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Winder manufactured by Comoli Fermo S.r.l, Paruzzaro, Italy Photo: ITA – Institut für Textiltechnik of RWTH Aachen University
Winder manufactured by Comoli Fermo S.r.l, Paruzzaro, Italy
06.03.2024

ITA: Unique Winder for Elastic Filament Yarn Development

Since March 1st 2024, the technical centre of Institut für Textiltechnik of RWTH Aachen University (ITA) has been equipped with an additional winder.

This globally unique winder has been manufactured by Comoli Fermo S.r.l, Paruzzaro, Italy, and enables the development of elastic yarns for numerous and innovative areas of application. Monofilament and multifilament yarns can be spun within a speed range of 100 to 3,200 m/min on bobbins with an industrial standard size of 73.6 mm x 83.8 mm x 115.5 mm.

The use of these bobbins enables immediate further processing along the textile process chain, for example in production of elastic combination yarns or knitting. Due to the high flexibility of this winder in combination with the available spinning plants at ITA, testing is possible with material amounts starting from a few hundred grams up to hundreds of kilograms.

Since March 1st 2024, the technical centre of Institut für Textiltechnik of RWTH Aachen University (ITA) has been equipped with an additional winder.

This globally unique winder has been manufactured by Comoli Fermo S.r.l, Paruzzaro, Italy, and enables the development of elastic yarns for numerous and innovative areas of application. Monofilament and multifilament yarns can be spun within a speed range of 100 to 3,200 m/min on bobbins with an industrial standard size of 73.6 mm x 83.8 mm x 115.5 mm.

The use of these bobbins enables immediate further processing along the textile process chain, for example in production of elastic combination yarns or knitting. Due to the high flexibility of this winder in combination with the available spinning plants at ITA, testing is possible with material amounts starting from a few hundred grams up to hundreds of kilograms.

Source:

ITA – Institut für Textiltechnik of RWTH Aachen University

Professor Dr Thomas Gries with the award winner Flávio André Marter Diniz Hanns-Voith-Stiftung, Oliver Voge
Professor Dr Thomas Gries with the award winner Flávio André Marter Diniz
11.07.2023

Future cost reduction through ultra-thin PE carbon fibres

  • ITA Master's graduate wins Hanns Voith Foundation Award 2023

In his Master's thesis, Flávio André Marter Diniz, a graduate of the Institut für Textiltechnik of RWTH Aachen University (ITA), developed ultra-thin polyethylene (PE) carbon fibres with a filament diameter 2-3 times smaller than usual. In addition, the use of PE-based precursors will make it possible to reduce the price of carbon fibres by 50 per cent in the future, thus opening up a wide range of other possible applications in key industries such as wind power, aerospace and automotive. For this groundbreaking development, Marter Diniz was awarded the Hanns Voith Prize with the Hanns Voith Foundation Award in the category "New Materials". The prize is endowed with € 5,000 in prize money.

Flávio André Marter Diniz won the prize in the category "New Materials" for his master thesis entitled "Investigation of the stabilisation and carbonisation process for the production of ultra-thin polyethylene-based carbon fibres".

  • ITA Master's graduate wins Hanns Voith Foundation Award 2023

In his Master's thesis, Flávio André Marter Diniz, a graduate of the Institut für Textiltechnik of RWTH Aachen University (ITA), developed ultra-thin polyethylene (PE) carbon fibres with a filament diameter 2-3 times smaller than usual. In addition, the use of PE-based precursors will make it possible to reduce the price of carbon fibres by 50 per cent in the future, thus opening up a wide range of other possible applications in key industries such as wind power, aerospace and automotive. For this groundbreaking development, Marter Diniz was awarded the Hanns Voith Prize with the Hanns Voith Foundation Award in the category "New Materials". The prize is endowed with € 5,000 in prize money.

Flávio André Marter Diniz won the prize in the category "New Materials" for his master thesis entitled "Investigation of the stabilisation and carbonisation process for the production of ultra-thin polyethylene-based carbon fibres".

The use of carbon fibres in highly stressed lightweight construction solutions, such as today's growth applications of wind turbines or pressure tanks, has become indispensable due to their excellent mechanical properties and low density. High manufacturing costs of conventional PAN precursor-based carbon fibres make the material very cost-intensive. In addition, it is not sufficiently available. New manufacturing approaches that develop alternative raw materials and manufacturing processes can be a key and growth engine for further industrial composites applications.

