Liquid Absorbers for Lithium-ion Battery Packs from Freudenberg


The experts from Freudenberg Performance Materials (Freudenberg) will be presenting battery pack liquid absorbers, an innovative solution that makes battery systems safer, at this year’s Battery Show in Stuttgart.


The absorbent pads capture and store unwanted liquids inside the packs quickly and reliably. With adjustable absorption capacity and geometries, battery pack liquid absorbers ensure long-lasting battery packs. Visitors will find Freudenberg at Stand C 36 in Hall 10 from June 28 to 30.

Battery packs are the core elements of mobile and stationary lithium-ion energy storage systems. They are used in automotive and industrial applications. The performance and lifespan of these components are largely responsible for the efficiency of the energy storage system. Moisture inside the packs, such as condensation water or leaking coolant, can considerably diminish both function and lifespan. Battery pack liquid absorbers act as a safety system: the special fleece quickly takes up condensate or coolant and stores it effectively.

Freudenberg liquid absorbers for li-ion battery packs

Technical Textile Solutions from Freudenberg

Freudenberg Performance Materials, Low & Bonar and Filc shared details of their latest technical textile solutions together for the first time since their merger in 2020 at the recent IDEA nonwovens show in Miami.

With Evolon RE, Freudenberg presented an even more sustainable version of its high-performance microfilament textiles. Evolon RE is manufactured from an average of 70% recycled polyester, which the company makes by recycling post-consumer PET bottles in-house. It is available for various applications, including high-tech wiping and technical packaging, in weights currently ranging from 80-300gsm.

Colback Plus is a pleatable medium with a built-in filtration capacity layer for use as a carrier in the manufacturing of cabin air, room air and HVAC filters. The well-known performance characteristics of Colback support media – ensuring low pressure drop and high pleat stiffness – is combined with a unique fine fibre technology, creating new capabilities for manufacturing and added value for customers.

A new panel with Dripstop, an anti-condensation membrane, provides a simpler and more economical way of controlling condensation in metal roofs.

When the temperature and humidity conditions reach the dew point, moisture condenses on the underside of an uninsulated metal roof. If there is a lot of condensation, drops of water form. The traditional method for dealing with condensation is to try and insulate the roof so that the temperature on the panel never reaches the dew point. The roof panel provides a medium for trapping this moisture in the membrane’s specially designed pockets. Dripstop holds that moisture until conditions go back below the dew point and it is released back into the air in the form of normal humidity.

A Wide Range of Products for the Nonwovens Industry from Brückner

On the IDEA 2022 trade fair in Miami, USA, Brückner will present together with its American representation FI-TECH new machine concepts and solutions for different applications in the mentioned fields.

For more than 70 years Brückner has been the world leader in the construction of drying and finishing lines for the textile and nonwovens industry. In the nonwovens sector, the German family-owned company supplies worldwide thermofusion ovens, dryers, coating and heat-setting lines.

The production of nonwovens always requires a bonding process after the nonwovens formation, where the loosely laid fibers are bonded to a resilient fiber composite. For this purpose, depending on the process, different ovens and dryers are used. Brückner offers the specific know-how and supplies the necessary lines for all applications. The production program is completed by different impregnation and coating units as well as slitting and winding equipment. Brückner’s customers produce geo nonwovens, filter media, hygiene and medical textiles or different fabrics for the automotive and transport industry. For each customer an individual solution and a corresponding line layout is designed.

Recently Brückner realized several extraordinary installations in the field of highloft nonwovens and geotextiles. For the production of highloft nonwovens the double-belt thermofusion oven SUPRA-FLOW BX is used. This oven system operates according to the air-through principle and can be perfectly adapted to the product requirements in terms of flow speed, flow direction and temperature on a field-by-field basis. Typical end products include mattresses, bedspreads, upholstery, wiping cloths, automotive components or insulating materials. The SUPRA-FLOW BX can produce nonwovens up to a thickness of 280 mm and a basis weight of max. 8 kg/m². The available working widths vary between 2400 and 5200 mm at production speeds of up to 100 m/min.

