Abstract:
An active energy ray-curable ink composition includes (component A) monofunctional radically polymerizable monomers, (component B) a polyfunctional oligomer having a glass transition temperature of 20° C. or lower and an acrylate value of 300 g/value or more, and (component C) a bifunctional radically polymerizable monomer having a viscosity at 25° C. of 15 mPa·s or less, wherein the component A includes an N-vinyl compound and a compound represented by the following formula (I), the content of the N-vinyl compound with respect to the total amount of the ink composition is from 10 to 50% by mass, and the content of the component A with respect to the total amount of the ink composition is 70% by mass or more.
Abstract:
Disclosed is an actinic radiation-curing type ink composition comprising (Component A) a monofunctional radically polymerizable monomer and (Component B) a polyfunctional acrylate oligomer having a glass transition temperature of no greater than 20° C. and having an acrylate equivalent of at least 300 g/eq, Component A comprising (Component A-1) an N-vinyl compound and (Component A-2) an acrylamide derivative, Component A having a content of at least 70 mass % of the entire ink composition, and Component A-1 having a content of at least 18 mass % of the entire ink composition.
Abstract:
An ink composition includes (component A) a polymer that has a group containing a silsesquioxane structure and has a weight average molecular weight of 3,000 or more, (component B) a monofunctional polymerizable compound, and (component C) a polymerization initiator; or an ink composition includes (component A′) a compound that does not have an ethylenically unsaturated double bond but has a silsesquioxane structure, and has a molecular weight of 300 or more but less than 3,000, (component B′) a monofunctional polymerizable compound, (component C) a polymerization initiator, and (component D) a coloring agent, wherein a content of the (component B′) monofunctional polymerizable compound with respect to the total content of all the polymerizable compounds is 80% by mass or more.
Abstract:
A decorative sheet includes a resin substrate, and an image layer that includes a fixed-ink image formed of an ink composition containing (a) a pigment, (b) polymer particles, (c) a water-soluble organic solvent, and (d) water, on the resin substrate. When a tensile test is performed on the decorative sheet in an atmosphere at 180° C., a stretching rate thereof that is defined as below is 150% or higher. Stretching rate (%)=[(length at the time of breakage−length before stretching)/(length before stretching)]×100