Printing paste containing laccaic acid pigment and printing technology thereof

The invention discloses printing paste containing laccaic acid pigment and a printing technology for cotton fabric and silk fabric thereof. The printing paste containing the laccaic acid pigment is prepared from, by weight, 50-65% of starch raw paste, 2-5% of the laccaic acid pigment, 2-5% of urea, 1-4% of mordant and the balance water. The printing paste containing the laccaic acid pigment is adopted for carrying out printing on the cotton fabric according to the technology of printing, drying, steaming and aftertreatment; the printing paste containing the laccaic acid pigment is adopted for carrying out printing on the silk fabric with a pH value adjusted to be 4-5 according to the technology of printing, drying, steaming and aftertreatment, the printed fabric is bright in color and has an anti-ultraviolet function, laccaic acid pigment printing meets the requirements for ecology and environmental protection, the cotton fabric and the silk fabric printed through the laccaic acid pigment have good color fastness, and colors of printed products can be enriched by using different kinds of the mordant.