For geotextile projects, the proven Power-Frame stenter is usually used, which impresses with its high uniformity in terms of temperature distribution as well as maximum productivity. In addition, the fabric can be stretched in a targeted manner by transporting it in the stenter chain. This has a controlled influence on fabric width, fiber orientation and fabric shrinkage. Working widths of up to over 7 meters are not uncommon with geotextile finishing systems. Depending on the required width, maximum temperature, stretching forces and other process requirements, the optimum solution is found for each customer. Fabric trials are also possible at any time in Brückner’s Technology Center in Leonberg, Germany.


Speed PLUS Variety in Elastane Processing

Karl Mayer’s new HKS 2-SE Plus opens up new application possibilities with its additional range of lapping options.

Simple, lightweight, plain fabrics with elasticity have become indispensable in the underwear and sportswear sector. Karl Mayer’s two-bar, high-performance tricot machines have long set the standard in terms of quality and productivity. The portfolio of the established machines has so far included the HKS 2-SE – a high-speed model designed exclusively for the production of elastic articles using locknit and double tricot lapping – and the HKS 2-S, which offers greater flexibility in terms of yarns and lapping options, with lower production speeds. The manufacturing repertoire also includes qualities with two-needle-overlap, and non-elastic fabrics such as embroidery grounds and tulle are also possible.

In order to combine both product variety and speed, Karl Mayer has now added another machine to its range of elastane-processing machines – the HKS 2-SE Plus. This builds on the proven basic concept of the HKS 2-SE and, thanks to a modified knitting motion, can be used for both elastic locknit and double tricot, as well as two-needle overlap. The two needles overlap is carried out by the GB 2 ground guide bar, which processes elastane. This results in fabrics with a higher modulus, making swimwear, sportswear and shaping corsets just as much a part of the HKS 2-SE Plus range as fine lingerie qualities.

In terms of speed, the new machine is almost in the same performance range as the HKS 2-SE, and it achieves higher production speeds than the HKS 2-S.

Just like the HKS 2-SE, the Plus variant is offered in gauges E 32, E 36 and E 40. The available stitch density is also the same. The working width is 130″, and can be extended by 4″. With its special focus, the new HKS 2-SE Plus is a high-performance all-rounder that puts Karl Mayer’s elastic customers one step ahead in their respective markets.


Online Measurement Solutions For Nonwovens Industry From Mahlo

For more than 75 years, Mahlo has been one of the world’s leading manufacturers of automatic straightening systems and measuring and control systems. At IDEA, which will take place in Miami from 29 to 31 March 2022, Mahlo will present solutions for the nonwovens industry for online measurement of basis weight, thickness, moisture, density and width.

Alan Lavore, Managing Director of Mahlo America Inc., and Area Sales Manager David Jillson are ready to answer all questions on the subject of quality control for nonwoven products. The centrepiece around which almost everything revolves at the Mahlo stand is the quality measuring system Qualiscan QMS-12. “The tool measures parameters such as basis weight, thickness and moisture across the entire width of the fabric,” explains Lavore. For this, up to five sensors traverse on robustly constructed measuring frames, continuously collect data and pass it on to the interfaces. Radioactive sources are used as well as infrared, laser, microwave and air permeability sensors. For thermo-bonded nonwovens, the high temperature sensor Thermosense HP270 is a decisive factor for optimal process control. Thanks to the wide portfolio of sensors and measuring frames, Mahlo offers tailor-made solutions for almost all requirements.

Mahlo systems also meet customers’ demands for increased connectivity of their machines. “Our systems generate data that the customer can use immediately to control goods on-line. In addition, these values are kept in our new data management system and can be retrieved at any time to optimise processes and minimise weak points in the sequence,” says Lavore.

The experienced experts explain on site which solution ultimately fits the customer’s application exactly. This is how production processes can be effectively improved.



