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21.09.2021

Virtual Quality Inspection Optimizes Production of Filter Nonwovens

Nonwoven production received more attention than ever before from the general public in Corona times, because the technical textile is crucial for infection protection. The ultra-fine nonwoven products are manufactured in so-called meltblown processes. A cross-departmental team at the Fraunhofer Institute for Industrial Mathematics ITWM in Kaiserslautern is optimizing the entire production chain in the »ProQuIV« project. Simulations help to guarantee the product quality of the filter material despite fluctuations in production.

Nonwoven production received more attention than ever before from the general public in Corona times, because the technical textile is crucial for infection protection. The ultra-fine nonwoven products are manufactured in so-called meltblown processes. A cross-departmental team at the Fraunhofer Institute for Industrial Mathematics ITWM in Kaiserslautern is optimizing the entire production chain in the »ProQuIV« project. Simulations help to guarantee the product quality of the filter material despite fluctuations in production.

The abbreviation »ProQuIV« stands for »Production and Quality Optimization of Nonwoven Infection Protection Clothing«. This is because bottlenecks in the production of these materials were particularly evident at the beginning of the Covid 19 crisis. For the meltblown nonwovens, this optimization of the product quality is also particularly difficult because the textiles react very sensitively to fluctuations in the manufacturing processes and material impurities.

Digital Twin Keeps an Eye on the Big Picture
»Meltblown« is the name of the industrial manufacturing process whose ultra-fine fiber nonwovens are responsible for providing the crucial filtering function in face masks. In this process, the molten polymer is forced through nozzles into a forward-flowing, high-speed stream. It is stretched and cooled in a highly turbulent air flow.

»The overall process of filter media production – from the polymer melt to the filter medium – presents a major challenge in simulation,« explains Dr. Konrad Steiner, head of the »Flow and Materials Simulation« department. »In the project, we kept the big picture in mind and developed a completely integrated evaluation chain as a digital twin. In doing so, we take several key components into account at once: We simulate the typical production processes of nonwovens, the formation of the fiber structures and then the material properties – here, in particular, the filter efficiency. This allows us to quantitatively evaluate the influences of the manufacturing process on the product properties.« In each of these individual areas, Fraunhofer ITWM and its experts are among the leading research groups internationally.

Homogeneity of the Material – Fewer Clouds in the Simulation Sky
In the meltblown process, a key factor is the behavior of the filaments in the turbulent, hot and fast air flow. The properties of the filaments are strongly influenced by this air flow. The quality of the filaments – and thus the quality of the nonwovens – is influenced by many factors. Dr. Dietmar Hietel, head of the »Transport Processes« department, knows what this means more precisely in practice. His team has been working at Fraunhofer ITWM for years on the simulation of various processes involving filaments, threads, and fibers. »The focus of the project is the so-called cloudiness, i.e. the non-uniformity of the fiber distributions in the nonwoven,« explains Hietel. »We are investigating the question: How homogeneous is the fabric? Because the quality of the products can be greatly improved if we increase the uniformity. Our simulations help figure out how to do that.«

Objective Evaluation of the Homogeneity of Nonwovens
The researchers also use appropriate image analysis techniques to quantify this cloudiness. The power spectrum plays a special role here. »The cloudiness index (CLI) describes homogeneity complementary to local basis weight and its variance,« describes Dr. Katja Schladitz. She brings her expertise in image processing to the project. »Our CLI ensures a robust assessment of the homogeneity and can thus be used for different material classes and imaging techniques to be used as an objective measure.« The frequencies that go into the CLI calculation can be chosen so that the CLI is meaningful for the particular application area.

Filtration: How Efficient Are the Filters?
For the upscaling to industrial processes such as mask production, the ITWM expertise in filters is also included in the project. The »Filtration and Separation« team led by Dr. Ralf Kirsch has been working for years on the mathematical modeling and simulation of various separation processes.

»What's special about this project is that we calculated the efficiency of the filters for fluctuations of varying degrees in the fiber volume fraction,« emphasizes Kirsch. »This allows us to specify up to what level of cloudiness the required filter efficiency can be achieved at all.« As a current example of this, the figure depicts in the graphic the efficiency of a filter material for N95 masks as a function of the inhomogeneity of the nonwoven.

ITMW Methods Support Across the Entire Process Chain
In »ProQuIV«, digital twins and calculations from Fraunhofer ITWM support a holistic view and better understanding of the processes. The production of technical textiles thus not only becomes more efficient, but the nonwovens can be developed virtually without having to realize this in advance in a test facility. In this way, production capacities can be increased while maintaining or even increase the quality. Together with long-term partners from industry, the research can be put into practice quickly and efficiently.

Simulations save textile companies experiments, allow new insights, enable systematic parameter variations and solve upscaling problems that can otherwise lead to bad investments during the transition from laboratory plant to industrial plant. However, virtual implementation of nonwoven production also opens up new opportunities for optimization at other levels. For example, acoustic insulating nonwovens or even hygiene nonwovens can also be optimized in terms of their product quality precisely with regard to the material properties to be achieved – while taking into account the process fluctuations that occur.

The project is part of the Fraunhofer-Gesellschaft's »Fraunhofer versus Corona« program and was completed in April 2021. The results will flow into several follow-up projects with the nonwovens industry.

(c) Fraunhofer ITWM
27.07.2021

Simulation Software TexMath - Simulating Technical Textiles realistically

From high-performance textiles to compression and sportswear: The modular software program »TexMath« of the Fraunhofer Institute for Industrial Mathematics ITWM enables both the simulation of mechanical material properties and the optimization of textile products.

Accelerated development and optimized design of technical textiles while reducing experiments? The demand for techniques that can realize this is especially high in areas such as the sports, medical, and clothing industries. The »Technical Textiles« team of the  »Flow and Material Simulation« department at Fraunhofer ITWM has taken up this challenge and is developing simulation methods that allow efficient prediction of textile behavior under stretching, shear, bending, torsion, or compression. It is also possible to simulate wrinkling under stretching as well as shrinkage of yarns or critical shear angles throughout the manufacturing process.

