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:
Oct. 05, 2021
Filed:
Mar. 08, 2017
Applicant:
Kikuo Yamada, Shinagawa-ku, JP;
Inventor:
Kikuo Yamada, Shinagawa-ku, JP;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
A61F 13/15 (2006.01); B32B 5/04 (2006.01); B32B 5/26 (2006.01); B32B 37/12 (2006.01); A61F 13/51 (2006.01); A61F 13/49 (2006.01); B32B 37/14 (2006.01); D21H 27/34 (2006.01); D21H 27/32 (2006.01); A61F 13/496 (2006.01); A61F 13/514 (2006.01); B32B 37/20 (2006.01);
U.S. Cl.
CPC ...
A61F 13/15699 (2013.01); A61F 13/15 (2013.01); A61F 13/49 (2013.01); A61F 13/4902 (2013.01); A61F 13/496 (2013.01); A61F 13/49019 (2013.01); A61F 13/51 (2013.01); A61F 13/51401 (2013.01); B32B 5/04 (2013.01); B32B 5/26 (2013.01); B32B 37/12 (2013.01); B32B 37/14 (2013.01); D21H 27/32 (2013.01); D21H 27/34 (2013.01); A61F 2013/15902 (2013.01); A61F 2013/49025 (2013.01); A61F 2013/49033 (2013.01); A61F 2013/51452 (2013.01); B32B 37/1207 (2013.01); B32B 37/20 (2013.01); B32B 2555/02 (2013.01);
Abstract
Provided is a multi-ply sheet production method and a multi-ply sheet production device for producing a multi-ply sheet which uses an elastic member, exhibits stretchability, and has reduced residual strain. The multi-ply sheet production method includes forming a multi-ply sheet by joining a first fibrous sheet, and a second fibrous sheet including a material containing a cellulose-based component, with an elastic member interposed therebetween, the elastic member being in a stretched state and coated with an adhesive on peripheral surface, and then heat-treating the multi-ply sheet at a temperature in accordance with the thermal characteristics of the adhesive.