Method for producing printed item
US-2019100668-A1 · Apr 4, 2019 · US
Oil-based inkjet ink
US10717887B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10717887-B2 |
| Application number | US-201815904496-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 26, 2018 |
| Priority date | Feb 28, 2017 |
| Publication date | Jul 21, 2020 |
| Grant date | Jul 21, 2020 |
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Abstract
Official abstract text for this publication.
An oil-based inkjet is disclosed, the oil-based inkjet ink containing a pigment, a pigment dispersant and a non-aqueous solvent, wherein the non-aqueous solvent contains a silicone oil having a surface tension of at least 19.0 mN/m but less than 24.0 mN/m and a polar solvent having a surface tension of at least 27.0 mN/m, and a surface tension of the ink is at least 23.0 mN/m but less than 27.0 mN/m.
First claim
Opening claim text (preview).
What is claimed is: 1. An oil-based inkjet ink comprising a pigment, a pigment dispersant and a non-aqueous solvent, wherein the non-aqueous solvent contains a silicone oil having a surface tension of at least 19.0 mN/m but less than 24.0 mN/m at 23° C. and a polar solvent having a surface tension of at least 27.0 mN/m at 23° C., a surface tension of the ink is at least 23.0 mN/m but less than 27.0 mN/m 23° C., and the pigment dispersant is adsorbed directly to a surface of the pigment. 2. The oil-based inkjet ink according to claim 1 , wherein an amount of the silicone oil is at least 5% by mass relative to the total mass of the ink. 3. The oil-based inkjet ink according to claim 1 , wherein the silicone oil contains a modified silicone oil. 4. The oil-based inkjet ink according to claim 1 , wherein an amount of the silicone oil is at least 5% by mass relative to the total mass of the ink, and the silicone oil contains a modified silicone oil. 5. The oil-based inkjet ink according to claim 1 , wherein a surface tension of the ink is at least 24.0 mN/m but less than 26.0 mN/m at 23° C. 6. The oil-based inkjet ink according to claim 1 , wherein a surface tension of the silicone oil is at least 20.0 mN/m but not more than 23.0 mN/m at 23° C. 7. The oil-based inkjet ink according to claim 1 , wherein a surface tension of the polar solvent is at least 30.0 mN/m at 23° C. 8. The oil-based inkjet ink according to claim 1 , wherein the polar solvent comprises at least one solvent selected from the group consisting of ester-based solvents, higher alcohol-based solvents, higher fatty acid-based solvents, and glycol ether-based solvents. 9. The oil-based inkjet ink according to claim 3 , wherein the modified silicone oil comprises at least one selected from the group consisting of an alkyl-modified silicone oil, an aryl-modified silicone oil, a carboxylate ester-modified silicone oil, and an alkylene-modified silicone oil.
Assignees
Inventors
Classifications
Pigment inks · CPC title
containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds · CPC title
- C09D11/36Primary
based on non-aqueous solvents · CPC title
containing carbon black · CPC title
characterised by the solvent · CPC title
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Frequently asked questions
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- What does patent US10717887B2 cover?
- An oil-based inkjet is disclosed, the oil-based inkjet ink containing a pigment, a pigment dispersant and a non-aqueous solvent, wherein the non-aqueous solvent contains a silicone oil having a surface tension of at least 19.0 mN/m but less than 24.0 mN/m and a polar solvent having a surface tension of at least 27.0 mN/m, and a surface tension of the ink is at least 23.0 mN/m but less than 27.0…
- Who is the assignee on this patent?
- Riso Kagaku Corp
- What technology area does this patent fall under?
- Primary CPC classification C09D11/36. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 21 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).