Presentation Abstracts INDEX™ Seminar

Please find below the abstracts of the presentations to be delivered during the INDEX™ Smart Nonwovens - High-performance Nonwovens seminar on 20 October 2021 in INDEX™ Lab, Room W (Hall 3) at 14:30 - 17:05.

14:30 - 14:35: Introduction
Adrian Wilson, Seminar Chair

Technical Textiles International magazine and Sustainable Nonwovens (UK)

Where have nonwovens producers recently successfully introduced niche products with high-performance capabilities? Which markets did they target and what new technologies and skills did they need to employ? A long-standing observer of the nonwovens and technical textiles industries, Adrian Wilson will offer his insights into markets which promise high returns to participants.

14:35 - 14:55: Opportunities for production of nonwoven bio-based electronics
Dr Hjalmar Granberg, Senior Scientist

RISE Research Institutes of Sweden

Bio-based Electronics is an emerging field of research and innovation where active functionalities are added to bio-based materials, such as wood cellulose. The current study focuses on methods that can be used to disperse and distribute active particles or polymers into nanocellulose filaments, nanocellulose films or directly into pulp-based paper sheets. Synergetic effects are discovered for certain material combinations, such as tailored mechanical properties with dedicated optical or electrical performance.

A novel water-based spinning method is used to create strong and stiff nanocellulose filaments filled with active components such as carbon nanotubes, PEDOT:PSS or titanium dioxide. The method also allows for single filaments having a sheath core structure, opening for a range of new devices and applications. A method similar to the spinning technique was applied to extrude and dry nanocellulose gels filled with active particles or polymers into films. Scaling challenges and possibilities will be discussed. Finally, the addition of active filaments or particles such as graphene or zinc oxide to papermaking will be considered. The versatility of the given methods will be exemplified with several demonstrators.

14:55 - 15:50: Innovation in Technical Nonwovens – Evolving USP
Marc Jolly, Head of Research & Development

Norafin Industries (Germany) GmbH (Germany)

Typically, the Technical Nonwovens market is rather conservative. Innovation and creativity nurtured by utilizing new technologies, processes and applied research allow Norafin to continuously add to our toolbox of unique selling points (USP). This presentation explains how Norafin approaches being a solution provider in both todays markets and future challenges as we see them.

15:15 - 15:35: How to design nonwoven metamaterial
Dr Amit Rawal, Professor

Department of Textile and Fibre Engineering
Indian Institute of Technology Delhi, India

Auxetic metamaterials exhibit a negative Poisson's ratio, and accordingly, these materials tend to expand in one of the transverse directions in response to stretching. Although the majority of the investigated metamaterials consist of periodic and well-ordered structures, non-periodic materials such as nonwovens have been rarely investigated. To address this challenge, we propose a non-periodic metamaterial in the form of an out-of-plane auxetic nonwoven that possesses a 3D interconnected highly porous structure with remarkable mechanical properties corresponding to conventional nonwoven material. Further, the merits of out-of-plane auxetic behavior have been manifested in terms of enhancement in porosity and thru-plane permeability characteristics. A design strategy of utilizing larger fiber diameters to enhance the porosity and permeability characteristics successfully devised the nonwoven material with an extraordinary out-of-plane auxetic effect. In situ tensile-X-ray microcomputed tomography (microCT) analysis has been carried out to monitor the variation in morphological characteristics.

15:35 - 15:55: Engineered superabsorbent nonwovens for durable and reusable applications
James Docherty, Product Development Specialist and Dr John Rose, Product Development Director

Photos to follow

Technical Absorbents Ltd, UK

Superabsorbents are usually associated with single-use disposable absorbent products. The race is on to offer more sustainable solutions aligned with growing consumer concerns for the environment. This webinar will focus on the development of fabrics that are not only superabsorbent but engineered to be more durable and reusable.

15:55 - 16:15: Dry powder impregnation solutions
Jérôme Ville, CEO

Fibroline SA (France)

Fibroline has developed a unique technology for impregnating nonwoven with dry powders allowing producers to create fabrics with a wide variety of functionalities for a range of technical applications. Chief Executive Officer (CEO) Jérôme Ville will describe the latest developments.

16:15 - 16:35: Adsorbent technology for high-performance nonwoven applications 
Dr Ross Ward, New Business Development Manager

Nonwovens Innovation & Research Institute Ltd (NIRI) (UK)

NIRI has developed a nonwoven adsorbent technology for selective filtration of atoms, molecules, compounds and particles from gaseous and liquid environments. The engineered nonwoven can be tailored depending upon the nature and volume of unwanted matter, specific application, carrier fluid and separation performance requirements. NIRI will detail case studies of how this technology can be adapted for different applications, including capturing SARS-CoV-2 on PPE to reduce the risk of viral transfer between staff and patients in a healthcare setting. The technology has the potential to enhance the performance of a broad range of nonwoven products and is currently being developed for multiple high-performance applications, such blood filtration, wound care, air filtration and waste water filtration.