From the Sector

Researchers at the ITA, the University of Bonn and Heimbach GmbH have developed a new method for removing oil spills from water surfaces in an energy-saving, cost-effective way and without the use of toxic substances. The method is made possible by a technical textile that is integrated into a floating container. A single small device can remove up to 4 liters of diesel within an hour. This corresponds to about 100 m2 of oil film on a water surface.
 
Despite the steady expansion of renewable energies, global oil production, oil consumption and the risk of oil pollution have increased steadily over the last two decades. In 2022, global oil production amounted to 4.4 billion tons! Accidents often occur during the extraction, transportation and use of oil, resulting in serious and sometimes irreversible environmental pollution and harm to humans.

There are various methods for removing this oil pollution from water surfaces. However, all methods have various shortcomings that make them difficult to use and, in particular, limit the removal of oil from inland waters.

For many technical applications, unexpected solutions come from the field of biology. Millions of years of evolution led to optimized surfaces of living organisms for their interaction with the environment. Solutions - often rather unfamiliar to materials scientists and difficult to accept. The long-time routine examination of around 20,000 different species showed that there is an almost infinite variety of structures and functionalities. Some species in particular stand out for their excellent oil adsorption properties. It was shown that, e.g., leaves of the floating fern Salvinia molesta, adsorb oil, separate it from water surfaces and transport it on their surfaces (Figure 1, see also the video of the phenomon.).

The observations inspired them to transfer the effect to technical textiles for separating oil and water. The result is a superhydrophobic spacer fabric that can be produced industrially and is therefore easily scalable.

The bio-inspired textile can be integrated into a device for oil-water separation. This entire device is called a Bionic Oil Adsorber (BOA). Figure 2: Cross-section of computer-aided (CAD) model of the Bionic Oil Adsorber. The scheme shows an oil film (red) on a water surface (light blue). In the floating cotainer(gray), the textile (orange) is fixed so that it is in contact with the oil film and the end protrudes into the container. The oil is adsorbed and transported by the BOA textile. As shown in the cross-section, it enters the contain-er, where it is released again and accumulates at the bottom of the container. See also the video regarding the oil absorption on the textile, source ITA).
 
Starting from the contamination in the form of an oil film on the water surface, the separation and collection process works according to the following steps:

• The BOA is introduced into the oil film.
• The oil is adsorbed by the textile and separated from the water at the same time.
• The oil is transported through the textile into the collection container.
• The oil drips from the textile into the collection container.
• The oil is collected until the container is emptied.

The advantage of this novel oil separation device is that no additional energy has to be applied to operate the BOA. The oil is separated from the surrounding water by the surface properties of the textile and transported through the textile driven solely by capillary forces, even against gravity. When it reaches the end of the textile in the collection container, the oil desorbs without any further external influence due to gravitational forces. With the current scale approximately 4 L of diesel can be separated from water by one device of the Bionic Oil Adsorber per hour.

• It seems unlikely that a functionalized knitted spacer textile is cheaper than a conventional nonwoven, like it is commonly used for oil sorbents. However, since it is a functional material, the costs must be related to the amount of oil removed. In this respect, if we compare the sales price of the BOA textile with the sales prices of various oil-binding nonwovens, the former is 5 to 13 times cheaper with 10 ct/L oil removed.
  Overall, the BOA device offers a cost-effective and sustainable method of oil-water separation in contrast to conventional cleaning methods due to the following advantages:
• No additional energy requirements, such as with oil skimmers, are necessary
• No toxic substances are introduced into the water body, such as with oil dispersants
• The textiles and equipment can be reused multiple times
• No waste remains inside the water body
• Inexpensive in terms of the amount of oil removed.
• The team of researchers from the ITA, the University of Bonn and Heimbach GmbH was able to prove that the novel biomimetic BOA technology is surprisingly efficient and sustainable for a self-controlled separation and automatic collection of oil films including their complete removal from the water. BOA can be asapted for open water application but also for the use in inland waters. Furthermore, it is promising, that the textile can be used in various related separation processes. The product is currently being further developed so that it can be launched on the market in 2-3 years.

OETI – a member of the internationally active TESTEX Group – has bought the German company ECS to expand its service portfolio in the field of personal protective equipment (PPE).

OETI has been offering testing services for textile work clothing since 1983 – for about 40 years. Since the introduction of CE labelling for personal protective equipment and the enactment of the PPE Directive by the European Union in 1993, OETI has not only been testing textile personal protective equipment, but now on also certifies it in conformity with EU standards. In 1995, OETI was certified in Brussels as a Notified Body (0534) for type-examinations and quality assurance monitoring of personal protective equipment end products. Testing and certification is carried out in accordance with the current PPE Regulation (EU) 2016/425.

