JP2006235615A5

JP2006235615A5 -

Info

Publication number: JP2006235615A5
Application number: JP2006016449A
Authority: JP
Filing date: 2006-01-25
Publication date: 2009-09-10
Anticipated expiration: 2026-01-25

Claims

A toner having toner particles containing at least a binder resin, a colorant, and a release agent,
The loss tangent (tan δ) of the toner has a minimum value 1 and a maximum value 1 at 70 ° C. or more and less than 110 ° C., and a maximum value 2 at 140 ° C. or more and less than 200 ° C.,
The loss elastic modulus G ″ (140 ° C.) of the toner at 140 ° C. is
1.0 × 10 ⁴ dN / m ² ≦ G ″ (140 ° C.) ≦ 2.0 × 10 ⁵ dN / m ²
And
A toner characterized in that the main component of the binder resin is a vinyl copolymer.

With respect to the loss tangent of the toner, the temperature at which the minimum value is 1 is higher than the temperature at which the maximum value is 1, the minimum value 1 is in the temperature range of 80 ° C. or more and less than 110 ° C., and the maximum value 1 is 70 ° C. or more and less than 100 ° C. The toner according to claim 1, wherein the toner is in a temperature range of

The average circularity (S) of the toner is
0.960 ≦ S ≦ 0.995
The toner according to claim 1, wherein the toner is a toner.

The content (A) of the release agent with respect to 100 parts by mass of the binder resin is
The toner according to claim 1, wherein 2 parts by mass ≦ A ≦ 20 parts by mass.

The toner according to claim 1, wherein the toner particles are formed in water.

A charging step of charging the electrostatic latent image carrier using a charging member to which a voltage is applied from the outside; a latent image forming step of forming an electrostatic latent image on the charged electrostatic latent image carrier; Toner layer forming step for regulating the toner layer on the toner carrier; development for developing the electrostatic latent image by the toner layer carried on the surface of the toner carrier to form the toner image on the electrostatic latent image carrier A transfer step of transferring a toner image to a transfer material with or without an intermediate transfer member; an image forming method having at least a fixing step of fixing the toner image on the transfer material,
The toner has toner particles containing at least a binder resin, a colorant, and a release agent;
The loss tangent (tan δ) of the toner has a minimum value 1 and a maximum value 1 at 70 ° C. or more and less than 110 ° C., and a maximum value 2 at 140 ° C. or more and less than 200 ° C.,
The loss elastic modulus G ″ (140 ° C.) of the toner at 140 ° C. is
1.0 × 10 ⁴ dN / m ² ≦ G ″ (140 ° C.) ≦ 2.0 × 10 ⁵ dN / m ²
And
An image forming method, wherein a main component of the binder resin is a vinyl copolymer.

The image forming method according to claim 6, wherein the toner is the toner according to claim 2.

A process cartridge having toner used in an image forming method using toner and a toner container containing the toner ,
The toner has toner particles containing at least a binder resin, a colorant, and a release agent;
The loss tangent (tan δ) of the toner has a minimum value 1 and a maximum value 1 at 70 ° C. or more and less than 110 ° C., and a maximum value 2 at 140 ° C. or more and less than 200 ° C.,
The loss elastic modulus G ″ (140 ° C.) of the toner at 140 ° C. is
1.0 × 10 ⁴ dN / m ² ≦ G ″ (140 ° C.) ≦ 2.0 × 10 ⁵ dN / m ²
And
A process cartridge, wherein a main component of the binder resin is a vinyl copolymer.

The process cartridge according to claim 8, wherein the toner is the toner according to claim 2.