From the Sector

From April 25^th to 27^th, 2023, the Institute of Textile Machinery and High Performance Material Technology (ITM) of TU Dresden will be exhibiting at the pavilion SAXONY! at JEC World 2023.

The ITM will provide a comprehensive overview of its current research in the field of machine and product development along the entire textile process chain.

The upcoming JEC 2023 exhibition will highlight innovative Customised Connective Cores (CCC), which are custom-made core-insert structures additively manufactured using cellular metal and a form-fit integrated insert. These CCCs can be seamless integrated either as patches or as full-surface core material into lightweight panels, offering significantly improved load-bearing behavior (especially 4 times the load-bearing capacity and fail-safe behavior) compared to existing technologies. This breakthrough opens up new possibilities for fastening lightweight panels.

Another highlight at the exhibition is the repair process for fibre-reinforced composites (FRP) developed at the ITM. Instead of mechanically grinding the damaged area, the matrix in the repair area is locally dissolved using a UV-rays-induced depolymerisation process. Damaged fibres can thus be replaced by a customized repair patch. Free yarn ends on the textile repair patches are spliced with the UV-exposed yarn ends in the repair area using an adapted splicing process. In this way, a very clean, simplified and mechanically improved repair area can be achieved compared to the state of the art.

The diverse possibilities offered by the structure and process simulation of textile high-performance materials and textile manufacturing processes will also be presented. By means of multi-scale modelling and simulation, a profound understanding of materials and processes is achieved at the ITM. Finite element models on the micro, meso and macro scale have been developed and validated for this purpose. Examples from current ITM research projects demonstrate the various possibilities and areas of application of modern simulation methods in the field of textile technology.

Moreover, an innovative process for the integral manufacturing of 3D rib-stiffened preforms with complexly arranged stiffeners in 0°, 90° and ± 45° orientation was developed and successfully implemented at the ITM. Due to the process-integrated structure fixation and the continuous fibre reinforcement between shell and rib structure, the 3D preforms are perfectly suited for the production of highly load-bearing FRP components with increased bending stiffness, which will be exhibited at JEC. Hence, the lightweight construction potential of high-performance fibres can be fully exploited.

A successfully established development are partially flowable 2D textile reinforcement fabrics that are continuously manufactured in one single process step. For this purpose, the entire process chain was developed at the ITM, which allows a cost-effective and high-volume production of load-bearing thermoplastic 3D FRP components with continuous fibre reinforcement between shell and stiffeners.

At JEC 2023, the ITM will also present a partially embedded textile latice girder as reinforcement for carbon concrete applications, which was produced by means of an innovative textile manufacturing process based on the multiaxial warp knitting technology. Through the development of a customized warp insertion, manipulation and take-off system as well as appropriate shaping methods, it is now possible to produce tailored textile semi-finished products, e.g. for use in wall and ceiling panels. These textile latice girders represent a resource-saving alternative to conventional steel girders due to the reduced among of concrete required and the additional cavity for media and cable guidance.

The integration of textile actuators and sensors in FRP provides structures with additional functionalities. The research and application of such interactive FRP with different matrix materials (e.g. with thermoset, elastomer or concrete matrix systems) for structural health monitoring or adaptive systems is one of the key research areas of the ITM.

Moreover, the development and implementation of innovative yarn constructions based on recycled high-performance fibres (e.g. rCF, rGF, rAR) for sustainable FRPs is successfully promoted at ITM. By use of a special carding machine, recycled fibres are opened up, separated and joined to form a wide, uniform ribbon. Subsequently, innovative hybrid yarn constructions made of evenly mixed recycled high-performance and thermoplastic fibres with variable fibre volume fractions can be manufactured by means of various spinning technologies. Selected yarn constructions and components will be showcased at JEC.

Alchemie Technology is the latest company to join the British Textile Machinery Association (BTMA), as all of the organisation’s members gear up to showcase an array of new innovations at ITMA 2023 in Milan from June 8-14 this year.

Cambridge-headquartered Alchemie is the inventor of two technologies – EndeavourTM and NovaraTM.

The Endeavour digital dyeing system produces no wastewater and reduces water consumption by up to 95% compared to traditional dyeing. The virtually waterless process delivers dyed fabric with high colour consistency and colour fastness and does not require post dyeing washing steps which leads to an energy reduction up to 85%. It can deliver any colour shade required and enables on-demand digital colour changeovers in any run length, from a few metres to several kilometres.

