From the Sector

The identification of profitable new niche markets has been central to the success and continuous expansion of Germany’s Dolinschek, a leading knitting, dyeing and finishing specialist, located in Burladingen in Baden-Württemberg.

“There is so much more to textiles than just clothing,” says Theo Dolinschek, who runs the company with his brother Erwin. “We handle many different technical materials such as automotive components, geotextiles and wallcoverings, but also those for more unusual applications such as inlays for extractor hoods, cut protection fabrics and even wool felts which are employed as insulation on wind turbines.

“We have also recently started to produce compression stockings in a variety of colours, because not everyone wants them black, beige or skin coloured. The most important product areas for us now are in sportswear, corsetry and lingerie, as well as orthopedic and medical products, workwear and protective clothing, but in addition, many other technical applications.”

The Dolinschek brothers moved their business to the historic site of the former Ambrosius Heim textile company in Burladingen in 2001 in order to expand. At the time, the company – founded by their father in 1980 as a textile wholesaler before moving into dyeing – employed just 13 people. Within a year, the company had bought additional space at the site.

Now, with Theo in charge of technology and sales, and Erwin responsible for production, the company employs almost 100 people and operates on an integrated site of 35,000 square metres.

In 2005, a laminating department was established by the company and since 2012 investment in knitting machines has been ongoing.

“The further we went into vertical integration, the more of our own products we were able to position on the market and so we were also able to make ourselves more independent,” says Theo. “We have continued to develop and today we can produce high-quality fabrics for many fields, with 42 knitting machines, 36 dyeing machines, three stenter frames and many other production and processing machines.”

Dolinschek has also developed its own proprietary TMG dyeing machines which have subsequently been successfully sold to many other companies all over the world. There are currently 11 of these machines  in operation at the Burladingen site and around 45 installed at other companies.

For finishing technology, however, the company relies on Monforts, and has installed a new seven chamber Montex TwinAir stenter range with a Montex®Coat coating unit in knife execution, enabling the coating of dimensionally stable knitted fabrics with polyurethane or acrylate. Another unique feature is the Teflon-coated (non-stick) transportation belt through the system.

The Montex line is also equipped with integrated heat recovery and exhaust gas purification to ensure the most resource-efficient processing available on the market. The exhaust air goes from the Monforts heat recovery system into an existing air/water heat recovery system and then into an electrostatic precipitator.

Highly-intuitive Monforts Qualitex visualisation software allows all machine functions and process parameters to be assessed and controlled easily.

Penn Textile Solutions GmbH is one of the world's leading manufacturers of elastic fabrics for under-wear, corsetry, sportswear and swimwear, as well as highly functional textiles for technical applications. The fully integrated company with its own warping, circular knitting, warp knitting, dyeing and finishing facilities currently employs around 150 people.

Penn has long relied on Mahlo
Penn has relied on the cooperation with Mahlo for years. The manufacturer of measuring, control and automation systems for web-shaped goods has decades of experience in the field of process control. Until the summer of 2020, the textile manufacturer had been using a basis weight measurement system in the stenter frame outlet with beta radiation and manual control. "When the krypton preparations had passed their half-life, we had to make a decision: Exchange or replace the system right away", says operations manager Franz Schütte. They sat down with Mahlo representatives and looked for the best solution. Since the systems had already reached a high operating age and the measurement was limited to the basis weight, a new concept was decided upon. "Mahlo made us the best price-performance offer." The new system should be even more efficient and easier to operate for the special makes..

The compression zones of the functional fabric create corresponding distortions within the textile surface in its raw state, which have to be smoothed out in the fixing process. This work is now taken over by a process control system. The Mahlo Famacont PMC-15 with two measuring points automatically controls the leading of the stenter frame by continuously and contactlessly determining the mesh density. In addition, the Patcontrol PCS-20 process control system ensures that the dimensions of the different zones are recorded and also automatically controlled. "The previous beta-radiation facility was not able to collect this kind of data," explains the Penn operations manager. Another important aspect for the textile manufacturer: the complete and costly radiation protection is no longer necessary with the new systems.

