From the Sector

The DITF is leading the joint project "DACCUS-Pre*". The basic idea of the project is to develop a new building material that stores carbon in the long term and removes more CO₂ from the atmosphere than is emitted during its production.       

In collaboration with the company TechnoCarbon Technologies, the project is now well advanced - a first demonstrator in the form of a house wall element has been realized. It consists of three materials: Natural stone, carbon fibers and biochar. Each component contributes in a different way to the negative CO₂ balance of the material:

Two slabs of natural stone form the exposed walls of the wall element. The mechanical processing of the material, i.e. sawing in stone cutting machines, produces significant quantities of stone dust. This is very reactive due to its large specific surface area. Silicate weathering of the rock dust permanently binds a large amount of CO₂ from the atmosphere.

Carbon fibers in the form of technical fabrics reinforce the side walls of the wall elements. They absorb tensile forces and are intended to stabilize the building material in the same way as reinforcing steel in concrete. The carbon fibers used are bio-based, produced from biomass. Lignin-based carbon fibers, which have long been technically optimized at DITF Denkendorf, are particularly suitable for this application: They are inexpensive due to low raw material costs and have a high carbon yield. In addition, unlike reinforcing steel, they are not susceptible to oxidation and therefore last much longer. Although carbon fibers are more energy-intensive to produce than steel, as used in reinforced concrete, only a small amount is needed for use in building materials. As a result, the energy and CO₂ balance is much better than for reinforced concrete. By using solar heat and biomass to produce the carbon fibers and the weathering of the stone dust, the CO₂ balance of the new building material is actually negative, making it possible to construct CO₂-negative buildings.

The third component of the new building material is biochar. This is used as a filler between the two rock slabs. The char acts as an effective insulating material. It is also a permanent source of CO₂ storage, which plays a significant role in the CO₂ balance of the entire wall element.

From a technical point of view, the already realized demonstrator, a wall element for structural engineering, is well developed. The natural stone used is a gabbro from India, which has a high-quality appearance and is suitable for high loads. This has been proven in load tests.  Bio-based carbon fibers serve as the top layer of the stone slabs. The biochar from Convoris GmbH is characterized by particularly good thermal insulation values.

The CO₂ balance of a house wall made of the new material has been calculated and compared with that of conventional reinforced concrete. This results in a difference in the CO₂ balance of 157 CO₂ equivalents per square meter of house wall. A significant saving!

* (Methods for removing atmospheric carbon dioxide (Carbon Dioxide Removal) by Direct Air Carbon Capture, Utilization and Sustainable Storage after Use (DACCUS).

Freudenberg Performance Materials Apparel (Freudenberg) launches two advanced thermal insulation products made from low-level Bisphenol A (BPA) recycled PET fibers (rPET) into the global range of comfortemp®, Freudenberg’s thermal insulation brand.

The additions of DOWN FEEL WA 150LB and FIBERBALL WB 400LB to the comfortemp® global range serve as high-quality and ecologically-minded alternatives to down, enhancing the comfort and sustainability of your garments. DOWN FEEL WA 150LB is an extremely-lightweight, loose fiber thermal insulation with a super-light loft, while FIBERBALL WB 400LB uses clusters of extra-fine fibers to offer optimal breathability, maximum comfort, and minimal clumping after washing and drying.

GRS-certified and OEKO-TEX® STANDARD 100 Class I certifications
Both products utilize 100% GRS-certified rPET fibers, customizable to any desired fill levels. Additionally, these new products not only comply with but significantly surpass the stringent OEKO-TEX® STANDARD 100 Class I certifications. While OEKO-TEX® categorizes low-level BPA as less than 100 parts per million (ppm), these new products contain less than 1 ppm BPA, a testament to Freudenberg’s unyielding standards.

DOWN FEEL WA 150LB and FIBERBALL WB 400LB are available globally and more low-level BPA thermal insulation options are available in Asia.

With regard to current and imminent requirements to strengthen and promote the recycling of garment waste in order to safe valuable textile fibre in the European but also worldwide textile economy DiloGroup announces the start of a close cooperation between Dilo, Germany and the Italian companies Dell’Orco & Villani and TechnoPlants. This cooperation forms a group of expertise to supply complete projects in the area of textile recycling.

