The present invention is used as a bulletin board, signboards, billboards and display panels, and more particularly relates to a signboard manufacturing method for use for plant labeling to display information guide for plants such as trees. ; The present invention comprises a first step (S1) for preparing a material cutting by cutting the stamping plate (1) made of a metal plate to the required size; A second step (S2) of performing surface treatment so that unevenness is formed on the entire surface by spraying glass beads through the injection nozzle of the injector over the entire marking plate 1 prepared in the first step; A third step (S3) of removing foreign substances by injecting air by an air nozzle of an air compressor (Air Compressor) to the stamping plate 1 subjected to surface treatment with glass beads in the second step; ; Attaching the sheet paper 5 on the imprinting plate (1) manufactured in the third process, designing a pattern, letters, symbols, etc. on the sheet paper 5 and the designed portion of the sheet paper 5 configured to pass through the hole 4th process (S4) which adheres; Stamping work by spraying sand on the part of the pattern paper 5, the pattern, letters, symbols, etc. are designed as a spray nozzle of a sandblast machine on the sheet paper 5 attached to the stamping plate in the fourth step 5th process (S5) which performs; A sixth step (S6) of removing foreign matters by spraying air by an air nozzle of an air compressor when the stamping operation is completed in the part designed in the fifth step; A seventh process (S7) of coloring a designated color with a dye on a design part imprinted with a pattern, a letter, a symbol, etc. of the imprinting plate 1 in which the foreign matter is removed in the sixth step; An eighth step (S8) of separating the sheet paper (5) from the stamping plate (1) in which the coloring is completed on the design portion in the seventh step; In a ninth step S9 of spraying an acrylic urethane coating agent on the surface of the imprinting plate 1 from which the sheet 5 is peeled off in the eighth step by spraying nozzles to perform a coating treatment to complete the signboard S. It is done. ; In the present invention as described above, the signboard surface treatment by the glass bead over the entire surface to prevent the occurrence of light reflections, thereby clearly displaying the display information such as imprinted patterns or characters, showing a soft and soft feeling, You can get a signboard. ; Engraving plate, glass bead, sheet paper, designated color
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