摘要:
An apparatus for producing toner for developing an electrostatic latent image, is provided with an inlet section to receive a slurry containing toner particles, impure fine particles having a specific gravity smaller than that of the toner particles and aqueous medium; a centrifugal concentrating device for applying centrifugal force to the slurry and having a precipitating plate with which the toner particles are precipitated from the slurry and an accommodating section to accommodate a concentrated slurry containing the precipitated toner particles, and an outlet section to deliver impure fine particles and aqueous medium.
摘要:
Disclosed is a toner for developing an electrostatic latent image, the toner containing polymer particles having a carboxyl group on the surface thereof in the range of5.times.10.sup.-11 mol/cm.sup.2 .ltoreq.A.ltoreq.3.times.10.sup.-9 mol/cm.sup.2wherein A represents an amount of the carboxyl group obtained using a conductometric titration method.
摘要:
Toner for electrostatic latent image development includes at least a resin, a coloring agent and a crystalline compound, wherein the toner particle has sea-island structure and the crystalline compound is n-paraffin of particular structure.
摘要:
A toner for forming an electrophotographic image is disclosed. The toner particle contains at least two inorganic salts including an inorganic salt comprising a positive ion having a first valence and an inorganic salt comprising a positive ion having a second valence different from the first valence, a total amount of the inorganic salt having the first valence is greatest among the inorganic salts in the toner particle, and a total amount of the inorganic salt having the second valence is second greatest among the inorganic salts in the toner particle.
摘要:
A toner for developing a static image comprising at least a resin, colorant and crystalline substance is disclosed. The toner particle has a domain-matrix structure and the domain has an average of the ratio of the major axis to the minor axis of from 1.5 to 2.5 when the domain is approximated by an ellipse.
摘要:
A process for preparing a color toner for developing an electrostatic image comprising a step of polymerizing monomers to obtain resin particles, wherein the color toner comprises primary particles or secondary particles of resin particles, and a metal complex dye represented by the following formula (1) or formula (2), wherein, X1 and X3 each are a group of atoms bonding with each other which can form at least bidentate coordination bond with a metal ion; Y1 represents an aromatic hydrocarbon ring, a 5- or 6-membered heterocyclic ring or —L4═Y2; Y2 and Y3 each represent an aromatic hydrocarbon ring or a 5- or 6-membered heterocyclic ring; L1 and L4 each represent a substituted or an unsubstituted methine group or a nitrogen atom; L2 and L3 each represent a substituted or an unsubstituted methine group; M represents a metal ion which can form at least a bidentate coordination bond with said group of atoms bonding with each other represented by X1 and X3; m represents an integer of 0, 1, 2 or 3; n1 and n2 each represent an integer of 1, 2 or 3.
摘要:
A toner for developing an electrostatic image is disclosed. The toner is composed of association of a plurality of fine polymer particles, and the total volume of pores having a diameter of not more than 0.1 .mu.m on the toner surfaces is not more than 30 percent of the total toner volume. An image forming method employing the same is also disclosed. A toner which does not result in an unstable charge amount over an extended period of use can be obtained.
摘要:
Toner for electrostatic latent image development includes at least a resin, a coloring agent and a crystalline compound, wherein the toner particle has sea-island structure and the crystalline compound is n-paraffin of particular structure.
摘要:
An electrostatic image developing toner is disclosed. The toner has a domain-matrix structure; the average of the horizontal FERE diameter of the part corresponding to said domain is from 200 to 900 nm; and the variation coefficient of said horizontal FERE diameter is 40 percent or less.
摘要:
A toner for developing an electrophotographic image and a method for forming an electrophotographic image using the toner. The toner comprises a binder and a colorant, in which a volume average diameter of the toner particles, Dv in .mu.m, and a storage modulus at 170.degree. C. thereof, G'.sub.170 in dyne/cm.sup.2, satisfy the following relation;-(2/15)Dv+3.5.ltoreq.log G'.sub.170 .ltoreq.-(3/15)Dv+5.5.In the method, an electrophotographic image is developed by the above-mentioned toner and fixed by a fixing roller covered with a surface layer comprising a fluorine-containing resin.