Despite very good experience with Mahlo in the past, every change naturally involves a risk. Penn did not have to rely on theoretical considerations, however, but carried out tests in advance with appropriate sample material in the Mahlo test laboratory. The results convinced the decision-makers.

In a roundtable discussion during the recent Innovate Textiles & Apparel (ITA) textile machinery exhibition, imogo Founding Partner Per Stenflo and representatives from a number of like-minded European companies discussed the opportunities for new spray application technologies for the dyeing and finishing sector.

These technologies can achieve tremendous savings for manufacturers compared to traditional water-intensive processes it was explained at the event, held online from October 15-30th.

Pioneer
imogo – one of the latest companies to join TMAS, the Swedish Textile Machinery Association – is one of the key pioneers in this area with its Dye-Max system. Dye-Max spray dyeing technology can slash the use of fresh water, wastewater, energy and chemicals by as much as 90% compared to conventional jet dyeing systems. This is due to the extremely low liquor ratio of 0.3-0.8 litres per kilo of fabric and at the same time, considerably fewer auxiliary chemicals are required to start with.

Obstacles
Such technologies, however, face a number of obstacles to adoption and during the ITA discussion it was agreed that 2020 has not provided the ideal climate for adventurous investors. “The textile industry is quite conservative and is definitely in survival mode at the moment and it is not the time to be a visionary,” said Stenflo. “Day to day business is about staying alive – that’s the reality for many of our customers.” Nevertheless, all of the panellists agreed that sustainable production will remain top of the agenda for the textile industry in the longer term and spray technologies for dyeing and finishing processes will be a part of it.

“Any investment in something new is a risk of course, and we have to be able to explain and convince manufacturers that there’s a good return on investment, not only in respect of sustainability, but in terms of making good business sense,” said Stenflo. “Here we could use the help of the brands of course, in putting pressure on their suppliers to be more sustainable. Governments also have a role to play, in providing incentives for producers to move in the sustainable direction. Sustainability alone will never cut it, there has to be a business case, or it won’t happen.”

Marketing
The marketing of sustainable new fibers is comparatively easy for the brands compared to explaining the difficult textile processes and the chemistries involved in fabric and garment production, he added.

“These fibers, however, currently go through all the same dirty processes that we need to get away from, so it must happen,” he said. “In developing our technologies, it has been important for us to avoid disrupting existing supply chains, stick with using off-the-shelf chemistries and dyes, and involve the dye manufacturers who are an essential part in how operations are driven today. “In fact, collaboration across the entire textile supply chain – from the brands right back to the new technology developers – is essential in moving the sustainability agenda forward.

Business models
“We are also looking into new business models in terms of how to reduce or lower the thresholds for investment and minimise the risk for the manufacturers who are looking to be the innovators,” he concluded. Also taking part in the ITA roundtable discussion were Simon Kew (Alchemie Technology, UK), Christian Schumacher (StepChange Innovations, Germany) Tobias Schurr (Weko, Germany), Rainer Tüxen (RotaSpray, Germany) and Felmke Zijilstra (DyeCoo, Netherlands).

European innovations
“It’s fantastic that all of this innovation is taking place in Europe based on established know-how and forward thinking,” said TMAS Secretary General Therese Premler-Andersson.