Similar energy savings can be achieved with the Novara precision finishing system which utilises a nozzle array to deliver finishing chemistry with millimetre resolution. Finishing chemistries penetrate deeply into the fabric due to the combination of high velocity liquid jetting and precisely-controlled vacuum and textile finishes are applied only where needed, reducing chemistry usage and enabling multi-functionality.

In the past year, Alchemie, backed by Swedish fashion giant H&M, has established a first demonstration hub at customer JSRTEX in Taiwan. It is now progressing plans to set up further centres at customer sites around the world.

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 fourth quarter 2022 textile machinery orders index, processed by ACIMIT, the Association of Italian Textile Machinery Manufacturers, showed a sharp 35% decline compared to the period from October to December 2021. In absolute value, the index stood at 83.6 points (basis: 2015=100).

Orders took a 34% drop on the domestic market, while the foreign index was down fully 37%. In Italy, the index’s absolute value came in at 155.4 points, whereas on foreign markets the value stood at 75.8 points.

On annual basis, the orders index marked an 18% decrease and an absolute value of 110.4 points. The drop in orders abroad was 17%, while orders collected in Italy were 28% lower than the figures drawn up in 2021.

ACIMIT president Alessandro Zucchi stated that, “The orders index data for the fourth quarter confirms what had already been observed in the previous quarters in 2022. After a sharp increase in 2021, this decrease in orders for the past year is physiological. Furthermore, the ongoing war between Russia and Ukraine, with its related consequences on daily business and trade, and a macroeconomic framework in which uncertainty prevails, have further negatively affected the orders intake.”

Data for the last quarter does not suggest a reverse in the negative trend for the first months of 2023. Declining energy prices and inflation, although still high, also declining slightly are, however, signs of a light improvement in the business of companies in the sector as well. “We need to look to the current year with optimism,” continued ACIMIT president. “Our member companies are already focusing on ITMA, the upcoming global textile machinery industry trade fair, that will be held from June 8-14 in Milan.” “I am confident that ITMA Milan can represent an opportunity for further development of the Italian textile machinery sector,” concluded Zucchi. “The technological innovations that our manufacturers will bring to the trade show will meet the textile industry’s need to be increasingly sustainable, both environmentally and economically.”

Over the past three years, a dedicated AI development team at BTMA member Shelton Vision has been developing tailored machine learning solutions for the textiles industry.

The aim has been to elevate the detection process and the accuracy of naming and grading subtle defects in textiles, in real time within production environments.

“Big Data ‘off-the-shelf’ systems such as those behind technolgies like facial recognition and Google Maps involve reading many thousands of single images each second and simply take too long to accumulate sufficient data for what’s required in this specific case,” says Shelton Vision CEO and Managing Director Mark Shelton. “A feature of the textile industry is that in many sectors, the product range changes several times within a year and it is not uncommon to have to inspect hundreds, if not thousands of different styles in a year based on precise settings.”

In terms of defect types, he adds, there may typically be over 100 that need to be accurately detected, classified (named) and graded in real time.

“Added to this is the need to ‘filter out’ the random occurrence of ‘non defects’, such as loose threads, lint and dust on the surface – the number of which can be higher than actual defects – and it is clear that a bespoke system is required.”
The development team has consequently established metadata for identifying defect properties, enabling the successful identification of faults from a much smaller number of images.

“The system employs a unique combination of machine learning for automated style training and novel algorithms for defect detection, to provide high quality images for the AI real time defect classification and grading software,” Shelton explains. “Due to the inherent variation in fabric features – raw materials, construction, texture, colour and finishes, as well as the differing product quality standards in value chains and the regional variations in what defects are called – our AI engine uses models built for each individual company or group of companies, or product value chain.”

The AI models are constructed so that the user operatives can populate them with their own data produced by the vision system or by obtaining defect images from another imaging source (eg a mobile phone camera).  

The occurrence of defects is sporadic and many defect types occur infrequently, although when they do, they can have severe consequences. These scenarios re-enforce the need for the AI engine to be quickly set up and able to operate accurately with limited data sets of typically between 30 and 50 good quality images per defect type.

A further feature is a tool enabling the user to periodically ‘clean up’ the AI data during the set up phase. This is used to resolve conflicting data and to correct mis-named images.

Generally, the highest cost component of fabric production is the raw material and in addition to finished product inspection, a cost effective use for vision systems is in process operation.