Testing and Certification Body for Eye and Face Protection, based in Aalen, was founded 15 years ago and is a globally active institution for testing and certification of eye and face protection equipment. The company is one of the leading independent testing institutions for personal protection products in laser applications and for welding work.

ECS tests and evaluates occupational health and safety goggles with and without a filter action, passive and active switching protection filters and shields for welders, and laser protection filters, goggles, and shields. The company also tests the optical properties of sunglasses, sports glasses, ski goggles, swimming goggles and motorbike goggles.

With OETI’s takeover, the ECS location in Aalen is retained, and all employees will continue working at ECS. The new Managing Director of ECS GmbH as of 1 July 2023 is Dipl.-Ing. Rolf Diebolder.

‘We are present on the European market, on the American market and, via a representative office, on the Chinese market. With the aid of the new distribution channels through OETI and TESTEX, we want to steadily advance ECS’ expansion and be present on all five continents’, says Managing Director Rolf Diebolder, explaining his strategic plans for ECS. ‘I would like OETI and ECS to develop a joint strategy in order to be able to offer existing and new customers of both companies a complete package which, when combined, will give us a unique selling point in the marketplace’, says Diebolder.

Diebolder also sees further potential in the cooperation with regard to protective laser clothing. According to him, this is where the laser laboratory commissioned by ECS could be used to make textiles laser-safe. In the future, there will be more and more ‘hand-held’ devices, i.e. laser welding devices, for which gloves and protective jackets are needed.

• Focus on the guiding principle of "textile intelligence" and sustainability

Long before sustainability became a trend in the textile industry, Schoeller Textil AG, which has been innovating technical fabrics and smart textile finishing technologies for more than 150 years, made it its mission to develop textile innovations in harmony with nature. Now the company is undergoing an extensive rebranding, whilst unveiling its strong brand foundation in the process. The result embodies the newly defined guiding principle of “Textile Intelligence” - the development and successful implementation of innovative textiles and intelligent textile technologies.

Innovations in the textile industry must meet requirements on several levels – offering both new and optimized solutions to sociological, ecological, and economic challenges of our time. Creating this holistic added value is firmly rooted in the Schoeller brand origin and is still the top priority in textile product development today. The brand essence has thus remained the same, but it has been embodied anew.

“At the beginning of the rebranding process, it was clear to us we had to root ourselves in (Swiss) tradition in order to fully realize Schoeller’s entire brand potential and successfully explore new, digital paths,” said Antonio Gatti Balsarri, Schoeller chief commercial officer.

“The goal of the rebranding is to communicate our traditional brand values in a completely new brand presence. The result was a sharpened brand profile, a clear brand strategy and tonality, as well as a clean, modern corporate design. We will specifically address our sustainability commitment through the expansion of digital touchpoints, their cross-media use, and an increased online presence. Simplified, straightforward, sustainable - in accordance with our greatest source of inspiration: nature.”

Transparency and Sustainability
Paramount to Schoeller’s corporate identity is the full disclosure of brand principles and transparency around all business divisions. A simplified logo design was established by reducing logo elements and colors for a modern look and feel that can be produced in a much more resource-efficient manner. Schoeller’s new brand mantra of “Textile Intelligence” speaks to its company mission of more than 150 years.

Schoeller has been a bluesign system partner from the very beginning and uses the Higg Facility Environmental Module (FEM) to assess sustainable performance. In addition to environmentally-friendly manufacturing processes and careful material selection, the highest quality and sustainability standards in production also mean guaranteeing fair working conditions. Schoeller follows a Code of Conduct that guarantees transparent production chains, environmental protection, and fair working conditions.

“Zero Textile Waste” becomes a targeted brand strategy. While the production of textiles and textile technologies is continuously being optimized to preserve resources, the manufacturing processes are often costly and complex. To this end, Schoeller offers new approaches to efforts around Zero Waste in the industry. Its new online shop, “Schoeller re-Fabric” sells textile remnants from production directly to designers and smaller productions to increase its overall production volume efficiency and avoid textile waste.

Following its deferral earlier this year, organisers announced that Cinte Techtextil China 2022 will take place from 7 – 9 December at the National Exhibition and Convention Center, Shanghai. The coming edition will address the latest trends, technologies and applications that are shaping the industry and market in the region.

