Compozil system is a multifunctional wet-end chemical system developed by Eka Chemicals AB in Sweden, and this system has been well accepted for all of the paper including liner and board.
In this paper, the application of Compozil system into a Japanese liner machine is discussed.
The liner machine has the problems of lower retention and drainage, higher dosage of the chemicals, and spot on the product due to the neutralized pH caused by more waste paper as the feedstock. To dissolve these problems the introduction of Compozil system was studied. During the test run and the usual operation after the introduction of Compozil system since March 2003, following improvements have been proved.
1) Better retention and drainage, less dosage of the chemicals, and the reduction of the spot were accomplished
2) The increase of 2-3% average machine speed was realized
3) Around 1% increase of the finishing yield under stable operation
4) Around 6% increase of averaged production rate per day
5) Significant saving of electric power consumption
6) Around 2.3% up of relative machine operation efficiency
7) Less frequency of the paper break (no paper break operation for 7 months was scored)
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