Image forming method

摘要

An image forming method applying a pretreatment liquid on the surface of a recording medium; and applying an inkjet ink including a colorant, a hydrosoluble organic solvent, a surfactant and water on the surface applied with the pretreatment liquid, wherein the hydrosoluble organic solvent includes at least one polyol including an equilibrium water content in an amount not less than 30% by weight at 23° C. and 80% RH; an amide compound having the following formula (I); and at least one of compounds having the following formulae (II) to (IV), and wherein a pure water transfers to the recording medium in an amount of from 1 to 15 mL/m2 when measured by a dynamic scanning liquid absorptometer at a contact time of 100 ms.

主权项

1. An image forming method, comprising:
applying a pretreatment liquid on the surface of a recording medium; and applying an inkjet ink comprising a colorant, a hydrosoluble organic solvent, a surfactant and water on the surface applied with the pretreatment liquid, wherein the hydrosoluble organic solvent comprises:
at least one polyol comprising an equilibrium water content in an amount not less than 30% by weight at 23° C. and 80% RH;an amide compound having the following formula (I); andat least one of compounds having the following formulae (II) to (IV),wherein R represents an alkyl group having 4 to 6 carbon atoms,wherein R1 represents a hydrogen atom or an alkyl group having 1 to 2 carbon atoms, and R2 represents an alkyl group having 1 to 4 carbon atoms,wherein R′ represents an alkyl group having 1 to 2 carbon atoms; and R3 represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cyclic alkyl group or an aromatic ring, andwherein R4 and R5 represent an alkyl group having 1 to 8 carbon atoms, respectively, andwherein a pure water transfers to the recording medium in an amount of from 1 to 15 mL/m2 when measured by a dynamic scanning liquid absorptometer at a contact time of 100 ms.