JP2015001560A5

JP2015001560A5 -

Info

Publication number: JP2015001560A5
Application number: JP2013124934A
Authority: JP
Filing date: 2013-06-13
Publication date: 2016-07-07
Anticipated expiration: 2033-06-13

Description

請求項３に係る発明は、像保持体の表面を帯電する帯電工程と、帯電した前記像保持体の表面に静電潜像を形成する静電潜像形成工程と、前記静電潜像を結着樹脂及び離型剤を含むトナーとキャリア液とを含有する液体現像剤により現像して前記像保持体の表面にトナー像を形成する現像工程と、前記トナー像を記録媒体に転写する転写工程と、転写された前記トナー像を加熱する加熱工程と、加熱された前記トナー像から前記キャリア液を除去するキャリア液除去工程と、前記キャリア液除去工程によりキャリア液が除去された前記トナー像を加熱して定着する定着工程と、を有し、下記（１’）及び（２’）の条件を満たす画像形成方法である。
（１’）前記トナーにおいて、離型剤の溶融温度Ｔｗが結着樹脂の溶融温度又はガラス転移温度Ｔｐよりも高いこと
（２’）前記加熱工程での加熱温度Ｔ１が、前記結着樹脂の溶融温度又はガラス転移温度Ｔｐよりも高く且つ前記離型剤の溶融温度Ｔｗよりも低いこと According to a third aspect of the present invention, there is provided a charging step for charging the surface of the image holding member, an electrostatic latent image forming step for forming an electrostatic latent image on the charged surface of the image holding member, and the electrostatic latent image. Development process for forming a toner image on the surface of the image carrier by developing with a liquid developer containing a toner containing a binder resin and a release agent and a carrier liquid, and transfer for transferring the toner image to a recording medium step and a heating step of heating the toner image transferred, the carrier liquid removing step of removing the carrier liquid from the heated the toner image, the toner image carrier liquid has been removed by the carrier liquid removing step And an image forming method satisfying the following conditions (1 ′) and (2 ′).
(1 ′) In the toner, the melting temperature Tw of the release agent is higher than the melting temperature or glass transition temperature Tp of the binder resin. (2 ′) The heating temperature T1 in the heating step is that of the binder resin. It is higher than the melting temperature or glass transition temperature Tp and lower than the melting temperature Tw of the release agent.

Claims

An image carrier,
Charging means for charging the surface of the image carrier;
An electrostatic latent image forming means for forming an electrostatic latent image on the surface of the charged image carrier;
A liquid developer containing a toner containing a binder resin and a release agent and a carrier liquid is accommodated, and the electrostatic latent image is developed with the liquid developer to form a toner image on the surface of the image carrier. Developing means to form;
Transfer means for transferring the toner image to a recording medium;
Heating means for heating the transferred toner image;
Carrier liquid removing means for removing the carrier liquid from the heated toner image;
Fixing means for heating and fixing the toner image from which the carrier liquid has been removed by the carrier liquid removing means;
And an image forming apparatus that satisfies the following conditions (1) and (2).
(1) In the toner, the melting temperature Tw of the release agent is higher than the melting temperature or glass transition temperature Tp of the binder resin. (2) The heating temperature T1 by the heating means is the melting temperature of the binder resin or It is higher than the glass transition temperature Tp and lower than the melting temperature Tw of the release agent.

The image forming apparatus according to claim 1, further satisfying the following condition (3).
(3) The heating temperature T2 by the fixing means is higher than the melting temperature Tw of the release agent.

A charging step for charging the surface of the image carrier;
An electrostatic latent image forming step of forming an electrostatic latent image on the surface of the charged image carrier;
A developing step of developing the electrostatic latent image with a liquid developer containing a toner containing a binder resin and a release agent and a carrier liquid to form a toner image on the surface of the image carrier;
A transfer step of transferring the toner image to a recording medium;
A heating step of heating the transferred toner image;
A carrier liquid removing step of removing the carrier liquid from the heated toner image;
A fixing step of heating and fixing the toner image from which the carrier liquid has been removed by the carrier liquid removing step ;
And an image forming method that satisfies the following conditions (1 ′) and (2 ′):
(1 ′) In the toner, the melting temperature Tw of the release agent is higher than the melting temperature or glass transition temperature Tp of the binder resin. (2 ′) The heating temperature T1 in the heating step is that of the binder resin. It is higher than the melting temperature or glass transition temperature Tp and lower than the melting temperature Tw of the release agent.

The image forming method according to claim 3, further satisfying the following condition (3 ′):
(3 ′) The heating temperature T2 in the fixing step is higher than the melting temperature Tw of the release agent.