The Effect of the Distance from the Size Press to the First Drier on Sheet Properties

It is the purpose of this thesis to attempt to evaluate the effect of the distance from the size press to the first drier on penetration and sheet properties. At a constant machine speed, this has the same effect as varying the dwell time of the starch on the sheet. It has been found that an optimum distance or dwell time exists for strength properties, namely, breaking length and burst factor. The effect on air resistance and tear, however, is much greater than the effect on the above. Tear was found to increase 20% with dwell time. Air resistance experienced a four fold increase. The strength properties changed because of a difference in penetration. Penetration was deep with short dwell time and decreased with extreme dwell time