METHOD FOR WATERLESS DYEING OF YARN BY USING VACUUM TRANSFER

Title:

METHOD FOR WATERLESS DYEING OF YARN BY USING VACUUM TRANSFER

Document Type and Number:

WIPO Patent Application WO/2022/075590

Kind Code:

A1

Abstract:

The present invention relates to a method for waterless dyeing of yarn, the method winding, around the outer circumferential surface of a porous drum-shaped jig, a yarn to be dyed, covering the outer surface thereof with a transfer sheet coated with a dye ink, and then creating vacuum pressure through the inner space of the dyeing jig so as to transfer the dye ink to the yarn, thereby enabling waterless dyeing of same, and the method for waterless dyeing of yarn, according to the present invention, comprises the steps of: (S1) winding, around the outer surface of a dyeing jig comprising a porous drum in which micro-holes are formed, a yarn to be dyed; (S2) covering the outer surface of the yarn, which is wound around the dyeing jig, with a transfer sheet coated with a dye ink; (S3) injecting the dyeing jig, around which the yarn and the transfer sheet are wound, into a process chamber, and connecting the dyeing jig to a vacuum generation means; (S4) applying heat to the inside of the process chamber to heat the yarn and the transfer sheet; and (S5) operating the vacuum generation means to evacuate the inner space of the dyeing jig, and thus generate a vacuum pressure in the inner space of the dyeing jig so that the dye ink of the transfer sheet is transferred to the yarn and the yarn is dyed.

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Inventors:

JANG JI-SANG (KR)
LEE JAE-JEONG (KR)
KIM KYOUNG-KYU (KR)
CHOI KYUNG-SEOK (KR)
PARK CHI-KYUN (KR)
PARK YONG-HOON (KR)

Application Number:

PCT/KR2021/011433

Publication Date:

April 14, 2022

Filing Date:

August 26, 2021

Export Citation:

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Assignee:

ASSEMS INC (KR)

International Classes:

D06P5/24; D06B3/04; D06B23/00

Foreign References:

CN2365056Y	2000-02-23
US20170146296A1	2017-05-25
KR20110111226A	2011-10-10
JPH11278716A	1999-10-12
CN105882125A	2016-08-24

Attorney, Agent or Firm:

OH, Wihwan (KR)

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