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. 09, 2014
Filed:
Sep. 03, 2007
Applicants:
Lars Fingal, Gothenburg, SE;
Mikael Strandqvist, Lindome, SE;
Inventors:
Lars Fingal, Gothenburg, SE;
Mikael Strandqvist, Lindome, SE;
Assignee:
SCA Hygiene Products AB, Gothenburg, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/26 (2006.01); B32B 5/12 (2006.01); D04H 1/46 (2012.01); B32B 5/08 (2006.01); B32B 9/02 (2006.01); B32B 27/36 (2006.01); B32B 7/12 (2006.01); B32B 27/02 (2006.01); B32B 27/34 (2006.01); B32B 27/32 (2006.01); B32B 5/14 (2006.01); A47L 13/17 (2006.01); B32B 27/12 (2006.01);
U.S. Cl.
CPC ...
A47L 13/17 (2013.01); B32B 5/08 (2013.01); B32B 9/02 (2013.01); B32B 27/36 (2013.01); B32B 7/12 (2013.01); B32B 27/02 (2013.01); B32B 5/26 (2013.01); B32B 27/34 (2013.01); B32B 27/32 (2013.01); B32B 5/14 (2013.01); B32B 27/12 (2013.01);
Abstract
A sheet of wiping material has a first outer surface and a second outer surface and a core region between the surfaces. The wiping material includes absorbent fibers and non-absorbent fibers. The wiping material has a stratified structure with a fiber gradient and a higher ratio of absorbent fibers to non-absorbent fibers at the outer surfaces of the wiping material than in the core region. A method of producing the wiping material is described.