“We are excited that Cinte Techtextil China is going ahead this year,” said Ms Wilmet Shea, Deputy General Manager of Messe Frankfurt (HK) Ltd. “The technical textiles and nonwovens sectors are constantly innovating, and congregating regularly to share new materials and knowledge is essential for the industry. For this reason, this year’s fair has attracted international and domestic exhibitors from Austria, Belgium, Mainland China, France, Germany, Hong Kong, Italy, the Netherlands, Spain, Sweden, Switzerland, Taiwan, and the US to grow their business in the enticing Chinese market.”

The Chinese market performance has remained strong amidst the pandemic. According to the China Nonwovens & Industrial Textiles Association (CNITA), China’s nonwovens output has an average two-year growth rate of 14.8% despite the decreased demand for anti-pandemic materials. In addition, China strengthened its position as one of the key drivers of the global technical textiles market due to the rapid expansion of the automotive sector in the country which stimulates high demand for technical textiles.
To help international buyers stay connected with the Chinese market, Match Plus, the fair’s online business matching platform, will support foreign buyers achieve their sourcing goals despite travel limitations.

The fair is organised by Messe Frankfurt (HK) Ltd; the Sub-Council of Textile Industry, CCPIT; and the China Nonwovens & Industrial Textiles Association (CNITA).

• The first year of TECHNYL® in China under the DOMO brand name; DOMO will be pushing forward its expansion plan of high-performance polyamides in China
• Continued innovation in engineered nylon materials for a sustainable future

DOMO Chemicals announced a long-term investment plan in China to continue expanding its production capacity of TECHNYL® high-performance polyamides. This plan aims to meet growing demand in the automotive, electrical & electronics, and industrial consumer goods industries, and help build a sustainable future. DOMO Chemicals acquired Solvay's Performance Polyamides business in 2020 and has sold the TECHNYL® products globally since February 1, 2022, including in China, one of the company's key strategic markets.

The global demand for polyamide materials is currently booming at a CAGR of up to 3 percent. The adoption of new energy vehicles (including pure electric, hybrid and fuel cell vehicles) is expected to reach 45 percent globally by 2030, and automakers are increasingly using sustainable materials to make components, which are key growth drivers of the polyamide market. In addition, the demand for miniaturized circuit breakers, contactors, plug switches, and other components in the electrical and electronics and industrial consumer goods industries further opens up the application potential for polyamide materials.

DOMO Chemicals will continue to expand the capacity of its production site in Jiaxing, Zhejiang Province, which has been planned to be gradually introduced in three stages:

• Since March 2022, an additional 6,000 tons of capacity has been made available, with the plant achieving the total capacity of 14,000 tons of PA6 from April onwards.
• A 35,000-ton new plant in Haiyan is planned to be completed in the third quarter of 2023, in which DOMO Chemicals has invested more than 14 million euros (97 million yuan).
• Going forward, DOMO Chemicals will further expand the plant, gradually increasing its capacity to 50,000 tons.

In addition to the expansion, the plant will also use renewable energy wherever possible, adopt advanced water and air treatment technologies to reduce water consumption and CO2 emissions, and fully comply with Health, Safety and Environmental Management System (HSE) regulations. DOMO Chemicals will improve HSE compliance continuously and work closely with the local government, while partnering with key local and global customers to accelerate innovation and development across a wide range of industries.

TECHNYL® has been committed to helping customers improve their low-carbon competitiveness since its very first year in China. It allows OEMs and component makers in the automotive, electrical & electronics, and industrial consumer goods segments to create lightweight, durable, aesthetically pleasing, smart and environmentally-friendly products.

• Hightech textiles for future-oriented construction projects

Building shells, bridges, staircases, façades ... construction projects are exposed to enormous mechanical loads. Often there are also considerable climatic or environmental influences. This has prompted the increasing use of fibre-reinforced materials in construction projects. After all, besides many other exciting properties, they offer high mechanical rigidity, low weight and excellent corrosion resistance.

Tapes, tubulars, sections and 3D woven textiles by vombaur form the perfect basis for these innovative building materials. The seamless round or shaped woven narrow textiles made of high-performance fibres are extremely loadable because they have neither seams nor welds – and therefore no undesirable breaking points. Their surface properties are identical over the entire length. In challenging tasks, composite textiles by vombaur offer a lightweight solution that is as reliable as it is durable.

