From the Sector

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.

Viscose speciality fibre manufacturer Kelheim Fibres, nonwoven producer Sandler, and hygiene product manufacturer pelzGROUP have jointly developed a new panty liner that is plastic-free according to the European Single-Use Plastics Directive (SUPD). This innovative solution is a step towards reducing the amount of plastic in hygiene products – and thus also a contribution to tackling the problem of plastic pollution.

According to a UNEP study on marine litter and microplastics, eight million tons of plastic end up in the oceans every year. A significant portion of this pollution comes from single-use plastic products, including conventional period products such as pads or panty liners.

The partnership between the three companies was formed under the Open Innovation principle, which allowed for creative idea exchange and facilitated the development of an innovative product. According to Jessica Zeitler, R&D Specialist at Sandler, “Our collaboration with Kelheim Fibres and pelzGROUP is a great example of how companies can work together to create solutions that benefit both the environment and consumers. We are proud to be part of this project and the opportunities it offers.”

For hygiene product manufacturer pelzGROUP, it is important to combine sustainability and performance to achieve broad acceptance in the market. “Our panty liner meets the strict requirements of the European Single-Use Plastics Directive (SUPD) while also matching the performance of conventional synthetic products. At the same time, our new panty liner has a completely European supply chain. This means short distances and therefore low CO2 emissions, and – especially in times of global disruption – reliability for our customers,” emphasizes Dr. Henning Röttger, Head of Business Development at pelzGROUP.

"Our viscose speciality fibres are an environmentally friendly and high-performance alternative to synthetic materials," says Dominik Mayer, Project Manager Fibre & Application Development at Kelheim Fibres. "They are at the very beginning of the product value chain and yet have an enormous impact on the functionality of the end product. Open innovation allows us to bring all partners in the value chain to the table, to find the best solution together in a very short time and bring it to commercialisation - the collaboration with Sandler and pelzGROUP is an important milestone in our AHP journey."

Absorbent hygiene products such as diapers, sanitary pads, and incontinence products are an integral part of our daily lives. However, most of these products contain synthetic components and contribute to the global plastic waste problem. The search for alternatives is becoming increasingly urgent. The catch is that only innovations that offer the same performance and reliability as conventional products can be successful in the market. After all, no one wants to compromise in such a sensitive area as personal hygiene.

Kelheim Fibres is currently working on various development projects to design fully biobased AHP (absorbent hygiene product) concepts that do not compromise on performance. In this area, the company continues to focus on its wood-based specialty fibres, which the tampon industry has trusted for decades. However, the requirements for AHP products differ, as each layer must fulfil a specific function.

To meet these requirements, Kelheim Fibres has developed a range of functionalized specialty fibres, including hydrophobic Olea, trilobal Galaxy®, and the hollow fibre Bramante. These specialty fibres ensure optimal results in every layer of the AHP product.

All of Kelheim's fibres are manufactured from 100% wood pulp derived from certified and sustainably managed forests. They are fully biodegradable - microorganisms in soil and seawater ensure that no residues remain.

A current example of such a partner project is the development of a completely bio-based panty liner with the nonwovens manufacturer Sandler and the hygiene products manufacturer pelzGROUP, which is due to be launched on the market shortly.

In addition to new projects in the field of biobased disposable and reusable solutions, Kelheim will also present its tried and tested fibres at INDEX™23, for example for tampons or flushable wipes.

Lotus Teknik Tekstil A.Ş., Türkiye, has successfully started up a complete line to produce nonwoven roll goods for biodegradable, plastic-free wet wipes. This line has been delivered, installed, and commissioned by international technology group ANDRITZ.

The neXline wetlace CP line combines the benefits of two technologies: wetlaid and spunlace. Natural fibers are processed gently to create a high-performance and sustainable wipe. This next-generation wipe, called Newipe®, combines the benefits of spunlace fabric, in particular remarkable strength in all directions, with the biodegradability and softness of a WetlaceTM fabric. It is produced with a lower carbon footprint, has a low lint rate, and does not generate dust during production.

Lotus Teknik Tekstil A.Ş. is a leading nonwoven roll good producer and a member of a group company. The group company consists of 4 companies that operate end-to-end manufacturing including nonwovens, cardboard packings, plastics, and finished wet wipe products. Headquartered in Istanbul, Sapro is the leader in Türkiye and one of the four leaders in the manufacturing of wet wipes in Europe. The company produces, converts, and supplies 161 million sheets of wipes per day for personal, household, and industrial use, exporting 70% of its production to 65 countries all over the world. Sustainability plays a prominent role in Sapro’s business strategy.

The diabetic community has always been a priority for Hologenix, creators of CELLIANT® infrared technology, so the company embarked on an initial study to test the hypothesis that the technology can positively impact diabetic patients with vascular impairment, now published in Journal of Textile Science & Engineering. Another study is underway as well with more research on the horizon.

