Thermal transfer film is a new type of printing technology. This type of thermal transfer film printing is a printing method that uses a piece of film as a material to transfer the pattern on the film to other objects. A variety of vivid patterns and texts can be printed with this type of thermal transfer film printing. There are also many kinds of objects that can be printed. According to the different objects to be printed, it can be divided into clothing heat transfer printing technology, wood heat transfer printing technology, metal material heat transfer printing and so on. This technology can also be divided into water transfer printing film technology, air transfer paper flower film technology, ultra-low temperature transfer paper flower film technology, etc. according to the different methods used.

Thermal transfer film generally consists of 3 to 5 layers. The three-layer heat transfer film is composed of the corium layer, the printing layer and the adhesive layer; the four-layer heat transfer film is composed of the corium layer, the release layer, the printing layer and the adhesive layer; the five-layer heat transfer film is composed of the corium layer, It is composed of release layer, printing layer, adhesive layer and hot melt powder layer.

Sublimation transfer printing film refers to the text and graphics containing adhesive, under the combined effect of heat and pressure, the release layer is released from the medium plastic film, and the special effect of the transfer paper on the surface of the printing process is fixed.

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