From high-performance textiles to compression and sportswear: The modular software program »TexMath« of the Fraunhofer Institute for Industrial Mathematics ITWM enables both the simulation of mechanical material properties and the optimization of textile products.

Accelerated development and optimized design of technical textiles while reducing experiments? The demand for techniques that can realize this is especially high in areas such as the sports, medical, and clothing industries. The »Technical Textiles« team of the  »Flow and Material Simulation« department at Fraunhofer ITWM has taken up this challenge and is developing simulation methods that allow efficient prediction of textile behavior under stretching, shear, bending, torsion, or compression. It is also possible to simulate wrinkling under stretching as well as shrinkage of yarns or critical shear angles throughout the manufacturing process.

The »TexMath« simulation software they developed ensures that process chains in production can be adapted to new materials in advance. Complicated patterns and layers can be mapped with the help of the software and a direct connection to the textile machine can be made. Desired woven, knitted and warp-knitted products are accurately simulated with the software and their material properties computed. In addition to evaluating a particular textile design using simulation, the tools also provide optimization of performance characteristics for different design variations. The goal of the software, according to team leader Dr. Julia Orlik, is to »realize the design according to product properties and target criteria.«

TexMath consists of several components: »MeshUp«, »FibreFEM« and »FIFST«. Each of the components included in TexMath has its specific field of application. In addition, the tools have interfaces to each other as well as connections to the software »GeoDict®« of the Fraunhofer spin-off Math2Market, which can be used, for example, to perform fluid mechanical simulations on the textiles.

One area of application for the TexMath software is the optimization of compression textiles for the medical sector or for sports. For optimal effectiveness, the fit of the material is particularly important. For example, the knitting process can be simulated with TexMath to create a bandage with predefined compression properties and thus design the optimal knitted fabric. This virtual bandage is then loaded in another simulation and put on a virtual arm or leg. Thanks to TexMath, the calculated pressure profile makes it possible to evaluate the compression properties of the bandage in advance and also to directly control the knitting machine according to the optimal design.

»TexMath can also be used to design spacer textiles, such as those used for the upper material of sports shoes and for the production of high-performance textiles, and to optimize them in advance in terms of structure and fluid mechanics,« say Dr. Julia Orlik and department head Dr. Konrad Steiner, naming further areas of application for the software.

The newly developed input interface is particularly user-friendly. The textile class (i.e. knitted, warp-knitted, woven and spacer fabrics) can be easily set. The new graphic interface allows simple and fast configuration.

MeshUp for Structure Generation of Woven Patterns and Stitches
Knitted and woven fabrics are produced with the aid of knitting or weaving machines. Each textile is based on a looping diagramm, which is read into the machine or is firmly pre-defined in the machine. MeshUp is the software module of TexMath, in which looping diagramm for various woven and knitted fabrics with different types of binding, the yarn path and all contact points between different yarns are created, graphically displayed and translated into the corresponding input formats for further simulations in TexMath with FISFT and FiberFEM. In addition, MeshUp also provides the geometry as volume data (voxel format) for calculation tools such as GeoDict and FeelMath.

FiberFEM to Calculate Effective Mechanical Properties of a Periodic Textile Structure
With FiberFEM, woven and braided textiles, spacer fabrics, scrims and trusses can be calculated and optimized regarding their effective mechanical material properties. A special feature of FiberFEM is that, in addition to tensile and shear properties, effective bending and torsional properties of textiles can also be determined based on their textile structure and yarn properties.

As input variables FiberFEM requires the microstructure description from MeshUp, the fiber cross-section geometry, as well as mechanical fiber properties such as tensile stiffness and friction. As output the effective mechanical textile quantities are calculated. Besides the calculation of the effective mechanical material properties for already existing woven or knitted textiles for technical and medical applications, the approach also offers the potential for the targeted design and optimization of new textiles with a given mechanical property profile.

For example, the relaxation behavior of a textile can be determined from the weave or knit pattern and the yarn relaxation times for viscoelastic yarns. Coefficients of friction between the yarns are also taken into account and are directly included in the simulation of the effective properties or identified from the experimental validation with the fabric.

FIFST to Calculate the Deformation and Load of Textiles
The tool FIFST is specialized for dynamic simulations of stretchable knitted fabrics and teir production. For example, the knitting process can be simulated, the pull-off from the knitting machine, the shrinkage to a relaxed textile and also the further deformation during tightening can be calculated. This means that the design of the knitted fabric can also be adapted to predefined tension profiles and individualized machine control is possible for the production of personalized textiles or product-specific designs.

The numerical implementation uses the finite element method with non-linear truss elements, which has been extended for contact problems by an additional internal variable - the sliding of threads at contact nodes. The friction law is implemented with the Euler-Eutelwein model, which was extended by an additional adhesion term. Adhesion thus allows different pre-strains in the respective meshes. The elastic energy is calculated directly from the yarn force-elongation curves.  

One of the most important unique selling points of FIFST is the special technology of assigning several elements to specific threads and their arrangement in the thread as well as the simultaneous contact sliding at millions of nodes. Thus FIFST enables multi-scale simulation of large knitted or woven shell components, taking into account the local textile structure.

Another functionality of the software is to virtually drag textiles over a surface triangulation given in STL format. In the video, woven mask (knitted is also possible) is extended in the plane at 6 points and pulled against the face surface. Its knots are projected onto the face and continue to slide on the surface until the mask is fully in place. If you know frictional properties of yarns on the face, you can investigate further folding formation and also influence it specifically. As a further potential for optimization, FIFST allows to minimize pore sizes of dressed textiles on particularly curved surface areas. This can be achieved by increasing the pre-tension in yarns or by modifying the lapping diagram or the binding cartridge.


