PH CONTROL IN A DYEING PROCESS USING CO2

Title:

PH CONTROL IN A DYEING PROCESS USING CO2

Document Type and Number:

WIPO Patent Application WO/2023/155129

Kind Code:

A1

Abstract:

The present invention is generally related to a dyeing process for a textile substrate, and in particular, related to a dyeing process using CO2 to control pH, especially pH of a textile substrate in the pretreatment stage.

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Inventors:

SHAO XIANGXIANG (CN)
XU YIDA (CN)

Application Number:

PCT/CN2022/076820

Publication Date:

August 24, 2023

Filing Date:

February 18, 2022

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Assignee:

LINDE GMBH (DE)
SHAO XIANGXIANG (CN)

International Classes:

D06P1/653; D06P1/00; D06P1/673; D06P5/20

Foreign References:

US4536907A	1985-08-27
CN107780239A	2018-03-09
US5295998A	1994-03-22

Attorney, Agent or Firm:

NTD PATENT & TRADEMARK AGENCY LTD. (CN)

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