Superior EDC forming fabric technology

High savings potential for packaging gap formers

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Lightweight packaging paper grades with their cost saving potentials revolutionize the market and are expected to grow further in the coming years. Alike Graphical Paper production lines in earlier years, such lightweight packaging paper grades are produced today on demanding fast operating Gap Formers.

ANDRITZ therefore developed with their patented EDC Forming Fabrics design a specific solution that allows utilizing a wide production window on demanding Paper Machines. EDC forming fabrics are an unique and superior solution compared to conventional SSB forming fabrics.  

Maximising the plant profitability

EDC Forming Fabric solutions improve the machine efficiency at stable machine run-ability and with less water- and fiber-carry. The machine cleanliness improves and paper sheet brake risks reduce. A better dewatering efficiency at reduced vacuum levels allow a cost efficient operation. The improved retention and paper sheet strength leads to a lower retention aid and chemical consumption.

The bottom line is that customers who use our special EDC forming fabrics XL often achieve savings of more than 80,000 euros per year.

Transform XL makes the difference

Not all forming fabrics are the same. With the unique design of our EDC forming fabric, we significantly improve results over the self-imposed market standard. EDC fabrics consist of drainage channels that provide a perfect combination of highest surface open area for fast and controlled dewatering and high supporting points with highest cross machine direction support.

EDC offers higher dewatering capabilities and a better fiber retention at the same time


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…100% unique FABRIC structure to control initial drainage


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Fabric Calliper – influences Paper Machine cleanliness and runnability


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EDC forming fabrics in practice

Case Study 1: EMEA
Transform 522 Forming Fabrics

Roll Blade Former: 1,550 m/min, fluting 75–150 gsm, 100% waste

Objective: Improve run-ability and performance
Action: Replace SSB with EDC forming fabric

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Results:
  • Both chambers of HV1 switched off, maintaining dryness of approx. 22% (not possible with competitor's SSB)
  • Dryness after CR achieved on first day – normally it takes 2 days
  • Reduction of caliper from 1.13 mm (SSB XL) to 0.95 mm (EDC XL)
  • Fabric return run clean and dry (benchmark)
  • High life potential of 13–14 weeks
  • Annual Savings > 60.000 EUR


Case Study 2: EMEA
Transform 522 Forming Fabrics

Roll Blade Former: >1,700 m/min, packaging paper 70–120 gsm, 100% waste

Objective: Improve run-ability and machine performance
Action: Replace SSB with EDC forming fabric

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Results:
  • Reduction of caliper from 1.13 mm (SSB XL) to 0.95 mm (EDC XL) with clean run at high speeds and reduced paper sheet brake risks
  • Consumption of retention aid reduced by 5-10%.
  • Excellent fabric dimensional stability allow safe highspeed operation
  • Stable fabric life of 12 weeks with remaining life potential reducing operational risks
  • Annual savings > 80,000 EUR


Case Study 3: EMEA
Transform 522 Forming Fabrics

Duo Former Base: 1500 m/min, Fluting 80-120g/m², 100% Waste

Objective: Improve performance, paper dryness and cleanliness
Action: Replace SSB with EDC design in both machine positions

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Results:
  • Reduction of caliper from 1.13 mm (SSB XL) to 0.95 mm (EDC XL) leading to improved cleanliness and improved run-ability (benchmark)
  • Improved dewatering and reduced drive load
  • Standard running time between fabric change stable 49days, remaining fabric life potential for both, top and bottom fabric
  • Annual Savings > 60.000 EUR

Issue 3/2022
EMEA

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