Washable marker ink composition

Details Washable marker ink composition Washable marker ink composition

2004-09-20

2008-11-25

McClendon, Sanza L (Department: 1796)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C106S031710, C523S160000, C523S161000, C524S162000, C524S548000

Reexamination Certificate

active

07455725

ABSTRACT:
The present invention provides a fluorescent marker ink coloring composition incorporating an optical brightener, a film-forming agent, an aqueous carrier, and a colorant. The optical brightener is an amphoteric distyryl fluorescent whitener which generates a special effect in the dried marking ink composition. The coloring composition can optionally include one or more of a humectant, a surfactant, a preservative, a drying agent, a pH regulant, a bittering agent or a fragrance. The present invention further provides a writing instrument comprising the coloring composition.

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