From the Sector

International technology group ANDRITZ will present its innovative nonwovens and textile technologies at the booth of its Indian representative PRN Techtex at Techtextil India 2021 in Mumbai, India, from November 25 to 27, 2021. A special focus will lie on its technologies for air-through bonding, needlepunch, textile recycling, and processes for biodegradable wipes, like spunlace and WetlaceTM.

Air-through Bonding
Air-through-bonding lines are the preferred choice for producing nonwovens with the best quality of softness and bulk for acquisition distribution layers, top sheets, and back-sheet products. With ANDRITZ carding machines and the new flat belt oven, customers benefit from high-performance fabrics from 16 to 80 gsm, produced with bicomponent fibers. Several Chinese customers have already invested in ANDRITZ aXcess carding machines, which provide perfect web uniformity. In addition, the CETI (European Center for Innovative Textiles) in Lille, France, has installed an air-through-bonding oven from ANDRITZ.

Textil-recycling Technologies
Recently, ANDRITZ acquired Laroche SAS, a leading supplier of fiber processing technologies such as opening, blending, dosing, airlay web forming, textile waste recycling, and decortication of bast fibers. The product portfolio further complements and increases the ANDRITZ Nonwoven product range. One focus of this product range lies on complete recycling lines for post-consumer and industrial textile waste to produce fibers for re-spinning and/or nonwoven end uses.

Needlepunch Technologies
Driven by the dynamic market for durable nonwovens, ANDRITZ has developed an elliptical pre-cylinder tacker – the PA3000. With this modern machine, ANDRITZ is responding to customer demands for higher capacities and lighter products. The PA3000 is an optimized cylinder pre-needleloom, which offers greater speeds and widths and has been specially developed for lighter webs. There is no friction between the web and the rolls, and there are no issues with the visual appearance.

ANDRITZ is also focusing on its latest needling technology for producing veloured felts, mainly for applications in the automotive industry.

In addition, ANDRITZ will be presenting the next generation of its batt-forming technology, the ProWin system. ProWin is a further development of ProDynTM and ProWidTM, which have achieved a high level of acceptance on the market with around 200 systems installed. This technology improves the current weight-profiling options and increases the actual production capacity.

Production of Bio-Wipes
For many years now, ANDRITZ has offered different nonwoven processes, such as spunlace and Wetlace, with one goal in mind: reduction and elimination of plastic raw materials while maintaining the high quality of the desired product properties. The latest development in this field is the ANDRITZ neXline wetlace CP line. This is a fully engineered production line, combining the benefits of wetlaid and drylaid technologies to produce a new generation of biodegradable wipes. This process achieves high performance entirely with plastic-free raw materials. The added benefit of using a blend of fibers, like wood pulp, short-cut cellulosic fibers, viscose, cotton, hemp, bamboo, or linen, without chemical additives, results in a 100% sustainable fabric.

Kai-Chieh Kuo, PhD student at the Institut für Textiltechnik (ITA) of RWTH Aachen University, was awarded the German Textile Mechanical Engineering 2021 Best Master's Thesis Award for his master's thesis entitled "Modification of the tube weaving process of fine yarns for the production of woven ultra-low profile stent grafts". The prize is endowed with 3,500€. Peter D. Dornier, Chairman of the Board of the Walter Reiners-Stiftung (Foundation), virtually presented the award on the occasion of the ADD International Textile Conference on 9 November 2021.

Minimally invasive endovascular aortic repair (EVAR) with textile stent-graft systems is nowadays a clinically established therapy procedure for the treatment of abdominal aortic aneurysms (AAA) – pathological bulges of the aorta. Due to the thick profile of the folded stent graft systems, there is currently a high risk of injuring narrowed or highly angulated access vessels from the inside during implantation. Stent graft systems with smaller profiles could provide an improvement, which could overcome complicated access routes through a lower bending stiffness. One possible approach for reducing the system profiles is the use of thin-walled tubular woven fabrics made of ultrafine multifilament yarns (≤20 dtex) as graft material.

Up to now, it has not been possible to process the fine yarns with the required high thread density (>200 threads/cm) and the available weaving technology in order to guarantee sufficient tightness against blood.

