From the Sector

• Reactive dyes for water and energy saving dye processes with significantly shortened process time

BEZAKTIV ONE covers a broad color spectrum with tinctorial very strong dyes. This enables a cost-efficient dye process with significantly less dye and salt. The excellent wash-off behavior allows short rinse cycles at lower temperatures and therefore offers further ecological and economic advantages. The dyes are particularly suitable for durable textiles due to their good multiple wash fastness.

Cellulosic fibers are often dyed with reactive dyes, as these are commercially available in a wide range of colors that result in dyeings with high wash fastness. However, reactive dyeings require a lot of water due to the necessary rinsing processes. Due to increased ecological requirements, the development of energy and water saving processes is not just a trend, but rather a core prerequisite for new dyes.

A minimal number of rinsing baths and generally lower temperatures for dye exhaust, rinsing and soaping contribute to an overall efficient water and energy saving dyeing processes.

BEZAKTIV ONE dyes can be dyed, rinsed and soaped between 40 and 60 °C. Therefore, the BEZAKTIV ONE exhaust dyeing process is significantly shorter compared to conventional reactive dyeing processes, where temperatures between 60 and 98 °C are required. This advantage means savings in process time and higher productivity for the textile dyer.

The advantages become particularly clear when dyeing medium to dark shades with the BEZAKTIV ONE process. Due to the high fixation level in combination with good color build-up dark shades can be matched with lower dye concentrations of BEZAKTIV ONE than with conventional bifunctional reactive dyes. The addition of the auxiliary COTOBLANC SEL in the second soap bath has an additional positive effect, so that a washing process with low water and energy consumption generates excellent wet fastness properties on the textile.

With the goal of making recycling of lightweight, high-volume fiber and flake recyclate much more economical and, in some cases even possible, Coperion has developed a new version of its ZS-B side feeder. Using the innovative ZS-B MEGAfeed, plastic recyclate with a bulk density under 200 kg/m³, long considered intake-limited and thus not worth recycling, can be reliably fed in large quantities into Coperion’s ZSK twin screw extruder and be concurrently recycled and compounded.

The ZS-B side feeder’s novel design makes it possible to feed very high rates of fiber and flakes, such as PA, PE, PET, and PP. As a result, the ZSK twin screw extruder’s high capacity can be fully exploited when the ZS-B MEGAfeed is used. Very high throughputs in both mechanical and chemical recycling of post-industrial and post-consumer waste are achieved.

Increased Throughput in Numbers
With a ZSK 58 Mc18 twin screw extruder, the throughput increase and thus the potential of the new ZS-B MEGAfeed becomes very clear. When recycling PA fibers with a bulk density of ~40-50 kg/m3, throughputs of 70 kg/h were previously achieved using conventional equipment. When the PA fibers were fed into the ZSK extruder using the ZS-B MEGAfeed, throughputs increased about fourteenfold to 1,000 kg/h. Similar results were achieved recycling carbon fibers with a bulk density of ~50-70 kg/m3; in this case, throughputs increased from 50 kg/h to 2,500 kg/h using the ZS-B MEGAfeed. When recycling PCR (Post-Consumer Recycled) flakes, throughputs increased from 50 kg/h to 700 kg/h, and from 80 kg/h to 1,300 kg/h with multilayer film flakes.

Key to Economical Recycling of A Wide Variety of Plastics
Plastics previously considered not recyclable are becoming a valuable raw material using the new Coperion ZS-B MEGAfeed. For example, PCR flakes or recyclate from carbon fiber-reinforced plastics can now be fed into the ZSK extruder at high feed rates and recycled economically.

In the case of mechanical upcycling, upstream processes necessary for compounding, such as compacting, melting and agglomeration, are completely eliminated using the ZS-B MEGAfeed technology. In this recycling process, flakes and fibers can be fed directly into the ZSK extruder, where they are melted, compounded, devolatilized, and filtered in a single step. In so doing, both investment costs and energy consumption drop. The production process becomes significantly more efficient. Moreover, the thermal product stress is reduced and recyclate quality increases.

Even when recycling PET, the feed rate is no longer a limiting factor. With the ZS-B MEGAfeed, PET flakes and fibers can be fed into the ZSK twin screw extruder in large quantities with no pre-drying or crystallizing, where they can be processed with the highest degree of profitability.

The ZS-B MEGAfeed can also feed large quantities of post-consumer waste, adding appreciable value to the chemical recycling process with the ZSKs. ZSK throughput rates are very high with the ZS-B MEGAfeed. Preheating of the recyclate via mechanical energy input of the twin screws thus becomes even more economical for further processing in the reactor.

Existing Coperion extruders can be retrofitted with ZS-B MEGAfeed technology to greatly expand their spectrum of applications and increase their throughput rates.

• The “new normal” by Südwolle: responsible, seasonless and high performance

The concept of seasonality in the F/W 2023/24 collection is increasingly vague, in favour of more functional categories in terms of performance, sustainability, innovative content and style.

