Patent ID: 6527916
Filing Date: 2003-03-04
Classification: D21F

Abstract:
A pressing section of a paper machine comprising:a first and a second pressing station; a common lower felt arranged to run through said first and said second pressing stations; an first upper felt and a second upper felt arranged to run through said first and second pressing stations; said second pressing station comprising a shoe press roll located above a lower roll; a pressing plane of said second pressing station being oriented one of essentially vertically or inclined at an angle &bgr;, which is a maximum of about 20Â° to a vertical reference; said common lower felt being sufficiently dense to be air impermeable even in its new state after moistening, and being sufficiently open to allow water through at pressures greater than about 5 bar; said first and second upper felts being sufficiently open to allow air through in their moistened, uncompressed state; and a pressing plane of said first pressing station being oriented at an angle &agr;, which is greater than angle &bgr;.