Sandler Presents Sustainable Nonwoven Solutions from Automotive to Wipes

At this year’s IDEA show in Miami Beach, the nonwovens manufacturer will present the international audience with innovative sustainable products featuring optimised functionality.

In hygiene applications, new nonwovens for acquisition and distribution layers (ADL) put sustainability concepts into practice: Currently used diaper structures provide for high comfort in use as well as an optimized fit. Nonetheless, ADL and core wrapping still are independent layers not thoroughly connected to the core material. Despite the achievements in diaper design thus far, this may result in reduced fluid handling and even higher potential for leakage. Sandler’s next generation ADL brings together the functionalities of the ADL and the core cover in a single-layer material. The new fluid handling concept gets rid of any gaps between functional layers and the absorbent core. Optimum fluid management is ensured no matter the size, shape or form of the absorbent core. The innovative Sandler materials providing an outstanding interim storage capability improved capillarity. Owing to an exclusively mechanical production process these nonwovens can do entirely without thermoplastic polymers in raw material selection, ideally supporting customers’ sustainable product concepts. Material composition and properties can be adapted to the respective features of the end product.

Offers Sustainable Materials for Wipes

Wipes for diverse areas of use have become part of our everyday lives, but their production is generally both energy and resource intensive. For these products, Sandler presents new materials, which take account of sustainability by significantly reducing their carbon footprint. An innovative manufacturing process lowers energy consumption and use of resources by up to 50% compared with common production methods. The nonwovens feature similar or even improved softness as well as higher thickness at similar basis weights and bonding levels. For this new development, a wide variety of natural fibres or fibres based on renewable sources can be used—optimally adapted to customer wishes and requirements of the end application.

Sound Absorbing Nonwovens Increase the Driving Comfort of the Vehicle

In the field of nonwovens in technical applications Sandler puts forward a sustainable new development for the automotive industry. In this sector, single-material solutions have been a centre of interest for a long time and are currently also expanded to so-called moulded exterior parts, such as underside panels, engine compartment shieldings, and damping trays. An innovative Sandler nonwoven made from 100% PET offers a sustainable alternative for these applications. No binders are being used, nor additional fibres often used to reinforce this type of components, thereby significantly reducing the weight of this innovative material. Their porous structure makes these nonwovens excellent sound absorbers, increasing the driving comfort of the vehicle.

By customizing the fibre structure and the 3-dimensional shape of the component, performance can be further optimised to specific applications. The textile materials are also not susceptible to mould and fungi and extremely resistant to all common engine compartment fluids. They offer a high performance with structural rigidity and temperature stability. The Sandler nonwovens are made from up to 80% post-consumer recycling fibres – at the end of their life cycle, they can be reprocessed and turned into new polyester materials after mechanical recycling. In this way, this innovation also contributes to keeping resources in a closed material cycle longer and implementing the concept of the circular economy.


Trützschler at IDEA with Its Nonwoven Solutions

IDEA, the North American nonwovens show, will take place in Miami from March 28th to 31st. Trützschler’s booth 2017 focuses on the needs of the American market. It’s about local service, the efficient production of sustainable nonwovens and the digital support of production processes.

 In addition to the in-depth know-how, Trützschler Nonwovens has a broad portfolio of line concepts for the production of sustainable, biodegradable nonwovens. Cotton is an important raw material for American producers, which is why the company is showing efficient solutions for processing raw cotton, comber noils and blends of viscose and cotton. Another focus is on the leading Voith/Trützschler concepts for wet-laid, hydroentangled WLS and CP nonwovens. High-quality nonwovens made from viscose fibers and NBSK pulp, the raw material for the paper industry, not only offer an excellent cost/performance ratio, but also a small CO2 footprint.

Trützschler Card Clothing provides information on the Z-wire. Its innovative contour keeps fibers on the roll even at the highest speeds, thus minimizing fiber flight inside the card.

