Thermal transfer paper for thermal transfer ribbon and preparation method of thermal transfer paper

The invention discloses thermal transfer paper for a thermal transfer ribbon and a preparation method of the thermal transfer paper. The thermal transfer paper for the thermal transfer ribbon is composed of a paper base and a thermal transfer ribbon thermal transfer coating, coating components of the thermal transfer ribbon thermal transfer coating comprise filler, an adhesive, latex, a lubricant and a dispersant, and the filler is a compound composition of kaolin, silicon dioxide and copolymerized organic resin microspheres; the preparation method of the copolymerized organic resin microspheres comprises the following steps: (1) preparing a seed emulsion; (2) preparing a nuclear emulsion; and (3) preparation of a shell emulsion: emulsifying a methacrylic acid monomer, an acrylonitrile monomer and divinylbenzene by using an emulsifier, mixing the obtained shell mixed monomer pre-emulsion and an initiator into the core emulsion in the step (2), and reacting at 80-90 DEG C for 5-7 hours to obtain the copolymeri