US 11,891,753 B2
Fiber structure manufacturing apparatus, method of manufacturing fiber structure, and fiber structure
Kaneo Yoda, Nagano (JP); Yoshiyuki Nagai, Nagano (JP); Yoichi Miyasaka, Nagano (JP); and Nobutaka Urano, Nagano (JP)
Assigned to Seiko Epson Corporation, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on May 20, 2021, as Appl. No. 17/325,275.
Claims priority of application No. 2020-089396 (JP), filed on May 22, 2020.
Prior Publication US 2021/0363688 A1, Nov. 25, 2021
Int. Cl. D04H 1/60 (2006.01); D04H 1/732 (2012.01); D06M 10/00 (2006.01); D06H 7/02 (2006.01)
CPC D06M 10/00 (2013.01) [D04H 1/60 (2013.01); D04H 1/732 (2013.01); D06H 7/02 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method of manufacturing a fiber structure, comprising:
an accumulation step of accumulating a material containing a resin and a fiber in air to generate a fiber web;
a transport step of transporting the generated fiber web in a transport direction; and
a heating and pressurizing step of pressurizing the transported fiber web with a heated flat plate to melt the resin, wherein
a fiber structure having a first region where pressurization by a heating and pressurizing step is performed a predetermined number of times and a second region where the pressurization is performed more than the predetermined number of times is formed by alternately repeating transport at a predetermined pitch shorter than a length of the flat plate in the transport direction by a transport step and the pressurization.