Electrospinning apparatus and electrospinning method

Patent metadata

Field	Value
Publication number	US-12480227-B2
Application number	US-202318462649-A
Country	US
Kind code	B2
Filing date	Sep 7, 2023
Priority date	Oct 3, 2022
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

In an embodiment, an electrospinning apparatus includes a transfer unit, a spinning head and an air ejection unit. In the transfer unit, a transfer target is transferred along a transfer direction, and a spinning head is capable of ejecting a material liquid toward the transfer unit from a first direction, which intersects the transfer direction. The air ejection unit forms an air flow that flows across the transfer unit toward an area located on an opposite side across the transfer unit in a second direction, which intersects both the transfer direction and the first direction, by ejecting air against the transfer unit from one side of the second direction.

First claim

What is claimed is:

1 . An electrospinning apparatus comprising:
a transfer unit in which a transfer target is transferred along a transfer direction; a spinning head capable of ejecting a material liquid toward the transfer unit from a first direction intersecting the transfer direction in the transfer unit; an air ejection unit that ejects air toward the transfer unit from one side of a second direction intersecting both the transfer direction and the first direction to form a flow of the air across the transfer unit toward an area located on an opposite side across the transfer unit in the second direction; and a detector that detects a vapor concentration of a solvent contained in the material liquid, wherein in an area in which air is ejected from the air ejection unit toward the transfer unit, the detector is arranged in each of an upper stream side portion and a lower stream side portion.

2 . The electrospinning apparatus according to claim 1 , further comprising:
an air suction unit that suctions the air flowing across the transfer unit toward the area located on the opposite side of the air ejection unit across the transfer unit in the second direction.

3 . The electrospinning apparatus according to claim 2 , wherein
the air suction unit is arranged in the area on the opposite side of the air ejection unit across the transfer unit in the second direction.

4 . An electrospinning method comprising:
transferring a transfer target along a transfer direction in a transfer unit; ejecting a material liquid from a first direction intersecting the transfer direction in the transfer unit toward the transfer target transferred in the transfer unit; and ejecting air toward the transfer unit from one side of a second direction intersecting both the transfer direction and the first direction, while the material liquid being ejected toward the transfer target, so as to form a flow of the air across the transfer unit toward an area located on an opposite side across the transfer unit in the second direction; and detecting a vapor concentration of a solvent contained in the material liquid, wherein in an area in which air is ejected from the ejecting air toward the transfer unit, the detecting is performed in each of an upper stream side portion and a lower stream side portion.

Assignees

• Toshiba Kk

Inventors

• Sugimoto Kanta
• Ooshiro Kenichi
• Tokuno Yoko
• Uchida Kenya

Classifications

• D01D5/0076

  characterised by the collecting device, e.g. drum, wheel, endless belt, plate or grid (D01D5/0046 takes precedence) · CPC title

• D01D5/0061 Primary

  characterised by the electro-spinning apparatus · CPC title

• D01D5/0038

  the fibre formed by solvent evaporation, i.e. dry electro-spinning · CPC title

• B29C2948/92228

  Content, e.g. percentage of humidity, volatiles, contaminants or degassing · CPC title

• G01N2291/022

  Liquids · CPC title