Lenzing unveils solution to prevent discoloration in heat-moulded cellulosic garments

Lenzing unveils solution to prevent discoloration in heat-moulded cellulosic garments

Lenzing’s proprietary innovation is the industry’s first solution to address the discoloration and yellowing of seamless and light-coloured garments made with cellulosic fibres due to high-temperature heating.

Lenzing Group, a leading global producer of wood-based specialty fibres, has introduced a new processing solution that mitigates the yellowing of garments and fabrics made with wood-based cellulosic fibres during high-temperature production processes. With an initial rollout that targets innerwear and subsequently outerwear and ready-to-wear garments, the solution is the first in the industry to address the technical challenge during the garment moulding process. Lenzing is also taking on next steps to explore other potential applications, such as in heat seal processes of garments, and seamless stitching processes that involve heat seal adhesive tapes and bonding machines to replace traditional sewing.

“Discoloration has long been a lingering issue for the industry,” said Rex Mok, Vice President-Fibre Technical Marketing and Development, Lenzing. “Through ongoing innovation and close collaboration with fabric mill partners, we have not only addressed a common technical challenge, but also enhanced sustainability in the value chain with the potential to increase usage of botanic fibres across innerwear and outdoor garments. The latest technological innovation also speaks to Lenzing’s efforts to improve and widen the application of cellulosic fibres, such as TENCEL Lyocell and Modal fibres, which are derived from sustainable wood sources and produced using environmentally responsible processes. This serves as part of our wider commitment to drive the sustainable development of the textile value chain.”

Enhanced product aesthetics will unleash design possibilities with sustainable cellulosic fibres

Discoloring and yellowing issues caused by high-temperature moulding have traditionally been inevitable during the garment production process. While chemicals could be used to minimize discoloring issues in synthetic fibres, this method does not work as effectively as it does in wood-based cellulosic fibres. With Lenzing’s proprietary solution, such challenge is mitigated, eliminating the bottleneck fabric mills experience during the production and dyeing of light-colored garments made of wood-based cellulosic fibres.

Leveraging the new innovation, Lenzing’s mill partners can now benefit from the adoption of a broader spectrum of colours and shades, bringing more diversified fabric and garment offerings to consumer brands. Given the diversified needs among different mill partners, Lenzing’s technical experts will work closely with fabric mills to provide a technical analysis of fibres and fabrics, recommendations, and on-going support through to the end-garment stage.

Li Wei, Product Development Manager, at Yelin said, “Our customers have been positive about the visible improvement of the yellowish issues in fabrics during the high temperature moulding process. Lenzing team’s processing solution and technical support have made our lives easier, allowing us to find the sweet spot for different combinations of fabrics and colours.”

Address industry needs, from innerwear to outdoor and other ready-to-wear garments

During the initial phase, the proprietary technology will be used in the production of seamless lingerie and shapewear globally, with a proactive strategy to introduce the technology to outdoor apparel and other ready-to-wear garments thereafter. Waterproof garments, windbreakers, jackets and other weatherproof clothing that are produced using a stitch-free technique or heat seal bonding will also benefit from the increased colour and design possibilities.

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