Azo compound, ink composition, recording method and colored material
US-8932393-B2 · Jan 13, 2015 · US
Ink composition, ink jet recording method using same, and colored material
US10190009B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10190009-B2 |
| Application number | US-201414907239-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 8, 2014 |
| Priority date | Aug 8, 2013 |
| Publication date | Jan 29, 2019 |
| Grant date | Jan 29, 2019 |
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Abstract
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An aqueous black ink composition that contains a colorant represented by formula (1) and one or more colorants (B-a) to (B-t). The ink composition is stable even when stored for a long period of time, has a low chroma and tint-free neutral black-to-gray color even when printing a deep color or light color, has a high printed image density, exhibits no change in hue when printed on different media, and produces a black recorded image having particularly excellent recorded image color development properties, light resistance, ozone gas resistance and moisture resistance.
First claim
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The invention claimed is: 1. An ink composition comprising a coloring matter represented by the following formula (3) and a coloring matter represented by the following formula (b4): wherein the coloring matter represented by formula (3) is from 40% to ⅔ by mass of the total amount of the coloring matters in the ink composition. 2. The ink composition according to claim 1 , further comprising (S), which is a water-soluble organic solvent. 3. The ink composition according to claim 2 , wherein the component (S) comprises at least one water-soluble organic solvents selected from the group consisting of 2-pyrrolidone, a glycerol-based solvent, and a glycol-based solvent. 4. An inkjet-recording method, comprising using the ink composition according to claim 1 as ink and performing recording by discharging, in response to a recording signal, a droplet of the ink and making the droplet deposited to a record-receiving material. 5. The inkjet-recording method according to claim 4 , wherein the record-receiving material is a communication sheet. 6. The inkjet-recording method according to claim 5 , wherein the communication sheet is plain paper or a sheet having an ink-receiving layer containing a white porous inorganic substance. 7. A colored material colored by the inkjet-recording method according to claim 4 . 8. An ink-jet printer, comprising a vessel containing the ink composition according to claim 1 .
Assignees
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Classifications
Mixtures of two or more azo dyes · CPC title
- C09D11/328Primary
characterised by dyes · CPC title
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- What does patent US10190009B2 cover?
- An aqueous black ink composition that contains a colorant represented by formula (1) and one or more colorants (B-a) to (B-t). The ink composition is stable even when stored for a long period of time, has a low chroma and tint-free neutral black-to-gray color even when printing a deep color or light color, has a high printed image density, exhibits no change in hue when printed on different med…
- Who is the assignee on this patent?
- Nippon Kayaku Kk
- What technology area does this patent fall under?
- Primary CPC classification C09D11/328. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 29 2019 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).