Aus der Branche

ACG Kinna Automatic and ACG Nyström – members of TMAS, the Swedish textile machinery association – have delivered the first microfactory for the production of fully finished filter bags to an international filtration industry customer, in cooperation with JUKI Central Europe.

The microfactory’s configuration is based on two separate interconnecting modules – the Smart Filter Line (SFL) and the Filtermaster 2.0. The SFL handles the fabric feeding from rolls and its folding prior to seam construction, which can either be by automatic sewing, welding or with sewing and taping, depending on specifications. Very rapid changeover of the modular seaming methods can be achieved during product changes. The specific size of the now fully-tubular fabric is then precisely cut to size for each individual unit and further folded ready to be fed into the Filtermaster 2.0. The Filtermaster 2.0 then automatically attaches the reinforcement, bottom and snap rings onto the filter tube with a second Juki sewing head on a robotic arm, to form the fully finished filter bag ready for packaging.

Filter bags are employed in a wide range of industrial processes and while they may be largely under the radar as products, they represent a pretty significant percentage of overall technical textiles production.
They are used in foundries, smelters, incinerators, asphalt plants and energy production plants. Other key manufacturing fields – often where dust is generated – include the production of timber, textiles, composites, waste handling and minerals, in addition to chemicals, food production, pharmaceuticals, electronics and agriculture.

As a further example of the scale of the industry and the high volumes of fabrics involved, one supplier has delivered a single order of 30,000 filter bags to be used for flue gas cleaning at a European power plant. The bags can also be anywhere up to twelve metres in length and frequently have to be replaced.

In the fourth quarter of 2023 Italian textile machinery orders index, drawn up by the Economics Department of ACIMIT, the Association of Italian Textile Machinery Manufacturers, appears to be stationary compared to data recorded for the same period in 2022. In terms of absolute value, the index stood at 82.4 points (basis: 2015=100).

This is the result of an upswing in orders from foreign markets, counterbalanced by declining orders on the domestic front. While orders in Italy decreased at 18% rate, a 4% increase was observed abroad. The absolute value of the index on foreign markets amounted to 77.9 points, whereas it came in at 126.2 points domestically. Overall for the fourth quarter, the average order backlog yielded 3.7 months of assured production.

For the whole 2023 year, the index declined 25% overall compared to the 2022 average (absolute index of 82.4). On the home front however, the index dropped 24% (absolute index of 124.5), while slipping 25% abroad (absolute index of 78.4).
 
ACIMIT president Marco Salvadè commented: "The orders index for October – December 2023, as elaborated by our Economics Department, confirms an intake of orders that is still weak, with a negative trend in demand for machinery that is ongoing for the domestic market."

Nonetheless, the orders index abroad shows a slight increase. We estimate that the global geopolitical context is still a source of concern,” continued Salvadè, specifying that, “For the first nine months of 2023, Italian exports on major global markets (i.e. China, Turkey, India and the United States of America), confirm a widespread decline. However, some positive signs emerged in the fourth quarter of last year, as reflected by the latest orders index. For 2024 we expect a consolidation of this trend reversal."

West Yorkshire is to have a first-of-its-kind apprenticeship training course for textile engineering technicians, reflecting a resurgence in the industry locally, and more generally in the UK.

Calderdale College has partnered with the Textile Centre of Excellence (TCoE) and the British Textile Machinery Association (BTMA) to develop the bespoke Level 3 apprenticeship course which will start in September 2023.

Engineering Technician apprentices at Calderdale College will receive training from the TCoE, helping them to develop the engineering maintenance skills required to close the skills gap in West Yorkshire’s textile industry.

While the region has been a flourishing hub for textile excellence since the 19th century and is being revitalised through digitalization and the localisation of supply chains, its success is currently being hindered by an ageing workforce and high staff turnover.

Through adapting the engineering training at Calderdale College to address the current requirements of the textile industry, the unique new course will ensure the passing on of vital know-how and good practice aligned with the new skills demanded by Industry 4.0 and automation.

Collaborative Apprenticeships
Calderdale College has developed the programme over a two-year period through close collaboration with the TCoE and the BTMA, as well as through consultation with British heritage weaver AW Hainsworth and a number of other local textile companies.

The course launch follows on closely from the success of the Collaborative Apprenticeships project launched in 2022 at Calderdale College. To date, this has seen the college engage with over 100 local employers on the benefits of increasing the quantity and improving the quality of the apprenticeships that they offer, as well as encouraging others to introduce apprenticeships for the first time.

“Over the years, we’ve seen how beneficial apprenticeships can be for several sectors, particularly in terms of helping businesses to retain staff and ensuring that they have a steady flow of skilled workers coming in,” said Claire Williams, head of employer engagement at Calderdale College. “Having identified that employers in the textile manufacturing industry were struggling to find apprenticeship training that was designed around their needs, we knew that alongside employers and our partners, we needed to satisfy this critical gap in the market. We hope that this programme will act as a leading example for the rest of the industry to follow.”

High-performance yarns now offer almost unlimited possibilities for replacing traditional raw materials in a vast range of technical applications. Often tailor-made, these filament yarns go way beyond the conventional idea of ‘textiles’ – finding new uses in sectors such as automotive, aviation, maritime, medical and construction, among many others.

Technical textiles are everywhere in our daily lives today, even if we may not always realize it. Some are in more obviously textile products, from sewing threads to artificial turf. But then, take cars as an example: modern vehicles are stuffed with parts made from sophisticated yarns. It’s common for producers of automotive parts now to send template material and requirement lists to Swiss Textile Machinery members, trusting their expertise and experience. Members operate development and testing centers with latest machine installations, where their experts devise customized solutions, as well as calling on the pure innovative spirit which is part of their DNA.

