Aqueous ink, ink for inkjet recording, printed material and method for producing printed material
US-2021395546-A1 · Dec 23, 2021 · US
Water-based inkjet ink and printed matter
US12545798B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12545798-B2 |
| Application number | US-202418871525-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 21, 2024 |
| Priority date | May 31, 2023 |
| Publication date | Feb 10, 2026 |
| Grant date | Feb 10, 2026 |
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- Title
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Abstract
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A water-based inkjet ink comprising a pigment, a surfactant (A), and a water-soluble organic solvent (B), in which the surfactant (A) includes an acetylenediol surfactant (A1) having an ethylene oxide structure and a propylene oxide structure, and having an HLB value of 10 or less; the water-soluble organic solvent (B) includes an alkanediol (B1) having 3 to 5 carbon atoms, and a glycol monoether (B2) having 4 to 10 carbon atoms; and a mass ratio ((B1)/(B2)) between a content of the alkanediol (B1) having 3 to 5 carbon atoms and a content of the glycol monoether (B2) having 4 to 10 carbon atoms is 0.8 to 12.
First claim
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The invention claimed is: 1 . A water-based inkjet ink comprising a pigment, a surfactant (A), and a water-soluble organic solvent (B), wherein the surfactant (A) includes an acetylenediol surfactant (A1) and a nonionic surfactant (A2) other than the acetylenediol surfactant (A1), wherein the acetylenediol surfactant (A1) has a structure represented by General Formula (1) described below, and an HLB value of 10 or less, the nonionic surfactant (A2) includes an acetylenediol surfactant different from the acetylenediol surfactant (A1) and a siloxane surfactant, wherein a sum of a content of the siloxane surfactant and a content of the acetylenediol surfactant different from the acetylenediol surfactant (A1) ranges from 20 to 850% by mass relative to the content of the acetylenediol surfactant (A1); the water-soluble organic solvent (B) includes an alkanediol (B1) having 3 to 5 carbon atoms, and a glycol monoether (B2) having 4 to 10 carbon atoms; a mass ratio ((B1)/(B2)) between a content of the alkanediol (B1) having 3 to 5 carbon atoms and a content of the glycol monoether (B2) having 4 to 10 carbon atoms is 0.8 to 12, and an energy required to evaporate the alkanediol (B1) having 3 to 5 carbon atoms is 2.5 to 16 times an energy required to evaporate the glycol monoether (B2) having 4 to 10 carbon atoms, General formula (1): in General Formula (1), each of R 1 and R 2 represents an alkyl group having 1 to 5 carbon atoms, which may have branches, EO represents an ethylene oxide group, and PO represents a propylene oxide group; each of m1, m2, n1 and n2 represents an integer of 1 to 10, and (m1+n1):(m2+n2)=1:9 to 9:1; and the addition forms of ethylene oxide groups and propylene oxide groups in brackets may be block type or random type. 2 . The water-based inkjet ink according to claim 1 , wherein a content of the acetylenediol surfactant (A1) is 0.1 to 5.0% by mass of the total amount of the water-based inkjet ink. 3 . A printed matter obtained by printing the water-based inkjet ink according to claim 1 .
Assignees
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Classifications
characterised by the solvent · CPC title
Duplicating or marking methods; Sheet materials for use therein (by using light-sensitive materials G03; electrography, magnetography G03G {; repeatedly usable boards or tablets for writing or drawing B43L1/00}) · CPC title
Pigment inks · CPC title
- C09D11/38Primary
characterised by non-macromolecular additives other than solvents, pigments or dyes · CPC title
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- What does patent US12545798B2 cover?
- A water-based inkjet ink comprising a pigment, a surfactant (A), and a water-soluble organic solvent (B), in which the surfactant (A) includes an acetylenediol surfactant (A1) having an ethylene oxide structure and a propylene oxide structure, and having an HLB value of 10 or less; the water-soluble organic solvent (B) includes an alkanediol (B1) having 3 to 5 carbon atoms, and a glycol monoeth…
- Who is the assignee on this patent?
- Artience Co Ltd, Toyocolor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C09D11/38. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 10 2026 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).