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:
Dec. 10, 2024
Filed:
Mar. 18, 2020
Nichiha Corporation, Nagoya, JP;
Naoki Sugiyama, Nagoya, JP;
Toshikatsu Homma, Nagoya, JP;
NICHIHA CORPORATION, Nagoya, JP;
Abstract
[Object] To provide a fiberboard manufacturing method that is suitable for efficiently manufacturing a fiberboard in which warpage is suppressed, and to provide a fiberboard that is obtained by such a fiberboard manufacturing method. [Solution] The fiberboard manufacturing method of the present invention includes the following pulp crushing step S, mat forming step S, and hot-pressing step S. In the pulp crushing step S, pulp dispersed in water is beaten in a gap between opposed blades to thereby produce a plant-based fiber material that has a particle size D50 of 50 to 110 μm and a freeness value of 150 to 300 ml and that contains an adhesive component. In the mat forming step S, a mat is formed from the plant-based fiber material. In the hot-pressing step S, by hot-pressing the mat, a fiberboard is formed from the mat through a process of plasticizing the adhesive component in the mat.