From the Sector

Flexibility, product uniformity and automation are the keys to success for coating businesses in today’s rapidly-changing technical textiles industry, explained Jürgen Hanel, Monforts Head of Technical Textiles, at the recent 1st World Congress on Textile Coating.

Introducing the latest Montex®Coat magnetic roller coating option to virtual delegates from around the world at the conference organised by International Newsletters, Hanel explained why this technology makes perfect sense now

“The magnetic roller system allows a wide range of coatings and finishes to be carried out, while being easy to handle for operators and much easier to clean at the end of the process,” he said. “It provides textile finishers with an expanded range of options due to the fully-adjustable positioning of the magnet within the roller and with four different magnet positions possible, can be set to operate both as a direct coating system and as an indirect coater.”

With traditional dip coating systems, he added, as well as with many standard knife coating technologies, there is always a difference in the tension between the centre and the edges of the wide width fabrics being treated – and hence the amount of pressure with which the coating is applied. With the use of a magnetic roller, equal pressure is applied across the full width of the fabric, with consistent results even at wide widths of over 2.4 metres. In addition, adjusting the roller surface, rather than changing the coating formulation to match the required add-on and viscosity for each coating effect required, leads to much higher output from the line.

Cleaner and less wasteful
The contribution of such flexible and resource-saving new technologies to a cleaner and less wasteful textile industry was a key theme at the congress – held virtually across the four afternoons of February 11th, 12th, 18th and 19th – as was digitalization and the many advantages it is providing.

“A typical integrated Monforts coating line is automated from the inlet feed to the winder,” Hanel told delegates. “Adjustments can also be made simply and easily from the touchscreen and with the new hand-held remote controller which has recently been introduced for the Montex®Coat unit.”

Manual adjustment, he added, is time consuming and needs the attention of an experienced operator or the reproducibility will not be accurate between coating operations. The adjustment by motors allows each coating to be stored and downloaded again for 100% reproducibility.

The motors can be fully controlled from the touchscreen and all necessary adjustments carried out remotely, making switching from one process to another extremely quick and easy.
The accuracy that is now being demanded by today’s most exacting customers is met with an optional carbon fibre roller – especially in dealing with the winding tension required in the processing of materials such as prepregs for composites and other heavyweight fabrics. Typical applications for the Montex®Coat include the finishing of tents and awnings, black-out roller blinds and sail cloth, automotive interior fabrics and medical disposables. Full PVC coatings, pigment dyeing or minimal application surface and low penetration treatments can all be accommodated.

“The World Congress on Textile Coating was characterised by some very stimulating presentations and forums between the speakers and a global audience of textile specialists,” Jürgen Hanel concluded. “It truly reflected the high level of positive changes now taking place in not just textile coating, but the entire textile industry. I look forward to the next edition, which hopefully will be a face-to-face event for even deeper level discussions and debate.”

• World Congress on Textile Coating, to take place on 11-12 & 18-19 February 2021.

The conference organisers have developed a well-structured programme of five sessions over four days with live discussion forums following each session for maximum attendee participation.

“The programme aims to be inspiring and informative, and will showcase the best innovations and collaborative actions in the industry. Functionality can be added to textiles and nonwovens at the beginning or the end of the supply chain, with an increasing range of raw materials, offering many options when designing and realizing a high-performance fabric. At the other end, there are many ways, such as applying a coating, to add functionality to an otherwise finished product. For example, the current pandemic has prompted new commercial anti-viral processes and four such presentations will outline the impact on industry and its response to the global pandemic,” says Dr Nick Butler, head of the conference organising committee.

World Congress on Textile Coating will feature time dedicated to networking, encouraging attendees to interact with conference speakers and industry peers throughout the online programme, offering the opportunity to expand professional networks. All the presentations and discussion forums will be recorded for post-event viewing. Event sponsors imogo AB, Lamberti SpA, JX Nippon ANCI and Weitmann & Konrad GmbH & Co. KG will give individual presentations and host Q&A during the four days of the event.

For the full programme, speakers and abstracts please visit https://www.technical-textiles.online/WCTC.

