The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 03, 2005

Filed:

Nov. 01, 2000
Applicants:

Timo Torvi, Järvenp{umlaut over (aa)}, FI;

Matti Lares, Tuusula, FI;

Inventors:

Timo Torvi, Järvenp{umlaut over (aa)}, FI;

Matti Lares, Tuusula, FI;

Assignee:

Metso Paper, Inc., Helsinki, FI;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B30B013/00 ; B30B003/04 ; D21F011/00 ;
U.S. Cl.
CPC ...
Abstract

Higher-gloss paper grades, in particular paper grades with a Hunter gloss % above 40, are produced in an arrangement having pairs of calendering units () disposed in the machine direction one after the other and apart from one another, which pairs are each formed of separate and different calendering units () and in each of which the nip load in the latter calendering unit () is higher than the nip load in the preceding calendering unit (). Advantageously, the calendering unit () placed first in the machine direction is an on-line long-nip calendering unit () and the calendering unit () placed after that in the machine direction is an on-line or off-line supercalender.


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