Title:
FIBERBOARD MANUFACTURING METHOD AND FIBERBOARD
Document Type and Number:
WIPO Patent Application WO/2020/196188
Kind Code:
A1
Abstract:
[Problem] To provide a fiberboard manufacturing method suitable for efficiently manufacturing fiberboard in which warpage is suppressed, and to provide fiberboard obtained by such a fiberboard manufacturing method. [Solution] This fiberboard manufacturing method involves the following pulp crushing step S1, mat forming step S2 and hot pressing step S3. In the pulp crushing step S1, pulp dispersed in water is beaten in a gap between opposed blades, thereby producing a plant-based fiber material that has a D50 particle size of 50-110 μm and a freeness value of 150-300 ml and that contains an adhesive component. In the mat forming step S2, a mat is formed from the plant-based fiber material. In the hot pressing step S3, by hot pressing the mat, a fiberboard is formed from said mat through a process of plasticizing the adhesive component in said mat.
Inventors:
SUGIYAMA NAOKI (JP)
HOMMA TOSHIKATSU (JP)
HOMMA TOSHIKATSU (JP)
Application Number:
PCT/JP2020/012102
Publication Date:
October 01, 2020
Filing Date:
March 18, 2020
Export Citation:
Assignee:
NICHIHA KK (JP)
International Classes:
D21J1/00
Domestic Patent References:
| WO2017175063A1 | 2017-10-12 |
Foreign References:
| JPS63295800A | 1988-12-02 | |||
| JPS60190322A | 1985-09-27 | |||
| JPH06311595A | 1994-11-04 | |||
| JPH0840761A | 1996-02-13 | |||
| JP2009019200A | 2009-01-29 | |||
| JP2003285305A | 2003-10-07 | |||
| JP2020066808A | 2020-04-30 | |||
| JP2003201695A | 2003-07-18 |
Other References:
See also references of EP 3845707A4
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