Title:
METHOD FOR DYEING ACRYLIC FIBERS AND METHOD FOR PRODUCING DYED ACRYLIC FIBERS
Document Type and Number:
WIPO Patent Application WO/2022/080024
Kind Code:
A1
Abstract:
The present invention provides: a method for dyeing acrylic fibers in a supercritical fluid; and a method for producing acrylic fibers that are dyed by the above-described method. The first embodiment of the present invention relates to a method for dyeing acrylic fibers, said method having a disperse dye adsorbed in a hydrophobic supercritical fluid. It is preferable that the disperse dye does not contain a dispersant. It is preferable that the supercritical fluid is carbon dioxide. The second embodiment of the present invention relates to a method for producing dyed acrylic fibers, said method comprising a step wherein a disperse dye is caused to adsorb onto acrylic fibers in a hydrophobic supercritical fluid.
More Like This:
Inventors:
OKUBAYASHI SATOKO (JP)
MATSUMOTO YOSHITOMO (JP)
KAWAUCHI WATARU (JP)
MATSUMOTO YOSHITOMO (JP)
KAWAUCHI WATARU (JP)
Application Number:
PCT/JP2021/031804
Publication Date:
April 21, 2022
Filing Date:
August 30, 2021
Export Citation:
Assignee:
KANEKA CORP (JP)
NAT UNIV CORP KYOTO INST TECHNOLOGY (JP)
NAT UNIV CORP KYOTO INST TECHNOLOGY (JP)
International Classes:
D06P1/20; D06B9/02; D06P3/72; D06P5/20
Domestic Patent References:
| WO2020077701A1 | 2020-04-23 |
Foreign References:
| CN111574848A | 2020-08-25 | |||
| CN108086022A | 2018-05-29 | |||
| US20180355536A1 | 2018-12-13 | |||
| CN106757918A | 2017-05-31 | |||
| CN108884632A | 2018-11-23 |
Attorney, Agent or Firm:
NIIYAMA Yuichi et al. (JP)
Download PDF: