To prevent the ink printed on glass products from falling off(make glass photo prints), pay attention to the following points:
1. Pre-processing
Clean the glass surface: Use alcohol or detergent to thoroughly clean the glass surface, remove impurities such as grease and dust, and keep the surface clean.
Apply coating: Apply a layer of special UV coating on the glass surface, which can enhance the adhesion of ink to glass.
2. Printing process
Choose the right ink: Use UV ink designed for glass materials to ensure that the ink has good adhesion.
Adjust printing parameters: Optimize the printer's parameter settings, such as printing speed, nozzle height, etc., to ensure that the ink is evenly attached to the glass surface.
Control environmental humidity: Choose a dry environment for printing to avoid humid air affecting the chemical reaction and adhesion of the ink.
3. Post-processing
Drying: After printing, send the product to the oven in time to dry the glass to ensure that the ink is completely cured.
Spray varnish: Spray a layer of varnish on the surface of the printed pattern to form a protective layer to prevent the ink from being oxidized and falling off.
Through the above methods, the adhesion of ink on the glass can be effectively improved to prevent it from falling off. The entire process above can be completed with one glass printing machine, which is convenient and efficient. If you are interested, please feel free to consult!
