From the Sector

Trumpler has teamed up with Archroma to offer a leather production process that can be used to produce high-performance leather in a more eco-friendly and cost-efficient way.

The new process DyTan®combines offers an alternative to existing metal-free and chrome-tanned leather. It enables the reliable production of leather with great shavability, color depth and migration and abrasion resistance. Free from metal salts and reactive aldehydes, DyTan® is suitable for a wide range of leather applications, from garment and footwear to automotive and furniture upholstery, for today’s eco-conscious leather producers and consumers.

At the core of the DyTan® process is Archroma’s patented AVICUERO® System, which is based on novel molecules that enable more sustainable leather tanning and dyeing, developed by Archroma in cooperation with leather technology consultant Dr Leather. It enables collagen fibers in the leather to be covalently cross-linked through a simplified process at low temperatures. As a result, the system shows strong potential to save energy and water, while also reducing process time and CO₂ emissions by up to 23%.*

The DyTan® process combines the AVICUERO® System with Trumpler’s bio-based fatliquors and retanning agents based on functional biopolymers produced from hydrolyzed shavings – resource-saving technology that Trumpler has been refining for 15 years.

As a global partner of Archroma, the Trumpler Group is responsible for the distribution of the AVICUERO® System worldwide. Delivering technical support and first-class customer care, Trumpler will help leather manufacturers and brands to implement sustainable tanning and draw on its comprehensive product portfolio and process knowledge of tanning, retanning and fatliquoring processes.
 

* Estimations carried out with the Archroma ONE WAY Impact Calculator show energy savings of up to 25% and reduced process time leading to a reduction in CO₂ emissions of up to 23%, compared to traditional chrome tanning. They also show significant water savings compared to other metal-free tanning systems¹. With the ONE WAY Impact Calculator, customers will be offered personalized calculations for their specific processes.

¹ Trials made at Trumpler GmbH application lab.

Freudenberg Performance Materials Apparel (Freudenberg) launches its biodegradable fusible cotton shirt interlinings range 46xx. With this innovation, the world’s leading specialist in woven, knitted, weft and nonwoven interlinings reduces its impact on the environment and supports customers in achieving their own sustainability objectives. In Asia, the series is marketed under the name 42xx series.

Approved biodegradability and non-toxicity by Hohenstein Laboratories
The new Freudenberg fusible interlinings for shirts and blouses have been developed in such a way that they are harmless to people and the environment at the end of their life cycle. Germany’s independent Hohenstein Laboratories performed biodegradation tests on the 46xx series, based on the Hohenstein method which draws on DIN EN ISO 11721-2:2003 and EN ISO 846, and approved it as biodegradable and ecotoxicologically harmless. The tests by Hohenstein showed no negative effects on either the germination of garden cress nor on earthworms in the acute toxicity test.

Energy-saving interlining
The new biodegradable shirt interlinings also show great potential for energy saving, as the fusing can be performed at a low temperature. Concretely, this means that the resulting temperature between the upper fabric and the shirt interlining during fusing is only 127°C which is significantly lower than the commonly used temperature of 143°C. Certified to OEKO-TEX® STANDARD 100 Class II for successfully testing for no harmful substances, the shirt interlinings are washable at up to 40°C and resistant to dry cleaning. In addition, it has also passed all ecological-toxicological tests and is a perfect end-of-life cycle solution.

Product details and availability
The products in range 46xx are available in Europe in the color white and the following weight classes: 4605 (90g/m2), 4616 (150g/m2) and 4618 (55g/m2). The adhesive of the interlinings consists of a 100% degradable bio-polymer. The shirt interlinings are ideal for reinforcing shirt and blouse collars, cuffs and plackets used in fashion, leisure and business clothing. The biodegradable, non-toxic interlinings are particularly important for labels with an ecologically sustainable claim.

Alchemie Technology is the latest company to join the British Textile Machinery Association (BTMA), as all of the organisation’s members gear up to showcase an array of new innovations at ITMA 2023 in Milan from June 8-14 this year.