Yarns are predominantly pure wool or blends, corresponding with the new concept of “dressing well” which is gaining ground among consumers – an individual style that promotes wellbeing at various times of the day, a fluid, personal idea of elegance, that fits daily activities with ease.

The new formal replaces the traditional suit with “smart casual” jackets and trousers -comfortable, and carefully cut, they feature quality materials that guarantee wearability as well as durability. Focus on these factors makes for more informed and less impulse buying.

The renewed interest in heritage is met with Südwolle's wool know-how and its basic essentials, updated to make them more sustainable by choosing certified fibres and chlorine-free anti-shrink treatments, for products with a longer lifespan thanks to domestic washing at low temperatures.

Sustainable innovation attentive to performance and durability goes hand in hand with the selection of earth-friendly recycled, recyclable and traceable materials blended with natural fibres.

Overview of the collection
The words inspiring the new collection are: sustainable, responsible, natural, recycled and high-performance.

A leading position goes to the OTW® line of weaving yarns made with Omega Twist® technology, developed and patented by Südwolle Group, which gives yarns enhanced performances in terms of reduced pilling, greater elasticity, strength and durability.

Espresso TEX Nm 48/2 (100% untreated wool,20.5μ) was created to value the authentic naturalness of wool. Made with undyed, untreated merino wool, it is a twisted yarn for weaving, ideal, for example, for flannel suits and jacket. It is available in 4 shades of brown obtained by mixing different percentages of untreated raw wool and undyed, naturally brown wool.
Eolo Nm 24/2 (100% wool 20.5 µ) is an example of circular production and reuse of recycled wool within the Karma project. Starting with in-house pre-and post-production waste, a partly carded, partly combed, product is created at Südwolle Group facilities where this type of process can be carried out.

Rhein GOTSNm 64/1 and Nm 64/2 (100% wool 19.5 µ) is the new pure woolyarn with GOTS –Global Organic Textile Standard certification, which certifies its organic provenance. The same traceable origin applies to Lerici GOTS X-COMPACT®Nm 60/1 (70% GOTS certified wool 19.5μ, 30% Schappe Mulberry silk), a glossy yarn with reduced pilling effect for improved anti-abrasion performance, obtained with X-COMPACT® spinning technology.

Performance paired with reduced energy consumption is the added value of SRP ClarkNm 60/2 (48% wool 23.5μ, 44% cationic polyester, 8% Donegal viscose), also available in a stretch version. The cationic polyester can be dyed blended with the wool, making double dying unnecessary and so saving on water and energy consumption. The addition of pre-dyed red, green or brown Donegal viscose to the blend creates a fluid look enhanced with slubbing and micro-nep effect.

Rosvic Nm 40/2 (98% wool 19.5μ, 2% Lycra®44 dtex) is a twisted yarn with Basolan treatment for comfort fabrics. It has a slightly textured surface with a contrasting or tone on tone micro mouliné pattern.

Key players among the circular knitting and hosiery yarns are Basak Nm 80/1(80% wool TEC. 20% polyamide 2.2 dtex), OTW® Barone GRS Nm 60/2(60% wool 23.5 µ TEC, 40% RENU™ recycled cationic polyester 2.2 dtex) and OTW®Concorde Nm 88/2(100% wool 19.3 µ TEC), available in the new colour cards.

Over the past 14 days, the wholesale cost of natural gas in Germany has risen by more than 50%. This increase presents an extraordinary challenge for industry, and there is no sign of support or intervention from the Government. Indeed, recent statements are destined to provoke a worsening of the situation.

Kelheim Fibres is entirely dependent on natural gas for the generation of electrical energy and steam and has no viable short-term alternatives. In addition, the raw materials used by the company often consume high levels of energy in their production and are also increasing significantly in cost. These increases in cost jeopardise the future of the business if they cannot be passed on though the supply chain.

Kelheim Fibres is calling on the Government of Germany to take immediate steps to mitigate the impact of the cost increases for natural gas and is committed to work to implement alternative sources of energy in the medium term.

In parallel, the disruption to global logistic networks that has been seen throughout 2021 is now expected to continue throughout 2022. Massive increases in shipping rates – in some cases in excess of 80% – are being imposed without notice and with no opportunity for negotiation. These costs must also be passed on though the supply chain if businesses are to remain viable.

To address these issues, Kelheim Fibres is implementing the following measures with immediate effect:

• The increased cost of energy and freight will be passed on in prices to customers at the soonest opportunity;
• If necessary, changes or adjustments to existing agreements will be negotiated to reflect the increased cost levels;
• If the necessary increase in fibre prices cannot be secured, cuts to production will be implemented with the objective of minimising losses until the cost increases can be mitigated.

As the drivers for the increases in natural gas prices appear to be temporary in nature, we will maintain any price adjustments under review and pass on any relief to customers.

