TOYO INK CO., LTD. Patent applications |
Patent application number | Title | Published |
20160046816 | AQUEOUS INK FOR INKJET AND PRINTING METHOD - To provide an aqueous ink for inkjet which has superior printability to typical printing media, particularly media having high glossiness, such as coated paper, art paper, and vinyl chloride sheets, and which is capable of forming a high quality image by printing. An aqueous ink for inkjet, comprising a pigment, a pigment dispersing resin, an organic solvent, and water, wherein: the organic solvent contains (A) a water-soluble organic solvent having a boiling point of 100° C. or higher and 180° C. or lower, and (B) an organic solvent having a boiling point of 200° C. or higher and 280° C. or lower, and having a surface tension of 20 mN/m or more and 30 mN/m or less. | 02-18-2016 |
20150353746 | PRINTING INK VARNISH, AND PRINTING INK COMPOSITION USING SAME - The present invention relates to an oil-based printing ink varnish comprising a polyurethane prepared using a polymeric polyol and a polyisocyanate as the main structural components, wherein the polyurethane is synthesized using, as a chain extender, a polyfunctional amine which contains at least one secondary amino group in each molecule and in which the total of the number of primary amino groups and the number of secondary amino groups is 3 or more per molecule. The present invention is able to provide a printing ink varnish containing a non-aromatic organic solvent and having excellent laminate strength, blocking resistance, dot reproducibility and plate clogging resistance, as well as a laminate ink containing the varnish. | 12-10-2015 |
20150268579 | POLYMERIC DISPERSANT FOR LIQUID DEVELOPER, LIQUID DEVELOPER, AND PRINTED MATTER - An embodiment of the present invention relates to a polymeric dispersant for a liquid developer, which is obtained by copolymerizing at least an ethylenically unsaturated monomer having an amino group, an ethylenically unsaturated monomer having an alkyl group with a carbon number of 9 to 24, and an ethylenically unsaturated monomer represented by general formula (1) shown below: | 09-24-2015 |
20150197649 | ALCOHOL-BASED PRINTING INK COMPOSITION - The present invention relates to an alcohol-based printing ink composition, comprising a colorant (E), a medium and a polyurethane urea resin (D) obtained by reacting a polyol (A), a diisocyanate (B) and a chain extender (C), wherein the polyol (A) comprises a polyester polyol (A0) having a repeating unit derived from a saturated hydroxycarboxylic acid having a side chain, and the medium comprises an alcohol (F), wherein the proportion of the alcohol (F) is at least 50% by weight relative to a value of 100% by weight for the total medium. Accordingly, the invention provides a printing ink comprising an alcohol having minimal environmental impact as the main component of the ink medium, the ink exhibiting excellent colorant dispersibility and storage stability, and having excellent re-solubility during long runs. | 07-16-2015 |
20140212634 | ACTIVE ENERGY RAY-CURABLE INKJET INK COMPOSITION AND PRINTED MATERIAL USING SAME - Provided is an ink composition used in active energy ray-curable inkjet printing, which has excellent curing property, discharge property, storage stability, and compatibility with various substrates. The inkjet ink composition of the present invention includes at least two types of polymerizable compounds selected from a group consisting of (A) 2-(2-vinyloxyethoxy)ethyl acrylate, (B) N-vinyl caprolactam, and (C) at least one type of bifunctional acrylate monomer including at least a diacrylate having a molecular weight of 250 or less. | 07-31-2014 |
20140069294 | ACTIVE ENERGY RAY-CURABLE INKJET INK COMPOSITION - Provided is an active energy ray-curable inkjet ink with high productivity which has the same quality level as the conventional printing and which contains an isoindoline-based pigment having a specific electric conductance, which is measured according to DIN ISO 787/14, of 150 μS/cm or less. | 03-13-2014 |
20140066550 | INKJET PIGMENT INK - Provided is an inkjet pigment ink which contains a pigment that is selected from the group consisting of C.L. Pigment Yellow 74 having a transmittance of 70% or more, C.I. Pigment Red 269 having a transmittance of 70% or more, C.I. Pigment Red 122 having a transmittance of less than 70% and C.I. Pigment Yellow 150; a water-soluble solvent that is selected from the group consisting of glycol ethers and diols; water; and a pigment dispersing resin that is a copolymer which contains a monomer A, a monomer B and a monomer C as unit components. The monomer A is an alkyl (meth)acrylate ester; the monomer B is styrene, α-methyl styrene or benzyl (meth)acrylate; and the monomer C is (meth)acrylic acid. | 03-06-2014 |