In his master's thesis, Kai-Chieh Kuo made high-density tubular weaving of ultra-fine filament yarns possible for the first time by means of suitable modifications to a shuttle loom as well as adaptations in the weaving preparation. In particular, he developed a new innovative reed technology that reduces warp thread friction during the shedding process and thus improves the process stability of the dense tube weaving process of fine yarns.

With the help of the process modification, it was then possible to produce high-density, thin-walled tubular woven fabrics, which were positively evaluated with regard to their suitability for a stent graft. Above all the potential of these tubular fabrics lies in their extremely thin-walled fabric profile, which seals well against blood. By using these new types of tubular fabrics as graft material for stent grafts, the system profile of the folded stent graft system can be reduced without having to compromise the blood tightness of the implant. The technology developed by Mr Kuo is not only applicable to stent graft systems, but also offers great possibilities for use in all other endovascular implants such as trans catheter heart valves, covered stents and small-lumen vascular prostheses.

Fibre Extrusion Technology, UK is celebrating a successful INDEX20 nonwovens exhibition in Geneva, Switzerland, which closed on 22 October. Although the company has a long history in supplying meltspinning equipment for the nonwovens sector, this represents its first venture at a dedicated nonwovens show.
 
FET’s Managing Director, Richard Slack explains. “Techtextil and ITMA have previously been our main exhibitions of choice, but INDEX20 was an ideal vehicle for FET to launch our new laboratory scale spunbond system, which enables client development of nonwoven fabrics in a number of formats and polymers.”
 
FET already has spunbond systems in the field, including composite systems which utilise both spunbond and meltspun functions. The growth in global nonwovens technology, partly driven by demand for pandemic-related materials, is forecast to continue.
 
“We were delighted with the response at INDEX”, continued Richard Slack. “There was considerable interest shown in the new spunbond system and its potential for lab scale innovation. It’s clear that the industry is seeking new alternatives to synthetics at the moment, and our technology is able to assist with the testing and assessment of many of the new feedstocks being pioneered in this extremely inventive sector, where everyone is suddenly talking and cooperating with everyone else, regardless of whether they are generally competitors. We recorded in excess of 20 serious enquiries from totally new contacts and sectors, including blue chip companies in the hygiene, medical and packaging industries.”
 
“There were initial concerns about projected attendance figures, especially from China and USA companies, but we experienced good footfall from key decision makers, especially those from Europe. It was encouraging to at last experience the opportunity for face-to-face contact with old and new customers on a large scale and we are now starting to reap the benefits with enquiries continuing to flow in”.

Alchemie Technology, an innovator of low energy, waterless, textile dyeing and finishing technology, is calling on COP26 leaders to support the global fashion industry in the adoption of new manufacturing technology, which will dramatically reduce carbon emissions and fashion’s impact on climate change.

While the fashion industry is one of the most polluting on the planet, second only to oil and gas, and greenhouse gas emissions from textile dyeing at around 3% of global emissions outweigh that of all international flights and maritime shipping combined, it is an industry that can also reduce CO2 emissions the fastest, just by changing the way it dyes fabrics.  

Fabric dyeing is the most polluting part of fashion and activewear manufacturing, involving industrial scale dye baths and huge amounts of dye chemicals, steam, electrical power, and consequent high CO2 emissions.  Repeated washing of the dyed fabric, required to remove dye residue, is responsible for 20% of the world’s wastewater pollution and excess dye is discharged into waterways, affecting the health of some of the world’s poorest communities. In more regulated areas, water pollution is reduced through reliance on energy intensive water treatment plants.

However, an environmental step change can be achieved by adopting new digital technology that can dye fabrics with an 85% reduction in energy consumption and a dramatic 95% reduction of the 1.3 trillion litres of water currently used by the industry each year.

For example, dyeing one polyester shirt using current methods generates 4.5 litres of wastewater and produces 0.17 Kg of CO2, compared to low energy digital technology, which uses less than 0.2 litres of water and reduces carbon emissions to 0.03 Kg.  Multiply these numbers by the billions of garments dyed each year and the scale of the environmental problem, if nothing changes, is clear to see. Equally, the amount by which the textile industry can improve its carbon footprint is dramatic and can be done quickly if action is taken now.

