From the Sector

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.

BTMA member Sellers Textile Engineers is marking its 110th anniversary this year with the introduction of a new concept in carpet shearing, as the essential final step in ensuring tuft uniformity and ‘just new’ freshness in finished carpet rolls.

The company has for many years offered two options in the construction of its shearing cylinders – the first, namely the ‘strap-on’, incorporates spiral blades bolted to the cylinder body and the second, known as the ‘caulked-in’, includes spirals which are fixed very securely in a machined groove within the machine.

The new Sellers’ Hybrid Shearing Cylinder combines the benefits of both, resulting in an improved cut and finer finish, in addition to longer repeatable finishing and increased rigidity.

“The Hybrid Shearing Cylinder has all the advantages of the ‘strap-on’ spiral blade to provide a sharper and cleaner cut, along with enhanced rigidity which significantly lengthens the intervals between the necessary regrinding of the blade,” explains Sellers Director Neil Miller. “We currently have six Hybrid Shearing Cylinders operating in the field and the earliest, which has been installed in both No1 Head position, where the majority of the shearing operation and heaviest cut is performed, and also in No3 Head, where the sharper cutting angle has resulted in a much improved surface quality.”

Sellers shearing machines have led the field in carpet finishing for many decades, enabling the leading manufacturers to stay competitive by enabling the highest quality of finish to be achieved economically and efficiently.

The latest advanced features of these machines include a load cell tension control drive system, an automated touchscreen for easy operator control and fault diagnosis, an enhanced cleaning system including cylinder and blade separation and fully controllable pivoting beds. Further options include thickness monitoring, seam detection and metal detection systems.

“The Hybrid Shearing Cylinder will become standard on our latest machines and also be made available for retrofitting, to provide significant benefits to our existing users,” says Miller. “All of our equipment is designed, manufactured, assembled and tested at our plant in the UK, and as one of the few remaining European engineering companies to make all of our components in-house – with now over a century of accumulated know-how – flexibility in design allows our finishing solutions to be targeted to specific customers and their product requirements. Aligned to this is a lead in process control systems which ensure the accurate control, reliability and repeatability of the processing parameters on all of our machines.”

Sellers remains committed to providing complete finishing solutions for all carpet, tile and artificial grass products. Its range includes machines for tufted secondary backing, both conventional, powder and extrusion lamination, Wilton and Axminster products, artificial grass and foam lines, coating lines for bitumen, PVC, PU and other polymers, as well as shearing for all carpet products.

Ongoing developments on the company’s coating and drying lines have resulted in improved guiding and product tension control as well as dryer efficiency, reducing heat loss and optimising energy use. These include a re-design of the fan pressure boxes and impingement nozzles to increase airflow efficiency, modulating gas burners and introducing easy clean, accessible filters.

In addition, the proven dual zone system has been enhanced, giving a temperature differential of up to 80°C between top and bottom zones. Dryers can be heated by either gas or steam and operation and access have been simplified with controls via touchscreen and PLC.

An extensive range of ancillary equipment is available to provide maximum flexibility to cover product requirements, for both new processing lines and as upgrades to existing equipment.

“Carpet manufacturing is now based on well-established, tried and trusted processes and it’s rare for new innovations to be introduced into this sector,” says Jason Kent, CEO of the British Textile Machinery Association. “The new Sellers Hybrid Shearing Cylinder can provide a competitive edge for manufacturers which is currently being proven in the field. It’s one of a number of new innovations the company is planning to showcase at next year’s ITMA exhibition in Milan.”

As a sub-exhibitor of Oerlikon, BB Engineering will present its product range in the fields of extrusion, mixing and filtration as well as PET recycling with the VacuFil and VarioFil R+ systems at the K show 2022.

BB Engineering has been focusing its development work increasingly on recycling technologies for several years. In addition to extruders, filters and mixers that are suitable for both recycling processes and the processing of recyclate, BB Engineering offers a complete PET recycling plant called VacuFil.

