Title:
MANUFACTURING METHOD OF CARBON FIBER UNWOVEN FABRIC
Document Type and Number:
Japanese Patent JP2020050999
Kind Code:
A
Abstract:
To provide a manufacturing method of a carbon fiber unwoven fabric reducing generation of defects such as wrinkle or nick, suppressing cut of a sheet and excellent in uniformity of a tone.SOLUTION: There is provided a manufacturing method for forming a carbon fiber unwoven fabric containing a recycled carbon fiber and a thermoplastic resin fiber by a wet type papermaking method, in which a slurry by dispersing the recycled carbon fiber in water using a high speed rotation shear type dispersion machine is used, a water drop is sprayed to wet paper at passage through a couch roll 3 with water amount of 0.2 L to 2.5 L per 1 square meter of the wet paper in a foamer part 5 of a wire part.SELECTED DRAWING: Figure 1
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Inventors:
HIROTA NOBUAKI
Application Number:
JP2018182475A
Publication Date:
April 02, 2020
Filing Date:
September 27, 2018
Export Citation:
Assignee:
MITSUBISHI PAPER MILLS LTD
International Classes:
D21H13/50; D04H1/4242