摘要:
A toner for developing an electrostatic latent image includes a binder resin, a colorant and a releasing agent. The releasing agent contains a hydrocarbon component including a linear hydrocarbon component, and the liner hydrocarbon component has a carbon number distribution and an average carbon number N. An amount of a component having a carbon number of from N−4 to N+4 in the releasing agent is 80% by mass or more based on the total mass of the hydrocarbon component of the releasing agent. An amount of a component having a carbon number of N−10 or less in the releasing agent is 0.05% by mass or less based on the total mass of the hydrocarbon component of the releasing agent, and an amount of a component having a carbon number of N+10 or more in the releasing agent is 0.05% by mass or less based on the total mass of the hydrocarbon component of the releasing agent.
摘要:
A toner for developing an electrostatic latent image includes a binder resin, a colorant and a releasing agent. The releasing agent contains a hydrocarbon component including a linear hydrocarbon component, and the liner hydrocarbon component has a carbon number distribution and an average carbon number N. An amount of a component having a carbon number of from N−4 to N+4 in the releasing agent is 80% by mass or more based on the total mass of the hydrocarbon component of the releasing agent. An amount of a component having a carbon number of N−10 or less in the releasing agent is 0.05% by mass or less based on the total mass of the hydrocarbon component of the releasing agent, and an amount of a component having a carbon number of N+10 or more in the releasing agent is 0.05% by mass or less based on the total mass of the hydrocarbon component of the releasing agent.
摘要:
A toner for developing an electrostatic image is provided, which contains at least a binder resin, a colorant and a releasing agent, the releasing agent, has an endothermic peak temperature measured by a differential scanning calorimeter of from 60 to 100° C., and an endothermic amount a of the releasing agent per unit weight (J/g) at temperatures equal to or lower than a glass transition onset temperature of the binder resin measured by a differential scanning calorimeter, a total endothermic amount b of the releasing agent per unit weight (J/g) and a volume average particle diameter c(μm) of the toner has the relationship: 0.05≦(a/b)×c≦0.6.
摘要:
The present invention provides a toner for developing an electrostatic latent image comprising of: toner particles containing at least a binder resin, a colorant and a releasing agent; wherein a volume-average particle diameter of the toner particles is in a range of about 5 to 8 μm; an average of shape factor SF1 of the toner particles is in a range of about 125 to 140; and an arithmetical mean undulation height of the surface of the toner particles at the 90% point on the cumulative distribution curve is in a range of about 0.15 to 0.25 μm. Further, the present invention provides an electrostatic latent image developer containing the toner. The invention also provides a method for producing the toner.
摘要:
The present invention provides a toner for developing an electrostatic latent image comprising of: toner particles containing at least a binder resin, a colorant and a releasing agent; wherein a volume-average particle diameter of the toner particles is in a range of about 5 to 8 μm; an average of shape factor SF1 of the toner particles is in a range of about 125 to 140; and an arithmetical mean undulation height of the surface of the toner particles at the 90% point on the cumulative distribution curve is in a range of about 0.15 to 0.25 μm. Further, the present invention provides an electrostatic latent image developer containing the toner. The invention also provides a method for producing the toner.
摘要:
An electrophotographic toner contains a resin, a colorant and a releasing agent. The releasing agent has a solidifying point of from 79° C. to 109° C., and one peak in an endothermic curve measured by a differential scanning calorimeter. A difference between temperature to give a maximum endothermic peak of the releasing agent and an end-set temperature of the releasing agent is within 10° C. A melt viscosity of the releasing agent at 110° C. is in a range of from 4 mPa·s to 9 mPa·s. The releasing agent in one particle of the toner forms 3 or more domains. Domains having a ratio of a major axis to a minor axis which is in a range of from 5 to 15 occupy 90% or more by number based on the total number of domains.
摘要:
An electrophotographic toner contains a resin, a colorant and a releasing agent. The releasing agent has a solidifying point of from 79° C. to 109° C., and one peak in an endothermic curve measured by a differential scanning calorimeter. A difference between temperature to give a maximum endothermic peak of the releasing agent and an end-set temperature of the releasing agent is within 10° C. A melt viscosity of the releasing agent at 110° C. is in a range of from 4 mPa.s to 9 mPa.s. The releasing agent in one particle of the toner forms 3 or more domains. Domains having a ratio of a major axis to a minor axis which is in a range of from 5 to 15 occupy 90% or more by number based on the total number of domains.
摘要:
A toner for developing an electrostatic image is provided, which contains at least a binder resin, a colorant and a releasing agent, the releasing agent, has an endothermic peak temperature measured by a differential scanning calorimeter of from 60 to 100° C., and an endothermic amount a of the releasing agent per unit weight (J/g) at temperatures equal to or lower than a glass transition onset temperature of the binder resin measured by a differential scanning calorimeter, a total endothermic amount b of the releasing agent per unit weight (J/g) and a volume average particle diameter c (μm) of the toner has the relationship: 0.05≦a/(b×c)≦0.6.
摘要:
The present invention provides a toner for electrophotography having a capsule structure including a core and a shell that covers the core, wherein the core contains a colorant, a releasing agent, an amorphous resin, and a block polymer containing a crystalline part and an amorphous part, the weight-average molecular weight of the block polymer is 10,000 or more, the weight-average molecular weight of the resin used in formation of the amorphous part of the block polymer is 1000 to 5000, and the weight-average molecular weight of the resin used in formation of the crystalline part of the block polymer is at least 2 times the weight-average molecular weight of the resin used in formation of the amorphous part of the block polymer, a method of manufacturing the same, a developer for electrophotography including the toner and a carrier, and an image forming method using the developer for electrophotography.
摘要:
The present invention provides a toner for electrophotography having a capsule structure including a core and a shell that covers the core, wherein the core contains a colorant, a releasing agent, an amorphous resin, and a block polymer containing a crystalline part and an amorphous part, the weight-average molecular weight of the block polymer is 10,000 or more, the weight-average molecular weight of the resin used in formation of the amorphous part of the block polymer is 1000 to 5000, and the weight-average molecular weight of the resin used in formation of the crystalline part of the block polymer is at least 2 times the weight-average molecular weight of the resin used in formation of the amorphous part of the block polymer, a method of manufacturing the same, a developer for electrophotography including the toner and a carrier, and an image forming method using the developer for electrophotography.