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Paper Machinery Divisions - Voith

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2<br />

To quote from the Alliance 1997 Annual<br />

Report, “Buyers are extremely satisfied<br />

with the papers, which have been lavishly<br />

praised by many customers.”<br />

In November 1997 Alliance launched the<br />

“Eminence” brand, soon followed by<br />

“Eminence Plus”.<br />

“Offering excellent printability, Eminance<br />

papers have received a good market<br />

acceptance and are highly praised by<br />

many of our customers” said Pierre<br />

Monahan, President and CEO of Alliance<br />

Forest Products Inc.<br />

This high praise notwithstanding, optimization<br />

continues as Alliance drives<br />

toward better and better quality. One of<br />

the principal players in this project is<br />

Jacques Perrault, well known in Canadian<br />

as well as international papermaking<br />

<strong>Paper</strong> Machines<br />

1<br />

technology circles. Let Jacques have the<br />

last word on the machine:<br />

“Thanks to the ModuleJet dilution headbox,<br />

PM 5 has consistently produced<br />

excellent dry weight profiles, as shown<br />

by 2-sigma spreads typically between<br />

0.12 and 0.17 g/m 2 . Such a level of profile<br />

uniformity is clearly beyond what<br />

could be achieved with a conventional<br />

headbox. This was of prime importance,<br />

considering the use of soft calenders.<br />

Roll build and pressroom performance<br />

reflect these very good profiles.<br />

Although the forming section is still being<br />

optimized, the sheet generally shows<br />

a ‘smile’ z-ash distribution, with basically<br />

no two-sidedness.<br />

<strong>Paper</strong> machine runnability has been very<br />

good because of very short web trans-<br />

Fig. 1: Jacques Perrault,<br />

Technical Manager<br />

Alliance Forest Products.<br />

Fig. 2: Dolbeau PM 5<br />

Main data<br />

Wire width 6425 mm<br />

Trim width 5840 mm<br />

Design speed 1200 m/min<br />

Basis weight range 45-56 g/m 2<br />

Products SCB and newsprint.<br />

25<br />

fers from the press and throughout the<br />

dryer section, the use of DuoStabilizer<br />

boxes and vacuum rolls, as well as operating<br />

with very light draws. A clean operation<br />

of the DuoFormer CFD and the<br />

DuoCentri press in addition to the use of<br />

slotted screens in the stock system contribute<br />

to this strong performance“.<br />

The Donnacona project team is almost<br />

unchanged from that responsible for the<br />

Dolbeau PM 5 rebuild. This was an excellent<br />

example of how well the <strong>Voith</strong> Sulzer<br />

<strong>Paper</strong> Technology partners work «twogether».<br />

Although the major supply was<br />

from Appleton, entire aggregates were<br />

delivered from Middletown, Krefeld and<br />

Heidenheim, with significant components<br />

from Brazil and Ravensburg. The successful<br />

integration of all these parts into<br />

the machine reflected the successful<br />

merging of the two companies.

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