METHOD FOR PRODUCING LIQUID-REPELLENT FIBERS

Title:

METHOD FOR PRODUCING LIQUID-REPELLENT FIBERS

Document Type and Number:

WIPO Patent Application WO/2024/058204

Kind Code:

A1

Abstract:

The present invention addresses the problem of providing a method for imparting liquid repellency to fibers even when the amount of water and/or a surfactant is reduced, preferably without using water and/or a surfactant. Provided is a method for producing liquid-repellent fibers, the method comprising a fiber treatment step in which supercritical carbon dioxide is used as a treatment medium and a fiber base material is treated with a repellent containing a liquid-repellent compound, whereby liquid repellency can be imparted to the fibers even when the amount of water and/or a surfactant is reduced, preferably without using water and/or a surfactant.

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Inventors:

SAKAMAKI TATSUNORI (JP)
HIGASHI MASAHIRO (JP)
HORI TERUO (JP)
HIROGAKI KAZUMASA (JP)
TABATA ISAO (JP)

Application Number:

PCT/JP2023/033331

Publication Date:

March 21, 2024

Filing Date:

September 13, 2023

Export Citation:

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Assignee:

DAIKIN IND LTD (JP)
UNIV FUKUI (JP)

International Classes:

D06M23/00; C09K3/18; D06M13/224; D06M13/425; D06M15/263; D06M15/643

Domestic Patent References:

WO2001044209A1	2001-06-21
WO2019026593A1	2019-02-07

Foreign References:

JP2000220074A	2000-08-08
JP2002511907A	2002-04-16
JP2021155492A	2021-10-07
JP2021075609A	2021-05-20
JPS525400A	1977-01-17
JP2017504730A	2017-02-09
JP2022033218A	2022-02-28
JP2017222967A	2017-12-21
JP2018122250A	2018-08-09
US20020108183A1	2002-08-15