• Composite textiles for modern mobility
• Extremely lightweight, high tensile components by vombaur

In the snow, on a plane, in an electric vehicle or on a bicycle: no matter where and how we are on the road – composite textiles by vombaur ensure that we make good progress. With materials that are both extremely light and extremely reliable.

Lightweight components for modern mobility
Modern mobility relies on high-tech lightweight components Narrow textiles by vombaur are woven from high-performance fibres. On looms that are specially made for particularly demanding composite textiles: the textile company uses special machines to produce high-tech woven tapes with closed selvedges and elasticated UD tubulars that retain their 0° orientation over the entire length of the component – regardless of the diameter. Since they do not exhibit undesired break points caused by seams or welding, they not only have a particularly high bursting strength, they are also extremely reliable and durable.

Challenging applications
"From snowboards to aerospace – the applications for our composite textiles are demanding; the mechanical, chemical and thermal requirements are extreme," explains COO Christoph Schliefer. "As a development partner, we at vombaur are therefore often involved in product development at an early stage. We specify our woven tapes and tubulars individually for each project to suit the specific task at hand."

High quality raw materials, wide variety of geometries
The variety of shapes is virtually unlimited. vombaur manufactures 3D fabrics for composites in individual special shapes from carbon, aramid, glass or hybrids. Curves, edges, tubulars, spiral fabrics – the shape of the 3D fabrics, like the material itself, depends entirely on the task at hand. Powder or non-woven coatings create additional important properties.

Pioneering tech tex
"Developments in the field of modern mobility are happening at a rapid pace," emphasizes Schliefer. "With our composite textiles for extremely lightweight and high tenacity components, we at vombaur are also pushing these developments forward."

During the Innovate Textile & Apparel (ITA) virtual textile machinery show which will run from October 15th-30th 2020, Monforts will be emphasising its leadership position in three key fields – advanced coating, denim finishing and fabric sanforizing.

With its multi-head capability, the latest Monforts texCoat coating system provides flexibility with an unprecedented range of options and a wide range of modules available.

Refinements
“Since we acquired the coating technology that our systems are based on we have made a lot of refinements and all of them are reflected in higher coating accuracy and the resulting quality of the treated fabrics,” says Monforts Head of Technical Textiles, Jürgen Hanel.
“Our systems have the shortest fabric path from the coating unit into the stenter and we have all variations of coating application systems too – and all of these options are available in wider widths, with the engineering and manufacturing from a single source here in Europe.”

CYD
Denim finishing is meanwhile a field in which Monforts has an undisputed lead and it has been working closely with its many partners in the key denim manufacturing countries of Bangladesh, Brazil, China, India, Mexico Pakistan and Turkey to develop advanced solutions. The latest of these is the CYD yarn dyeing system.
“CYD is based on the proven Econtrol® dyeing system for fabrics*,” explains Monforts Head of Denim Hans Wroblowski. “It integrates new functions and processes into the weaving preparatory processes – spinning, direct beaming, warping and assembly beaming, followed by sizing and dyeing – in order to increase quality, flexibility, economic viability and productivity. The CYD system has been developed in response to a very strong market demand.”

Pre-shrinking
Monforts has also recently delivered a significant number of its latest Monfortex sanforizing lines to customers around the world.
Sanforizing is vital to final fabric quality, pre-shrinking it by compressing prior to washing, to limit any residual or further shrinkage in a made-up finished garment to less than 1%, for perfect comfort and fit over an extended lifetime.

As with industry-leading Montex stenters, Monfortex lines benefit from the latest Qualitex 800 control system which allows all parameters to be easily automated via the 24-inch colour touchscreen, including production speed, control of all fabric feed devices, rotation spray or steaming cylinder options, the width of the stretching field and the rubber belt pressure. Up to 10,000 separate process parameter records can be generated and stored by the data manager.

*Econtrol® is a registered mark of DyStar Colours Distribution GmbH, Germany.

Archroma, a global leader in color and specialty chemicals towards sustainable solutions, has joined hands with Liberty Textile Mill Limited (Liberty), a leading producer in healthcare textiles to produce high quality personal protective equipment (PPE).

