From the Sector

The Paris 2024 Summer Olympic Games are just around the corner and a global sports frenzy is underway. However, intense summer workouts often lead to sportswear absorbing excessive sweat, becoming clingy and cumbersome, causing discomfort and potentially impacting performance. A research team from the School of Fashion and Textiles at The Hong Kong Polytechnic University (PolyU) has developed the iActive™ sportswear range which features a root-like liquid transport system and a skin-like active perspiration dissipater and utilises nature-inspired, anti-heat textile fabrics to expedite sweat removal, effectively reducing the weight and stickiness of activewear caused by sweat accumulation during exercise.

The human body has millions of sweat glands that are vital for regulating body temperature by dissipating sweat for evaporation to cool the skin’s surface. With unabating greenhouse gas emissions, the number of very hot days annually is expected to increase significantly. This will lead to elevated energy consumption and increased sweating during physical activity and outdoor labour. Even when wearing highly breathable clothes with good sweat-wicking properties, individuals may still experience discomfort due to excessive sweat accumulation.

A research team led by Dr SHOU Dahua, Limin Endowed Young Scholar in Advanced Textiles Technologies and Associate Professor of the School of Fashion and Textiles at PolyU, has invented the iActive™, intelligent, electrically activated sportswear with a nature-inspired active perspiration function.

Its nature-inspired technologies, including low-voltage-driven artificial “sweat glands” created by skin-like anti-heat textile fabrics and a root-like branching liquid transport system that aligns with the body’s sweat map, can actively and programmably remove sweat to a perspiration dissipater at the lower region of the sportswear. The all-textile sweat dissipater is compact and operates at a safe output voltage of approximately 5-9V, and its battery is easy to detach from the clothing, making it convenient for users to repeatedly wash the clothing by hand or in a washing machine to maintain hygiene. When the human body’s sweat rate is low, iActive™ can still be used independently without the battery.

Based on the optimised wettability pattern and gradient, the research team utilises a skin-like textile fabric to transport sweat one-way quickly and dissipate it from the inside to the outside. This feature reduces the stickiness and weight of clothing, improves breathability and ensures the garments remain dry and comfortable to wear. Experimental findings indicate that iActive™ creates a breathable and dry skin microclimate by dissipating sweat at a rate that is three times faster than the maximum human sweating rate. This innovation can also prevent discomfort from coldness and moisture after a workout. In comparison to traditional fabrics, the textile materials in iActive™ are 60% lighter and 50% less clingy when soaked, providing the wearer with all-round comfort and enabling sports enthusiasts and athletes to perform at their best.

Furthermore, a mobile app further aids personalised sweat management by wirelessly adjusting the sweat level of iActive™. This innovation is versatile and can be seamlessly integrated into a variety of textile materials to facilitate sustainable mass production. Beyond sportswear, iActive™ is also well-suited to protective clothing and workwear for individuals engaged in prolonged, high-intensity physical labour and outdoor occupations, including healthcare professionals, construction workers, firefighters, law enforcement officers and others, thereby significantly enhancing their work performance.

Dr Shou Dahua stated, “The extreme weather and high temperatures resulting from global warming have elevated the importance of heatstroke prevention and cooling measures on a global scale. Drawing on the vivid phenomena of thermal insulation and directed liquid flow in nature, we aim to foster innovation and sustainable advancement in garment manufacturing by inventing intelligent clothing and materials to address global challenges. We seek to harness the power of technology to infuse fresh perspectives into the traditional clothing industry, thereby enhancing its competitiveness.”

His research team has also developed a premium fabric named Omni-Cool-Dry™, drawing inspiration from volcano dwelling beetles. This fabric not only provides ultra-fast sweat dissipation and ensures all-day comfort with its dry and breathable features under dynamic thermal conditions, but also reflects solar radiation and emits body heat into the cold universe, enabling passive cooling. The team is working hard to leverage the benefits of both inventions to further enhance the sweat-dissipating and cooling capability of iActive™ sportswear.

Dr Shou Dahua, a core member of the PolyU Research Institute for Intelligent Wearable Systems and the Research Centre of Textiles for Future Fashion, has recently been bestowed with the 2023 Distinguished Achievement Award by The Fiber Society for his outstanding contributions to the fields of personal thermal and moisture management, intelligent wearables and soft robotics. The accolade is presented annually to an individual researcher worldwide. He has also received international innovation awards, including consecutive TechConnect Global Innovation Awards in 2021 and 2022. Moreover, his research papers have been published in various internationally renowned academic journals including Science Advances, PNAS, Advanced Functional Materials, and Advanced Energy Materials. Dr Shou will be chairing The Fiber Society Spring 2025 Conference at PolyU.

From athleisure to fashion, via underwear, from sarongs to bodysuits, through evening and bridal gowns, up to the world of denim and high fashion, Iluna's lace continues to expand its applications, confirming its versatility, performance and beauty. Trends run and pass quickly, but Iluna lace remains a certainty in all its forms, variations and colors. Since 2017 Iluna has been using only sustainable and certified ROICA™ stretch yarns from the ROICA Eco-Smart™ family, while the percentage of sustainable references has risen from 3% in 2018 to 52% in 2021.
There are four main proposals presented by Iluna Group during Première Vision ( 8-10 February 2022) :

• Flock in flounce or allover entirely made with recycled ingredients and equipped with endless printing possibilities, with 3D and multicolor effects that allow the inclusion in fashion, underwear and athleisure looks. All certified GRS (Global Recycled Standard).
• Continued investment in both the Green Label and Bioline, two collections totally dedicated to innovative and responsible aesthetics. Both include lace made with the responsible 6.6 polyamide yarn Amni Soul Eco® and the degradable stretch fiber ROICA™ V550, combined with natural vegetable dyes with OEKO TEX and GOTS certifications.
• The union of a chenille yarn blended with FSC-certified viscose and Renycle® yarn, a product obtained by recycling nylon 6, a high-value material with excellent strength, dyeing, softness and versatility, gives life to surprising new Textronic. The embossed designs with 3D effect create a cloud effect that, combined with Lurex, gives unexpected glows.
• GRS-certified tulles printed with GREENDROP technology, the new GOTS-certified digital pigment printing system, with lower energy consumption and low water waste, thanks to an internal closed-circuit process for water recycling.

