{"id":46093,"date":"2025-03-28T15:10:24","date_gmt":"2025-03-28T14:10:24","guid":{"rendered":"https:\/\/composites-united.com\/?p=46093"},"modified":"2025-03-28T15:17:23","modified_gmt":"2025-03-28T14:17:23","slug":"a-focus-on-textile-filtration-trends","status":"publish","type":"post","link":"https:\/\/composites-united.com\/en\/a-focus-on-textile-filtration-trends\/","title":{"rendered":"A focus on textile filtration trends"},"content":{"rendered":"\t\t
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Review: 17th Symposium TEXTILE FILTER<\/h3>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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On 11 and 12 March, the 17th Symposium TEXTILE FILTER took place in Chemnitz, Germany. Every two years, experts from science and industry come together to discuss the latest developments in the field of textile filter media. This year’s event focused on sustainability, bio-based materials and digital simulations to optimise filtration processes. The symposium was accompanied by an exhibition and an excursion to the host, the S\u00e4chsisches Textilforschungsinstitut e.V.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Sustainable and biobased filter media<\/strong><\/p>

Reducing the CO2<\/sub>\u00a0footprint through resource-efficient filtration materials was one of the key themes of the symposium. One presentation presented an automated life cycle assessment (LCA) process for filter materials that enables a systematic evaluation of their environmental impact. The methodology allows precise analysis of material selection and production processes to optimise the sustainable use of filter media. In addition, hydroentangled nonwovens were presented as an environmentally friendly alternative to conventional filter materials. The innovative materials presented combine high filtration efficiency with improved environmental performance. In addition, sustainable concepts for reuse and recycling of filter media were considered in order to reduce waste and extend the life of the materials. Bio-based materials also played a key role. Meltblown nonwovens made from polylactic acid (PLA) and polyethylene furanoate (PEF) were offered as promising alternatives to conventional plastic filters. While PLA is of particular interest due to its biodegradability, PEF showed comparable filtration properties to PET and could replace fossil polymers in high temperature applications in the long term. These developments highlight the growing importance of bio-based materials in the filtration industry.<\/p><\/div><\/div><\/div><\/div><\/div><\/section><\/div><\/div>

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Dr.-Ing. Andreas R\u00f6sner (Reifenh\u00e4user) speaks about optimisation of the melt-blown and hydrocharging process<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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Dr. Erik Uhde (Fraunhofer) in dialogue with Dr. Yvette Dietzel (STFI)<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Digital simulation and filter optimisation<\/strong><\/p>

Another key topic of the symposium was the use of digital twins to simulate filtration processes. Digital twins are symbolically virtual models of real filter processes that can be used to optimise material selection and process control. New software tools such as VISPI (Virtual Spinning) and FIDYST (Fiber Dynamics Simulation Tool) enable a detailed analysis of fibre deposition and material behaviour, enabling more precise control of production processes. One particular highlight was a newly developed simulation model for predicting the ageing behaviour of electret filters. Electret filters utilise electrostatic charges to separate particles, whereby the efficiency can decrease over time due to environmental influences. Simulations allow these ageing processes to be predicted more accurately so that manufacturers can optimise their filters specifically for a longer service life. A guide to optimising minipleat pleated filters was also presented. This is intended to provide small and medium-sized companies in particular with practical support for improving the pressure difference and energy efficiency. With the help of the GeoDict\u00ae<\/sup>\u00a0simulation software, ideal pleat geometries can be developed to minimise the pressure loss and increase the service life of the filter elements. Another important topic of filter optimisation was material compression and its influence on the pressure loss and dust holding capacity of filter media. The research results presented showed that targeted material compression can have a significant impact on filter efficiency. Computer-aided flow simulations (CFD) were used to analyse various degrees of compression in order to find the optimum balance between filter performance and pressure difference. Another key point was the characterisation of filter media using 3D image analyses and flow simulations. The DNSlab\u00ae software enables detailed analyses of pore structures, air permeability and separation efficiency. A new Python interface allows simulation-based variation calculations to be carried out, which can supplement or even replace physical laboratory tests.<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Exhibition of the 17th Symposium TEXTILE FILTER<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t

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Special exhibition SILBERGLANZ & KUMPELTOD at the State Museum of Archaeology (smac)<\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Regulations and new test procedures<\/strong><\/p>

