Printing device and printing method

This invention describes a printing device that uses an inkjet head to eject a specific type of ink. The ink contains a colorant, organic solvent, and water, and is precisely formulated to have particular dynamic and static surface tension properties, as well as a specific contact angle with the nozzle plate. These carefully controlled ink characteristics are designed to ensure reliable and consistent ink ejection.

Why it matters: Since 2016, advancements in nozzle plate surface engineering and ink additive chemistry could make achieving the specified ink-nozzle interaction more robust or accessible.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: SpecializedPrecision inkjet head, specialized ink formulation, surface tension measurement

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