From the Sector

The kick-off meeting for the "Trends and Design Factors for Hydrogen Pressure Vessels" project, recently held at AZL Aachen GmbH, was a successful event, bringing together more than 37 experts in the field of composite technologies. This event laid a solid foundation for the Joint Partner Project, which currently comprises a consortium of 20 renowned companies from across the composite pressure vessel value chain: Ascend Performance Materials, C evotec GmbH, Chongqing Polycomp International Corp. (CPIC), Conbility GmbH, Elkamet Kunststofftechnik GmbH, F.A. Kümpers GmbH & Co. KG, f loteks plastik sanayi ticaret a.s., Formosa Plastics Corporation, Heraeus Noblelight GmbH, Huntsman Advanced Materials, Kaneka Belgium NV, Laserline GmbH, Mitsui Chemicals Europe GmbH, Plastik Omnium, Rassini Europe GmbH, Robert Bosch GmbH, Swancor Holding Co. Ltd. Ltd., TECNALIA, Toyota Motor Europe NV/SA, Tünkers do Brasil Ltda.

The project follows AZL´s well proven approach of a Joint Partner Project, aiming to provide technology and market insights as well as benchmarking of different material and production setups in combination with connecting experts along the value chain.

The kick-off meeting not only served as a platform to foster new contacts and get informed about the expertise and interests of the consortium members in the field of hydrogen pressure vessels, but also laid the groundwork for steering the focus of the upc oming project's ambitious phases. As a basis for the interactive discussion session, AZL outlined the background, motivation and detailed work plan. The central issues of the dialogue were the primary objectives, the most pressing challenges, the contribut ion to competitiveness, and
the priorities that would best meet the expectations of the project partners.

Discussions covered regulatory issues, the evolving value chain and the supply and properties of key materials such as carbon and glass fibres and resins. The consortium defined investigations into different manufacturing technologies, assessing their matu rity and potential benefits. Design layouts, including liners, boss designs and winding patterns, were thoroughly considered, taking into account their implications for mobile and stationary storage. The group is also interested in cost effective testing m ethods and certification processes, as well as the prospects for recycling into continuous fibres and the use of sustainable materials. Insight was requested into future demand for hydrogen tanks, OEM needs and strategies, and technological developments to produce more economical tanks.

The meeting highlighted the importance of CAE designs for fibre patterns, software suitability and the application dependent use of thermoset and thermoplastic designs.

The first report meeting will also set the stage of the next project phase, which will be the creation of reference designs by AZL's engineering team. These designs will cover a range of pressure vessel configurations using a variety of materials and production concepts. The aim is to develop models that not only re flect current technological capabilities, but also provide deep insight into the cost analysis of different production technologies, their CO₂ footprint, recycling aspects and scalability.

AZL's project remains open to additional participants. Companies interested in joining this initiative are invited to contact Philipp Fröhlig.

It is exactly 100 years ago on August 17th this year that Carl Axel Gustafsson returned from the USA to Sweden with a significant agency agreement from the Boston-based sewing machine leader Reece.

Back in 1921, Reece, along with its competitor Singer, entirely dominated the buttonhole machine market and were the world’s only manufacturers of these machines for jackets, trousers and coats.

Gustafsson’s license enabled his new company A C Gustafsson to become one of Europe’s first leasing organisations, hiring out Reece buttonhole machines and receiving payment per sewn buttonhole stitch.

This business thrived for many decades and formed the basis for the entire ACG Group as it exists today.

Forty years later, on September 2nd 1961 to be precise, Reimar Westerlind walked out of a restaurant after a long and enjoyable lunch with someone he’d never met before, having signed his intention to buy a company he knew nothing about on an improvised contract written on the back of a menu.

“What I didn’t know then was that my dining partner was the family lawyer of Carl Axel Gustafsson,” Reimar explains. “I had no money and knew nothing about the textile industry and I also quickly discovered the business was not doing so well at that time and tried to get out of the agreement, but he insisted I honour it. He told me he had money and would back me, but I’d have to work hard and pay him back in full.”

Reimar certainly took that advice, and at the age of 92 still travels to his office every day to oversee the operations of the diverse companies now operating under the ACG umbrella.

Although textiles remain the bedrock of the business, under Reimar Westerlind’s management, ACG Group has branched out into many other fields of activity over the past 60 years, and its diversity has also led to some highly unexpected developments.

Like many other European manufacturers, ACG also began to expand beyond its traditional borders from the 1970s onwards – initially into the former Soviet Union and subsequently establishing subsidiaries in Estonia, Lithuania, Finland, the Ukraine and Denmark.

• Innovative textile Prozesse

Veränderungen sind gut: Innovationen in der textilen Verarbeitung führen zu mehr Effizienz in den Prozessabläufen. Diesem Themenkomplex widmet sich auf der Internationale Baumwolltagung in Bremen am Mittwoch, dem 21. März die Session  „Textile Processing“ und liefert ansprechende Beispiele dazu.

Nachhaltig
Michael Tuschak, Mayer & Cie., Deutschland informiert über das 3-in-1-Konzept von Spinitsystems. Spinnen, Reinigen und Stricken sind in einer Maschine zusammengefasst. So kann der Herstellungsprozess von hochwertiger Single-Jersey-Wirkware stark verkürzt werden, was Energiekosten einspart und den CO2-Ausstoß reduziert.

Indigo
Ein alter Farbstoff kommt zu neuen Ehren. Dr. Dean Etheridge von der Texas Tech University, USA spricht in seinem Vortrag über ein innovatives Indigo-Färbeverfahren von Baumwoll-garnen mit Hilfe von Schaum. Dies spart große Mengen an Wasser und wird inzwischen schon vermehrt von großen Marken in der Jeansfertigung genutzt.

Effizienz
Amin Leder, Trützschler Gmbh & Co. KG, Deutschland stellt eine Technik vor, in der der Streckprozess zur Rotorgarnherstellung nicht in einer abgetrennten Maschine erfolgt, sondern in die Kardierung integriert ist. Damit ist es möglich, auch Baumwolle mit höherem Abfallanteil effizient zu verarbeiten.

Überblick
Harald Schwippel, Rieter, Schweiz, stellt zusammenfassend alle vier wesentlichen Spinnereitechnologien für Baumwolle - Ring Spinning, Compact Spinning, Rotor Spinning und Air-Jet Spinning - vor. Sein Vortrag bietet einen Überblick über die Möglichkeiten, die jedes dieser Verfahren in seiner heutigen Entwicklungsstufe zur Herstellung unterschiedlicher Garne bietet und die effizientesten Optionen für verschiedene Einsatzzwecke.

Noch mehr Wissen
Im Vorfeld der Internationalen Baumwolltagung organisieren das Faserinstitut Bremen und die Baumwollbörse am Dienstag ein spezifisches Seminar für Spinnereien, in dem es um den effizienten Umgang mit Verunreinigungen in Baumwolle, von der Eliminierung in der Produktion bis hin zur Entfernung in der Spulerei geht.

Im Rahmen der Experten-Session wird am Freitagmorgen z.B. der Austausch von neusten Forschungsergebnissen auf dem Gebiet von Entkörnungsverfahren im Zusammenhang mit Baumwollqualität diskutiert sowie das Thema Nachweisbarkeit von GMO-freier Baumwolle. Journalisten sind hierzu herzlich eingeladen.