Picanol has introduced its latest generation of airjet and rapier weaving machines, which have been called the “Connect” generation. These new generation weaving machines focus on connectivity and an increased level of data availability. With this new generation, Picanol is launching several new functionalities such as a digitalized Gripper stroke setting, Gripper tape monitoring, Climate control, Shed angle measurement, and fully integrated Power monitoring.

“Following the successful launch of our digital platform PicConnect earlier this month, we have now released a new generation of weaving machines, which are known as the Connect generation. Our Connect generation weaving machines can provide the correct data and are loaded with new and never-before-seen functionalities. This is clear proof that for Picanol “Driven by Data” is not just a slogan but a commitment. Not only have these innovations allowed us to make big improvements when it comes to our four design principles – Smart Performance, Sustainability Inside, Intuitive Control, and, of course, Driven by Data – but when combined with our new digital platform they will allow you to amplify your own intuition.” comments Johan Verstraete, Vice President Weaving Machines.

From now on, the range of Picanol weaving machines will have the “Connect” suffix. For the airjet weaving machines, this means: OmniPlus-i Connect and TerryPlus-i Connect, while for the rapier weaving machines, this means: OptiMax-i Connect and TerryMax-i Connect. These new machines are built around Picanol’s four main design principles:

Smart Performance
On the OptiMax-i Connect, Picanol has introduced a lubrication monitoring sensor in combination with a temperature sensor. The combined data they provide allow the user to make sure the gripper tapes are in optimal condition for maximum performance. As an option, a gripper stroke measurement sensor is also available. This not only dramatically simplifies the setting of the gripper stroke, but also enables the user to realize higher machine speeds when weaving reduced widths – a pure extra output combined with more user-friendliness.

Sustainability Inside
Even though it was 25 years ago that the Sumo Drive concept was launched, it remains the most powerful, versatile and energy friendly machine drive available. And it has been even further optimized. It features an optimized sheet metal package for lower energy consumption, optimized oil cooling circuit for a better performance and a built-in temperature monitoring. Moreover, the Connect machines can be equipped with a Power monitoring module, which allows the user to keep track of the power consumption of each machine over time. Every Connect machine also has a built-in ambient temperature and humidity sensor, which will help to optimize the climate control in the weaving shed at the lowest cost. And as raw material is the biggest cost factor, each machine can also be equipped with raw material use monitoring.

Driven by Data
As the machine has more sensors than ever before, it also generates more data. To enable a fast reaction to all these sensor data, the BlueBox control unit has been further optimized: better heat management guarantees short reaction cycles combined with the long lifetime of components. To have a good view of all of the data generated, a special sensor dashboard screen is available in the BlueTouch display: with a simple touch of the screen, the current and historical power consumption, temperature, humidity, material consumption, and – on the OmniPlus-i Connect – also the air consumption, can be monitored. The BlueTouch display is now also equipped with an Action center, an electronic logbook where all actions such as maintenance interventions can be logged or scheduled beforehand. The machine manual is now available on the BlueTouch display, and with the context-based help function the help pages related to the operation the user wants to perform appear with one touch of his/her fingertip. The built-in web browser even allows the user even to consult, for example, tutorial videos on the web to guide them through a setting procedure.

Intuitive Control
The Connect generation was designed to focus on what really matters: weave the highest possible grade A fabrics at minimal costs. A large set of tools have been installed to facilitate this goal. One of the most remarkable ones is the Harness frame stroke measurement – until recently, it was only available on the revolutionary SmartShed, but it is now also available on the cambox and dobby machines. Combined with the shed visualization and simulation, it offers a quantum leap in terms of optimizing the user’s shed settings without losing any time or taking any risks. The colors of the programmable Smart signal lights with stop timing functionality are now repeated around the push buttons, allowing even better visibility and the prioritization of interventions by the weaver. A full-fledged Access control system not only limits the access to certain pages and settings depending on the user, but also allows a tailored dashboard to be established for each user profile.