Dell’Orco & Villani is a long term highly experienced and innovative specialist in the field of tearing equipment to recycle textile garment clippings. This technology maintains as much as possible the staple length of reopened fibre from yarn in knitted and woven textiles. This special tearing process avoids the downgrading and shortening of the staple.

TechnoPlants is a highly experienced specialist in the field of aerodynamic web forming and through air technology with particular emphasis on reclaimed fibre for various applications as for example in acoustic and thermal insulation, car parts, upholstery and bedding.

DiloGroup with DiloSystems GmbH is a general contractor who is specialized in the area of fibre preparation, carding, cross-lapping and needling who will act as a turnkey general provider of complete projects including Dell’Orco & Villani components to reclaim wasted fibre as well as TechnoPlants components when aerodynamic web forming is included or when carding, cross-lapping is selected together with through-air ovens and end-of-line equipment including packaging from TechnoPlants.

The expertise of the three companies together is a source for the complete know-how in this large area of applications to reuse fibre from textile waste in new nonwoven material.

With the beginning of upcoming ITMA 23, more details of the organizational structure of this cooperation among the three companies will be released and project engineering will be started.

As an accredited testing and certification body, the “OETI - Institut fuer Oekologie, Technik und Innovation GmbH“ (OETI for short) has been successfully responding to prevailing market requirements for 55 years and, in the process, has made a name for itself worldwide. To mark its anniversary, this international centre of excellence with its origins in Austria is taking a look back at the most important milestones in its history as well as providing interesting insights into future developments.

As renowned flooring manufacturers founded the Austrian Carpet Institute on 25th of September 1967, no one could have imagined how successful the company would become. But even back then, one thing was clear to the experts: the need to establish a carpet research and testing centre in the form of an association. Today, over five decades later, OETI is a testing and certification services provider for OEKO-TEX® certificates and labels, textiles, leather, due diligence along the textile and leather supply chain as well as for personal protective equipment (PPE), flooring technology, furnishings and indoor air quality.

In 1992, OETI was a founding member of the ‘International OEKO-TEX® Association for Research and Testing in the Field of Textile and Leather Ecology’ with independent certifications and product labels. Ever since, OEKO-TEX® has enabled companies along the textile and leather supply chain and every consumer to make responsible decisions for safe, environmentally friendly and fairly manufactured products.

In line with its focus on sustainability, OETI and its Swiss parent company, TESTEX AG, wanted to build the new OETI headquarters using low energy construction techniques and ensure its carbon-neutral operation. To achieve these goals, the highest possible thermal insulation and energy optimisation standards were applied, while the carbon-neutral power supply is generated by its in-house photovoltaics system as well as domestic renewable energy.

The new headquarters, which the company moved into in 2021, provides space for 75 employees over 2,500m2 and boasts bright and perfectly equipped office areas. The laboratory areas, the analytical/chemical laboratory and the physical / fire laboratory were also designed based on the latest methods and technologies. This makes OETI, alongside its Swiss parent company TESTEX, the second fully fledged laboratory site in the entire, global TESTEX Group.

Freudenberg Performance Materials (Freudenberg) offers a range of efficient interlinings, tapes and thermal insulation materials for workwear and protective clothing. The materials not only withstand diverse kinds of strain they are exposed to in everyday work and washing procedures but also offer great comfort.

Innovative materials and manufacturing technology
The nonwoven and woven interlinings and tapes stand out due to a number of features, such as increased stability, elasticity, abrasion resistance and wind-blocking properties. Thanks to the sophisticated adhesive technology used by the manufacturer of technical textiles, some products are especially resistant and durable.

Highly flexible and resilient interlinings as well as Freudenberg comfortemp® thermal insulation materials are used for protective clothing, and they do not only protect the wearer from danger but also ensure the wearer’s comfort in any kind of weather. Furthermore, hem and edge stabilisation tapes ensure optimal fit and reflective tapes provide additional safety.  

Active contribution to sustainability
Many products of the Freudenberg Workwear Range consist of a high percentage of recycled polyester coming from post-consumer PET bottles.