Liberty will be benefitting from Archroma’s specialty solutions for hygiene protection, and well-established technical expertise in the area of medical textiles. Amidst the COVID-19 pandemic, the PPEs manufactured by Liberty are aimed at easing the current shortage of PPEs for medical professionals in Pakistan.

Liberty carries over two decades of experience in medical textiles and exporting them all over the world. Its partnering with Archroma is a major step forward towards creating enhanced protection in the current crisis. With its advanced scientific knowledge and technical expertise, Archroma provides a complete set of specialty chemicals required to produce PPEs, in particular in the area of antimicrobial and barrier coatings. The project will assist in enhancing medical standards in hospitals, isolation centers and intensive care units, in Pakistan and, very soon, worldwide.

“By continuously challenging the status quo, we at Archroma are able to support our customers operating in or entering the area of medical textiles, with a holistic and expert approach to hygiene protection. With our collaboration with Liberty, we are so proud to be able to bring state-of-the art protection to health professionals and the general public,” comments Mujtaba Rahim, CEO of Archroma Pakistan.

“Liberty has a presence of more than five decades with high achieving accolades. Our processing units are fully equipped with latest equipment complying with international standards. We take this new partnership with Archroma as a start of building a strong relationship in the area of medical textiles. The COVID-19 pandemic has given a wake-up call to work extensively towards enhancing healthcare facilities. We are looking forward to new innovations in producing top-class PPEs,” adds Taimoor Mukaty, Director of Liberty Textile Mills Limited.

Following the successful commissioning of two new Monforts Montex wide-width stenter lines and additional environmental management equipment at its plant in Germany, GtA – Society for Textile Equipment GmbH – is aiming to be the first textile finishing company to become entirely CO2-neutral in the manufacture of all of its products by 2025.

GtA is a partner company to Germany’s large-format digital printing fabric leader, Georg and Otto Friedrich GmbH, which has has this year been able to considerably expand its portfolio due to the new Monforts lines.

Headquartered in Gross-Zimmern, close to Frankfurt, Georg and Otto Friedrich GmbH and its partners in Germany have an annual production of 37 million square metres of warp knits for a range of end-use applications, including garments, automotive interiors and technical textiles, but increasingly with a concentration on digital printing substrates.

Fault-free textiles

A new standard in pure white, 100% clean and fault-free textile substrates has been demanded by this market in recent years due to the rapid growth in digitally-printed banners and billboards – often referred to as ‘soft signage’.

The substrates of choice for digital printing are 100% polyester warp knits which are resilient and allow excellent take-up of inks, and vibrant colours and clear and precise images to be achieved with digital printing techniques. The knitted construction also has the advantage of elasticity, which is a plus in terms of flexibility for installers.

Critically, the warp knitted fabrics have extremely smooth surfaces which is becoming increasingly important due to the general move away from PVC coatings which were the standard in the past.

It was to finish these fabrics for Georg and Otto Friedrich GmbH as well as providing such services for many other customers, that the GtA plant in Neresheim, Baden-Württemberg, was established in 2015.

The purpose-built plant on a greenfield site was initially equipped with a fully-automated, 72 metre long Monforts installation comprising a washing machine integrated with a 3.6 metre wide, seven-chamber Montex stenter. The line quickly went from single to double shift production and then to 24/7 operation  to meet demand.

Expanded widths

Building on the success of this installation, GtA has now installed two more Montex stenter lines – both in expanded working widths of 5.6 metres and purpose-built at Montex GmbH in Austria.

A six-chamber Montex unit is combined with a washing machine to guarantee the purity of the substrates, while a five-chamber line is integrated with a wide-width coating machine. This new coating capability at GtA has led to a number of new additions to the Georg and Otto Friedrich DecoTex range for digital printing, including wide width fabrics with flame retardant, antimicrobial and non-slip finishes.

The new Montex stenter lines benefit from all of the latest innovations from Monforts, including the Smart Sensor system for the optimised maintenance planning of key mechanical wear components on the stenters. A comprehensive overview of the condition of all parts at any time is now available for operators within the highly intuitive Qualitex visualization software.