Generally, the highest cost component of fabric production is the raw material and in addition to finished product inspection, a cost effective use for vision systems is in process operation.

“There is a need for the real time detection of defects that are being created in separate processes, such as printing or coating and for real time automated systems that can accurately determine the defects and their severity and provide a reliable signal for an operative to rectify the issue, This can result in considerable savings.

Prior to Shelton introducing powerful customised machine vision and real time defect classification, the only systems available were those that required manual sifting through vast numbers of images, which included both real defects and ‘non defect’ images. The task was very often overwhelming and did not provide much benefit beyond manual fabric inspection.

• Business situation has worsened markedly but not expectations.

The 17th ITMF Global Textile Industry Survey (GTIS, formerly known as ITMF Corona-Survey) shows that on average the business situation in the global textile industry has deteriorated further in November 2022. At the same time, global business expectations in six months’ time remained in negative territory but did not get gloomier. The indicators for order intake, order backlog, and capacity utilisation rate dropped, globally.

According to the survey, the business situation in the three Asian regions and Europe remained especially poor. In North & Central America the business situation has improved again markedly. Except for the textile machinery segment that still benefits on average from a long order backlog, all other segments found themselves in negative business situations, especially fibre producers and spinners. Global business expectations have remained negative but “stabilized” around -10 percentage points (pp) since July 2022. Expectations have improved significantly in South Asia to +10pp, and Europe to -30pp. Business expectations in all segments remain negative territory with four out of seven recording improvements.

Order intake nose-dived in November, in line with weaker business situation and weaker demand, currently the biggest concern for the global textile value chain. Only companies in North & Central America registered on average a good order intake, while all other regions were faced with an unsatisfactory order situation. Except for South-East Asia and North & Central America order backlog fell. The only segments where order backlog increased were the down-stream segments garments and home textiles. Capacity utilization rate dropped in all regions in November 2022. It only increased in the textile machinery segment but fell otherwise.

“Weakening demand” is by far the biggest concern in the global textile industry, followed by the root causes of demand reduction, namely high energy and raw material prices which lead to high inflation rates. Good news is that logistical costs are not much of a concern anymore. Concerns about geopolitics on the other hand have increased again in the past two months.

BTMA member Dent Instrumentation – a specialist in contactless yarn sensors – has become an employee-owned business following the formation of a new Employee Ownership Trust (EOT).

The company, based in Colne, Lancashire, has been family owned since its founder Geoffrey Dent secured a patent for the very first contactless yarn sensor in the 1960s. It has been successfully run by his son Andrew and the family for many years.
“This deal ensures a smooth succession as well as the preservation of the company’s core family values and the Dent Instrumentation name,” said Managing Director Colin Hull. “The EOT structure will maintain the integrity of the business for years to come.”

The liability of Dent sensors makes them integral to the yarn spinning and winding processes and they have become a standard throughout the textile industry, recognised for their quality, performance and value. They are used by major manufacturers of textiles and textile machinery under either Dent or OEM machine builder brands.

Japan International Apparel Machinery & Textile Industry Trade Show (JIAM) has wrapped up four successful days of business at INTEX OSAKA. From 30 November – 3 December 2022, a total of 10,452 visitors found their way to the fairground. 150 exhibitors from 11 different countries and regions welcomed visitors with an extensive and diverse selection of products. Buyers from Bangladesh, India, Sri Lanka, South Korea, and Pakistan constituted the top five visiting countries (excluding Japan), compensating for a drop in visitors from China this year due to COVID-19 travel restrictions.

Under the theme of "It all connects at JIAM – the forefront of technology and master craftsmanship", the 2022 edition showcased apparel manufacturing solutions catered to each and every need, combining skillsets and knowledge with modern technology. At the opening ceremony, Mr Shinsuke Uchinashi, Chairman of the Japan Sewing Machinery Manufacturers Association (JASMA), commented, "In the new normal, there is growing demand for new technological advancements, productivity improvements, and greater quality control. In addition to solving these pain points, this edition’s exhibitors are also showcasing various innovations in response to automation, IoT, and networking."

A wide variety of special seminars held in Hall 4 were well received. Highlights included a skills training seminar hosted by an emeritus professor and panel discussions by leading companies in the manufacturing industry. SDGs, examples of IoT in industrial sewing machines, and upcycling initiatives were also on the agenda, with visitors gathered around the presented items taking notes.
 
