Preparation of microemulsion and micellar color inks from modifi

Details Preparation of microemulsion and micellar color inks from modifi Preparation of microemulsion and micellar color inks from modifi

1996-10-31

1998-05-12

Jones, Deborah

Compositions: coating or plastic

Coating or plastic compositions

Marking

106 3169, 106 3182, 106 3185, 106 3186, 106 3189, C09D 1100

Patent

active

057499527

ABSTRACT:
The ink of the invention comprises a vehicle and a colorant, with the vehicle comprising a microemulsion containing at least one substantially water-insoluble organic oil, at least one organic cosolvent, and water and, optionally, at least one amphiphile and at least one high molecular weight colloid. The colorant is a water-insoluble chromaphore that has been chemically modified to be water-soluble by addition of functional groups that impart water solubility. These functional groups are added to the surface of the chromaphore particles, resulting in water-soluble colorant particles. The inks described herein demonstrate high edge acuity, high optical density, fast drying times, reduced bleed, improved halo characteristics, high water fastness, and high smearfastness.

REFERENCES:
patent: 5133803 (1992-07-01), Moffatt
patent: 5169438 (1992-12-01), Matrick
patent: 5531816 (1996-07-01), Wickramanayake

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