In addition to technological innovations, current standards and regulations in the filtration industry were discussed. The forthcoming publication of VDI Guideline 3677 Part 2, which deals with fibre depth filters, was presented in detail. This new guideline provides a comprehensive classification and describes the manufacture and use of textile filter media in various applications. Particular emphasis is placed on the sustainability and technical performance of these filter types. Another focus was the introduction of new test methods for welding and laser fume collectors. In view of the increasing limit values for hazardous particles in the workplace, a new standard has been developed that requires a much stricter concentration of clean air. The new VDI 2262 stipulates that the workplace limit value must be undercut by a factor of 0.2 in order to increase occupational safety in metalworking companies. This new regulation represents a significant step forward in health protection.<\/p>

New applications and filter technologies<\/strong><\/p>

A much-noticed lecture was dedicated to indoor air filtration and looked at the interactions between textile materials and air pollutants. Textile materials act as both a source and a sink for volatile organic compounds and can have a significant impact on indoor air quality. Research in this area is helping to develop new filter solutions for healthier indoor air. In the field of industrial dedusting, typical sources of error and optimisation potential were discussed. Mechanical stresses such as abrasion or thermal overloading of filters, which can lead to premature wear, are particularly problematic. Solutions such as optimised cleaning-in-place (CIP) processes and improved material selection can help to extend the service life of filter elements. Another highlight was the presentation of new technologies for flue gas cleaning. The membrane filter systems presented achieved a particle separation rate of over 99.99 % in a biomass incineration plant, which emphasises the need for new assessment methods for emissions. The current mass-based limit values often do not capture ultrafine particles precisely enough, which is why new measurement methods are required. An innovation for medical technology was also presented at the initial investigation stage. New polyvinylidene fluoride hollow fibres for dialysis filters could extend the duration of dialysis and reduce the need for medication. Investigations into the material composition and pore structure of these hollow fibres showed promising results for more efficient filtration in medical technology and offer a need for further research.<\/p>

Summary<\/strong><\/div><\/div><\/div><\/div><\/div>

The 17th<\/sup>\u00a0Symposium TEXTILE FILTER impressively demonstrated how innovative materials and digital technologies are revolutionising filtration technology. Sustainability, biobased materials and process simulation play a central role in the development of efficient and environmentally friendly filter media. The numerous technical presentations provided valuable insights into the latest research results and industrial developments. In addition to the technical exchange, the social programme, which included an exhibition and an excursion, complemented the discussions in a practical way and contributed to the networking of the participants. The symposium will be held for the 18th<\/sup>\u00a0time on 9 and 10 March 2027, when new highlights in the further development of the filter industry are expected.<\/p>

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Contact:<\/strong><\/p>

S\u00e4chsisches Textilforschungsinstitut e.V. (STFI)
Annaberger Str. 240
09125 Chemnitz<\/p>

Kareen Pfab | Public Relations
+49 371 5274-197
kareen.pfab@stfi.de<\/a>
www.stfi.de<\/a><\/p>\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Review: 17th Symposium TEXTILE FILTER On 11 and 12 March, the 17th Symposium TEXTILE FILTER took place in Chemnitz, Germany. Every two years, experts from science and industry come together to discuss the latest developments in the field of textile filter media. This year’s event focused on sustainability, bio-based materials and digital simulations to optimise […]<\/p>\n","protected":false},"author":5,"featured_media":46071,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30,171],"tags":[],"main-cat":[144,36,34],"bildung":[],"forschungs-cat":[],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/composites-united.com\/en\/wp-json\/wp\/v2\/posts\/46093"}],"collection":[{"href":"https:\/\/composites-united.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/composites-united.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/composites-united.com\/en\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/composites-united.com\/en\/wp-json\/wp\/v2\/comments?post=46093"}],"version-history":[{"count":11,"href":"https:\/\/composites-united.com\/en\/wp-json\/wp\/v2\/posts\/46093\/revisions"}],"predecessor-version":[{"id":46105,"href":"https:\/\/composites-united.com\/en\/wp-json\/wp\/v2\/posts\/46093\/revisions\/46105"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/composites-united.com\/en\/wp-json\/wp\/v2\/media\/46071"}],"wp:attachment":[{"href":"https:\/\/composites-united.com\/en\/wp-json\/wp\/v2\/media?parent=46093"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/composites-united.com\/en\/wp-json\/wp\/v2\/categories?post=46093"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/composites-united.com\/en\/wp-json\/wp\/v2\/tags?post=46093"},{"taxonomy":"maincategory","embeddable":true,"href":"https:\/\/composites-united.com\/en\/wp-json\/wp\/v2\/main-cat?post=46093"},{"taxonomy":"bildung","embeddable":true,"href":"https:\/\/composites-united.com\/en\/wp-json\/wp\/v2\/bildung?post=46093"},{"taxonomy":"forschung","embeddable":true,"href":"https:\/\/composites-united.com\/en\/wp-json\/wp\/v2\/forschungs-cat?post=46093"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}