摘要:
The present invention provides an electrophotographic photoconductor capable of reducing latent electrostatic image stability defects caused by adhesion/adsorption of an electric discharge product formed by a charger in an image forming process, degradation of charge transportability and cleaning defects caused when removing a residual toner. The electrophotographic photoconductor has a conductive substrate, and a photosensitive layer which contains at least a binder, a charge generating material and a charge transporting material and is formed on the substrate, wherein the photosensitive layer contains an injection material composed of at least any one of one wax selected from paraffin waxes, Fisher-Tropsh waxes, polyolefin waxes and a polyorganosiloxane compound in an area from the surface of the photosensitive layer to 50% of the thickness thereof in the thickness direction of the electrophotographic photoconductor, and the content of the injection material is 3% by mass or more to the content of the binder.
摘要:
An image bearing member is provided, including a substrate and a surface layer formed by optically curing at least a radical polymerizable compound with a charge transport structure and a radical polymerizable monomer without a charge transport structure, wherein the transmission factor of the surface layer for light having a wavelength by 25 nm longer than an absorption end wavelength of photo-absorption spectrum of the surface layer prior to optical curing is not less than 65%.
摘要:
It is a main object of the present invention to provide a volume hologram layer with good foil cutting property which is used for a volume hologram transfer foil and the like. The present invention provides a volume hologram layer wherein when the layer thickness thereof is 20 μm, breaking strength is in a range from 10 MPa to 30 MPa and breaking strain is in a range from 0.1% to 3% at 25° C., and breaking strength is in a range from 0.1 MPa to 1 MPa and breaking strain is in a range from 0.1% to 5% at 130° C., to thereby solve the above problem.
摘要:
An image bearing member is provided, including a substrate and a surface layer formed by optically curing at least a radical polymerizable compound with a charge transport structure and a radical polymerizable monomer without a charge transport structure, wherein the transmission factor of the surface layer for light having a wavelength by 25 nm longer than an absorption end wavelength of photo-absorption spectrum of the surface layer prior to optical curing is not less than 65%.
摘要:
An image bearing member including a substrate, a photosensitive layer, provided overlying the substrate and a cross linking charge transport layer provided overlying the photosensitive layer, wherein the area of the photosensitive layer which is most distant from the substrate contains a charge transport material, a binder resin and a filler.
摘要:
The present invention relates to a counterfeit-proof volume hologram multilayer structure capable of securely preventing a counterfeiter from replicating a volume hologram recorded therein. The multilayer structure comprises a transparent surface protective layer, a volume hologram layer, and an adhesive layer which are sequentially laminated and is characterized in that particles having particle diameter of 350 nm or more are dispersed in at least one of the transparent surface protective layer, the volume hologram layer, and the adhesive layer and that the refractive index ratio (nF/nB) is set to be not less than 1.05 or not greater than 0.95, wherein nF is the refractive index of the particles and nB is the refractive index of the medium in which the particles are dispersed, or characterized in that at least either the refractive index ratio (nP/nH) between the transparent surface protective layer and the volume hologram layer or the refractive index ratio (nH/nA) between the volume hologram layer and the adhesive layer is set to be not less than 1.08, wherein nP is the refractive index of the transparent surface protective layer, nH is the refractive index of the volume hologram layer, and nA is the refractive index of the adhesive layer.
摘要:
An image forming apparatus including at least a photoreceptor; and a cleaning blade formed of a strip-shaped elastic blade to contact an edge line to the surface of the photoreceptor, wherein the photoreceptor includes a surface layer comprising a particulate material, and the edge line of the cleaning blade includes a substrate of the elastic blade; a mixed layer having a thickness not less than 1.0 μm, formed of the substrate and at least one of an acrylic resin and a methacrylic resin, located at the surface of the substrate; and a surface layer having a thickness not less than 0.1 μm, formed of at least one of an acrylic resin and a methacrylic resin, located on the surface of the substrate.
摘要:
An image bearing member having an electroconductive substrate, a photosensitive layer overlying the electroconductive layer, and a cross-linked surface layer overlying the photosensitive layer, which contains a cross-linked polymer and a first compound consisting essentially of a nitrogen atom and a phenyl group, biphenyl group, and condensed polycyclic hydrocarbon group, or a second compound consisting essentially of a nitrogen atom and hydrogen atoms, halogen atoms, alkyl groups, alkoxy groups, or aryl groups, substituted or non-substituted alkyl groups, substituted or non-substituted alkoxy groups, substituted or non-substituted aralkyl groups, substituted or non-substituted aryl group, substituted or non-substituted alkylene groups, cyano groups, nitro groups, or —OCO═CH2R16, in which R16 represents a hydrogen atom, a substituted or non-substituted alkyl group, a substituted or non-substituted alkoxy group, or a substituted or non-substituted aryl group.
摘要:
An image forming apparatus including at least a photoreceptor; and a cleaning blade formed of a strip-shaped elastic blade to contact an edge line to the surface of the photoreceptor, wherein the photoreceptor includes a surface layer comprising a particulate material, and the edge line of the cleaning blade includes a substrate of the elastic blade; a mixed layer having a thickness not less than 1.0 μm, formed of the substrate and at least one of an acrylic resin and a methacrylic resin, located at the surface of the substrate; and a surface layer having a thickness not less than 0.1 μm, formed of at least one of an acrylic resin and a methacrylic resin, located on the surface of the substrate.
摘要:
An image forming apparatus including an image bearing member having a surface layer A having a surface hardness of 200 N/mm2 or greater, the surface layer A containing fillers made of a metal oxide and a cleaning blade having a reed-like elastic blade having a front edge portion to remove toner from the surface layer A in motion while the front edge portion is in contact with the surface layer A, the front edge portion having a laminate structure formed of a substrate of the elastic blade, a mixed layer of the substrate and an acrylic and/or methacrylic resin, the mixed layer having a thickness of 1.0 μm or greater, and a surface layer B having an acrylic and/or methacrylic resin, the surface layer B having a thickness of 0.1 μm or greater.
摘要翻译:一种图像形成装置,包括具有表面硬度为200N / mm 2或更大的表面层A的图像承载部件,所述表面层A包含由金属氧化物制成的填料和具有筘状弹性刮板的清洁刮板,所述刮板具有 前边缘部分,以在前边缘部分与表面层A接触的同时从表面层A移动调色剂,前边缘部分具有由弹性刮板的基底形成的层叠结构,基底的混合层 和丙烯酸和/或甲基丙烯酸树脂,厚度为1.0μm以上的混合层和具有丙烯酸和/或甲基丙烯酸树脂的表面层B,表面层B的厚度为0.1μm以上。