From the Sector

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."

Brazil hosts all industries needed for textile and garment production - from fiber to final production. This is why Mahlo, with its diverse solutions on straightening technology and process control, will exhibit at Febratex, held on August 23-26 in Blumenau.

"No matter what products they make, all producers have the same goals at the end of the day," says Area Sales Manager Miguel Lessel. "High-quality goods without distortion and optimized processes that combine quality and economy.

The automatic straightening system of the world market leader ensures thread-straight fabric in almost all applications. The modular system can be adapted to individual production conditions. To optimize the processes around the stenter frame, Mahlo offers various process control systems. These can be used, for example, to measure and control critical parameters such as dwell time, thread density or residual moisture. These systems not only help to improve the quality of the textiles, but also to save raw materials and reduce energy costs.

At Techtextil from 21-24 June in Frankfurt, Mahlo will be demonstrating how manufacturers of technical textiles can optimise their production even further using measuring and control technology.

Special straightening technology for technical textiles
Mahlo's range also includes solutions for straightening distorted goods. Best suited for technical textiles are, for example, the symbol of the straightening machine, the Orthopac RVMC-15 and the reinforced version Orthopac GRVMC-15. Frame, bearings, and rollers are designed for high loads and allow large working widths of up to 5,400 mm. As the latest development from Mahlo, the experts present the Orthopac CRVMC-15 automatic straightener, which is particularly interesting for the glass & carbon fabric industry and some special applications.

The Mahlo team will present the wide portfolio of intelligent scanners and sensors that record product and process parameters, such as distortion, fabric temperature, dwell time, basis weight, coating weight, thickness, moisture content, residual moisture, exhaust moisture, air permeability, etc. online. Among other things, visitors can expect to see the Famacont PMC-15 weft density measurement system in live operation. The system measures the weft or course density on the running web and compares it with the target value stored in the recipe data management system. The detected deviation from the target value is used to fully automatically control the overfeed during the needling process at the stenter frame and to ensure a constant weft/course density over the full width of the product.

Baldwin Technology Company Inc. has forged a new partnership with Blutec S.A. de C.V., which now represents Baldwin’s full range of innovative spray systems and corona/plasma treaters for wovens, knits and nonwovens in Mexico.

Blutec is a leading agency in the textile sector, representing many of the most reputable textile machinery manufacturers worldwide. Present in the Mexican market for more than 25 years, Blutec is committed to collaborating with companies on the forefront of textile manufacturing technology, including Brückner, Mahlo, EFI Reggiani, Ferraro and, now, Baldwin.

Baldwin’s precision spray systems for finishing and remoistening use non-contact spray technology to provide optimal controlled coverage of the exact amount of liquids needed to achieve the specific characteristics of the fabric—saving customers time, money and valuable resources. Because only the required amounts of water and chemicals are applied, water consumption can be reduced by up to 50%, contributing to considerably improved productivity in the finishing process.
In addition, these solutions can process a wide range of low-viscosity water-based chemicals—such as softeners, antimicrobial agents, durable water repellents, flame retardants and more—for woven fabrics, knitted textiles and nonwovens.

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.

Although affected by the Covid-19 pandemic, ITMA ASIA + CITME, which takes place mid-June in Shanghai, will see a convincing participation of VDMA member companies. 56 exhibitors from Germany will exhibit at this year’s edition of Asia’s major fair for textile machinery. Due to the pandemic and travel restrictions, this is much less than in 2018, when 99 exhibitors from Germany were present. The booked space of German companies has almost halved compared to 2018. Nevertheless, Germany is still the second largest exhibitor nation after China.

At a virtual VDMA press conference early June, these renowned VDMA member companies* presented their highlights for the Asian market:

• Oerlikon Polymer Processing Solutions Division
• Truetzschler Group
• Neuenhauser
• Saurer
• Karl Mayer
• Groz-Beckert
• Herzog
• Lenze
• Mahlo
• Sedo Treepoint
• Thies

Instead of visiting the show personally, the VDMA offers a virtual trip to Asia. The established "Textile Machinery Webtalk" series via the newsroom IndustryArena will focus on ITMA ASIA in the run-up to the fair: VDMA Webtalks meet ITMA ASIA.

*See attached document for more information.

• Herzog: Organic start of Industry 4.0 scenarios with an app
• Mahlo: Better production results with digital help
• Lindauer DORNIER: An addition to personalized services

On the occasion of a VDMA press conference themed “ITMA countdown” in Frankfurt, speakers from member companies Lindauer DORNIER, Herzog and Mahlo showed how Industry 4.0 solutions are going to impact the textile process chain and what technologies visitors can expect to see at ITMA 2019. The products examples of the respective companies made clear that Industry 4.0 is no end in itself but helps to improve production processes and results and supplements the range of services.

Interview 1

Interview 2