Degradable polymeric compositions and articles comprising same
US-2024425683-A1 · Dec 26, 2024 · US
Black ink composition
US8960877B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8960877-B2 |
| Application number | US-201113038599-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 2, 2011 |
| Priority date | Mar 2, 2010 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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Provided is a black ink composition containing a pigment, wherein the value calculated from the average particle diameter and the particle size distribution width of the pigment and the ink viscosity is regulated within a certain range, and the number of coarse particles contained in the ink composition is regulated to a certain value or less. The ink composition is excellent in ink storage stability and can give an image realized with good balance between color development, in particular, in high-speed printing and inhibition of a time-dependent change in printing density due to pigment sedimentation.
First claim
Opening claim text (preview).
What is claimed is: 1. A black ink composition comprising a self-dispersing pigment having a hydrophilic group on its surface, wherein the amount of the pigment is not less than 6% by mass of the ink composition, wherein the ink composition comprises 10% to 60% by mass of water based on the amount of the ink composition, a water soluble organic solvent, and a surfactant which is an acetylene glycol surfactant and/or a polyether modified siloxane surfactant and the amount of the…
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Classifications
- C08K5/053Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C09D11/324Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US8960877B2 cover?
- Provided is a black ink composition containing a pigment, wherein the value calculated from the average particle diameter and the particle size distribution width of the pigment and the ink viscosity is regulated within a certain range, and the number of coarse particles contained in the ink composition is regulated to a certain value or less. The ink composition is excellent in ink storage sta…
- Who is the assignee on this patent?
- Maruyama Chie, Kanaya Miharu, Seiko Epson Corp
- What technology area does this patent fall under?
- Primary CPC classification C08K5/053. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 24 2015 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).