Apparatus for the on-line manufacture of SC-A paper

Details Apparatus for the on-line manufacture of SC-A paper Apparatus for the on-line manufacture of SC-A paper

1998-08-27

2000-06-13

Gerrity, Stephen F.

Presses

With additional treatment of material

Adding materials

100 75, 100304, 100331, 162207, D21G 100, B30B 304

Patent

active

06073549&

ABSTRACT:
A process and an apparatus for the manufacture of SC-A paper having a high gloss and high smoothness, wherein the paper arriving from the paper machine is supplied on-line to a supercalender (multinip soft calender), and wherein the paper travels through a plurality of nips for achieving the desired gloss and smoothness properties. The paper web arriving from the paper machine and supplied on-line to a supercalender (multinip soft calender) is moistened with steam immediately prior to the first nip of the supercalender and is guided through the first nip before the increased moisture of the surface resulting from the application of steam has dropped below a predetermined value in the range of 12% to 25%.

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Rohde, Gunter: Konstruktion und Arbeitsweise der Heutigen Papiermaschinen-Glattwerke, Voith Forschung und Konstruktion, Heft 16 (Mai 1967) Aufs. 21.
Kari K. Hilden and David Sawley: "Calender Steam Showers. An effective new way of hot calendering", BD. 70, No. 7, Jul. 1987, pp. 87-91.

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