The present invention provides a photocurable ink composition for ink jet recording with excellent curability. The photocurable ink composition for ink jet recording includes polymerizable compounds, a photopolymerization initiator, and a colorant, wherein the polymerizable compounds include a vinyl ether group-containing (meth)acrylate represented by general formula (I):
CH.sub.2═CR.sup.1—COOR.sup.2—O—CH═CH—R.sup.3  (I)
(wherein R.sup.1 is a hydrogen atom or a methyl group, R.sup.2 is a divalent organic residue having 2 to 20 carbon atoms, and R.sup.3 is a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms) and phenoxyethyl (meth)acrylate.

The present invention provides a photocurable ink composition for ink jet recording with excellent curability. The photocurable ink composition for ink jet recording includes polymerizable compounds, a photopolymerization initiator, and a colorant, wherein the polymerizable compounds include a vinyl ether group-containing (meth)acrylate represented by general formula (I):
CH.sub.2═CR.sup.1—COOR.sup.2—O—CH═CH—R.sup.3  (I)
(wherein R.sup.1 is a hydrogen atom or a methyl group, R.sup.2 is a divalent organic residue having 2 to 20 carbon atoms, and R.sup.3 is a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms) and phenoxyethyl (meth)acrylate.

A process for preparing printed matter is disclosed which comprises applying first a UV-curable ink containing photoinitiators followed by an overprint varnish and then UV curing such as the amount of photoinitiators is less than 6% by weight of the total weight of the ink. The present invention relates to a printing process by applying first a UV-curable ink followed by an overprint varnish (OPV) and curing.

A process for preparing printed matter is disclosed which comprises applying first a UV-curable ink containing photoinitiators followed by an overprint varnish and then UV curing such as the amount of photoinitiators is less than 6% by weight of the total weight of the ink. The present invention relates to a printing process by applying first a UV-curable ink followed by an overprint varnish (OPV) and curing.

A radiation curable inkjet ink including an adhesion promoter including (1) at least one a free radical polymerizable group selected from the group consisting of an acrylate, a methacrylate, an acryl amide and a methacryl amide; (2) at least one aliphatic tertiary amine; and (3) at least one carboxylic acid or salt thereof with the proviso that the carboxylic acid is linked to an aliphatic tertiary amine via a divalent linking group selected from the group consisting of an optionally substituted methylene group and an optionally substituted ethylene group.

Methods for fabricating three-dimensional objects by 3D-inkjet printing technology are provided. The methods utilize curable materials that polymerize via ring-opening metathesis polymerization (ROMP) in combination with toughening agents for fabricating the object. Systems suitable for performing these methods and kits containing modeling material formulations usable in the methods are also provided.

Methods for fabricating three-dimensional objects by 3D-inkjet printing technology are provided. The methods utilize curable materials that polymerize via ring-opening metathesis polymerization (ROMP) in combination with toughening agents for fabricating the object. Systems suitable for performing these methods and kits containing modeling material formulations usable in the methods are also provided.

A pigmentary particulate material selected from the group consisting of titanium dioxide, doped titanium dioxide, and a mixture of titanium dioxide and doped titanium dioxide. The pigmentary particulate material has a mean crystal size of from 0.3 to 0.5 microns, a crystal size distribution such that ≥40 wt.-% of the pigmentary particulate material has a crystal size of from 0.3 to 0.5 microns, and a ratio of a mean particle size to the mean crystal size of ≤1.25.

A pigmentary particulate material selected from the group consisting of titanium dioxide, doped titanium dioxide, and a mixture of titanium dioxide and doped titanium dioxide. The pigmentary particulate material has a mean crystal size of from 0.3 to 0.5 microns, a crystal size distribution such that ≥40 wt.-% of the pigmentary particulate material has a crystal size of from 0.3 to 0.5 microns, and a ratio of a mean particle size to the mean crystal size of ≤1.25.

The present disclosure provides a high refractive index acrylic formulation embedded with sub-10 nm metal oxide nanocrystals. The formulation is ideal for high refractive index, high transparency coating for a variety of optical applications including OLED lighting.