Generally the heat transfer paper’s working principle is that defined pattern on computer is printed on the heat transfer paper by inkjet printer, and then the pattern is transferred to materials by high temperature and pressure. Heat transfer paper can print colorful pattern in one time.
Stamping oil paper is mainly printing metallic style pattern. But inkjet printer can not print these kinds of pattern on the transfer paper, so the printing process of stamping oil paper is to engrave some letters on special film and then heat transfer the film onto materials. Therefore, stamping oil paper belongs to heat transfer field because of their printing principle. For some special color, such as gold and silver, gold stamping oil paper and silver stamping oil paper is necessary to complete the printing process. In addition, one color can be covered on the materials in one time.