摘要:
An electrophotographic image forming method is disclosed. In the method each of a plurality of toner images formed on the latent image bearing body is sequentially onto an intermediate transfer body, and the transferred image on the intermediate transfer body is transferred to an image forming support, and fixed using a heating roller fixing system, and the toner satisfies ratio (Dv50/Dp50) is from 1.00 to 1.15; ratio (Dv75/Dp75) is from 1.00 to 1.20; and the content ratio of toner having a particle diameter of at most 0.7null(Dp50) is less than or equal to 10 percent by number. Dv50, Dp50, Dv75 and Dp75 are specified in the specification.
摘要:
A toner for electrophotography contains a binder resin and a colorant, the toner for electrophotography has a tensile fracture strength of 10-1400 (N/m2) under 10 kg/cm2 compression, and a loose apparent density of 0.10-0.50 (g/cm3).
摘要翻译:用于电子照相的调色剂包含粘合剂树脂和着色剂,用于电子照相的调色剂在10kg / cm2压缩下的拉伸断裂强度为10-1400(N / m 2),并且松散的表观密度为0.10-0.50(g / cm 3) )。
摘要:
The present invention relates to a negatively chargeable toner, comprising: toner particles prepared by means of a wet granulation method; and external additives externally added to the toner particles, wherein the external additives comprises a first hydrophobic silica having a mean primary particle size of 5 nm to 18 nm, a second hydrophobic silica having a mean primary particle size of 18 nm to 50 nm, which is greater than that of the first hydrophobic silica, and a hydrophobic titanium oxide having a mean primary particle size of 10 nm to 40 nm, and a full color image-forming method using the negatively chargeable toner.
摘要:
An image formation method for forming an image is proposed, which uses an image formation apparatus capable of performing (1) multi-color image formation and printing by superimposing toner images with different colors by use of a plurality of color toners with different colors, including at least a black toner, and (2) monochrome image formation and printing, using only a black toner, with a maximum transferable amount of each color toner onto the image being in a range of 4null10null3 kg/m2 to 8null10null3 kg/m2, wherein an image glossiness (GKC) obtained by the black toner in the maximum transferable amount thereof at the multi-color image printing, an image glossiness (GCC) obtained by each of the color toners other than the black toner in the maximum transferable amount thereof at the multi-color image printing, and an image glossiness (GKM) obtained by the black toner in the maximum transferable amount thereof at the monochrome image printing satisfy a particular relationship as described in the specification. In addition, the above toners and a printed matter prepared by this image formation method are proposed.
摘要:
In a two-component development system containing a toner and a carrier, an a-Si photosensitive member having a diameter of from 20 mm to 80 mm is used, the photosensitive member is electrostatically charged to have a surface potential of from 300 to 450 V (absolute value), and yellow, magenta, cyan and black toners are used each of which have a weight-average particle diameter of from 4.0 nullm to 10.0 nullm, and, under a condition that the carrier of the two-component developer has a 50% average particle diameter of from 10 nullm to 80 nullm and as image density (D0.5) measured usually after the toner is fixed once when the quantity of unfixed toner on a transfer medium, M/S, is 0.5 mg/cm2, have a coloring power of from 1.0 to 1.9, and in which the difference between a maximum value and a minimum value of D0.5 of yellow, magenta, cyan and black colors is form 0 to 0.5. This makes it possible to obtain high-quality images in a high image density and a superior color reproduction.
摘要翻译:在含有调色剂和载体的双组分显影系统中,使用直径为20mm至80mm的a-Si感光构件,感光构件被静电充电以具有300至450V的表面电位 (绝对值),并且使用重均粒径为4.0μm〜10.0μm的黄色,品红色,青色和黑色调色剂,并且在双组分显影剂的载体具有 50%平均粒径为10〜80μm,并且当转印介质M / S上的未定影调色剂的量为0.5mg / cm 2时,通常在调色剂固定一次后测量的图像浓度(D0.5) 具有1.0至1.9的着色力,其中黄色,品红色,青色和黑色的最大值和最小值D0.5之间的差为0至0.5。 这使得可以以高图像密度和优异的色彩再现获得高品质图像。
摘要:
In a toner kit having i) a non-magnetic black toner having at least carbon black and ii) color toners, the black toner has a weight-average particle diameter represented by D4b and a one-point method BET specific surface area represented by Sb, and the color toners, other than the black toner, each have a weight-average particle diameter represented by D4c and a one-point method BET specific surface area represented by Sc, where the black toner and color toners satisfy the following relations (1) and (2):0.60nullD4c/D4bnull0.96,nullnullRelation (1)0.750nullSc/Sbnull1.000;nullnullRelation (2)and each have an average circularity of from 0.950 to 1.000 and a circularity standard deviation of less than 0.040 as measured with a flow type particle image analyzer.
摘要:
The present invention relates to a method for producing an image-recorded medium on the surface of a transparent substrate. The image-recorded medium comprises a fixed image formed electrographically, and the fixed image is laminated on the image-recorded medium. The production method comprises the steps of forming toner layers by laminating a plurality of toner layers on the surface of the substrate electrographically, temporarily fixing the plural toner layers, and laminating the temporarily fixed image with a laminate film.
摘要:
An oil-free process for forming a fused toner image on a receiver comprises: forming on a receiver an image comprising toner particles that contain a non-crosslinked linear polymeric binder, a colorant, and a release agent; and contacting the receiver bearing the toner particle image with a fuser member comprising a support and a release layer overlying the support. The release layer comprises a cured fluorocarbon thermoplastic random copolymer, a particulate filler comprising zinc oxide and tin oxide and a cured aminosiloxane copolymer, the cured fluorocarbon thermoplastics random copolymer containing null(CH2CF2)xnull, null(CF2CF(CF3)ynull, and null(CF2CF2)znull subunits, wherein x is from 1 to 40 or 60 to 80 mole percent, y is from 10 to 90 mole percent, z is from 10 to 90 mole percent, and xnullynullz equals 100 mole percent. The receiver in contact with the fuser member is subjected to conditions effective in the absence of a release oil for fixing the toner particle image to the receiver.
摘要:
An image forming apparatus of the present invention having a transferring particle layer forming equipment which forms a transferring particle layer prior to forming a toner layer on a surface of an image recording member, whose coagulation force among the transferring particles in the transferring particle layer is smaller than adhesive force of the transferring particle layer to the image recording member, a development equipment which forms a toner layer on a surface of the image recording member according to image information with a liquid developer in a manner that a part of the toner layer is superimposed on the transferring particle layer and a transfer equipment which transfer the toner layer to a transfer medium together with a part of the transferring particle layer. As a result, high transfer efficiency can be obtained, and an image forming apparatus which realizes high image quality is provided.