Digital solutions optimize the production floor

Nonwovens producers have two primary goals: guaranteeing the quality of the products and always having costs under control. In times of COVID, however, it is becoming increasingly rare that the production floor is manned by a fully trained team. In order to ensure lasting quality, Trützschler Nonwovens presents a modular, digital work environment that systematizes, digitizes and simplifies typical work processes. With the help of Industry 4.0 technologies, line, process and quality data relevant to a production lot can be stored, aggregated, visualized and analyzed with regard to process improvements.

Trützschler USA: A reliable local partner

With its headquarters in Charlotte, North Carolina, and more than 100 employees, Trützschler USA is the first point of contact for all matters relating to American nonwovens producers. The company is able to equip and convert machines according to customer specifications (certified UL508A panel shop), carry out factory acceptance tests and a wide range of repairs in Charlotte.


Andritz to Exhibit Its Innovative Nonwoven Production at IDEA

International technology group Andritz will be presenting its innovative nonwovens production and textile solutions at IDEA 2022 in Miami, USA, from March 28 to 31 (booth 4104).

The broad Andritz product portfolio covers state-of-the-art nonwovens and textile production technologies such as air-through bonding, airlay, needlepunch, spunlace, spunbond, wetlaid/WetlaceTM, converting, textile finishing, recycling, and natural fiber processing.

News in Wipes Technology Developments

Andritz offers various nonwoven processes to produce best and cost-effective wipes, like spunlace, Wetlace and Wetlace CP. Andritz also accompanies nonwoven producers in the move to sustainability with the aim of reducing or eliminating plastic components while maintaining the high quality of the desired product properties. This applies to all types of sustainable wipes, such as flushable, biodegradable, bio-sourced, carded-pulp or standard carded wipes. Indeed, hydroentanglement has the advantage of being able to bond any kind of fibers without the use of chemical binders or thermal fusion. It is, therefore, the most suitable bonding process for natural fibers, such as pulp, cotton, hemp, linen, flax, bamboo, and more. The latest development in this field is the Andritz neXline wetlace CP line, which integrates the card-pulp (CP) process. This is a fully engineered production line combining the benefits of drylaid and wetlaid technologies to produce a new generation of biodegradable wipes.

In order to make a meaningful contribution, Andritz has become a member of the Board of the Responsible Flushing Alliance (RFA) in the USA. The RFA is an independent, non-profit trade association committed to educating consumers in responsible and smart flushing habits to help reduce damage to the nation’s sewage systems. Andritz is deeply involved in this topic with its technologies for 100% dispersible and biodegradable wet wipes and is highly committed to being part of the RFA.

Latest Technologies for Hygiene Applications

Andritz will highlight the technology development in the spunlaid sector with the patented nonwovens process called Spunjet Soft. This is the in-line hydroentanglement of continuous filaments, creating a new generation of premium spunlaid nonwovens with unrivalled bulkiness and softness compared to standard spunbond fabrics. Samples of absorbent hygiene products integrating spunjet soft materials will be available at the Andritz booth.

Moreover, Andritz will introduce its adult pants converting line, which offers top-class components and an innovative technology process. The growing market for adult incontinence products has resulted in a state-of-the-art process with highest quality standards, such as the development of ultrasonic side seam solutions with excellent results in terms of bond strength and system reliability. As a result, operations and size changes are faster and easier. The modern forming system for higher SAP (superabsorbent polymers) concentration and the turning and placing system guarantee maximum process stability and put the adult pants produced by Andritz customers at the top of the adult hygiene market.

Innovations in Solutions for Durable Applications

 Another strong focus lies on technologies for durable nonwovens, especially for the automotive industry. The use of nonwovens in the automotive area has increased substantially in recent years. Indeed, a very large number of automotive parts are made with nonwovens fabrics, from trunk liners, carpets and insulation to air and fuel filters. In addition, the automotive industry is moving its focus to green technologies, which has a direct impact on the characteristics of nonwoven parts in vehicles. Thanks to the Andritz airlay and needlepunch processes, producers are able to provide the most suitable fabrics for this industry’s requirements.

