Lignin amine salt as binder for aqueous printing ink composition

Details Lignin amine salt as binder for aqueous printing ink composition Lignin amine salt as binder for aqueous printing ink composition

1987-04-13

1990-01-02

Lieberman, Paul

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

1061231, C09D 1114

Patent

active

048910708

ABSTRACT:
A method of producing a lignin by-product of the black liquor residue of a kraft pulping process having improved water-solubility in amine salt form wherein the lignin precipitate of the black liquor residue is water-wash purified and maintained at moderately acid pH of no lower than about 5. The lignin may then be combined in aqueous slurry with an organic amine, such as monoethanolamine, to provide a highly stable aqueous solution of the amine salt of the lignin. The water-soluble lignin salt is particularly suited for use as an additive in water-based pigment printing compositions. The lignin amine salt functions as a grinding agent for the pigment in formulating and as a binder for the pigment in the printing process.

REFERENCES:
patent: 4612051 (1986-09-01), Miller, Jr. et al.
Derwent Abstract, 87-130289/19, Dilling et al, May 1987.

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