An inkjet ink includes an aqueous medium, composite particles, and a cross-linking agent. The composite particles are emulsified particles of a composite of a polyester resin and a disperse dye. The polyester resin includes at least one repeating unit derived from a polyhydric alcohol and at least one repeating unit derived from a polybasic carboxylic acid. The polyester resin is non-crystalline. The polyester resin has a glass transition point of at least 45° C. and no higher than 75° C. The polyester resin has an acid value of at least 10 mgKOH/g and no greater than 70 mgKOH/g. The polyester resin has a hydroxyl value of at least 20 mgKOH/g and no greater than 60 mgKOH/g. The cross-linking agent includes a blocked isocyanate.

An inkjet ink includes an aqueous medium, composite particles, and a cross-linking agent. The composite particles are emulsified particles of a composite of a polyester resin and a disperse dye. The polyester resin includes at least one repeating unit derived from a polyhydric alcohol and at least one repeating unit derived from a polybasic carboxylic acid. The polyester resin is non-crystalline. The polyester resin has a glass transition point of at least 45° C. and no higher than 75° C. The polyester resin has an acid value of at least 10 mgKOH/g and no greater than 70 mgKOH/g. The polyester resin has a hydroxyl value of at least 20 mgKOH/g and no greater than 60 mgKOH/g. The cross-linking agent includes a blocked isocyanate.

According to one embodiment, a high-definition and decolorable image is formed. A method for producing a colorable material according to an embodiment includes supplying a first solution containing a color developable agent and a first solvent to a color developing agent in the form of a powder which is insoluble in the first solvent so that a first mixture of the first solution and the color developing agent maintains the powder state, and removing the first solvent from the first mixture, thereby obtaining a powder of colorable particles containing the color developable agent and the color developing agent.

According to one embodiment, a high-definition and decolorable image is formed. A method for producing a colorable material according to an embodiment includes supplying a first solution containing a color developable agent and a first solvent to a color developing agent in the form of a powder which is insoluble in the first solvent so that a first mixture of the first solution and the color developing agent maintains the powder state, and removing the first solvent from the first mixture, thereby obtaining a powder of colorable particles containing the color developable agent and the color developing agent.

The present disclosure provides metallic LEP inks and associated methods. In one example, a method of manufacturing a metallic LEP ink having reduced impurities can comprising adding a metallic pigment slurry and a resin to a stainless steel attritor, adding ceramic grinding beads to the attritor, and grinding the metallic pigment and the resin to form the metallic LEP ink.

The present disclosure provides metallic LEP inks and associated methods. In one example, a method of manufacturing a metallic LEP ink having reduced impurities can comprising adding a metallic pigment slurry and a resin to a stainless steel attritor, adding ceramic grinding beads to the attritor, and grinding the metallic pigment and the resin to form the metallic LEP ink.

Provided herein are heterocyclic near infrared compounds, including near IR compounds defined by Formulae I-V described herein. The near infrared compounds can include a cyanine group, a phthalocyanine group, a naphthalocyanine group, a squaraine group, a carbocyanine group, or a combination thereof. In some embodiments, the near infrared compound can be charged. In some embodiments, the near infrared compound can comprise a cationic group. Compositions comprising the near infrared compounds are also disclosed. In some embodiments, the composition can contain the near infrared compound, a polymer, and an acceptable carrier. In some embodiments, the polymer can include an anionic group. The compositions can be used as a coating for marking a surface, such as an ink. The compositions can also be used on articles for detecting, identifying, or authenticating the article. Methods of making the compositions described herein are also disclosed.

An ink composition for screen printing for a glass substrate includes a solvent with a boiling point at least 170° C. at least 70 mass % of the total solvent and a prepolymer or polymer with a weight-average molecular weight of at least 2000 at least at 2 mass % with respect to total ink composition, and with a viscosity of 5 to 180 Pa.Math.s measured with a BH-type rotating viscosimeter at 25° C. and thixotropic index (TI value) of 2.0 to 8.0, the measured flow radius value being 13.0 to 24.0 mm after 1 minute from start of measurement by a flow property measuring method using a spread meter at 25° C. according to JIS K5701-1:2000, satisfying “F60”−“F45”≦1.0 mm, where “F60” and “F45” are measured flow radius values after 1 minute and 45 seconds, respectively, from start of measurement, and containing a coupling agent compound.

An ink composition for screen printing for a glass substrate includes a solvent with a boiling point at least 170° C. at least 70 mass % of the total solvent and a prepolymer or polymer with a weight-average molecular weight of at least 2000 at least at 2 mass % with respect to total ink composition, and with a viscosity of 5 to 180 Pa.Math.s measured with a BH-type rotating viscosimeter at 25° C. and thixotropic index (TI value) of 2.0 to 8.0, the measured flow radius value being 13.0 to 24.0 mm after 1 minute from start of measurement by a flow property measuring method using a spread meter at 25° C. according to JIS K5701-1:2000, satisfying “F60”−“F45”≦1.0 mm, where “F60” and “F45” are measured flow radius values after 1 minute and 45 seconds, respectively, from start of measurement, and containing a coupling agent compound.

A recording method includes applying a white ink containing a white material and a first resin onto a predetermined region of a recording medium, and applying a reaction liquid containing a reaction agent onto at least the predetermined region. Further, the recording method includes applying a clear ink containing a second resin onto at least the predetermined region, and the application of the white ink and the clear ink are performed while the white ink and the clear ink are both wet; and/or the white ink further contains the second resin. When either the first resin and water, or the second resin and water, is mixed with an aqueous solution of magnesium sulfate, the average particle size of the first resin increases more than the second resin.