Safe and durable solutions for challenging applications
The potential applications for lightweight components in the construction industry are as numerous as the project ideas of the planning and construction teams.
•    Ropes and tensioning elements made of carbon fibre reinforced plastic (CFRP)
•    Reinforcement of building structures made of concrete, steel, wood or other materials
•    Sustainable restructuring of constructions and urban districts for bridges and buildings
•    CFC slats as reinforcements in case of repairs
•    (Filled) GRP pipes made of seamless round woven tubes by vombaur as columns/pillars
•    CFRP sections as steel girder substitutes
•    Hollow profiles with individually designed cross-sections
•    Glass fibre reinforced connecting elements for glazing to minimise expansion differences between the connecting element and the glass
•    Individual light wells

Implementing visions – with composite textiles by vombaur
As your development partner, vombaur facilitates innovative composites projects for challenging applications. In innovative and safety-sensitive industries such as automotive and aviation, chemical and plant engineering.  The composites experts at vombaur develop, create samples of and manufacture woven tapes and seamless round or shaped woven textiles by vombaur – in collaboration with the customer's enterprise development teams and individually for the respective projects. This is how novel and unique lightweight components made of high-performance textiles are created for visionary lightweight construction projects.

"Fibre-reinforced composites are the ideal material for future-oriented construction projects," explains Dr.-Ing. Sven Schöfer, Head of Development and Innovation at vombaur. "Their outstanding technical properties and design possibilities open up new and fascinating perspectives for construction projects. From building construction to civil engineering, from bridge construction to interior design. As an experienced development partner for sophisticated lightweight components, we at vombaur contribute our seamless solutions to these kinds of future-oriented projects."

COBRA International is pleased to confirm its continued partnership with Fliteboard as the builders of the new Fliteboard Series 2.  

Conceived in 2016, the Fliteboard range of electric foiling surfboards has established a leading position in the eFoil market. In early 2021, Fliteboard announced a package of evolutionary improvements to the original award-winning design for which COBRA has installed significant additional manufacturing capacity.

With Fliteboard growing rapidly, and thousands of boards now delivered across more than 80 countries,  COBRA will continue to support Fliteboard with additional moulds and lean manufacturing production lines added to reduce customer lead times. In addition to this production capacity expansion, COBRA has successfully met the technical challenges set by the Fliteboard team to incorporate all the new Series 2 board features into the existing production processes.

Fliteboard’s first composite models used a carbon fibre and Innegra sandwich laminate over a moulded EPS foam core, combining maximum strength, stiffness, and durability with a low overall board weight. The same construction concept is used for the Series 2 boards, with several new finishes added to the range along with lighter colour matched EVA deck pads and upgraded latches on the carbon fibre board lid. New wood grain and metallic paint finishes have been introduced with COBRA’s semi-transparent paint system used to save weight and display the stunning hexagonal weave pattern of the carbon and Innegra reinforcement fabrics.

The modern site in Gratkorn is one of the largest paper mills in Europe. With the portfolio expansion, Sappi will meet customer demands for base papers for non-wet-strength wet-glue and self-adhesive labels and keep pace with market growth. With more than 400 years of experience in paper production, the site in Gratkorn is renowned for high-quality, multi-coated fine papers used for graphical applications. Available capacity is being expanded gradually to include the production of Parade Label papers alongside existing graphical grades.

New products in the pipeline
The site in Gratkorn offers another benefit. The higher production capacity will enable the innovation leader Sappi to further expand its portfolio of label papers and open up new segments. This was previously not possible due to limited capacity at the existing locations. Michael Bethge, Sales Director Speciality Papers at Sappi, commented "In June of this year, we will launch Parade Label Pro in grammages of 80 and 90 g/m² following successful testing processes carried out internally and externally"

• Swiss weaving machinery manufacturers are in the forefront of novel application development

Shoes and electronic calculators are probably not the first products people would associate with the textile weaving process. But they certainly signpost the future for woven fabrics, as two examples of the ever-wider possibilities of latest technology in the field. Fashion and function already combine in the increasing popularity of woven fabrics for shoes, and this is a present and future trend. Calculators in fabrics? That’s another story of ingenious development, using so-called ‘meander fields’ on the back and keys printed on the front of the material.

These glimpses of the outlook for modern weavers are among the highlights of developments now being pioneered by Swiss textile machinery companies. All weaving markets require innovation, as well as speed, efficiency, quality and sustainability. Member firms of the Swiss Textile Machinery Association respond to these needs at every point in the process – from tightening the first thread in the warp to winding the last inch for fabric delivery. They also share a common advantage, with a leading position in the traditional weaving industry as well as the expertise to foster new and exciting applications.

