tinplate

    The object of metal printing non-absorbent material a low-carbon tinplate, commonly known as tin. Tinplate printing principle is similar to offset printing, but in another special on the process side, such as:

    1. Tin by the printed ink to remain on the surface to be through some form of heat to make it dry curing;

    2. Bright tin surface tin layer of gloss to the spectral characteristics of a black phase. Thus before the color printing must be in the tinplate surface coated with a layer of white paint. Of course sometimes special artistic effects based on the product pattern can also be partially coated with white paint or direct use of the tinplate tin-plated surface the appearance of;

    3. Tinplate printing finished. To be transferred to the next process machining, container or other packaging materials into various shapes. In the machining process, the coating of tinplate surface of the ink must be resistant to mechanical shock, anti-extension. Special products such as canned food container, the ink coating also has the physical properties of high pressure steam. This must have excellent adhesion between the ink coating and tinplate surface.

   Tinplate surface of the ink coating adhesion is good or bad, has been the professionals in practice for a long explore, carefully study the issue. It is related to the surface properties of tin itself, the type of ink, coating, baking temperature, and the ink coating thickness and other factors used in the printing process. On how to enhance the adhesion between the ink coating with tin, to talk about superficial personal views.