With Qualitex, all article-specific settings can be stored and the formulations for thousands of treatment processes called up again at any time. Individual operators can also personalise their dashboards with the most important machine functions and process parameters.

Environmental commitment

GtA is run by a seasoned team of textile professionals led by Managing Director Andreas Niess.

“We have received excellent service from Monforts from the outset and we were happy to place the order for these two new lines as part of our ongoing cooperation,” he says. “With all of the latest Monforts advances in technology we are fully in control of all production and quality parameters with these lines, as part of our significant commitment to innovative environmental technology.”

The GtA plant, which operates in near-cleanroom conditions, has also been equipped with proprietary technology to fully exploit the Monforts air-to-air heat recovery systems that are now standard with Montex stenters.

“Around 30 per cent of our investment volume at the site goes to energy-saving measures and we are sure that this commitment is worthwhile,” Mr Niess says. “As an example, our integrated heat recovery system fully exploits the waste heat from the process exhaust air and the burner exhaust gases of the Monforts stenters, allowing us to achieve an exhaust air temperature of  between 30 to 34°C, compared to what would conventionally be between 140 to 160°C. Another focus has been on exhaust air purification technology and here too, the latest technology has been installed with integrated heat recovery elements.”

This, he adds, saves 52% of the energy that would normally be used – equating to 5,800,000 KwH per year. The necessary audits for energy-efficient companies are also carried out annually.

In addition, GtA has purpose-designed the automatic chemical mixing and dosing systems that feed the padders for the key treatments that are carried out on the fabrics through the stenters.

The company is going further, however, in its pursuit of clean production and raw materials.

"We want to be an asset and not a burden on our immediate environment and therefore do not use any additives containing solvents," Mr Niess says. “We were the first to use fully halogen-free flame retardant chemistry, and we use bio-based, finely ground alumina products for the washing process instead of surfactants. PES polyester yarns made from recycled material are also increasingly used and the latest additions to our raw materials portfolio, the RC-Ocean products, are made from recycled sea plastic.

“We are now planning a combined heat and power plant for the production of electrical energy and heat and we will also build a photovoltaic system that converts solar radiation into electrical energy. GtA wants to be the first textile finishing company to be CO2-neutral in the manufacture of all of its products by 2025. The complete heat supply and heating for the 13,000 square metre production hall, as well as the office building and the hot water supply for the domestic water, is already energy-neutral. We are convinced that this commitment will pay off in the long term and our positive business development proves that sustainability and business profitability are perfectly compatible.”

In addition to the products for Georg and Otto Friedrich GmbH, GtA  offers its manufacturing capacities for other customers as a contract service.

All products are manufactured in accordance with Öko-Tex Standard 100, product class 1 and the company is also involved in the research and development of new sustainable manufacturing processes, in cooperation with many regional universities and funding project partners.

Monforts has recently been involved in a number of R&D trials aimed at improving the performance of the fishing cage nets employed in fish farming operations at its Advanced Technology Centre (ATC) in Mönchengladbach, Germany.

The cultivation of both freshwater and saltwater fish populations under controlled conditions is a global industry valued at around $200 billion annually and only made possible with the use of huge aquaculture nets.

Biofouling
“These nets are very prone to biofouling and to avoid its negative impacts, high-pressure robotic jets are now used to clean them,” explains Monforts Head of Technical Textiles Jürgen Hanel. “Net cleaning is expensive and can also damage current antifouling coatings on the nets, causing contamination as well as fish health and welfare risks.
The development of more effective antifouling coatings for fishing cage nets has been one aspect of R&D work at the Monforts ATC, while the use of how alternative fibres could potentially be coated or finished to replace the polyamide which is currently most widely used has also been explored.
The issue of plastics and synthetic fibres in the oceans has generated global media attention recently, and the aquaculture industry is exploring all avenues that will lead to more sustainable practices.

Expansions
Since its opening in 2013, over €3 million has been invested in equipment at the Monforts ATC, which over an area of 1,200 square metres houses two full finishing lines, engineered to accommodate an extremely diverse range of processes, in addition to a Thermex range for the continuous dyeing of denim.