Craig Barker, CEO of Kelheim Fibres, describes the current situation as critical. “The cost increases we are facing are unprecedented and call for swift and decisive action. We are determined to take the necessary steps to preserve the future of our business and provide security of supply for our customers. At the same time, we are relying on the support of our customers to help us conquer the challenges our business is facing.”

10 years after the installation of the photovoltaic plant in the production units in the Biellese region, the Marchi & Fildi Group takes stock of the operation and publishes the data on energy produced, consumed, and fed back into the grid.

The photovoltaic plant owned by the Group is made up of 11,385 modules divided between the three facilities in Biella (Production), Cerrione (Dyeing mill) and Verrone (Logistics), which in total cover a surface of 16,515 sq.m.

The balance to be drawn from these 10 years is a positive one: in total 22,974,828 kWh have been produced, of which 7,292,027 kWh have been used in company activities, with a saving in energy costs of approximately €1m over 10 years.  

The energy kWh produced and not used by the company was fed back into the grid and corresponds to the average annual consumption of around 4630 families.*

The Marchi & Fildi Group has always been committed to rationalising electric energy consumption with the aim of contributing towards an eco-sustainable development without compromising the rate of production and the ability to grow. In addition to producing its own electric energy, over the years, the company has also achieved an increasing number of Energy Efficiency Titles (TEE), otherwise known as white certificates. In 2021, 138 TEEs have been awarded as a result of such interventions as the introduction of LED lighting and the optimisation of the production processes which, while still as efficient as before, permit the company to reduce the electric energy consumption of the machinery.

*In the meter class for the range of 3kW to 4.5 kW, the average consumption for residential properties is the equivalent of 3,382 kWh (source: Arera Relazione annual state of services for the year 2020). The calculations are the results of an internal study conducted by the Marchi & Fildi Group.

Notus Composites (UAE), the award-winning producer of epoxy prepreg materials, announces the latest addition to its high-performance epoxy range with the launch of its new NE7 low temperature curing prepreg system. The Notus NE7 formulation allows composite manufacturers to cure components at temperatures as low as 70˚C, reducing energy consumption and enabling more cost-effective tooling options.

Notus Composites has developed the new NE7 prepreg systems for applications across the Marine, Architecture, Industrial and Wind Energy sectors, with the novel low temperature curing chemistry delivery significant cost benefits. Existing prepreg manufacturers can now use more cost-effective composite tooling, with new prepreg users able to switch easily from existing infusion or wet laminating processes without creating expensive new high temperature tooling.

NE7 prepregs can be cured at temperatures as low as 70˚C, with the standard cure cycle being 12 hours at 70˚C, matching the typical cycle time for an infused part with a component Tg of 85˚C. NE7 materials have a good outlife of 30 days at 20˚C and are available in all prepreg and Notus single sided N1-Preg formats with unidirectional, multiaxial, and woven reinforcements. NE7 can also be supplied as a resin film.

Notus has recently supplied NE7 low temperature prepregs to Dubai based Aeolos Composites for the production of their new Aeolos P30 racing yacht. The P30 is a futuristic new craft created by top German sailor and designer, Hans Genthe, with a super light carbon fibre construction and large sail area that promises spectacular on the water performance for a thirty foot yacht. Notus delivered a range NE7 prepregs for the build, including woven, multiaxial, and unidirectional carbon fibre reinforcements as well as adhesive films for core bonding.

GREENBOATS, Sicomin and Bcomp are nominated as finalists for the JEC Innovation Awards 2021. The three project partners have been selected as finalists in the awards’ Renewable Energy category for their innovative Green Nacelle – the first offshore nacelle manufactured with natural fibre composites (NFC).

The Green Nacelle was designed by NFC innovators GREENBOATS, who were also responsible for the structural engineering, manufacturing and assembly of the nacelle.  By incorporating Bcomp’s ampliTex™ flax reinforcements, FSC certified balsa wood cores and bio-based resins, the Green Nacelle’s NFC construction saves approximately 60% CO2 equivalent and reduces the energy consumption by over 50% compared to a nacelle made with existing GFRP technology.

In addition to the lower CO2 footprint, the natural fibre composite structure also introduces viable options for the end of the nacelles’ life unlike traditional GFRP structures - an issue of increasing concern for the wind energy sector that presents a great opportunity for natural fibre composites to bring a sustainable change to this market.

Sicomin, the formulator and supplier of the leading range of GreenPoxy bio-based epoxy resin systems, supplied its DNV GL approved InfuGreen 810 resin system that was used to infuse the Green Nacelle’s main structural sandwich panels, as well as providing intumescent FR gelcoats, bio-based laminating resins and UV resistant clear coatings for the groundbreaking new nacelle.  Materials, as well as on-site technical support, were delivered by Sicomin’s German distributor TIME OUT Composites.

The winners of the awards will be announced during JEC Connect which will be held on the 1st and 2nd June 2021.