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Celanese and Under Armour introduce elastane alternative (c) Celanese Corporation
24.01.2024

Celanese and Under Armour introduce elastane alternative

Celanese Corporation, a specialty materials and chemical company, and Under Armour, Inc., a company in athletic apparel and footwear, have collaborated to develop a new fiber for performance stretch fabrics called NEOLAST™. The innovative material will offer the apparel industry a high-performing alternative to elastane – an elastic fiber that gives apparel stretch, commonly called spandex. This new alternative could unlock the potential for end users to recycle performance stretch fabrics, a legacy aspect that has yet to be solved in the pursuit of circular manufacturing with respect to stretch fabrics.

NEOLAST™ fibers feature the powerful stretch, durability, comfort, and improved wicking expected from elite performance fabrics yet are also designed to begin addressing sustainability challenges associated with elastane, including recyclability. The fibers are produced using a proprietary solvent-free melt-extrusion process, eliminating potentially hazardous chemicals typically used to create stretch fabrics made with elastane.

Celanese Corporation, a specialty materials and chemical company, and Under Armour, Inc., a company in athletic apparel and footwear, have collaborated to develop a new fiber for performance stretch fabrics called NEOLAST™. The innovative material will offer the apparel industry a high-performing alternative to elastane – an elastic fiber that gives apparel stretch, commonly called spandex. This new alternative could unlock the potential for end users to recycle performance stretch fabrics, a legacy aspect that has yet to be solved in the pursuit of circular manufacturing with respect to stretch fabrics.

NEOLAST™ fibers feature the powerful stretch, durability, comfort, and improved wicking expected from elite performance fabrics yet are also designed to begin addressing sustainability challenges associated with elastane, including recyclability. The fibers are produced using a proprietary solvent-free melt-extrusion process, eliminating potentially hazardous chemicals typically used to create stretch fabrics made with elastane.

NEOLAST™ fibers will be produced using recyclable elastoester polymers. As end users transition to a more circular economy, Celanese and Under Armour are exploring the potential of the fibers to improve the compatibility of stretch fabrics with future recycling systems and infrastructure.

In addition to the sustainability benefits, the new NEOLAST™ fibers deliver increased production precision, allowing spinners to dial power-stretch levels up or down and engineer fibers to meet a broader array of fabric specifications.

Source:

Celanese Corporation

Photo: FET
FET-103 Monofilament meltspinning system
10.10.2022

RHEON LABS: Fibre with unique strain-rate sensitive characteristics

RHEON LABS, a fast-growing materials technology company based in Battersea, London, has completed an extensive 6 month trial with FET, a world leader in laboratory and pilot meltspinning equipment. Backed by a £173,000 grant from Innovate UK for feasibility studies, RHEON LABS has further developed its RHEON™ technology, a reactive polymer that dynamically stiffens when subjected to force. The technology can control energy of any amplitude or frequency, from small vibrations to forces at ballistic-speeds and therefore has a wide range of applications.
 
This Innovate UK Smart Grant-backed project aims to develop a hyper viscoelastic fibre from RHEON™ which displays high strain-rate sensitive properties. Creating a fibre with unique strain-rate sensitive properties will be a world first. It will enable the creation of a 'breakthrough-generation' of stretch textiles that can actively absorb, dampen and control energy during movement, rather than simply acting as a spring.

RHEON LABS, a fast-growing materials technology company based in Battersea, London, has completed an extensive 6 month trial with FET, a world leader in laboratory and pilot meltspinning equipment. Backed by a £173,000 grant from Innovate UK for feasibility studies, RHEON LABS has further developed its RHEON™ technology, a reactive polymer that dynamically stiffens when subjected to force. The technology can control energy of any amplitude or frequency, from small vibrations to forces at ballistic-speeds and therefore has a wide range of applications.
 
This Innovate UK Smart Grant-backed project aims to develop a hyper viscoelastic fibre from RHEON™ which displays high strain-rate sensitive properties. Creating a fibre with unique strain-rate sensitive properties will be a world first. It will enable the creation of a 'breakthrough-generation' of stretch textiles that can actively absorb, dampen and control energy during movement, rather than simply acting as a spring.

For close-fitting activewear and sports bras, the ability to actively control muscle mass or soft tissue movement during exercise will be a game-changing advancement. It will allow brands to engineer garments that relax during everyday use but actively stiffen during exercise for improved support and performance.
The Innovate UK grant was awarded under the category of Hyper-Viscoelastic Fibre Extrusion for Textile Manufacture. Fibre Extrusion Technology Limited (FET) enabled the customer trials at its bespoke Fibre Development Centre in Leeds, England using its in-house FET-103 Monofilament meltspinning facilities, in harness with RHEON and FET technical operatives. The next phase will be to upscale the trials of preferred materials on RHEON’s own new FET-103 meltspinning line, with FET’s continued support and expertise on hand.
 
Creating a fibre with unique strain-rate sensitive characteristics could be as radical a change in the market as the initial introduction of stretch fibre with the launch of Lycra™. The textiles would have a multitude of beneficial properties and would provide significantly less compression in the garment than conventional materials, substantially improving user comfort, support and performance.

Source:

DAVID STEAD PROJECT MARKETING LTD

03.08.2021

Asahi Kasei Spandex Europe GmbH will be discontinued by March 2022

  • "Optimizing the global strategy of its ROICA™ premium stretch fiber business"

Asahi Kasei Corporation markets premium stretch fiber (elastic polyurethane filament) under the brand of ROICA™ with superior performance features enabled by integrated production from raw material to finished yarn based on its advanced technology.

Asahi Kasei operates its global ROICA™ business having production sites in Japan, Thailand, Taiwan, China, and Germany with numerous sales offices around the world. Asahi Kasei has now decided to restructure and optimize its global strategy in order to further improve the business performance and level of sales services.

  • "Optimizing the global strategy of its ROICA™ premium stretch fiber business"

Asahi Kasei Corporation markets premium stretch fiber (elastic polyurethane filament) under the brand of ROICA™ with superior performance features enabled by integrated production from raw material to finished yarn based on its advanced technology.

Asahi Kasei operates its global ROICA™ business having production sites in Japan, Thailand, Taiwan, China, and Germany with numerous sales offices around the world. Asahi Kasei has now decided to restructure and optimize its global strategy in order to further improve the business performance and level of sales services.

As a part of this process, the production and sales of ROICA™ at its German subsidiary, Asahi Kasei Spandex Europe GmbH, will be discontinued by March 31, 2022.
Recognizing the importance of the European market as leading fashion market and in light of sustainable trends together with valued customers and supply chains, Asahi Kasei will continue sales, technical, and marketing services in Europe from Asahi Kasei Europe, the European regional headquarters of the Asahi Kasei Group, focusing on ROICA™ added value products manufactured at its global ROICA™ production sites.

More information:
Asahi Kasei stretch fibre ROICA™
Source:

Asahi KASEI