摘要:
Disclosed is a toner for developing an electrostatic latent image, said toner having a BET specific surface area of not less than 5m.sup.2 /g and a particle size distribution (2SD) of not more than 5 .mu.m.
摘要:
Provided can be easily producible toner containing polyester resin particles, exhibiting excellent fixability and fine line reproduction, in which high quality images can stably be formed for a long duration, the toner manufacturing method, and the image forming method. Also disclosed is a manufacturing method of toner possessing the steps of conducting a polymerization process for acquiring polyester resin particles via condensation-polymerization of carboxylic acid and alcohol employing oil droplets after forming the oil droplets including a polymerizable composite containing at least one kind of carboxylic acid with divalence or more and at least one kind of alcohol with divalence or more in an aqueous medium containing a surfactant including a compound having a long chain hydrocarbon group and acidic group, and conducting a coagulation process for acquiring toner particles by coagulating at least the polyester particles in the aqueous medium.
摘要:
A toner for electrophotography is disclosed. The resin binder is obtained by fusing fine resin particles comprising a crystalline material and amorphous polymer in a water-based medium. The crystalline material preferably has a melting point of 60 to 130° C., a number average molecular weight of 1,500 to 15,000, and a melt viscosity at the melting point +20° C. of not more than 100 Pa·s, and the amorphous polymer is preferably composed of a radically polymerizable monomer.
摘要:
Provided can be easily producible toner containing polyester resin particles, exhibiting excellent fixability and fine line reproduction, in which high quality images can stably be formed for a long duration, the toner manufacturing method, and the image forming method. Also disclosed is a manufacturing method of toner possessing the steps of conducting a polymerization process for acquiring polyester resin particles via condensation-polymerization of carboxylic acid and alcohol employing oil droplets after forming the oil droplets including a polymerizable composite containing at least one kind of carboxylic acid with divalence or more and at least one kind of alcohol with divalence or more in an aqueous medium containing a surfactant including a compound having a long chain hydrocarbon group and acidic group, and conducting a coagulation process for acquiring toner particles by coagulating at least the polyester particles in the aqueous medium.
摘要:
A toner for developing electrostatic latent image is disclosed. The toner comprise of particles having a volume average particle diameter of from 3 to 8 &mgr;m, and said resin is obtained by either emulsion polymerization, mini-emulsion polymerization employing or suspension polymerization employing thioglycerin or at least one compound selected from compounds represented by the Formula (1) as the chain transfer agent. HS—R1—COOR2 (1) In the formula, R1 is an aliphatic group having carbon atoms from 1 to 10, which may have a substituent, and R2 is an aliphatic group having carbon atoms from 1 to 15, which may have a substituent.
摘要:
An electrophotographic toner for electrostatic image development which is capable of obtaining a high chroma full-color image exhibiting clear color without color contamination and excellent light stability is disclosed, comprising a resin and a colorant, wherein the colorant comprises a pigment of C.I. Pigment Blue 76. There are also disclosed a full-color toner kit and an image forming method by use of the toner.
摘要:
Disclosed are a toner for developing an electrostatic image, a full color toner kit and an image formation method layer, the toner comprising at least a resin and a colorant, wherein the colorant includes quinacridone pigment having a number average primary particle size of from 30 to 150 nm and having a ratio of a long axis length to a short axis length of from 1.0 to 2.0.
摘要:
A interferometer type polarization beam combiner and splitter, which can combine or split polarized light over a wide band, is provided. The interferometer type polarization beam combiner and splitter includes: an optical splitter; an optical coupler; an optical path length difference imparting unit, which includes a plurality of optical waveguides arranged between the optical splitting unit and the optical coupling unit; one or two input/output ports connected to the optical splitter; and two input/output ports connected to the optical coupler. A half-integer of a wavelength of λc is set as a normalized phase difference, for the optical path length difference imparting unit, between two polarization states, and means for generating a difference in refractive index dispersion is provided between the optical waveguides of the optical path length difference imparting unit, so that the change rate of the transmittance with respect to wavelength is suppressed for the two polarization states.
摘要:
A magnetic sensor having first to fourth magneto-resistive elements, where the first and second magneto-resistive elements are connected at respective ends through a first connecting portion in a central region, and the third and fourth magneto-resistive elements are connected at respective ends through a second connecting portion that is parallel to the first connecting portion. The first and fourth magneto-resistive elements are connected at respective other ends through a third connecting portion, and the second and third magneto-resistive elements are connected at respective other ends through a fourth connecting portion. Depending on an external signal magnetic field, resistance values of the first and third magneto-resistive elements change in a same increasing or decreasing direction, whereas resistance values of the second and fourth magneto-resistive elements change in an increasing or decreasing direction opposite to the direction of the first and third magneto-resistive elements.