According to statistics cited in the International Diabetes Federation Diabetes Atlas, 9th edition, globally, close to a half billion people are living with diabetes and that number is expected to increase by more than 50 percent in the next 25 years.
 
The introduction of the study in the Journal of Textile Science & Engineering also reports that diabetic patients frequently suffer from a combination of peripheral neuropathy and peripheral artery disease, which particularly affects their feet. It further states that it has been estimated that the lifetime risk for the development of foot ulcers in diabetic patients can be as high as 25 percent and that the risk of amputation is 10 to 20 times higher than in non-diabetic subjects.
 
The study was performed by Lawrence A. Lavery, D.P.M., M.P.H., a Professor in the Department of Plastic Surgery at UT Southwestern Medical Center. His clinic and research interests involve diabetic foot complications, infections and wound healing, and he participated in the conception, design, implementation and authorship of the Journal of Textile Science & Engineering study.  

CELLIANT technology is a patented process for adding micron-sized thermo-responsive mineral particles to fibers, in this case polyethylene terephthalate (PET) fibers. The resulting CELLIANT yarns were woven into stockings and gloves containing either 82% CELLIANT polyester, 13% nylon and 5% spandex or for the placebo, 82% polyester with no CELLIANT, 13% nylon and 5% spandex. CELLIANT products absorb body heat and re-emit the energy back to the body as infrared energy, which is non-invasive and increases temporary blood flow and cell oxygenation levels in the body.

The objective of the study was to “evaluate changes in transcutaneous oxygen (TcPO2) and peripheral blood flow (laser Doppler, LD) in the hands and feet of diabetic patients with vascular impairment when CELLIANT gloves and stockings are worn.” While there was not a statistically significant result across all subjects, the study did show that some patients wearing CELLIANT stockings for 60 minutes had an increase of as much as 20% in tissue oxygenation and 30% in localized blood flow. According to the study’s conclusion, “the trends that were observed in favor of CELLIANT stockings suggest that a larger well-designed clinical trial should be undertaken and may provide evidence of clinical efficacy in treatment of the diabetic foot.”
 
The study also notes that “There have been no documented or observed side effects of wearing CELLIANT stockings, and they are relatively inexpensive compared to conventional pharmaceutical interventions.”

Hologenix has embarked on a more comprehensive trial, “Study to Evaluate CELLIANT Diabetic Medical Socks to Increase Tissue Oxygenation and Incidence of Complete Wound Closure in Diabetic Foot Wounds” – NCT04709419, which focuses on the impact of CELLIANT technology to potentially improve tissue oxygenation and wound healing outcomes.
 
“We are excited to explore whether future studies of infrared, with its most common biological effects of increased localized blood flow and cellular oxygenation, could result in a breakthrough in diabetic patients with vascular impairment,” said Seth Casden, Hologenix Co-founder and CEO. “We see a huge potential opportunity with this research for helping to fulfill our core mission of improving people’s health and well-being by potentially reducing the impact of diabetes, and we are actively seeking partners to expand our research efforts.”

International technology group ANDRITZ has delivered, installed, and commissioned a mechanical textile recycling line and an airlay line at Novafiber’s nonwovens production mill in Palín, Guatemala. Both lines have been successfully operating since December 2022.

The recycling line – the second tearing line ANDRITZ supplied to Novafiber – processes post-industrial textile waste from Central America. The recycled fibers feed the latest ANDRITZ Flexiloft airlay line, which produces nonwoven end-products for the bedding and furniture industries – a true example of a circular textile-to-nonwoven approach. The production process ensures complete material use as a state-of-the-art edge trim recycling system returns any waste directly to the tearing and/or airlay line.

This combination of ANDRITZ tearing and airlay lines allows Novafiber to process large amounts of post-industrial garments, controlling the supply chain from raw material to final product. In addition, it enables energy savings and a reduced carbon footprint due to the reduction of shipments.

Based in Palín, Novafiber is a leading company in Guatemala for producing nonwovens from post-industrial textile waste for both the local market and export.

When the nonwoven industry meets at the leading trade fair INDEX in Geneva from 18 to 21 April, Mahlo GmbH + Co KG awaits trade visitors from all over the world to inform them about the right measurement technology enabling more efficient and high-quality production of nonwovens.

With a wide range of sensors, different measuring techniques and the corresponding measuring bridges, practically all tasks regarding the control of basis weight, moisture, thickness, fibre content, and air permeability can be solved in a cost-efficient and practical way.

As an example, Wulbeck mentions spunlace products. They mainly consist of fibres such as cotton, PE, PET or rayon. They absorb light in the near-infrared range. Water and all other materials have different spectral ranges and can thus be distinguished. The near-infrared sensor Infrascope NIR determines the moisture content and the basis weight of different materials by attenuating the light in certain wavelengths. Due to its very high spectral resolution, the sensor can distinguish between components with very similar but not identical IR absorption and achieves high measurement accuracy. "Up to 0.05 g/m2 of the respective coating weight is possible," says Wulbeck.