Cambridge-headquartered Alchemie is the inventor of two technologies – EndeavourTM and NovaraTM.

The Endeavour digital dyeing system produces no wastewater and reduces water consumption by up to 95% compared to traditional dyeing. The virtually waterless process delivers dyed fabric with high colour consistency and colour fastness and does not require post dyeing washing steps which leads to an energy reduction up to 85%. It can deliver any colour shade required and enables on-demand digital colour changeovers in any run length, from a few metres to several kilometres.

Similar energy savings can be achieved with the Novara precision finishing system which utilises a nozzle array to deliver finishing chemistry with millimetre resolution. Finishing chemistries penetrate deeply into the fabric due to the combination of high velocity liquid jetting and precisely-controlled vacuum and textile finishes are applied only where needed, reducing chemistry usage and enabling multi-functionality.

In the past year, Alchemie, backed by Swedish fashion giant H&M, has established a first demonstration hub at customer JSRTEX in Taiwan. It is now progressing plans to set up further centres at customer sites around the world.

International textile producers meet again in Istanbul, Turkey, from June 14 – 18, 2022 on the occasion of the ITM + Hightex Exhibition. In Hall 9 (Hightex) the exhibitors will present the complete industry value chain from nonwovens raw materials, production machines and accessories to the endproduct. The related industries covered include hygiene, filtration, fabrics and apparel, medical, automotive, wipes, home furnishings and upholstery. DiloGroup offers tailor-made production systems from one supplier and will inform about its portfolio and the latest equipment developments from fibre opening to the finished felt.

DiloGroup will inform about complete lines as well as high speed needlelooms for spunbonds. A new, simplified elliptical needle beam drive makes Hyperpunch technology also attractive for standard application. Hyperpunch HαV allows a more uniform stitch distribution in the preneedling process especially in combination with the new needle pattern 6000X. In a complete needling line this felt homogenization process can be improved further. The new needle pattern 8000X is a milestone in the needle pattern development process and results in endproduct surfaces with low markings over a wide range of advances/stroke.

Another strong pillar of the sales program over decades has been fibre preparation and high speed webforming equipment for other nonwoven technologies. The further development of the high-speed layering principle “Hyperlayer” made progress for better CD strength through a combination of inline cards and crossline card with crosslapper. Particularly, carding machines in a working width above 3.5 m up to 5.1 m have been supplied by DiloSpinnbau as complete high speed carding systems, comprising two or even three cards in a line to directly feed the hydroentangling units of various suppliers. Together with DiloTemafa not only have high throughput rates been achieved in the fibre preparation section of the line but also dedusting filtering and air-conditioning systems have been successfully engineered and integrated.

Together with Sicam, Dilo has combined know-how for hydroentangling technology and therefore can provide complete lines as general contractor including equipment for cutting, winding and packaging.

Another interesting machine is the 3D-Lofter, first presented during ITMA 2019 in Barcelona, which offers a wider range of nonwovens applications by exploring the third dimension. A series of single web forming units which work according to the aerodynamic web forming principle deliver defined fibre masses in varied patterns on a base needlefelt. A stress oriented production of technical formed parts resulting in fibre savings or patterned DI-LOUR or DI-LOOP felts with or without repeat are two examples for this technology which explores new application areas for needlefelts.
The 3D-Lofter technology may also be used “inverted” as “IsoFeed” for filling up bad spots in web mats and thus achieves a better homogeneity of spunlace or airlay products.

The DiloLine 4.0 concept offer I4.0 modules which not only support the user but also facilitate quality control and maintenance by a maximum data transparency in production and control of operation. The Dilo solutions “Smart Start” for a fully automatic start of the production line or “DI-LOWATT” for energy savings are accompanied by Siemens solutions which can be selected via App or Data Cloud “MindSphere”.

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.