The Andritz airlay technology can process all types of fibers and solid particles. It is offered as a complete line with needlelooms, thermobonding or other bonding methods for numerous applications in the automotive and also the furniture, bedding, insulation, and filtration industries.

In addition, Andritz is presenting the brand new ProWinTM technology for profile weight correction in the needlepunch segment, which is used to optimize processes, provide a faster return on investment, and save raw materials. This unit combines the well-known systems ProWid and ProDyn, enabling even better performance, and the same machine can run faster with less mechanical stress.

Customers are welcome to conduct trials and compare the different options available in the technical center for needlepunch processes at Andritz Asselin-Thibeau, Elbeuf, France, and/or in the airlay pilot line at Andritz Laroche, Cours, France.

Another very relevant topic these days is textile recycling, which has become a key focus of worldwide sustainability efforts. Customer and consumer awareness as well as new regulations are pushing clothing brands to recycle their pre-consumer and post-consumer waste in their own products. Andritz is very much involved here with its technologies for textile recycling and processing of recycled fibers.

Spot-On and Digital Service to Keep Machines Running

Andritz offers a full-service portfolio and thus can ensure improved uptime, productivity, and product quality – for years to come. This includes on-site support, specific training, line audits and troubleshooting, upgrades and modernizations, spare parts, and roll repair centers. In the USA, Andritz is well supported in sales and service by its local branches – Andritz Küsters in Spartanburg, SC, and Andritz SHW in Torrington, CT.


Dilo Group at IDEA 2022 with the Latest Machine Concepts

DiloGroup will attend IDEA 2022. The most recent machine concepts from DiloGroup companies DiloTemafa, DiloSpinnbau and DiloMachines will be promoted with the emphasis on new equipment components which improve product quality, increase line capacity and also enable new opportunities in nonwoven production.

Dilo is the leading equipment supplier of complete lines for staple fibre nonwoven fabric

production. DiloTemafa will promote the improved bale opener series “Baltromix Pro” with design features for the operating assistance with the I4.0 components “Bale Timer”, cleaning control, better accessibility for maintenance and the “DI-LOWATT” system for energy savings in fibre transport. The proven carding willow with modified workers and separate drives to create the prerequisites for a good fine opening will also be part of the presentation as well as the fine opening stage which may be installed over the material box of the new card feeder FRS-P to achieve a high dosing accuracy in cross and longitudinal direction.

DiloSpinnbau has a new “Unifeed” card feeder (VRS-P) which combines the principle of volumetric charged feeding with the characteristics of a chute feeder but without the conventional overhead trunk which allows for lower ceiling height requirement. The fibre flock matt is condensed by a vacuum delivery apron to give better uniformity of mass distribution. The distribution over the working width is controlled by additional flaps. This feeder can be adapted for medium/fine, coarse/medium or long staple fibres.

The “VectorQuadroCard” by DiloSpinnbau incorporates a modular transfer group between breast and main section. The quick change facility of this roller group provides different carding options. The delivery system is also flexible to provide parallel laid, random or condensed web. The preopener section on this card has 4 worker/stripper pairs with five pairs on the main cylinder. Emphasis is on high throughput with good web quality.

The revised HyperLayer NT offered by DiloMachines presents the latest state-of-the-art highspeed precision layering technique setting new standards which play an important role especially in hydroentanglement lines. In this application, it is important to achieve layering speeds up to 190 m/minute using sophisticated viscose fibres and a layering width of about 4 m while at the same time having a high layering precision in cross and longitudinal direction.

DiloMachines will also present its portfolio to improve quality and reduce costs. The FutureLine study “3D-Lofter” – first presented at ITMA 2019 in Barcelona – is part of this programme. In this study individual web forming units can deposit fibre masses on freely programmable spots in longitudinal and cross direction thus saving overall fibre mass in applications such as deep moulded parts for the automotive interior. This ability reduces costs in production and operation. The “IsoFeed” concept for a more even flock mat for direct cards and aerodynamic web forming is another interesting field of web mat quality improvement.

