An article comprising a heater that comprises a high-resistance magnification (HRM) PTC ink deposited on a flexible substrate to form one or more resistors. The HRM PTC ink has a resistance magnification of at least 20 in a temperature range of at least 20 degrees Celsius above a switching temperature of the ink, the resistance magnification being defined as a ratio between a resistance of the double-resin ink at a temperature ‘T’ and a resistance of the double-resin ink at 25 degrees Celsius.

An article comprising a heater that comprises a high-resistance magnification (HRM) PTC ink deposited on a flexible substrate to form one or more resistors. The HRM PTC ink has a resistance magnification of at least 20 in a temperature range of at least 20 degrees Celsius above a switching temperature of the ink, the resistance magnification being defined as a ratio between a resistance of the double-resin ink at a temperature ‘T’ and a resistance of the double-resin ink at 25 degrees Celsius.

In a resin for an active-energy-ray-curable ink containing a rosin-modified polyester resin, the rosin-modified polyester resin includes a reaction product of a material component containing rosins, a dibasic acid, and a polyol. The rosin-modified polyester resin has an ester bond in an amount of 5.20 mol/kg or more and 7.20 mol/kg or less. The rosin-modified polyester resin has an acid value of 1 mgKOH/g or more and 30 mgKOH/g or less. The rosin-modified polyester resin has a hydroxyl value of 1 mgKOH/g or more and 40 mgKOH/g or less.

In a resin for an active-energy-ray-curable ink containing a rosin-modified polyester resin, the rosin-modified polyester resin includes a reaction product of a material component containing rosins, a dibasic acid, and a polyol. The rosin-modified polyester resin has an ester bond in an amount of 5.20 mol/kg or more and 7.20 mol/kg or less. The rosin-modified polyester resin has an acid value of 1 mgKOH/g or more and 30 mgKOH/g or less. The rosin-modified polyester resin has a hydroxyl value of 1 mgKOH/g or more and 40 mgKOH/g or less.

An ink disclosed herein comprises a carrier liquid with a dispersion of flakes derived from a layered material. The thickness of each flake depends on the number of layers of the layered material in the flake. The thickness distribution of the flakes includes: at least 20% by number of single layer flakes; at least 40% by number cumulatively of single, double and triple layer flakes; or not more than 40% by number of flakes having ten or more layers. The layered material is selected from one or more of elemental materials such as graphene (typically derived from pristine graphite), metals (e.g., NiTe2, VSe2), semi-metals (e.g., WTa.sub.2, TcS.sub.2), semiconductors (e.g., WS.sub.2, WSe.sub.2, MoS.sub.2, MoTe.sub.2, TaS.sub.2, RhTe.sub.2, PdTe.sub.2), insulators (e.g., h-BN, HfS.sub.2), superconductors (e.g., NbS.sub.2, NbSe.sub.2, NbTe.sub.2, TaSe.sub.2) and topological insulators and thermo-electrics (e.g., Bi.sub.2Se.sub.3, Bi.sub.2Te.sub.3). Also disclosed are methods of manufacturing suitable inks and uses of the inks.

An ink disclosed herein comprises a carrier liquid with a dispersion of flakes derived from a layered material. The thickness of each flake depends on the number of layers of the layered material in the flake. The thickness distribution of the flakes includes: at least 20% by number of single layer flakes; at least 40% by number cumulatively of single, double and triple layer flakes; or not more than 40% by number of flakes having ten or more layers. The layered material is selected from one or more of elemental materials such as graphene (typically derived from pristine graphite), metals (e.g., NiTe2, VSe2), semi-metals (e.g., WTa.sub.2, TcS.sub.2), semiconductors (e.g., WS.sub.2, WSe.sub.2, MoS.sub.2, MoTe.sub.2, TaS.sub.2, RhTe.sub.2, PdTe.sub.2), insulators (e.g., h-BN, HfS.sub.2), superconductors (e.g., NbS.sub.2, NbSe.sub.2, NbTe.sub.2, TaSe.sub.2) and topological insulators and thermo-electrics (e.g., Bi.sub.2Se.sub.3, Bi.sub.2Te.sub.3). Also disclosed are methods of manufacturing suitable inks and uses of the inks.

The present invention relates to a magnetic particle having a high-reflective protective membrane and a method for producing same, especially wherein the magnetic particle includes a magnetic core, a shell formed on the magnetic core, and a high-reflective protective membrane formed on the shell, and the high-reflective protective membrane has low-refractive-index and high-refractive-index membranes. The magnetic particle has advantages that have high brightness and prevent the shell from being damaged by friction with a filler and pressure between rollers during a dispersion step of an ink-making process. Also, the magnetic particle is used for different colored inks, general paint, particulate pigments for vehicles, pigments for cosmetics, catalyst paint, and especially anti-forgery inks, etc., and has advantages that are durable and express colors that existing magnetic pigments fail to.

A pigment textile printing ink jet ink composition contains a pigment, a resin particle, a nonionic fluorine-based surfactant, and water.

A pigment textile printing ink jet ink composition contains a pigment, a resin particle, a nonionic fluorine-based surfactant, and water.

The present invention provides energy curable ink and coating compositions that comprise polymerizable compounds, photoinitiators, and colorants. The polymerizable compounds comprise one or more polymerizable monomers and/or oligomers, wherein at least a portion is 3-methyl-1,5-pentanediol diacrylate. The inks and coatings of the invention exhibit excellent print properties after UV-LED, standard UV mercury vapor lamp, and electron beam cure.