From the Sector

The Mechanical Engineering Industry Association (VDMA) has awarded two prizes to graduates of the Institut für Textiltechnik (ITA) of RWTH Aachen University - the dissertation prize and the creativity prize of the Walter Reiners Foundation of German Textile Machinery 2018. ITA alumnus Dr Benjamin Weise was awarded the dissertation prize for the development of novel fibres for textile charge storage devices. For their work on a guide to 4D product design, Jan Merlin Abram and Aalon Tal (both ITA students) were honoured with the creativity prize. The dissertation prize is endowed with €5,000 whilst the creativity prize contains a one-year scholarship of €250 per month. Peter D. Dornier, President of the Walter Reiners Foundation and Chairman of the Management Board of Lindauer DORNIER, presented the awards on the 18 September 2018 at the 18th Textile Machinery Forum in the Digital Capability Center in Aachen, Germany.

Graphene revolutionizes all-in-one - supercaps, reduction of terahertz radiation and antistatics

In his dissertation "Development of graphene-modified multifilament yarns for the production of textile charge storage devices", laureate Dr Benjamin Weise developed novel fibres made of polyamide and graphene and further processed them into textile surfaces. The newly developed polyamide graphene fibres are featuring a multitude of advantages:

• Due to their high performance in the charge storage area, they are predestined for use in double-layer capacitors, so-called super capacitors, or supercaps in short. Compared to lithium-ion batteries, supercaps offer significantly higher power density and a longer lifetime as no chemical reactions are taking place. towing to the graphene platelets in the filaments, it is now possible for the first time to integrate a charge storage device directly into a textile without having to sew in a rechargeable battery. This new fibre is therefore suitable for prospective use in smart textiles, for instance in a textile defibrillator.
• The new graphene-modified polyamide fibres can attenuate inident terahertz radiation up to 25 % of their original intensity. Terahertz radiation, for example, offers transmission rates of 100 Mbit/sec and is therefore of high interest for high-performance wireless communication. However, the radiation could damage sensible electronics as in aircrafts if this technology will be used widespread. Consequently, the shielding of the radiation is of high importance, e.g. in the form of fibre composite components in the aircraft, which protect the on-board electronics.
• As the fibres are showcasing a dissipative electrical conductivity, personal protective equipment is another prospective field of application.  

The development of a pilot process for graphene-modified fibres and the production of textile demonstrators are novel and disruptive attainments of Dr Weise’s PhD thesis and the reason for the award ceremony to him. Due to its outstanding properties, the European Union is funding research on graphene within the frame of the "Graphene Flagship" with an overall budget of one billion Euro (source: http://graphene-flagship.eu/project/Pages/About-Graphene-Flagship.aspx).

Modular product design of 4D products is now possible in simplified form

How can three-dimensional products change their shape over time and thus become "four-dimensional"? The students Jan Merlin Abram and Aalon Tal provide answers to this question in their project work "Leitfaden zur Auslegung hybrider morphender Textilien am Beispiel eines Scharniers" (Guidelines for the Design of Hybrid Morphing Textiles Using the Example of a Hinge), for which they were awarded the creativity prize. In their work, the students offer a guideline for the development of a four-dimensional textile from the idea to the demonstrator. Four-dimensional textiles, for example, consist of a hybrid material of elastic textile on which three-dimensional structures are printed. The fourth dimension describes the change in shape and/or a property over a defined period of time (= morphing).  This change is caused by external influences such as light and heat.

Every year, the Foundation of the German Textile Machinery awards prizes for the best dissertation, diploma or master's thesis and the creativity prize for the smartest student research project. Further prizes were awarded to Eric Otto, ITM Dresden, and Susanne Fischer, Reutlingen University.

India is a very important market for the German textile machinery industry, with an export of more than €255 million (+ 8 %) in 2017. Many German machinery builders have longstanding relations with Indian customers and quite a number of them also provide production plants and training centres in India. Not surprisingly, about 370 decision-makers and experts from the textile and nonwoven related industry attended the VDMA conference and B2B event called “German Technology meets Indian Textiles and Nonwovens” in Mumbai on 15-16 May 2018 (www.germantech-indiantextile.de).

According to a survey, both the event and German textile machinery engineering received the highest marks among the visitors. About 57 % of the visitors stated very good and 38 % good experience with machines and components from German suppliers. The performance and service promise as well as the high-quality standards have made German machine suppliers as most reliable partners in India and other countries. This positive result has by far not been reached by any other manufacturing nation from Europe or Asia. Asked for future processes, investments in technical textiles and/or nonwoven production seem to be the most favorite sectors in India. Around 74 % of the visitors plan to expand their production capacities with new machines and components whereas 26 % intend to replace old machinery by new machines and components. High productivity, after-sales service, end-product quality, low operating and acquisition costs are the decisive machine procurement criteria in this order. The investments plans are based on a positive business and investment outlook in India. 45 % of the visitors surveyed plan to invest more than 10 % within the next 12 months and 30 % up to 10 %. 25 % of the visitors expect a sales increase by more than 10 % for the next 12 months and 60 % anticipate a sales growth of up to 10%.

Considering this positive business climate and the high interest from the Indian industry, the 32 well-known VDMA members participated in the conference have good chances to offer the right technologies and to place new orders. The presented technology topics along the entire textile value chain will help the Indian industry to fulfill their expansion plans and to meet the challenges such as rising salary costs and shortage of labor in industrial regions. The major cutting-edge topics of the conference program were as follows:

•    Higher profits throughout the entire textile value chain
•    Energy, material, water and dyestuff savings for an environmentally friendly production
•    New applications such as technical textiles, nonwovens (e. g. hygiene products) or home textiles (e. g. terry towels)
•    Automation, industry 4.0, digital communication and smart factory solutions
•    Quality improvements e. g. with measurement and control systems
•    Lower investment costs in spinning preparation with integrated draw frames
•    New technologies to combine spinning and knitting
•    Smart textiles and added value products e. g. with embroidery machines

Whereas the event on 15-16 May 2018 focused on customers, a training session at the prestigious Veermata Jijabai Technological Institute VJTI in Mumbai on 17 May 2018 was addressed to future engineers. More than 220 textile manufacturing and mechanical engineering students followed the technical presentations. The VDMA's contribution to improve the education of future customers and partners was very much appreciated.