Provided are an ink composition for ink jet printing, and an image forming method and a recorded material using the ink composition for ink jet printing. The ink composition for ink jet printing includes: a colorant represented by the following Formula 1; resin particles; a water-soluble organic solvent; and water.

In Formula 1, Y.sup.1 and Y.sup.2 each independently represent a non-metal atomic group which forms an aliphatic ring or a heterocycle, M.sup.+ represents a proton or a monovalent alkali metal cation or organic cation, L.sup.1 represents a methine chain consisting of 5 or 7 methine groups, and a methine group at a center of the methine chain has a specific substituent.

##STR00001##

Disclosed is an ink including at least one particle including a first material; and at least one liquid vehicle; wherein the particle includes at least one particle including a second material and at least one nanoparticle dispersed in the second material; wherein the first material and the second material have an extinction coefficient less or equal to 1510.sup.5 at 460 nm. The invention also relates to inks, light emitting materials including at least one ink, patterns including at least one ink, particles deposited on a support, optoelectronic devices including at least one ink and method for depositing an ink on a support.

Disclosed is an ink including at least one particle including a first material; and at least one liquid vehicle; wherein the particle includes at least one particle including a second material and at least one nanoparticle dispersed in the second material; wherein the first material and the second material have an extinction coefficient less or equal to 1510.sup.5 at 460 nm. The invention also relates to inks, light emitting materials including at least one ink, patterns including at least one ink, particles deposited on a support, optoelectronic devices including at least one ink and method for depositing an ink on a support.

An aqueous inkjet ink is disclosed which contains a colorant, a polyoxyethylene monoallyl ether, and water.

An aqueous inkjet ink is disclosed which contains a colorant, a polyoxyethylene monoallyl ether, and water.

An electrically conductive screen-printable PTC ink composition with low inrush current and high NTC onset temperature, consisting of at least two different polymers, polymer-1 and polymer-2; wherein the melting temperature difference between polymer-1 and polymer-2 must be greater than 50 C., and the mechanical strength of polymer-1 as expressed by Young's modulus must be greater than 200 MPa.

An electrically conductive screen-printable PTC ink composition with low inrush current and high NTC onset temperature, consisting of at least two different polymers, polymer-1 and polymer-2; wherein the melting temperature difference between polymer-1 and polymer-2 must be greater than 50 C., and the mechanical strength of polymer-1 as expressed by Young's modulus must be greater than 200 MPa.

A novel pigment and a method to create the novel pigment are described. A raw material, such as municipal sewage sludge, municipal compost, food waste, agricultural waste, forestry waste, agroforestry waste, biomass, and/or livestock waste, are screened, cleaned, and/or prepared. The raw material is digested by microorganisms to create methane and a biosolid. The biosolid is dried and then carbonized to create a biochar. The biochar is ground into a powder pigment until a predetermined particle size is reached. The powder pigment having the predetermined particle size is applied to a media to create at least one product, such as an ink, a paint, a stain, a colored material, and/or a dye.

A novel pigment and a method to create the novel pigment are described. A raw material, such as municipal sewage sludge, municipal compost, food waste, agricultural waste, forestry waste, agroforestry waste, biomass, and/or livestock waste, are screened, cleaned, and/or prepared. The raw material is digested by microorganisms to create methane and a biosolid. The biosolid is dried and then carbonized to create a biochar. The biochar is ground into a powder pigment until a predetermined particle size is reached. The powder pigment having the predetermined particle size is applied to a media to create at least one product, such as an ink, a paint, a stain, a colored material, and/or a dye.

An electrically conductive screen-printable PTC ink composition with low inrush current and high NTC onset temperature, consisting of at least two different polymers, polymer-1 and polymer-2; wherein the melting temperature difference between polymer-1 and polymer-2 must be greater than 50 C., and the mechanical strength of polymer-1 as expressed by Young's modulus must be greater than 200 MPa.