Heat transfer printing is an emerging printing process. The printing method of this process is divided into two parts: transfer paper printing and transfer processing. Transfer paper printing uses dot printing (resolution up to 300dpi), and the pattern is pre-printed on the surface of the paper. The printed pattern is rich in layers, bright in color, and ever-changing. , small color difference, good reproducibility, can achieve the effect required by the pattern designer, and is suitable for mass production. The transfer process uses a Heat Transfer Machine to transfer the exquisite pattern on the transfer paper to the product surface in one step (heating and pressure). After forming, the ink layer is integrated with the product surface, making it lifelike and beautiful, which greatly improves the quality of the product.