Aqueous ink, ink cartridge, and ink jet recording method
US-2016340530-A1 · Nov 24, 2016 · US
Aqueous ink, ink cartridge and ink jet recording method
US9988541B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9988541-B2 |
| Application number | US-201715490005-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 18, 2017 |
| Priority date | May 18, 2016 |
| Publication date | Jun 5, 2018 |
| Grant date | Jun 5, 2018 |
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Abstract
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An aqueous ink for ink jet including a resin particle. The resin particle has a first layer and a second layer in this order from the inside toward the outside of the resin particle. The first layer is formed of a first resin in which the proportion of a unit derived from a cycloaliphatic-group-containing ethylenically unsaturated monomer is 10% by mass or less. The tetrahydrofuran-insoluble fraction of the second layer is 15% by mass or more. The second layer is formed of a second resin having the unit derived from the cycloaliphatic-group-containing ethylenically unsaturated monomer and a unit derived from an ionic-group-containing ethylenically unsaturated monomer. The proportion of the unit derived from the ionic-group-containing ethylenically unsaturated monomer in the second resin is 3% by mass or more to 70% by mass or less.
First claim
Opening claim text (preview).
What is claimed is: 1. An aqueous ink for ink jet comprising a resin particle, wherein the resin particle has a first layer and a second layer in this order from the inside toward the outside of the resin particle, wherein the first layer is formed of a first resin in which a proportion of a unit derived from a cycloaliphatic-group-containing ethylenically unsaturated monomer is 10% by mass or less, and wherein (i) a tetrahydrofuran-insoluble fraction of the second layer is 15% by mass or more, (ii) the second layer is formed of a second resin having the unit derived from the cycloaliphatic-group-containing ethylenically unsaturated monomer and a unit derived from an ionic-group-containing ethylenically unsaturated monomer, and (iii) a proportion of the unit derived from the ionic-group-containing ethylenically unsaturated monomer in the second resin is 3% by mass or more to 70% by mass or less. 2. The aqueous ink according to claim 1 , wherein the resin particle further has a third layer formed of a unit derived from a reactive surfactant bonded to the second layer. 3. The aqueous ink according to claim 1 , wherein a tetrahydrofuran-insoluble fraction of the first layer is 15% by mass or less. 4. The aqueous ink according to claim 1 , wherein a proportion of a unit derived from a crosslinkable monomer in the first resin is 3% by mass or less. 5. The aqueous ink according to claim 1 , wherein a proportion of the unit derived from the cycloaliphatic-group-containing ethylenically unsaturated monomer in the first resin is 1% by mass or less. 6. The aqueous ink according to claim 1 , wherein a proportion of a unit derived from a monomer containing at least one functional group selected from the group consisting of a carboxy group, an alcoholic hydroxy group and a silanolic hydroxy group in the first resin is 5% by mass or less. 7. The aqueous ink according to claim 1 , wherein a tetrahydrofuran-insoluble fraction of the second layer is 95% by mass or less. 8. The aqueous ink according to claim 1 , wherein the second resin has a unit derived from a crosslinkable monomer, and a proportion of the unit derived from the crosslinkable monomer in the second resin is 5% by mass or more to 50% by mass or less. 9. The aqueous ink according to claim 8 , wherein the crosslinkable monomer in the second resin has two ethylenically unsaturated bonds. 10. The aqueous ink according to claim 1 , wherein a proportion of the unit derived from the cycloaliphatic-group-containing ethylenically unsaturated monomer in the second resin is 20% by mass or more to 90% by mass or less. 11. The aqueous ink according to claim 1 , wherein an ionic group of the ionic-group-containing ethylenically unsaturated monomer in the second layer is a carboxy group. 12. An ink cartridge comprising an ink and an ink storage portion storing the ink, wherein the ink is the aqueous ink according to claim 1 . 13. An ink jet recording method comprising ejecting an ink from an ink jet recording head to record an image on a recording medium, wherein the ink is the aqueous ink according to claim 1 .
Assignees
Inventors
Classifications
Mounting within the printer · CPC title
Pigment inks · CPC title
containing macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title
Inkjet printing inks · CPC title
Ink cartridges · CPC title
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- What does patent US9988541B2 cover?
- An aqueous ink for ink jet including a resin particle. The resin particle has a first layer and a second layer in this order from the inside toward the outside of the resin particle. The first layer is formed of a first resin in which the proportion of a unit derived from a cycloaliphatic-group-containing ethylenically unsaturated monomer is 10% by mass or less. The tetrahydrofuran-insoluble fr…
- Who is the assignee on this patent?
- Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification C09D11/107. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 05 2018 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).