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Huayu Automation - The Difference Between Screen Printing and Hot Stamping
1. Different ways
(1). Silk screen printing: refers to the use of silk screen as the base, and through the photosensitive plate making method to make screen printing plates with pictures and texts.
(2). Hot stamping: refers to hot stamping text and patterns of materials such as colored foil on the front or back cover of the hardcover book shell, or embossing various embossed titles or patterns by hot pressing.
2. Different printing methods
(1). Screen printing: screen printing is composed of five elements, screen printing plate, squeegee, ink, printing table and substrate. When printing, pour ink on one end of the screen printing plate, use a squeegee to apply a certain pressure to the ink part on the screen printing plate, and at the same time move towards the other end of the screen printing plate at a uniform speed, the ink is moved by the squeegee from the image and text Part of the mesh is squeezed onto the substrate.
(2). Hot stamping: the heated stamping head is used to heat the metal or paint laminate on the stamping film to the surface of the workpiece to be decorated or marked. The four basic conditions of the hot stamping process: the hot stamping head includes a hot stamping template, a heater, and a pressure transmission mechanism.
3, Different principle
(1). Silk screen printing: use the basic principle that the screen printing plate has the ink through the mesh in the graphic part and the non-image and text part is not through the ink.
(2). Hot stamping: the process of transferring the pattern on the anodized aluminum to the substrate through the action of heat and pressure. When the printing plate heats up to a certain extent with the attached electrothermal base plate, it is imprinted through the anodized aluminum film and the paper. The temperature and pressure are used to transfer the adhesive layer, metal aluminum layer and color layer attached to the polyester film. Printed on paper.
Maintenance:
With the development of science and technology, various screen printing and pad printing machines have appeared rapidly. Various company brands focusing on the design and development of pad printers, screen printing, and other product areas have also emerged. Experts suggest that individual users must pay attention to the maintenance of the screen printing machine, and the mesh is a part that cannot be ignored.
The net cloth has a great influence on the quality and safety of screen printing. Therefore, good maintenance of the mesh is necessary. First of all, the screen-printed mesh must be cleaned and degreased during use. If the mesh is not cleaned in time, it will easily lead to poor screen printing and garbled characters when used next time. If the corresponding degreasing work is not carried out, it will easily lead to delamination of the screen. Secondly, marking the service life and the number of weaves on the frame of the mesh is also an important maintenance strategy. This can provide more convenience to the use process. Finally, during the use of screen printing, try to avoid contact with sharp objects to prevent accidental damage to the mesh.
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