Water-based ink for inkjet and method for producing printed matter
US-2020199387-A1 · Jun 25, 2020 · US
Aqueous inkjet ink composition
US12331206B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12331206-B2 |
| Application number | US-202418747139-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 18, 2024 |
| Priority date | Oct 1, 2018 |
| Publication date | Jun 17, 2025 |
| Grant date | Jun 17, 2025 |
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Abstract
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An aqueous inkjet ink composition contains a pigment, an alkali-soluble resin, a polyolefin resin emulsion, a basic compound, an aqueous medium, and a surfactant, wherein the alkali-soluble resin is a copolymer of acrylic acid/lauryl acrylate/styrene; a glass transition temperature of the alkali-soluble resin is 45° C. to 95° C.; an average grain size of the polyolefin resin emulsion is 5 to 300 nm; a solids content of the polyolefin resin emulsion is 0.5 to 5.0 percent by mass in the aqueous inkjet ink composition; and the surfactant contains at least an acetylenediol-based surfactant. The aqueous inkjet ink composition is adapted to offering excellent high-gap discharge stability, antifouling property, adhesion, drying property, abrasion resistance, discharge stability, and preservation stability, even when printed on nonabsorbent media.
First claim
Opening claim text (preview).
What is claimed: 1. An aqueous inkjet ink composition containing a pigment, an alkali-soluble resin, a polyolefin resin emulsion, a basic compound, an aqueous medium, and a surfactant, wherein the alkali-soluble resin is a copolymer of acrylic acid/lauryl acrylate/styrene, a glass transition temperature of the alkali-soluble resin is 45° C. to 95° C., an average grain size of the polyolefin resin emulsion is 5 to 300 nm, a solids content of the polyolefin resin emulsion is 0.5 to 5.0 percent by mass in the aqueous inkjet ink composition, and the surfactant contains at least an acetylenediol-based surfactant. 2. The aqueous inkjet ink composition according to claim 1 , wherein a content of the pigment is 2.0 to 6.0 percent by mass in the aqueous inkjet ink composition. 3. The aqueous inkjet ink composition according to claim 1 , wherein the polyolefin resin emulsion is a nonionic polyalkylene wax emulsion. 4. The aqueous inkjet ink composition according to claim 1 , wherein a content of the surfactant is 0.1 to 5.0 percent by mass in the aqueous inkjet ink composition. 5. The aqueous inkjet ink composition according to claim 1 , which is used in an inkjet recording device having a gap between an inkjet nozzle and a printing material, which is 3 mm or more. 6. An aqueous inkjet ink composition used in an inkjet recording device having a gap between an inkjet nozzle and a printing material, which is 3 mm or more, said aqueous inkjet ink composition containing a pigment, an alkali-soluble resin, a polyolefin resin emulsion, a basic compound, an aqueous medium, and a surfactant, wherein a glass transition temperature of the alkali-soluble resin is 45° C. to 95° C., an average grain size of the polyolefin resin emulsion is 5 to 300 nm, a solids content of the polyolefin resin emulsion is 0.5 to 5.0 percent by mass in the aqueous inkjet ink composition, and the surfactant contains at least an acetylenediol-based surfactant.
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Classifications
characterised by non-macromolecular additives other than solvents, pigments or dyes · CPC title
based on waxes or bitumen · CPC title
Hydrocarbon resins · CPC title
from unsaturated acids or derivatives thereof · CPC title
Amines; Quaternary ammonium compounds · CPC title
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- What does patent US12331206B2 cover?
- An aqueous inkjet ink composition contains a pigment, an alkali-soluble resin, a polyolefin resin emulsion, a basic compound, an aqueous medium, and a surfactant, wherein the alkali-soluble resin is a copolymer of acrylic acid/lauryl acrylate/styrene; a glass transition temperature of the alkali-soluble resin is 45° C. to 95° C.; an average grain size of the polyolefin resin emulsion is 5 to 30…
- Who is the assignee on this patent?
- Sakata Inx Corp
- What technology area does this patent fall under?
- Primary CPC classification C09D11/324. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 17 2025 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).