Abstract: Disclosed are an adhesive agent composition which has high chemical resistance and solvent resistance and is curable at around room temperature, an inkjet head which has good durability and jetting performance even in the case of using solvent ink, and a manufacturing method of the inkjet head. For these characteristics, the adhesive agent composition contains, as an activator, an imidazole derivative in which an alkyl group or a substituted alkyl group is substituted at the 1-postion or at the 1- and 2-positions, and as a base, a compound having three or more epoxy groups.

Abstract: Disclosed are an adhesive agent composition which has high chemical resistance and solvent resistance and is curable at around room temperature, an inkjet head which has good durability and jetting performance even in the case of using solvent ink, and a manufacturing method of the inkjet head. For these characteristics, the adhesive agent composition contains, as an activator, an imidazole derivative in which an alkyl group or a substituted alkyl group is substituted at the 1-postion or at the 1- and 2-positions, and as a base, a compound having three or more epoxy groups.

Abstract: Disclosed is an adhesive agent which is curable and has flexibility at low temperature, and further has resistant to solvent type ink. The adhesive agent includes a base and an activator, wherein the base includes at least any one of: bisphenol F epoxy compound; bisphenol F epoxy compound mixed with an epoxy compound having three or more epoxy groups; and bisphenol A epoxy compound mixed with an epoxy compound having three or more epoxy groups, wherein the activator includes: 100 parts by mass of polyamide composed of a condensation reaction product of C36 unsaturated fatty acid dimer and polyamine; and 5 to 200 parts by mass of alicyclic polyamine, and wherein the base is mixed with the activator with a ratio of 10 to 200 parts by mass of the activator with respect to 100 parts by mass of the base.

Abstract: Disclosed is an adhesive agent which is curable and has flexibility at low temperature, and further has resistant to solvent type ink. The adhesive agent includes a base and an activator, wherein the base includes at least any one of: bisphenol F epoxy compound; bisphenol F epoxy compound mixed with an epoxy compound having three or more epoxy groups; and bisphenol A epoxy compound mixed with an epoxy compound having three or more epoxy groups, wherein the activator includes: 100 parts by mass of polyamide composed of a condensation reaction product of C36 unsaturated fatty acid dimer and polyamine; and 5 to 200 parts by mass of alicyclic polyamine, and wherein the base is mixed with the activator with a ratio of 10 to 200 parts by mass of the activator with respect to 100 parts by mass of the base.

Abstract: Disclosed is an adhesive agent which is curable and has flexibility at low temperature, and further has resistant to solvent type ink. The adhesive agent includes a base and an activator, wherein the base includes at least any one of: bisphenol F epoxy compound; bisphenol F epoxy compound mixed with an epoxy compound having three or more epoxy groups; and bisphenol A epoxy compound mixed with an epoxy compound having three or more epoxy groups, wherein the activator includes: 100 parts by mass of polyamide composed of a condensation reaction product of C36 unsaturated fatty acid dimer and polyamine; and 5 to 200 parts by mass of alicyclic polyamine, and wherein the base is mixed with the activator with a ratio of 10 to 200 parts by mass of the activator with respect to 100 parts by mass of the base.

Abstract: Disclosed are an adhesive agent composition which has high chemical resistance and solvent resistance and is curable at around room temperature, an inkjet head which has good durability and jetting performance even in the case of using solvent ink, and a manufacturing method of the inkjet head. For these characteristics, the adhesive agent composition contains, as an activator, an imidazole derivative in which an alkyl group or a substituted alkyl group is substituted at the 1-postion or at the 1- and 2-positions, and as a base, a compound having three or more epoxy groups.

Abstract: An ink jet recording apparatus for jetting ink onto a recording medium having: an ink cartridge; an ink jet recording head; and an ink supply tube which connects the ink cartridge and the ink jet recording head, wherein a driving frequency of the ink jet recording head is 15 kHz or above, and an average surface roughness of an inner surface of the ink supply tube is 200 to 2,000 nm.

Abstract: An ink jet recording method including a step of: jetting a dye ink onto a surface of a recording medium, wherein said dye ink includes a latex capable of absorbing ultraviolet light, and said recording medium includes a substrate having thereon at least one ink absorbing layer, the outermost ink absorbing layer being a porous layer.

Abstract: An inkjet recording method having the steps of: ejecting ink containing pigment, water and an organic solvent onto an image receiving medium, wherein the image receiving medium has a support member having a non-solvent-permeable resin layer, and an ink image receiving layer having a solvent absorbing layer containing inorganic fine particles and a binder, and a surface portion layer containing resin fine particles, an inorganic pigment and a binder; and conducting a heating and pressing treatment onto the image receiving medium. The heating and pressing treatment satisfies conditions of following expressions: (T?TG)xt>2 (T?TM)xt<3 wherein, T represents a surface temperature (° C.) of the heating and pressing treatment; TG represents a glass transition temperature of the resin fine particles (° C.); t represents a time (second) of the treatment; and TM represents a melting temperature (° C.) of the non-solvent-permeable resin layer.

