IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PRINTING MATERIAL Russian patent published in 2017 - IPC B41M5/00 

FIELD: information technology.

SUBSTANCE: image forming method, consisting of: a pre-treatment liquid application step for applying a pre-treatment liquid on a recording medium, including a substrate and a coating layer at least on one surface of substrate, wherein pre-treatment liquid is applied on a surface of recording layer with coating layer; a drying step for drying recording medium on which pre-treatment liquid has been applied; and an image forming step for forming an image on recording medium after drying by discharging a water-based ink by inkjet method, wherein pre-treatment liquid includes a water-soluble cationic polymer, an ammonium salt of an organic acid and water, and wherein water-based ink includes water and negatively charged coloured particles including a colorant.

EFFECT: imaging.

10 cl, 1 tbl, 1 dwg