If you are interested in color postcards printing, you can try various kinds of embossing. The types include:
Blind Emboss: This does not use ink or foil for highlighting the embossed region. The changes in the dimensional appearance of the material are the only noticeable difference that results from the embossing. Blind embossing is a process that provides a clean and subtle or distinctive image on the paper stock. It can be best used for creating a subtle impression or low level of attention to the piece. However, it provides a slight difference for the finished work.