From the Sector

As part of a broader initiative to reduce environmental impacts and keep ahead of evolving global chemical regulations, Active Apparel Group (AAG), manufacturer of performance apparel for the leisure/lifestyle and active market, is embracing water-based OEKO-TEX 100 Class 1 Standard Printing Inks in their manufacturing process.

Common and inexpensive inks used in the global manufacture of apparel contain a wide range of toxic chemicals, including phthalates, petroleum-based co-solvents, PVC, and other volatile organic compounds. AAG’s initiative to use OEKO-TEX approved, water-based inks creates benefits for factory workers, people living local to these factories, consumers, and everyone downstream.

AAG offers a range of printing methods to address a variety of customer needs, including:  digital printing, screen printing, and heat transfers for on-garment logos and care instructions. OEKO-TEX certified water-based inks are used for all of its digital printing and for the majority of its screen printing. These non-toxic water-based inks offer a socially and environmentally better alternative to the more commonly used Plastisol inks.

Making a sizable environmental impact, the printing service of AAG’s business is significant. Digital printing averages 25,000 meters per month with screen printing averaging 60,000 garments per month.

The use of water-based inks requires a skilled production team and training of employees is ongoing. AAG currently employs 30 people at its printing operations in Ningbo, China.

With the aim to help the denim industry reduce the environmental impact of its wastewater and move towards circularity, Archroma, G-Star RAW and Advance Denim have renewed their joint commitment to the production of aniline-free denim apparel based on Archroma’s DENISOL® PURE INDIGO 30.

Their joint aim is to produce high-quality denim in authentic blue shades without the aniline impurity carried through from the synthesis of standard synthetic indigo. In traditional denim production, this aniline remains bound with the indigo pigment on the fabric; the remaining aniline is discharged during the dyeing and washing process. This can be a problem because aniline is toxic to aquatic life and two-thirds of aniline waste currently ends up in wastewater discharge where it could potentially pollute waterways and the ocean.

Archroma developed DENISOL® PURE INDIGO 30 to answer this key challenge. A 30% pre-reduced indigo solution, DENISOL® PURE INDIGO 30 makes it possible to produce indigo-dyed denim without aniline impurities throughout the process.

Easy to use with automated dosing, DENISOL® PURE INDIGO 30 reduces the water needed for preparation, washing and wastewater treatment compared to indigo grains. It also reduces hazardous chemical consumption while allowing high reproducibility and creating the authentic and iconic deep indigo shades traditionally associated with denim.

G-Star RAW is working towards making 20% of its entire collection from Cradle to Cradle Certified® fabrics by 2025. Its partnership with Archroma and Advance Denim contributes to this goal, since the aniline-free DENISOL® holds a Gold Level Material Health Certificate from the Cradle to Cradle Products Innovation Institute. DENISOL® PURE INDIGO 30 is also compliant with other eco-standards and the requirements of leading retailers and brands.

Advance Denim, G-Star RAW and Archroma have previously collaborated to launch collections based on Archroma’s EarthColors® technology, which upcycles plant waste from the herbal industry to create sustainable colorways.

Archroma has developed a new wet-fastness improver that helps brands and mills produce durable clothing, towels, linens and other textile products with long-lasting colors without compromising on quality or introducing hazardous chemicals.

ALBAFIX® ECO PLUS is a next-generation fixing agent that delivers a strong wet-fastness for all reactive dyes on cotton and other cellulosic fibers and polyester-cotton blends. It will not change the shade of the dyed fabric or negatively impact light-fastness. The product also avoids production challenges – such as foaming, acid hydrolysis and migration problems during drying – to promote efficiency and quality output.

ALBAFIX® ECO PLUS is suitable for jet applications, and for other dyeing and washing equipment with vigorous liquor circulation, and can also be applied by exhaustion, by padding or from the last bath of the soaping process after dyeing or printing.

Like ALBAFIX® ECO, the latest addition to the ALBAFIX® family has a positive influence on chlorine-fastness. When applied with double fixing, it achieves the same high performance on polyamide and PA/Elastane fabrics, as it does on cellulosic fibers. This makes it ideal for the production of swimwear, as well as sportswear and outdoor clothing.

ALBAFIX® ECO PLUS complies with global eco-standards and initiatives, including Global Organic Textile Standard (GOTS), bluesign® and the Zero Discharge of Hazardous Chemicals (ZDHC) Roadmap.

Archroma and Browzwear, a company of 3D digital solutions for the fashion industry, have expanded their partnership to bring the complete Color Atlas by Archroma® library of colors to Browzwear’s VSticher, Lotta and Stylezone platforms.

Designers will now have access to a total of 5,760 color references, with 1,440 colors for polyester added to Browzwear’s existing color library of 4,320 Color Atlas colors for cotton poplin. This will support them to collaborate across the entire supply chain, ensuring color consistency from digital design to production for cotton, polyester and blends.