At the extremes
Technology drives applications beyond our current imagining in the case of Heberlein air splicers. Developed for a wide range of uses with high-strength technical fibers, they have no problems splicing aramid fibers up to 16’100 dtex, carbon up to 30’000 dtex, Dyneema up to 5’500 dtex, and glass up to 4’800 tex. Using compressed air, the splicers produce a tear-resistant, homogeneous splice of material without interfering knots.

Retech has the technology to achieve specifications for filament yarns, drawing and stretching fibers to perfection. Top heated godet rolls – many customized – are developed for high-performance fibers. Temperatures up to 400 °C can be achieved. Combining the right settings and wide speed ranges for each specific process results in unique end-products.

Fabric producers of high-end applications must avoid any quality risk. Yarn producers are well aware of this responsibility, so they use precision package winders for technical yarns, developed by Rieter’s subsidiary SSM. Taking yarns from ring twisting bobbins, its specialist finish winders can produce coarse-count technical yarns up to 50’000 dtex, offering a new level of flexibility and winding quality.

Lifestyle essentials
At first glance, motorists might fail to notice many of the technical yarns ‘hidden’ inside their cars. These products have functions such as providing stability with hardly any weight, or absorbing tensile forces at defined elongation. This kind of controlled elongation behaviour, for example, arises from the choice of textile material and the special construction of the yarns used.

Such specifications make twisting and cabling machines essential for the automotive industry. Saurer offers machines for the production of technical yarns made from a variety of feed materials in a very wide yarn count range. They are needed for vehicle products such as tire carcasses, toothed engine belts, seat belts, airbags and lorry tarpaulins.

Technical yarns also play a surprising role in our mobile devices. Tapping, scrolling and swiping are second nature for billions, with our phones and a plethora of other lifestyle essentials. Yet, how many people would know that the touch-sensitivity we take for granted on these screens is largely made possible by twisted glass fibers. Bräcker, part of Rieter’s components business, offers a selection of vertical sinter metal rings and nylon travelers for glass fiber twisting, so that mills can achieve high levels of productivity and quality.

Future unlimited
Automotive and communication technology are already important industries for Swiss Textile Machinery members, along with well-known technical textiles markets in sectors such as medical, transport and construction. Smart-wear is already noted as a field with significant potential. Naturally, members are constantly investigating other possibilities. Swiss textile machinery is already applied in energy (batteries), and plastics.

The Swiss Textile Machinery Pavilion will be at the Techtextil exhibition in Frankfurt, Germany, taking place from 21 to 24 June 2022.

Das türkische Unternehmen ARIKAN Mensucat Industry and Trade Inc. wurde 1993 gegründet und hat seinen Sitz in Kahramanmaraş, einer der südlichsten Städte des Landes. Heute beschäftigt das Familienunternehmen rund 1.500 Mitarbeiter und veredelt täglich ca. 55 Tonnen Strickware. Neben vielen namhaften türkischen Modeherstellern beliefert ARIKAN auch internationale Hersteller in Europa, Russland, den Golfstaaten und anderen führenden internationalen Märkten.

Der deutsche Maschinenbauer BRÜCKNER unterstützte das türkische Unternehmen von Anfang an. Im Jahr 2014 lieferte BRÜCKNER drei Spannrahmen zur Veredlung der Maschenware. Zwei weitere Anlagen folgten in 2016. Seit Jahrzehnten ist BRÜCKNER in der Veredlung und Ausrüstung von Maschenware spezialisiert. Vor allem bei sehr feiner und elastischer Ware sind spezielle Anlagenkonfigurationen und technologisches Know-how notwendig, um ein qualitativ hochwertiges Endprodukt herstellen zu können. Während des Trocknungs- und Fixierprozesses ist z.B. eine äußerst akkurate und gleichmäßige Temperaturverteilung über die gesamte Länge und Breite des Trockners unerlässlich. Im BRÜCKNER Spannrahmen gelingt das unter anderem durch die Konterung der Thermozonen alle 1,5 Meter sowie das bewährte split-flow Belüftungssystem.

Die Maschinenbediener bei ARIKAN schätzen die einfache Bedienung der Anlagen. Die Visualisierung ist intuitiv aufgebaut und bietet verschiedene Hilfssysteme für einen optimierten Produktionsprozess. Durch wenige Änderungen der Maschinenparameter können deutliche Energieeinsparungen erzielt werden.

Das Management bei ARIKAN misst der Energieeinsparung, speziell in der Veredlung, große Bedeutung bei. Der Trocknungsprozess ist einer der energieintensivsten in der gesamten Prozesskette, deshalb können hier die größten Einsparungen erfolgen. Diese wirken sich direkt auf die Herstellungskosten der Textilien und somit auf die Wettbewerbsfähigkeit am Markt aus. Gespräche für eine weitere BRÜCKNER Anlage werden geführt, die als Feature eine kombinierte Beheizung für den Trockner vorsehen. Bei vielen Kunden – und so auch bei ARIKAN in der Türkei – steht z.B. Dampfenergie frei oder sehr günstig zur Verfügung. Mit der von BRÜCKNER entwickelten Kombi-Heizung ist es möglich, diese Dampfenergie zum Aufwärmen des Trockners zu nutzen und somit signifikante Einsparungen zu erzielen. Reicht der vorhandene Dampf für einen laufenden Prozess nicht aus, wird automatisch auf Gasbeheizung umgestellt. Diese Betriebsweise wirkt sich nicht nur auf die Energiekosten aus, sondern leistet auch einen Beitrag zum Umweltschutz.