Knopf’s Sohn, a contract finisher of technical textiles, has installed a fully automated Montex stenter at its plant in Helmbrechts, Germany.
Knopf’s Sohn is processing technical textiles for the automotive, aerospace, home furnishings and workwear markets, based on wool, cellulose, polyamide and polyester fabrics, along with elastane blends, in weights of 80-800gsm.

The Montex machinery range is constantly being upgraded to meet evolving customer needs for greater automation, ease of operation and energy optimisation. The latest ten chamber line at Knopf’s Sohn, with a working width of up to 2.0 metres, was engineered to specific requirements in order to accelerate the company’s move to fully automatic control of its production, and high scaffolding was required for its installation.

The line benefits from two integrated ECO Booster modules to provide high energy savings. These compact, air-to-air heat exchangers, installed within the roof structure of the line, exploit energy from the exhaust gas to preheat up to 60% of the incoming fresh air entering the stenter.

The use of a single ECO Booster unit has been calculated to save up to 35% in energy costs, based on fixation processes. Fully automatic operation, set at the Monforts Qualitex control unit, ensures there is no additional burden on the machine operator.

The line is powered by Exxotherm indirect heating, which practically eliminates the yellowing which can be experienced during the treatment of certain polyamide and elastane-based fabrics, and is also equipped with a Conticlean circulating air filter system for constant high drying capacity.

Software
The latest Qualitex visualisation software offers operators reliability and easy control with its full HD multi-touch monitor and slider function, dashboard function with individual adaptation to operating states and faster access to comprehensive recipe data management.

With the Monformatic control system, the exact maintenance of the dwell time in combined treatment processes (drying and heat-setting) can be monitored. When the heat-setting point is reached, the fan speed is automatically adjusted, keeping energy consumption fully under control.

Double the production rate, with lower energy consumption per kilogram of fiber material – that might sound like a contradiction, but the new Trützschler pre-cleaner CL-X makes it possible. It gently and reliably removes coarse contaminants like leaf debris, stalks or seeds from cotton with minimum loss of good fibers. The pre-cleaner CL-X provides more efficiency and lays the foundation for a high-quality end-product before the cotton is further processed in mixers and fine cleaners.

CL-X features at one glance

• Continuous production of 1,600 kilograms per hour for present blow room configuration.
• 30% energy saving compared to the current benchmark.
• Integrated WASTECONTROL for automatic adjustment recommendation of waste excretion to avoid unnecessary fiber loss.
• 2.60 m long cleaning section.
• New and improved grid geometry for better separation and gentle tuft treatment.
• Material draft due to 10 % higher speed of second opening roller for reliable and consistent fiber transport.
• Optimal cleaning level and minimal fiber loss due to individual and stepless grid adjustment for each opening roller by motor.
• Gentle tuft treatment with adjustable opening roller speed.
• Synchronized lot management (automatic lot change for up to three lots).
• Connection possibility for a waste box (for waste analysis).
• Lower cost of ownership.

On the occasion of the VDMA press conference, André Wissenberg, Head of Marketing, Corporate Communications and Public Affairs at Oerlikon Polymer Processing Solutions Division, presented the company's concept for ITMA Asia with the claim: Clean Technology. Smart Factory.

Due to the Corona pandemic, Oerlikon has decided to concentrate with their Chinese sales and service teams on guests primarily from China and greater Asia. However, some experts from Germany, who are working in China at our locations anyway, will be live on site at the booth. Other experts from Germany, India and US will be available online for the entire 5 days of the trade fair and will simply be connected by video conference to the discussion with the visitors on site if there is a need for.

At ITMA Asia 2021, Oerlikon will present the next generation of an automatic texturing solution with up to 25 % energy saving and up to 30 % higher production speed, easy maintenance and best yarn quality. The core of this machine, the socalled EvoCooler, will be shown as an exhibit in combination with digital solutions like AIM4DTY. In the field of high-precision flow control solutions components, the two new gear metering pumps developments for the production of aramid and spandex will be presented as well.