For a Test demoversion, please contact

Fraunhofer Institute for Industrial Mathematics ITWM
Fraunhofer-Platz 1
67663 Kaiserslautern

Phone: +49 631 31600-4342

texmath@itwm.fraunhofer.de    

Source:

Fraunhofer Institute for Industrial Mathematics ITWM

(c) Porsche AG
04.05.2021

Fraunhofer: Lightweight and Ecology in Automotive Construction

  • The “Bioconcept-Car” moves ahead

In automobile racing, lightweight bodies made from plastic and carbon fibers have been standard for many years because they enable drivers to reach the finish line more quickly. In the future, lightweight-construction solutions could help reduce the energy consumption and emissions of everyday vehicles. The catch is that the production of carbon fibers is not only expensive but also consumes considerable amounts of energy and petroleum. In collaboration with Porsche Motorsport and Four Motors, researchers at the Fraunhofer WKI have succeeded in replacing the carbon fibers in a car door with natural fibers. This is already being installed in small series at Porsche. The project team is now taking the next step: Together with HOBUM Oleochemicals, they want to maximize the proportion of renewable raw materials in the door and other body parts - using bio-based plastics and paints.

  • The “Bioconcept-Car” moves ahead

In automobile racing, lightweight bodies made from plastic and carbon fibers have been standard for many years because they enable drivers to reach the finish line more quickly. In the future, lightweight-construction solutions could help reduce the energy consumption and emissions of everyday vehicles. The catch is that the production of carbon fibers is not only expensive but also consumes considerable amounts of energy and petroleum. In collaboration with Porsche Motorsport and Four Motors, researchers at the Fraunhofer WKI have succeeded in replacing the carbon fibers in a car door with natural fibers. This is already being installed in small series at Porsche. The project team is now taking the next step: Together with HOBUM Oleochemicals, they want to maximize the proportion of renewable raw materials in the door and other body parts - using bio-based plastics and paints.

Carbon fibers reinforce plastics and therefore provide lightweight components with the necessary stability. Mass-produced natural fibers are not only more cost-effective but can also be produced in a considerably more sustainable manner. For the “Bioconcept-Car” pilot vehicle, researchers at the Fraunhofer WKI have developed body parts with 100 percent natural fibers as reinforcing components.

“We utilize natural fibers, such as those made from hemp, flax or jute. Whilst natural fibers exhibit lower stiffnesses and strengths compared to carbon fibers, the values achieved are nonetheless sufficient for many applications,” explained Ole Hansen, Project Manager at the Fraunhofer WKI. Due to their naturally grown structure, natural fibers dampen sound and vibrations more effectively. Their lesser tendency to splinter can help to reduce the risk of injury in the event of an accident. Furthermore, they do not cause skin irritation during processing.

The bio-based composites were successfully tested by the Four Motors racing team in the “Bioconcept-Car” on the racetrack under extreme conditions. Porsche has actually been using natural fiber-reinforced plastics in a small series of the Cayman GT4 Clubsport since 2019. During production, the researchers at the Fraunhofer WKI also conducted an initial ecological assessment based on material and energy data. “We were able to determine that the utilized natural-fiber fabric has a better environmental profile in its production, including the upstream chains, than the fabric made from carbon. Thermal recycling after the end of its service life should also be possible without any problems,” confirmed Ole Hansen.

In the next project phase of the "Bioconcept-Car", the researchers at the Fraunhofer WKI, in collaboration with the cooperation partners HOBUM Oleochemicals GmbH, Porsche Motorsport and Four Motors, will develop a vehicle door with a biogenic content of 85 percent in the overall composite consisting of fibers and resin. They intend to achieve this by, amongst other things, utilizing bio-based resin-hardener blends as well as bio-based paint systems. The practicality of the door - and possibly additional components - will again be tested by Four Motors on the racetrack. If the researchers are successful, it may be possible to transfer the acquired knowledge into series production at Porsche.

The German Federal Ministry of Food and Agriculture (BMEL) is funding the “Bioconcept-Car” project via the project-management agency Fachagentur Nachwachsende Rohstoffe e. V. (FNR).

Background
Sustainability through the utilization of renewable raw materials has formed the focus at the Fraunhofer WKI for more than 70 years. The institute, with locations in Braunschweig, Hanover and Wolfsburg, specializes in process engineering, natural-fiber composites, surface technology, wood and emission protection, quality assurance of wood products, material and product testing, recycling procedures and the utilization of organic building materials and wood in construction. Virtually all the procedures and materials resulting from the research activities are applied industrially.

 

  • EU Project ALMA: Thinking Ahead to Electromobility

E-mobility and lightweight construction are two crucial building blocks of modern vehicle development to drive the energy transition. They are the focus of the ALMA project (Advanced Light Materials and Processes for the Eco-Design of Electric Vehicles). Nine European organizations are now working in the EU project to develop more energy-efficient and sustainable vehicles. Companies from research and industry are optimizing the efficiency and range of electric vehicles, among other things by reducing the weight of the overall vehicle. The Fraunhofer Institute for Industrial Mathematics ITWM is providing support with mathematical simulation expertise.

According to the low emissions mobility strategy, the European Union aims to have at least 30 million zero-emission vehicles on its roads by 2030. Measures to support jobs, growth, investment, and innovation are taken to tackle emissions from the transport sector. To make transport more climate-friendly, EU measures are being taken to promote jobs, investment and innovation. The European Commission's Horizon 2020 project ALMA represents one of these measures.

Emma4Drive (c) Fraunhofer ITWM
03.11.2020

EMMA4Drive - Dynamic human model for more safety and comfort in autonomous vehicles

  • DFG and Fraunhofer support trilateral project on autonomous driving

For many employees, it is an inviting vision of the future: to drive to work in their own car and still make good use of the travel time: Reading news, checking e-mails or relaxing and enjoying the first coffee of the day. In the future, passengers of autonomous vehicles will be able to pursue new activities. However, this will require new (software) tools to understand customers’ expectations, strengthen trust and demonstrate safety. With the EMMA4Drive project, the German Research Foundation (DFG) and the Fraunhofer-Gesellschaft are funding the development of a dynamic human model for the development of (partially) autonomously driving vehicles.

  • DFG and Fraunhofer support trilateral project on autonomous driving

For many employees, it is an inviting vision of the future: to drive to work in their own car and still make good use of the travel time: Reading news, checking e-mails or relaxing and enjoying the first coffee of the day. In the future, passengers of autonomous vehicles will be able to pursue new activities. However, this will require new (software) tools to understand customers’ expectations, strengthen trust and demonstrate safety. With the EMMA4Drive project, the German Research Foundation (DFG) and the Fraunhofer-Gesellschaft are funding the development of a dynamic human model for the development of (partially) autonomously driving vehicles.

