Oil-based inkjet ink
AssigneeRiso Kagaku Corporation
InventorsHikaru Sugiura, Kazuyuki Ando, Shinsuke Ozawa
Life of this patent
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Abstract
An ink is provided which can prevent the deformation and degradation of resin products by printed items, and is also suitable for inkjet printing. The oil-based inkjet ink contains a colorant and a fatty acid ester-based solvent represented by general formula (1) shown below and having 12 to 23 carbon atoms in one molecule. (In general formula (1), each of R1 and R2 independently represents an alkyl group, and at least one of the alkyl groups of R1 and R2 is a branched alkyl group having a side chain of at least 4 carbon atoms.).
Claims16
An oil-based inkjet ink comprising a colorant and a fatty acid ester-based solvent represented by general formula (1) shown below:
- wherein (i) each of R1 and R2 independently represents an alkyl group of at least 8 carbon atoms, and at least one of the alkyl groups of R1 and R2 is a branched alkyl group having a side chain of at least 4 carbon atoms and the fatty acid ester-based solvent has 18 to 23 carbon atoms in one molecule, or (ii) each of R1 and R2 independently represents an alkyl group, each of R1 and R2 independently represents a branched alkyl group having a side chain of at least 4 carbon atoms and wherein the fatty acid ester-based solvent has 20 to 23 carbon atoms in one molecule.
An oil-based inkjet ink comprising a colorant and a fatty acid ester-based solvent represented by general formula (1) shown below:
- wherein each of R1 and R2 independently represents an alkyl group of at least 8 carbon atoms, one of the alkyl groups of R1 and R2 is a branched alkyl group having a side chain of at least 4 carbon atoms, another of R1 and R2 is a linear alkyl group, and the fatty acid ester-based solvent has 18 to 23 carbon atoms in one molecule.
An oil-based inkjet ink comprising a colorant and a fatty acid ester-based solvent represented by general formula (1) shown below:
- wherein each of R1 and R2 independently represents an alkyl group of 8 to 14 carbon atoms, at least one of the alkyl groups of R1 and R2 is a branched alkyl group having n-butyl group or hexyl group as a side chain, and the fatty acid ester-based solvent has 18 to 23 carbon atoms in one molecule.
Dependencies are inferred from the claim text.