Radiation-curable inkjet composition
A radiation-curable inkjet composition with a high-acid-value dispersant, bifunctional vinyl ether group-containing (meth)acrylate, and hydrophobic hindered amine compound addresses ejection stability issues, ensuring stable printing quality in moist conditions.
JP7757762B2Active Publication Date: 2025-10-22SEIKO EPSON CORP
Patent Information
- Application Number
- JP2021202231
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-12-14
- Publication Date
- 2025-10-22
- Estimated Expiration
- 2041-12-14
Smart Images
Figure 0007757762000001 
Figure 0007757762000002 
Figure 0007757762000003
Abstract
To provide a radiation curable inkjet composition which can be stably ejected even when used in an environment in which moisture is mixed.SOLUTION: A radiation curable inkjet composition contains: a dispersant; a polymerizable compound; and a hindered amine compound represented by the following general formula (1) or the like, wherein the radiation curable inkjet composition has a viscosity of 50 mPa s or less at 25°C, and the dispersant has an acid value of 30 mgKOH / g or more. In the general formula (1), R1 represents H-, O=, or R2-COO-, and R2 represents an alkyl group having 1 to 6 carbon atoms or a substituted or unsubstituted aromatic ring.SELECTED DRAWING: None
Need to check novelty before this filing date? Find Prior Art
Citation Information
Patent Citations
Ultraviolet-curable inkjet ink composition
JP2012092291A
UV-curable inkjet ink for light guide plate, and light guide plate using the same
JP2012158672A
Ultraviolet curing type inkjet ink for light guide plate, and light guide plate using the same
JP2012160314A
Ultraviolet-curable inkjet ink composition
JP2012167246A
Ultraviolet curable ink jet recording device and ink jet recording method
JP2014208421A