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US 7,160,380 B2Granted
Organic pigment fine-particle, and method of producing the same
AssigneeFuji Photo Film Co., Ltd.
InventorsHideki Maeta, Yuki Shimizu, Tadahisa Sato
Life of this patent
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Abstract
A method of producing a fine particle of an organic pigment, containing the steps of: flowing a solution of an organic pigment dissolved in an alkaline or acidic aqueous medium, through a channel which provides a laminar flow; and changing a pH of the solution in the course of the laminar flow.
Claims11
A method of producing a fine particle of an organic pigment, comprising the steps of:
- flowing a solution of an organic pigment dissolved in an alkaline or acidic aqueous medium, through a channel which provides a laminar flow;
- and
- changing a hydrogen ion exponent (pH) of the solution in the course of the laminar flow.
Dependencies are inferred from the claim text.