INK SET AND INK-JET RECORDING METHOD

Title:

INK SET AND INK-JET RECORDING METHOD

Document Type and Number:

WIPO Patent Application WO/2022/219816

Kind Code:

A1

Abstract:

This ink set comprises an ink and a treatment liquid, wherein the ink comprises a pigment, fine resin particles, a water-soluble solvent having a boiling point in the range of 150-250°C, and a surfactant and the treatment liquid comprises a polyvalent-metal salt, a water-soluble solvent having a boiling point in the range of 150-250°C, and a surfactant. At 25°C, the ink has a statistic surface tension higher by at least 5 mN/m than that of the treatment liquid. At 25°C, the ink has a dynamic surface tension, at a surface age of 15 ms, higher by at least 5 mN/m than that of the treatment liquid, the ink has a dynamic surface tension, at a surface age of 15 ms, in the range of 35-45 mN/m, and the treatment liquid has a dynamic surface tension, at a surface age of 15 ms, in the range of 25-35 mN/m.

Inventors:

MAEDA AKIO (JP)
HAMAGAMI HIROKI (JP)
KANEKO MANABU (JP)
NIIZUMA NAOTO (JP)

Application Number:

PCT/JP2021/015750

Publication Date:

October 20, 2022

Filing Date:

April 16, 2021

Export Citation:

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Assignee:

KONICA MINOLTA INC (JP)

International Classes:

C09D11/54; B41J2/01; B41M5/00; C09D11/322; C09D11/38

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