• Based on high-tech finishing, responsible materials and certified partnerships
• With multicolored flock, zero water printing, chenille and metallic effects, the company is at the forefront in establishing a responsible lace supply chain

Legend has it that a sailor brought his beloved a seaweed from distant seas as a gift. The woman, wanting to preserve its beauty, replicated the design and holes with needle and thread. And so lace was born. Since that moment, lace has lived within the walls of churches and castles, visited race tracks and catwalks, changing shape and color according to seasons and times.

Among the companies involved in writing a new chapter in the history of lace, Iluna Group definitely stands out. Founded in 1970 from an idea of its founder Luigi Annovazzi, over the years Iluna has responded to the challenges posed by the market in terms of technology and sustainability.

Since 2017 Iluna has been using only sustainable and certified ROICA™ stretch yarns from the ROICA Eco-Smart™ family, while the percentage of sustainable references has risen from 3% in 2018 to 52% in 2021.

There are four main proposals presented by Iluna Group during Milano Unica:

• Flock in flounce or allover entirely made with recycled ingredients and equipped with endless printing possibilities, with 3D and multicolor effects that allow the inclusion in fashion, underwear and athleisure looks. All certified GRS (Global Recycled Standard).
   
• Continued investment in both the Green Label and Bioline, two collections totally dedicated to innovative and responsible aesthetics. Both include lace made with the responsible 6.6 polyamide yarn Amni Soul Eco® and the degradable stretch fiber ROICA™ V550, combined with natural vegetable dyes with OEKO TEX and GOTS certifications.
   
• The union of a chenille yarn blended with FSC-certified viscose and Renycle® yarn, a product obtained by recycling nylon 6, a high-value material with excellent strength, dyeing, softness and versatility, gives life to surprising new Textronic. The embossed designs with 3D effect create a cloud effect that, combined with Lurex, gives unexpected glows.
   
• GRS-certified tulles printed with GREENDROP technology, the new GOTS-certified digital pigment printing system, with lower energy consumption and low water waste, thanks to an internal closed-circuit process for water recycling.

Huntsman Textile Effects has released the latest addition to the third generation of its revolutionary AVITERA® SE polyreactive dye range with the introduction of AVITERA® ROSE SE for brilliant bluish-red shades. The innovative new dye significantly outperforms the available dyeing technologies for cellulosic fibers and blends, delivering substantial water and energy savings, exceptional overall fastness, and reduced costs.

AVITERA® ROSE SE slashes the water and energy required for production by up to 50% thanks to its unique low-temperature and high-speed wash-off technology. It further delivers excellent right-first-time performance, with outstanding compatibility, levelling properties, and on-tone build-up. The cost-effective formulation reduces recipe costs for medium-dark shades while both minimizing processing costs and eliminating reprocessing. It also increases mill output by up to 25% or more.

Using AVITERA® ROSE SE, brands can stand out with brilliant bluish-red textile products in a broader shade gamut. The dyes offer very good light fastness levels for classic bluish trichromatic element, with exceptional overall fastness performance. Products dyed with AVITERA® ROSE SE have the highest chlorine resistance, tailormade for stringent Japanese and US laundering requirements, and are suitable for use with Huntsman’s HIGH IQ® Lasting Color Eco color-retention program. With minimal chance of cross-staining, they are ideal for red-white striped cotton knit fabric.

AVITERA® ROSE SE is fully compliant with the most stringent industry and brand-specific restricted substance lists. It is bluesign® approved and is suitable for STANDARD 100 by OEKO-TEX® certified textile products.

Launched by Huntsman Textile Effects in 2010, the first-generation AVITERA® SE dyes set the benchmark for sustainability in the textile industry. The second generation expanded the range’s color palette from the palest to the deepest and darkest shades. The third generation further enhances the economic sustainability of the AVITERA® range while delivering unrivalled environmental benefits, outstanding operational performance, and attractive textiles with exceptional overall fastness.

With its resource-saving dyeing technology, We aRe SpinDye takes place in H&M's latest Innovation Stories collection called Co-exist.

The use of We aRe SpinDye's technology contributes to reducing both water consumption and CO2 emissions, which in turn leads to a lower impact on the world's ecosystem and creates conditions for our co-existence with nature.

Up to 24% of a garment's entire climate footprint occurs during dyeing. We aRe SpinDye's technology can reduce the consumption of the earth's resources in textile production. On average, the reduction of water is -75%, chemicals -90% and energy consumption and CO2 emissions -30%.

In just one year, the clothing industry uses 9 billion cubic meters of water (which is in line with the annual need for drinkingwater for the entire population of our planet) and 168 million tons of process chemicals to dye fabrics. We aRe SpinDye now hopes that more players in the industry will pay attention to the ways that are available when it comes to resource-efficient dyeing process and quickly implement this technology in their production.

"The enormous resource consumption in the dyeing process is a global problem that must be addressed on a broad front. It is therefore inspiring to work with major brands with an organization that is sensitive to cutting-edge expertise and at the same time shows a willingness to work together to achieve common goals", says Andreas Andrén, CEO of We aRe SpinDye.