Composites Evolution exhibited at the Advanced Engineering 2021 show on 3rd - 4th November highlighting its range of prepreg and introducing a new thermoplastic tape manufacturing capability.

Composites Evolution is a developer, manufacturer and supplier of prepregs for the production of lightweight structures from composite materials. A flexible approach allows Composites Evolution to offer short lead times and low minimum order quantities, while decades of combined expertise ensure that in-depth technical support is on-hand when customers need it.

Showcased was a battery box from a high-performance luxury electric vehicle manufactured from Evopreg® PFC bio-based, fire-resistant prepreg, a rear wing from a Ginetta G56 GTA GT4 race car utilising Evopreg® ampliTex™ natural fibre prepreg, and parts fabricated from the company’s newly-launched Evopreg® PA thermoplastic tape range.

Composites Evolution has a family of specialist prepregs for various applications, including Evopreg® EPC epoxy component prepregs which are a range of pre-impregnated fabrics suitable for moulding into high-performance, lightweight, structural components; Evopreg® EPT epoxy tooling prepregs which have been designed to help composite tooling manufacturers improve the flexibility and efficiency of their tooling manufacturing processes; and Evopreg® PFC fire-retardant prepregs a 100% bio-derived alternative to phenolics for applications where fire performance is a critical requirement.

Evopreg® ampliTex™ combines Composite Evolution’s high-performance Evopreg® epoxy resin systems with Bcomp’s award-winning ampliTex™ flax reinforcements, to deliver a family of materials which offer outstanding performance for component applications.

Composites Evolution launched their new range of Evopreg® PA Thermoplastic Tapes at Advanced Engineering; these are manufactured from polyamide-6 (PA6) polymer with unidirectional carbon fibre and are suitable for automated tape laying, winding and compression moulding into high-performance, lightweight components.

Penn Textile Solutions GmbH is one of the world's leading manufacturers of elastic fabrics for under-wear, corsetry, sportswear and swimwear, as well as highly functional textiles for technical applications. The fully integrated company with its own warping, circular knitting, warp knitting, dyeing and finishing facilities currently employs around 150 people.

Penn has long relied on Mahlo
Penn has relied on the cooperation with Mahlo for years. The manufacturer of measuring, control and automation systems for web-shaped goods has decades of experience in the field of process control. Until the summer of 2020, the textile manufacturer had been using a basis weight measurement system in the stenter frame outlet with beta radiation and manual control. "When the krypton preparations had passed their half-life, we had to make a decision: Exchange or replace the system right away", says operations manager Franz Schütte. They sat down with Mahlo representatives and looked for the best solution. Since the systems had already reached a high operating age and the measurement was limited to the basis weight, a new concept was decided upon. "Mahlo made us the best price-performance offer." The new system should be even more efficient and easier to operate for the special makes..

The compression zones of the functional fabric create corresponding distortions within the textile surface in its raw state, which have to be smoothed out in the fixing process. This work is now taken over by a process control system. The Mahlo Famacont PMC-15 with two measuring points automatically controls the leading of the stenter frame by continuously and contactlessly determining the mesh density. In addition, the Patcontrol PCS-20 process control system ensures that the dimensions of the different zones are recorded and also automatically controlled. "The previous beta-radiation facility was not able to collect this kind of data," explains the Penn operations manager. Another important aspect for the textile manufacturer: the complete and costly radiation protection is no longer necessary with the new systems.

Despite very good experience with Mahlo in the past, every change naturally involves a risk. Penn did not have to rely on theoretical considerations, however, but carried out tests in advance with appropriate sample material in the Mahlo test laboratory. The results convinced the decision-makers.

With its resource-saving dyeing technology, We aRe SpinDye takes place in H&M's latest Innovation Stories collection called Co-exist.

The use of We aRe SpinDye's technology contributes to reducing both water consumption and CO2 emissions, which in turn leads to a lower impact on the world's ecosystem and creates conditions for our co-existence with nature.

Up to 24% of a garment's entire climate footprint occurs during dyeing. We aRe SpinDye's technology can reduce the consumption of the earth's resources in textile production. On average, the reduction of water is -75%, chemicals -90% and energy consumption and CO2 emissions -30%.

