Printing process for invisible pigments

[0012] First use the ILLUSTRATOR drawing software to draw the required printing pattern on the surface of the gypsum board with a special color painting method;

[0013] Then, according to the size required for production, special color separation sheets are made, so that the invisible pattern can achieve the best effect of light display, which cannot be achieved by general drawing;

[0014] According to the size required for production, make a color separation screen printing plate, use polyester silk as the screen, and pre-treat the stretched screen in the screen frame if necessary;

[0015] Prepare invisible pigment: surface adhesive agent A adopts polyethylene resin or transparent ink C-31 for screen printing; ultraviolet powder B adopts imported Sr5(PO4)3Cl:Eu 2+ The external liner powder of the system includes red UVRed or yellow UVYellow or blue UVBlue or green UVGreen, and the color can be selected according to needs; Solvent C uses rosin water, and drier D is MERITONMT;

[0018] First use the ILLUSTRATOR drawing software to draw the required printing pattern on the surface of the animal leather with a special color painting method;

[0019] Then, according to the size required for production, special color separation sheets are made, so that the invisible pattern can achieve the best effect of light display, which cannot be achieved by general drawing;

[0020] According to the size required for production, make a color separation screen printing plate, and use polyester silk as the screen; then pre-treat the screen stretched in the screen frame;

[0021] Modulation of invisible pigments: adjust invisible pigments according to needs;

[0022] Coating the surface treatment agent S5-19.1T on the surface of the animal leather once, you can use screen printing on the surface of the leather, use the prepared invisible pigment, and use the screen printing machine to print the drawn pattern. The screen printing method Porous or stencil can be used, whic