Aqueous ink for ink jet printing

Details Aqueous ink for ink jet printing Aqueous ink for ink jet printing

1988-04-05

1990-01-30

Yarbrough, Amelia Burgess

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 20, 106 23, C09D 1100

Patent

active

RE0331554

ABSTRACT:
An aqueous ink is disclosed, which comprises a first magenta dye having the formula (I), a second magenta dye having the formula (II), a water-soluble organic solvent having a boiling point of 100.degree. C. or higher, water and a preservative and anti-mold agent: ##STR1## wherein K.and R.sup.2 each represent ##STR2## (in which R.sup.5, R.sup.6, R.sup.7 and R.sup.8 each represent a lower alkyl group, an amino group, a sulfonic acid group in the form of an alkali metal salt, or a carboxyl group in the form of an alkali metal salt); R.sup.3 and R.sup.4 each represent a lower alkyl group, an amino group, a sulfonic acid group in the form of an alkali metal salt, or a carboxyl group in the form of an alkali metal salt; and k, l, m and n each represent an integer of 0, 1 or 2.

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