In just one year, the clothing industry uses 9 billion cubic meters of water (which is in line with the annual need for drinkingwater for the entire population of our planet) and 168 million tons of process chemicals to dye fabrics. We aRe SpinDye now hopes that more players in the industry will pay attention to the ways that are available when it comes to resource-efficient dyeing process and quickly implement this technology in their production.

"The enormous resource consumption in the dyeing process is a global problem that must be addressed on a broad front. It is therefore inspiring to work with major brands with an organization that is sensitive to cutting-edge expertise and at the same time shows a willingness to work together to achieve common goals", says Andreas Andrén, CEO of We aRe SpinDye.

Members of TMAS – the Swedish textile machinery association – are proving instrumental in pioneering new sustainable processes for the dyeing, finishing and decoration of textiles.

The wasteful processes involved in these manufacturing stages are only one component in the development of viable circular supply chains for textiles that are now being established in Sweden.

At the recent Conference on Sustainable Finishing of Textiles, held across three separate afternoons on September 30^th, October 1^st and October 7^th, delegates heard that Sweden will introduce extended producer responsibility (EPR) for waste textiles and clothing at the beginning of 2022, ahead of the adoption of a similar European Union-wide EPR system in 2025.

New fibers
Swedish companies are also active in the development of new fibers derived from waste clothing, building on the country’s legacy leadership in pulp and paper production.

At the Sustainable Finishing of Textiles Conference, however, it was said that all of the environmental gains made by such sustainable new fibers can potentially be cancelled out in the further processing they are subjected to – and especially in resource-intensive conventional dyeing, finishing and decoration.

TMAS members Baldwin Technology and Coloreel have both developed solutions to address this issue.

TexCoat G4
During the conference, Baldwin’s VP of Global Business Development Rick Stanford explained that his company’s TexCoat G4 non-contact spray technology significantly reduces water, chemistry and energy consumption in the finishing process. It consistently and uniformly sprays chemistry across a fabric surface and applies it only where needed, on one or both sides.

Instant coloring
Coloreel’s CEO Mattias Nordin outlined the benefits of his company’s technology which enables the high-quality and instant coloring of a textile thread on-demand and can be paired with any existing embroidery machine without modification. This enables unique effects like shades and gradient to be achieved in an embroidery for the first time.

International technology group ANDRITZ has received an order from Albaad Massuot Yitzhak Ltd. to supply a neXline wetlace hybrid line for their Dimona facilities, Israel. The line will produce a wide variety of pulp-based wet wipes and is scheduled for start-up during the third quarter 2023.

The state-of-the-art neXline wetlace hybrid is the perfect combination of inline drylaid and wetlaid web forming with hydroentanglement and drying, including quality control equipment and a Metris Industry 4.0 package. All components will be delivered by ANDRITZ and are designed to produce first-class fabrics, including biodegradable, carded-pulp and flushable/dispersible nonwovens for end uses as wipes.

Tobias Schäfer, Vice President Sales at ANDRITZ Nonwoven, comments: “Our innovative production line gives Albaad enormous flexibility in the production of wipes. In addition, the Metris digitalization package by ANDRITZ will provide Albaad with highly efficient and smart operation.”

Dan Mesika, CEO and President of Albaad, says: “We are dedicated to developing new products – such as eco-friendly, biodegradable wipes. As pioneering manufacturers of our Hydrofine® flushable wipes, we are committed to environmental sustainability. Thanks to the new ANDRITZ line, we will enlarge the product portfolio at our Dimona production site with innovative fabrics and high efficiency.

Gadi Choresh, President of the Nonwovens Division at Albaad, says: “Our knowledge and experience in drylaid and wetlaid technology, together with the state-of-the-art equipment supplied by ANDRITZ, will enable us to provide the market with natural-source nonwovens and the best answer to the market demand.”
 
Albaad is one of the world’s three largest wet wipe manufacturers and is committed to delivering excellent wipes for every need. The company runs world-leading production facilities on three continents, each equipped with the latest technologies. Albaad produces spunlace and flushable fabrics in its facilities as well as purchasing from other roll goods suppliers in order to support production of a wide variety of wipes.