Ink and ink set
US-2020048486-A1 · Feb 13, 2020 · US
Method for storing aqueous white ink composition for inkjet
US12258482B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12258482-B2 |
| Application number | US-202117997779-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 30, 2021 |
| Priority date | May 12, 2020 |
| Publication date | Mar 25, 2025 |
| Grant date | Mar 25, 2025 |
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- Title
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Abstract
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An object is to provide a method for storing or transporting an aqueous white ink composition for inkjet that does not cause precipitation of a pigment therein during storage for a long period or transport, and allows the pigment to be easily redispersed even if precipitation occurs. As means for solving the problems, a storing method is provided that includes placing an aqueous white ink composition for inkjet containing titanium oxide and a pigment dispersant in a tank and maintaining the entire aqueous white ink composition for inkjet in the tank at a temperature of −5 to −35° C.
First claim
Opening claim text (preview).
What is claimed: 1. A storing method comprising: placing an aqueous white ink composition for inkjet containing titanium oxide and a pigment dispersant in a tank; and maintaining the entire aqueous white ink composition for inkjet in the tank to have a temperature of −5 to −35° C., wherein the aqueous white ink composition for inkjet contains resin particles, wherein the resin particles are contained as at least one selected from a polyurethane resin emulsion, an acrylic-based resin emulsion, a paraffin wax emulsion, a polyethylene wax emulsion, and a polyester-based resin, wherein the pigment dispersant contains a copolymer of styrene, lauryl acrylate, and acrylic acid. 2. The storing method according to claim 1 , wherein the titanium oxide comprises either titanium oxide that has been subjected to, for example, surface treatment with any of silica, silica and alumina, and a silane coupling agent, or titanium oxide that has not been subjected to a surface treatment. 3. The storing method according to claim 1 , wherein the titanium oxide comprises either titanium oxide that has been subjected to, for example, surface treatment with any of silica, silica and alumina, and a silane coupling agent, or titanium oxide that has not been subjected to a surface treatment.
Assignees
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Classifications
characterised by non-macromolecular additives other than solvents, pigments or dyes · CPC title
Polyesters · CPC title
containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds · CPC title
characterised by the pigment dispersant · CPC title
- C09D11/322Primary
Pigment inks · CPC title
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- What does patent US12258482B2 cover?
- An object is to provide a method for storing or transporting an aqueous white ink composition for inkjet that does not cause precipitation of a pigment therein during storage for a long period or transport, and allows the pigment to be easily redispersed even if precipitation occurs. As means for solving the problems, a storing method is provided that includes placing an aqueous white ink compo…
- Who is the assignee on this patent?
- Sakata Inx 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 Mar 25 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).