Researchers from the Fraunhofer Institute for Industrial Mathematics ITWM and the company fleXstructures are developing a muscle-activated human model together with scientists from the Institute for Engineering and Computational Mechanics (ITM) at the University of Stuttgart.

This model dynamically simulates the interaction of human body parts and the vehicle seat during driving maneuvers. The resulting software prototype, EMMA4Drive, will be used as a digital image of the passenger and will analyze and evaluate his safety and ergonomics during driving maneuvers.

Realistic movements instead of quasi-static investigations
So far, human models have been used either in crash simulations to estimate the risk of injury or in ergonomic analyses. In crash analyses, detailed, computationally intensive models are used for calculations in the millisecond range, which are not suitable for the simulation of dynamic driving maneuvers, because here longer processes have to be simulated. In contrast, human models for ergonomics analysis are based on the simplified kinematics of a multi-body model and so far, only allow quasi-static investigations. Realistic postures and movements during new activities can only be modeled with a lot of effort using these models.

"The by us developed prototypical human model EMMA uses an optimization algorithm to automatically calculate new postures and movement sequences with the associated muscle activities," explains Dr. Joachim Linn, head of the department "Mathematics for the Digital Factory" at the Fraunhofer ITWM, the special feature of EMMA. "This means that the new motion sequences for (partially) autonomous driving can be implemented and examined comparatively easily in the simulation model - for example when the driver takes over the steering wheel."

EMMA4Drive thus enables a comparatively simple implementation of new movement patterns and an efficient virtual examination of safety, comfort and ergonomics in (partially) autonomous driving. "Our goal is to have a further developed prototype of our digital human model EMMA available at the end of the project, which we can use to investigate and improve seating and operating concepts when driving semi-autonomous or fully autonomous vehicles," Joachim Linn explains.

DFG and Fraunhofer support six trilateral projects with EUR 5 million
In the trilateral project EMMA4Drive, the University of Stuttgart contributes extensive experience in the fields of active human modeling, vehicle safety and model reduction. The Fraunhofer ITWM contributes expertise in multibody-based human modeling and motion optimization by means of optimal control. The company fleXstructures develops, distributes and maintains the software family IPS including the digital human model IPS IMMA, which simulates motion sequences during assembly work.

"EMMA4Drive - Dynamic human model for autonomous driving" is one of six projects funded by the DFG and Fraunhofer. The aim of the EUR five million funding is to involve companies in research innovations at an early stage. Three project partners each from universities, Fraunhofer Institutes and industry are cooperating on the basis of a joint working program. The Fraunhofer experts take the lead in the exploitation of the project results for the application partners or other interested parties from industry.

Source:

Fraunhofer Institute for Industrial Mathematics ITWM

Photo: Pixabay
28.04.2020

Meltblown Productive: Fraunhofer ITWM vs. Corona - With Mathematics Against the Crisis

  • Meltblown Productive – ITWM Software Supports Nonwoven Production for Infection Protection

Simulations by the Fraunhofer Institute for Industrial Mathematics ITWM make processes in the manufacturing of nonwovens more efficient. Within the anti-corona program of Fraunhofer the production of infection protection is optimized.
 
Nonwovens production is currently attracting more attention than ever before from the general public, because in times of the corona pandemic, nonwovens are vital for infection protection in the medical sector and also for the protection of the entire population. Disposable bed linen in hospitals, surgical gowns, mouthguards, wound protection pads and compresses are some examples of nonwoven products.

  • Meltblown Productive – ITWM Software Supports Nonwoven Production for Infection Protection

Simulations by the Fraunhofer Institute for Industrial Mathematics ITWM make processes in the manufacturing of nonwovens more efficient. Within the anti-corona program of Fraunhofer the production of infection protection is optimized.
 
Nonwovens production is currently attracting more attention than ever before from the general public, because in times of the corona pandemic, nonwovens are vital for infection protection in the medical sector and also for the protection of the entire population. Disposable bed linen in hospitals, surgical gowns, mouthguards, wound protection pads and compresses are some examples of nonwoven products.

IEspecially in intensive care and geriatric care, disposable products made of nonwovens are used due to the special hygiene requirements. At the moment there are clear bottlenecks in the production of these materials. For the meltblown nonwovens class, however, it is difficult to increase production efficiency because meltblown processes are highly sensitive to process fluctuations and material impurities.
 
Although nonwovens are not all the same, the rough principle of their production is relatively similar to all industrially manufactured nonwovens: molten polymer is pressed through many fine nozzles, stretched and cooled down in an air stream and thus deposited into the typical white webs. "Meltblown" stands for the submicron fiber process whose nonwovens are responsible for the decisive filter function in face masks.
 
With meltblown technology, nonwoven fabrics are produced directly from granules. A special spinning process in combination with high-speed hot air is used to produce fine-fibered nonwovens with different structures. The fibers are highly stretched by the turbulent air flow. During this process they swirl in the air, become entangled and fall more or less randomly onto a conveyor belt where they are further consolidated - a very complex process. Nonwovens manufacturers around the world are striving to massively increase their production capacities.
 
Digital Twin Optimizes Meltblown Process    
This is where the software of the ITWM comes into play. "Our Fiber Dynamics Simulation Tool FIDYST is used to predict the movement of the fibers, their falling and the orientation with which they are laid down on the conveyor belt. Depending on the process settings, turbulence characteristics are generated and thus nonwoven qualities are created that differ in structure, fiber density and strength," explains Dr. Walter Arne from the Fraunhofer ITWM. He has been working at the institute for years on the simulation of various processes involving fibers and filaments.

The methodology is well transferable to meltblown processes. In these processes, one of the specific features is the simulation of filament stretching in a turbulent air flow - how the stretching takes place, the dynamics of the filaments and the diameter distribution. These are all complex aspects that have to be taken into account, but also the flow field or the temperature distribution. The simulations of the scientists at the Fraunhofer ITWM then provide a qualitative and quantitative insight into the fiber formation in such meltblown processes - unique in the world in this form when it comes to simulate a turbulent spinning process (meltblown).

