Flexibility, product uniformity and automation are the keys to success for coating businesses in today’s rapidly-changing technical textiles industry. The MontexCoat magnetic roller coating option of the manufacturer of textile machinery A. Monforts Textilmaschinen GmbH & Co. KG, Mönchengladbach/Germany, allows a wide range of coatings and finishes to be carried out, while being easy to handle and to clean at the end of the process.
The magnetic roller system has a range of options due to the fully-adjustable positioning of the magnet within the roller and with 4 different magnet positions possible. It can be set to operate both as a direct coating system and as an indirect coater.
With traditional dip coating systems, as well as with many standard knife coating technologies, there is always a difference in the tension between the center and the edges of the wide width fabrics being treated. With the use of a magnetic roller, equal pressure is applied across the full width of the fabric, with consistent results even at wide widths of over 2.4 m. In addition, adjusting the roller surface, rather than changing the coating formulation to match the required add-on and viscosity for each coating effect required, leads to much higher output from the line.
The accuracy that is now being demanded by today’s most exacting customers is met with an optional carbon fiber roller – especially in dealing with the winding tension required in the processing of materials such as prepregs for composites and other heavyweight fabrics. Applications for the MontexCoat include the finishing of tents and awnings, black-out roller blinds and sail cloth, automotive interior fabrics and medical disposables. Full PVC coatings, pigment dyeing or minimal application surface and low penetration treatments can all be accommodated.