Ink set and method for producing printed matter
AssigneesToyo Ink Sc Holdings Co., Ltd., Toyocolor Co., Ltd.
InventorsMayuko Okamoto, Kazuhiro Jonai, Atsushi Yoda, Norio Suzuki
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Abstract
An ink set containing an inkjet ink and a treatment liquid, wherein the inkjet ink contains a pigment, a water-soluble organic solvent, a surfactant and water, the water-soluble organic solvent contains an alkyl diol (A) of 2 to 8 carbon atoms, the weighted average boiling point of the water-soluble organic solvent at one atmosphere is from 175 to 240° C., the surfactant contains an acetylenediol-based surfactant, the treatment liquid contains a coagulant, calcium nitrate is included as the coagulant in an amount of 6.8 to 20.8% by mass relative to the total mass of the treatment liquid, and the pH of the treatment liquid is from 2 to 11.
Claims14
An ink set comprising an inkjet ink, and a treatment liquid used in combination with the inkjet ink, wherein
- the inkjet ink comprises a pigment, a water-soluble organic solvent, a surfactant and water,
- the water-soluble organic solvent comprises an alkyl diol (A) of 2 to 8 carbon atoms, and a weighted average boiling point of the water-soluble organic solvent at one atmosphere is within a range from 175 to 240° C.,
- the surfactant comprises an acetylenediol-based surfactant,
- the treatment liquid comprises a coagulant,
- calcium nitrate is included as the coagulant in an amount of 6.8 to 20.8% by mass relative to a total mass of the treatment liquid, and
- a pH of the treatment liquid is within a range from 2 to 11.
Dependencies are inferred from the claim text.