JP2013057899A5

JP2013057899A5 -

Info

Publication number: JP2013057899A5
Application number: JP2011197468A
Authority: JP
Filing date: 2011-09-09
Publication date: 2014-11-13
Anticipated expiration: 2031-09-09

Description

請求項５に係る発明は、
前記熱交換処理において、前記第１配管における前記凝集粒子分散液の流通、及び前記第２配管における前記トナー粒子分散液の流通を、下記式（１）で示されるレイノルズ数Ｒｅが１００以上１５０００以下を満たすように行う請求項３に記載の静電荷像現像用トナーの製造方法。
・式（１）：Ｒｅ＝［配管相当直径（ｍ）×分散液の流速（ｍ／ｓ）×分散液の流体密度（ｋｇ／ｍ^３）］／分散液の流体粘度（Ｐａ・ｓ） The invention according to claim 5
In the heat exchange treatment, the flow of the aggregated particle dispersion in the first pipe and the flow of the toner particle dispersion in the second pipe have a Reynolds number Re represented by the following formula (1) of 100 to 15000. The method for producing a toner for developing an electrostatic image according to claim 3, wherein the toner is developed so as to satisfy
Formula (1): Re = [equivalent pipe diameter (m) × dispersion flow velocity (m / s) × dispersion fluid density (kg / m ³ )] / dispersion fluid viscosity (Pa · s)

請求項１０に係る発明は、
前記熱交換器において、前記第１配管における前記凝集粒子分散液の流通、及び前記第２配管における前記トナー粒子分散液の流通を、下記式（１）で示されるレイノルズ数Ｒｅが１００以上１５０００以下を満たすように行う請求項８に記載の静電荷像現像用トナーの製造装置。
・式（１）：Ｒｅ＝［配管相当直径（ｍ）×分散液の流速（ｍ／ｓ）×分散液の流体密度（ｋｇ／ｍ^３）］／分散液の流体粘度（Ｐａ・ｓ） The invention according to claim 10 is:
In the heat exchanger, the flow of the aggregated particle dispersion in the first pipe and the flow of the toner particle dispersion in the second pipe have a Reynolds number Re represented by the following formula (1) of 100 to 15000. 9. The apparatus for producing a toner for developing an electrostatic charge image according to claim 8, wherein the toner is developed so as to satisfy the condition.
Formula (1): Re = [equivalent pipe diameter (m) × dispersion flow velocity (m / s) × dispersion fluid density (kg / m ³ )] / dispersion fluid viscosity (Pa · s)

Claims

Heating the toner particle dispersion in which the toner particles are dispersed, and controlling the shape of the toner particles;
Using a heat exchanger, heat exchange treatment is performed between the toner particle dispersion before heating and the toner particle dispersion after heating, the temperature of the toner particle dispersion before heating is increased, and the temperature after heating is increased. Reducing the temperature of the toner particle dispersion;
A method for producing a toner for developing an electrostatic charge image.

Preparing a raw material dispersion in which at least resin particles are dispersed;
A step of aggregating at least the resin particles in the raw material dispersion to form aggregated particles;
Heating the aggregated particle dispersion in which the aggregated particles are dispersed to fuse and coalesce the aggregated particles to form toner particles;
A heat exchanger performs a heat exchange treatment between the aggregated particle dispersion before heating and the heated toner particle dispersion in which the toner particles are dispersed, and the temperature of the aggregated particle dispersion before heating. And lowering the temperature of the toner particle dispersion after heating, and
A method for producing a toner for developing an electrostatic charge image.

In the heat exchange treatment, each particle is connected to each pipe in a state where the first pipe through which the aggregated particle dispersion before heating flows and the second pipe through which the toner particle dispersion after heating flows are adjacent to each other. The method for producing a toner for developing an electrostatic image according to claim 2, wherein the toner is developed by circulating a dispersion.

The time for the temperature of the toner particle dispersion after heating to fall to the glass transition temperature of the resin constituting the resin particles of the aggregated particles after heating the aggregated particle dispersion is within 10 minutes. 4. A method for producing a toner for developing an electrostatic charge image according to 3.

In the heat exchange treatment, the flow of the aggregated particle dispersion in the first pipe and the flow of the toner particle dispersion in the second pipe have a Reynolds number Re represented by the following formula (1) of 100 to 15000. The method for producing a toner for developing an electrostatic image according to claim 3, wherein the toner is developed so as to satisfy
Formula (1): Re = [pipe equivalent diameter (m) × dispersion flow velocity (m / s) × dispersion fluid density (kg / m ³ )] / dispersion fluid viscosity (Pa · s)

Toner particle shape control means for heating the toner particle dispersion in which the toner particles are dispersed and controlling the shape of the toner particles;
A heat exchange treatment is performed between the toner particle dispersion before heating and the toner particle dispersion after heating, the temperature of the toner particle dispersion before heating is increased, and the toner particle dispersion after heating is heated. A heat exchanger that lowers the temperature;
A method for producing a toner for developing an electrostatic charge image.

Aggregated particle forming means for at least aggregating the resin particles in the raw material dispersion in which the resin particles are dispersed to form aggregated particles,
A toner particle forming means for heating the aggregated particle dispersion in which the aggregated particles are dispersed to fuse and coalesce the aggregated particles to form toner particles;
A heat exchange treatment is performed between the aggregated particle dispersion before heating and the heated toner particle dispersion in which the toner particles are dispersed, the temperature of the aggregated particle dispersion before heating is increased, and heating is performed. A heat exchanger for lowering the temperature of the toner particle dispersion later,
An apparatus for producing toner for developing an electrostatic charge image.

In the state where the heat exchanger is adjacent to the first pipe through which the aggregated particle dispersion before heating flows and the second pipe through which the toner particle dispersion after heating flows, the particles are connected to the pipes. The apparatus for producing an electrostatic charge image developing toner according to claim 7, wherein the apparatus is a heat exchanger for circulating the dispersion liquid.

The time for the temperature of the toner particle dispersion after heating to fall to the glass transition temperature of the resin constituting the resin particles of the aggregated particles after heating the aggregated particle dispersion is 10 minutes or less. 9. The apparatus for producing a toner for developing an electrostatic charge image according to 8.

In the heat exchanger, the flow of the aggregated particle dispersion in the first pipe and the flow of the toner particle dispersion in the second pipe have a Reynolds number Re represented by the following formula (1) of 100 to 15000. 9. The apparatus for producing a toner for developing an electrostatic charge image according to claim 8, wherein the toner is developed so as to satisfy the condition.
Formula (1): Re = [equivalent pipe diameter (m) × dispersion flow velocity (m / s) × dispersion fluid density (kg / m ³ )] / dispersion fluid viscosity (Pa · s)