Abstract: A natural leather having a three-dimensional pattern formed on the surface thereof is provided. The three-dimensionally patterned natural leather permits a minute three-dimensional expression such as small dots and thin lines, is high in the degree of freedom of the three-dimensional pattern, can retain the three-dimensional pattern even with the lapse of time and retain the characteristics peculiar to the natural leather. The three-dimensional pattern is formed by a resin portion which covers by coating the surface of an undercoating layer of the natural leather partially in a pattern shape. The resin portion has a maximum thickness of 20 to 400 ?m.

Abstract: A colored leather product printed with images of high quality and also excellent in the wear resistance having an anionic base coat layer on a leather surface, a cationic ink receiving layer on the base coat layer, and a top coat layer on the ink receiving layer in which images are formed by applying a pigment to the ink receiving layer, the colored leather product being obtained by a manufacturing method including forming an anionic base coat layer to a leather surface, forming a cationic ink receiving layer to the surface formed with the base coat layer, forming images to the ink receiving layer using a pigment ink by an inkjet system and forming a top coat layer above the ink receiving layer formed with the images.

Abstract: The ink comprises a coloring component, a reactive oligomer and/or a reactive prepolymer, a reactive diluent and a photoinitiator, wherein the reactive oligomer and/or reactive prepolymer unit and the reactive diluent unit have a glass transition point of 0° to 70° C., respectively, in a polymer obtained therefrom. In the present invention, a cured film excellent in adhesion to materials and scratch resistance is obtained and image without blurring is formed in ink jet printing of the ultraviolet ray curable ink. An ultraviolet ray curable ink composition having a viscosity of 60 to 800 cps at 25° C. which comprises a coloring component, a reactive diluent, a photoinitiator and an oligomer and/or reactive prepolymer having compatibility with the reactive diluent is used. The ink composition is heated to 40° to 150° C. and applied to a recording medium and cured by ultraviolet rays.

Abstract: The present invention aims to provide a process for ink jet printing on cloth, in which the pre-treatment step can be omitted and by which printed matter having excellent design, wherein the image is unblurred and has high optical density, can be obtained. Specifically, the present invention relates to a process for ink jet printing on cloth using ultraviolet ray curable ink, which includes the steps of applying a transparent ultraviolet ray curable ink and then curing by ultraviolet rays, and thereafter applying a ultraviolet ray curable ink containing a coloring component to form an image.

Abstract: The ink comprises a coloring component, a reactive oligomer and/or a reactive prepolymer, a reactive diluent and a photoinitiator, wherein the reactive oligomer and/or reactive prepolymer unit and the reactive diluent unit have a glass transition point of 0° to 70° C., respectively, in a polymer obtained therefrom. In the present invention, a cured film excellent in adhesion to materials and scratch resistance is obtained and image without blurring is formed in ink jet printing of the ultraviolet ray curable ink. An ultraviolet ray curable ink composition having a viscosity of 60 to 800 cps at 25° C. which comprises a coloring component, a reactive diluent, a photoinitiator and an oligomer and/or reactive prepolymer having compatibility with the reactive diluent is used. The ink composition is heated to 40° to 150° C. and applied to a recording medium and cured by ultraviolet rays.

Abstract: An ultraviolet ray curable inkjet ink is disclosed in which a cured coating excellent in heat resistance, in addition to adhesivity and flexibility is obtained. The ultraviolet ray curable inkjet ink includes a reactive monomer, a reactive oligomer, and a photo-polymerization initiator, in which the reactive monomer is an aliphatic acrylate monomer having ester bonds except for acryloyl groups and/or one ether bond, and the reactive oligomer is an aliphatic acrylate oligomer.

Abstract: The ink comprises a coloring component, a reactive oligomer and/or a reactive prepolymer, a reactive diluent and a photoinitiator, wherein the reactive oligomer and/or reactive prepolymer unit and the reactive diluent unit have a glass transition point of 0° to 70° C., respectively, in a polymer obtained therefrom. In the present invention, a cured film excellent in adhesion to materials and scratch resistance is obtained, and an image without blurring is formed in ink jet printing of the ultraviolet ray curable ink. An ultraviolet ray curable ink composition having a viscosity of 60 to 800 cps at 25° C. which comprises a coloring component, a reactive diluent, a photoinitiator and an oligomer and/or reactive prepolymer having compatibility with the reactive diluent is used. The ink composition is heated to 40° to 150° C. and applied to a recording medium and cured by ultraviolet rays.

Abstract: The present invention aims to provide a process for ink jet printing on cloth, in which the pre-treatment step can be omitted and by which printed matter having excellent design, wherein the image is unblurred and has high optical density, can be obtained. Specifically, the present invention relates to a process for ink jet printing on cloth using ultraviolet ray curable ink, which comprises the steps of applying a transparent ultraviolet ray curable ink and then curing by ultraviolet rays, and thereafter applying a ultraviolet ray curable ink containing a coloring component to form an image.

Abstract: An ink set for ink jet printing, as well as an ink jet printing method and a printed matter both using the ink set, are provided, the ink set permitting the formation of an image superior in clearness, not undergoing discoloration or decoloration even during baking, capable of including representation of intermediate colors and having a wide color region. In the ink set, inorganic pigments of two colors are used as red components and specific inorganic pigments of other colors are selected, and by using the ink set there is obtained an image superior in clearness and very superior in gradation and having a wide color region, and intermediate colors can be represented without discoloration or decoloration even after baking.

Abstract: The present invention provides ultraviolet ray curable ink which is excellent in conformity, scratch resistance and adhesion and which provide a cured film which does not break even when recording is conducted on a flexible material. The ink comprises a coloring component, a reactive origomer and/or a reactive prepolymer, a reactive diluent and a photoinitiator, wherein the reactive origomer and/or reactive prepolymer unit and the reactive diluent unit have a glass transition point of 0° to 70° C., respectively, in a polymer obtained therefrom. In the present invention, a cured film excellent in adhesion to materials and scratch resistance is obtained and image without blurring is formed in ink jet printing of the ultraviolet ray curable ink. An ultraviolet ray curable ink composition having a viscosity of 60 to 800 cps at 25° C.

Abstract: Provision of a hot melt ink composition for ink-jet printing, which is capable of representing the intrinsic color of its coloring component and is stable at high temperature, allowing excellent reproducibility of the color of the images resultantly recorded on recording medium. A hot melt ink composition for ink-jet printing, which is composed of coloring matter, saturated hydrocarbon wax (solid at room temperature) and resin, said wax giving a color value of 1.0 or less as defined by ASTM D 1500 and said resin giving a YI value of −5 to 5 as defined by JIS K 7103. The hot melt ink composition of the present invention, when ink-jet printed onto recording medium, allows its coloring matter's intrinsic color to be accurately represented on the recording medium with rich color rendition.