With VacuFil, BB Engineering has developed an innovative PET LSP recycling process. The process combines gentle large-scale filtration and targeted IV regulation for consistently outstanding rPET melt quality. Thus, much more than simple "downcycling" is possible with VacuFil. VacuFil processes a wide range of input materials - post-production and post-consumer. The patented key component Visco+ vacuum filter removes volatile impurities quickly and reliably. VacuFil is a modular system that can be designed for different recycling applications. Simple granulation is possible, but also direct feeding into further processing, e.g. in the synthetic fiber spinning mill. BBE offers VacuFil in combination with its own VarioFil compact spinning plant to produce polyester yarn.

At the K show 2022, visitors can experience the VacuFil Visco+ recycling technology in operation with a connected VarioFil spinning plant and see live how recycling yarn is produced from PET waste.

POWERFIL, a business unit of recycling machine manufacturer EREMA GmbH, presents its 2/406 laserfilter.

"For applications with a focus on melt quality and filtration fineness, this increase in screen area ensures lower pressure and temperature at the same throughput rate, allowing even finer screens to be used for even better results in quality-intensive plastics applications," explains Robert Obermayr, Head of Business Unit POWERFIL, EREMA GmbH. If the throughput capacity of the recycling plant needs to be increased, a significantly higher rate of plastic melt can be filtered while maintaining the other parameters thanks to the larger surface area of the screen. Up to 9,000 kilogrammes of melt can be filtered per hour with the Quattro version of the new LF 406 laserfilter.

"Plastic recycling has become a must-have, even for input streams with higher levels of contamination. Efficient filtration systems are therefore indispensable for achieving the specified melt quality using existing extrusion systems," says Obermayr. That is why POWERFIL also offers the proven EREMA melt filters as individual components for existing EREMA machines and third-party extrusion systems. The product range includes the SW RTF partial area backflush system and the laserfilter. The range is aimed at manufacturers as well as recyclers, because the high-performance filters can be used to process post consumer plastics as well as post industrial films with paper labels and clean PET material. Both types of filter are particularly easy to integrate into an existing recycling plant and both are available in numerous sizes and variations. Whether the customer uses the robust backflush filter or the continuous high-performance laserfilter depends on the throughput and level of contamination of the material. The Laserfilter is ideal for heavy contamination. It handles impurity levels up to 5 percent and filtration as fine as 70 μm while continuously cleaning the screen with a scraper.

POWERFIL will also present the new 2/406 laserfilter and the full range of filters at the K 2022 trade fair stand for the EREMA Group.

International technology group ANDRITZ has received an order from Yanpai Filtration Technology Co., Ltd. (YANPAI®), China, to supply four needlepunch lines to its site in Tiantai. Start-up of the lines is planned from the third quarter of 2022 to the third quarter of 2023.

ANDRITZ will deliver customized needlepunch lines for production of high-quality needlepunch filter felts. The drylaid web-forming equipment (cards and crosslappers) will be manufactured at the ANDRITZ Wuxi premises, including 8 PRO 25-80 aXcess profile crosslappers for controlled web weight evenness. The 16 eXcelle needlelooms will be supplied by ANDRITZ Asselin-Thibeau in France. The needlepunch lines shall ensure high output and also minimize the downtime required.

YANPAI is one of the leading Chinese producers of nonwoven filters for dust and air treatment and for woven filter fabrics used in solid/liquid separation. Established in 1990, YANPAI was at the forefront in the development of new industrial filtration fabrics. Today, YANPAI is a company with facilities in China and the USA.

Brodelec chose to broaden its scope of activity by investing in the Kornit Presto S.

Dominique Willems, CEO at Brodelec, comments: "We had already seen a strong trend for personalized items, whether in the furniture or fashion sector, but since the beginning of the pandemic we have seen a strong growth in requests for small-scale personalization. And that's exactly where Kornit offers us a solution with incredible durability and quality, perfectly suited to our needs."