The high stitch distribution uniformity achieved by the new needle patterns “8000X” and “6000X” is able to further improve surface quality. “Smart industry” which offers more transparency and control of the production process and the operating conditions realized with the aid of software, internet and cloud is another tool to make production more efficient.

Developments underway relating to the needling process include “Needle Module Technology” whereby needles are pre-mounted in multiple units of 22 for insertion into very high-density boards. It is reducing visible marking patterns on the product surface significantly.

Customer and Market Oriented System Solutions from Oerlikon Nonwoven

Oerlikon Nonwoven will be traveling with its entire product portfolio to IDEA, being held in Miami between March 28 and 31, Hall B, Stand 4111. The company will be presenting customer- and market-oriented systems solutions with a special focus on sustainability, quality and efficiency.

Very much in line with Dr. Ingo Mählmann’s, Head of Sales at Oerlikon Nonwoven, pledge: “We love building systems, machines and components that sustainably manufacture materials from which our customers’ successful products are made.”

The Phantom technology is revolutionizing the nonwovens process

With its Phantom platform, Oerlikon Nonwoven offers an innovative co-form technology for manufacturing various wet wipes from pulp and polymer fibers. Here, the spunmelt and airlaid processes are combined in a manner that perfectly unites the properties of the starting materials. The material mix can comprise up to 90% cellulose fibers. Alternatively, cotton or synthetic fibers can also be added.

Compared to processes such as classical spunlace (hydroentangled carded nonwovens) produced to date, the patented Phantom technology offers ecological, performance and cost advantages. The sus-tainable process stands out above all with regards to energy efficiency and water consumption as well as user-friendliness. Dispensing with hydroentanglement renders subsequent drying of the material redundant. Product parameters, such as softness, tenacity, dirt absorption and liquid absorption, can be optimally set. The Phantom technology enables the manufacture of both flexible and absorbent struc-tures and highly-textured materials.

Airlaid technology for sustainable nonwovens

Pulp or cellulose fibers as raw material for manufacturing nonwovens are currently virtually unrivaled with regards to sustainability and environmental compatibility. The Oerlikon Nonwoven airlaid process is the ideal solution for processing this raw material into high-end products for a wide range of applications. Today, there is huge demand for manufacturing solutions for high-quality, lightweight airlaid nonwovens with economically-attractive production speeds and system throughputs. Here, the patented Oerlikon Nonwoven formation process is setting standards – for homogeneous fiber laying and superb evenness even for nonwovens with low running meter weights. Furthermore, it permits the homogene-ous mixing of the most diverse raw materials, including pulp, short- and long-staple natural and manmade fibers (up to 20 mm) and powders, as well as the utilization and combination of the most diverse mechanical, thermal and chemical tangling methods for creating the requisite product properties.

Oerlikon Nonwoven’s airlaid technology is also perfectly suited to expanding typical spunlace systems in order to add a cellulose layer to the product that, for example, improves the water absorbency of wipes using a low-cost and biodegradable raw material.

QSR: attractive spunmelt systems for the hygiene and medical market

For manufacturing hygiene and medical nonwovens, the QSR (Quality Sized Right) technology offers a financially-attractive solution for producing these highly-diverse spunbond and meltblown composites (SSMMS, SMMS, SSS, etc.) in accordance with globally-accepted standards. As a result of intensive collaborations and partnerships, close-knit quality assurance measures and extensive interaction with its technology partners, Oerlikon Nonwoven is able to equip this type of system with unique features that enable producers to distinguish themselves within their respective markets with special nonwoven properties such as higher volumes, softness and customer-specific embossed patterns, for example.

