From the Sector

"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.

At ITMA 2023 in Milan from June 8-14, Fong’s Europe will introduce its latest THEN Synergy Airflow and THEN Airjetwin machines, which exploit the principle to provide high-quality, efficient and eco-friendly dyeing processes for a variety of fabrics.

“THEN introduced its first machines with Airflow technology in 1980 and since then we have had wide experience of pretreating and dyeing with Airflow transport systems on all kind of fabrics,” says Fong’s Europe Director of Sales and Marketing Richard Fander. “Our team of engineers has collected data on dyeing processes, results and consumption figures for years and constantly makes use of this accumulated know-how to optimise the processes of our customers.

“The THEN team understands Airflow dyeing processes and technology based on it guarantees the lowest liquor ratio on round shape machines. The transport of fabric by air reduces the liquor ratio compared to every kind of hydraulically driven transport system.”

He adds that while not every fabric can be dyed and treated on Airflow machines with the same handle and appearance as on hydraulic round shape or long shape machines, where it is applicable, it can lead to significant savings of up to 35% in water, 50% in salt, 20% in dyestuffs and 30% in process time.

The THEN Airflow dyeing machines have several features, including several parallel functions for reducing process time. The VPR system shortens the rinsing time and water usage and the robust and homogeneous spraying device in the nozzle ensures a uniform dyeing in the shortest process time. The very short liquor ratio also reduces the use of salt and chemicals.

At ITMA 2023 in Milan, Zünd is focusing on the advantages of digital single-ply cutting in modern garment production.

At the show, Zünd will demonstrate the advantages of individual cutting on demand and what benefits single-ply cutting of textiles offers. In the course of digitalization, the market environment of the apparel industry has changed. Producers are responding to increasing digitalization and ever-shorter product life cycles by investing in lean and highly automated production workflows. Solutions from Zünd supported process streamlining from ordering to cutting while minimizing manual interventions.

Zünd's single-ply cutters are the cutting tools in digitized production, offering manufacturers flexibility and profitability. Intelligent automation functions, optical solutions and software tools facilitate resource optimization, keep an eye on material consumption and support employees who can turn their attention to value-adding activities. With digital single-layer cutting, manufacturers speed up their cutting and expand their production capacities at the same time. They can accept orders at very short notice and easily meet delivery times thanks to highly economical and efficiently scalable on-demand production. Peaks in demand can be easily managed.

Zünd cutters give users new flexibility in their production workflow. He can work with complex motifs, demanding textiles and different shapes. The cutting technology enables the apparel industry to produce highly individualized customized garments in small batches and on demand just as economically and efficiently as in high volumes. It can process and handle more orders in less time. At the same time, both material and time are saved. In combination with the MindCut production software and precise single-layer cutting, there is almost no waste. The cut parts can be nested very close to each other and close to the material edges. This not only offers considerable savings potential, but also helps to reduce the ecological footprint.