Pulp Paper & Logistics


ANDRITZ


VOITH 11


Gadi Choresh, Albaad’s plant manager at Dimona in Israel


responsible for the web bonding and drying machines. AquaJet technology is used in the bonding of nonwovens, a process in which directed high-pressure water jets interweave the individual fibres together by using the momentum of the water. The material thereby obtains a high tensile strength and the desired textile feel without the use of any binding agents or bi-component fibres. In Albaad’s WLS plant,


The Voith WLM1 line at Dimona


properties even when things were not as expected.”


Voith and Trützschler machines for optimum quality For the wet-in-wet production of its nonwoven products, Albaad exclusively uses fibres made from cellulose. In the first step, web formation, a suspension highly- diluted with water is produced and fed into the Voith HydroFormer. A


homogeneous fibre mat forms on the inclined wire of the machine. In many respects, this process is similar to the manufacturing process of paper. Voith has carried its extensive competence in paper machines over into the HydroFormer concept and thereby makes it possible to produce high- quality nonwovens in this segment as well. Trützschler was largely


Trützschler’s high-performance Streamliner dryer carries out the bulk of the drying of the nonwoven material. The spiral dryer section significantly increases the air speed, achieving optimum drying performance. With the second drying step comes the component of the system provided by Voith, the contactless MCB drying system. Its uniform and stable web run ensures the efficient residual drying of the nonwoven material. Voith has furthermore equipped the WLM1 line with a comprehensive process and quality control system. It monitors all the relevant parameters of production and reliably ensures a high product quality.


Simple manufacturing of 100 per cent biodegradable, flushable wipes The renewable raw material cellulose is very cost-effective and allows the manufacture of high-


quality nonwovens with a range of characteristics. One special product segment is flushable wipes, which disintegrate very quickly in moving water but at the same time have a high strength when wet. They are also completely biodegradable. The hygiene products produced on the WLM1 line are suitable as moist toilet paper and can simply be flushed down the toilet. They therefore make an important contribution to reducing blockages and faults in waste-water systems. Cellulose-based hygiene products are also considerably more environmentally-friendly than those made from oil-based raw materials and help to ensure that our seas become less polluted with plastic waste. The second raw material needed


for production, water, is also used in an environmentally-compatible manner through the wet-in-wet technology. In a circuit, a filter system treats the white water from the HydroFormer and AquaJet and returns it to the manufacturing process.


Trützschler and Voith at a glance: Trützschler is one of the world’s leading manufacturers of textile machines. With a history going back 125 years, its headquarters are in Mönchengladbach, Germany, and it has other facilities in Germany, Switzerland, India,


4 July/August 2018


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