“Spray application technologies are a perfect illustration of how new digital technologies can lead to more sustainable production, in this case by replacing water-intensive processes with the highly precise and controlled application of dyes and chemistries as vapour.
“There was a major project by the Swedish research organisation Mistra Future Fashion recently, involving many brand and academic institute partners. The project’s Fiber Bible 1 and 2 reports conclude that it’s very difficult to make assumptions that one fiber is better than another, because it’s so much about how fabrics and garments are being produced from them. The study also found that 55% of the chemicals used in a garment comes from the dyeing. This is where a number of TMAS companies can make a difference.
“An organic or recycled cotton t-shirt is not automatically more sustainable than a conventional cotton t-shirt, or even one made from synthetics – the alternative fibers are a good start but you have to consider the entire life cycle of a garment, and that includes the smart technologies in textiles production.
“TMAS members – backed by Swedish brands and advanced research institutes – are playing an active part in pushing forward new concepts that will work, and I have no doubt that digitalisation now goes hand in hand with sustainability for the textile industry’s future.”          

• Energy efficiency will be the topic of VDMA’s next edition of Textile Machinery Webtalks on 27 August 2020 (2 pm - 4 pm CEST).  

Efficient energy management is of increasing importance in textile dyeing and finishing. Innovative machine designs with minimal water and energy consumption as well as the recovery and use of the heat energy produced in the processes represent valuable potential savings for any modern company.

The presenters at a glance:

• Ludger Sommer, Thies, will show how to manage heat energy in wetprocessing.
• Benjamin Schnabel, Brückner Textilmaschinen is going to demonstrate how to make one of the most energy consuming processes in textile manufacturing more sustainable, eco-friendly and cost effective.
• Fabian Buckenmayer, PLEVA Sensors and Controls will inform about the specific opportunities for an energy-efficient textile production via measuring and controlling process parameters.  

After the presentations, the experts will be available to answer the participants' questions. The webtalk series is very well received by the textile industry. During the first three webtalks, VDMA welcomed almost 900 registered participants from more than 50 countries. Registration is still possible.

• Producing fabric for medical gowns: Advanced barrier effect solutions support COVID-19 efforts

Huntsman Textile Effects and Bao Minh Textile, one of the largest and most modern woven fabric producers in Vietnam, are collaborating to produce fabric that meets the stringent performance standards required of isolation gowns. High-quality medical gowns are essential protective wear for healthcare workers combatting the global COVID-19 pandemic, but these are in short supply worldwide.

Bao Minh Textile will initially treat 760,000 meters of woven fabric with a carefully curated combination of Huntsman Textile Effects barrier effect solutions and auxiliaries. This fabric is sufficient to produce 345,000 high-grade isolation gowns.

Bao Minh Textile’s isolation gown fabric relies on a range of Huntsman pretreatment, dyeing and finishing solutions. These include CLARITE® ONE, an all-in-one pretreatment for peroxide bleaching; NOVACRON® and TERASIL® dyes; PHOBOL® CP-C, an excellent oil-, water- and stain-repellent finish; and PHOBOTEX® RSY, a non-fluorinated durable water repellent with extremely high washing resistance. PHOBOL® EXTENDER XAN is also applied to further increase wash durability.

Archroma, a global leader in color and specialty chemicals, will be presenting its innovative and sustainable denim solutions for manufacturers and brands at DenimsandJeans Vietnam 2018, on June 27 and 28.
From fiber to finish, Archroma offers a scope of possibilities for effects and colors, from the authentic roots of indigo to the most innovative and eco-advanced solutions. Archroma is a recognized leader in integrated solutions, offering best-in-class auxiliaries for bespoke process packages.
Visitors will be able to discover solutions designed to make denim in a more sustainable and responsible way, in particular:
DENISOL®, BRINGING INDIGO BACK TO ITS ROOTS - NOW ANILINE-FREE*
Archroma’s Denisol® range is a newly developed pre-reduced liquid indigo solution that is manufactured in Archroma’s award winning ‘zero liquid discharge’ manufacturing plant in Pakistan.

• Denisol® Indigo 30 liq is compliant with major official eco-standards and requirements from retailers, brands and fashion leading companies and helps to produce fabrics suitable for current eco-labeling such as bluesign® and GOTS.
• Responding to demands for a non-toxic alternative to the dyes that are used for the iconic and traditional indigo blue that consumers associate with denim and jeans, Archroma just announced the upcoming new Denisol® Pure Indigo 30.

