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:
Sep. 24, 2013

Filed:

Dec. 08, 2011
Applicant:

Yasuyuki Ogiwara, Tokyo-To, JP;

Inventor:

Yasuyuki Ogiwara, Tokyo-To, JP;

Assignee:

Ichikawa Co., Ltd., Tokyo-To, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21F 7/08 (2006.01); D21F 7/10 (2006.01); B32B 5/26 (2006.01); D03D 13/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Press felts for papermaking include a batt fiber layer and a base fabric. The batt fiber layer is integrated into the base fabric. The base fabric includes a ground warp yarn, a ground weft yarn, and an additional warp yarn. The ground warp yarn and the ground weft yarn include monofilament yarns, and the additional warp yarn includes a material different from a material forming the ground warp yarn. The additional warp yarn is arranged so that, when the base fabric is viewed in cross-section in a warp yarn direction, the additional warp yarn ascends toward a wet paper web-side surface of the base fabric and descends toward a roll-side surface of the base fabric, relative to the at least one ground warp yarn.


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