The aim of the work was to develop a new and cost-effective manufacturing process for high-quality ultra-thin carbon fibres using a polyethylene precursor. For this purpose, the sulphonisation process, which is time-consuming today, was to be significantly shortened. As a result, Mr. Marter Diniz produced novel ultra-thin polyethylenebased carbon fibres with a filament diameter < 3 μm with an excellent surface quality of the fibres without detectable structural defects. The fibre diameter is 2-3 times smaller than that of conventional PANbased CF. This provides the basis for mechanically high-quality material properties. At the same time, Mr. Marter Diniz was able to reduce the sulphonisation time by 25 percent. The developed material and technology set important milestones on the way to cheaper carbon fibres. With PE-based precursors, the price of CF can be reduced by 50 percent compared to conventional PAN-based CF.  

A total of five other young scientists were awarded in six categories (Drive Technology, Innovation & Technology/Artificial Intelligence, New Materials, Paper, Hydropower and Economic Sciences. This year, for the 10th time, the Hanns Voith Foundation awarded the Hanns Voith Prize to outstanding young scientists.

Source:

ITA Institut für Textiltechnik of RWTH Aachen University

Recycled yarn (c) ITA Aachen
05.05.2023

ITA at the ITMA: Smart Circular Economy

"ITA Aachen and ITA Augsburg are part of the ITA Group International Centre for Sustainable Textiles. Experience our textile innovations at two exhibition booths," explains ITA Institute Director Professor Dr. Thomas Gries. "See our ring spinning tester at booth H3-B304, which spins recycled fibres sustainably and individually in a previously impossible fineness. In addition, there is digital yarn monitoring, which enables new market potentials. Get an idea of the Recycling Atelier of ITA Augsburg at booth H3-A207 and see the textile cycle from used textile to solution steps for industrial implementation together with industry partners. Join us on the Walk4Recycling and follow the path from used textile to a new knitted pullover on a tour of the trade fair. This is how we live up to our claim as the ITA Group: sustainable - digital - individual."

"ITA Aachen and ITA Augsburg are part of the ITA Group International Centre for Sustainable Textiles. Experience our textile innovations at two exhibition booths," explains ITA Institute Director Professor Dr. Thomas Gries. "See our ring spinning tester at booth H3-B304, which spins recycled fibres sustainably and individually in a previously impossible fineness. In addition, there is digital yarn monitoring, which enables new market potentials. Get an idea of the Recycling Atelier of ITA Augsburg at booth H3-A207 and see the textile cycle from used textile to solution steps for industrial implementation together with industry partners. Join us on the Walk4Recycling and follow the path from used textile to a new knitted pullover on a tour of the trade fair. This is how we live up to our claim as the ITA Group: sustainable - digital - individual."

ITA Aachen - Digital ring spinning tester for recycled fibres enables spinning of fine yarns with high recycled fibres content
The Institut für Textiltechnik of RWTH Aachen University (ITA) will be exhibiting a digital ring spinning tester, which spins recycled fibres directly and conventionally with a particularly high content of 60-70 percent. Up to now, recycled yarns have mainly been rotor-spun in this blend ratio. This results in rather coarse yarns and is not suitable for finer textiles such as outerwear. Ring spinning of recycled yarns now enables the spinning of finer yarns and thus a higher application level for recycled materials.

A unique selling point of the ITA ring spinning tester is the simultaneous spinning in the direct spinning process from the sliver and in the classic ring spinning process. For this purpose, the strength and elongation of the spun yarn are determined online and digitally for the first time. The real-time measurement allows process parameters and yarn properties to be adjusted iteratively and quickly. The ring spinning tester was upgraded from an existing tester to Industry 4.0 standard and is operated via a tablet. Operation via tablet enables the adjustment of process parameters including online quality monitoring remotely from anywhere in the world.
 
For this purpose, the ring spinning tester is also able to produce fine ring spun yarns. These yarns made from recycled material opens up a multitude of further fields of application for woven and knitted goods. Now, for example, clothing and technical textiles can be made from recycled material, the production of which was not possible before - such as outerwear made from recycled material. The development of new industries and fields of application opens up new market potential for recycled yarns - also and especially for processing in Europe. This creates the opportunity to preserve key technologies and jobs in cost-intensive locations.

ITA Augsburg - Recycling Atelier: Walk4Recycling
The Recycling Atelier of the Institut für Textiltechnik Augsburg gGmbH on stand H3-A207 presents the textile recycling from used textiles into new products via the various process steps and, together with the industrial partners, opens up solution paths for industrial implementation.