Crucially, the color references in the Color Atlas by Archroma® have been formulated to comply with leading international eco-standards, allowing designers to select dyes and finishes that meet their desired sustainability profile. Each color is available as a physical color standard that includes precise dyeing recipes and compliance data, as well as access to expert technical support from Archroma around the world.

Archroma Textile Effects expands the digital textile design and production system (CAD/CAM) Pointcarre with its entire portfolio of 5,760 colors.

Pointcarre Textile Software enables fashion, home furnishing and technical textiles designers to create accurate digital samples, streamline the fabric weaving, knitting and printing processes, and produce realistic presentations of their collections.

Incorporating the Archroma color portfolio into this workflow will allow designers to bring their ideas to life with greater speed and accuracy. They will not only have access to a vast searchable library of Archroma colors, but they will also be better able to produce the exact color they need at the factory.

All of the Archroma color references can be formulated with dyes that meet leading international eco-standards and the brand customer’s desired sustainability profile.

To support customers to optimize the potential of the new color library, Pointcarre is offering new interactive e-learning modules on its Academy training platform, as well as assistance in several languages.

Many end-users now expect recycled materials to be in textile products they purchase – and this is driving innovation throughout the industry. However, there are still many technical and economic issues facing yarn and fabric producers using recycled resources. Members of the Swiss Textile Machinery Association offer some effective solutions to these challenges.

Synthetic recycled materials such as PET can usually be treated similarly to new yarn, but there are additional complexities where natural fibres like wool and cotton are involved. Today, there’s a trend towards mechanically recycled wool and cotton fibres.

Spinning recycled cotton
The use of mechanically recycled fibres in spinning brings specific quality considerations: they have higher levels of short fibres and neps – and may often be colored, particularly if post-consumer material is used. It’s also true that recycled yarns have limitations in terms of fineness. The Uster Statistics 2023 edition features an extended range of fibre data, supporting sustainability goals, including benchmarks for blends of virgin and recycled cotton.
In general, short fibres such as those in recycled material can easily be handled by rotor spinning machines. For ring spinning, the shorter the fibres, the more difficult it is to guide them through the drafting zone to integrate them into the yarn body. Still, for wider yarn counts and higher yarn quality, the focus is now shifting to ring spinning. The presence of short fibres is a challenge, but Rieter offers solutions to address this issue.

Knitting recycled wool
For recycling, wool fibres undergo mechanical procedures such as shredding, cutting, and re-spinning, influencing the quality and characteristics of the resulting yarn. These operations remove the natural scales and variations in fibre length of the wool, causing a decrease in the overall strength and durability of the recycled yarn. This makes the yarn more prone to breakage, especially under the tension exerted during knitting.

Adapting to process recycled materials often requires adjustments to existing machinery. Knitting machines must be equipped with positive yarn suppliers to control fibre tension. Steiger engages in continuous testing of new yarns on the market, to check their suitability for processing on knitting machines. For satisfactory quality, the challenges intensify, with natural yarns requiring careful consideration and adaptation in the knitting processes.

From fibres to nonwovens
Nonwovens technology was born partly from the idea of recycling to reduce manufacturing costs and to process textile waste and previously unusable materials into fabric structures. Nonwovens production lines, where fibre webs are bonded mechanically, thermally or chemically, can easily process almost all mechanically and chemically recycled fibres.

Autefa Solutions offers nonwovens lines from a single source, enabling products such as liners, wipes, wadding and insulation to be produced in a true closed loop. Fibres are often used up to four times for one product.

Recycling: total strategy
Great services, technology and machines from members of Swiss Textile Machinery support the efforts of the circular economy to process recycled fibres. The machines incorporate the know-how of several decades, with the innovative power and quality standards in production and materials.
Stäubli’s global ESG (environmental, social & governance) strategy defines KPIs in the context of energy consumption, machine longevity and the recycling capacity in production units worldwide, as well in terms of machinery recyclability. The machine recyclability of automatic drawing in machines, weaving systems and jacquard machines ranges from 96 to 99%.

A major capacity expansion has been completed at AkzoNobel’s Powder Coatings site in Como, Italy, which will help secure supply to customers across Europe, Middle East and Africa (EMEA).

Four new manufacturing lines are now operational following the €21 million project – two of them dedicated to automotive primers and two to architectural coatings. New bonding equipment lines have also been added, ensuring that the products meet and exceed industry standards.

The extra capacity in Como has been installed in a renovated building where powder coatings were originally made – a sustainable reuse of an existing part of the site, which was established in 1992. The new lines also use recycled energy and are focused on meeting the highest standards in sustainable production, supporting the company’s ambition to reduce its carbon emissions by 50% by 2030.

