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US 8,474,966 B2Granted
Ink jet recording process
AssigneeSeiko Epson Corporation
InventorsKatsuko Aoki, Hiroshi Mukai
Life of this patent
Estimating the term…
Abstract
Recording onto a non-ink-absorbing or low-ink-absorbing recording medium is performed using an aqueous ink composition containing a first solvent composed of a glycol diether having a boiling point of 150 to 220° C., a second solvent composed of at least one selected from 1,2-hexanediol and 1,2-pentanediol, and a third solvent composed of a glycol having a boiling point of 170 to 220° C. and conducting two drying steps at different heating conditions.
Claims7
An ink jet recording process comprising:
- heating a non-ink-absorbing or low-ink-absorbing recording medium to a temperature range of 40 to 60° C. and discharging droplets of an aqueous ink composition with an ink jet recording apparatus;
- and
- heating the recording medium to a temperature range of 50 to 90° C. to dry the aqueous ink composition discharged on the recording medium,
- wherein the aqueous ink composition contains:
- water;
- at least one kind of water-insoluble coloring agent;
- water-insoluble thermoplastic resin particles;
- a surfactant;
- a first solvent composed of at least one selected from glycol diethers having a boiling point of 150 to 220° C.;
- a second solvent composed of at least one selected from 1,2-hexanediol and 1,2-pentanediol;
- and
- a third solvent composed of at least one selected from glycols having a boiling point of 170 to 220° C., and
- the content (W1) of the first solvent in the aqueous ink composition is 5 to 20 mass %;
- the content (W2) of the second solvent in the aqueous ink composition is 3 to 10 mass %;
- the content (W3) of the third solvent in the aqueous ink composition is 5 to 15 mass %;
- and
- the total content (W2+W3) of the second solvent and the third solvent is 22 mass % or less.
14 more elements
Dependencies are inferred from the claim text.