The Home Sewing Zone led by three machine manufactures and JASMA held daily workshops where visitors could learn about upcycling using scraps, and take a break at the café with "cup sleeves" of their own making. Ms Kazuko Mizuochi of JASMA said, "We had a great attendance from the very first day. We were able to familiarize participants with sewing machines and also promote upcycling activities."

The next edition will take place from 27 – 30 November 2024 at INTEX OSAKA.

AVK, the Federation of Reinforced Plastics, has once again awarded its Innovation Awards to a range of companies, institutes and their partners in 2022. Three innovative composites from each of the three categories Products & Applications, Processes & Methods and Research & Science were honoured during the JEC Forum for Germany, Austria and Switzerland in Augsburg at an award ceremony on 29 November 2022. A professional jury, composed of engineers, scientists and trade journalists, presented the awards for 2022 in three categories.

List of award winners in the three categories:
Products & Applications category
First place: LAMILUX Composites GmbH, Rehau, Germany: Lamilux Sunsation® – the new standard under the sun
Second place: Carbo-Link AG, Fehraltorf, Switzerland: CL RESTRAP – Reinforcement of concrete girders using flexible, prestressed CRP tapes
Third place: Borgers SE & Co. KGaA, Bocholt, Germany: blue label by Borgers ®

Innovative Processes & Methods category
First place: BaltiCo GmbH, Hohen Luckow, Germany: Rod laying technology as an additive manufacturing process
Second place: Schmidt & Heinzmann GmbH & Co. KG, Bruchsal, Germany: Pole Position, a positioning system for polarisation imaging
Third place: NETZSCH Process Intelligence GmbH, Selb, Germany: SensXPERT, process optimisation driven by material data to increase the efficiency of thermosets and fibre composites

Research & Science category
First place: Institute for Textile Machinery and High Performance Textiles at the Technical University of Dresden: Spherically curved fibre-reinforced plastic composite components made from near-net-shape fabrics
Second place: Leibniz-Institut für Verbundwerkstoffe GmbH, Kaiserslautern, Germany: HyKoPerm – a measurement system for an industry-specific characterisation of textile impregnation behaviour
Third place: Technical University of Munich, Chair of Carbon Composites: Manufacturing processes for a tension-strut-supported pressure vessel that can be adapted to suit a given space

Monforts will be presenting its finishing technologies at the forthcoming Igatex textile machinery exhibition, which takes place from December 1-4 at the Lahore Expo Centre in Pakistan.

The importance of the textile industry to Pakistan’s economy cannot be overstated – it accounts for 60% of the country’s overall exports and some of its industry’s players are very major employers. In the year to June 2022, Pakistan’s textile exports climbed by 25% to a record value of $19.3 billion according to the country’s Bureau of Statistics, as security of deliveries – especially to Europe and the USA – worked in the country’s favour, in the light of the Covid-19 pandemic and subsequent supply chain issues. It has a key role to play in quickly getting the country back on its feet after the devastation.

Monforts customers in the regions around the country’s three biggest cities of Karachi, Lahore and Faisalbad include all of the main players in the fields of home textiles and denim production, including Afroze, , Al Karam Artistic Milliners, Azgard-9, Crestex, , Gul Ahmed, Interloop, Liberty Mills, Lucky Textile Mills, Mustaqim, Naveena (NDL), Rajby Industries, Sapphire Finishing, Soorty, Style Textile and US Denim.

These companies rely on established Monforts technologies including Montex stentering equipment, Monfortex sanforizing units and Thermex dyeing ranges. The company’s Matex Eco Applicator minimum application system has also proved a big hit in recent years.

Monforts has also achieved considerable success in Pakistan with its Econtrol®* dyeing system  – an effective and established dyeing process. More than 40 Thermex continuous dyeing ranges have been installed in Pakistan in recent years and operator training on the Econtrol®* process by sophisticated technologists is an additional service.

The Econtrol® pad-dry process has a number of immediate benefits. Compared to the common pad-dry-pad-steam process, no salt is used and no steamer is required for a separate fixation step. Compared to the pad-dry-thermofix process, no urea is used and no smoke or deposits are generated, and unlike with the cold pad batch process, direct feedback of the dyeing results ensures no batching time is necessary and guarantees good reproducibility from the lab to bulk production.

An immediate wash off is also unnecessary, allowing for flexible production planning. The process is suitable for pale to dark shades with very good fastness properties. Also waste water treatment is improved by this technology.

*Econtrol is a registered mark of Dystar Colours Distribution GmbH.