Abstract: A printing method involves applying a processing fluid containing a multivalent metal salt to a print medium, to form a processing fluid layer; applying a white ink containing a white coloring material and water to form a white ink layer; and applying a non-white ink containing a non-white coloring material and water to the white ink layer, after securing a time interval of 0.5 seconds or longer after the white ink is applied without drying with a drying unit after the white ink is applied. The print medium has a Cobb water absorption of 20 g/m2 or greater but 75 g/m2 or less when contacted with water for 120 seconds, where the Cobb water absorption is stipulated by JIS-P8140.

Abstract: An ink set includes a non-white ink and a white ink. The non-white ink contains water, a coloring material, an organic solvent, and an acetylene glycol compound. The white ink contains water, a coloring material, an organic solvent, and a compound represented by General formula (1) below where R represents a hydrogen atom or a methyl group, n1 and n2 represent integers of from 1 through 7, k represents an integer of from 0 through 5, and m represents an integer of from 1 through 20.

Abstract: Provided is an image printing method including a first processing fluid applying step of applying a first processing fluid containing a multivalent metal salt to a predetermined region of a print medium, and a second processing fluid applying step of applying a second processing fluid containing a resin emulsion containing an anionic functional group to the predetermined region of the print medium to which the first processing fluid is applied and any other region of the print medium to which the first processing fluid is not applied.

Abstract: An ink contains water, Pigment Red 269, a compound represented by the following Chemical formula (1), and at least one of a silicone compound and an acetylene glycol compound, where the proportion of the compound represented by the following Chemical formula (1) to the Pigment Red 269 is 2.

Abstract: A method of printing includes applying a processing fluid to a substrate and inkjet discharging a white ink to the substrate onto which the processing fluid has been applied, wherein the processing fluid contains a tri-valent metal salt, a nonionic urethane resin, and water and the white ink contains a white pigment, a resin, and water.

Abstract: An ink contains organic solvents containing 1,2-propane diol and 1,2-hexane diol, a pigment, water, and a polyoxyethylene ether compound.

Abstract: Provided is a processing fluid including nonionic acrylic resin particles, and a polyvalent metal salt. A volume average particle diameter of the nonionic acrylic resin particles is 100 nm or greater but 300 nm or less. A proportion of the nonionic acrylic resin particles in the processing fluid is greater than 2.0% by mass. An average reflectance of the processing fluid to light having a wavelength of 400 nm or greater but 700 nm or less is 70% or greater.

Abstract: A method of printing includes applying a processing fluid to a substrate and inkjet discharging a white ink to the substrate onto which the processing fluid has been applied, wherein the processing fluid contains a tri-valent metal salt, a nonionic urethane resin, and water and the white ink contains a white pigment, a resin, and water.

Abstract: A printing method includes: a processing fluid applying step of applying a processing fluid containing silica and a multivalent metal salt to a print medium; and an ink applying step of applying an ink containing a coloring material and water to the print medium. The print medium has a Cobb water absorption of 20 g/m2 or greater but 75 g/m2 or less when contacted with water for 120 seconds. The Cobb water absorption is stipulated by JIS-P8140.

Abstract: Provided is a processing fluid including: water; a flocculant; and a urethane resin. A dry film formed of the processing fluid and having an average thickness of 500 micrometers has a tensile strength of 3.5 MPa or greater and a breaking elongation of 80% or greater.

Abstract: An ink contains water, Pigment Red 269, a compound represented by the following Chemical formula (1), and at least one of a silicone compound and an acetylene glycol compound, where the proportion of the compound represented by the following Chemical formula (1) to the Pigment Red 269 is 2.

Abstract: An image-capturing apparatus for capturing an image includes an imaging device, configured to obtain an image signal, a light-intensity estimator, configured to estimate a light intensity outside a shutter that limits an image capturing area of the imaging device in a state where the shutter is closed, and an exposure adjustor, configured to adjust an exposure of the imaging device located inside the shutter according to the estimated light intensity.

Abstract: A compound obtained through Michael addition reaction of an ?-aminoacetophenone skeleton-containing compound (I) represented by the following general formula (1) and a reactive compound (II) having a function as a Michael acceptor is used as a photopolymerization initiator. In the general formula (1), R1 represents an aliphatic group, R2 to R3 each independently represent an aliphatic group, etc., R4 to R7 each independently represent a hydrogen atom, X1 represents a single bond or a C1-6 alkylene group, X2 represents a carbonyl group, Y1 and Y2 represent a group represented by the following general formula (2). However, when Y1 and Y2 both have a structure represented by the general formula (2), X5 in at least one of them is —NH—. In the general formula (2), X3 and X4 each independently represent a linear or branched alkylene group having 2 to 6 carbon atoms, X5 represents a single bond, —O— or —NH—.

Abstract: A compound obtained through Michael addition reaction of an ?-aminoacetophenone skeleton-containing compound (I) represented by the following general formula (1) and a reactive compound (II) having a function as a Michael acceptor is used as a photopolymerization initiator. In the general formula (1), R1 represents an aliphatic group, R2 to R3 each independently represent an aliphatic group, etc., R4 to R7 each independently represent a hydrogen atom, X1 represents a single bond or a C1-6 alkylene group, X2 represents a carbonyl group, Y1 and Y2 represent a group represented by the following general formula (2). However, when Y1 and Y2 both have a structure represented by the general formula (2), X5 in at least one of them is —NH—. In the general formula (2), X3 and X4 each independently represent a linear or branched alkylene group having 2 to 6 carbon atoms, X5 represents a single bond, —O— or —NH—.

Abstract: An image-capturing apparatus for capturing an image includes an imaging device, configured to obtain an image signal, a light-intensity estimator, configured to estimate a light intensity outside a shutter that limits an image capturing area of the imaging device in a state where the shutter is closed, and an exposure adjustor, configured to adjust an exposure of the imaging device located inside the shutter according to the estimated light intensity.

Abstract: A cover surrounds an imaging apparatus of capturing an image. The cover includes a first section that forms a part of the cover and includes a first joint end, a second section that forms a part of the cover and includes a second joint end, and a joint that is provided between the first joint end of the first section and the second joint end of the second section. An incidence angle of light which is adapted to be incident to the joint from the imaging apparatus is smaller than a predetermined angle which does not cause total reflection.

Abstract: Disclosed is an active energy ray-curable ink composition comprising a coloring agent, a binder resin, and a radically polymerizable varnish and/or a radically polymerizable monomer as main components. The coloring agent is a modified pigment wherein the surface of a pigment (A) is provided with a polymer (P) which is obtained by polymerizing a polymer (B), which is soluble in nonaqueous solvents, with at least one polymerizable unsaturated monomer (C), which is originally soluble in nonaqueous solvents but becomes insoluble or poorly soluble after polymerization. Also disclosed is a printed matter which has a coating film obtained by curing and drying the active energy ray-curable ink composition.

Abstract: Disclosed is an active energy ray-curable ink composition comprising a coloring agent, a binder resin, and a radically polymerizable varnish and/or a radically polymerizable monomer as main components. The coloring agent is a modified pigment wherein the surface of a pigment (A) is provided with a polymer (P) which is obtained by polymerizing a polymer (B), which is soluble in nonaqueous solvents, with at least one polymerizable unsaturated monomer (C), which is originally soluble in nonaqueous solvents but becomes insoluble or poorly soluble after polymerization. Also disclosed is a printed matter which has a coating film obtained by curing and drying the active energy ray-curable ink composition.