Abstract:
Naphthol AS-pigments of formula (I), wherein R1 represents methyl or C3-C8-alkyl; R2 represents hydrogen or C1-C4-alkyl; Y represents C1-C4-alkyl or C1-C4-alkoxy; and Z′ represents hydrogen, phenyl, naphthyl, or substituted phenyl or substituted naphthyl, wherein the number of substituents can be 1, 2, 3 or 4 and are selected from the group consisting of halogen, nitro, cyano, C1-C4-alkoxycarbonyl, carbamoyl, C1-C4-alkylcarbamoyl, di(C1-C4)-alkylcarbamoyl, phenylcarbamoyl, sulfamoyl, phenylsulfannoyl, C1-C4-alkylsulfamoyl, di(C1-C4)-alkylsulfamoyl, C1-C4-acylamino, C1-C4-alkyl and C1-C4-alkoxy.
Abstract:
A coloring compound with a structure represented by the following formula (1): wherein R1 to R3 independently denote a hydrogen atom, an unsubstituted amino group, or an amino group with a substituent, R4 to R6 independently denote a hydrogen atom, an alkyl group, an unsubstituted aryl group, or an aryl group with a substituent, A1 to A3 independently denote a hydrogen atom, an alkyl group, an alkoxy group, an aryl group, a carbamoyl group, an alkoxycarbonyl group, a carboxylic acid amide group, an alkoxysulfonyl group, a sulfonic acid amide group, a trifluoromethyl group, a cyano group, a hydroxy group, a nitro group, an amino group, or a halogen atom, and the aryl group, the carboxylic acid amide group, the sulfonic acid amide group, and the amino group in A1 to A3 may have a substituent, and n denotes an integer in the range of 1 to 5.
Abstract:
Provided is a yellow toner which provides a sharper color than ever before in small amounts and which has excellent light resistance. A yellow toner comprising a binder resin and a yellow colorant, wherein a compound A represented by the following general formula (1) and a compound B represented by the following general formula (2) are contained as the yellow colorant,, and wherein a total content of the compound A and the compound B is from 3 to 30 parts by mass with respect to 100 parts by mass of the binder resin, and a mass ratio of the content of the compound A to the content of the compound B (compound A/compound B) is from 0.8 to 20:
Abstract:
A yellow toner is provided. The yellow toner includes toner particles containing a binder resin and a colorant containing at least one compound selected the group consisting of compounds given by the following formulae (1), (2), and (3) for used in a recording method such as an electrophotographic method, an electrostatic recording method, a magnetic recording method, or a toner jet method, and to a method for producing the toner: wherein in the formulae (1), (2), and (3) the R groups are as set forth in the specification.
Abstract:
Provided is a toner comprising a toner particle including a binder resin, an amorphous polyester, and a colorant, wherein the binder resin includes a vinyl resin, the toner has a softening point of at least 110° C. and not more than 140° C., an amount of the amorphous polyester is at least 4.0 parts by mass and not more than 30.0 parts by mass with respect to 100 parts by mass of the binder resin, and a temperature T at which an area increasing rate of one toner particle sample becomes 1.40, is not more than 110° C., and a slope of the area increasing rate with respect to a temperature in the range of the area increasing rate of 1.40 to 2.00 is not more than 0.07.
Abstract:
An electrostatic charge image developing white toner includes a white toner particle and a yellow toner particle that includes an organic yellow pigment, wherein a content ratio (by number) of the yellow toner particles to all of toner particles included in the toner is from 0.01% by number to 3% by number.
Abstract:
The present invention relates to an image forming method using a yellow toner, a magenta toner, and a cyan toner, in which the yellow toner, the magenta toner, and the cyan toner respectively contain toner base particles containing a binder resin containing an amorphous polyester resin as a main component and a crystalline resin, aluminum, and a colorant, and the concentration of aluminum in the toner base particles of the yellow toner measured by high-frequency inductively coupled plasma emission spectral analysis satisfies a specific relation. According to the present invention, an image forming method and a toner set which can improve the thin paper separation property while maintaining favorable low temperature fixability are provided.
Abstract:
An object to be achieved by embodiments is to provide a toner having excellent color reproducibility, light resistance, coloring power, low-temperature fixability, storage stability, and long life property, a method for producing the same, a toner cartridge, and an image forming apparatus. A toner according to an embodiment includes toner particles containing a coloring agent, a binder resin, and a specific ester wax. The coloring agent contains at least one pigment (X) selected from C.I. Pigment Red 48, C.I. Pigment Red 48:1, C.I. Pigment Red 48:2, C.I. Pigment Red 48:3, C.I. Pigment Red 48:4, and C.I. Pigment Red 48:5, and C.I. Pigment Red 122 (Y), and the mass ratio of the component (X) to the component (Y) is from 30:70 to 60:40.
Abstract:
A pigment dispersion containing a pigment, a non-water-soluble solvent, a compound in which an specific azo skeleton structure is bonded to a specific polymer having a monomer unit given, and a polymer compound having a monomer unit that contains a structure selected from the partial structures given by the specific formulas (3) and (4).
Abstract:
The present invention provides a compound capable of improving the dispersibility of color pigments in a water-insoluble solvent; and a pigment-dispersing agent. The present invention also provides a pigment composition, a pigment dispersion, and a toner, which have satisfactory tinting strength.The present invention provides the compound containing a polymer having a monomer unit having a specific chemical structure, the compound having a moiety also having a specific structure.