The invention discloses an aqueous colorful
printing ink specially used for paper for daily use, and a preparation method thereof. The aqueous colorful
printing ink specially used for paper for dailyuse is composed of, by weight, 5 to 10.5 parts of a binder, 0.4 to 6 parts of an edible natural
pigment, 1 to 6 parts of powdery
active carbon, and 40 to 100 parts of deionized water. According to thepreparation method, the edible natural
pigment, and the binder are uniformly mixed with deionized water respectively, and then are mixed so as to obtain the aqueous colorful
printing ink specially used for paper for daily use. Deionized water is taken as a
solvent, so that using of toxic organic solvents is avoided, and aqueous printing ink safety is improved; the edible natural
pigment is adopted, so that environment protection safe using requirements are satisfied; product preparation difficulty is not high, and the preparation method is suitable for on-site large
batch production; the obtained product is excellent in permeability and bonding force, decolouring is not easily caused, and the aqueous colorful printing ink can be used for pattern printing,
coating,
spray coating, multilayer bonding, and the life of paper for daily use.