Title:
MANUFACTURING METHOD OF HOLLOW PARTICLE, AND MANUFACTURING METHOD OF HOLLOW FIBER
Document Type and Number:
Japanese Patent JP2022150412
Kind Code:
A
Abstract:
To provide a manufacturing method of hollow particles capable of simply manufacturing hollow particles that contain triacetyl cellulose and are held into a spherical hollow shape and a manufacturing method of hollow fibers capable of simply manufacturing hollow fibers containing triacetyl cellulose and having a smooth surface.SOLUTION: A manufacturing method of hollow particles comprises: a step A1 of preparing a solution containing triacetyl cellulose, a good solvent, and a poor solvent, wherein a volume ratio of a content of the poor solvent to a total content of the good solvent and the poor solvent is 5 to 30 vol.%; and a step A2 for spraying the solution to form hollow particles having an outer shell containing triacetyl cellulose, as well as, a manufacturing method of hollow fibers comprising; a step B1 of preparing a solution containing triacetyl cellulose, a good solvent and a poor solvent in which a volume ratio of a poor solvent content to a total content of the good solvent and the poor solvent, is 5 to 50% by volume; and a step B2 of ejecting the solution from a nozzle to form hollow fibers having an outer shell containing triacetyl cellulose.SELECTED DRAWING: None
Inventors:
UMEMORI KENICHI
IWASE EIJIRO
IWASE EIJIRO
Application Number:
JP2021052997A
Publication Date:
October 07, 2022
Filing Date:
March 26, 2021
Export Citation:
Assignee:
FUJIFILM CORP
International Classes:
C08J3/12; B01J13/04; D01F2/28
Attorney, Agent or Firm:
Hideaki Ito
Fumio Mihashi
Fumio Mihashi
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