Toner manufacturing method and toner
AssigneeFUJIFILM Business Innovation Corp.
InventorsYuta Saeki, Takahiro Yamashita, Kazuhiko Nakamura, Yuji Isshiki
Life of this patent
Estimating the term…
Abstract
A toner manufacturing method includes a first step of filtering toner particles obtained by a wet manufacturing method, a second step of squeezing the toner particles and making water pass through the toner particles, and a third step of squeezing the toner particles and ventilating compressed air through the toner particles, in which Condition (1) and Condition (2) are satisfied, Condition (1): a temperature T of the water passing through the toner particles in the second step satisfies “10° C.≤T≤35° C.”; and Condition (2): a squeezing pressure P1 in the second step and a squeezing pressure P2 in the third step satisfy “0.2 MPa≤P1<P2≤0.8 MPa”.
Claims10
A toner manufacturing method comprising:
- a first step of filtering toner particles obtained by a wet manufacturing method, wherein a pressure of 0.2 MPa or more and 0.7 MPa or less is applied to the toner particles in the first step;
- a second step of squeezing the toner particles and making water pass through the toner particles;
- and
- a third step of squeezing the toner particles and ventilating compressed air through the toner particles, wherein the compressed air is ventilated through a pipe connected to a filter chamber,
- wherein Condition (1) and Condition (2) are satisfied,
- Condition (1):
- a temperature T of the water passing through the toner particles in the second step satisfies “10° C.≤T≤35° C.”;
- and
- Condition (2):
- a squeezing pressure P1 in the second step and a squeezing pressure P2 in the third step satisfy “0.2 MPa≤P1<P2≤0.8 MPa”.
Dependencies are inferred from the claim text.