PF Nonwovens, Znojmo, Czech Republic, has awarded an order for yet another Power Cleaner system to ProJet. This brings the total to 7 Power Cleaners on 7 different nonwovens manufacturing lines. The ProJet Power Cleaner is an in-line continuous belt cleaning system.
Both Spunbond and Meltblown are known to create contamination issues on the conveyor belt (also known as spinbelt), each process having its specific characteristics and belt contamination issues. Belt contamination reduces runnability of the production line and therefore output of face-mask material of the whole plant.
Problems caused by contamination
The local contamination, such as drips and “ropes”, cause uneven and non-uniform formation of the web in cross machine direction, leading to thinner areas in the web and even holes. The overall contamination, such as dust, short fibers, monomer and spin finish, cause a decreased permeability, leading to more drag of the belt on the vacuum boxes. This will wear the belts prematurely and therefor shorter lifetime. All in all, contamination on the belt leads to:
-poor runnability of the line
-web quality issues
-premature wear of belts
The solution
ProJet b.v., a company from the Netherlands, has invented a continuous spinbelt cleaning system, the Power Cleaner, which will continuously, 24h/day, clean off effectively all types of contamination. Using a brush to clean of “ropes”, high pressure heated water for monomer, short meltblown fibers, dust and spin finish, the Power Cleaner system will maintain optimum permeability of the belts throughout the life and significantly increasing lifetime of the belt. By doing so, runnability of the machine is optimized and quality of the web is secured.