Nonwoven Manufacturers benefit from Simulation
What does this mean for the industry? The production of technical textiles becomes more efficient, but the nonwovens can also be developed without having intensive productions tests in a real facility. This is because the simulations help to forecast and then optimize the processes using a digital twin. In this way, production capacities can be increased while maintaining the same product quality. Simulations save experiments, allow new insights, enable systematic parameter variations and solve up-scaling problems that can lead to misinvestments during the transition from laboratory to industrial plant.

Making a Contribution to Overcome the Crisis With Many Years of Expertise
"We want to demonstrate this in the project using a typical meltblown line as an example - for this we are in contact with partner companies," says Dr. Dietmar Hietel, head of the department "Transport Processes" at the Fraunhofer ITWM. "Within the framework of Fraunhofer's anti-corona program, we want to use our developed expertise and our network to contribute to overcome the crisis", reports Hietel. His department at the Fraunhofer ITWM has been pursuing research in the field of technical textiles for around 20 years. Due to its current relevance, the project not only got off to a quick start, but the implementation and results should now also be implemented quickly: The project is scheduled to run from April 15th 2020 to August 14th 2020. The kick-off meeting took place on April 17th 2020 via video conference.
 
The project "Meltblown productive" and the results are certainly interesting for nonwoven producers. The production of many mass products has often been outsourced to Asia in the past decades; the nonwovens manufacturers remaining in Germany and Europe tend to focus more on high-quality technical textiles. In the medium and longer term, this will also be a scientific preliminary work when production capacities in Germany and Europe are expanded by new plants. One lesson to be learned from the crisis will also be to reduce the dependence on producers in Asia, especially as a precautionary measure for crisis scenarios.

Source:

Fraunhofer Institute for Industrial Mathematics, ITWM

DIGITALE PROZESSKETTE SICHERT ZUKUNFT DES LEICHTBAUS © Reed Exhibitions Deutschland GmbH
10.09.2019

DIGITAL PROCESS CHAIN SECURES THE FUTURE OF LIGHTWEIGHT CONSTRUCTION

  • At COMPOSITES EUROPE from 10 to 12 September
     
  • Incubator of ideas for multi-material lightweight construction
     
  • „Ultralight in Space“: Market study examines lightweight construction trends in aerospace

Whenever there’s movement, mass and weight quickly become destroyers of energy. From 10 to 12 September, the Lightweight Technologies Forum (LTF) at COMPOSITES EUROPE in Stuttgart will show how lightweight construction contributes to more efficient and better cars, airplanes and machines. The focus at the Forum will be on the commercially viable implementation of cross-material and holistic lightweight construction systems. The way to get there is through the digitalisation of the process chain.

  • At COMPOSITES EUROPE from 10 to 12 September
     
  • Incubator of ideas for multi-material lightweight construction
     
  • „Ultralight in Space“: Market study examines lightweight construction trends in aerospace

Whenever there’s movement, mass and weight quickly become destroyers of energy. From 10 to 12 September, the Lightweight Technologies Forum (LTF) at COMPOSITES EUROPE in Stuttgart will show how lightweight construction contributes to more efficient and better cars, airplanes and machines. The focus at the Forum will be on the commercially viable implementation of cross-material and holistic lightweight construction systems. The way to get there is through the digitalisation of the process chain.

From the idea to the component – that’s the path the Lightweight Technologies Forum aims to illuminate and support. To that end, the forum will gather current lightweight construction projects in Stuttgart, including from automotive engineering, aerospace and mechanical engineering – precisely those industries whose stringent material, safety and reliability demands make them idea generators for many other industries.
The commonality that runs through all the projects: a consistently digital process chain contributes significantly to the implementation of innovations. Another focus area is connecting and joining technology in multi-material lightweight construction.

"The Lightweight Technologies Forum is conceived as a cross-industry and cross-material incubator of ideas, a place where all stakeholders can consider new concepts. For that, we’re bringing successful flagship projects to Stuttgart”, says Olaf Freier, who on behalf of organiser Reed Exhibitions is responsible for the programme of the forum.

The growing significance of digitalisation and bionics
Support in putting together the forum programme comes from Automotive Management Consulting (AMC). The consulting company specialises in lightweight construction strategies, processes and structures in the automotive industry. “Lightweight construction requires comprehensive, systematic thinking”, says Rainer Kurek, the managing director of AMC. “The most important key factor, though, is the digitalisation of the process chain. Only virtual and simulation-driven design work can bring about competitive lightweight construction products, because they’re launched faster and ensure process safety while costing far less in development”, Kurek adds.

„Ultralight in Space“: Market study on lightweight construction trends in the aerospace industry
When it comes to ultra-lightweight construction, space travel has played a pioneering role since its inception, having driven many disciplines to new record performances. In cooperation with the Luxembourg-based aerospace suppliers GRADEL, AMC are currently conducting a market study to examine the latest technological trends. The results will be revealed at the LTF in Stuttgart on 10 September.
"Even though aerospace is a niche business: technical solutions that meet the stringent material demands here lead the way into the future, which in turn impacts other industries. That’s why it’s important to know the customer’s needs as well as the lightweight strategies, processes, structures and material decision-making of this market”, Rainer Kurek says assuredly.

Also underlining how important space travel is for the development of new technologies is Claude Maack, managing director of GRADEL: “All components are exposed to extreme conditions. Right from the launch of the rocket, they have to withstand enormous acceleration forces. In space, material must resist radiation exposure – and for many years. Then there are the high temperature differences from minus 185 to plus 200 degrees Celsius – alternating every couple of hours from one extreme to the other.“

The material question: Composites with biggest growth potential
Metals currently hold the largest market share among lightweight materials – but fibre-reinforced composites are said to have the biggest growth potential. More and more often they get to apply their strengths in lightweight construction. In the exhibition area, the LTF demonstrates how glass-fibre reinforced (GFRP) and carbon-fibre reinforced plastics (CFRP) play to their strengths in hybrid structural components.
On display, among other things, will be an ultra-lightweight seat by Automotive Management Consulting (AMC), Alba tooling & engineering and csi entwicklungstechnik GmbH, which was presented as a feasibility study – based on the lightweight construction innovation xFK in 3D – and virtual prototype at the 2018 LTF.

