Aqueous ink and process for its manufacture

Details Aqueous ink and process for its manufacture Aqueous ink and process for its manufacture

1987-10-28

1988-09-13

Yarbrough, Amelia Burgess

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 20, 106161, C09D 1104

Patent

active

047707062

ABSTRACT:
The invention relates to an aqueous ink for writing, drawing, or marking, which has as a dispersion stabilizer a degradation product of gelatin made by enzymatic action of a protease. The process of the invention is carried out by subjecting an aqueous gelatin solution to degradation by an enzyme, then inhibiting the enzyme, such as by heating to 90 degrees C. or above, before the degradation has proceeded to products which no longer have activity as dispersion stabilizers. Subsequently, colorants such as pigments can be added along with other desired additives.

REFERENCES:
Derwent Abstract Accession No. 87-133468/19. Japanese Patent No. J62074974, Apr. 6, 1987.
Derwent Abstract Accession No. 87-067597/10, Japanese Patent No. J62019483, Jan. 28, 1987.

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