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. 03, 2023
Filed:
Apr. 30, 2020
Applicant:
Oji Holdings Corporation, Tokyo, JP;
Inventors:
Assignee:
OJI HOLDINGS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 11/18 (2006.01); D21H 19/00 (2006.01); D21F 5/00 (2006.01); D21F 5/04 (2006.01); D21F 5/14 (2006.01);
U.S. Cl.
CPC ...
D21F 5/002 (2013.01); D21F 5/04 (2013.01); D21F 5/048 (2013.01); D21F 5/14 (2013.01); D21H 11/18 (2013.01); D21H 19/00 (2013.01);
Abstract
The present invention was accomplished in order to provide a method for producing a sheet containing fine fibers, which enables production of a sheet containing fine fibers without producing wrinkles. The present invention provides a method for producing a sheet containing fine fibers comprising a coating step of coating a dispersion containing fine fibers having a fiber diameter of 1000 nm or smaller on a base material, and a drying step of drying the dispersion containing fine fibers coated on the base material to form a sheet containing fine fibers.