Document Type and Number:
Japanese Patent JPWO2021182502
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).
Application Number:
JP2022507239A
Publication Date:
September 16, 2021
Filing Date:
March 10, 2021
Export Citation:
International Classes:
C09K23/50