Textile Machinery concluded: “Asia, and China in particular, represent the primary foreign markets for the VDMA member companies in the sector. The Chinese market is the main destination for their exports. Other major export destinations in Asia include India, Pakistan, Bangladesh and Uzbekistan. ITMA ASIA + CITME provides a unique platform to showcase technologies for customers directly in Asia. The VDMA member companies are looking forward to the coming edition of the fair from 14 to 18 October 2024 in Shanghai.”

The latest survey of VDMA members' subsidiaries in China gives reason to hope that the economic situation in the Chinese textile industry could also improve significantly in the second half of the year. In addition, European textile machinery manufacturers are urged to be present on the most important market and at the trade fair and to offer Asian customers most advanced technology for their demanding challenges.