From the Sector

Members of TMAS – the Swedish textile machinery association – are proving instrumental in pioneering new sustainable processes for the dyeing, finishing and decoration of textiles.

The wasteful processes involved in these manufacturing stages are only one component in the development of viable circular supply chains for textiles that are now being established in Sweden.

At the recent Conference on Sustainable Finishing of Textiles, held across three separate afternoons on September 30^th, October 1^st and October 7^th, delegates heard that Sweden will introduce extended producer responsibility (EPR) for waste textiles and clothing at the beginning of 2022, ahead of the adoption of a similar European Union-wide EPR system in 2025.

New fibers
Swedish companies are also active in the development of new fibers derived from waste clothing, building on the country’s legacy leadership in pulp and paper production.

At the Sustainable Finishing of Textiles Conference, however, it was said that all of the environmental gains made by such sustainable new fibers can potentially be cancelled out in the further processing they are subjected to – and especially in resource-intensive conventional dyeing, finishing and decoration.

TMAS members Baldwin Technology and Coloreel have both developed solutions to address this issue.

TexCoat G4
During the conference, Baldwin’s VP of Global Business Development Rick Stanford explained that his company’s TexCoat G4 non-contact spray technology significantly reduces water, chemistry and energy consumption in the finishing process. It consistently and uniformly sprays chemistry across a fabric surface and applies it only where needed, on one or both sides.

Instant coloring
Coloreel’s CEO Mattias Nordin outlined the benefits of his company’s technology which enables the high-quality and instant coloring of a textile thread on-demand and can be paired with any existing embroidery machine without modification. This enables unique effects like shades and gradient to be achieved in an embroidery for the first time.

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.

It is exactly 100 years ago on August 17th this year that Carl Axel Gustafsson returned from the USA to Sweden with a significant agency agreement from the Boston-based sewing machine leader Reece.

Back in 1921, Reece, along with its competitor Singer, entirely dominated the buttonhole machine market and were the world’s only manufacturers of these machines for jackets, trousers and coats.

Gustafsson’s license enabled his new company A C Gustafsson to become one of Europe’s first leasing organisations, hiring out Reece buttonhole machines and receiving payment per sewn buttonhole stitch.

This business thrived for many decades and formed the basis for the entire ACG Group as it exists today.

Forty years later, on September 2nd 1961 to be precise, Reimar Westerlind walked out of a restaurant after a long and enjoyable lunch with someone he’d never met before, having signed his intention to buy a company he knew nothing about on an improvised contract written on the back of a menu.

“What I didn’t know then was that my dining partner was the family lawyer of Carl Axel Gustafsson,” Reimar explains. “I had no money and knew nothing about the textile industry and I also quickly discovered the business was not doing so well at that time and tried to get out of the agreement, but he insisted I honour it. He told me he had money and would back me, but I’d have to work hard and pay him back in full.”

Reimar certainly took that advice, and at the age of 92 still travels to his office every day to oversee the operations of the diverse companies now operating under the ACG umbrella.

Although textiles remain the bedrock of the business, under Reimar Westerlind’s management, ACG Group has branched out into many other fields of activity over the past 60 years, and its diversity has also led to some highly unexpected developments.

Like many other European manufacturers, ACG also began to expand beyond its traditional borders from the 1970s onwards – initially into the former Soviet Union and subsequently establishing subsidiaries in Estonia, Lithuania, Finland, the Ukraine and Denmark.

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.

Founded in 1952, Svegea of Sweden – a member of TMAS, the Swedish textile machinery association – has over 60 years of experience in exclusively designing, manufacturing and installing high quality collarette band cutting machines worldwide.

These are used by garment manufacturers around the world for the production of tubular apparel components such as waistbands, cuff and neck tapes and other seam reinforcements, such as Triteks Trejd.

Founded in 1994, this family-owned business employs over 280 people at its plant in Prilep, North Macedonia, where high quality cotton fabrics are expertly converted into the products of the Tritex Underwear brand.

The Prilep operation encompasses the processing of fabrics, design, cutting, sewing, quality control and packing in a fully integrated workflow.

With around 200 sewing machinists, the Tritex product range encompasses briefs, boxers, slips, t-shirts, pyjamas and body slips which are primarily sold to countries within the European Union, as well as the domestic market.

The company has also just completed the digitalisation of its full production via the in-house DPC-SYS system, installing around 200 industrial PCs linking each of its workstations and departments.

Triteks Trejd currently operates three of the latest Svegea collarette cutting machines and is highly satisfied with their performance, as well as the service provided by the Swedish company.

Monforts Head of Technical Textiles Jürgen Hanel will take part in the next international webtalk to be held by the VDMA’s textile machinery division on May 20th.

He will be joined by Johannes Lutz, Research and Development Engineer at Pleva, to provide full details of how the latest Monforts coating technology is supported by special microwave measuring systems.

The Montex®Coat magnetic roller coating option allows a wide range of coatings and finishes to be carried out, while being easy to handle for operators and much easier to clean at the end of the process.

“This roller provides textile finishers with an expanded range of options due to the fully-adjustable positioning of the magnet within the roller and with four different magnet positions possible, can be set to operate both as a direct coating system and as an indirect coater,” Hanel said.

Lutz will provide an overview of the use of Pleva microwave measurement technology in coating processes, in addition to the latest developments in electronic evaluation.

To ensure a constant high quality in coating operations it is necessary to accurately measure and control the amount of chemical being applied, and Pleva’s series 700 devices achieve this via contact-free microwave moisture measurement technology which can be supplied either as single- or three-point units, or as a traversing measurement unit.

The free-to-attend webtalk will take place on May 20th from 2-3pm (CEST) and registration can be made here, along with further information.