Tips for tinplate box packaging and printing
tinplate box, small round tinplate box, seamless round tin box, this tinplate box with size Dia 96x41(h)mm, Tips for tinplate box packaging and printing, Tinplate packaging is a common tin box we usually shop. It is made of tinplate as the material. Due to the particularity of the production material tinplate, its printing process is different from the surface printing of ordinary packaging materials. Here are some tips for tinplate box packaging printing.
Before color printing tinplate box packaging, the printing area must be whitened in advance, because white is the base color of all colors, and color printing after white printing can better highlight the gorgeousness of the color. Affected by the coverage of printing inks, it is often necessary for a monochrome machine to do a secondary whitening process, so that the whiteness can reach about 80%. It is also required that the printed white paint can have a good bonding force with the tinplate box, and can withstand high-temperature baking without discoloration.
The printing of tinplate box packaging has relatively high requirements for color. In addition to the high degree of water resistance of the printed pigments, the requirements for the coloring power and durability of the pigments are also relatively high. In addition to the characteristics of general offset printing inks, it must also have a certain degree of heat resistance. Because the surface of the tinplate box packaging is smooth and will not penetrate water, the ink needs to be baked at a high temperature if it is to be heat-fixed.
Since the surface of the tinplate box packaging cannot penetrate water, it is necessary to equip a drying room in the printing process. The printing ink needs to be baked at a high temperature to fully bond with the surface of the tinplate. It is insoluble in water and does not absorb solvents. This is also a difference between tinplate packaging printing and other offset printing, and it is also a problem that we need to pay special attention to. Therefore, the printing line of tinplate packaging will be longer than other offset printing.