Under the headline "Walk4Recycling", a tour of the fair shows the cycle of used textiles from used knitwear into a new knitted pullover via a ring yarn made from a blend of 65 percent recycled cotton and 35 percent virgin polyester. The key innovation here is the high proportion of recycled fibres from post-consumer textiles for a ring yarn of this fineness. Today, mainly coarse rotor yarns for low-quality textiles are spun from these materials. The industrial partners participating in the Walk4Recycling are partners of the Recycling Atelier and contribute with their technologies to the fact that fibre material from old clothes can be processed in various process stages into a yarn of new value and high-quality ready-made garments.

The Walk4Recycling offers visitors the opportunity to experience a complete recycling cycle with the numerous process stages from tearing the old textiles, preparing and spinning the fibres and knitting a new jumper live during the fair. Get detailed information on the mechanical recycling of clothing via QR code, website and flyer about the participating exhibitors and their machines and technologies. A short movie will give you additional insights into the various processes involved in the production of the jumper.

Winding unit for the continuous production of fibre-reinforced thermoplastic pipe profiles (c) ITA. Winding unit for the continuous production of fibre-reinforced thermoplastic pipe profiles
30.03.2023

Composites made by ITA at JEC World 2023

  • Less C02 emissions + sustainable + recyclable

Sustainability first - this is the principle of the Institut für Textiltechnik (ITA) of RWTH Aachen University at JEC World 2023. ITA combines various lightweight construction technologies to reduce C02 and to use renewable and/or recyclable raw materials.

ITA presents innovations in the production of reinforcing fibres and in the textile processing of high-modulus fibres. It also shows the impregnation of high-modulus fibres with thermosetting and thermoplastic matrix systems.  

ITA will be exhibiting in hall 6 together with Textechno, Mönchengladbach, Germany, textile testing equipment and Maruhachi Fukui, Japan, Thermoplastic Composite Material Systems. The Interreg AACOMA project will also be presented at the stand. 

  • Less C02 emissions + sustainable + recyclable

Sustainability first - this is the principle of the Institut für Textiltechnik (ITA) of RWTH Aachen University at JEC World 2023. ITA combines various lightweight construction technologies to reduce C02 and to use renewable and/or recyclable raw materials.

ITA presents innovations in the production of reinforcing fibres and in the textile processing of high-modulus fibres. It also shows the impregnation of high-modulus fibres with thermosetting and thermoplastic matrix systems.  

ITA will be exhibiting in hall 6 together with Textechno, Mönchengladbach, Germany, textile testing equipment and Maruhachi Fukui, Japan, Thermoplastic Composite Material Systems. The Interreg AACOMA project will also be presented at the stand. 

Source:

ITA Institut für Textiltechnik of RWTH Aachen

ITA
04.05.2021

2021 Aachen Reinforced! Symposium free of charge for all attendees

Institut für Textiltechnik of RWTH Aachen University has changed the format of the 2021 Aachen Reinforced! Symposium to an online only format. The programme was shortened to suit the new format, with presentations taking place on Monday 10th May and Tuesday 11th May.

Institut für Textiltechnik of RWTH Aachen University has changed the format of the 2021 Aachen Reinforced! Symposium to an online only format. The programme was shortened to suit the new format, with presentations taking place on Monday 10th May and Tuesday 11th May.

The conference program for Monday, 10th May:
The programme will begin with exciting presentations on glass chemistry and fibres. A talk by Dr Anne Berthereau (Owens Corning Composites) on the race for always higher modulus glass fibres will be followed by a talk from Dr Hong Li (Nippon Electric Glass) on the potential of new high-strength and high-modulus glass fibres.
After two further presentations on high modulus and bioactive glass fibres from Muawia Dafir and Julia Eichhorn (TU Bergakademie Freiberg), we will learn about furnace efficiency as well as process monitoring and digitalisation in glass fibre production from René Meulemann (CelSian), Hans Gedon (Gedonsoft) and Julius Golovatchev (Incotelogy) respectively.
A presentation by Felix Quintero Martínez (Universidade de Vigo) will explore a novel method to produce ultra-flexible glass nanofibers.
The afternoon will continue with two presentations by Dr Christina Scheffler (Leibniz-Institut für Polymerforschung Dresden e.V. (IPF)) and Professor James Thomason (University of Strathclyde) in the field of glass fibre sizings and fibre-matrix interfaces. Finally, a closing presentation by Steve Bassetti (Michelman) will conclude the first day of the Symposium.

The entire conference programme is available on the website https://aachen-fibres.com/aachen-reinforced/general-information.
To register for the Symposium, use the following link: https://aachen-fibres.com/aachen-reinforced/registration