Inkjet recording method
AssigneeSeiko Epson Corporation
InventorsHiroshi Mukai, Katsuko Aoki
Life of this patent
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Abstract
An inkjet recording method for printing by ejecting droplets of a water-based ink composition onto a recording medium having a recording surface which is a plastic film and by causing the droplets to adhere to the recording surface, including: using, as the water-based ink composition, a water-based ink composition including at least colorant, between 0.1 wt % and 1.5 wt % of a silicon-based surfactant, alkanediol, pyrrolidone derivative, thermoplastic resin, and water; and heating the water-based ink composition that has adhered to the recording surface to a temperature of 40° C. or higher.
Claims6
An inkjet recording method for printing by ejecting droplets of a water-based ink composition onto a recording medium, the method comprising:
- providing a water-based ink composition consisting of colorant, a silicon-based surfactant of formula (I), 1,2-hexanediol, pyrrolidone derivative, thermoplastic resin, a pigment dispersing agent, a wetting agent, water and optionally a low surface tension organic solvent selected from a monohydric alcohol or a polyvalent alcohol derivative, the weight ratio of the silicon-based surfactant and the 1,2-hexanediol being 1:150 to 3:8, the wetting agent being at least one selected from the group consisting of glycerin, ethylene glycol, diethylene glycol, triethylene glycol, dipropylene glycol, hexylene glycol and 1,2,6-hexanetriol, the weight of the wetting agent in the water-based ink composition being more than 0% and less than 10%, the pigment dispersing agent having a molecular weight of 1,000 to 10,000 and an acid value of 100 to 300, and the thermoplastic resin having a molecular weight of 1,000 to 10,000 and a glass transition temperature of 10° C. to 100° C.;
- heating the water-based ink composition that has adhered to a recording surface of the recording medium to a temperature of 40° C. or higher;
- and
- printing an image on the recording surface with the water-based ink composition with a duty at 50% or higher,
- wherein R1 to R9 independently represent a C1-6 alkyl group, j and k independently represent an integer of 1 or more, EO represents an ethyleneoxy group, PO represents a propyleneoxy group, m and n represent an integer of 0 or more, where m+n represents an integer of 1 or more, and EO and PO in the bracket [ ] may occur in any order, either randomly or as a block.
An inkjet recording method for printing an image by ejecting droplets of a water-based ink composition onto a recording medium, the method comprising:
- providing a water-based ink composition consisting of colorant, a silicon-based surfactant of formula (I), 1,2-hexanediol, pyrrolidone derivative, thermoplastic resin, a pigment dispersing agent, a wetting agent, water and optionally a low surface tension organic solvent selected from a monohydric alcohol or a polyvalent alcohol derivative, the weight ratio of the silicon-based surfactant and the 1,2-hexanediol being 1:150 to 3:8;
- heating the water-based ink composition that has adhered to a recording surface of the recording medium to a temperature of 40° C. or higher;
- and
- printing an image on the recording surface with the water-based ink composition with a duty at 50% or higher,
- wherein R1 to R9 independently represent a C1-6 alkyl group, j and k independently represent an integer of 1 or more, EO represents an ethyleneoxy group, PO represents a propyleneoxy group, m and n represent an integer of 0 or more, where m+n represents an integer of 1 or more, and EO and PO in the bracket [ ] may occur in any order, either randomly or as a block.
Dependencies are inferred from the claim text.