Fine fiber producing method and fine fiber producing apparatus

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United States of America Patent

PATENT NO 11142855
APP PUB NO 20210079573A1
SERIAL NO

16310151

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Abstract

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A fine fiber production method and a fine fiber production apparatus are provided. The fine fiber production method includes: discharging a flowable polymer compound from a discharge port provided at an extruder; forming fibers having a fiber diameter of from 50 nm to 15 μm by spraying, in a direction intersecting with a discharge direction of the flowable polymer compound, a pressurized gas from an air nozzle to the discharged flowable polymer compound, the air nozzle including a temperature control member and a spindle-shaped nozzle or a De Laval nozzle; and collecting the fibers using a collection member provided downstream in a gas spraying direction.

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Patent Owner(s)

Patent OwnerAddress
YAMASHIN-FILTER CORPYOKOHAMA-SHI KANAGAWA 231-0062

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Makino, Hiroshi Tokyo, JP 140 2859
Saito, Akihiro Tokyo, JP 88 755

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