"We want to support manufacturers in optimising their production processes and thus also the end product," says Matthias Wulbeck, Mahlo product manager for QCS. Because, like many other industries, the nonwoven sector is struggling with challenges such as rising prices for energy and raw materials, long delivery times and uncertain supply chains. In order to continue to produce economically and on time, it is therefore necessary to save resources and avoid faulty production as well as unnecessary process times. "Our Qualiscan QMS measurement and control system helps to do just that."

Indorama Ventures Public Company Limited (IVL) and technology specialist Polymateria Limited have signed an exclusive 10-year partnership to help household brands bring biodegradable nonwoven hygiene products to the market through biotransformation technology.

This collaboration provides a new solution for dealing with essential items like facemasks and wipes once they have been used, ensuring they can return safely to nature without leaving behind any microplastics or toxic residue. It is specifically designed to tackle plastic leaking into the environment as unmanaged waste, meaning it is neither collected for landfill nor recycled. Given that most of the plastic in our oceans originates as unmanaged waste on land, addressing the unmanaged waste challenge is key.

IVL’s right to use Polymateria’s unique biotransformation technology for nonwovens supports application in non-virgin resin recycling while providing a solution for ‘fugitive’ used articles, especially those items that end up in the natural environment. This biotransformation process involves the plastic transforming into a bioavailable wax in the open terrestrial environment, whereupon the wax is fully consumed by bacteria, microbes and fungi, leaving just carbon dioxide, water, and biomass. The pulp component is inherently biodegradable under similar conditions.

Nonwovens made by IVL using Polymateria’s technology have been independently tested against, and meet the criteria in, the BSI PAS 9017 standard for the biodegradation of polyolefins in an open-air terrestrial environment published by the British Standards Institution in October 2020. This standard and/or its criteria – the first in the world to ensure plastic can biotransform in the open terrestrial environment without creating any microplastics – is being adopted around the world including in India, Malaysia, the Philippines and Hungary.

INDEX, a leading nonwovens exhibition, will take place in Geneva. About 90 Italian exhibitors will be present at this edition, including over 40 machinery manufacturers. As in past editions, ITA – Italian Trade Agengy, in cooperation with ACIMIT, the Association of Italian Textile Machinery Manufacturers, has organized an exhibition space reserved for companies manufacturing machinery for the sector. There will be 12 exhibiting companies in the Italian pavilion. Of these, the ACIMIT members are: Bematic, Bombi, Bonino, Dell’Orco & Villani, Ferraro, Loptex, Ommi, Rf Systems, Texera, Zappa Macchine. Other ACIMIT member companies will exhibit fair with their own booths.

The nonwovens sector has grown significantly in recent years. According to EDANA, the association grouping European companies operating in the sector, after the impressive growth in the previous year, the production volume of nonwovens grew by 2% in 2021, exceeding 3 million tonnes.

“The growth in nonwovens production has also driven the demand of machinery for nonwovens, comments Alessandro Zucchi, president of ACIMIT. The Italian technological supply has consequently expanded. At the 2023 INDEX edition, the presence of a significant number of Italian machinery manufacturers testifies their desire to play a leading role also in the production of machinery for nonwovens”.

The trend of Italian exports testifies the strong increase in production of nonwovens machinery. Indeed in 2021 Italian sales abroad reached a value of 102 million euro (+77% over the previous year) and in the first nine months of 2022, the value of Italian exports stood at 92 million euro.

The American subsidiary of the Swiss Oerlikon Group, Oerlikon Textile Inc., is expanding and moving into new, modern premises tailored to future needs just a few kilometers away from its previous location in Charlotte, North Carolina. A new service center for the polymer processing industry will be created on approximately 4500 m² of office and commercial space latest by the middle of this year.
Oerlikon expands service offering for customers in the USA

"We are the preferred technology partner in the field of man-made fiber production in the USA and not only want to remain so, but also to further expand our services for our customers. However, the previous premises no longer offered any opportunities for expansion," explains Chip Hartzog, President of Oerlikon Textile Inc., the logical step.

All processes will be optimized in the new buildings. Incoming goods, warehouse and dispatch will be merged, inventory control will be strengthened. On top, the range of services in the repair area will be expanded. "In addition to our services in the area of filament and carpet yarn systems, we will also be able to offer our customers repair services for staple fiber components such as crimpers or nonwoven systems in the future," says Chip Hartzog. This will further strengthen the market position for the Oerlikon Barmag, Oerlikon Neumag and Oerlikon Nonwoven brands.

Oerlikon Textile Inc. has been active in the manmade fibers business in the USA for over 55 years. In addition to the sale of Staple Fiber, BCF, IDY, POY, FDY and texturing plants, the product portfolio also includes upgrades and modernization of old plants, service and training offers as well as repair services and spare parts supplies.