Writing instruments use water-based droplet ink components
TW202639757APending Publication Date: 2026-10-01MITSUBISHI PENCIL CO LTD
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Patent Information
- Application Number
- TW115102841
- Authority / Receiving Office
- TW · TW
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2025-01-27
- Filing Date
- 2026-01-23
- Publication Date
- 2026-10-01
Abstract
The writing instrument of the present invention comprises an oil droplet-type ink composition in water, which has an aqueous phase and oil droplets dispersed in the aqueous phase in the state of an oil droplet-type emulsion in water, wherein the oil droplets contain an oil phase and inorganic particles, and the density ratio of the oil droplets to the density of the aqueous phase is in the range of 0.85 to 1.15.
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