Emulsion coloring materials for ink jet printers and methods of producing the same

An emulsion coloring material for ink jet printer, comprising:

• an emulsion solution comprising water and a copolymer resin styrene and 2-ethylhexylacrylate and butylacrylate
• a chromatic material;
• a color developer;
• and
• microparticles which are insoluble in inorganic solvents, wherein
• the chromatic material and the color developer react to form a reaction product that is present on the microparticles, and
• the ratio of copolymerization of the copolymer resin [(styrene):(2-ethylhexylacrylate or butylacrylate)]
• is in a range from 7:3 to 9.5:0.5.

A method for manufacturing an emulsion coloring material for ink jet printer, comprising mixing

• an emulsion comprising:
• an emulsion solution comprising water and a copolymer resin styrene and 2-ethylhexylacrylate or butylacrylate;
• a chromatic material;
• and
• a color developer or
• mixing an emulsion comprising:
• an emulsion solution comprising water and a copolymer resin styrene and 2-ethylhexylacrylate or butylacrylate;
• a chromatic material;
• a color developer;
• and
• microparticles which are insoluble in organic solvents, wherein
• the chromatic material and the color developer react to form a reaction product that is present on the microparticles, and
• the mixing temperature is at most 30° C.