The innovative ultra-lightweight seat, which only weighs 10 kg, is based on a special winding process for fibre-composite components. The  “xFK in 3D process” uses a resin-impregnated continuous fibre from which components are wound and produced without waste to match the load. Conceivable uses for the concept seat include the so-called hypercars, sports cars and the air taxis of the future. Just a few weeks ago, the prototype was presented to the public and swiftly recognised with the German Innovation Award.

Exhibitors will be presenting additional lightweight construction solutions in the adjacent Lightweight Area. Some examples include structural components, semi-finished goods, technical textiles, adhesives and resins for automotive engineering and aerospace.

Altogether, visitors of the Lightweight Technologies Forum and COMPOSITES EUROPE will meet 300 exhibitors from 30 countries who will come to Stuttgart to showcase the entire process chain of fibre-reinforced plastics – from materials to machines for processing to concrete application examples from automotive engineering, aerospace, mechanical engineering, construction, wind power, and the sports and leisure sector. Besides new products, a special focus of the trade fair will be on advances in process technologies for large-scale series production.  
 

(c) Messe Frankfurt Exhibition GmbH
09.04.2019

Clothing Production in the Future

Individualisation, automation and digitalisation: micro-factories are the way forward for the future of clothing production and will be the main theme of Texprocess in Frankfurt am Main from 14 to 17 May 2019.

“Send your favourite design to the manufacturer today via an app and wear your individually designed, perfectly fitting trainers or shirt tomorrow.
It’s a long time since this was just a pipe dream for the future,” says Michael Jänecke, Director Brand Management Technical Textiles and Textile Processing at Messe Frankfurt. “Behind it, however, lies a host of complex processes, involving production, processing and logistics. Micro-factories, based on networked and integrated procedures, represent the progressive way of making textile processing quicker, more flexible and, because it is more local, also more sustainable; whilst, at the same time, producing personalised products.”

Individualisation, automation and digitalisation: micro-factories are the way forward for the future of clothing production and will be the main theme of Texprocess in Frankfurt am Main from 14 to 17 May 2019.

“Send your favourite design to the manufacturer today via an app and wear your individually designed, perfectly fitting trainers or shirt tomorrow.
It’s a long time since this was just a pipe dream for the future,” says Michael Jänecke, Director Brand Management Technical Textiles and Textile Processing at Messe Frankfurt. “Behind it, however, lies a host of complex processes, involving production, processing and logistics. Micro-factories, based on networked and integrated procedures, represent the progressive way of making textile processing quicker, more flexible and, because it is more local, also more sustainable; whilst, at the same time, producing personalised products.”

In a total of four micro-factories at the up-coming Texprocess, trade visitors will be able to get an idea of how integrated textile processing works and where micro-factories are already being used.


Digital Textile Micro-Factory: on-demand and virtual reality
Following the success of the last event, Texprocess, in collaboration with the German Institutes of Textile and Fibre Research in Denkendorf (Institute für Textil- und Faserforschung Denkendorf – DITF) and partners from industry, will once again be presenting a ‘Digital Textile Micro-Factory’ display - and thus fully networked production chains - live in Hall 4.1. New this year: the ‘Digital Textile Micro-Factory’ will showcase three production lines – one for apparel manufacture, one for 3D-knitted shoes and one for processing technical textiles, largely for the motor-vehicle and furniture industries.

‘Fashion Line’ integrates virtual prototypes and customer interaction
The fashion industry plays a central role in the ‘Digital Textile MicroFactory’. The customer’s digital doppelganger is becoming more and more important in development departments in the apparel industry as the starting point for individualised and perfectly fitting clothes and for links with finishing departments. In the context of the micro-factory’s production line, it is the key feature.

The production line demonstrates the various stages involved, including CAD/Design, printing, cutting out, assembly, finishing and labelling. New approaches also combine 3D simulations of clothing with direct data transfer in virtual reality (VR) and augmented reality (AR). Instead of presenting the customer with physical examples of the clothing to be produced, the examples are visualised as virtual objects. And during the production process, the customer has the opportunity for direct input into the design of the product in question. This direct interaction between the 3D simulation of an item, the representation in VR/AR displayed on the customer’s own hardware and the direct impact on the production process has never been shown before in this way. Partners of the ‘Fashion Line’ are: Assyst (CAD/design), Mitwill (materials), Caddon, ErgoSoft, Mimaki and Multiplot (printing), Zünd (cutting), Juki and Stoll (assembling), Veit (finishing) and Vuframe (AR/VR).

3D knitting on the way to Industry 4.0
From 3D image to finished prototype in 18 minutes: the future is here in the world of knitting too! The ‘Digital Textile Micro-Factory’ at Texprocess and Techtextil shows a workflow which enables 3D-knitted uppers for shoes to be produced directly from the customer’s own particular foot measurements.
The ‘3D-knitting Line’ of the micro-factory demonstrates the process from the 3D model to the creation of a geometrically accurate knitting pattern by the software, based on the 3D data set, and the development of a specification of the final knitting data, through to the manufacture of a 3D-knitted prototype. Knitting is the additive manufacturing process for textiles. The ‘3D-knitting Line’ is partnered by Stoll.

Processing technical textiles in the micro-factory
Industry 4.0 live: the focus of the third production line of the ‘Digital Textile Micro-Factory’ 2019 is on the automated processing of technical textiles, personalised for the individual customer, taking us right through to the finished product. Trade visitors will see here on-demand inkjet printing and networked machines with integrated sensors, which are linked through a bus system – a future-oriented topic for integrated manufacturing. A robot arm with a special claw for use with textiles sorts the cut items as they emerge from the cutter in a free-moving open shuttle. The items to be sewn are conveyed automatically to the sewing stations. Tracing and tracking procedures show the progress of each order through the individual stages of the manufacturing process using an auto ID. In addition, the display will also show how creative ideas from the Cloud can be incorporated in the manufacture of technical products. Technology meets creativity. Partners of the production line: Mitwill (design), ErgoSoft (RIP), Caddon (colour management), HP (large-format inkjet printing), Zünd (cutting), Dürkopp Adler (networking, integration of an open shuttle, sewing), Veit (finishing), Next Robotics (material handling).

