Aqueous black ink

The invention discloses an aqueous black ink. The aqueous black ink comprises, by mass, 13-14 parts of carbon black, 30-33 parts of an acrylic resin emulsion, 3.5-4.5 parts of a water-soluble acrylic resin, 21-24 parts of a styrenated acrylic acid dispersant, 23-24 parts of deionized water, 6-7 parts of a microcrystalline wax emulsion, 4-6 parts of an assistant, and 2-3 parts of a lavender essence. The aqueous ink has the advantages of good printing adaptability, wet friction resistance, high luster and good adhesion, can be used for printing different kinds of papers and plastic films, such as publication papers, packaging papers and corrugated papers, and is also suitable for high-speed printing. The application of the aqueous ink can reduce the hidden fire hazards, can reduce the pollution to the atmosphere, and allows the environment in a printing room to be always clean. Additionally, the addition of the lavender essence makes the ink have a certain fragrance, and overcomes a defect of the unpleasant smell of traditional inks.