Title:
DYE DISPERSANT
Document Type and Number:
WIPO Patent Application WO/2021/182502
Kind Code:
A1
Abstract:
A dye dispersant containing a composition obtained through sulfo-methylation of lignin, wherein the composition contains 1.5-4.5 mass% of Na2SO4 and has a S-content of 1.0-6.0 mass% in a group represented by formula (1): -SO3M (in formula (1), M represents a hydrogen atom, a monovalent metal salt, or a divalent metal salt).
Inventors:
NISHIMORI YOSHITO (JP)
AIMI HIKARU (JP)
SHINDO HIROKI (JP)
AIMI HIKARU (JP)
SHINDO HIROKI (JP)
Application Number:
PCT/JP2021/009481
Publication Date:
September 16, 2021
Filing Date:
March 10, 2021
Export Citation:
Assignee:
JUJO PAPER CO LTD (JP)
International Classes:
C09K23/50; C09B51/00; C09B67/20
Foreign References:
| JP2019189776A | 2019-10-31 | |||
| JP2020111530A | 2020-07-27 | |||
| JP2004507605A | 2004-03-11 | |||
| JP2002146028A | 2002-05-22 | |||
| JPS5270181A | 1977-06-10 | |||
| CN104356689A | 2015-02-18 | |||
| CN104672467A | 2015-06-03 | |||
| CN107790060A | 2018-03-13 |
Attorney, Agent or Firm:
FUJIMOTO Yoshihiro (JP)
Download PDF:
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