16. November 2016 | Nonwovens & Technical Textiles

Brückner supplies line for the coating of nonwovens for automobiles

Brückner knife-over-table foam unit
Source: Brückner Trockentechnik GmbH & Co. KG

The company OOO Nomateks lies in the region Uljanows near the South-Russian city of Samara. Nomateks developed in its history which goes back 50 years and became one of the biggest and most important nonwovens producers in Russia. With more than 180 workers and employees, the company produces high-quality nonwovens to be used in geo or automotive textiles with their own PP and PET fibres. Every year Nomateks produces more than 50 million m² of nonwovens.

A jointly realized project focused mainly on the customer’s request for highest flexibility and productivity with minimized use of resources. Therefore the line is able to coat, depending on the type of fabric and process, more than 15 million m² nonwovens per year for the use in automobiles. It is possible to finish velour needle felt carpets as well as unstructured needled nonwovens. With a length of more than 70 m it is one of the biggest lines Brückner ever supplied for the finishing of needled nonwovens. To meet the above mentioned requirements, above all the preparation times had to be optimzed and the thermal and electrical energy demand had to be reduced considerably in comparison to the existing line. Since the project is a completely independent production line, the supply of the line with raw material has been considered from another point of view and a real alternative compared to the conventional preparation process in the batch has been found.

The use of an inline mixer of the Various Mix type produced by Messrs. Hansa Industrie Mixer allows to meter water, latex, chalk and possible additives directly from the big bag discharging station into the line and to prepare a highly homogeneous compound. This compound is converted into an instable foam and is supplied directly to the application unit.

A Brückner knife-over-table foam unit is installed for the application.

The coated nonwovens is dried in a more than 27 m long Brückner Duo-Therm dryer, finished with a horizontal chain tensioning system to transport the fabric. This type of dryer is proven for the coating of carpets and nonwovens. The dryer which is directly heated via fan-supplied gas burners allows temperature differences of up to 60 °C due to separate heating and air circulating systems above and below the fabric web. In addition to the separate temperature adjustment on the coating and pile side also the air speed and thus the air circulation intensity can be adjusted independently by using the frequency-controlled circulating air fan drives. This provides for a high drying performance with very gently treatment of the pile and a high efficiency. This prevents pile deformations reliably.

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