How do tattoos work? by Dudley

During our skin unit I was interested in how a tattoo works. Artists create tattoos by injecting ink into a person's skin. To do this, they use an electrically powered tattoo machine that resembles a dental drill. The machine moves a solid needle up and down to puncture the skin between 50 and 3,000 times per minute. The needle penetrates the skin by about a millimeter and deposits a drop of ink into the skin with each puncture. It seems like the ink would just come off with the dead skin right? It doesn't because the ink gets injected into the dermis. When you look at a tattoo you are actually looking through the epidermis and into the dermis. Here is the site that I got my information.