Writing instruments use water-based droplet ink components
TW202639761APending Publication Date: 2026-10-01MITSUBISHI PENCIL CO LTD
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Patent Information
- Application Number
- TW115102770
- 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 water-based oil droplet ink composition of the present invention has an aqueous phase in the state of an water-based oil droplet emulsion and an oil phase dispersed in the aqueous phase. The oil phase contains a shear viscosity reducing agent, and the ratio of the viscosity of the oil phase at a shear rate of 383 sec-1 to the viscosity of the oil phase at a shear rate of 38.3 sec-1 is 0.8 or less.
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