He continues: "The Kornit Presto S has allowed us to bring our latest project to life: the creation of a website entirely dedicated to ordering custom masks. Thanks to an online editor and our 200 models, our customers can order their masks in quantities ranging from 1 to several thousand pieces if necessary. As the Kornit Presto is free of certain technical and chemical constraints and has adapted perfectly to Brodelec's workflow system; we are currently printing more than 10,000 masks per week and can respond to requests within extremely short deadlines while guaranteeing quality and sharpness of detail. The masks meet the recommendations of the AFNOR and are designed with a fabric that filters out particles in the air by over 90%! Therefore, the designed and printed fabric masks are designated as category 1 and meet the UNS1 standards. They are distributed after testing for 60 washes."

Cooperation and business development with AMAC
As of November 1st, 2020, AMAC is pleased to announce its cooperation with company FibreCoat for the market introduction of their products and global business development. FibreCoat is a young, award-winning start-up and spin-off of the RWTH Aachen University in Germany and develops multi-filament coated yarns, fabrics and composites based on glass or basalt fibres.

Dr. Michael Effing, CEO AMAC GmbH: „FibreCoat is a very promising newcomer in the electro-magnetic shielding and composites industry and their innovations are very cost-efficient for new technologies such as e-mobility or telecommunications. I am very pleased to introduce them to relevant key players in the industry and accompany them in their growth strategy.“

Product Launch
FibreCoat develops metal-coated fibres like bi-component multi-filament yarns with basalt core and aluminum coating which can be used for EMI-shielding and heat sinks in battery casings, electric diverters in filters, reinforcement of cast aluminum parts o ras conductive yarns in smart textiles.

FibreCoat launches ALUCOAT™, an aluminum-coated glass or basalt fibre which is suitable as electro-magnetic shielding material in automotive applications such as radar, antennas or for autonomous driving as well as for mobile phones and applications in buildings. Due to its extraordinary thermal conductivity and better heat transfer compared to traditional composite material, it can be used for the manufacturing of automotive battery trays or industrial applications such as fine particulate air filters.

ALUCOAT™ is available as of January 1st 2021 as a yarn, fabric or non-woven with a wide range of possible titers and areal weight. The material will offer an electrical conductivity of 100 Ωm and a working temperature of at least 400 °C. Furthermore, it can be used for the shielding of low to high frequencies with an effectiveness of 80 to 120 dB.

Production units with latest joining technologies for the filtration industry

The core competence of PFAFF Industriesysteme und Maschinen GmbH is the joining of flexible materials. The company not only masters industrial sewing applications, but has also been an innovation leader in textile welding applications for decades. Depending on the material and customer requirements, customer solutions are implemented using the ULTRASONIC, HOT-AIR or HOT WEDGE welding methods. In addition to the classical industries such as 'clothing, shoes, home and car upholstery', the company has made a name for itself as a specialist supplier of production solutions for the filter industry. Whether it be filters for dry filtration (dust removal, air conditioning and ventilation technology) or for liquid filtration, such as pleating filters, tube filters, stocking filters, pocket filters, bag filters, etc., the articles must first be assembled. In close dialogue with the customer, PFAFF defines the right joining technology and implements this in the machine or production line.

With the brands PFAFF INDUSTRIAL and KSL, the company has the necessary experience in process engineering, electrical engineering, automation technology and robotics to meet customer requirements for reliable, partly fully automatic solutions. A fully automatic production line for the manufacture of filter bags (with longitudinal seams) for an Asian customer is currently being manufactured in Kaiserslautern/Germany. At the heart of the system are the exchangeable hot-wedge welding and 3-thread chainstitch sewing units. Depending on the application, these can be implemented in the manufacturing process in just a few minutes. The raw material is unrolled, precisely formed and quickly and reliably fed to the sewing or welding unit. After joining, the 'tubes' are cut (filter length selectable via display) and automatically ejected. Optionally, the parts can be labelled using a printer. Depending on the material, the plant reaches a production speed of 10m/min.