Abstract:
Provided is a toner including toner base particles and an external additive, wherein each of the toner base particles includes a binder resin, a release agent, and silica, an average abundance ratio (Xsurf) of the silica on a region adjacent to a surface of the toner base particle is from 70% through 90%, and a projected area average value S(180) per particle of the toner when the toner is heated to 180° C. and a projected area average value S(30) per particle of the toner when the toner is 30° C. satisfy Formula (1) below, 1.4≤S(180)/S(30)≤1.7 Formula (1).
Abstract:
A processing fluid contains a water soluble cation polymer having a quaternary ammonium cation in the main chain, either of one of phosphoric acid-based inorganic salt and p-tert-butyl benzoate, and water, wherein the phosphoric acid-based inorganic salt is either of one of disodium monohydrogen phosphate, sodium dihydrogen phosphate, sodium polyphosphate, dipotassium monohydrogen phosphate, and potassium dihydrogen phosphate, wherein the water soluble cation polymer accounts for 40% by weight to 60% by weight.
Abstract:
To provide an image forming method, including: a pre-treatment liquid application step for applying a pre-treatment liquid on a recording medium including a substrate and a coating layer at least on one surface of the substrate, wherein the pre-treatment liquid is applied on a surface of the recording layer with the coating layer! a drying step for drying the recording medium on which the pre-treatment liquid has been applied; and an image forming step for forming an image on the recording medium after drying by discharging a water-based ink by inkjet method, wherein the pre-treatment liquid includes a water-soluble cationic polymer, an ammonium salt of an organic acid and water, and wherein the water-based ink includes water and negatively charged colored particles including a colorant.
Abstract:
A processing fluid for image forming by an aqueous ink includes a flocculant to aggregate a colorant in the aqueous ink, a water-soluble organic solvent, a polymer particle, and water. The polymer particle has a core-shell structure with a core portion including a wax and a shell portion having a lower critical solution temperature of 30 degrees C. or higher.
Abstract:
An ink including water, a water-soluble organic solvent, a resin-coated pigment coaled with a resin (A), and a resin emulsion including a resin (B) is provided. The resin (B) has the same composition as the resin (A) and a volume average particle diameter of from 8 to 19 nm. The total content rate of the resin (A) and the resin (B) in the ink ranges from 2% to 11% by mass. The content of the resin (B) ranges from 30% to 55% by mass of the total content of the resin (A) and the resin (B).
Abstract:
A pre-processing fluid contains water, a water soluble organic solvent, a water soluble flocculant, a compound represented by C6F13—CH2CH2O(CH2CH2O)nH Chemical formula 1, where n represents an integer of from 1 to 40, and a compound represented by HOR1R3C—(CH2)m—CR2R4OH Chemical formula 2, where R1 and R2 each, independently represent alkyl groups having 3 to 6 carbon atoms, R3 and R4 each, independently represent methyl groups or ethyl groups, and m represents an integer of from 1 to 6.
Abstract:
An inkjet recording method includes imparting a pre-processing fluid to a coated layer provided on at least one surface of the substrate of a recording medium, drying the pre-processing fluid, and forming an image on the recording medium by ejecting an aqueous ink thereon. The pre-processing fluid contains a hydrosoluble organic solvent, a flocculating agent formed of a quaternary salt of an adduct of alkyl amine.epichlorohydrine represented by the following chemical formula 1, and a nonion-based surfactant represented by the following chemical formula 2, wherein the aqueous ink comprises a colorant, a hydrosoluble organic solvent, and a fluorine-containing surfactant represented by the following chemical formula 3 or 4: C6F13—CH2CH2O(CH2CH2O)nH (3) Chemical formula 3 CnF2n+1—CH2CH(OH)CH2—O—(CH2CH2O)a—Y (4) Chemical formula 4
Abstract:
Provided is a toner including toner base particles and an external additive, wherein each of the toner base particles includes a binder resin, a release agent, and silica, an average abundance ratio (Xsurf) of the silica on a region adjacent to a surface of the toner base particle is from 70% through 90%, and a projected area average value S(180) per particle of the toner when the toner is heated to 180° C. and a projected area average value S(30) per particle of the toner when the toner is 30° C. satisfy Formula (1) below, 1.4≤S(180)/S(30)≤1.7 Formula (1).
Abstract:
A toner includes a toner base particle including a binder resin; a release agent; and an inorganic fine particle, and an external additive. The inorganic fine particle is silica having an average abundance ratio at the surface of the toner base particle of from 70% to 90%. The toner base particle has a BET specific surface area of from 1.0 m2/g to 2.5 m2/g after the external additive is removed from the toner.
Abstract:
An inkjet recording method includes imparting a pre-processing fluid to a coated layer provided on at least one surface of the substrate of a recording medium, drying the pre-processing fluid, and forming an image on the recording medium by ejecting an aqueous ink thereon. The pre-processing fluid contains a hydrosoluble organic solvent, a flocculating agent formed of a quaternary salt of an adduct of alkyl amine.epichlorohydrine represented by the following chemical formula 1, and a nonion-based surfactant represented by the following chemical formula 2, wherein the aqueous ink comprises a colorant, a hydrosoluble organic solvent, and a fluorine-containing surfactant represented by the following chemical formula 3 or 4: C6F13—CH2CH2O(CH2CH2O)nH (3) Chemical formula 3 CnF2n+1—CH2CH(OH)CH2—O—(CH2CH2O)a—Y (4) Chemical formula 4.