KURIMOTO Co-LAB English|Kneading, Grinding, Drying

Toner binders

碳粉粘合剂 / Tonerbinder / 토너 바인더

Description of Final products

Toner binder with improved low-temperature fixing, hot offset, grindability, and pigment dispersibility

Applications

Dry color toner, circuit board, label printing, etc.

Raw materials to be processed

※This process is just one example, and the manufacturing methods vary by company.

Raw materials to be processed
Condensation
reaction &
pulverization
A batch-type condensation reaction is performed under a nitrogen gas or reduced pressure. By changing the reaction conditions, two types of powder materials are produced.
Melting &
Kneading
Two types of polyester-based materials are fed in precise amounts, and then uniformly melted and kneaded while being stirred.

It is required to knead the materials uniformly in a short time to prevent any deterioration of the raw materials.

The twin-screw continuous kneader “KRC Kneader” enables the production of uniform and stable products in a short time, by the following mechanical characteristics.

Excellent continuous kneading performance even achieved with a short L/D ratio

Excellent dispersion effect achieved by paddles with small clearances

Kneading temperature controlled by heating the jacketed barrel


Cooling
The kneaded material is rapidly cooled and crushed using a steel belt or similar equipment.
Pulverizing
The material is pulverized and adjusted to the specified particle size.
Finished products