Aqueous Ink Jet Ink Composition And Ink Jet Recording Apparatus
US-2018298214-A1 · Oct 18, 2018 · US
Ink composition and recording method
US10633548B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10633548-B2 |
| Application number | US-201815891773-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 8, 2018 |
| Priority date | Mar 14, 2017 |
| Publication date | Apr 28, 2020 |
| Grant date | Apr 28, 2020 |
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Abstract
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An ink composition contains water, at least one surfactant, and a pigment. The pigment has a specific surface area of 10 m2/g or more and 50 m2/g or less as determined by pulsed NMR at 30° C.
First claim
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What is claimed is: 1. An ink composition comprising: water; at least one surfactant; resin particles having a core-shell structure; and a pigment, wherein the pigment has a specific surface area of 10 m 2 /g or more and 50 m 2 /g or less as determined by pulsed NMR at 30° C.; and wherein the resin particles have a specific surface area that satisfies relation (2) as determined by pulsed NMR at 30° C.: 1.75≤ Sr −( Sp ×0.75)≤26.75 (2), where Sr denotes a specific surface area (m 2 /g) of the resin particles, and Sp denotes the specific surface area (m 2 /g) of the pigment. 2. The ink composition according to claim 1 , wherein the at least one surfactant includes a nonionic surfactant that satisfies relation (1): 0.15≤ H −( Sp ×0.25)≤3.75 (1) where H denotes an HLB of the nonionic surfactant, and Sp denotes the specific surface area (m 2 /g) of the pigment. 3. A recording method comprising attaching the ink composition according to claim 1 to a substrate. 4. A recording method comprising attaching the ink composition according to claim 2 to a substrate.
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Classifications
from unsaturated acids or derivatives thereof · CPC title
- C09D11/322Primary
Pigment inks · CPC title
characterised by features other than the chemical nature of the binder · CPC title
characterised by non-macromolecular additives other than solvents, pigments or dyes · CPC title
containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title
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Frequently asked questions
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- What does patent US10633548B2 cover?
- An ink composition contains water, at least one surfactant, and a pigment. The pigment has a specific surface area of 10 m2/g or more and 50 m2/g or less as determined by pulsed NMR at 30° C.
- Who is the assignee on this patent?
- Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification C09D11/322. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 28 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).