#Additive Manufacturing

2019-11-21

Effective shoe manufacturing with 3D printing

Shoes can be made from only two parts using 3D printing – the sole and the uppers. To produce both parts, Covestro has developed a thermoplastic polyurethane (TPU) so that the shoe can be completely recycled at the end of its useful life. (c) 2019 Covestro

The manufacture of a shoe requires a multitude of work steps, some of which are carried out by hand. This makes production time-consuming and expensive. In the finished product, various materials are sewn together and glued together, so that it is virtually impossible to recycle them by type at the end of their useful life.

Using 3D printing, shoes could be made from only two parts – upper and sole. Covestro has developed a material that enables automated production at lower cost and complete recyclability of the finished shoe. At the Formnext trade fair from 19 to 22 November 2019 in Frankfurt am Main, Germany, the company will be presenting these and other developments of its additive manufacturing programme at Booth E11 in Hall 12.1.

A powder and a filament, both based on thermoplastic polyurethane (TPU), proved to be the material of choice for meeting all the above requirements. The plastic offers high rebound and abrasion resistance and is therefore ideally suited for the production of both shoe parts.

In addition, the shoe can later be recycled in a single step, including the polyurethane adhesive used for production – an important milestone towards recycling. Old shoes are thus turned into filaments for new shoes.

Covestro and Heraeus Precious Metals collaborate to enable safer, more sustainable antimicrobial textile coatings

Laboratory tests reveal that AGXX antimicrobial surface technology from Heraeus Precious Metals is fully compatible with Impranil® PU dispersions which are part of the waterborne INSQIN® textile coating technology from Covestro, paving the way for more sustainable antimicrobial textile coatings. This discovery comes at a key moment for the textile coatings industry. As the sharing economy continues to grow, more people are coming into regular contact with high-use surfaces, creating ideal conditions for bacteria, viruses, and other microorganisms to thrive.

Covestro celebrates decade of innovation and sustainable growth

Covestro celebrates its 10-year anniversary today. Since its carve-out from Bayer in 2015, the company has developed into a global leader in high-performance polymer materials and a pioneer in circular economy solutions. With a strong focus on innovation and sustainability, Covestro’s materials are now embedded in countless applications worldwide – from mobility and construction to electronics, healthcare, and consumer goods.

Suiting up Team Sonnenwagen with more sustainable sportswear created through a three-way partnership

Team Sonnenwagen Aachen, a solar racing collective from RWTH Aachen and FH Aachen, Germany, is on a mission to advance sustainable mobility solutions and become world champions. This August, the student team will participate in the 2025 Bridgestone World Solar Challenge, a biannual 3,000-kilometer race across the Australian outback. During the five-day event, 50 student teams from around the world will compete with solar vehicles that they must design, assemble, and drive themselves.

T-CAN – Revolutionizing can transport

In virtually all spinning mills, transporting sliver cans is still done manually. Rising labor costs, lack of operators and increasing quality requirements make this a growing challenge. With T-CAN, Trützschler introduces a practical solution: a fully automated can transport system that will be presented live at ITMA ASIA 2025 in Singapore.

Francois Guetat joins Suominen as COO

Francois Guetat brings over two decades of global experience in operations, supply chain, and manufacturing excellence. Most recently, he served as SVP of Integrated Supply Chain at Kalmar, where he led business across sourcing, manufacturing, logistics and strategy. His leadership has been shaped by 22 years at Volvo, where he held key roles in Sweden, USA, and Poland.

DuPont™ Nomex® plant in Asturias receives ISCC PLUS certification

DuPont announced today that its Nomex® production facility in Tamón, Asturias, has received International Sustainability and Carbon Certification (ISCC PLUS) certification. This achievement underscores DuPont's commitment to advancing its sustainability goals and building capabilities to provide reliable Nomex® solutions from sustainable raw materials worldwide.

From concept to stage: Submit presentations for the Techtextil Forum and Texprocess Forum 2026 now

Anyone who wants to contribute to shaping the future of the textile industry can submit a presentation for the Techtextil and Texprocess Forum by 15 December 2025. Both stages represent innovation and practical solutions and promote exchange between research and industry. An international Programme Committee selects the contributions and curates a programme on key future topics in the textile sector. From 21 to 24 April 2026, the two leading trade fairs will once again be the centre of global business dialogue in Frankfurt.