20140053753 | ACTIVE ENERGY BEAM-CURABLE INKJET INK COMPOSITION - The present invention provides an ink composition for use in active energy beam-curable inkjet printing, wherein the ink composition has low viscosity yet exhibits superior curability and superior adhesion to many different substrates, and also exhibits excellent storage stability. An active energy beam-curable inkjet ink composition containing at least polymerizable monomers (A) and a stabilizer (B), and containing essentially no water, the inkjet ink composition containing, as the polymerizable monomers (A), at least a polymerizable monomer (A-1) containing a vinyl ether group and an acryloyl group, and a polymerizable monomer (A-2) containing 2 or more acryloyl groups. | 02-27-2014 |
20130289185 | ALCOHOL-BASED PRINTING INK COMPOSITION - An alcohol-based printing ink composition comprising: a polyurethane urea resin (D) that is obtained by a reaction of polyol (A), diisocyanate (B), and a chain extender (C); a coloring agent (E); and a medium comprising an alcohol (F) and water, wherein the polyol (A) contains polyether polyol (A1) and polyester polyol (A2), and the medium comprises 75% by weight or more of alcohol (F). | 10-31-2013 |
20130139722 | ACTIVE ENERGY RAY-CURABLE INKJET INK COMPOSITION - Specifically provided is a single pass-curable ink having high color reproducibility and high curing properties at the same time and having high dischargeability when used in printing at high frequency and high jetting speed, as compared with conventional ones. An active energy ray-curable inkjet ink composition contains a metal lake pigment of a rhodamine dye as a pigment, and the active energy ray-curable inkjet ink composition may contain 0.5 to 10% by weight of Pigment Violet 1, Pigment Violet 1:1, Pigment Violet 2, Pigment Violet 2:2, Pigment Red 81, Pigment Red 81:1, Pigment Red 81:2, Pigment Red 81:3, Pigment Red 81:4, Pigment Red 81:5, Pigment Red 169, or Pigment Red 173 as the metal lake pigment of the rhodamine dye based on the total weight of the ink. | 06-06-2013 |
20130079447 | AQUEOUS INKJET INK COMPOSITION - An aqueous inkjet ink composition comprising a pigment, a pigment-dispersing resin, resin fine particles (A), water, and hydrophilic solvents (B), the resin fine particles (A) being formed by emulsion polymerizing ethylenically unsaturated monomers including: 20% to 80% by weight of an aromatic ethylenically unsaturated monomer (C) that does not have an ionic functional group; 0.6% to 6% by weight of water-soluble ethylenically unsaturated monomers (F) consisting of 0.5% to 3% by weight of a sulfonic acid group-containing ethylenically unsaturated monomer (D) and 0.1% to 3% by weight of a nonionic water-soluble ethylenically unsaturated monomer (E); and 0.1% to 10% by weight of a crosslinkable ethylenically unsaturated monomer (G), and the hydrophilic solvents (B) including a glycol-based solvent (H) and an ethylene glycol ether-based solvent (I) is provided. | 03-28-2013 |
20130045342 | COATING AGENT FOR FORMING INKJET INK-RECEIVING LAYER, RECORDING MEDIUM OBTAINED WITH SAME, AND PRINTED MATTER - Provided is a coating agent for forming an inkjet ink-receiving layer, which is intended to have excellent water resistance, to have suppressed occurrence of white spots/white streaks of images, and to have satisfactory ink dryability and excellent image forming properties, and which contains a crosslinked vinyl emulsion formed by emulsion polymerization of a monomer mixture including (A) a monomer having two or more ethylenically unsaturated groups, (B) a monomer having a carboxyl group and one ethylenically unsaturated group, and (C) a monomer having a hydrophobic group having 1 to 12 carbon atoms and one ethylenically unsaturated group. | 02-21-2013 |
20120252919 | ACTIVE ENERGY RAY-CURABLE INKJET INK COMPOSITION - An ink composition which is used for active energy ray-curable inkjet printing, has excellent curability or adhesiveness to multiple base materials while having low viscosity, and exhibits excellent non-yellowing properties of the printed matter is provided. The composition comprises a polymerizable monomer (A) and photopolymerization initiators (B), the polymerizable monomer comprising 2-(2-vinyloxyethoxy)ethyl acrylate (A-1), and the photopolymerization initiators comprising oligo(2-hydroxy-2-methyl-1-(4-(1-methylvinyl)phenyl)propanone) (B-1) and other initiator (B-2). | 10-04-2012 |
20120003435 | ACTIVE ENERGY RAY CURABLE INKJET INK COMPOSITION - There is provided an inkjet ink which has satisfactory storage stability and inkjet ejection stability, exhibits excellent curability, and is capable of forming high quality images on coated paper by an inkjet system. | 01-05-2012 |