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:
Jan. 07, 2003
Filed:
Apr. 02, 2001
Holger Hollmark, Stockholm, SE;
Lennart Reiner, Karlstad, SE;
Thomas Billgren, Kullavik, SE;
Kaveh Tondkar, Göteborg, SE;
Mats Söderberg, Sundvall, SE;
Bengt Järrehult, Göteborg, SE;
SCA Hygiene Products AB, Gothenburg, SE;
Abstract
Method of producing paper having a three-dimensional pattern of alternating raised and recessed portions which is given the paper in connection with impulse drying, at which the wet paper web is passed through at least one press nip ( ) comprising a rotatable roll ( ) which is heated and that the paper web when passing through the press nip is given a three-dimensional pattern either by means of a pattern wire ( ) and/or by the fact that the heated roll ( ) is provided with a three-dimensional pattern, and where the wet paper web ( ) before entering said press nip ( ) is given a basis weight variation in a non-random pattern.