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US 8,784,546 B2Granted
W/O-type emulsion ink composition for writing utensil and writing utensil
AssigneeZebra Co., Ltd.
InventorsMakoto Ugajin, Eriko Nemoto, Makoto Fuse, Taku Fukai
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Abstract
A W/O-type emulsion ink composition for a writing tool having an aqueous component dispersed in an oil component, the oil component including a fluorescent coloring agent, and the aqueous component including a fluorescent whitening agent and water.
Claims8
A W/O emulsion ink composition for a writing tool, comprising:
- an oil component;
- and
- an aqueous component dispersed in the oil component;
- wherein the oil component includes a fluorescent coloring agent, and the aqueous component includes a fluorescent whitening agent and water.
1 more element
Dependencies are inferred from the claim text.