AkzoNobel’s Como site is the company’s largest plant for producing powder coatings. It supplies products for market segments, such as home appliances, architecture, automotive, furniture and more.

The Aachen-based start-up SA-Dynamics is developing sustainable, bio-based and biodegradable insulation materials made from aerogel fibres, thereby setting new standards in resource-saving construction. Dr Sascha Schriever (Institut für Textiltechnik ITA), Maximilian Mohr (ITA), Dr Jens Hofer (ITA Postdoc) and Dr Christian Schwotzer (Department for Industrial Furnaces and Heat Engineering IOB), who trained at RWTH Aachen University, were awarded first place in the KUER.NRW Business Plan Competition 2023 and prize money of €6,000.

SA-Dynamics relies on the impressive properties of aerogel fibres: they have excellent insulating properties, are lightweight, durable, robust, versatile and can be processed very well on conventional textile machines thanks to their flexibility. This makes them comparable to polystyrene, but still sustainable, as SA Dynamics uses bio-based and biodegradable raw materials.

"We can revolutionise the construction world with bio-based aerogel fibres," explains ITA founder Dr Sascha Schriever proudly. "If all insulation materials in construction are converted to bio-based aerogel fibres, all builders can realise their dream of a sustainable house."

SA Dynamics has come a good deal closer to its founding goal by winning the KUER.NRW 2023 business plan competition. The spin-off from Institut für Textiltechnik (ITA) and Department for Industrial Furnaces and Heat Engineering (IOB) at RWTH Aachen University is scheduled for spring 2025.

Archroma proudly announced the continuation of its longstanding partnership with SANITIZED AG, marking collaborative success in the textile industry. This enduring alliance has been a cornerstone in driving innovation and setting industry standards, particularly for odor and hygiene management within the home textiles and apparel industry.

Archroma, one of the best chemical suppliers in the markets, further solidifies its position through the acquisition of Huntsman’s Textile Effects division in February 2023.

The acquisition enabled Archroma to broaden its global reach and technical expertise. Paired with our strong expertise in freshness additives, we enhance our marketing teams for joint communication, enhance the salesforce in the regions and strengthen our innovation force to drive the industry towards more sustainable solutions,” says Michael Lüthi, CEO of SANITIZED AG.

With a focus on strategic development, Archroma and SANITIZED AG aim to reinforce mills and brands in elevating their products by adding the value of freshness to their products and providing high-quality effects. This collaboration offers customers a flexible package, completed with application support through technical service and expertise, along with access to a strong product portfolio. Notably, the partners are ready to lead market trends and transformations, particularly in freshness finishes, ensuring their collective success in the dynamic landscape.

SHIMA SEIKI ITALIA S.p.A., Italian subsidiary of leading Japanese computerized knitting solutions provider SHIMA SEIKI MFG., LTD., will exhibit at the 94th edition of the Pitti Immagine Filati exhibition in Florence, Italy (24th-26th January 2024). It will exhibit as part of the CustomEasy section, which involves the concept of Fashion at Work and explores customization in the presence of textile machinery and design software, represented in part by SHIMA SEIKI's lineup of WHOLEGARMENT® knitting machines and APEXFiz® design software.

The new SWG-XR® flagship machine features 4 needle beds for all-needle knitting of high quality WHOLEGARMENT® products using the company's original SlideNeedle™, in addition to a re-designed sinker system and a compact, light-weight carriage featuring 4 systems as well as auto yarn carriers. All contribute to increased productivity of more than 25% over the previous MACH2®XS machine, as well as increased product range using a wider variety of yarn for supporting knits for all seasons, and higher quality for knitting beautiful fabrics and silhouettes; even items that were impossible to knit with the MACH2® series, including punch-lace patterns, variable stitch knitting and intarsia knitting. Setting new standards for the next generation of waste-free, sustainable WHOLEGARMENT® knitting, SWG-XR® at Pitti Filati will be shown in 15L and 18L as well as a prototype machine in 22L.

APEXFiz® subscription-based design software supports the creative side of fashion from planning and design to colorway evaluation, realistic fabric simulation and 3D virtual sampling. Virtual samples are a digitized version of sample making that are accurate enough to be used effectively as prototypes. By replacing physical samples, virtual samples reduce time, cost and material that otherwise go to waste.

The product planning capability of APEXFiz® is enhanced by several web services featured as part of the SHIMA SEIKI Online Services (SHIMA online) web platform. These include SHIMA Datamall™ digital content web service that allows users to search, browse and purchase a variety of useful data for streamlining the planning and production of fashion items, as well as the recently renewed yarnbank® digital yarn sourcing web service that offers digitized yarn data by yarn companies from around the world for download and use in virtual sampling. SHIMANAVI® e-learning system is also part of the online platform.