Filtration: leading meltblown competences from Neumünster

Unique and highly-sophisticated nonwovens for filtration, insulation and sorption applications can be simply and efficiently manufactured thanks to Oerlikon Nonwoven’s meltblown technology. The poly-mers used to produce the filter media and membranes are as diverse as their field of applications. The spectrum ranges from classical polyolefins (PP, PE), PET, PLA, PBT and PA all the way through to special plastics such as PPS and TPU. All these, and other raw materials, can be reliably processed using the Oerlikon Nonwoven meltblown technology.

Filter media can be efficiently electrostatically charged with the ecuTEC+ electro-charging unit devel-oped by Oerlikon Nonwoven for increasing the filtration performance of meltblown media without reduc-ing air permeability. It distinguishes itself from other concepts currently available on the market as a result of its extreme flexibility. Users can choose from numerous possible variations and hence set the optimum charge intensity for their respective filter applications. However, ecuTEC only represents the beginning of an era of new charging and treatment systems available from Oerlikon Nonwoven for fur-ther increasing media filtration performance and product diversity.

Comprehensive spunbond portfolio

For industrial nonwovens, Oerlikon Nonwoven systems are capable of high production capacities and yields with simultaneously low energy consumption. To this end, geotextiles made from polypropylene or polyester can be efficiently manufactured with running meter weights of up to 400 g/m2 and filament titers of up to 9 dtex, for example. And Oerlikon Nonwoven also offers specialized spunbond processes for producing nonwoven substrates for roofing underlays (PP or PET spunbonds) and so-called bitumen roofing substrates (needled PET spunbonds) for bitumen roofing membranes.

Furthermore, spunbond products are also becoming increasingly important in filtration applications – both as backing materials for filter media and as the filter media themselves. A flexible nonwoven structure permits the inclusion of customer-specific requirements for various functions. It is Oerlikon Nonwoven’s many years of core-sheath bi-component experience in particular that enable the creation of completely new nonwoven structures and hence the incorporation of various functions in a single material. The core-sheath bi-component spinning process permits various combined fiber cross-sections and also simultaneously different fibers to be produced from a single or different polymers. The spectrum ranges from core-sheath and side-by-side bi-component filaments, splitable fibers all the way through to so-called mixed fibers.

Wolf PVG Trusts in Meltblown Technology from Oerlikon Nonwoven

In addition to this filter material, which is in great demand today, high-quality meltblown nonwovens can also be produced for medical and industrial filter applications. The plant has now been running for several weeks under stable production conditions with op-timal nonwoven fabric quality of the highest standards.

With the beginning of the corona pandemic and the shortage of protective masks that ensued, Wolf PVG GmbH & Co. KG, a wholly-owned subsidiary of the Melitta Group, switched part of its production capac-ities to nonwoven mask fabric production. As a highly specialised system supplier for everything to do with vacuum cleaners and industrial filter technology, the company from East Westphalia can fall back on its extensive know-how and many years of experience.

With the meltblown plant from Oerlikon Nonwoven, Wolf PVG is further expanding its production capac-ities. The plant, with its two beams and the ecuTEC+ electro charging unit, is optimally designed for the production of face mask material. The plant is also ideal for the production of other filtration nonwovens. “A decisive point for investing in a plant from Oerlikon Nonwoven was the flexibility of the plant in relation to the possible product portfolio and the competence of the manufacturer,” explains Markus Seele, COO of Wolf PVG. And Dr. Ingo Mählmann, Senior Vice President Sales & Marketing Oerlikon Nonwoven, adds: “Thanks to the numerous setting options for the electrostatic charge provided by the ecuTEC+, the optimum loading status can be set depending on the filter application.”

ecuTEC+ electro charging unit Nonwoven complements filter nonwoven plants

The meltblown technology from Oerlikon Nonwoven is considered the most technically efficient process for the production of highly effective filter media from plastic fibres. The ecuTEC+ electro charging unit also makes a significant contribution to this. With the patented process, spunbond and meltblown ma-terials can be charged electrostatically and thus the filter performance can be significantly increased. In this way even the smallest particles are safely filtered. Nonwoven manufacturers are thereby largely free to choose and can set the optimal charging method and intensity for their filter application.