Smart Textiles Micro-Factory: industrial-type production of smart textiles
In their ‘Smart Textiles Micro-Factory’, located in the walkway between Halls 4.1 and 5.1, the Institute for Textile Technology (ITA) at the RWTH Aachen University, together with partners from industry and research, will be producing a ‘smart’ pillow which, with the help of integrated LEDs, provides new ways of interaction. With this demonstration, the partners in the project will present an exemplary, industrial-style manufacturing process for a smart textile from design to finished product. The prototype of the pillow was displayed in advance at Heimtextil 2019. The following are all involved in the ‘Smart Textiles Micro-Factory’: the Institute for Textile Technology (ITA) of the RWTH Aachen University (project coordination), Gerber Technology GmbH (cutting), the Korea Institute for Industrial Technology KITECH (electronics), VETRON TYPICAL Europe GmbH (sewing), Wear it GmbH (product design and concept) and ZSK Stickmaschinen GmbH (embroidery).
 
World of Digital Fashion: customisation of apparel
Six companies have grouped together under the ‘World of Digital Fashion’ umbrella. They work in areas of visualisation, CAD-cutting systems, automated body measurement, cutting out and process automation. Together, they will be showcasing, in Hall 4.0, ways of integrating and combining their products in a variety of workflows within the value creation chain and will enable visitors to experience what the digital process chain is like in practice. The focus will fall particularly on the customisation of apparel and fashion items. Partners of the ‘World of Digital Fashion’ are: Browzwear Solutions and Tronog (visualisation), Software Dr. K. Friedrich (CAD), Fision (automated body measurement), Bullmer (cutting), as well as Gertsch Consulting and Mode Vision (process automation).

Micro-factory presented by Efka and Gemini: easy to implement
Manufacturers of drive mechanisms for industrial sewing machines Efka will,in collaboration with CAD suppliers Gemini, be showcasing the production of a knitted garment that can be individually designed. The core element of their micro-factory, which closely reflects industrial practice, is the link to the sewing stage of production, something which is already available today as an economic, partially automated solution. The display presents a solution that can be easily implemented and adopted by most companies, using already available resources.

 

More information:
Texprocess
Source:

Messe Frankfurt Exhibtion GmbH

10.10.2017

IMM COLOGNE 2018: THE BATHROOM IS COMING TO COLOGNE

  • imm cologne is being enriched with interiors ideas revolving around the bathroom
  • Many sanitation providers will present themselves to design decision makers in the Pure Architects Segment
  • Pure Architects offers attractive synergies for the bathroom with the trend theme of life
 
From 15 to 21 January 2018, the new trade fair format Pure Architects will start at imm cologne, with the strong participation of leading sanitation brands. Relaxing wellness hours or fitness cult, country house style or urban chic, parquet or tiles in wood look, hanging lamps over the real wood washstand, decorative sheepskin or trendy cement tiles: the bathroom is being increasingly perceived and used as living space. Koelnmesse also sees the increasing demands of clients for their new bathrooms reflected in the increasing number of individual exhibitors from the bathroom product segment.
  • imm cologne is being enriched with interiors ideas revolving around the bathroom
  • Many sanitation providers will present themselves to design decision makers in the Pure Architects Segment
  • Pure Architects offers attractive synergies for the bathroom with the trend theme of life
 
From 15 to 21 January 2018, the new trade fair format Pure Architects will start at imm cologne, with the strong participation of leading sanitation brands. Relaxing wellness hours or fitness cult, country house style or urban chic, parquet or tiles in wood look, hanging lamps over the real wood washstand, decorative sheepskin or trendy cement tiles: the bathroom is being increasingly perceived and used as living space. Koelnmesse also sees the increasing demands of clients for their new bathrooms reflected in the increasing number of individual exhibitors from the bathroom product segment. Its new offering of a specific presentation platform at imm cologne is currently being noted with great interest in the sanitation segment. Visitors to imm cologne will thus already have the opportunity in January 2018 to see for themselves live and experience how the boundaries between bathrooms and living spaces are becoming increasingly blurred in interior design.
 
imm cologne creates the ideal basic conditions for sanitation assortments
With the new design possibilities, doors for new forms of presentation are also opening for sanitation assortments. The international interiors show imm cologne has now developed a special format for assortments that, like the bathroom, enter into a relationship with the architecture: Pure Architects. The participation of leading brands of the sanitation industry confirms the need and the successful Cologne offering of a solution for the integration of the bathroom into the lifestyle context of an interiors show. The sanitation companies anticipate new impulses from the target group orientation of Pure Architects and from a presence in a new proximity with other interior design assortments.

Premiere with renowned bathroom brands
Important players will be at imm cologne 2018. In addition to spa concepts and bathroom furniture, bathtubs and shower tubs, fittings, innovative shower WCs, mirrors, accessories, as well as saunas can also be seen. To date, brands like Antonio Lupi, burgbad, Bette, Klafs, Vola, Geberit, Laufen,Vallone, Tece or Emco are among the exhibitors of the premiere event. "We have also exhibited on occasion at imm cologne over the years. The new Pure Architects concept, with its strict target group orientation, convinced us to come again", explains Sabine Meissner, Head of Marketing for burgbad. The presentation of complete assortments is also not the plan of the bathroom furniture specialists from the Sauerland. The stand concept of Pure Architects also offers the possibility to focus on a central product or brand statement. "We will be presenting our innovative RL40 mirror cabinet programme at imm cologne 2018. It is equally both a spatial concept and a lighting solution. It is a product that requires explanation, and in Pure Architects we find a platform suited to now and again be able to tell a clientele familiar with interiors a few words more", Meissner continues.
 