Technology and research cooperation
The concept of a ‘textile calculator’ was developed by Jakob Müller Group, in cooperation with the textile research institute Thuringen-Vogtland. Müller’s patented MDW® multi-directional weaving technology is able to create the meander fields which allow calculator functions to be accessed at a touch. A novel and useful facility, which suggests limitless expansion.

Today, the latest woven shoes are appreciated for their precise and comfortable fit. They score through their durability, strength and stability, meeting the requirements of individual athletes across many sports, as well as leisurewear. Stäubli is well known as a leading global specialist in weaving preparation, shedding systems and high-speed textile machinery. Its jacquard machines offer great flexibility across a wide range of formats, weaving all types of technical textiles, lightweight reinforcement fabrics – and shoes.

It’s possible to weave new materials such as ceramics, mix fibers such as aramid, carbon and other, and produce innovative multi-layers with variable thicknesses. Such applications put special demands on weaving machines which are fulfilled by Stäubli high-performance TF weaving systems.

Great weaving results are impossible without perfect warp tension, now available thanks to the world-leading electronic warp feeding systems of Crealet. Some market segments in weaving industry today demand warp let-off systems which meet individual customer requirements. For example, the company has recognized expertise to understand that geotextile products often need special treatment, as provided by its intelligent warp tension control system. Individual and connective solutions are designed to allow external support via remote link. Crealet’s warp let-off systems are widely used in both ribbon and broadloom weaving, for technical textiles applied on single or multiple warp beams and creels.

Functional, sustainable, automated
Trends in the field of woven narrow fabrics are clearly focused on functionality and sustainability. The Jakob Müller Group has already embraced these principles – for example using natural fibers for 100% recyclable labels with a soft-feel selvedge. It also focuses as much as possible on the processing of recycled, synthetic materials. Both PET bottles and polyester waste from production are recycled and processed into elastic and rigid tapes for the apparel industry.

For efficient fabric production environments, it is now recognized that automated quality solutions are essential. Quality standards are increasing everywhere and zero-defect levels are mandatory for sensitive applications such as airbags and protective apparel.

Uster’s latest generation of on-loom monitoring and inspection systems offers real operational improvements for weavers. The fabric quality monitoring prevents waste, while the quality assurance system significantly improves first-quality yield for all applications. Protecting fabric makers from costly claims and damaged reputations, automated fabric inspection also removes the need for slow, costly and unreliable manual inspection, freeing operators to focus on higher-skilled jobs.

Smart and collaborative robotics (cobots) offer many automation possibilities in weaving rooms. Stäubli’s future oriented robotics division is a driver in this segment with first effective installations in warp and creel preparation.

Control and productivity
Willy Grob’s specialized solutions for woven fabric winding focus on reliable control of tension, keeping it constant from the start of the process right through to the full cloth roll. Continuous digital control is especially important for sensitive fabrics, while performance and productivity are also critical advantages. In this regard, the company’s large-scale batching units can provide ten times the winding capacity of a regular winder integrated in the weaving machine.

The customized concept by Grob as well as design and implementation result in great flexibility and functionality of the fabric winding equipment – yet another example of Swiss ingenuity in textile machinery.  
There is even more innovation to come in weaving – and in other segments – from members of the Swiss Textile Machinery Association in future! This confident assertion is founded on an impressive statistic: the 4077 years of experience behind the creative power of the association’s member firms. It’s proof positive that their developments grow out of profound knowledge and continuous research.

Kornit Digital announced Italy-based Creazioni Digitali, a printing service provider to some of the most prominent names in high-end fashion, is installing the Kornit Presto S with Softener Solution for rapid, pigment-based production on demand involving multiple fabric types in any quantity.

In addition to sublimation and acid and reactive dyes, Creazioni Digitali was one of the first textile providers to bring pigment printing to Italian fashion houses. In addition to providing more eco-friendly production processes, a shift towards pigment-based production is key to their expansion and industrial plans for 2021 to 2025.

Print-on-demand business models and pigment-based production are both effective means of reducing water use, and empowering fashion brands to align with international sustainability imperatives.

“We believe eco-friendly, pigment-based printing offers a wealth of possibilities for high fashion, and selected the Kornit Presto S based on its ability to deliver brilliant, high-quality imagery using the broadest color gamut, without need for pre- and post-treatments,” says Roberto Lucini, Owner and CEO of Creazioni Digitali. “We intend to grow our business as brands see what this technology can do, with the old calculations of quality versus responsible production practices giving way to a new landscape in which you can truly have both. This installation is one of more to come.”