From the Sector

Finishing machinery specialist Monforts will exhibit at the upcoming Febratex textile machinery exhibition taking place in Blumenau, Brazil, from August 20-23, along with Uniferro, its new regional partner.

This new alliance follows the retirement of Herbert Erdmann of the service agency Euro Texteis, who has worked with Monforts over more than 30 years to secure a leading position in the region for Montex stenter dryers, Thermex dyeing ranges and associated finishing technology.

With offices in Sao Paulo and Ceara and sub-agents across Brazil, Uniferro has been active in the textile industry for over 50 years.

coaTTex
At Febratex, Monforts will introduce its latest coaTTex coating unit exclusively dedicated to air knife and knife-over-roller coating. For single-sided application with paste or foam, the versatile coater is suitable for both incorporation into existing finishing ranges as well as installation with new Monforts Montex stenter systems.

A wide range of coatings can be applied to fabrics for providing functions such as waterproofing, liquid and gas protection and breathability, in addition to foam lamination and black-out coating.

Denim hub
Brazil remains a buoyant hub for textile manufacturing with a particular stength in the denim dyeing and finishing sector and many Monforts Thermex hotflue dyeing systems are already operational in the region, reaping the benefits of the Econtrol® process.

Econtrol® is a continuous process for the dyeing of woven cotton and cellulosic fabrics, especially denim, in which reactive dyestuffs are fixed into the fabric in a one-step dyeing and drying process with a controlled combination of steam and air. The entire pad-dry process takes just two-to-three minutes.

“Differentiation is the key in the highly-competitive denim fabrics industry, whether through the successful incorporation of new fibres, accommodating new fabric constructions or exploring the many options for how to treat them at the finishing stage, to gain a market advantage,” says says Monforts Regional Sales Manager Achim Gesser. “Our lines allow users to be extremely versatile and respond quickly to market demand, while also allowing very short production runs.”

Because finishing is a particularly energy-intensive part of the textile production chain, it is exactly where convincing results can be achieved, he adds, and Monforts has developed a wide range of energy-saving. These included a range of heat recovery systems, such as the Universal Energy Tower and the ECO Booster. Both can also be retrofitted to existing ranges to make production more resource-efficient and economical, yet without having to invest in a new machine.

“Energy costs tend to be high in Brazil and can account for up to 70% of production costs for our customers, so there is great demand for ways of saving money,” says Gesser. “Cutting energy usage also helps in terms of global warming and reducing carbon footprint, of course, so these latest technologies are a win-win for fabric finishers. As we look forward to a promising partnership with Uniferro in Brazil, we would like to extend our thanks and best wishes for the future to Herbert Erdmann for his hard work over the years.”

Together with the German circular knitting machine builder Mayer & Cie., Groz-Beckert has developed the optimized Relanit sinker SNK F over the past years. Independently of this, the development of the new LCmax™ energy-saving needles took place. The focus of both developments is on efficiency, energy savings and increased process reliability.

Groz-Beckert offers interested machine builders different cooperation options to jointly develop new products or optimize existing ones. The Groz-Beckert Technology and Development Center (TEZ) provides the appropriate framework for so-called co-development projects. At the ITMA in Milan in June 2023, Groz-Beckert presented some of the successful cooperations under the motto "Innovation through cooperation". Among them were two new developments realized with Mayer & Cie. Groz-Beckert presented the two new products for the first time in Asia at ITMA Asia in November 2023.

Optimized Relanit sinker SNK F
At the end of 2018, circular knitting machine manufacturer Mayer & Cie. approached Groz-Beckert with a request to jointly develop an improved and more efficient sinker for selected machines of their Relanit family that would run more smoothly and reliably in the needle tricks. The innovative sinker has an integral spring with a spring force that is adapted to the sinker thickness. Field tests were consistently successful and confirmed the functionality and advantages of the new sinker.

Thanks to their adapted spring, the newly developed SNK F Relanit sinkers are securely guided while they are running through the cam track, resulting in a quieter operation. This increases process reliability and ensures an improved loop structure. In addition, wear on the swivel butts of the sinkers is reduced. This increases service life and makes the process more sustainable and cost-efficient.

Higher energy efficiency thanks to LCmax™
The objective second recent cooperation with Mayer & Cie. was to develop a cost-effective energy-saving needle. After considering various variants, the common choice of Mayer & Cie. and Groz-Beckert was the LCmax™ knitting machine needle with innovative, wave-shaped shank geometry. The first prototypes were extensively tested on laboratory machines at Groz-Beckert's TEZ.

The wave-shaped shank of the LCmax™ needle ensures a smaller contact area of the needle in the needle trick. This results in less friction, which reduces machine temperature and enables energy savings of up to 20 percent compared to a standard needle. This saves costs and at the same time allows operation of the machine at the maximum possible speed.

In both projects, the cooperation between Mayer & Cie. and Groz-Beckert went far beyond mere product development. In addition to Applications Engineering and Construction, the companies' Sales and Purchasing departments were also involved in a close exchange.