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. 09, 2024
Filed:
Aug. 31, 2022
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 17/28 (2006.01); D21F 3/02 (2006.01); D21H 11/14 (2006.01); D21F 7/00 (2006.01);
U.S. Cl.
CPC ...
D21F 3/02 (2013.01); D21F 7/003 (2013.01); D21H 11/14 (2013.01); D21H 17/28 (2013.01);
Abstract
A sheet producing method includes a web forming step of forming a web by accumulating fiber in a dry system, a water providing step of providing the web with water, and a compression-heating step of compressing and simultaneously externally heating the web provided with water, wherein a water content of the web provided with water in the water providing step is 12% by mass or more, and a compression degree of the web between before and after the compression-heating step is 1/7 or less.