Nowadays, the skills used for plastic sealing machines can be divided into two categories. One method is to directly heat from the electric heating plate, which involves introducing it into the heating zone through a front rubber roller, and then pressing and exporting it. This processing skill is relatively backward. Due to the step-by-step heating and pressurization process, the surface of the processed item is prone to air saturation and poor flatness. But this skill has low difficulty, low manufacturing cost, and minimal heat loss during the processing. Another type is that the leading roller is a hot press roller, which is heated and pressurized synchronously, and then enters the rear rubber roller with cooling and leveling functions for export. The methods for obtaining heat from the leading roller are divided into two types: internal conduction heat and external radiation heat. Generally, large machines and coil machines use the former method. Choose the latter method for smaller models. Nowadays, this type of hot press roller technology is relatively advanced because heating and pressure are synchronized during the processing, eliminating the problem of bubbles in plastic sealed items, and enhancing the visual effect of plastic sealed items through cooling and leveling. Currently, the production of domestic plastic sealing machines is limited by skills, processes, materials, and other conditions, and few manufacturers choose this skill. The Deli brand series plastic sealing machines produced by the Mechanical Skills Branch of Beijing Culture and Sports Department Store Industry United Company have now adopted this skill.

From the development process of plastic sealing skills, due to the improvement of the performance of glue machines and the development of various special films, this special processing method will have great potential for further development. The use of textured films, matte films, and ultra-low temperature films that enhance the artistic function of components has great potential for development. In addition, a newly developed hot stamping technique can use a special hot stamping film to cover the font that needs to be processed, and perform hot stamping treatment on the letterheads of copies and other documents. After processing by a plastic sealing machine, the hot stamping effect can be achieved, making the previously cumbersome processing method simpler.