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US 2026/0258263 A1Published application
Oil-in-water ink composition for writing utensils
AssigneeMitsubishi Pencil Company, Limited
InventorKosuke OGURA
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Abstract
An oil-in-water type ink composition for writing utensils may include an aqueous phase and an oil phase dispersed in the aqueous phase in an oil-in-water type emulsion state. At least one of the oil phase and the aqueous phase may contain a colorant, and the oil phase may contain a sulfide or a sulfurized fat/oil.
Claims16
An oil-in-water type ink composition for writing instruments, comprising:
- an aqueous phase;
- and
- an oil phase dispersed in the aqueous phase, in an oil-in-water type emulsion state,
- wherein at least one of the oil phase and the aqueous phase comprises a coloring material, and
- wherein the oil phase contains a sulfide or a sulfurized oil/fat.
2 more elements
Dependencies are inferred from the claim text.