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:
Jun. 25, 2002
Filed:
May. 11, 1999
Applicant:
Inventor:
Kent Vartiainen, Lerum, SE;
Assignee:
SCA Hygiene Products AB, Goteborg, SE;
Primary Examiner:
Int. Cl.
CPC ...
A61F 1/315 ;
U.S. Cl.
CPC ...
A61F 1/315 ;
Abstract
A method of producing an absorbent structure that includes hydrophilic fibres and particles of superabsorbent material, comprising forming an air-laid structure from fibres and superabsorbent particles. At least a part of the air-laid structure is moistened to a moisture content in the moistened region of at least 15% calculated on the total weight of the structure within the moistened region, whereafter the structure is dried to a moisture content of at most 12%. The moisture treatment improves the tensile strength of the absorbent structure. Liquid dispersion in the structure is also improved.