Bathroom products in the context of trendy interior design worlds and light installations
In contrast with the industry trade fairs, it is primarily the context that motivates sanitation companies to participate in imm cologne: the interior design worlds of the large interiors brands as much as the advanced design of smaller design editors. The other assortment areas of Pure Archtitects are also well-suited to complete the impressions of the trade visitors and end consumers of holistic planning of the bathroom living area.
 
Another attractive common denominator for bathroom planning is provided with the theme of light, which will not only be focused on next year in Pure Architects as technical light, but will also be prominently featured in the Pure section as decorative light. Thus, for example, the visionary living space simulation "Das Haus" will be interpreted in 2018 by the Czech light designer Lucie Koldova.
However, in addition to the product offering in front of the wall, the assortments of, for example, manufacturers of tiles and floor coverings for the bathroom will also be on location. With the wall and floor covering provider Bärwolf, for example, one of the leading providers of mosaics and decorations exhibits his new interiors ideas. Florim, the manufacturer of porcelain stoneware tiles, known for, among other things, his oversized ceramic slabs, provides inspiring tiles for architects and planners. And with TheSize Surfaces, a young company with a strong orientation toward export will exhibit at imm cologne; one that can utilise the experience of more than 40 years in the field of natural stone, and which sells its slabs on the market under the brand name Neolith.

For exhibitors from the bathrooms sector, Pure Architects offers a unique opportunity to present their creative ideas for modern bathrooms in the context of an international interiors show. Visitors will have the opportunity to see for themselves how, in the world of interior design, the boundaries between bathrooms and living spaces are becoming increasingly blurred.
 
imm cologne and LivingInteriors © Koelnmesse
26.01.2016

IMM COLOGNE/LIVINGINTERIORS A SUCCESSFUL START TO THE NEW YEAR FOR THE INDUSTRY

  • 80.000 trade visitors from 128 countries
  • Significant increase in visitors from Europe
  • 1,185 exhibitors from 50 countries
  • LivingInteriors dazzles with Smarthome

From 18 to 24 January 2016 at imm cologne and LivingInteriors, a total of 1,185 companies from 50 countries presented the trends in furniture and furnishings for the coming year. Buyers from the trade with decisionmaking authority made for a dynamic trade fair during the first five days. With around 80,000 trade visitors from 128 countries, the event recorded a slight increase (4.8 percent) in trade fair visitor numbers compared to 2014. The proportion of visitors from abroad was 46 percent (based on the trade visitor days).

  • 80.000 trade visitors from 128 countries
  • Significant increase in visitors from Europe
  • 1,185 exhibitors from 50 countries
  • LivingInteriors dazzles with Smarthome

From 18 to 24 January 2016 at imm cologne and LivingInteriors, a total of 1,185 companies from 50 countries presented the trends in furniture and furnishings for the coming year. Buyers from the trade with decisionmaking authority made for a dynamic trade fair during the first five days. With around 80,000 trade visitors from 128 countries, the event recorded a slight increase (4.8 percent) in trade fair visitor numbers compared to 2014. The proportion of visitors from abroad was 46 percent (based on the trade visitor days). The development in the number of visitors from overseas was positive, while the trade fair duo recorded an especially significant increase in the number of visitors from Europe.

"This outcome shows that imm cologne is unmatched as a business event for the global furniture and furnishings industry", said Gerald Böse, President and Chief Executive Officer of Koelnmesse, summing up the event.

"This is where the world comes together to do business, which offers a lot of new opportunities for export-oriented companies. At the same time, this fair duo has proved once again that business and creative inspiration are not mutually exclusive", Böse continued. "imm cologne was a wonderful furniture show and has got us off to a very successful start to the 2016 furniture year. With so many new products and ideas, innovations and great models in all price ranges, we are confident that the German furniture industry will achieve another increase in sales this year", added Dirk-Uwe Klaas, Managing Director of the Federal Association of the German Furniture Industry (VDM). This was confirmed by Hans Strothoff, President of the Federal Association of German Furniture, Kitchens and Furnishing Retailers (BVDM): "This year's imm cologne really stimulated a keen interest in furniture. Rarely has the mood in industry and trade been so positive as at this fair. Wherever you looked, only smiling faces and great optimism. imm cologne has really catapulted the industry into the new business year with a swing."

The atmosphere among visitors was characterised by business, networking and the search for trends. In the past few years, imm cologne has raised its international profile, not just among exhibitors, but also among visitors. 2016 saw a significant increase in buyers from Europe, primarily from the Netherlands, the United Kingdom, Spain and Austria. The event also registered a clear increase in the number of visitors from overseas, especially from the USA, China and India. Including estimated figures for the last fair day, a total of 120.000 visitors were inspired by the interior design worlds.

In addition to the products on show, the highlights of the 2016 trade fair once again included "Das Haus - Interiors on Stage", a walk-through simulation of a home, which was designed this year by Sebastian Herkner, and the "Smart Home" special exhibition at LivingInteriors, where numerous companies showcased solutions for a cleverly networked home that are already available today.

Trends at imm cologne/LivingInteriors 2016

Homes are becoming homier once again Cosiness and a feeling of security are increasingly important in the home. There is also a clear enthusiasm for new combinations. Along with furniture and decorations, accessories and home textiles that suit people's preferences when used individually are combined freely. The result is homes that are as unique as their inhabitants.

Mid-century design is booming
Across all product sectors, a striking number of furniture designs are reminiscent of those from the 1940s through the 1960s. These designs make efficient use of materials, have delicate features and are lightweight and above all smaller. The trend can be explained by the smaller living spaces available in city homes, though also by a general sense of nostalgia. Like an old friend, sleek mid-century furniture proves its value in uncertain times.

Natural materials are on the rise
Wood, glass, stone and metal: natural materials are particularly popular. In addition to the large proportion of wood used, for example in tabletops, chair and table frames, valuable natural stone is an increasingly common material in tabletops. Popular varieties include the European classic "marble" as well as exotic South American stone with particularly unique veining. The use of tree bark in wall decoration is another trend on the horizon.

The next imm cologne will be held from 16 through 22 January 2017 in Cologne - together with LivingKitchen, the international event for all topics related to the kitchen.