The manufacturing method of the present invention is as follows: Step 1: Dissolve 10 parts by weight of
raw material A in 300 parts by weight of water, and add 2 parts by weight of
raw material B and 0.2 parts by weight of
polyethylene glycol. Step 2: Add 5 parts by weight of butyl
titanate and 1 part by weight of
organic acid, and heat at 75°C for 2 hours to react. Step 3: Add 4 parts by weight of
ethylene glycol and 0.2 parts by weight of
hydrochloric acid, and stir for 1 hour. Step 4: Sealed and aged at 50°C for 24 hours, washed with water, centrifuged, isolated from
oxygen, and calcined for 4 hours to obtain a preliminary product. Step 5: Disperse 10 parts by weight of the product in 400 parts by weight of N,N'-
dimethylacetamide, add 0.2 parts by weight of 4-dimethylaminopyridine and 5 parts by weight of
styrene-
maleic anhydride copolymer, and heat to 45°C to react for 12 hours. Step 6: Wash with
ethanol, separate, and dry, then mix with dispersant,
pigment,
coupling agent, and
solvent, and
grind to form a composite functional
pigment.