Stabilizing aqueous inkjet ink compositions
US-2024400846-A1 · Dec 5, 2024 · US
Ink composition
US9695327B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9695327-B2 |
| Application number | US-201514969379-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 15, 2015 |
| Priority date | Dec 16, 2014 |
| Publication date | Jul 4, 2017 |
| Grant date | Jul 4, 2017 |
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Abstract
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An ink composition for ink jet recording includes: a first phase containing a pigment, a cellulose derivative, and water; and a second phase containing an organic solvent having a 50% distillation point of 280° C. or lower, in which the content of the cellulose derivative in the first phase is 3 mass % to 15 mass % with respect to the total mass of the first phase.
First claim
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The invention claimed is: 1. An ink composition for ink jet recording, comprising: a first phase containing a pigment, a cellulose derivative, and water; and a second phase containing an organic solvent having a 50% distillation point of 280° C. or lower, wherein the content of the cellulose derivative in the first phase is 3 mass % to 15 mass % with respect to the total mass of the first phase; and wherein the etherification degree of the entire cellulose derivative is 0.6 to 1.0. 2. The ink composition according to claim 1 , wherein the cellulose derivative is at least one selected from carboxymethyl cellulose and salts thereof, hydroxyethyl cellulose, hydroxypropyl cellulose, and methyl cellulose. 3. The ink composition according to claim 1 , wherein the ratio of the first phase to the total of the first phase and the second phase is 20 mass % to 60 mass %. 4. The ink composition according to claim 2 , wherein the ratio of the first phase to the total of the first phase and the second phase is 20 mass % to 60 mass %. 5. The ink composition according to claim 1 , wherein the second phase contains an organic solvent having a 50% distillation point of 300° C. or higher. 6. The ink composition according to claim 2 , wherein the second phase contains an organic solvent having a 50% distillation point of 300° C. or higher. 7. The ink composition according to claim 3 , wherein the second phase contains an organic solvent having a 50% distillation point of 300° C. or higher. 8. The ink composition according to claim 4 , wherein the second phase contains an organic solvent having a 50% distillation point of 300° C. or higher. 9. The ink composition according to claim 1 , wherein the number average molecular weight of the entire cellulose derivative is 10,000 to 150,000. 10. The ink composition according to claim 2 , wherein the number average molecular weight of the entire cellulose derivative is 10,000 to 150,000. 11. The ink composition according to claim 3 , wherein the number average molecular weight of the entire cellulose derivative is 10,000 to 150,000. 12. The ink composition according to claim 4 , wherein the number average molecular weight of the entire cellulose derivative is 10,000 to 150,000. 13. The ink composition according to claim 5 , wherein the number average molecular weight of the entire cellulose derivative is 10,000 to 150,000. 14. The ink composition according to claim 6 , wherein the number average molecular weight of the entire cellulose derivative is 10,000 to 150,000. 15. The ink composition according to claim 7 , wherein the number average molecular weight of the entire cellulose derivative is 10,000 to 150,000. 16. The ink composition according to claim 8 , wherein the number average molecular weight of the entire cellulose derivative is 10,000 to 150,000.
Assignees
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Classifications
- C09D11/322Primary
Pigment inks · CPC title
based on natural resins · CPC title
Emulsion inks · CPC title
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- What does patent US9695327B2 cover?
- An ink composition for ink jet recording includes: a first phase containing a pigment, a cellulose derivative, and water; and a second phase containing an organic solvent having a 50% distillation point of 280° C. or lower, in which the content of the cellulose derivative in the first phase is 3 mass % to 15 mass % with respect to the total mass of the first phase.
- 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 Jul 04 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).