THE S/S 2021 SMART COLLECTION AND STRATEGY: “TEAMING UP IS THE RESPONSIBLE WAY FORWARD”
At Première Vision in Paris, February 11th – 13th Jersey manufacturer TINTEX presents its S/S 2021 collection and a new strategic approach to make the world a better place, a garment at a time in  Hall 5 Booth R50/S43, and Hall 3 Smart Creation Booth S7. “That’s why we decided to update our statement-motto in Naturally Advanced Evolution: a promise and an invitation to work together to develop further collections combining an environment-driven approach with cutting-edge technology.” Says Ricardo Silva, Head of Operations of TINTEX.

“Textile producers and fashion brands should develop their partnership in a much more collaborative way.” Say Says Ricardo Silva, Head of Operations of TINTEX. In a move towards his partners, the company has re-organised its products collection into 4 distinct categories and further evolved its production process in order to guarantee the highest quality and performance of its fabrics and, at the same time, to become more competitive and to allow its clients to orientate better and easily find the most suitable and practical solution. COLLECTION focuses on seasonal proposals while EXPRESSIONS includes a range for all-year-round collections.

THE SS 2021 COLLECTION is imbued with sustainability, innovation and a collaborative attitude. The new range comprises 24 new references built focusing on responsible materials – including recycled or recyclable (100% same raw material), tactile finishes and active performances with smart and cutting-edge technical background. “The main area we developed for the S/S 2021 collection was carefully selected starting from the inputs we had from our partners during some of the most successful collaborations in the past 2 years,” adds Ana Eusebio, designer.

And just to keep the conversation about sharing innovation at best, TINTEX is officially shading the light on its Coating Unit that, thanks to continuous investments, will be able to deliver Naturally Advance Solutions in terms of finishings, not just for TINTEX but also for woven producers that are aligned with the corporate commitment. Come to discover TINTEX portfolio of smartly developed coatings at its booth at Smart Creation, hall 3.

A new generation of ecological PU coatings with water vapour permeability

Today, nearly all “breathable“ PU direct coatings are applied from solvent systems. These products partly contain very harmful and environmentally hazardous solvents.
To solve the “solvent“ problem, RUDOLF GROUP developed ECO-VENT®:

A water-based coating solution that opens up new perspectives for numerous coated fabrics, which are permeable to water vapour and, thus, breathable.
The optimum PFC-free, waterproof and breathable protective clothing can be finished with RUDOLF’s cluster of supreme technologies:

• Outer fabric finished with BIONIC-FINISH®ECO
• Direct coating made from ECO-VENT®
• Lining with moisture control due to hydrophilic HYDROCOOL®

The EU-funded Project, in which Devan Chemicals is a key partner, held a kick off meeting end of February 2019 at the EU Commission in Brussels, Belgium. The project consortium, led by Belgian R&D centre CENTEXBEL, consists of 17 European partners from across the value chain including design, manufacturing, NGOs, and research and innovation.

The focus of the consortium is on coated and painted textiles and plastic materials which are currently not recyclable. Ambitious plastic recycling targets of 50% have been set by the European Plastics Industry, and to meet these targets, smart solutions to enable the circular use of textile and plastic parts with multi-layer coatings must be considered.

DECOAT has therefore been established to investigate triggerable smart polymer material systems and appropriate recycling processes. The solutions will be based on smart additives (like microcapsules or microwave triggered additives) that will enable the efficient of coatings and other finishes, activated by a specific trigger (heat, humidity, microwave, chemical) to permit recycling.        

Devan’s specific role is in the development of microcapsules that will release its active core on application of a certain trigger (e.g. heat) at the end of life of the article. This active core material may be something that, for example, will promote the detachment of different coating layers (by separating them), opening the possibility for recyclability/re-use of the base materials. Different active core ingredients will be evaluated, and Devan will develop processes for each type of core ingredient and for each type of coating layer/matrix.

The bold aim of the four-year project is to decrease landfill by 75% of coated articles that are presently difficult to recycle, such as clothing, electronic goods and automotive components. A reduction in the carbon footprint by at least 30% for the considered products is aimed for. By enabling the recycling of such materials, DECOAT is expected to generate in the medium term a new market valued at over 150 million Euros in Europe.