Abstract: An ink-jet recording method providing an ink containing a fine resin particle, a water-soluble dye, water and an organic solvent to an ink receiving sheet comprising a support and a porous ink receiving layer coated on the support is disclosed. In the method the difference of DL10 in the particle diameter distribution of the fine resin particle in the ink and DM50 in the pore diameter distribution of the porous layer measured using a mercury porosimeter (DL10?DM50) is not more than 170 nm.

Abstract: An ink jet recording apparatus for jetting ink onto a recording medium having: an ink cartridge; an ink jet recording head; and an ink supply tube which connects the ink cartridge and the ink jet recording head, wherein a driving frequency of the ink jet recording head is 15 kHz or above, and an average surface roughness of an inner surface of the ink supply tube is 200 to 2,000 nm.

Abstract: An ink-jet recording method of forming an image with an ink-jet head, wherein the ink-jet head includes an ink chamber, an electric actuator provided in the ink chamber and an insulating layer covering the electric actuator, including steps of: feeding an ink containing a coloring material and a water-soluble solvent into ink chamber, and applying a driving voltage with a driving frequency of 10 kHz to 55 kHz onto the electric actuator so that the ink is jetted from the ink chamber so as to form the image; wherein the thickness of the insulating layer is 0.1 &mgr;m to 10 &mgr;m, and the concentration of oxygen dissolved in the ink is 4 ppm or less.

Abstract: An ink-jet recording method providing an ink containing a fine resin particle, a water-soluble dye, water and an organic solvent to an ink receiving sheet comprising a support and a porous ink receiving layer coated on the support is disclosed. In the method the difference of DL10 in the particle diameter distribution of the fine resin particle in the ink and DM50 in the pore diameter distribution of the porous layer measured using a mercury porosimeter (DL10-DM50) is not more than 170 nm.

Abstract: An inkjet recording method having the steps of: ejecting ink containing pigment, water and an organic solvent onto an image receiving medium, wherein the image receiving medium has a support member having a non-solvent-permeable resin layer, and an ink image receiving layer having a solvent absorbing layer containing inorganic fine particles and a binder, and a surface portion layer containing resin fine particles, an inorganic pigment and a binder; and conducting a heating and pressing treatment onto the image receiving medium.

Abstract: An ink-jet recording a water-based ink from an ink chamber through a nozzle hole, wherein the ink chamber contacting with the water-based ink is constructed by jointing plural construction members with an epoxy adhesive, and the water-based in contains a coloring material, a first organic solvent, and a second organic solvent each having properties of a specific organicity and inorganicity. This method enables to enhance the stability of ejection of ink droplets without shortening the life of the head.

Abstract: An ink jet recording method comprising a step of: jetting a dye ink onto a surface of a recording medium, wherein said dye ink comprises a latex capable of absorbing ultraviolet light, and said recording medium comprises a substrate having thereon at least one ink absorbing layer, the outermost ink absorbing layer being a porous layer.

Abstract: An ink jet image recording material and a preparation method thereof are disclosed. The ink receiving layer is produced by using a coating composition which comprises silica particles produced by a gas phase method each having a primary particle diameter for from 5 to 20 nm and silica particles produced by a wet precipitation method and a secondary particle formed by these silica particles each has a particle diameter measured by a light scattering method of from 50 to 1,000 nm.

Abstract: An ink-jet recording method of forming an image with an ink-jet head, wherein the ink-jet head comprises an ink chamber, an electric actuator provided in the ink chamber and an insulating layer covering the electric actuator, comprising steps of: feeding an ink containing a coloring material and a water-soluble solvent into ink chamber, and applying a driving voltage with a driving frequency of 10 kHz to 55 kHz onto the electric actuator so that the ink is jetted from the ink chamber so as to form the image; wherein the thickness of the insulating layer is 0.1 &mgr;m to 10 &mgr;m, and the concentration of oxygen dissolved in the ink is 4 ppm or less.

Abstract: An ink set for ink-jet recording comprising a group of inks exhibiting the same hue and having different color densities and containing a colorant, water-soluble organic solvent and water, wherein among the group of inks, an ink has a largest surface tension &sgr;1 and another ink has a smallest surface tension &sgr;2,and said &sgr;1 and said &sgr;2 satisfy the following conditional formula: &sgr;2/&sgr;1>0.7, and wherein at least one of the inks contains iron ions, magnesium ions, calcium ions such that a total amount of the iron ions, the magnesium ions and the calcium ions is not more than 10 ppm by weight.

Abstract: An ink set for ink-jet recording comprising a group of inks exhibiting the same hue and having different color densities and containing a colorant, water-soluble organic solvent and water, wherein among the group of inks, an ink has a largest surface tension &sgr;1 and another ink has a smallest surface tension &sgr;2, and said &sgr;1 and said &sgr;2 satisfy the following conditional formula: &sgr;2/&sgr;1>0.7, and wherein at least one of the inks contains iron ions, magnesium ions, calcium ions such that a total amount of the iron ions, the magnesium ions and the calcium ions is not more than 10 ppm by weight.