ADVANCED DENIM, TOWARDS WATERLESS DENIM DYEING
Consider this: The water needed to produce one pair of jeans is said to be ~ 11'000 liters(1). With approximately 167 million pairs of jeans produced monthly(2), that is 1,837,000,000,000 liters of water consumed every month in the process! Based on the Denim-Ox and Pad/Sizing-Ox dyeing processes, Archroma’s multi-awarded ADVANCED DENIM, dyeing technology allows savings of up to 92% in water, 87% in cotton waste and 30% in energy, compared to a conventional denim dyeing process.
The technology has been adopted by brands like Patagonia and received the prestigious 2012 ICIS Innovation Award and Innovation with Best Environmental Benefit Award.

• Optisul® C, “soft colors” made easy
  Colors other than blue have been tricky to achieve in the past. With Optisul® C dyes, denim manufacturers can expand their color horizons with this range of six dyes especially designed to produce soft denim colors in continuous dyeing processes, as well as on coating and printing. Optisul® C affinity-free, sulfide-free dyes can easily be combined with each other to create garments suitable for wash-down treatments in a wide array of easily achievable and reproducible soft colors. They are suitable for GOTS and bluesign® approval.
• Diresul® RDT Ocean Blues, ocean-themed bright sulfur blue dyes
  Archroma’s Diresul® RDT Ocean Blues are a collection of vibrant, ocean-themed bright sulfur blue dyes. These best-in-class dyes and their auxiliaries bring out the best of indigo, improve workability, dyeing consistency and process safety.
  They can be combined with Denisol® Indigo 30 liq in bottoming/topping manufacturing routes for avant-garde blue styles. At the booth, Archroma will display an “illustration collection” of exciting indigo casts.
• Diresul® blacks & greys, a universe of greys and deep black and navies.
  Archroma’s dye portfolio of conventional and black Diresul® specialties allow to create a universe of greys and deep black and navies. From superficial to solid blacks for both extreme wash-down and stay black effects.

EARTHCOLORS, TRACEABLE FROM NATURE TO FASHION
As consumers increasingly aspire to functional, beautiful and meaningful clothing, brands and manufacturers are increasingly interested in the environmental impact of the denim industry. Archroma has placed sustainability at the heart of its innovation process to create products and processes that improve the industry’s sustainability.
The EarthColors patented range of “biosynthetic” dyes for cotton and cellulose-based fabrics, which are made from waste left over by the agricultural and herbal industry after extraction, such as almond shells, saw palmetto, or rosemary leaves. The latest NFC technology used on the end-product hangtags enables transparency and traceability through the supply chain to consumers.
The EarthColors allow to produce the earth tones that are coming strong: red, brown and green colors. They have been adopted by brands such as Patagonia, Kathmandu and G-Star, and won an OutDoor Industry Award 2017.

SOLUTION PACKAGES FOR SUSTAINABILITY
Brand owners and retailers around the world are taking action to evaluate the environmental impact of textile treatment, dyeing and finishing processes in response to consumer concerns.

Archroma recently introduced the ONE WAY Process Simulator, the last update of a calculation tool that supports its ONE WAY Sustainability Service introduced back in 2012. The new, online software can be used to mimic and compare products and processes, and thus calculate the ecological and economical profile of the final end-product.
Archroma’s portfolio of ZDHC MRSL-compliant chemicals and dyes is integrated into the ONE WAY calculation tool since 2013.
“Innovation and sustainability go hand in hand,” says Paul O’Prey, Head of Sales, Brand & Performance Textile Specialties, Archroma, Vietnam. “While developing new products and services, we always consider the environmental impact so they are as sustainable as possible. This can be seen in our innovative and eco-advance products, such as the water-saving ADVANCED DENIM and the aniline-free* Denisol® Pure Indigo.”