Inkjet ink and inkjet recording method
US8777392B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2010 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Jun 6, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/165
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is an inkjet ink including at least water, a pigment, a resin, a water-soluble organic solvent, and a surfactant, wherein the resin consist of a copolymer resin synthesized from only a (meth)acrylic monomers, and the copolymer resin has an acid value of not less than 50 mgKOH/g and not more than 200 mgKOH/g, a glass transition temperature (Tg) not less than 20 and not more than 100° C., and a weight-average molecular weight (Mw) not less than 20,000 and not more than 100,000, and as a result, a high-quality image is formed in that abrasion resistance and adhesiveness on a non-absorptive recording medium are high, glossiness is high, and there is no ink mixing, and ejection performance is good and recovery through maintenance is excellent. Also provided is an inkjet recording method that uses the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.