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.
Patent No.:
Date of Patent:
Dec. 03, 2024
Filed:
Oct. 09, 2020
Applicant:
Billerudkorsnas Ab, Solna, SE;
Inventor:
Fredrik Nordstrom, Karlstad, SE;
Assignee:
BILLERUDKORSNAS AB, Solna, SE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21F 11/02 (2006.01); D21F 1/00 (2006.01); D21H 11/04 (2006.01); D21H 11/06 (2006.01);
U.S. Cl.
CPC ...
D21F 11/02 (2013.01); D21F 1/0018 (2013.01); D21H 11/04 (2013.01); D21H 11/06 (2013.01);
Abstract
There is provided a method of producing a paper, comprising the steps of: a) providing a pulp having a Schopper-Riegler (SR) number measured according to ISO 5267-1:1999 of 25-50, which pulp comprises at least 70% by weight sulphate or sulphite pulp; b) diluting the pulp to a consistency of 0.1%-0.9%; and c) forming a web from the diluted pulp from step b) in a forming section at a machine speed of at least 1100 m/min, such as 1100-1800 m/min.